EPA-450/3-74-039
January 1974
FULLY PROCEDURALIZED
INSTRUCTION MANUAL
FOR A CHEMILUMINESCENT
OZONE MONITOR
I.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Air and Waste Management
Office of Air Quality Planning and Standards
Research Triangle Park, North Carolina 27711
-------
EPA-450/3-74-039
FULLY PROCEDURALIZED
INSTRUCTION MANUAL
FOR A CHEMILUMINESCENT
OZONE MONITOR
by
Richard L. Dueker
Applied Sciences Associates
Box 158,
Valencia, Pennsylvania 16059
Contract No. 68-02-1078
EPA Project Officer: Stanley F. Sleva
Prepared for
ENVIRONMENTAL PROTECTION AGENCY
Office of Air and Waste Management
Office of Air Quality Planning and Standards
Research Triangle Park, N. C . 27711
January 1974
-------
This report is issued by the Environmental Protection Agency to report technical
data of interest to a limited number of readers. Copies are available free of charge
to Federal employees, current contractors and grantees, and nonprofit organizations
as supplies permit - from the Air Pollution Technical Information Center, Environ-
mental Protection Agency, Research Triangle Park, North Carolina 27711, or from
the National Technical Information Service, 5285 Port Royal Road, Springfield,
Virginia 22151.
This report was furnished to the Environmental Protection Agency by Applied
Sciences Associates .Valencia, Pennsylvania 16059, in fulfillment of Contract No.
68-02-1078. The contents of this report are reproduced herein as received from
Applied Sciences Associates. The opinions, findings, and conclusions expressed
are those of the author and not necessarily those of the Environmental Protection
Agency. Mention of company or product names is not to be considered as an en-
dorsement by the Environmental Protection Agency.
Publication No. EPA-450/3-74-039
11
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SOME THINGS
YOU SHOULD
KNOW ABOUT
THIS BOOK
As you will see from the Table
of Contents, this manual covers
such topics as Installation,
Calibration, Troubleshooting, and
Corrective Maintenance tasks done
on the Bend I x Ozone Monitor. You
won't need to be an electronics
expert to use this book. Servicing
procedures outlined here are simple,
step-by-step sequences, and require
only that you possess fundamental
skills like being able to solder
a wire and read a voltage-ohm
meter.
If you are in doubt about whether
you are qualified to perform the
procedures in this manual, read the
technician requirements beginning
on page 8-21.
What is a Job Performance Aid?
This manual was written using
Job Performance Aid concept.
the
A
for
Job Performance Aid
(or JPA
short) is one of the latest
advancements in technical manuals.
It Is a tool as important to you
as any in a tool kit. JPA is the
result of many years of research
in maintenance communications.
Basical ly, JPA is an AID to you in
the Performance of the Job of
troubleshooting and repair. When
It was written, nothing was left
to chance and the writers covered
every known problem you can expect
to see. In a sIngIe voIume it teI Is
how to quickly and completely
checkout the Bendix Ozone Monitor
Model 8002, and then gives you step-
by-step procedures to use for adjust-
ment or repair.
The manual is large because the
combination of checking and trouble-
shooting procedures used in this
book results In a great many steps.
Under actual working conditions,
however, the number of steps to be
performed to correct any one mal-
function will be relatively small.
You'll only need to use a portion
of the book to solve an everyday
problem.
Maintenance Tasks
The maintenance tasks in this
manual are divided into separate
sections covering installations,
operation, calibration, preventive
maintenance (i.e., replacement
of filters), and corrective mainte-
nance (i.e., replacement of faulty
parts). All of the maintenance
tasks in these sections are arranged
in the same way. The first page of
each task is the Input Conditions
Page which lists the special tools
and the supplies required to per-
form the task. Where no special
tools and equipment are listed,
you can assume that only common
hand tools (I.e., pliers, open end
or adjustable wrenches, screw
drivers, etc.) are required for
the job. The Input Conditions Pace
iii
-------
also describes equipment conditions
i.e., the state that the monitor
must be in before the task can be
performed. For example, some tasks
require that the monitor be at its
stable operating temperature, or
calibrated, before they are per-
formed .
Following the Input Conditions
Page, the step-by-step procedure
for performing the task is pre-
sented. Task steps and illus-
trations are presented on the same
page. Each pair of facing pages
contains all the illustrations re-
quired to perform the steps on
those pages. The JPA will never
ask you to go to another page for
an iI lustration.
When a part is referred to in
a step, it Is usually followed by
a number in parenthesis. An arrow
with this number will point out
the part in the illustration.
When gauges or switches are con-
tained in the illustration, don't
rely on the drawing for the correct
settings. The text will give you
the necessary numbers for setting
or reading the controls.
Troubleshooti ng
The heart of this manual is the
troubleshooting section, Section 6.
The information in Section 6 wi I I
allow you to identify a problem in
the Ozone Monitor and then proceed
to locate the part that is at fault.
Every field-replaceable part in the
monitor, should it malfunction, can
be found using the troubleshooting
procedures.
The Troubleshooting Section begins
with a checkout procedure. Except
for installation and operation, alI
maintenance tasks should begin with
the checkout. If anything is wrong
with the monitor, the checkout will
detect it and refer you to a trouble-
shooting procedure further along In
the troubleshooting section. The
troubleshooting procedure will lead
you to the part that is faulty, and
if necessary, direct you to the
Corrective Maintenance Section for
the proper procedure to replace
the part. Most of the part replace-
ment tasks are so simple that
corrective maintenance tasks were
not written for them. In these
cases, the last step In the Trouble-
shooting Procedure will just say
"Replace (part name)."
When you have performed the cor-
rective maintenance procedure re-
quired for a "fix," it's good
practice to run through the check-
out again, beginning at Step I. If
you can get through the checkout pro-
cedure from beginning to end with-
out discovering another problem,
you are assured that the monitor is
working perfectly.
Specific directions for per-
forming troubleshooting are given
at the beginning of the Trouble-
shooting Section, page 6-1.
Supporting Data
Technical data which may be help-
ful to you, but which is not
immediately needed in performing
the maintenance and troubleshooting
procedures is placed in the last
section of the manual. Parts lists
and parts ordering information are
in the Supporting Data Section.
Also included in this section is
a specification of all the parts
and equipment, in addition to the
monitor itself, which are required
to install, operate, and calibrate
the monitor. You should read this
subsection, beginning on page
8-23, before working with the
monitor.
iv
-------
TABLE OF CONTENTS
Introduction
Model Modifications
Covered
Principles of Operation
InstalI at ion
InstalI the Ozone
Mon i tor 2-I
Operation
Start Up the Ozone
Monitor 3-1
Operate the Ozone Monitor 3-5
Shut Down the Ozone
Monitor 3-9
Cal i brat ion, Zero and Span
Check the Ozone Monitor
Zero and Span Values 4-1
Check the External
Ozone Generator Output 4-3
Calibrate the Ozone
Monitor Using the
External Ozone Generator
(Secondary Calibration) 4-9
Preventive Maintenance
Inspect and Service the
Calibration Sample Filter 5-1
Inspect and Service the
Sample FiIter 5-5
Troubleshooti ng
Directions for Trouble-
shooting 6-1
Troubleshoot the Ozone
Monitor 6-2
Corrective Maintenance
Replace Pump Assembly 7-1
Clean Reed Valve
Assembly 7-7
Replace Internal Ozone
Generator Ultraviolet
Lamp 7-1 I
Replace Internal Ozone
Generator Quartz Tube 7-15
Replace Detector Cell
Assembly 7-21
Adjust Internal Ozone
Generator 7-27
Check Sample and
CaIibration Sample
Flowpaths 7-29
Supporting Data
Schematics 8-1
Supporting Equipment 8-13
Primary Calibration 8-15
Parts List 8-17
Technician Requirements 8-21
-------
SECTION 1. INTRODUCTION
MODEL MODIFICATIONS COVERED
THIS MANUAL COVERS THE FOLLOWING
BENDIX OZONE MONITOR, MODEL 8002,
MODIFICATIONS:
MOD A
The earl lest Model 8002 monitors had
a separate unit, the Ethylene Flow
Box (I) which contained an ethylene
pressure regulator, pressure gauges,
and the diventer valve for checking
the ethylene flow rate. The box
was installed between the ethylene
cylinder and the ethylene inlet on
the ozone monitor. The MOD A monitor
has two flow meters (2) on its front
panel.
MOD A
MOD B
The MOD B monitor is similar to the
MOD A except that all components are
located within the monitor. The
front panel of the MOD B contains
one flowmeter (3), ethylene pressure
gauge (4), pressure regulating knob
(5), and the diverter valve (6).
MOD C
MOD C
The outside appearance of the MOD C
is similar to the MOD B—the differences
are internal. The MOD C can be identified
by the presence of zero and calibrate
lights (7) and recorder terminals (8)
on the front panel and the cooling fan
(9) mounted externally on the rear
panel.
-------
Section I Introduction
PRINCIPLES OF OPERATION
General Theory of Operation
The Bend Ix Ozone Monitor samples
the ambient air, detects the
presence of any ozone in the sample,
and Indicates the amount of ozone
In the air on Its front-panel
meter (or on a chart recorder).
An air pump in the unit con-
stantly pulls in ambient air
for sampling. The unit reacts
quickly to changes in the
amount of ozone in the air,
providing an accurate reading
within 10 seconds after a
change occurs in the Intake
samp Ie.
The basic operating principle
Is this: when ozone is mixed
with ethylene gas, "cheml-
Iuminescence" occurs. This
means that the ozone and
ethylene react chemically to
produce I ight. In the monitor,
a controlled amount of ethylene
gas is mixed with the samples
of air pulled in by the air
pump. If any ozone is present
in the air sample, the chemi-
Iuminescence reaction occurs.
A light-sensitive photomulti-
plier tube senses the Iight,
and produces an output current
which is amplified to drive
the panel meter. If the quan-
tity of ozone in the air sample
increases, more light is pro-
duced, causing a higher out-
put current from the photo-
multiplier tube, and hence a
higher meter reading. If
the ozone quantity decreases,
less light is produced, and
the tube's output current
drops, lowering the meter
reading. If no ozone at all
is present in the air, no
light is produced, and the
meter reads zero.
Refer to Figure I, which shows
the flow paths for the air
samples and the ethylene gas,
for all three modes of operation—
ZERO, CALIBRATE, and AMBIENT
(or NORMAL).
ZERO Mode of Operation. This
mode is used to zero the Ozone
Concentration meter. In this
mode, the Selector Solenoid is
energized, connecting the
Ozone Generator output to the
Reaction Chamber. The evacu-
ation pump pulls air in through
the Chemical Filter (molecular
sieves, activated charcoal,
and Indicating silica gel),
Ozone Generator, Selector
Solenoid, and Reaction Chamber.
The Ozone Generator i s not
energized, so only ozone-
free air reaches the Reaction
Chamber. Since no ozone is
present, no chemiluminescence
occurs, and the photomultl-
plier tube operates at its
"complete darkness" level,
producing only a very small
output current. If left
uncompensated, this current
would produce a slight meter
reading, so the Zero Adjust
Control is provided to
counteract the voltage and
set the meter to "0."
CALIBRATE Mode of Operation.
This mode is used to set
the monitor for accurate
readings. In this mode,
the Selector Solenoid is
again energized, with the
intake air flow path the
same as for the ZERO mode.
But in this mode the Ozone
Generator is energized, and
produces a known quantity of
1-2
-------
Section I - Introduction
ozone. In the Reaction Chamber,
the ozone-bearing air and
ethylene gas are mixed, and
chemlIumlnescence occurs.
Since the Ozone Generator Is
providing a known amoutn of
ozone, the Calibrate Adjust
Control can be used to set
the Ozone Concentration Meter
to the correct reading, as
determined by secondary cali-
bration (see page 4-9).
AMBIENT (or NORMAL) Mode of
Operation. In this mode the
Instrument continuously
monitors the ambient air.
The Selector Solenoid Is
de-energized, so that the
Evacuation Pump now pulls
air In through the Teflon
Filter and Selector Solenoid
and Into the Reaction Chamber.
If there Is any ozone In the
air, It will react with the
ethylene In the Reaction
Chamber, producing an amount
of light proportional to the
quantity of ozone. The
AIR SAMPLE IN
(FOR
MONITORING)
SOLENOID PRESSURE
VALVE REGULATOR
PRESSURE
GAUGE
ETHYLENEIN
SELECTOR
SOLENOID
AIR IN (FOR ^,
ZERO AND w^
CALIBRATION
ADJUSTMENTS)
CHEMICAL
FILTER
OZONE
GENERATOR
AIR
CAPILLARY
ETHYLENE
0 UULT
SINTERED
FILTER
DIVERTER
VALVE
EXHAUST
REACTION
CHAMBER
ETECTOR
ELL
EXHAUST
Figure 1. Ozone Monitor Air Sample and Ethylene Gas Flow
I-3
-------
Section I Introduction
photomuItiplier tube senses
the Iight, and produces an
output current proportional
to the amount of Iight.
This current then operates
the Ozone Concentration meter.
Ethylene Flow. The ethylene
gas flow into the Reaction
Chamber is the same regard-
less of the operating mode.
The ethylene, supplied from
an external cylinder, under-
goes filtration and pressure
regulation before reaching
the Reaction Chamber. This
processing is necessary to
maintain the high accuracy of
the ozone monitor.
OPERATION OF SPECIFIC COMPONENTS
Detector Cell Assembly
Refer to Figure 2. The Detector
Cell consists of the Reaction
Chamber and the Photomultiplier
Tube Assemblies. Air samples
and ethylene are continuously
mixed together in the Reaction
Chamber and, if ozone is present,
chemiIuminescence occurs, pro-
ducing light. The light passes
through the air-tight Glass
Window to the Photosensitive
Coating on the PhotomuItiplier
Tube where it is converted to
electrical current. The sample
and ethylene leave the Reaction
Chamber through the exhaust port,
pass through the evacuation
pump, and exhaust to the outside
air. The design of the chamber
and the location of input and
exhaust ports minimize the
measurement lag time to less
than three seconds.
GLASS WINDOW FOR LIGHT EXPOSURE
TO PHOTOMULTIPLIER TUBE
SAMPLE
INPUT
END PLATE BLOCK
ETHYLENfc
INPUT
Figure 2. Detector Cell Assembly
1-4
-------
Photomultlpl.ter Tube Assembly
Refer to Figure 3. The function
of this assembly Is to sense
any chemI luminescent light
generated In the Reaction
Chamber, and provide « pro-
portional current to operate
the Ozone Concentration meter.
The Photomultipl ier Tube is
in a factory-sealed housing
that provides a completely
dark, low-temperature environ-
ment for the tube. Since the
tube is light-sensitive, it
must be operated in absolute
darkness. Since It Is also
temperature-sensitive, it must
have a low-temperature (+5° C)
environment for stable operation.
The low-temperature environment
also reduces the tube's stead-
state current, thereby Increas-
ing its sensitivity.
The photomultiplier tube
consists of three basic types
of elements; the cathode, the
dynodes, and the anode. The
cathode is photosensitive
and produces free electrons
when it is excited by light.
SAMPlt
INPUT
Section I - Introduction
The dynodes are treated with
a special coating to produce
"secondary emission"; that Is,
when free electrons strike the
surface they release a greater
quantity of electrons. When
light from the Reaction Chamber
strikes the photo-sensitive
cathode, electrons are released
which are attracted to the
adjacent element, a dynode,
since It is held at a more
positive (or less negative)
potential. Due fo the second-
ary emission effect, a larger
quantity of electrons are re-
leased and attracted to the
next dynode. This process is
repeated with a series of
dynodes, each of which Is
increasingly more positive
(or less negative) than the
previous dynode; thus electronic
multiplication or amplification
occurs, assisted by circuits on
the Photomultiplier Assembly PC
Board. The electrons from the
last dynode, eleventh, are
attracted to the anode which is
the most positive element of
PHOTOMULTIPl.ltH AMCMIL*
PC lOAMO
THEHMOELCCTHIC
(MODS B and C
only)
PHOTOICNtlTIVI
COATINO
Figure 3. Photomultiplier Tube Assembly
1-5
-------
Section I - Introduction
the tube and functions as the
final collector of the free
eIectrons.
Output current from the anode
is coupled to the Electrometer
Amplifier PC Board, which
provides the necessary drive
voltage for the Ozone Concen-
tration meter, and chart
recorder output.
Ozone Generator Assembly
Refer to Figure 4. The
basic operating principle of
the Ozone Generator is that
oxygen molecules (02) exposed
to ultraviolet light change
to ozone molecules (03), in
proportion to the intensity
of the Iight. Therefore,
passing air that is to be
used for a calibration sample
past an ultraviolet lamp oper-
ating at the appropirate in-
tensity converts a definite
portion of the 02 molecules
to 03.
The Ozone Generator con-
sists of an Ultraviolet Lamp
inside a Slotted Sleeve, with
an adjacent quartz tube that
conducts the calibration air
sample. The position of the
Slotted Sleeve is set at the
factory to provide the reading
specified on the data sheet
which accompanies each ozone
monitor unit. The sleeve
may be readjusted, if required
(see page 6-27).
Specifications
The minimum performance
specifications for the Ozone
Monitor are presented below.
The system will operate within
these stated performance
parameters under the conditions
Iisted.
Operational Period:
Mod A & Mod B—7 days
unattended.
Mod C—7 or more days
unattended.
POSITIONING
LOCK
SCREW
CALIBRATION SAMPLE
OUTPUT
LAMP
CONTROL
CABLE
1-6
Figure 4. Mods B & C Ozone Generator
-------
Operating Temperature Extremes;
5° and 40° C.
Ambient Temperature Fluctuations:
+ 5° C.
Humidity Range:
10? to 95% relative humidity
Power Line Variations:
105 to 125 volts ac.
Measurement Ranges:
0 to 0.01 , 0.02, 0.05,
O.I, 0.2, 0.5 and
I ppm fulI scale.
Minimum Detectable Sensitivity:
0.001 ppm.
NoIse:
<~T \% on the 0 to O.I
ppm range.
Lag Time:
< 3 seconds.
Response Time:
< 7 seconds to reach 90%
of ultimate indication.
Rise and Fa I I Time:
< 10 seconds to reach 90%
of ultimate indication
after input change (lag
time plus response time).
Zero Drift:
Mod A & Mod B—3^/24 hours
and not to exceed 5$/week
on 0 to O.I ppm range.
Mod C—+ 1^/24 hours or
+ 2$/36 hours.
Span Dri ft:
Mod A & Mod B—Same as
"Zero Drift" except with
stated upscale value.
Mod C--+ 156/24 hours or
+ 2^/36 hours.
Measurement Repeatability;
+ 2% from mean value on the
0 to O.I ppm range.
Interference Equivalent;
< 0.01 ppm.
Linearity:
+ 0.5%.
TotaI Variations:
< 5% of fulI scale/24 hours
with + 5° C variations
utilizing the 0 to O.I ppm
range.
Time Constants:
I, 10 and 40 seconds.
Output:
Mod A & Mod B—0 to 100 mV
full scale (for recorder).
Mod C—0 to 10 mV (recorder)
and 0-1 VDC (other outputs
optional).
Power Requirements:
350 watts @ 125 volts,
60 Hz (50 Hz optional).
1-7
-------
SECTION 2. INSTALLATION
INSTALL THE OZONE MONITOR
INPUT CONDITIONS
Introduction
The installation activity includes
setting up the Ethylene supply and
External- Ozone Generator systems
and connecting them to the Ozone
Monitor. It includes connecting
the sample and exhaust lines and
the chart recorder. When all
connections have been made, the
Monitor is checked for leaks.
This activity should always be
followed by a primary calibration
of the Ozone Monitor using the
Neutral Buffered Potassium Iodide
Reference Method. Refer to page 8-15,
Applicable Mods:
Al I
Special Tools and Test Equipment:
Refer to page 8-13.
Supplies:
Liquid Leak Detector Solution
Ethylene Cylinder, Containing CP
Grade Ethylene
Air Cylinder or Air Pump
Personnel Required;
One Technician
Equ i pment Cond i 11ons:
Ozone Monitor removed from shipping
crate and inspected for visible
damage.
WARN ING
Exercise extreme caution when
performing the following
installation due to the explosive
properties of ethylene gas when
subjected to rapid temperature
rises. Make certain that all
connections are mated properly so
that gas leakage does not occur.
CAUTION
Avoid use of Tygon tubing in the
Sample Introduction and Calibration
Sample Systems.
CAUTION
To avoid damage to fittings in
Monitor, teflon fitting should
be tightened finger tight.
Metal fittings should be tightened
finger tight plus 3/4 turn with a
wrench.
CAUTI ON
When using leak detector solution,
do not spill solution on electrical
components or connections.
WARNING
Use extreme caution when performing
check. Power is applied to the
monitor and electric shock is
possi ble.
2-1
-------
Section 2 - Installation
I. Check that ethylene cylinder ( I )
contains CP grade ethylene.
2. Rotate ethylene pressure regulating
control (2) counterclockwise until
It turns freely.
NOTE
The two stage ethylene regulator
Is secured to the ethylene
cylinder with a left hand threaded
nut.
3. Connect two stage regulator (3 )
to ethylene cylinder ( I ).
4. Connect stainless steel tubing
( 6 ) to ethylene regulator (7 )
NOTE
Be sure stainless steel tubing is
routed in such a manner as to
prevent unnecessary strain on
tubing and connections. Avoid
sharp bends in tubing which could
restrict ethylene flow. Provide
sufficient excess tubing to
permit access to rear panel of
monitor.
8
ETHYLENE
CP
2-2
-------
5.
6.
NOTE
If 1nsta111ng MOD A, connect
stainless steel tubing to
Ethylene Flow Box. Connect flow
box outlet to ETHYLENE INLET
fitting on monitor with tubing
provided.
Connect opposite end of steel
tubing ( 6 ) to ETHYLENE INLET
f i ttIng ( 9) on mon1 tor.
Remove four screws (10) and top
cover (II).
Section 2 - InstaIlation
8. Set POWER switch (12) to ON.
9. SIowIy rotate ethyIene cyIi nder
valve ( 4 ) counterclockwise
until pressure is indicated on
cyIi nder gauge ( 8 ).
10. Adjust regulator control ( 5 )
to obtain output pressure of
30 osi.
II. Adjust ETHYLENE control (13) to
pressure indicated on Supplied
Data Sheet.
7. Connect monitor power plug to
115 VAC, 60 Hz line.
2-3
-------
Section 2 InstalI at ion
NOTE
If installing MOD a, adjust
ETHYLENE control on Ethylene Flow
Box to pressure indicated on
Supplied Data Sheet.
CAUTION
When using leak detector solution,
do not spill solution on electrical
components or connections.
Note
If either diverter valve connection
( 2 ) is found to leak, replace
diverter valve.
WARN'I NG
Use extreme caution when preforming
check. Power is applied to the monitor
and electric shock is possible.
12. Using leak detector solution,
check that fittings on the
ethy lene cyl inder (7), ethylene
regulator (8), ethylene input
(14), ethylene solenoid valve
(6), pressure regulator (3),
pressure gauge ( 4 ), cap!Ilary
tube ( I ), diverter valve ( 2 ),
and diverter valve and detector
eel I tubing ( 5) do not leak.
Repair or replace any leaking
ethylene connections.
ETHYLENE
CP
u u
2-4
-------
Section 2 - Installation
13.
14.
Note
On MOD A Instruments, the pressure
regulator, pressure gauge, capillary
tube, and diverter valve are in the
ethylene flow box, external to the
monitor. Check the fittings on
these components and also the flow
box input and output fittings.
Inside the monitor, check fittings
at the ethylene input, and on the
solenoid valve, ethylene flow meter,
and flow meter to detector cell tubing,
Set MODE SELECTOR switch (9) to
ZERO
Rotate SAMPLE PLUS ETHYLENE
needle valve (II) counterclockwise
until the ball in the flow meter
(12) floats at about 20$ of the
height of the tube.
15. Using a finger, seal off air
flow at Calibration Sample Filter
in let (15). Check that SAMPLE
PLUS ETHYLENE flow meter (4)
slowly decreases to 0. If not,
a leak exists between Calibration
Sample FiIter (13) and SAMPLE PLUS
ETHYLENE flow meter. Refer to
Check Sample and Calibration
Sample Flowpaths, page 7-29.
16. Remove finger from Calibration
Sample Filter inlet (15).
17. Set MODE SELECTOR switch (9) to
AMBIENT.
2-5
-------
18. Using a finger, seal off air
flow at SAMPLE INLET fitting
( I ). Check that SAMPLE PLUS
ETHYLENE flow meter ( 3)
slowly decreases to 0. If
not, a leak exists between
SAMPLE INLET fitting ( I ) and
SAMPLE PLUS ETHYLENE flow
meter ( 3). Refer to Check
Sample and Calibration Sample
Flowpaths, page 7-29.
19. Remove finger from SAMPLE INLET
f i tt i ng ( I ).
20. Rotate ethylene cylinder valve
(4 ) fully clockwise.
21. Set POWER switch ( 2 ) to OFF.
22. Reinstall top cover and secure
with screws.
NOTE
A laboratory air pump and air
trap may be used in place of air
cylinder and two stage regulator,
23. Check that air cylinder ( 5)
contains lab grade air.
24. Connect two stage regulator ( 6 )
to air cyIinder ( 5) .
25. Rotate air pressure regulating
control (7) until it turns
freely counterclockwise.
CTHYLiNI
1
OZONE MON.TOR
ZCHO
AMiitNT I
: i ll
Fut-LSCALt MOM
HANOI SSLCCTOK SlLtCTOI
*ut,v TO SAAII
TEST *U
I (TMVt
'OStC
• SIC , «S€C
^ ,-K V^X V±, TIUE i
Q/ i 1 CAUtRATE Zt HO C|XST AWT PO-M H
~— ADJUST ADJUST S£LECTO«
2-6
-------
Section 2 - Installation
NOTE
Use thick wall rubber tubing,
1/4" I.D., or equivalent for the
following connections unless
otherwise indicated.
26. Connect activated charcoal/
molecular sieve/silica gel
filter ( & ) to air regulator
output ( 18 ).
NOTE
If laboratory air pump and air
trap are used, connect filter
to trap output.
27. Connect filter ( 8 ) to needle
valve ( 9 ).
28. Connect needle valve ( 9 ) to
flowmeter input ( 15 ). Check
that flowmeter ( 16 ) is mounted
in a vertical position.
29. Connect flowmeter output ( 17 )'
to Ozone Generator ( 10 ).
30. Connect Ozone Generator ( 11 )
to trap input ( 14 ) using teflon
tubing.
31. Connect trap output ( 13 ) to
manifold ( 12 ) using teflon
tubing.
NOTE
If a selector valve is used for
sample and calibration systems,
connect manifold outlet to one
selector valve input and the
Sample Introduction System
outlet to the other valve input.
12
8
2-7
-------
Section 2 Installation
32. Connect output side of teflon
filter ( 2) to teflon tubing at
SAMPLE INLET fitting (4 ).
NOTE
Output side of teflon filter is
not marked.
33. Connect teflon tubing to teflon
fiIter IN fitting ( I ).
NOTE
If a selector valve is used for
sample and calibration systems,
connect teflon tubing to
selector valve output.
34.
35.
Connect plastic tubing to EXHAUST
fitting ( 5) of Ozone Monitor.
Route EXHAUST tubing directly to
an outside area at least 20 feet
away from Sample Introduction
System Intake Port.
WARN ING
Do not route exhaust tubing near
windows or inside ventilation
systems. Dangerous concentrations
of ethylene gas may accumulate in
laboratory area.
36. Connect the shielded cable to
the strip chart recorder following
the recorder manufacturers
instructions. Be sure that the
red cable lifg is connected to the
positive ( + ) recorder terminal,
the black cable lug to the
negative (-) recorder terminal,
and the cable shield wire to the
recorder ground or shield con-
nection.
Note
If installing a MOD A or B, use
"the lOOmv range on the strip
chart recorder. For MOD C, use
the lOmv range.
37. Connect the shielded cable to
the RECORDER ( 6) or SIGNAL
OUTPUT ( 3) terminals on the
Ozone Monitor. Be sure to
connect the positive or red
lead to the "+" or red terminal
and the "-" or black lead to
the negative or black terminal.
If a shield lead is present
connect to the "S" terminal.
END OF ACTIVITY
O
©
o
MOD C
2-8
MOD A &
-------
SECTION 3. OPERATION
START UP THE OZONE MONITOR
INPUT CONDITIONS
Introduction
This activity describes the
procedure for starting up the
Ozone Monitor, including the
required time for warm-up and
stabiIization.
Applicable Mods
Al I
Special Tools and Test Equipment
None
Supplles;
None
Personnel Required:
One Technician
Equipment Conditions:
Ozone Monitor installed.
to page 2-1.
Refer
3-1
-------
Section 3 - Operation
I. Set TIME CONSTANT SELECTOR switch
(2 ) to 10.
2. Set MODE SELECTOR switch (8 ) to
AMBIENT.
3. Set FULL SCALE RANGE SELECTOR
switch (7 ) to .5.
Adjust 03 CONCENTRATION meter
( 6 ) to 0 by rotating adjusting
screw (3 ).
Set POWER switch (I ) to ON.
ruu.ro
TOT nut
I CTwnEllf
\
3-2
-------
Section 3 - Operation
Rotate SAMPLE PLUS ETHYLENE
needle valve (4) counter-
clockwise until flowmeter
(5) indicates an air flow
of about 20% of flowmeter
tube height through Ozone
Monitor.
Check that cooling fan (9)
is operating. If not,
refer to Troubleshoot the
Ozone Monitor, page 6-2.
NOTE
AI low Ozone Monitor two hours
to stabilize before performing
calibration and operating pro-
cedures.
END OF ACTIVITY
3-3
-------
Section 3 - Operation
OPERATE THE OZONE MONITOR
INPUT CONDITIONS
Introduction Equipment Conditions:
This activity specifies the Primary Calibration performed.
procedure for collecting a Refer to page 8-15.
sample with the Ozone Monitor. Start Up performed.
The Monitor should always be Refer to page 3-1.
calibrated, using the Internal Secondary Calibration performed,
Ozone Generator or the External Refer to page 4-9.
generator, before It Is operated. Span Check performed.
Refer to 4- I.
ApplIcable Mods;
All
Special Tools and Test Equipment:
None
Supplies;
Data Sheet (supplied with monitor)
Daily Check Sheet
Personnel Required:
One Technician
3-5
-------
Section 3 Operation
I. Connect SAMPLE INLET tubing
(I) to Sample Inlet System.
NOTE
If a selector valve Is used to
select sample or calibration
systems, set valve to permit
flow from the Sample
Introduction System.
2. Set FULL SCALE RANGE SELECTOR
switch (6) to I.
3. Set MODE SELECTOR switch (2) to
AMBIENT..
4. Adjust FULL SCALE RANGE
SELECTOR switch (6) until
03 CONCENTRATION meter (5)
indicates approximately In
center of meter scale.
NOTE
It is preferable to have meter
Indicate in center of meter scale,
since greater accuracy Is obtained
in this area.
Record FULL SCALE RANGE SELECTOR
scale (6) setting on Dally Check
Sheet.
Adjust TIME CONSTANT SELECTOR
switch (3) to 10 SEC.
NOTE
Normal operation setting for TIME
CONSTANT SELECTOR switch Is 10 SEC.
Higher time constant setting may
be necessary to stabilize meter In
lower range settings.
3-6
-------
Section 3 - Operation
7. Record TIME CONSTANT SELECTOR
switch ( 3) setting on Daily Check
Sheet.
8. Adjust SAMPLE PLUS ETHYLENE
flowmeter (4 ) to value specified
on supplied data sheet.
9. Record SAMPLE PLUS ETHYLENE
flow rate on Daily Check Sheet.
NOTE
If strip chart recorder or other
automatic data recording systems
are used, check for proper
operating conditions according
to manufacturers' specifications.
CAUTION
Do not change any control setting
on the Ozone Monitor during the
samp I ing per iod.
END OF ACTIVITY
3-7
-------
Section 3 Operation
SHUT DOWN THE OZONE MONITOR
INPUT CONDITIONS
Introduction
The following procedure should be
used for turning off the Ozone
Monitor and Ethylene supply system,
Applicable Mods:
All
Special Tools and Test Equipment:
None
Supplles:
None
Personnel Required:
One Technician
Equipment Conditions;
Ozone Monitor operating.
NOTE
If Ozone Monitor is shut down for
periods of more than 15 minutes,
a 2-hour stabilization period is
required before operation or
calibration can be performed.
3-9
-------
Section 3 - Operation
I . Set FULL SCALE RANGE SELECTOR
switch ( I) to I.
2. Set POWER switch ( 2) to off.
3. Rotate ethylene cylinder valve
( 3} fully clockwise.
NOTE
If Ozone Monitor is shut down for
periods of more than 15 minutes,
a 2-hour stabilization period is
required before operation or
calibration can be performed.
END OF ACTIVITY
3-10
-------
SECTION 4. CALIBRATION, ZERO AND SPAN
CHECK THE OZONE MONITOR ZERO
AND SPAN VALUES
INPUT CONDITIONS
Introduction
This activity describes the
procedure for making zero and
span checks of the Ozone
Monitor using the Ozone
Generator within the Monitor.
The procedure Is normally
performed before and after
a sampling period and any
time a quick check of the
accuracy of the Monitor Is
desired. Check zero and span
daily.
Appl{cable Mods;
All
Special Tools and Test Equipment:
Refer to page 8-13.
Supplles
Data Sheet (supplied with monitor)
Calibration Data Log
Personnel Required:
One Technician
Equipment Conditions:
Ozone Monitor Start Up performed,
refer to page 3-1, or Monitor
in continuous operation for
at least two hours.
Calibrate the Ozone Monitor
Using the External Ozone
Generator performed. Refer
to page 4-9.
All apparatus previously assembled
by a qualified chemical technician
and a sampling train flowmeter
calibration curve plotted.
-------
Section 4 Calibration
I. Set MODE SELECTOR switch (I)
to ZERO.
2. Compare the SAMPLE PLUS ETHYLENE
flowrate (5) with the flowrate
given in the Supplied Data Sheet,
If necessary adjust the SAMPLE
PLUS ETHYLENE needle valve (*»)
to obtain the correct flowrate.
3. Set TIME CONSTANT SELECTOR
swith (2) to I SEC.
4. Set FULL SCALE RANGE SELECTOR
switch (7) to .01.
5.
6.
7.
8.
9.
10.
II
Wait 10 minutes before proceeding,
Unlock ZERO ADJUST control (3).
Adjust ZERO ADJUST control (3)
until 03 CONCENTRATION meter
indicates 0. Lock ZERO ADJUST
control (3).
Check that the chart recorder
trace is 5% of the chart width
above the chart zero or base Iine.
If not, adjust chart recorder
according to manufacturer's
i nstructions.
Record ZERO ADJUST control
(3) setting as required.
Set FULL SCALE RANGE SELECTOR
switch (7) to .5.
Set MODE SELECTOR
to CALIBRATE.
switch (I)
Wait 10 minutes
proceeding.
before
12. Compare 03 CONCENTRATION meter
(6) indication with the Span
Check Value recorded in the
Calibration Data Log for the
most recent calibration. If
the 03 CONCENTRATION meter (6)
indication differs from the
Span Check Value by more than
14^, perform Calibrate the
Ozone Monitor; refer to
page 4-9.
13. Check that the chart recorder
indicates the same value as the
03 CONCENTRATION meter (6). Be
sure to a I low for the 5% elevated
zero on the chart. If the values
differ by an amount greater than
the accuracy of the chart recorder,
as given in its manufacturer's
specifications, check out the
recorder according to manufacturer's
specifications, check out the
recorder according to manufacturer's
instructions.
END OF ACTIVITY
4-2
-------
Section 4 Calibration
CHECK THE EXTERNAL OZONE
GENERATOR OUTPUT
INPUT CONDITIONS
Introduction
The following procedure should
be performed at least once a
month to check the accuracy of
the External Ozone Generator.
This check should be performed
immediately before calibration.
Refer to page 3-3.
Applicable Mods:
All
Special Tools and Test Equipment:
Spectrophotometer, capable of
measuring absorbence at 352 NM
Sampling train, refer to Support
Equipment description, page 7-
One pair matched I CM
spectrophotometer cells
Timer or stopwatch, readable
to the nearest second
Supplies;
Spectrophotometer operat i ng
instructions
Absorbing reagent 65 ml or more
Absorbence to Ozone Concentration
conversion curve or table
Air supply flowmeter calibration
curve
Samp Ii ng tra in fIowmeter
calibration curve
External Ozone Generator
calibration curve
DistiI led water, 2 I
Soft lint-free cloth
Personnel Required:
One Technician
Equipment Conditions:
Ozone Monitor installed. Refer
to page I -1.
Primary Multipoint Calibration
performed. Refer to page 8-15.
4-3
-------
Section 4 CaIibration
NOTE
Before performing this task, start
up the spectrophotometer following
the manufacturer's instructions.
NOTE
The following connections should
be made with ground glass
connectors. Glass butt-to-butt
connections may also be made
using tygon tubing.
CAUTION
Avoid use of tygon tubing except
as connectors.
Connect input tube of first
absorber ( 13 ) to a manifold
outlet (14 ).
Connect input tube of second
absorber ( I I ) to output tube
of first absorber ( !2 ).
Connect • input tube of glass
wool trap ( 9 ) to output tube
of second absorber (10 ).
Connect output tube of glass
wool trap ( 8 ) to bottom inlet
of flowmeter ( 6 ).
NOTE
Be sure flowmeter is mounted
vertically.
Connect top outlet of flowmeter
( 17 ) to inlet of needle valve
( 3 ).
TO OZONE MONITOR
11
10
4-4
-------
Section 4 - Calibration
Connect outlet of needle valve
(4) to inlet of air pump (2).
CAUTION
Check that all connections are
tight before proceeding.
NOTE
12. Pipette 10 ml of absorbing
reagent into each absorber.
NOTE
Do not proceed untiI
spectrophotometer is stabilized
and ready to operate.
10.
An air pump capable of main-
taining a 10,000 cc/min flow
can be substituted for the air
cylinder In the following steps,
Tur;n valve on air eye Under (I)
fully counterclockwise.
Adjust air cylinder regulator
(19) to obtain an Indication
of 10,000 cc/min on the air
supply flowmeter (18).
NOTE
Set External Ozone Generator
ON/OFF switch (15) to ON.
Set ExternaI Ozone Generator
scale (16) at 30 mm.
Wait 10 minutes before pro-
ceed i ng.
13- Set vacuum pump ON/OFF switch
to ON.
14. Quickly adjust needle valve (5) to
get an indication of 1000 cc/min
flow rate on the sample train
flowmeter (7).
NOTE
Flowmeter cannot be read directly.
A calibration curve is required
to obtain actual flow rate.
14A. Connect sampling train to the
manifold and start timing. After
10 minutes disconnect the sampling
trains from the manifold and stop
the vacuum pump.
15- Fill a 1 cm spectrophotometer
cell (20) from the remaining
absorbing reagent.
-------
Section 4 Calibrat ion
16. Place the cell in the
spectrophotometer and zero the
instrument following
manufacturer's instructions.
17. Empty the cell, rinse in
distilled water, and dry using
a soft lint-free cloth.
18. Set air pump ON/OFF switch
to OFF after exactly 10
minutes.
19. Transfer absorbing reagent from
absorber (I) into a clean I cm
spectrophotometer cell (5).
20. Transfer absorbing reagent from
absorber (2) into a clean I cm
spectrophotometer cell (5).
21. Measure the absorbances of each
cell using the spectrophotometer
according to manufacturer's
instructions.
22. Add the two absorbance readings.
23. Record the sum of the two
absorbance readings.
4-6
-------
Section 4 - Calibration
24
25
26.
Empty the cells,
distilled water,
a soft lint-free
rinse In
and dry using
cloth.
27.
28
Rinse the absorbers in
distilled water and shake out
excess water.
Determine the ozone
concentration corresponding
to the absorbance sum, using
the conversion table or chart
suppl ied .
Determine the ozone
concentration corresponding
to the external ozone
generator scale (4)
setting, using the external
ozone generator calibration
curve.
Compare the two ozone
concentration values. If the •
sample value differs more than
5% from the ozone generator
value repeat steps 12 through 26.
26. If the difference is still
more than 5%, report to your
supervisor and request a
primary calibration.
29. Set the external ozone generator
scale (4) to 60 mm.
30. Wait 10 minutes before proceeding.
31. Pipette 10 ml of absorbing reagent
into each absorber.
NOTE
The following steps require exact
timing. Start and stop timer and
air pump at the same tlrr.e.
32. Set vacuum pump ON/OFF switch to
ON and begin timing.
33. Set vacuum pump ON/OFF switch to
OFF after exactly 10 minutes.
34. Transfer absorbing reagent from
absorber (3) into a clean I cm
spectrophotometer cell (5).
35. Transfer absorbing reagent from
absorber (2) into a clean I cm
spectrophotometer eel I (5).
4-7
-------
Section 4 - Calibration
36. Measure the absorbances of each
cell using the spectrophotometer
according to manufacturer's
instructions.
37. Add the two absorbance readings
38. Record the sum of the two
absorbance readings.
39. Determine the ozone con-
centration corresponding to
the absorbance sum, using the
conversion table or chart
supplied.
40. Determine the ozone
concentration corresponding
to the external ozone
generator scale (I)
setting, using the external
ozone generator calibration
curve.
41. Compare the two ozone
concentration values. If the
sample value differs more than
5% from the ozone generator
value, repeat steps 30 through
38. If the difference is still
more than 5%, report to your
supervisor and request a
primary calibration.
42. Disassemble sampling train;
rinse glassware in distilled
water, dry, and store.
43. Shut down spectrophotometer
according to manufacturer's
i nstructions.
END OF ACTIVITY
4-8
-------
Section 4 Calibration
CALIBRATE THE OZONE MONITOR USING
THE EXTERNAL OZONE GENERATOR
(SECONDARY CALIBRATION)
INPUT CONDITIONS
Introduction
This activity describes the
procedure for calibrating the
Ozone Monitor using the External
Ozone Generator. The procedure
also establishes the reference
reading of the Internal Ozone
Generator for use in making
span checks.
ApplI cable Mods;
All
Special Tools and Test Equipment
One Bubblemeter Kit
One Stopwatch
One Support Stand
One UtilIty Clamp
Supplies:
Liquid Leak Detector Solution
Calibration Data Log
Flowmeter Calibration Curve
Supplled Data Sheet
External Ozone Generator
CalI brat I on Curve
Ozone Monitor Calibration Curve
Equipment Conditions:
Primary Calibration performed,
and External Ozone Generator
and Ozone Monitor Calibration
Curves prepared. If not, refer
to page 8-15.
Start Up performed. Refer to
page 3-1.
Check of the External Ozone Generator
performed. Refer to page 4-3.
Ethylene cylinder pressure 50 psi
or more.
Air cylinder pressure 100 psi or
more.
Strip chart recorder connected
to Monitor and adjusted
according to manufacturer's
instructions.
Personnel Required;
One Technician
4-9
-------
Section 4 CaIibrat ion
Rotate ethylene pressure
regulating control ( 2 )
countercIockw i se.
ful ly
2. Rotate air pressure regulating
control ( 5 ) ful ly
counterclockwise.
3. Rotate ethylene cylinder valve
( 4 ) counterclockwise until
cylinder gauge ( 3 ) indicates
pressure.
4. Rotate air cylinder valve ( I )
counterclockwise until cylinder
gauge ( 6 ) indicates pressure.
5. Rotate ethylene pressure
regulating control ( 2 )
clockwise until output gauge
ind icates 30 ps i.
6. Adjust ethylene pressure
regulator ( 9 ) to pressure
specified on Supplied Data
Sheet.
NOTE
When calibrating MOD A, adjust
regulator on Ethylene Flow Box tc
pressure specified on Supplied
Data Sheet.
NOTE
Before mounting bubblemeter,
rinse inside of tube with Liquid
Leak Detector or a soapy solution,
4-!0
-------
Section 4 - Calibration
Mount bubblemeter (12) in vertical
position. Add Liquid Leak Detector
until solution level reaches Input
tube (10).
Connect bubblemeter tubing (13)
to diverter valve (7).
NOTE
MOD A diverter valve is located
on Ethylene Flow Box.
Pull diverter valve (7) outward.
Momentarily depress rubber bulb
(II) on bubblemeter until bubble
forms inside tube and start
timer when bubble reaches 0 on
bubblemeter scale.
After exactly I minute, read
the height reached by the
bubble in ml on the bubblemeter
scale.
14,
Compare the bubblemeter flow
rate reading against flow
rate specified on the Data
Sheet.
NOTE
If the bubblemeter flow rate
is not as specified, Increase
or decrease ethylene pressure
as required using the ethylene
pressure regulation control (9).
Repeat steps 9 through 13
until measured flow is as
specified on the Data Sheet.
Record ethylene pressure (8)
on the Calibration Data Log.
Disconnect bubblemeter (12)
from dtverter valve (7).
Clean and store bubblemeter.
Depress
t imer.
diverter valve and stop
4-1 I
-------
Section 4 Calibrat Ion
16. Connect SAMPLE INLET tubing (3)
to manifold (4).
NOTE
If SAMPLE INLET is connected to.
a selector valve, set valve to
permit flow from the External
Ozone Generator System.
17. Rotate air regulating control
clockwise (I) until output
pressure gauge (6) indicates
15 psi.
NOTE
If a laboratory air pump is
used for calibration, set
pump power switch to on.
18. Rotate needle valve control (2)
until flowmeter (5) indicates
10,000 cc/min flow rate.
19. Adjust SAMPLE PLUS ETHYLENE
flowmeter (9) to value
specified on Supplied Data
Sheet.
NOTE
Flow rate cannot be read directly
from flowmeter. A flowmeter
calibration data sheet is
necessary to determine correct
flowmeter setting.
20. Set Ozone Generator sleeve (13)
to 0.
21. Set FULL SCALE RANGE SELECTOR
switch (II) to .01.
22. Wait 10 minutes before proceeding,
23. Unlock ZERO ADJUST control (7).
Adjust ZERO ADJUST control until
03 CONCENTRATION meter (10)
indicates 0. Lock ZERO ADJUST
control (7).
24. Record ZERO ADJUST setting on
Calibration Data Log.
4-12
-------
Section 4 Calibration
25. Check that the chart recorder
trace is 5% of the chart width
above the chart zero or base I ine.
If not, adjust chart recorder
according to manufacturer's
instructions.
26. Set FULL SCALE RANGE SELECTOR
swith (II) to .5.
27. Set External Ozone Generator
switch (12) to ON. Allow
generator 15 minutes to
stabiIIze.
NOTE
The External Ozone Generator
Calibration Curve is necessary
to complete calibration of the
Ozone Monitor.
28. Using the ozone generator
calI brat 5on curve, set the
external ozone generator sleeve
(13) for an output of exactly
0.4 ppm.
29. Wait 10 minutes before proceeding.
30. Unlock CALIBRATE ADJUST control
(8). Adjust CALIBRATE ADJUST
control until 03 CONCENTRATION
meter (10) indicates exactly
0.4 ppm. Lock CALIBRATE ADJUST
control (8).
31. Record External Ozone Generator
sleeve setting, ozone
concentration from Ozone
Generator Calibrat ion-Curve,
and 03 CONCENTRATION meter
indication on Calibration Data
Log.
10
13
12
4-13
-------
Section 4 Calibration
32.
33,
34,
35.
36.
37.
38.
Record CALIBRATE ADJUST setting
on Calibration Data Log.
Check that strip chart recorder
indicates exactly 85% of full
chart deflection. If not,
check out the recorder according
to manufacturer's instructions.
Using the ozone generator
calibration curve, set the
external ozone generator sleeve
(5) for an output of exactly
0.2 ppm.
Wait 10 minutes before
proceeding.
Record External Ozone Generator
sleeve setting, ozone con-
centration from Ozone Generator
Calibration Curve, and 03
CONCENTRATION meter indication
on Calibration Data Log.
Determine the difference between
the ozone concentration value
read from the 03 CONCENTRATION
Divide this
0.2 and mui tiply
100. This is the
the
39. Check that strip chart recorder
indicates exactly 45/6 of full
chart deflection. If not,
check out the recorder according
to manufacturer's instructions.
40. Using the ozone generator
cal i brat ion curve, set the
external ozone generator sleeve
(5) for an output of exactly
O.I ppm.
41. Wait 10 minutes before proceeding.
42
meter and 0.2.
difference by
the answer by
percent difference between
two values.
44.
45.
Record
value i
Log.
the percent difference
n the Calibration Data
46.
:im*ATi
A "T" ©
/r^\ f^ ^—
^J/ ( ) OM.IIKATI
^-^ AOAIST
Record External Ozone Generator
sleeve setting, ozone concentration
from Ozone Generator Calibration
Curve, and 03 CONCENTRATION meter
indication on Calibration Data Log.
Determine the difference between
the ozone concentration value
read from the 03 CONCENTRATION
meter and 0.1. Divide this
difference by 0.1 and multiply
the answer by 100. This is the
percent difference between the
two values.
Record the percent difference value
in the Calibration Data Log.
Check that strip chart recorder
indicates exactly 25% of full chart
deflection. If not, check out the
recorder according to manufacturer's
instructions.
Using the ozone generator
calibration curve, set the
external ozone generator sleeve
(5) for an output of exactly
0.05 ppm.
Wait 10 minutes before proceeding.
nut
If HQ CONSTANT
ADJUST «LICTO"
4-14.
-------
Section 4 Calibration
48. Record External Ozone Generator
sleeve setting, ozone
concentration from Ozone
Generator Calibration Curve,
and 03 CONCENTRATION meter
indication on Calibration Data
Log.
49. Determine the difference between
the ozone concentration value
read from the 03 CONCENTRATION
meter and 0.05. Divide the
difference by 0.05 and multiply
the answer by 100. This is the
percent difference between the
two values.
50. Record the percent difference
value in the Calibration Data
Log.
51. Check that strip chart recorder
indicates exactly 15^ of full
chart deflection. If not,
check out the recorder accord-
ing to manufacturer's in-
structions.
52. Check that all percent dif-
ference values are less than
14*.
NOTE
If any percent difference value
is not within tolerance, reset
the external ozone generator to
the proper ozone output and repeat
the check. If the percent
difference value is still out of
tolerance, refer to Troubleshoot
the Ozone Monitor, page 6-2.
53. Check that all calibration data
has been recorded on Calibration
Data Log.
5^. Set MODE SELECTOR switch (1)
to CALIBRATE.
55. Set CULL SCALE RANGE SELECTOR
switch (4) to .5.
56. Set TIME CONSTANT SELECTOR
switch (2) to 10 SEC.
57. Wait 15 minutes for monitor to
stabiIi ze.
58. Check that 03 CONCENTRATION meter
(3) indicates between 30$ and 38%
of meter scale. If not, go to
adjust the Internal Ozone
Generator, page 1-21.
59. Record 03 CONCENTRATION meter
indication on Calibration Data
Log.
'•JOTE
The value recorded in this step
is the New Span Check Value to
be used when performing the check
the Ozone '-1onitor Zero ^nd Span
Values task, page 4-| .
END OF ACTIVITY
4-I5
-------
SECTION 5. PREVENTIVE MAINTENANCE
INSPECT AND SERVICE CALIBRATION
SAMPLE FILTER
INPUT CONDITIONS
Introduction
The activated charcoal/si I lea
gel Calibration Sample Filter
should be inspected monthly
and serviced as necessary,
using the following procedure.
Applicable Mods:
All
Special Tools and Test Equipment;
None
Supplies:
Calibration Sample Filter
Personnel Required:
One Technician
Equipment Conditions:
Ozone Monitor installed and
operating.
NOTE
Calibration Sample Filter should
be replaced when silica gel
turns pink.
NOTE
Calibration Sample Filter life
normally is three months.
Filter life may vary according
to local conditions.
NOTE
Some MOD A Monitors utiIize
three filter elements. When
silica gel turns pink, replace
all three filter elements.
NOTE
After removal, the Calibration
SAMPLE filter should be cleaned
and repacked by a qualified
chemical technician. The filter
may then be reused.
5-1
-------
Section 5 Preventive Maintenance
I. Check that silica gel ( ' ) in
Calibration Sample Filter ( 2 )
is pink. If not, filter does
not require servicing. Stop
here.
NOTE
Calibration Sample Filter is
replaced when silica gel turns
pink.
2. Set POWER switch ( 3 ) to off.
CAUTION
If monitor must be moved to
gain access to filter, avoid
unnecessary strain on tubing
and connections.
Disconnect tubing ( 4 ) from
bottom cf fiIter ( 5 ).
Remove ivvo screws ( 6 ).
NOTE
Some MOD A monitors utiIize
3 filter elements. When silica
gel turns pink, replace all 3
f iIter elenentb.
Remove f iIter ( 7 ).
!TMTI(Nt
I
CAUgR'M
zio
UBJENT
FULLSCALt MOO*
RAWGI MIICTO" StltCTO"
vg)
5-2
-------
Section 5 - Preventive Maintenance
6. InstalI new fIIter ( 2 ).
7. Reinstall two screws ( 6 ).
8. Reconnect tubing (4 ) to
bottom of fiIter ( 5 ).
NOTE
If monitor was moved to change
filter, carefully reposition
monitor at this time.
9. Set POWER switch (3 ) to ON.
10. Check output of Internal Ozone
Generator. Refer to Check the
Ozone Monitor Zero and Span
Values, page 4-1.
END OF ACTIVITY
5-3
-------
Section 5 - Preventive Maintenance
INSPECT AND SERVICE THE
SAMPLE FILTER
INPUT CONDITIONS
Introduction
The 5 micron teflon Sample Filter
should be inspected every two
weeks and replaced as necessary,
using the procedure described in
this section.
Applicable Mods:
Al I
Special Tools and Test Equipment:
None
Supplies:
Teflon Filter Elements, 5 micron,
47 mm d iameter
Personnel Required;
One Technician
Equipment Conditions:
Ozone Monitor installed and
operating.
CAUTI ON
To avoid damage to fittings in
Monitor, teflon fittings should
be tightened finger tight.
NOTE
Sample Air Filter element life
normally is two weeks. Filter
life may vary according to local
cond it ions.
5-5
-------
Section 5 Preventive Maintenance
I. Set POWER switch (I ) to OFF.
NOTE
Some MOD A monitors have sample
filter located inside the chassis.
To service filter, remove four
screws and top cover.
2. Disconnect inlet tubing ( 2 ) from
f iIter IN f i tt i ng ( 4 ).
3. -Disconnect outlet tubing ( 2 )
from fiIter outlet ( 5 ).
4. Loosen wing-nuts ( 3 ) and remove
frame ( 6 ).
5. Pull filter assembly ( 9 ) apart.
6. Remove filter element ( 8 ).
NOTE
Filter element life normally is
two weeks. Filter life may vary
according to local conditions.
Replace elements as required.
7. Install filter element ( 8 ).
8. Reassemble filter assembly ( 9 )
9. Install frame (10 ) on filter
assembIy ( 9 ).
10. Tighten wing-nuts ( 7 ).
-------
Section 5 - Preventive Maintenance
II. Connect output side of filter
( 5 ) to outlet tubing ( 2 ).
NOTE
Output side of sample filter
is not marked.
12. Connect sample inlet tubing
( 2 ) to fiI ten IN fitting
( 4 ).
13. If servicing MOD A monitor,
reinstall top cover and secure
with screws.
14. Set POWER switch ( I ) tc ON.
15. Recheck calibration. Refer to
Check the Ozone Monitor Zero
and Span Values, page 4-1.
END OF ACTIVITY
-------
DIRECTIONS FOR TROUBLESHOOTING
SECTION 6. TROUBLESHOOTING
The Checkout and Troubleshooting
procedures for the Ozone Monitor
are combined into a single step-by-
step sequence, beginning on the next
page. The sequence is basically a
series of tests which systematically
locate the faulty part(s). In order
to be sure that you have located
everythIng that might be wrong,
always start at Step I of sequence
and perform the steps in order.
Each test you make helps narrow
the list of things that might be
causing the malfunction and deter-
mines what will be the next step in
the sequence.
It's important to remember that:
I . If a step does not
require a test or de-
cision, perform the step
and then go on to the
next step.
2. If a step requires a
test or decision whose
outcome is either good
or bad, the correct
next step naturally
depends on the outcome.
Consider the statement,
"Check that POWER Iight
is I it. If not, go to
Step 6."
(a) If the test outcome
is good (in the example,
if the POWER light is
lit), go on to the
next step.
(b) If the test outcome
is bad, the correct
next step is given as
a reference. In the
example, if the Iight
was not lit, you would
be expected to skip to
Step 6.
Cross-referencing is accomplished
using both step and page numbers.
References to other steps in the
Troubleshooting Section use only
step number, e.g., Step 6.
References to other sections of
the book use section number and
page number; "Go to 3-12" means
Section 3, Page 12.
When you encounter a step re-
quiring you to replace a part,
perform the replacement, and then
g_o to the next step |_n_ the Trouble-
shooting sequence. You will
eventually be directed "Go to
Step I." This means that the
trouble has been found and corrected
and now you must check to be sure
the monitor is operating properly.
The troubleshooting job is not
finished until the procedure leads
you to the statement that reads
"END OF CHECKOUT."
6-1
-------
Section 6 - Troubleshooting
TROUBLESHOOT THE OZONE MONITOR
I. Disconnect AC power from
mon i tor.
2. If you are servicing a
MCD-C monitor, go to step
4. If not, go to next
step.
3. Remove top and bottom
covers (5) and (6) from
monitor. Go to step 5.
4. Remove top cover (8) and
remove monitor chassis from
bottom cover (7).
5. Set the POWER switch to
OFF.
6. Connect AC power to
moni tor.
7. Check that POWER Indicator
( I ) Is not lit. If lit, go
to step 127.
8. Set MODE SELECTOR (2) to
AMBIENT.
9. Set FULL SCALE RANGE
SELECTOR (4) to I.
10. Set TIME CONSTANT SELECTOR
(3) to 10 SEC.
II. Set the POWER switch to
ON.
6-2
-------
Section 6 - Troubleshooting
12. Check that POWER Indicator
( I ) is lit. If not, go to
step 134.
13. Check that fan (9) or (10)
is rotating. If not, go
to step 1059.
14. Set the POWER switch to
CFF.
15. Disconnect AC power from
monI tor.
16. Position monitor chassis
on r i ght si de .
17.
18
NOTE
For the checks performed
instep I7throughstep 25,AC
power must have been
disconnected from monitor
for a mini mum of I 5
minutes. Also monitor and
ambient air must be at a
temperature between.75 and
80 degrees.
If you are servicing a
MOD-C monitor, go to step
20. If not, go to next
step .
Use VOM to measure VDC.
Connect positive test lead
to term!nal (II), common
test lead to chassis
ground.
e-3
-------
Section 6 - Troubleshooting
19. Go to step 21.
20. Use VCM to measure VDC.
Connect positive test lead
to terminal (2), common
test lead to chassis
ground.
21. Connect AC power to
mon i tor.
NOTE
The next 4 steps require
timing, begin timing when
POWER s_witch is set to ON.
22. While observing VOM, set
the POWER swith to ON and
check that VOM initial ly
indicates between 2.0 and
4.0 VDC. If not, go to
step 433.
23. Check that VOM indication
begins an abrubt decrease
In 1.5 to 3.5 mlnutes. I f
not, go to step 585.
24. Check that VOV indication
stab i I i zes wi thi n 15
minutes. If not, go to
step 638.
25. Check that VOM indicates
between .75 and 1.5 VDC.
If not, go to step 655.
26. Set the POWER switch to
OFF.
27. Disconnect AC power from
mon i tor.
28. Position monitor chassis
in normal operating
pos i 11 on .
29. Connect Ethylene supply
I i ne to ETHYLENE INLET ( I )
or (4).
6-4
-------
Section 6 - Troubleshooting
30. Connect AC power to
moni tor.
31. Set the POWER switch to
ON.
NOTE
Calibration apparatus must
be properly configured to
continue with checkout.
Perform Install the Ozone
Monitor beginning with
step 23 and continuing
through step 35. When
calibratiion train is
properly configured, go on
to foI Iow i ng note.
NOTE
To properly adjust
equipment for continuation
of checkout, perform
CaI Ibrate'the Ozcne
Monitor using the EXTERNAL
03 GENERATOR, beginning
with step I and continuing
through step 19. 'When
completed, go on to step
32. If any step I n
calibrate procedure cannot
be successfully performed,
record that step number
and refer to table (5) for
reference to appropriate
troubleshooting procedure.
32.
Set MODE
ZFRO.
SELECTOR (3) to
Calibration
step failed
6
11
13
19
Refer to step
672
786
1078
1123
t
OZONE MONITOR
t-5
-------
Section 6'- Troubleshooting
33.
34
35
36,
37.
If you are servicing a
MOD-A or B monitor, go to
step 36. If not, go to
next step.
Check that ZERO
(4) Is I it. If
step 795.
I nd I cator
not, go to
Check that CALIBRATE
indicator (I) is not I it
If lit, go to step 812.
Usi ng "03 ANALYZER DAILY
CHECK SHEET," determine
last known ZERO setting
and set ZERO ADJUST
micrometer (5) or (3) to
that setting.
Check that 03
CONCENTRATION meter (7)
i nd i cates 0 w i thi n I
minute. If not, go to
step 1338.
38.
39.
40.
4 I
42.
43.
Set FULL
SELECTOR
SCALE RANGE
(8) to .5.
Check that 03
CONCENTRATION meter (7)
Indicates 0 within 30
secOnds. If not, go to
step 1834.
Set FULL SCALE RANGE
SELECTOR (8) to .2.
Check that 03
CONCENTRATION meter (7)
I nd I cates 0 wi thIn 30
seconds. If not, go to
step 1840.
Set FULL SCALE RANGE
SELECTOR (8) to .I.
Check that 03
CONCENTRATION meter (7)
Indicates 0 plus or minus
I percent within 30
seconds. If not, go to
step 1842.
6-6
-------
Section 6 - Troubleshooting
44. Set FULL SCALE RANGE
SELECTOR (8) to .05.
45. Check that 03
CONCENTRATION meter (7)
indicates 0 plus or minus
2 percent within 30
seconds. If not, go to
step 1844.
46. Set FULL SCALE RANGE
SELECTOR (8) to .02.
47. Check that 03
CONCENTRATION meter (7)
indicates 0 plus or minus
5 percent within 30
seconds. If not, go to
step 1846.
48. Set FULL SCALE RANGE
SELECTOR (8) to .01.
49. Check that 03
CONCENTRATION meter (7)
indicates 0 plus or minus
10 percent within 30
seconds. If not, oo to
step 1848.
50. Set FULL SCALE RANGE
SELECTOR (8) to I.
51. Set MODE SELECTOR (9) to
AMBIENT.
52.
If you are servicing a
MOD-A or E monitor, go to
step 55. If not, go to
next step.
53,
54
55.
Check that ZERO
(4) Is not I It.
go to step 1035
i ndIcator
If lit.
Check that CALIBRATE
i ndicator (I ) is not I it.
If lit, go to step 1047.
Using "03 ANALYZER DAILY
CHECK SHEET," determine
last known CALIBRATE
setting and set CALIBRATE
ADJUST micrometer (6) or
(2) to that setting.
6-7
-------
Section 6 - Troubleshooting
NOTE
The External 03 qenerator scale
is graduated both in millimeters
and centimeters. When setting
the sleeve use the smaller
millimeter graduations.
56. If you are servicing a
MOD-A or B monitor, go to
step 79. I f not, go to
next step.
57. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE , .de term i ne generator
sleeve setting that will
produce .08 PPK1 03
concentration. Set
generator sleeve ( I ) to
th i s sett i ng.
NOTE
When reading 03
concentration meter on
MOD-C monitor, use top
sea I e.
58. When 03 CONCENTRATION
meter (2) i nd i cat ion
stab i I izes, check that
meter indicates between
.07 and .09. I f not, go to
step 2371.
59. Set FULL SCALE RANGE
SELECTOR (3) to .5.
60. When 03 CONCENTRATION
meter (2) Ind i cat Ion
stabilizes, check that
meter indicates between
. 14 and .18. If not, go to
step 1888.
61 . Set FULL SCALE RANGE
SELECTOR (3) to .2.
62. When 03 CONCENTRATION
meter (2) I ndI cat ion
stabilizes, check that
meter indicates between
.35 and .45. If not, go to
step 1945.
63. Set FULL SCALE RANGE
SELECTOR (3) to .I.
64. When 03 CONCENTRATION
meter (2) i ndI cat Ion
stabilizes, check that
meter indicates between .7
and .9. If not, go to step
2006.
6-8
-------
Section 6 - Troubleshooting
65. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine generator
sleeve setting that will
produce .008 PPM 03
concentration. Set
generator sleeve (I) to
th i s sett Ing.
66. Set FULL SCALE RANGE
SELECTOR (3) to .05.
67. When 03 CONCENTRATION
meter (2) indication
stabiIi zes, check that
meter indicates between
.14 and .18. If not, go to
step 2073.
68. Set FULL SCALE RANGE
SELECTOR (3) to .02.
69. When 03 CONCENTRATION
meter (2 ) Ind icat I on
stabilizes, check that
meter indicates between
.35 and .45. If not, go to
step 2146.
70. Set FULL SCALE RANGE
SELECTOR (3) to .01.
71. When 03 CONCENTRATION
meter (2) Indication
stabilizes, check that
meter Indicates between .7
and .9. If not, go to step
2223.
72. Set FULL SCALE RANGE
SELECTOR (3) to .02.
NOTE
The next step requires
timing the rate of fall of
meter needle. Begin
timing when MODE SELECTOR
is set to ZERO, and stop
timing when needle falls
below .2.
73. Set MODE SELECTOR (4) to
ZERO and check that 03
CONCENTRATION meter needle
falls be low .2 wlthi n 7 to
13 seconds. If not, go to
step 821 .
.n.l.0,,0.
u
©
u
o
6-9
-------
Section 6 - Troubleshooting
74
Set TIME CONSTANT SELECTOR
(3) to I SEC.
NOTE
The next step requires
timing the rate of rise of
meter needle. Begin
timing when MODE SELECTOR
is set to AMBIENT, and
stop timing when needle
rises above .3.
Set MODE SELECTOR (2) to
AMBIENT and check that 03
CONCENTRATION ir.eter needle
rises above .3 within 3 to
7 seconds. If not, go to
step 894.
76,
Set TIME CONSTANT
(3) to 4C SEC.
SELECTOR
NOTE
The next step recuires
Aiming the rate cf falI of
meter needle. Begin
timing when MODE SELECTOR
is set to ZERO, and stop
timing when needle falls
below .2.
77. Set WCDE SELECTOR (2) to
ZERO and check that 03
CONCENTRATION meter needle
falls be low .2 wi thi n 25
to 45 seconds. If not, go
to step 908.
78. Co to steo 100.
79. Us!nc EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine generator
sleeve setting that will
produce .08 P^V 03
concentration. Set
generator sleeve (I) to
this setting.
6-10
-------
Section 6 - Troubleshooting
80. When 03 CONCENTRATION
meter (4) Indication
stabilizes, check that
meter Indicates between 7
and 9. If not, go to step
2264.
81 . Set FULL SCALE RANGE
SELECTOR (5) to .5.
82. When 03 CONCENTRATION
meter (4) Indication
stabilizes, check that
meter Indicates between 14
and 18. If not, go to step
1862.
83. Set FULL SCALE RANGE
SELECTOR (5) to .2.
84. When 03 CONCENTRATION
meter (4) Indication
stabilizes, check that
meter Indicates between 35
and 45. If not, go to step
1917.
85. Set FULL SCALE RANGE
SELECTOR (5) to .I.
86. When 03 CONCENTRATION
meter (4) Indication
stabilizes, check that
meter Indicates between 70
antf 90. If not, go to step
1976.
87. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine generator
sleeve setting that will
produce .008 PPM 03
concentration. Set
generator sleeve (I) to
this setting.
88. Set FULL SCALE RANGE
SELECTOR (5) to .05.
89. When 03 CONCENTRATION
meter (4) Indication
stabilizes, check that
meter Indicates between 14
and 18. If not, go to step
2039.
90. Set FULL SCALE RANGE
.SELECTOR (5) to .02.
*1 I
-------
Section 6 - Troubleshooting
91. When 03 CONCENTRATION
meter (3) Indication
stabilizes, check that
meter indicates between 35
and 45. If not, go to step
21 10.
92. Set FULL SCALE RANGE
SELECTOR (4) to .01.
93. When 03 CONCENTRATION
meter (3) Indication
stabilizes, check that
meter indicates between 70
and 90. If not, go to step
2185..
94. Set FULL SCALE RANGE
SELECTOR (4) to .02.
NOTE
The next step requires
timing the rate of falI of
meter needle. Begin
timing when MODE SELECTOR
is set to ZERO, and stop
timing when needle falls
below 20.
95. Set MODE SELECTOR < I 5 to
ZERO and check that 03
CONCENTRATION meter needle
fa I I s be low 2 within 10 to
15 seconds. If not, go to
step 82 I.
96. Set TIME CONSTANT SELECTOR
(2) to I SEC.
NOTE
The next step requires
timing the rate of rise or
meter needle. Begin
timing when MODE SELECTOR
is set to AMBIENT, and
stop timing when needle
rises above 30.
97. Set MODE SELECTOR (I) to
AMBIENT and check that 03
CONCENTRATION meter needle
rises above 30 within 2 to
5 seconds. If ncT, go to
step 894.
"T£
' ^-
6-12
-------
Section 6 - Troubleshooting
98. Set TIME CONSTANT SELECTOR
(2) to 40 SEC.
NOTE
The next step requires
timing the rate of fall of
meter needle. Begin
timing when MODE SELECTOR
is set to ZERO, and stop
timing when needle falls
below 20.
99. Set MODE SELECTOR (I) to
ZERO and check that 03
CONCENTRATION meter needle
falls be low 20 wlthIn 30
to 50 seconds. If not, go
to step 908.
100. Set TIME CONSTANT
SELECTOR (2) to 10 SEC.
101. Set FULL SCALE RANGE
SELECTOR (4) to I.
102.
103.
104.
105.
106.
Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08 PPM
03 concentration. Set
generator sleeve (5) to
thIs sett Ing.
Set MODE SELECTOR
CALIBRATE.
( I ) to
I f you are
MOD-A or B
step 107.
next step.
serv i cIng a
mon i tor, go to
If not, go to
Check that CALIBRATE
I ndi cator (6) Is lit.
not, go to step 915.
I f
Check that ZERO
(7) is not I It.
go to step 932.
ndIcator
If lit,
6-1
-------
Section 6 - Troubleshooting
107.
08.
109.
10,
Using "03 ANALYZER DAILY
CHECK SHEET," determine
and record last known
internal 03 generator
SPAN reading. Set FULL
SCALE RANGE SELECTOR to_
proper scale to make this
read i ng.
Check that 03
CONCENTRATION meter
i nd icates wi th i n 5
d iv is ions of read!ng
detemined in step 107. If
not, go to step 1214.
III
I f you are
KOD-A or B
step. I 16.
next step.
serv i c i ng a
mon i tor , go to
If not, go to
Check that strip chart
recorder indication
corresponds to 03
CONCENTRATION meter
indication. If not, go to
step 1305.
12.
I 13.
I 14.
I 15.
Connect
between
TB2 COM
a jumper
TB2 ZERO
( I ).
wire
(3) and
Check that 03
CONCENTRATION meter (4)
ind icates 0 with! n one
ml nute. I f not, go to
step 94 I .
Remove jumper wire from
TB2 ZERO (3) and connect
it to TB2 RANGE (2).
Check that 03
CONCENTRATION meter
indicates within 5
dl vi slons of read I ng
detemi ned In step 107. If
not, go to step 988.
Remove jumper
TB2 RANGE (2)
( I ).
wi re f rom
and TB2 COM
O
0
O
"o*
e-14
-------
Section 6 - Troubleshooting
I 16. Set FULL SCALE RANGE
SELECTOR (5) to I.
117. Set the POWER switch to
OFF.
118. Disconnect AC power from
monI tor.
119. Set external ozone
generator power switch
(6) off.
120. Rotate ETHYLENE tank
valve fully clockwise.
121. Rotate AIR tank valve
fully clockwlse.
122. Disconnect Ethylene Line
from ETHYLEN.E INLET (7).
123. Disconnect Sample Line
from SAMPLE INLET (8).
124. Disconnect Exhaust Line
from EXHAUST (9).
125. Reinstall top and bottom
covers on monitor.
126. END OF CHECKOUT.
OZONE MONITOR
03 OMCEMTNATION
o
PULL TO
TKI PLUS
I ETHYUNt
o
Co) Co)
CALIIMATf
AOJUTT
FULL SCALC UOOi
•AMGt SCLICTOn SCLfCTOft
me | mac
nuf I
CONSTANT rowt*
SILfCTO*
6-15
-------
Section 6 - Troubleshooting
127. Disconnect AC power from
monI tor.
128. Set the POWER switch to
OFF.
129. Use VOM to measure OHMS.
Connect positive test
lead to term i naI (4 ),
common test lead to
term InaI (3).
130. Check that VOM Indicates
IOOK ohms or more. If
not, replace SWI (5). Go
to step 132.
134.
31 .
32.
33.
If you are servicing a
MOD C monitor, go to step
263. If not, go to next
step.
135.
136.
137.
Check that
operat ing.
step 143.
pump (8 )
I f not,
is
go
to
Disconnect AC power from
monI tor.
Position monitor chassis
on right side.
Repair or replace wiring
and connectors as
necessary.
Reconnect wire to switch.
Go to step I.
6-16
-------
Section 6 - Troubleshooting
138. Use VOM to measure OHMS.
Connect positive test
lead to DSI (7), common
test lead to TPI (9).
139. Check that VOM Indicates
5 ohms or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
140. Use VOM to measure OHMS.
Connect positive test
lead to DSI (6), common
test lead to TPI (9).
141. Check that VOM Indicates
5 ohms or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
142. Replace DSI (2). Go to
step I.
143. Disconnect AC power from
monI tor.
144. Remove fuse Fl (I).
145. Use VOM to measure OHMS.
Connect positive test
lead to fuse (II), common
test lead to fuse (10).
146. Check that VOM Indicates
5 ohms or less. If not,
go to step I 54.
147. RelnstalI fuse Fl.
11
6-17
-------
Section 6 - Troubleshooting
148. Position monitor chassis
on r ight side.
149. Use VOM to measure OHMS.
Connect positive test
lead to fuseholder (2),
common test lead to
fuseholder (3).
150. Check that VOM Indicates
5 ohms or less. If not,
replace fuseholder (I).
Go to step I .
151 .
152.
153.
154.
Use VOM to measure OHMS.
Connect positive test
lead to switch (6),
common test lead to
switch (4).
Check that VOM Indicates
5 ohms or less. If not,
rep I ace sw1tch SI (5).
Go to step I .
Repair or replace wiring
and connectors as
necessary. Go to step I,
D i sconnect w i re
DSI .
(8) from
J
6 5
e-i e
-------
Section 6 - Troubleshooting
155. Use VOM to measure OHMS.
Connect positive test
lead to OS I (8), common
test lead to OS I (7).
156. Check that VOM Indicates
IOOK ohms or more. If
• not, replace OS I (9). Go
to step 210.
157. Reconnect wire to DSI.
158. Check that pump/fan
armature (13) rotates
easily. If not, replace
pump/fan assembly, go to
step 210.
159. Tag and disconnect wiring
between Ethylene Solenoid
Valve (10) and pump/fan
assembly (I I).
160. Use VOM to measure OHMS.
Connect positive test
lead to black wire (14),
common test lead to black
wire (15).
161. Check that VOM Indicates
3 ohms or more. If not,
replace pump/fan assembly
(12). Go to step 210.
6-19
-------
Section 6 - Troubleshooting
162. Use VOM to measure OHMS.
Connect positive test
lead to solenoid wire
(12), common test lead to
so lenold wire (II).
163. Check that VOM Indicates
400 ohms or more. If
not, replace Ethylene
Solenoid Valve (13). Go
to step 210.
164. Reconnect wiring between
Ethylene Solenoid Valve
and pump/fan assembly.
165. Position monitor chassis
on right sIde.
166. Set MODE SELECTOR (14) to
AMBIENT.
167. Set power supply switch
(2) to OFF.
6-20
-------
Section 6 - Troubleshooting
68,
169,
I 70
171 .
172.
Use VOM to measure OHMS.
Connect positive test
Iead to termlnaI (7),
common test lead to
terminal (8).
Check that VOM Indicates
IOOK ohms or more. If
not, replace Constant
Voltage Regulator
Assembly (6). Go to step
210.
Use VOM to measure OHMS.
Connect positive test
lead to terminal (5),
common test lead to
termlnal (8).
Check that VOM Indicates
IOOK ohms. If not,
replace Constant Voltage
Regulator Assembly (6).
Go to step 210.
173.
174.
175.
176.
177.
Set power suppIy
(2) to ON.
switch
178.
O.'OM UONITOK
"•S
AM«l|NT I
1.1 v NOS1KAT • ••*« II
»UU KAll MOM
«AMCI UllCTO" Ml I ClOH
10 MC ll H
• Align A? I •1«u CONSTANT
AftJUST »nx^T WllCTOR
79.
Use VOM to measure OHMS.
Connect positive test
Iead to termlnal ( 5),
common test lead to
term!nal (8).
Check that VOM Indicates
25 ohms or more. If not,
go to step 213.
Disconnect lamp cord
from power suppIy.
(3)
Use VOM to measure OHMS.
Connect positive test
Iead to termlnal (10),
common test lead to
termlnaI (9).
Check that VOM Indicates
I OK ohms or more. If
not, replace UV Power
Supply (I). Go to step
210.
Use VOM
Connect
Iead to p i ug
test lead to
to measure OHMS
pos1tIve test
(15), common
plug (16).
Check that VOM Indicates
IOOK ohms or more. If
not, replace UV Lamp (4)
Go to step 210.
6-2 I
-------
Section 6 - Troubleshooting
180. Reconnect lamp cord to
power supply.
181. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
resistor lead (4).
182. Check that VOM indicates
between 21 and 23 ohms.
If not, replace RI9 (3).
Go to step 210.
183. Use VOM to measure OHMS.
Connect positive test
lead to J3-I (8), common
test lead to J3-1 3 (10).
184. Check that VOM indicates
20K ohms or more. If
not, go to'step 216.
185. Use VOM to measure OHMS.
Connect positive test
lead to J3-2 (9), common
test lead to J3-I3 (10).
186. Check that VOM Indicates
700 ohms or more. If
not, go to step 216.
6-22
-------
Section 6 - Troubleshooting
187. Remove Temp Control P.C.
Board (13).
188. Use VOM to measure OHMS.
Connect positive test
lead to P.C. Board pin 4
(II), common test lead to
P.C. Board pin I (12).
189. Check that VOM Indicates
I5K ohms or more. If
not, replace Temp Control
P.C. Board (13). Go to
step 210.
190. Reinstall Temp Control
P.C. Board.
191. Disconnect wire (2) from
02.
192. Use VOM to measure OHMS.
Connect positive test
Iead to termlnaI (I),
common test lead to
termlnaI (2).
193. Check that VOM Indicates
200K ohms or more. If
not, replace Q2 (14). Go
to step 210.
194. Reconnect wire to 02.
195. Use VOM to measure OHMS.
Connect positive test
lead to diode lead (5),
common test lead to diode
lead (6).
196. Check that VOM deflects
sharp Iy to 0, then
Increases to 500 ohms or
more. If not, go to step
236.
6-23
-------
Section 6 - Troubleshooting
197.
198.
199,
200.
201 .
202.
203.
Disconnect transformer
wire (I) from
TP4-termi na I .
Use VOM to measure OHMS.
Connect positive test
lead to transformer lead
(I), common test lead to
TP4 (2).
Check that VOM indicates
25 ohms or more. If not,
replace T2 (3). Go to
step 210.
Reconnect wire to TP4.
Disconnect transformer
wi re (9) from TP2
term i naI.
Use VOM to measure OHMS.
Connect positive test
lead to transformer lead
(9), common test lead to
TP2 terminal (8).
10
Check that VOM
6 ohms or more.
rep I ace TI ( 5).
step 210.
nd i cates
If not.
Go to
204. Reconnect wire to TP2.
205. Disconnect solenoid wire
(10) from TP2.
6-24
-------
Section 6 - Troubleshooting
206. Use VOM to measure OHMS.
Connect positive test
lead to solenoid lead
(10), common test lead to
TP2 terminal (7).
207. Check that VOM Indicates
85 ohms or more. If not,
replace Selector Solenoid
Valve (4). Go to step
210.
208. Reconnect solenoid lead
to TP2.
209. Repair or replace wiring
and connectors as
necessary. Go to step
210.
210. Position monitor chassis
In normal operating
pos It Ion.
211. Install new 2A-I25V fuse
In fuseholder (II).
212. Go to step I .
213. Use VOM to-measure OHMS.
Connect positive test
lead to TPI-2 (13),
common test lead to TPI-6
( 12).
214. Check that VOM Indicates
25 ohms or more. If not,
replace UV Lamp Power
Supply (6). Go to step
210.
215. Repair or replace wiring
and connectors as
necessary. Go to step
210.
11
12
6-25
-------
Section 6 - Troubleshooting
216. Remove 110 VDC Power
Supply P.C. Board (4).
217. Disconnect black wire
from TP2 (9).
218. Use VOM to measure OHMS.
Connect positive test
lead to TP2 (8), common
test lead to black wire
(9).
219. Check that VOM indicates
II ohms or more. If not,
replace Tl (5). Go to
step 210.
220. Disconnect diode lead
(II).from TP2.
221. Use VOM to measure OHMS.
Connect positive test
lead to TP2 terminal (9),
common test lead to TP2
terminal (10).
222. Check that VOM Indicates
IOOK ohms or more. If
not, replace CR2 (12).
Go to step 253.
223. Use VOM to measure OHMS.
Connect positive test
lead to TP2 terminal (9),
common test lead to diode
lead (II).
224. Check that VOM Indicates
IOOK ohms or more. If
not, rep lace CRI (13).
Go to step 253.
6-26
-------
Section 6 - Troubleshooting
225. Use VOM to measure OHMS.
Connect positive test
lead to TP2 terminal (8),
common test lead to TP2
termlnal (10).
226. Check that VOM deflects
sharp Iy to 0, then
Increases to IOOK ohms or
more. If not, replace C6
(7), go to step 253.
227. Use VOM to measure OHMS.
Connect positive test
lead to TP2 terminal
(10), common test lead to
TP2 termi nal (8).
228. Check that VOM deflects
sharply to 0, then
Increases to IOOK ohms or
more. If not, replace c7
(6), go to step 253.
229. Reconnect black wire to
TP2.
230,
231
Reconnect diode
TP2.
lead to
232,
233,
234
Use VOM to measure OHMS.
Connect positive test
lead to P.C. Board (3),
common test lead to P.C.
Board (I).
Check that VOM Indicates
I50K ohms or more. If
not, rep I ace I I 0 VDC
Power Supply P.C. Board
(4). Go to step 210.
Use VOM to measure OHMS.
Connect positive test
lead to P.C. Board (2),
common test lead to P.C.
Board (I).
Check that VOM Indicates
I50K ohms or more. If
not, rep I ace I I 0 VDC
Power Supply P.C. Board
(4). Go to step 210.
6-27
-------
Section 6 - Troubleshooting
235. Repair or replace wiring
and connectors as
necessary. Go to step
210.
236. Disconnect green wire
from TP4 terminal (4).
237. Use VOM to measure OHMS.
Connect positive test
lead to TP4 terminaI (7 ) ,
common test lead to green
wire (4 ).
238. Check that VOM Indicates
0.5 ohms or more. If
not, replace T2 (I). Co
to step 210.
239. Disconnect diode lead (7)
from TP4 term!naI.
12
240. Use VOM to measure OHMS.
Connect positive test
lead to TP4 terminal (3),
common test lead to diode
lead (7).
241. Check that VOM indicates
IOOK ohms or more. If
not, replace CR3 (6). Go
to step 259.
242. Disconnect diode lead (2)
from TP4.
243. Use VOM to measure OHMS.
Connect positive test
lead to TP4 terminal (3),
common test lead to diode
lead (2).
244. Check that VOM indicates
IOOK ohms or more. If
not, replace CR4 (5). Go
to step 259.
u u
6-28
-------
Section 6 - Troubleshooting
245. Reconnect diode leads to
TP4.
246. Disconnect wire (12) from
TP5 term!naI.
247. Use VOM to measure OHMS.
Connect positive test
l-ead tox-TP5 terminal
(12), common test lead to
TP4 terminal (9).
248. Check that VOM deflects
sharp Iy to 0, then
Increases to I OK ohms or
more. If not, replace C8
(10), go to step 210.
249. Use VOM to measure OHMS.
Connect positive test
lead to TP5 (13), common
test lead to TP4 (8).
250. Check that VOM deflects
sharp I y to 0, then
Increases to IOK ohms or
more. If not, replace C9
(II), go to step 210.
251. Reconnect wire to TP4.
252. Repair or replace wiring
and connectors as
necessary. Go to step
210.
253. Reconnect black wire to
TP2.
254. Reconnect diode lead to
TP2.
255. Reinstall NO VDC Power
Supply P.C. Board.
256. Position monitor chassis
I n normaI operatIng
posItIon.
257. Install new 2A-I25V fuse
In fuseholder (14).
258. Go to step I.
259. Reconnect diode leads to
TP4.
260. Position monitor chassis
In normaI operat1ng
posIt Ion.
261. Install new 2A-I25V fuse
I n fusehoIder (14).
6-29
-------
Section 6 - Troubleshooting
262. Go to step I.
263. Check that pump (I) Is
operating. If not, go to
step 272.
264. Disconnect AC power from
mon i tor.
265* Position monitor chassis
on rj ght side.
266. Disconnect wires from SI
(9).
267. Use VOM to measure OHMS.
Connect positive test
lead to DSI (II), common
test lead to wire end
(9).
268. Check that VOM indicates
5 ohms or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
269. Use VOM to measure OHMS.
Connect positive test
lead to DSI (12), common
test lead to SI (3).
270. Check that VOV Indicates
5 ohms or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
271. Replace DSI (13). Go to
step I .
272. Disconnect AC power from
mon i tor.
273. Remove fuse Fl (2).
274. Use VOM to measure OHMS.
Connect positive test
lead to fuse (15), common
test lead to fuse (14).
275. Check that VOM indicates
5 ohms or I ess. If not,
go to step 285.
O
©
O
6-30
-------
Section 6 - Troubleshooting
276. Rei nstal I fuse Fl .
277. Position monitor chassis
on right side.
278. Use VOM to measure OHMS.
Connect positive test
lead to fuseholder (5),
common test lead to
fusehoIder (6 ).
279. Check that VOW indicates
5 ohms or less. If not,
replace fuseholder (7).
Go to step I.
280.
281.
282.
Use VOW to measure OHMS.
Connect positive test
lead to switch (8),
common test lead to
switch (9).
Check that VOM indicates
ohms or less. If not,
SI (10)
rep I ace sw i tch
Go to step I
Use VOM to measure
Connect positive test
I ead to sw i tch ( 3 ) ,
common test lead to
sw i tch ( 4 ) .
283. Check that VOM indicates
5 ohms or less. I* not,
rep I ace sw i tch SI (10).
Go to step I .
14
e-3
-------
Section 6 - Troubleshooting
284. Repair or replace wiring
and connectors as
necessary. Go to step I,
285. Disconnect wire (5) from
OS I .
286. Use VOV to measure OHMS.
Connect positive test
lead to DS I (5), common
test lead to DSI (6).
287. Check that VOV indicates
IOOK ohms cr more. If
not, replace DSI (7). Go
to step 367.
6-32
-------
Section t - Trouciesf'retire
26fa. Reconnect wire to CS I .
289. Disconnect cooling fan
wire (I) from TPI_6.
290. Use VCM to measure OHMS.
Connect positive test
Iead to w i re end ( I ) ,
common test lead to
TPI8-4 (3).
291. Check that VOM indicates
25 ohms or more. If not,
replace Cooling Fan (8).
G.o to step 367.
292. Reconnect wire to TP I .
293. Disconnect pump wire f ronr,
TPI8-4 (3). 8
•94.
295.
29f .
297.
Use VC'' to Tcasure O'-'S.
Connect positive tes*
lead to TP"-!. C2>, .-.crrr
test lead *o wire enc
(3).
Check that VON' indic
3 ohms or nrore. IT roT ,
•-eplace Evacuation --yfr-
(4). fc t c step 3f7.
L'se VCW to Teas u re r.'r
Connect positive test
lead tc TPI-6 MJ, cc
test lead to wire e~d
(3).
Check that VOf-' indica*es
3 ohms or more. If not,
replace Evacuation Pump
(4). Co to step 367.
t -
-------
Section 6 T --cub I eshcot i ng
298. Reconnect wire to TPI .
299. Use VO' to measure Cl-N'S.
Connect positive test
lead to resistor lead
(2), common test lead to
resistor lead (3).
30C. Check that VOS' indicates
2.5 ohms or more. If
no+, replace R23 (4). Co
to step 37 I .
301. Disconnect varistor lead
(7) from TPI3-6.
302. Use VOI/ to measure OHN:S.
Conrrect positive test
lead to varistor lead
(7), common test lead to
TPI3-7 (5).
303. Check that VOV indicates
IOOK ohms or more. If
not, replace R35 (6). Co
to step 367.
8
304.
305.
306.
Peccrnec
tc TPI ?-
v a --is tor
i i s c c n n e c t »• e d
from TPI -4.
r e ( 8 )
307.
308.
Use VCf to measure O'.'S.
Connect cos i + i vr tes+
lead to red wire ( 8 ) ,
common test lead to Tpl-C
( I ).
Check that VC1-' indicates
25 ohms or more. If net,
•-ep lace T2 ( I C ) . Co to
step 37 i .
Reconnect red wire tc
TPI-4.
6-34
-------
Section 6 - Troubleshooting
309. Disconnect black wire
( 12) from TPI8-3.
310. Use VOM to measure OHMS.
Connect positive test
lead to black wlre (12),
common test lead to
TPI8-4 (13).
311. Check that VOM Indicates
25 ohms or more. If not,
rep I ace T3 (14). Go to
step 367.
312. Reconnect black wire to
TPI8.
313. Disconnect yellow wire
(2) from YFI-7.
314. Use VOM to measure OHMS.
Connect positive test
lead to wire end (2),
common test lead to TPI-3
(9).
315. Check that VOM Indicates
I I 0 ohms or more. If
not, replace T4 (15). Go
to step 37 I.
Reconnect yellow wire to
TPI-7.
Remove Alarm and Valve
Control P.C. Board (II).
6-35
-------
Section 6 - Troubleshooting
318. Use VOM to measure OHMS.
Connect positive test
lead to TPI3-8 (3),
common test lead to J4-4
(2).
319. Check that VOM Indicates
400 ohms or more. If
not, replace Ethylene
Solenoid Valve (4). Go
to step 374.
320. Use VOM to measure OHMS.
Connect positive test
lead to TPI8-I (6) ,
common test lead to J4-3
( I ).
321. Check that VOM Indicates
I OK ohms or more. If
not, replace Selector
Solenoid Valve (13). Go
to step 374.
322. Set MODE SELECTOR (5) to
AMBIENT.
6-36
-------
Section 6 - Troubleshooting
323. Use VOM to measure OHMS.
Connect positive test
lead to DS2 (10), common
test lead to DS2 (12).
324. Check that VOM Indicates
300 ohms or more. If
not, rep I ace DS2 (II).
Go to s*ep 374.
325. Use VOM to measure OHMS.
Connect positive test
lead to DS3 (9), common
test lead to DS3 (7).
326. Check that VOM Indicates
300 ohms or more. If
not, replace DS3 (8). Go
to step 374.
12
11
0
u
o
o
6-37
-------
Section 6 - Troubleshooting
327. Use VOM to measure OHMS.
Connect positive test
lead to P.C. Board
terminal 7 (I), common
test lead to P.C. Board
termi naI 13 (4 ).
328. Check that VOM Indicates
85K ohms or more. If
not, replace Alarm and
Valve Control P.C. Board
(5). Go to step 37 I.
329. Use VOM to measure OHMS.
Connect positive test
lead to P.C. Board
terminal 6 (2), common
test lead to P.C. Board
term i naI 13 (4).
330. Check that VOM indicates
80K ohms or more. If
not, replace Alarm and
Valve Control P.C. Board
(5). Go to step 371.
331 .
Use VOM
Connect
lead to
term tnaI
to measure OHMS
positive test
P.C. Board
5 (3 ), common
test lead to P.C.
terminal 13 (4).
Board
332.
Check that VOM indicates
85K ohms or more. If
not, replace Alarm and
Valve Control P.C. Board
(5). Go to step 37 I.
6-38
-------
Section 6 - Troubleshooting
333. Use VOM to measure OHMS.
Connect positive test
lead to terminal (6),
common test lead to
TPI8-4 (9).
334. Check that VOM indicates
30K ohms or more. If
not, replace AC Current
Regulator P.C. Board (8)
Go~to step 374.
335. Set power supply switch
CIO) to OFF.
336. Use VOM to measure OHMS.
Connect positive test
lead to terminal (7),
common test lead to
TPI8-4 (9).
337. Check that VOM indicates
IOOK ohms or more. If
not, replace AC Current
Regulator P.C. Board (8),
Go to step 374.
6-39
-------
Section 6 - Troubleshooting
338. Set power supply switch
(6) to ON.
339. Reinstall Alarm and Valve
Control P.C. Board.
340. Disconnect lamp cord (15)
from power supply.
341. Use VOM to measure OHMS.
Connect positive test
lead to terminal (5),
common test lead to
terminal (4).
342. Check that VOM indicates
IOK ohms or more. If
not; replace UV f>ower
Supply (13). Co to step
371 .
343. Use VON' to measure OHMS.
Connect positive test
lead to plug (2), common
test lead to plug (3).
344. Check that VOM Indicates
IOOK ohms or more. If
not, replace UV Lamp (I).
Go to step 371 .
345. Reconnect lamp cord to
power supply.
346. Use VCV to measure OHMS.
Connect positive test
lead to resistor lead
(12), common test lead to
res i stor Iead (10).
347. Check that VOM indicates
between 21 and 23 ohms.
If not, replace RI9 (II).
Go to step 371.
15
6-40
-------
Section 6 - Troubleshooting
348. Use VOM to measure OHMS.
Connect positive test
lead to J3-I (7), common
test lead to J3-I3 (9).
349. Check that VOW indicates
20K ohms or more. If
not, go to step 378.
350. Use VOM to measure OHMS.
Connect positive test
lead to J3-2 (8), common
test lead to J3-I 3 (9).
351. Check that VOM indicates
600 ohms or more. If
not, go to step 378.
352. Remove Temp Control F.C.
Board (14).
9 8
V
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13
6-4
-------
Section 6 - Troubleshooting
353.
354.
355.
356.
Use VCM to measure OHMS.
Connect positive test
lead to P.C. Board pin
( I ), common test Iead
P.C. Board pin I (2).
to
Check that VOM indicates
I5K ohms or more. If
not, replace Temp Control
P.C. Board (3). Go to
step 371 .
Reinstall Temp Control
P.C. Board.
Disconnect wire (6) from
Q2.
357. Use VOM to measure OHKS.
Connect positive test
I ead to termi naI (8 ),
common test lead to
term!naI (6).
358. Check that VCM indicates
I70K ohms or more. If
not, replace 02 (7). Go
to step 37 I .
359. Reconnect wire to 02.
360. Use VOM to measure OHf-'S.
Connect positive test
I ead to d i cde Iead (4 ) ,
common test leac tc diode
lead (5).
I
d
Ih
6-42
-------
Section 6 - Troubleshooting
361. Check that VOM deflects
sharpIy to 0, then
Increases to 500 ohms or
more. If not, go to step
398.
362. Use VOM to measure OHMS.
Connect positive test
lead to TP2-IO (9),
common test lead to TP2-8
(10).
363. Check that VOM deflects
sharply to 0, then
increases to I2K ohms or
more. If not; go to step
41 6.
364. Use VOM to measure OHMS.
Connect positive test
lead to TP2-7 (II),
common test lead to TP2-4
(12).
365. Check that VOM deflects
sharp Iy to 0, then
increases to I2K ohms or
more. If not, QO to step
416.
366. Repair or replace wiring
and connectors as
necessary. Go to step
371 .
367. Reconnect disconnected
wi re.
368. Position monitor chassis
in normaI operatIng
pos11i on.
369. Install new 4A-3AG fuse
In fuseholder (13).
370. Go to step I .
6-43
-------
Section'6 - Troubleshooting
371. Position monitor chassis
in norrr.al operating
position.
372. Install new 4A-3AG fuse
i n f usehoIder (I).
373. Go to step I.
374. Reinstall Alarm and Valve
Control F.C. Board.
375. Position monitor chassis
in normal operating
pos i t i on.
^
c
„.- n_.
n 1
; i1
! i i| ', -
L U •-• .-, ,|J
i
37e. Install new 4A-3AG fuse
In fuseholder (I).
377. Go to step I .
378. Remove 110 VDC Power
supp I y P.C. Board (10).
379. Disconnect black wire
from TP3-I (9).
380. Use VOW to measure OHVS.
Connect positive test
lead to TP3-2 (8), common
test lead to black wire
(9).
381. Check that VOW Indicates
14 ohms or more. If not,
replace T2 (6). Go to
step 367.
6-44
-------
Section 6 - Trout Ieshcoting
382. Disconnect diode lead (4)
from TP3-5.
383. Use VOM to measure OHMS.
Connect positive test
lead to TF3-2 (8), common
test lead to diode lead
(4).
384. Check that VOM indicates
IOOK ohms or more. If
not, replace CR2 (7). Go
to step 367.
385. Use VON1 to measure OHMS.
Connect positive test
lead to TP3-6 (5), common
test lead to TP3-2 (8).
386. Check that VOS' indicates
IOOK ohms or more. If
not, rep I ace CRI (II).
Go to step 367.
387. Use VCM to rreasure OM-'S.
Connect positive test
lead to TP3-5 (4), common
test lead to TP3-I (9).
388. Check that VOM deflects
sharp I y to 0, then
increases to IOOK ohms or
more. If not, replace C6
(2), go to step 367.'
389. Use VCV to rreasure OHMS.
Connect positive test
lead to TP3-6 (5), common
test lead to TP3-I (9).
390. Check that VON deflects
sharp Iy to 0, then
increases to ICOK ohms or
more. If rot, reolace C7
^3), go to step 367.
JS.
1
1
5
I
5
g
I
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h
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* t
1
S i
*
p
f
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h
i
;
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m
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I
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f
10
6-45
-------
Section 6 - Troubleshooting
391. Reconnect black wire to
TP3-2.
392. Reconnect diode lead to
TP3-5.
393. Ise VC" to measure OHMS.
Connect positive test
Iead to P.C. Board (II),
common test lead to P.C.
Board (9).
394. Check that VCV Indicates
I50K ohms or more. If
net, rep I ace I IC VDC
Power Supply P.C. Board
(8). Co tc step 367.
395. Use VCM to measure OHf^S.
Connect positive test
lead to P.C. Board (10) ,
common test lead to F.C.
Board (9).
396. Check that VOM Indicates
I5CK ohms or more. If
not, rep I ace I I 0 VDC
Power Supply F.C. Board
(8). Go to step 367.
397. Repair or replace wirino
and connectors as
necessary. Go to step
371 .
6-46
-------
Section 6 - TroubIeshootino
398. Disconnect green wire
from TP3-8 (6).
399. Use VOK to measure OHMS.
Connect positive test
lead to TP3-IO (7),
common test lead to green
wire (6) .
400. Check that VOI/ indicates
0.5 ohms or mo re. If
not, replace T3 (12). Go
to step 367.
401. Disconnect diode lead (4)
from TP5-3.
402
403
404
405
Use VOM to measure OHMS.
Connect positive test
lead to TP5-I (5), common
test lead to dlcde lead
(4) .
Check that VOK Indicates
IOOK ohms or more. If
not, rep I ace CP3 (I ) . Go
to step 367.
D i sconnect diode
from TP5-4.
ead (3)
Use VCK to measure OHMS.
Connect positive test
lead to TP5-I (5), common
test lead to diode lead
(3) .
406. Check that VOK Indicates
IOOK ohms or more. If
not, replace CF4 (2). Go
to step 367.
6-47
-------
Section 6 - Troubleshooting
407. Reconnect diode leads to
TP5.
408. Disconnect wire (3) from
TP5-I0.
409. Use VOM to measure OHMS.
Connect positive test
lead to TP6-7 (I), common
test lead to TP5-IO (3).
410. Check that VOM deflects
sharply to 0, then
increases to IOK ohms or
more. If not, replace C8
(2) , go to step 357.
411. Use VOM to measure OHMS.
Connect positive test
lead to TP6-7 (6), common
test lead to TP5-6 (4).
412. Check that VOM deflects
sharp Iy to 0, then
increases to IOK ohms or
more. If not, replace C9
(5 ) , go to step 367.
413. Reconnect wire to TP5-IO.
414. Reconnect areen wire to
TP3-8.
415. Repair or replace wiring
and connectors as
necessary. Go to step
371 .
6-48
-------
Section 6 - Troubleshooting
416.
417.
Disconnect red
from TP2-7.
wi re (II)
41 8,
419.
420,
421
10
Use VOM to measure OHMS.
Connect positive test
Iead to red wI re (II),
common test lead to TP2-8
( 10) .
Check that VOM
5 ohms or more.
replace T4 (14 )
step 371 .
i nd i cates
If not.
Go to
Disconnect capacitor lead
(9) from TP2-IG.
Use VOM to measure OHMS.
Connect positive test
lead to TP2-IO (9),
common test lead to TP2-7
(II).
Check that VOM Indicates
IOOK ohms or more. If
not, replace CR5 (8). Go
to step 367.
422. Use VOM to measure OHMS.
Connect positive test
lead to TP2-IO (9),
common test lead to TP2-8
( 10).
423. Check that VOM Indicates
IOOK ohms or more. If
not, replace CR6 (7). Go
to step 367.
424. Use VOM to measure OHMS.
Connect positive test
lead to TP2-7 (II),
common test lead to TP2-4
( 12) .
425. Check that VOM indicates
IOOK ohms or more. If
not, rep I ace CR7 (13).
Go to step 367.
11
6-49
-------
Section 6 - Troubleshooting
426. Use VOM to measure OHMS.
Connect positive test
lead to TP2-8 (7), common
test lead to TP2-4 (9).
427. Check that VOM indicates
IOOK ohms or more. If
not, rep I ace CR8 (10).
Co to step 367.
428. Use VOM to measure OHMS.
Connect positive test
lead to capacitor wire
(6), common test lead to
TP2-4 (9).
429. Check that VOM deflects
sharply to 0, then
increases to ICOK ohms or
more. If not, replace
CIO (8), go to step 367.
430. Reconnect wire to TP2-IO.
431. Reconnect wire to TP2-7.
432. Repair or replace wiring
and connectors as
necessary. Go to step
371 .
433. If you are servicing a
mod A or B monitor, go to
step 2533. If not, go to
next step.
6-50
-------
Section 6 - Troubleshooting
434
435,
436.
437.
438.
439.
Check
I ow.
446.
that voltage was
If high, go to step
440.
44 I
DI sconnect
monI tor.
AC power from
Use VOM to measure VDC.
Connect positive test
Iead to term!naI (2) ,
common test lead to
termlnaI (I ).
442
Check that VOM Ind
4 VDC or more. I f
go to step 455.
cates
not,
Use VOM to measure VDC.
Connect positive test
Iead to termi naI (3),
common test lead to
termi naI (4 ).
Check that VOM indicates
between .25 and 1.0 VDC.
If not, go to step 473.
Set the POWER switch to
OFF.
443.
444.
Use VOM to measure OHMS.
Connect positive test
lead to CR3 lead (2),
common test lead to Q2
col I ector (5).
Check that VOM Indicates
between .75 and I.25
ohms. If not, QO to step
497.
Use VCM to measure OHMS.
Connect positive test
lead to 02 Col lector (5),
common test lead to
ground.
Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connector^ as
necessary; go to step I.
6-51
-------
Section 6 - Troubleshooting
445. Replace transistor Q2
(2). Go to step I.
446. Use VOM to measure VDC.
Connect positive test
Iead to term!naI (3),
common test lead to
termi na I (5).
447. Check that VOM Indicates
2.0 VDC or less. I f not,
go to step 504.
448. Set the POWER switch to
OFF.
449. Disconnect AC power from
monltor.
450. Use VOM to measure OHMS.
Connect positive test
lead to term i naI (3),
common test lead to
termi naI (5) .
451. Check that VOM Indicates
18 ohms or more. If not,
go to step 511.
452. Use VOM to measure OHMS.
Connect positive test
lead to CR3 cathode (4),
common test lead to Q2
coI Iector (I).
453. Check that VOM indicates
between .75 and I.25
ohms. If not, go to step
517.
454. Replace transistor 02
(2). Go to step I.
6-52
-------
Section 6 - Troubleshooting
455. Use VOM to measure VAC.
Connect positive test
Iead to termi naI (9),
common test lead to
termlnaI (6).
456. Check that VOM Indicates
10 VAC or more. If not,
go to step 582.
457. Set the POWER switch to
OFF.
458. Disconnect AC power from
mon i tor.
459. Disconnect wire (8) from
term!naI.
460. Disconnect two wires (7)
f rom terminal .
461. Use VCM to measure OHMS.
Connect positive test
lead to CR3 anode (9) ,
common test Iead to CR3
cathode (4).
462. Check that VOM indicates
25 ohms or less. If not,
replace diode CF.3 (1C).
Go to step 526.
463. Use VOM to measure OHMS.
Connect positive test
lead to CR3 cathode (4),
common test lead to CR3
anode (9).
464. Check that VOM indicates
IOOK ohms or more. If
not, replace dicde CR3
(10). Go to step 526.
^
6-53
-------
Section 6 - Troubleshooting
465. Use VOM to measure OHMS.
Connect positive test
Iead to CR4 anode (6),
common test lead to CR4
cathode (7 ).
466. Check that VOM indicates
25 ohms or less. If not,
replace diode CR4 (8).
Go to step 526.
467. Use VOM to measure OHMS.
Connect positive test
lead to CR4 cathode (7) ,
common test lead to CR4
anode (6 ).
468. Check that VOM indicates
IOOK ohms or more. If
not, replace diode CR4
(8). Go to step 526.
469. Disconnect two wires (5)
from term!naI.
NOTE
In the next steps VOM
1ndI cat I on must be
observed, the instant VOM
test leads are connected.
470. Use VCM to measure OHMS.
Connect positive test
lead to terminal (2),
common test lead to
terminal (4) and check
that VOM i nd I cat ion
Initial Iy defIects to 50
ohms or less then
Increases to IOOK ohrr.s or
more. If not, go to step
523.
4 3 2
6-54
-------
Section 6 - Troubleshooting
NOTE
In the next steps VOM
i nd i cat ion must be
observed, the Instant VOM
test leads are connected.
471. Use VOM to measure OHMS.
Connect positive test
Iead to term!naI (I),
common test lead to
terminal (3) and check
that VOM indication
initial ly def lects to 50
ohms or less then
increases to IOOK ohms or
more. If not, go to step
524.
472. Repair or replace wiring
and connectors as
necessary. Go to steo
525.
473. Remove cover (10).
474 . | nterchange
Photomu111pI i er
Temperature Control PC
Board (9) with a new one,
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 16 and continuing
through step 22. If
malfunction symptom still
persists, go to step 475.
If ma If unct ion is
cleared, continue with
checkout.
475. Remove PhotomuItipIier
Temperature Control P.C.
Board.
5-55
-------
Section 6 - Troubleshooting
476,
477,
478.
479.
480.
481 .
Use VOM to measure VAC.
Connect positive test
lead to J2 pin I (I),
common test lead to J2
pin 4 (2).
Check that VOM Indicates
6 VAC or more. If not,
repair or replace wiring
and connectors as
necessary; go to step
565.
Set the POWER switch to
OFF.
Disconnect
monI tor.
AC power from
Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 4 (2),
common test lead to J2
pin 5 (3).
Check that VOM Indicates
3.5K ohms or less . If
not, go to step 529.
482. Use VOM to measure OHVS.
Connect positive test
lead to J2 pin 6 (4),
common test lead to
ground.
483. Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
565.
484. Use VOM to measure OHMS.
Connect positive test
lead to 02 emitter (6),
common test lead to
term!naI (5).
485. Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
565.
6-56
-------
Section 6 - Troubleshooting
486. Use VOM to measure OHMS
Connect positive test
Iead to 02 base (10),
common test lead to
term!naI (9).
487. Check that VOM
25 ohms or less
go to step 535.
nd i cates
If not,
488. Use VOM to measure OHMS.
Connect positive test
lead to 02 base ( 10) ,
common test lead to 02
emitter (6).
489. Check that VOM Indicates
IK ohms or less. If not,
replace transistor 02
(II). Go to step 565.
490. Use VOM to measure OHMS.
Connect positive test
Iead to J2 pin 4 (2),
common test lead to Q3
col Iector (9).
491. Check that VOM indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
565.
492. Use VOX to measure OHMS.
Connect positive test
lead to J2 pin 9 (7),
common test lead to 03
base (8 ) .
493. Check that VOM indicates
I ohrr or I ess . I f net,
repair or replace wiring
and connectors as
necessary; go to step
565.
8
6-57
-------
Section 6 - Troubleshooting
494. Use VOM to measure OHMS.
Connect positive test
Iead to J2 pin 10 (10),
common test lead to 03
emitter (8).
495. Check that VOV indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; qo to step
565.
496. Replace transistor 03
(4). Go to step 565.
497. Disconnect P8 (3) from
detector cell.
u u
e-58
-------
Section 6 - Troubleshooting
498. Use VOM to measure OHMS.
Connect positive test
I ead to J8 pin A (I),
common test lead to J8
pin B (2).
499. Check that VOM Indicates
between 1.0 and 2.0 ohms.
If not, go to step 503.
500. Repair or replace wiring
and connectors as
necessary.
501. Reconnect P8 to detector
eel I .
502. Go to step I.
503. Next, Replace Detector Cell
Assembly procedure begins at
page 7-21. Go on to Step I
when f I nI shed.
504. Use VOM to measure VDC.
Connect positive test
Iead to term!naI (8),
common test lead to
term i naI (5).
505. Check that VOM indicates
.7 VDC or less. If not,
go to step 538.
5C6. Set the POWER switch to
OFF.
507. Disconnect AC power from
mon i tor.
508. Remove cover (12)..
509. Remove PhotomuItIpIier
Temperature Control P.C.
Board (II).
510. Go to step 554.
511. Disconnect RI9 lead (9)
from term i naI.
512. Use VOM to measure OHMS.
Connect positive test
lead to RI9 lead (9),
common test lead to
termt naI (6).
513. Check that VOM Indicates
18 ohms or more. If not,
replace resistor RI9 (7).
Go to step I .
6-59
-------
Section 6 - Troubleshooting
514. Repair or replace wiring
and connectors as
necessa ry.
515. Reconnect RI9 lead to
terminal .
516. Go to step I.
517. Disconnect F8 (3) from
Detector CeI I .
518. Use VOM to measure OKN'S.
Connect positive test
Iead to J8 pin A (2) ,
common test lead to J8
pin B (I).
519. Check that VOW indicates
between I and 2 ohms. I
not, go to step 503.
520. Repair or replace wiring
and connectors as
neces sa ry .
u u
521 .
522.
523.
524.
525.
526.
527.
Reconnect F8 to detector
eel I .
Go to step I.
Replace capacitor C8
(12). Co to step 525.
Replace capacitor C9 (8).
Reconnect two wires to
terminal (9 ) .
Reconnect wire to
terminal ( I I ) .
Reconnect two wire to
terminal (1C).
6-60
-------
Section 6 - Troubleshooting
528. Go to step I .
529. Disconnect P6 (6) from
detector ceI I.
530. Use VCM to measure OHMS.
Connect positive test
lead to J6 pin B (4) ,
common test lead to J6
pin C (5).
531. Check that VOM Indicates
3.5K ohms or I ess . If
not, go -to step 564.
532. Repair or replace wiring
and connectors as
necessary.
533. Reconnect P6 to detector
eel I .
534. Go to step 565.
535. Use VOM to measure OHMS.
Connect positive test
Iead to term InaI (7),
common test Iead to
term InaI (14).
536. Check that VOM Indicates
25 ohms or less. If not,
replace resistor RI9
(13). Go to step 565.
537. Repair or replace wiring
and connectors as
necessary. Go to step
565.
12
u u
-------
Section 6 - Troubleshooting
538. Set the POWER switch to
OFF.
539. Disconnect AC power from
monI tor.
540. Disconnect P6 (9) from
detector cell.
541. Use VOM to measure OHMS.
Connect positive test
I ead to J6 pin B (4) ,
common test lead to J6
pin c (5).
542. Check that VOM Indicates
I.8K ohms cr more, If
not, go to step 503.
543. Remove cover (I).
6-62
-------
Section 6 - Troubleshooting
544. Remove Photomu111pI Ier
Temperature Control P.C.
Board (6).
545. Use VOM to measure OHMS.
Connect positive test
Iead to P6 pin B (2),
common test lead to P4
pin 4 (7).
546. Check that VOM Indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step
567.
547.
Use VOM to measure OHMS.
Connect positive test
lead to P6 pin C (3),
common test lead to J4
pin 5 (8).
548. Check that VOM Indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step
567.
549. Reconnect P6 to detector
eel I .
550. I nsta I I new
Photomu 111 p I ier
Temperature Control PC
Board.
u u
6-63
-------
Section 6 - Troubleshooting
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with-
step 17 and continuing
through step 22. If
ma I function symptom sti I
persists, go to step 551.
If ma Ifunct ion Is
cleared, continue with
checkout.
551. Set the POWER switch to
OFF.
552. Disconnect AC power from
rr.on i tor.
556.
553. Remove new
Photomu11 i pIier
Temperature Control
Board (I).
P.C,
554.
Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 9 (2) ,
common test lead to J2
pin 10 (3).
555. Check that VOM indicates
500K ohms or more. If
not, go to step 570.
557.
558.
559
560,
561.
562.
563.
Use VOM to measure OHMS.
Connect positive test
I ead to term i naI (10),
common test lead to
term i naI (7).
Check that. VOM indicates
IOOK ohms or more. If
not, replace transistor
Q3 (12). Go to step 580.
Disconnect RI9 lead (8)
from term i naI.
Use VOM to measure OHMS.
Connect positive test
lead to RI9 lead (8),
common test lead to
term i naI (7 ).
Check that VOK Indicates
I 8 ohms or more. If not,
replace resistor RI9 (6).
Co to step 580.
Repai r or rep lace wi ri ng
and connectors as
necessary.
Reconnect RI 9 lead to
term!naI (9).
Go to step 580.
™i
6-64
-------
Section 6 - Troubleshooting
564. Next, Replace Detector Cell
Assembly procedure begins at
page 7-21 . Go on to step 565
when finished.
565. Reinstall Photonr.u I t J p I i er
Temperature Control P.C.
Board.
566. Go to step I .
567. Reconnect P6 to detector
ce I I .
568. Reinstall Photorr.u I t i p I I e r
Temperature Control P.C.
Board.
569. Go to step I .
570. Disconnect C5 lead (5)
from term!naI .
571. Use VCM to measure OHMS.
Connect positive test
lead to J2 o 'n 9 (2) ,
common test lead to J2
pin 10 (3).
572. Check that VOV indicates
500K ohrrs or more. If
not, go to step 574.
573. Replace capacitor C5 (4).
Go to step 58C.
574. Disconnect wire (II) from
term InaI .
C
r>
i
i b
n^~
— i i i
un M
1 i ; i i i , '
J ! J u
LJ
L ^r--
n . ^
!
i
;
J
ij u
e-65
-------
Section 6 - Troubleshooting
575. Use VOM to measure OHMS.
Connect positive test
I ead to J 2 pin 9 (3) ,
common test lead to J2
pin 10 (4 ) .
576. Check that VCM indicates
50CK ohms or more. If
not, repair or replace
wiring and connectors as
necessary; ao to step
578.
577. Replace transistor 03
(5) .
578. Reconnect wire to terminal
(6) .
579. Reconnect C5 lead to termina
(6) .
e-ee
-------
Section 6 - TroubIeshoot!no
580.
581 .
582.
583.
584.
Reinstall Photomu11ipI Ier
Temperature Control P.C.
Board.
Go to step I .
Use VOM to measure VAC.
Connect positive test
Iead to termi naI (I),
common test lead to
termi naI (2).
Check that VOM indicates
100 VAC or more. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
Replace transformer
(7). Go to step I .
T3
585. If you are servicing a
MOD-C monitor, go to step
610. If not, gc to next
step .
586. Check that VOM indication
decreased within 15
minutes. If not, oo to
step 592.
587. I nterchange
PhotomuIt i pI i er
Temperature Control PC
Board (8) with a new one.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 23 . If
malfunction symptom still
persists, go to step 588.
If ma Ifunct ion is
cleared, continue with
checkout.
6-67
-------
Section 6 - Troubleshooting
588.
589.
Remove new
PhotomuIt i pI i er
Temperature Control PC
Board (10) from monitor,
rei nsta II old PC Board.
Use VOM to measure VCC.
Connect positive test
I ead to term!naI ( 5) ,
common test lead to
te rm i naI (4 ).
590.
591 .
592.
Check that VOM
I .5 VDC or less
QO- to step 597.
I nd i cates
If not,
Replace transistor Q2
(2). Go to step I.
I nterchange
Photomu11 i pI i e r
Tenperature Control PC
Board ( 1C ) w I th ra new
one.
596.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 23. If
malfunction symptom still
persists, go to step 593.
If malfunction is
cleared, continue with
checkout.
593. Remove new
PhotomuIt i p I i er
Temperature Control PC
Board (10) from monitor,
reinstall old PC Board.
594. Use VOM to measure VDC.
Connect positive test
lead to terminal (5),
common test lead to
term!naI (4 ) .
595. Check that VOW Indicates
5 1.5 VDC or less. I f not,
go to step 600.
Replace transistor Q2
(2) . Go to step I .
u u
6-68
-------
Section 6 - Troubleshooting
597. Use VOK to measure VDC.
Connect positive test
lead to J2 pin 4 (9),
common test lead to J2
pin 5 (8).
598. Check that VOM indicates
2.2 VDC or more. If not,
replace transistor Q3
(3). Go to step I.
599. Next, Replace Detector
Cell Assembly, procedure
begins at page 7-21. Go
on to step I when
f i n i shed .
NOTE
Step 601 must be performed
within 30 seconds after
dIsconnect ing P6.
600. Disconnect P6 (5) from
detector cell.
601. Use VOV to measure OHMS.
Connect positive test
lead to J6 pin E (4) ,
common test lead to J6
pin C (3) .
602. Check that VON: Indicates
4K ohms or more. If not,
go to step 609.
603. Set the POWER switch to
OFF.
604. Disconnect AC pcwer from
monI tor.
6-69
-------
Section 6 - Troubleshooting
605.
606.
Reconnect
eel I .
P6 to detector
607.
Use VOM to measure OHMS.
Connect positive test
lead to terminal (3),
common test lead to
terminal ( 2 ) .
Check "that VOM indicates
between 18 and 26 ohms.
If not, replace resistor
RI9 ( I ) . Go to step I .
608. Replace transistor 03
(4). Po to step I .
509. Next, Replace Detectcr
Cell Assembly, procedure
begins at page 7-21. Go
on to step I when
finished.
610. Check that VON: indication
decreased within 15
minutes. If not, go to
step 618.
611. Remove cover (9)
6-70
-------
Section 6 - Troubleshooting
612. I nterchange
Photomu111pIi er
Temperature Control PC
Board (8) with a new one.
NOTE
To determlne if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 23. If
malfunction symptom still
persists, go to step 613.
If ma I funct ion is
cleared, continue with
checkout.
613. Remove new
Photomu11 i p I i e r
Temperature Control PC
Board (8) from monitor,
reinstall old PC Board.
614. Reinstall cover.
615. Use VOM to measure VDC.
Connect positive test
lead to terminal (6),
common test lead to
term!naI (5).
616. Check that VCW indicates
I .5 VDC or less. If not,
go to step 625.
617. Replace transistor 02
(7 ) . Go tc step I .
618. Remove cover (9).
619. I nterchange
PhotomuIt i pI i er
Temperature Control PC
Board (8) with a new one.
6-71
-------
Section 6 - Troubleshooting
620.
NOTE
To determine If card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 23.. I f
malfunction symptom still
persists, go to step 620.
If ma Ifunct ion is
cleared, continue with
chec kout.
Remove new
Photomultipl ier
Temperature Control PC
Board (9) from monitor,
re i nstaII old PC Board.
62 I. Re i nstaI I cover.
622. Use VON* to measure VDC.
Connect positive test
lead to terminal (7),
corrmon test lead to
terminal (F).
623. Check that VOK Indicates
I .5 VDC or less. If not,
go to step 628.
a
u u
6-72
-------
624. Replace transistor Q2
(8) . Go to step I .
625.
626.
627.
628.
Use VOM to measure VDC.
Connect positive test
lead to J2 pin 4 (3),
common test lead to J2
pin 5 (4).
Check that VOM Indicates
2.2 VDC or more. If not,
replace transistor Q3
( 5 ) . Go to step I .
Next, Replace Detector
Cell Assembly, procedure
beg! ns at page 7-21. Go
on to step I when
f I n i shed .
NOTE
Step 629 must be performed
within 30 seconds after
d I sconnect ing P6.
Section 6 - Troubleshooting
629. Use VOM to measure OHMS.
Connect positive test
lead to J6 pin B (2),
common test lead to J6
pin C (I).
630. Check that VOM Indicates
4K ohms or more. If not,
go to step 637.
631. Set the POWER switch to
OFF.
632. Disconnect AC power from
monI tor.
633. Reconnect P6 to detector
eel I .
Disconnect P6
detector ce I I
(10) from
e-73
-------
Section 6 - Troubleshooting
634. Use VO'. to measure OHMS.
Connect positive test
lead to terminal (4 ) ,
common test lead to
terminal (2).
635. Check that VON' indicates
tetv,een 18 and 26 ohms.
If not, replace Resistor
RI9 (3). Go to step I.
636. Replace transistor C3
(I ). Go to step I .
637. Next, Replace Detector
Cell i^sserrDly, procedure
beains at page 7-21. Co
on to step I when
finished.
638. If you are servicino a
MCD-C monitor, co to step
646. If net, gc to next
step .
639. I nterchange
PhotomuIt i DI i e r
Temperature Control FC
Board (5) with e new one.
6 5
e-74
-------
Section 6 - Troubleshooting
640.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 24". If
malfunction symptom still
persists, go to step 640.
If ma IfunctIon is
cleared, continue with
checkout.
Remove new
Photomu111 pI Ier
Temperature Control PC
Board (5) from monitor,
reinstall old PC Board.
64
642.
643.
Use VOM to measure VDC.
Connect positive test
lead to J2 pin 4 (8) ,
common test lead to J2
pin 5 (9)..
Check that VOM Indication
is stable or smoothly
i ncreas ing. If
indication Is erattlc, go
to step 64
5.
Replace transistor Q2
and transistor 03 (7),
(6)
644. Go to step I
6-75
-------
Section 6 - Troubleshooting
645. Next, Replace Detector
Cell Assembly, procedure
begins at page 7-21. Go
on to step I when
f i n i shed .
646. Remove cover (I).
647 . Interchange
Photomu11 i pI i er
Temperature Control PC
Board (2) with a new one,
NOTE
To determine If card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 24 . If
malfunction symptom stll
persists, go to step 648
If ma(function is
cleared, continue with
checkout.
648. Remove new
Photomu11 i pI ier
Temperature Control PC
Board (2) from monitor,
reinstall old PC Board.
649. Reinsta
cove r.
650. Use VON' to measure VDC.
Connect positive test
lead to J2 pin 4 (3) ,
common test lead to J2
pin 5 (4) .
651. Check that VOM indication
Is stable or smoothly
i ncreas ing. If
Indication Is erattic, go
to step 654.
6-76
-------
Section 6 - Troubleshooting
652. Replace transistor Q2 (6)
and transistor Q3 (5).
653. Go to step I .
654. Next, Replace Detector
Cell Assembly, procedure
begins at page 7-21. Go
on to step I when
f i n i shed.
655. If you are servicing a
MOD-C monitor, go to step
663. If not, go to next
step .
656. |nterchange
Photomu11 i pI ler
Temperature Control PC
Board (7) with a new one.
657.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 25. |f
malfunction symptom still
persists, go to step 657.
If ma IfunctIon is
cleared, continue with
checkout.
Remove new
Photomu111 pI i er
Temperature Control PC
Board (7) from monitor,
reinstall old PC Board.
6-77
-------
Section 6 - Troubleshooting
658. Use VOK to measure VCC.
Connect positive test
lead to J2 pin 4 (I),
common test lead to J2
pin 5 (2) .
659. Check that VOM indicates
2.4 VDC or more. If not,
go to step 662.
660. Replace transistor Q2 (4)
and transistor Q3 (3).
66 I. Go to step I .
662. Next, Replace Detector
Cell Assembly, procedure
begins at page 7-21 » Go
on to step I when
finished.
663. Remove cover (6).
6-78
-------
Section 6 - Troubleshooting
664 . Interchange
Photomu111pI i er
Temperature Control PC
Board (5) with a new one.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 25 . If
malfunction symptom still
persists, go to step 665.
If ma Ifunct i on is
cleared, continue with
checkout.
665. Remove new
Photomu11 i pIi er
Temperature Control PC
Board (5) from monitor,
reinstall old PC Board.
666. Reinstall cover.
667. Use VON' to measure VDC.
Connect positive test
lead to J2 pin 4 (7),
common test lead to J2
pin 5 (8).
668. Check that VOK Indicates
2.4 VDC or more. If not
go to step 671.
S III V Ur
6-79
-------
Section 6 - Troubleshooting
669. Replace transistor Q2 (2)
and transistor Q3 (I).
670. Go to step I.
671. Next. Replace Detector
Cell Assembly, procedure
begins at page 7-21 . Go
on to step I when
finished.
672. If you are servicing a
MOD C monitor, go to step
693. If not, go to next
step.
673.
674
Set the ROWER switch to
OFF.
Check that ethylene
cy I I nder gauge (9)
Indicates 50 psi or more.
If not, replace ethylene
cy I i nder.
8
ETHYLENE
CP
675. Check that oulput gauge
(8) Indicates 30 psi. If
not, adjust pressure
regulating control (7).
676. Inspect ethylene plumbing
for sharp bends or other
damage that could
restrict ethylene flew.
Replace any damaged
plumbing and go to step
I .
u U
6-80
-------
Section 6 - Troubleshooting
677. Loosen fitting (5) on
ethyIene vaIve.
678. Apply leak detector
solution to f i ttIng (5).
WARNING
Use extreme caution when
performing the following
steps. Apply power to
monitor to make flow
check and immediately set
power to OFF.
679. Set the POWER switch to
ON.
680. Check that bubbles appear
at fitting (5). If not,
go to step 687.
681. Set the POWER switch to
OFF.
682. Tighten fitting.
683. Interchange gauge (3)
with a servicable one.
684. Set the POWER switch to
ON.
685. Adjust ethylene pressure
reauIator (10) to
pressure specified on
supplied data sheet. If
pressure cannot be
adjusted, replace
ethylene regulator (4),
go to step I.
686. Go to step I .
687. Set the POWER switch to
OFF.
688. Disconnect AC power from
monI tor.
689. Disconnect wiring from
ethylene solenoid valve
(6) .
TO
OZONE MONITOR
MCOHCtNTOAHON
ZEKO
AMflENT I
: , If
RANG! SUtCTON SUCCTO*
10 SEC
1 SEC | 40 SEC
PME
CONSTANT
SELECTOR
6-81
-------
Section 6 - Troubleshooting
690.
692.
693.
694.
Use VON* tc measure OHMS.
Ccnnec* positive test
lead TC wh i te wire (4),
common test lead to white
wire (3).
C.u,eclv v-at VCM indicates
15 ohrr^ or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
Replace Ethylene Solenoid
VaIve (8). Go to step I .
Set the POWER switch to
OFF.
Check that ethylene
cylinder gauge (7)
indicates 50 psi or more.
If not, replace ethylene
cyI i nder.
695. Check tnat output gauge
(6 ) ind i cates 30 ps: . if
not, adjust pressure
requlat.ing control (5).
696. Inspect ethylene plurrbino
for sharp bends or other
damage that could
restrict ethylene flow.
Replace any damaged
lumbing and go to step
I .
697. Loosen fitting (I) on
ethyler,e valve.
698. Apply leak detector
solution to fitting (I).
ETHYLENE
CP
6-82
-------
Section 6 - Troubleshooting
699.
WARN ING
Use extreme caution when
performing the following
steps. Apply power to
monitor to make flow
check and immediately set
power to OFF.
Set the POWER switch to
ON.
700. Check that bubbles appear
at fitti ng (I). If not,
go to step 707.
701. Set the POWER switch to
OFF.
702. Tighten fitting.
703. Interchange gauge (I I)
with a servicable one.
704. Set the POWER switch to
ON.
705. Adjust ethylene pressure
regulator (9) tc pressure
spec!f ied on suppI led
data sheet. If pressure
cannot be adjusted,
replace ethylene
reguIator (10), go to
step I .
706. Go to step I.
707. Set the POWER switch to
OFF.
708. Tighten fitting.
709. Interchange Alarm and
Valve Control PC Board
(2) with a new one.
710. Set the POWER switch to
ON.
e-83
-------
Section 6 - Troubleshooting
71 I
712.
713.
714.
Adjust ethylene pressure
regulator (5) to pressure
specified on supplied
data sheet. If pressure
cannot be adjusted, go to
step 713.
Go to step I.
Set the POWER switch to
OFF.
Remove new Alarrn and
Valve Control PC Board
(6 ) f rom mon i tor,
re i nsta II old PC Board.
715. Set the POWER switch to
ON.
716. yse VOM to measure VDC.
Connect positive test
lead to J4-7 (I), common
test lead to J4-I3 (2).
717. Check that VON' indicates
IC VCC or more. If not,
go to step 719.
718. Replace Ethylene Solenoid
VaIve (9). Go to step I .
vO V _~~ '—in' "- /-"---~: "-, ' i
e-84
-------
Section 6 - TroubIeshcotino
719. set the POWER switch to
OFF.
720. Check that shorting bar
Is attached to SOL
terminal (8) and COM
terminal (7). If not,
connect shorting bar
between SOL and COM
terminals, go to step I.
721. Set the POWER switch to
ON.
722. use VOM to measure VDC.
Connect positive test
lead to TP4-2 (4), common
test lead to J4-I3 (2).
723. Check that VOM indicates
10 VDC or more. If not,
qo to step 767.
724. Set the POWER switch to
OFF.
725. Disconnect PC power from
monI tor.
726. Use VOM to measure OHMS.
Connect positive test
lead to TP4-2 (4), common
test lead to TP4-4 (3).
727. Check that VOM Indicates
between 700 and 900 ohms.
I f not, go to step 749.
8 7
6-85
-------
Section 6 - Troubleshooting
728.
729.
730.
731
use VON* tc measure OHMS.
Connect positive test
lead to TP4-4 (3), common
test lead to TP4-2 (4).
Check that VOM indicates
between I.IK and I ,3K
ohms. If not, go to step
758.
Use VOM.
Connect
lead to
to measure OHMS.
positive test
TP4-3 (2)
test lead to TP4-4
common
(3).
Check that VCM indicates
between 700 and 900 ohms.
I f not , rep I ace Q6 ( 5 ) .
Go to step I .
732.
733.
734.
735.
736.
Use VOM to measure OHMS .
Connect positive test
lead to TP4-4 (3), common
test lead to TP4-3 (2).
Check that VOM Indicates
between 7K and IOK ohirs.
If not, replace C6 (5).
Go to steo I .
Use VCM to measure OHMS.
Connect positive test
lead to TP4-3 (2), common
test I ead to TP4-2 (4 ).
Check that VOM
IK ohms or more
replace 06 (5).
step I .
ndicates
If not
Go to
Disconnect resistor lead
( I ) from TF4-I .
6-86
-------
Section 6 - Troubleshooting
737.
738.
739.
740.
74 I
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
res Istor Iead (4 ).
Check that VOM Indicates
between 19 and 21 ohms.
If not, rep I ace R32 (8 ).
Go to step I .
Reconnect
to TP4-I.
res i stor I ead
Disconnect resistor
(10) from TP4-I .
lead
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(10), common test lead to
res I sto r lead .( 3 ).
742. Check that VOM indicates
between I.I and I.3K
ohrr.s. If not, replace
R26 (9). Go to step I.
743. Reconnect resistor lead
to TP4-I.
744. Disconnect resistor lead
(7) from TF4-5.
745. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
res i sto r lead (3 ) .
746. Check that VOM Indicates
between 6K and 6.5K ohms,
I f not, rep I ace R29 (6).
Go to step I .
-------
Section 6 - TroubIeshootInq
747. Reconnect resistor lead
to TP4-5.
748. Repair or replace wiring
and connectors as
necessary. Go to step I.
749. Disconnect resistor lead
(6) from TP4-I .
750.
751.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(6), common test lead to
res i stor I ead ( 3) .
Check that VOM indicates
between 19 and 21 ohms.
If not, replace R32 (2).
Go to step 758.
Reconnect resistor lead
to TP4-I .
753. Disconnect resistor lead
(7) from TP4-I.
754. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
res i stor I ead ( I ).
755. Check that VOM Indicates
between I.I and I.3K
ohms. If not, replace
R26 (4). Go to step 758
756. Reconnect resistor lead
to TP4-I .
757. Replace 06 (5). Go to
step I .
758. Disconnect resistor lead
(7) from TP4-I.
6-88
-------
Section 6 - Troubleshooting
759. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
res Istor Iead (I).
760. Check that VOM Indicates
between I.I and I.3K
ohms. If not, replace
R26 (4). Go to step 762.
761. Reconnect resistor lead
to TP4-I.
762. Use VOM to measure OHMS.
Connect positive test
lead to TP4-2 (3), common
test lead tc TP4-4 (I).
763. Check that VOM Indicates
between 700 and 900 ohms.
If not, replace Q6 (5).
Go to step I.
764. use VOM to measure OHMS.
Connect positive test
lead to TP4-4 (I), common
test lead to TP4-2 (3).
765. Check that VOM Indicates
between I.IK and I,3K
ohms. If not, replace q6
(5). Go to step I.
766. Go to step I .
767. Set the POWER switch to
OFF.
768. Disconnect AC p"ower from
monI tor.
6-89
-------
Section 6 - Troubleshoot
769. use VOM to measure OHMS.
Connect positive test
lead to TF2-7 (4), common
test lead to TP2-IO (2).
770. Check that VOM indicates
15 ohms or less. If not,
replace CR5 (6). Go to
step I.
771.
772.
Use VOM to measure OHMS.
Connect positive test
lead to TP2-8 (3), common
test lead to TP2-IO (2).
Check that VOM
I 5 ohms or I ess
replace CR6 (7)
step I .
ndIcates
I f not
Go to
-------
Section 6 - TroubIeshooti
ng
773.
774.
775.
776.
777.
Use VCM to measure OHMS.
Connect positive test
lead to TP2-4 (5), common
test lead to TP2-7 (4).
Check that VOM Indicates
15 ohms or less. If not,
replace CR7 (9). Go to
step I .
Use VOM to measure OHMS.
Connect positive test
lead to TP2-4 (5), common
test lead to TP2-8 (3).
778.
779.
Use VCM to measure OHMS.
Connect positive test
lead to capacitor lead
(2), common test lead to
TP2-4 (5).
Check that VOM deflects
sharply to 0, then
Increases to IOOK ohms or
more. If not, replace
CIO (8), gc to step I .
Check that
I 5 ohms or
rep I ace CR8
step I .
VOM indicates
I ess. If not,
(10). Co to
780.
781 .
782.
Reconnect capacitor
to TP2-IO.
ead
Disconnect b
from TP2-8.
ue wire (3)
Disconnect capacitor lead
(2) from TP2-IO.
Use VOM to measure OHMS.
Connect positive test
I ead to blue w i re (3 ) ,
common test lead to TP2-7
(4).
783.
Check that
10 ohms or
rep I ace T3
step I .
VOM Indicates
I ess. If not,
(I ). Go to
6-9
-------
Section 6 - Troubleshooting
784. Reconnect blue wire to
TP2-8.
785. Repair or replace wiring
and connectors as
necessary. Go to step I .
786. If you are servicing a
MOO C monitor, go to step
791. If not, po to next
step.
787. Check that diverter valve
(I) is fully depressed.
If not, depress diverter
valve and'go to step I.
788. Set the POWER switch to
OFF.
789. Disconnect AC power from
monI tor.
790. Replace diverter valve
(I). Go to step I .
791. Check that diverter valve
(3) is fully depressed.
If not, depress diverter
valve and go to step I.
792. Set the POWER switch to
OFF.
793. Disconnect AC power from
monI tor.
794. Replace diverter valve
(3). Go to step I.
795. Set the POWER switch to
OFF.
796. Disconnect AC power from
mon i tor.
T J
US'
I
-
• , v Ct>flrT*M rO**.*
AD-n tUUTO*
6-92
-------
Section 6 - Troubleshooting
797. Disconnect wires (II)
from S2B-C.
798. Use VOM to measure OHMS.
Connect positive test
lead to lamp socket (4),
common test lead to lamp
socket (5).
799. Check that VOM Indicates
between 100 and 500 ohms.
If not, go to step 804.
800. Reconnect wires to S2B-C.
801 .
802.
Use VOM to measure OHMS.
Connect positive test
lead to S2E-2 (12),
common test lead to S2B-C
(II).
Check that VOM Indicates
less than 5 ohms. If
not, replace MODE switch
(10). Go to step
803. Repair or replace wiring
and connectors as
necessary. Go to step I
804. Remove lens cap (2).
805. Remove lamp (2).
806. Use VOM to measure OHN'S.
Connect positive test
lead to I arrp (9), corrmon
test lead to I amp (7).
807. Check that VOV Indicates
between 100 and 500 ohms
If not, go to step 809.
808. Replace I arrp socket (8).
Go to step I .
309. Replace lamp (6).
12
11
e-93
-------
Section 6 - Troubleshooting
810. Reinstall lens cap.
811. Go to step I .
812. Set the POWER switch to
OFF.
813. Disconnect AC power from
mon i tor.
814. Check that MODE switch
sw i tch (5) has no
physical damage. If
damaged, repair or
rep I ace VCDE sw itch
switch (5)'. Go to step
I .
815. Disconnect wires (4) from
S2A-3.
816. Use VOM to measure OHMS.
Connect positive test
lead to S2A-3 (4), common
test lead to S2A-C (6).
817. Check that VOK indicates
more than 200 ohms. If
not, replace V'ODF switch
(5 ). Go to step I .
818. Reconnect wires to S2-3.
819. Repair or replace wirino
and connectors as
necessary. Go to step I.
821. Set TIKE CONSTANT
SELECTOR (2) to I sec.
6-94
-------
Section 6 - Troubleshooting
NOTE
The next step requires
timing. Beg in timing
when MODE SELECTOR Is set
to AMBIENT.
822. Set MODE SELECTOR (I) to
AMBIENT and check that 03
CONCENTRATION meter (3)
i ndlcates 30 within 2 to
5 seconds. If not, go to
step 833.
823. Set TIME CONSTANT
SELECTOR (2) to 40 sec.
NOTE
The next step requires
timing. Beg in timing
when MODE SELECTOR Is set
to ZERO.
824. Set MODE SELECTOR (I) to
ZERO and check that 03
CONCENTRATION meter (3)
Indicates 20 within 30 to
50 seconds. If not, go
to step 848.
825. Set the POWER switch to
OFF.
826. Disconnect AC power from
mon i tor.
827. Set TIME CONSTANT
SELECTOR (2) to I sec.
828. Use VOM to measure OHMS.
Connect positive test
lead to S4A (8), common
test lead to S4A-C (II).
829. Check that VOM indicates
I ess than 5 ohms. If
not, replace TIME
CONSTANT SELECTOR (7).
Go to step I.
830,
Use VCM to measure OHMS.
Connect positive test
lead to S4E (10), common
test lead to S4B-C (9).
831. Check that VOM Indicates
I ess than 5 ohms. If
not, replace TIME
CONSTANT SELECTOR (7).
Go to step I.
10
8
6-95
-------
Section 6 - Troubleshooting
832. Repair or replace wiring
and connectors as
necessary. Go to step I.
833. Set TIME CONSTANT
SELECTOR (I) to 40 sec.
NOTE
The next step requires
timing. Begin timing
when MODE SELECTOR is set
to ZERO.
834. Set MODE SELECTOR (3) to
ZERO and check that 03
CONCENTRATION meter (2)
indicates 20 within 30 to
50 seconds. If not, go
to step 86 I.
835. Set the POWER switch to
OFF.
836. Disconnect AC power from
mon i tor.
837. Use VOM to measure OHMS.
Connect positive test
lead to S4A (9), common
test lead to S3 (14).
838. Check that VOM Indicates
between 950K and I.IM
ohms. If not, go to step
889.
839. set TIME CONSTANT
SELECTOR (I) to 10 sec.
8 7
6 5
6-96
-------
Section 6 - Troubleshooting
840. Use VOM to measure OHMS.
Connect positive test
lead to S4A-C (12),
common test lead to S4A
(4).
841. Check that VOM indicates
I ess than 5 ohms. If
not, rep I ace TIME
CONSTANT SELECTOR switch
(0). Go to step I
842. use VOM to measure OHMS.
Connect positive test
lead to S4E-C (8), common
test lead to S4B (II).
843. Check that VOM Indicates
I ess than 5 ohms. If
not, rep I ace TIME
CONSTANT SELECTOR switch
( 10) . Go to step I.
844.
845.
846.
847.
848.
849.
Use VOM
Connect
lead to TPII
test lead to
to measure OHMS.
positive test
(15), common
TP 1 2 (6).
Check that VOM indicates
I ess than 5 ohms . I f
not, repair or replace
wiring and connectors as
necessary; go to step I.
Rep lace C2 (13).
Replace C3 (7). Go to
step I .
Set the POWER switch to
OFF.
Disconnect
mon I tor.
AC power from
6-97
-------
Section 6 - Troubleshooting
850.
851 .
852.
853.
854.
855.
Set TIME CONSTANT
SELECTOR (I) to 1C
856.
sec.
Use VOM to measure OHMS.
Connect positive test
lead to S4A-C (8), common
test lead to S4/> (3).
Check that VON1 Indicates
I ess than 5 ohms. If
not, rep I ace TIME
CONSTANT SELECTOR switch
(2). Go to step I.
Use VOM to measure OHMS.
Connect positive test
lead to S4B-C (5), common
test lead to S4B (6).
Check that VOM indicates
I ess than 5 ohms. If
not, rep I ace TIME
CONSTANT SELECTOR switch
(2) . Go to step I.
Set TIME CONSTANT
SELECTOR (I) to I
857.
858.
859.
860.
Use VOM to measure OKf/S.
Connect positive test
lead to S4A-C (8), common
test lead to S4A (4).
Check that VOM indicates
I ess than 5 ohms. If
nott rep lace TIME
CONSTANT SELECTOR switch
(2 ) . Go to step I .
Use VOM to measure OHMS.
Connect positive test
lead to S4B_C (5), common
test lead to S4E (7).
Check that VOM indicates
I ess than 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
(2). Go to step I.
Replace C2 (9).
step I .
Go to
sec.
070NE MONITOR CAL'flHATC
03 CQft)CE*TR*Tl0.j ***
C7 " \X/
'ULL SCALE '.«ODr
BAhGt SELECTOR SfLECTQB
IDStC
1 '->fC . 40 SEC
- | 40
(0s. vC- ©
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CALTUHATt ,,,0 COSiI»Nf\
AOJ'rtT AOArtT SUICTOR\
-
6-98
-------
Section 6 - Troubleshooting
861. Set the POWER switch to
OFF.
862. Disconnect AC power from
mon i tor.
863. Set TIME CONSTANT
SELECTOR (I) to I sec.
864. Use VOM to measure OHMS.
Connect positive test
lead to S4A-C (8), common
test lead to S4A (4).
865. Check that VOM indicates
less than 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
(2). Go to step I .
866. Use VOM to measure OHMS.
Connect positive test
lead to S4B-C (5), common
test lead to S4B (7).
867. Check that VOM indicates
I ess than 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
(2) . Go to step I.
868.
869.
870
871.
872
873,
Set TIME CONSTANT
SELECTOR (I) to 10 sec.
Use VCM to measure OHMS.
Connect positive test
lead to S4A-C (8), common
test lead to S4/» (3).
Check that VOM indicates
less than 5 ohms. If'
not, rep I ace TI ME
CONSTANT SELECTOR switch
(2). Go to step I.
Use VOM to measure OHMS.
Connect positive test
lead to S4E-C (5), common
test lead to S4B (6).
Check that VOM indicates
I ess tha n 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
(2). Go to step I.
Set TIME CONSTANT
SELECTOR ( I ) to I
sec.
— lituj __ JJ_AL'
r ;- _ I
6-99
-------
Section 6 - Troubleshooting
874. Use VOM to measure OHMS.
Connect positive test
lead to S4A-C (9), common
test Iead to S4A (I).
875. Check that VOW indicates
less than 5 ohrrs. If
not, replace TI^E
CONSTANT SELECTOR switch
( 10). Go to step I .
876. Use VOI/ to measure OHVS.
Connect positive test
lead to S4E-C (4), common
test lead to S4E (5).
877. Check that VON' indicates
less than 5 ohrr.s. I f
not, rep I ace TIME
CONSTANT SELECTOR switch
(10). Co to step I .
878. Remove Electometer
Amp I i f i er P.C. Board
(13).
880. Use VOM to measure OH''S.
Connect positive test
Iead to terminal (16),
commcn test lead to S4A
(2).
881. Check that VON' indicates
less than 5 ohms. If
not, repair or replace
v, i r i n n and connectors as
necessary; no tc step I.
882. Use VCX to measure OHMS.
Connect positive test
lead to TPI2 (3), common
test lead to terminal
(15).
883. Check that VfW indicates
less than 5 ohms. If
not, repair or replace
wirinn and connectors as
necessary; go tc stec I.
884. Pep I ace R3 (II).
879. Remove shield (14).
6- I 00
-------
Section 6 - Troubleshooting
885. Rep I ace Cl (12).
886. Rei nstaII sh ieId.
867. Reinstall Electrometer
Amp Ii f ier P.C. Board.
888. Go to step I.
889. Remove resistor lead (8)
890. Use VOM to measure OHMS.
Connect positive test
lead to RI2 (8), common
test lead to RI2 (5).
891. Check that VOM Indicates
between 950K and I.IM
ohms. If not, replace
Rl 2 (7). Go to step I .
892. Reconnect resistor lead
to terminal.
893. Repair or replace wiring
and connectors as
necessary. Go to step I.
894. Set TIME CONSTANT
SELECTOR (17) to 40 sec.
NOTE
The next step reouir'es
timing. Beg in timing
when MODE SELECTOR is set
to ZERO.
895. Set MODE SELECTOR (19) to
ZERO and check that 03
CONCENTRATION meter (18)
indicates 20 within 30 to
50 seconds. If not, go
to step 905.
896. set the POWER switch to
OFF.
897. Disconnect AC power from
mon i to r-
"V.LL'0 S«U'l.
18
cn.im.kTt Ji»o
6-101
-------
Section 6 - Troubleshooting
898. Use VOM to measure OHMS.
Connect positive test
lead to S4A (2), common
test lead to S4B (7).
899. Check that VOM Indicates
less than 5 ohms. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
900. Remove Electrometer
Amp I If ier P.C. Board
(1C).
901. Remove sh ie Id (II),
902. Replace Cl (9).
903. Reinstall Electrometer
Amplifier P.C. Board and
Shield.
904.
905.
906.
907.
908.
909.
910.
91 I .
Go to step I .
Set the POWER switch to
OFF.
Disconnect AC power from
mon1 tor.
Rep lace TIME CONSTANT
SELECTOR switch (I). Go
to step I .
Set the POWER switch to
OFF.
Disconnect AC power from
monI tor.
Use VCM to measure OHMS.
Connect positive test
lead to S4A-C (8), common
test lead to S4A (2).
Check that VOM Indicates
less than 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
(I). Go to step I.
6-102
-------
Section 6 - Troubleshooting
912. use VOM to measure OHMS.
Connect positive test
lead to S4B-C (5), common
test lead to S4B (6).
913. Check that VOM Indicates
I ess than 5 ohms. If
not, rep I ace TI ME
CONSTANT SELECTOR switch
( I ). Go to step I .
914. Replace C3 (4). Go to
step I.
915. set the POWER switch to
OFF.
916. Disconnect AC power from
monI tor.
917. Disconnect wires (15)
from S2A-C.
918. Use VOM to measure OHMS.
Connect positive test
lead to lamp socket (13),
common test lead to lamp
socket (14).
919
920. Reconnect wires to S2-C.
921. Use VOM to measure OHMS.
Connect positive test
lead to S2A-3 (16),
common test lead to S2A-C
(15).
922. Check that VOM indicates
I ess than 5 ohms. l-f
not, replace MODE switch
(17). Go to step I.
923. Repair or replace wirina
and connectors as
necessary. Go to step I.
924. Remove lens cap (12).
925. Remove lamp (12).
Check that VOM indicates
between '100 and 500 ohms.
If not, go to step 924.
WO* i HQMitoa
n
O
©
6-103
-------
Section 6 - Troubleshooting
926. Use VOM to measure OHMS.
Connect positive test
lead to lamp (4), common
test lead to lamp (3).
927. Check that VOM Indicates
between 100 and 500 ohms.
If not, go to step 929.
928. Replace lamp socket (I).
Go to step I .
929. Replace lamp (2).
930. Rej nstaI I lens cap.
931. Go to step I.
932. Set the POWER switch to
OFF.
933. Disconnect AC power from
mon i tor.
934. Check that MODE switch
(6) has no phys!caI
damage. If damaged,
repair or replace MODE
switch (6). Go to step
I .
935. Disconnect wires (7) from
S2B-2.
936. use VOM to measure OHMS,
Connect positive test
lead to S2E-2 (7), common
test lead to S2E-C (5).
937. Check that VOM Indicates
more than 50K ohms. If
not, replace MODE switch
(9 ). Go to step I .
938. Reconnect wires to S2B-2.
939. Repair or replace wiring
and connectors as
necessary. Go to step I.
6-104
-------
Section 6 - Troubleshooting
941. Use VOM to measure VDC.
Connect positive test
lead to TPI6-I (12),
common test lead to
ground.
942. Check that VOM indicates
between 12 and 18 VDC.
If not, repair or replace
wiring and connectors as
necessary; go to step I.
943. Set the POWER switch to
OFF.
944. Disconnect AC power from
monI tor.
945. use VOM to measure OHMS.
Connect positive test
lead to S2B-1 (8), common
test lead to S2B-C (5).
946. Check that VOM Indicates
less than 5 ohms. If
not, replace S2 (6). Go
to step I.
947. Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(II), common test lead to
transistor lead (10).
948. Check that VOM indicates
between 700 and 900 ohms.
If not, go to step 970.
>
949. Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(10), common test lead to
trans i stor Iead (II).
950. Check that VOK indicates
between I.I and I.3K
ohms. If not, go to step
970.
6-105
-------
Section 6
Troubleshoctinc
951
952.
953.
954
Use VOV to measure OHMS.
Connect positive test
lead to transistor lead
(3), common test lead to
trans i stor Iead (2).
Check that VOM
between 700 and
If not, rep I ace
t rans i stor (8 ) ,
step I.
nd i cates
900 ohms
Go to
Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(2), common test lead to
transistor lead ( 3) .
Check that VON*1 indicates
between 7 and IOK ohms.
I f not, replace
trans i stor (8). Go to
step I .
955. use VCM to measure OHMS.
Connect positive test
lead to transistor lead
(3), common test lead to
trans i stor Iead (4),
956. Check that VON' indicates
more then IK ohirs. If
not, replace transistor
(8 ) . Go to step I .
957. Disconnect resistor lead
(1C) from TPI6-I .
958. Use VCr1 to measure OHMS.
Connect positive test
Iead to res i stor Iead
(4), common test lead to
res Istor Iead (10).
959. Check that VON: indicates
between 19 and 21 ohms.
If not, replace resistor
(9). Go to step I .
e-1 oe
-------
Section 6 - Troubleshooting
960. Reconnect resistor lead
(10) to TPI6-I.
961. Disconnect resistor lead
(7) from TPI6-4.
962. Use VON' to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
res Istor Iead (5).
963. Check that VOM indicates
between I.I and I . 3 K
ohms. If not, replace
res i stor (II). Go to
step I .
964. Reconnect resistor lead
(7) to TPI6-4.
965. Disconnect resistor lead
(I ) from TPI6-5.
966. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
resistor lead (2).
967. Check that V0t': indicates
between 6 end 6.5K ohms.
If not, replace resistor
(6). Go to step I .
968. Reconnect resistor lead
(I ) to tPie-5.
969. Repair or replace wiring
and connectors as
necessary. Go tc step I
970. Disconnect resistor lead
(10) from TPI6-I.
10
6- ! 07
-------
Section 6 Troubleshooting
971. Use VON' to measure CHN-'S.
Connect positive test
lead to resistor lead
(3), common test lead to
res i stor Iead (8) .
972. Check that VON1 indicates
between 19 and 21 ohms.
If not, replace resistor
(7). Go to step 979.
973. Reconnect resistor lead
(8) to TPI6-1.
974. Disconnect resistor lead
(5) frorr. TPIC-4.
975. i. sc vOV TC Toasure Oh f'S .
Connect positive test
lead to resistor lead
(5), ccmnr.or. test lead to
resistor lead ( 4 } ,
976. Chect- that VOV, indicates
between I.I and I.3K
ohrrs. If rot, replace
resistor (f). Go to step
983.
977. Reconnect resistor lead
(5) to Tfie-4.
978. Replace transistor (2).
Co to step I.
979. Disconnect resistor lead
(5) from TPI£-4.
6-1 08
-------
Section 6 - Troubleshooting
980.
981 .
982.
983,
984
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(5), common test lead to
resistor lead (4).
Check that VOM indicates
between I.I and I.3K
ohms. If not, replace
resistor (6). Go to step
983.
Reconnect resistor lead
(5) to TPI6-4.
Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(3), common test lead to
trans istor Iead ( I ) .
Check that VOM
between 700 and
If not, rep I ace
trans i stor (2) .
step I .
nd i cates
900 ohms.
Go to
985. Use VOM to measure OH'-'S.
Connect positive test
lead to transistor lead
(I), common test lead to
trans i stor Iead (3) .
986. Check that VOM indicates
between I.I and I.3K
ohms. If not, replace
trans i stor (2). Go 'to
step I .
987. Go to step I.
988. Use VOM to measure VCC.
Connect positive test
lead to TPI 5- I (9),
common test lead to
ground.
989. Check that VOM indicates
between 12 and 18 VDC.
If not, repair or replace
wiring and connectors as
necessary; go to step I.
6-109
-------
Section 6 - Troubleshooting
990. Set the POWER switch to
OFF.
991. Disconnect AC power frorr,
mon i tor.
992. Use VOM to measure OHMS.
Connect positive test
lead to S2A-I (I), common
test lead to S2A-C (3) .
993. Check that VOM indicates
I ess than 5 ohms. I f
not, replace S2 (2). Go
to step I;
994. use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(8), common test lead to
transistor lead (5).
995. Check that VOM indicates
between 7CO and 900 ohms.
If not, go to step ICI7.
996.
997.
998
999.
Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(5), common test lead to
transistor lead (8),
Check that VOM indicates
between I.I and I.3K
ohms.
101 7.
If not, go to step
Use VCM to measure OHMS.
Connect positive test
lead to transistor lead
(6), common test lead to
transistor lead (5).
Check that VOM indicates
between 700 and 900 ohms
I f not, replace
transistor (12). Go to
step I .
6-110
-------
Section 6 - Troubleshooting
1000. Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(5), common test lead to
trans i stor Iead (6 ).
1001. Check that VOM indicates
between 7 and IOK ohms.
If not, rep I ace
transistor (12). Go to
step I .
1002. Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(6), common test lead to
trans i stor Iead (8 ).
1003. Check that VOM Indicates
more than IK ohms. If
not, replace transistor
(7). Go to step I.
1004. Disconnect resistor lead
(10) from TPI5-I.
1005. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(8), common test lead to
res Istor Iead (10).
1006. Check that VOM Indicates
between 19 and 21 ohms.
If not, replace resistor
(II). Go to step I.
1007.
008.
1009.
Reconnect resistor lead
(10) to TPI5-I .
Disconnect resistor lead
(4) from TPI5-4 .
Use VOM tc measure OHMS.
Connect positive test
lead to resistor lead
(4), common test lead to
res i stor lead (9).
1010. Check that VOM indicates
between I.I and I.3K
ohms. If not, rep I ace
res i stor (13). Go to
step I .
6-M I
-------
Section £.- Troubleshooting
ION. Reconnect resistor lead
(9) to TPI5-4.
1012. Disconnect resistor lead
(7) from TPI5-5.
1013. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
res i stor Iead (2).
1014. Check that VOM indicates
between 6 and 6.5K ohms.
If not, rep I ace
resistor (6). Go to
step I .
1015. Reconnect resistor lead
(7) to TPI5-5.
ICI6. Repair or replace wiring
and connectors as
necessary. Go to step
1 .
1017
1018
1019
1020.
1021
Disconnect resistor lead
(5) from TPI 5-1 .
use VOM to measure CH^S.
Connect positive test
lead to resistor lead
(3), common test lead to
res i s tor lead ( 5 ) .
Check that VOM indicates
between 19 and 21 ohms.
If not, go to step 1026.
Reconnect resistor
(5) to TPI 5-1 .
lead
Disconnect resistor lead
(9) from TPI 5-4.
6-112
-------
Section 6 - Troubleshooting
022
1023.
1024.
1025.
1026.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(9), common test lead to
res i stor Iead (4 ).
Check that VOM indicates
between I.I and I.3K
ohms. If not, go to
step 1030.
Reconnect resistor lead
(9) to TPI5-4.
1027. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(9), common test lead to
res i stor I ead (4 ) .
1028. Check that VOM indicates
between I.I and-. I . 3K
ohms. If not, replace
res i stor ( 8) . Go to
step I .
Replace transistor
Go to step I .
(I).
Disconnect resistor lead
(9) from TPI5-4.
1029.
1030.
Reconnect res
(9) to TPI 5-4
Use VOM
Connect
lead to
•
stor
1 ead
tc measure OHMS.
pos i t i ve test
trans i stor 1 ead
(3), common test lead to
trans i stor I ead (2) .
1031. Check that VOM indicates
between 700 and 900
ohms. If not, replace
transistor (I). Go to
step I .
6-113
-------
Section 6 - Troubleshooting
1032. Use VOM to measure OHMS.
Connect positive test
lead to transistor lead
(3), common test lead to
trans i stcr Iead (4 ).
1033. Check that VOM indicates
between I.I and I.3K
ohms. If not, replace
trans i stor (I). Go to
step I .
1034. Go to step I .
1035. Set the POWER switch to
OFF.
1036. Disconnect AC power from
mon i tor.
1037. Use VOM to measure OHMS.
Connect positive test
lead to TPI6-4 (5) ,
common test lead to
ground.
1038. Check that VOM indicates
more than I.IK ohms. If
not. qo to step 1043.
1039. Set MODE SELECTOR (9) to
CALIBRATE.
1040. Use VOM to measure OHMS.
Connect positive test
Iead to TPI6-2 (7) ,
common test lead to
TPI6-3 (6).
1041. Check that VOM indicates
more than 50K ohms. If
not, replace transistor
(8). Go to step I .
e- i 14
-------
Section 6 - Troubleshooting
042
1043,
1044
1045.
1046.
1047.
1048.
I 049.
1050.
Repair or replace wiring
and connectors as
necessary. Go to step
Disconnect transistor
lead (5) from TPI6-4.
Use VOM to measure OHMS.
Connect positive test
lead to TPI6-4 (5),
051. Set MODE SELECTOR
CALIBRATE.
(9) to
common test
ground.
ead to
Check that VOM indicates
more than I.IK ohms. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
Replace transistor (8).
Go to step I.
Set the POWER switch to
OFF.
Disconnect AC power from
mon i tor.
Use VOM to measure OHMS.
Connect positive test
lead to TPI5-4 (3),
common test lead to
ground.
Check that VOM indicates
more than I.IK ohms. If
not, go to step 1055.
1052. Use VOM'tc measure OHMS.
Connect positive test
lead to TFI 5-2 (4) ,
common test lead to
TPI5-3 (2).
1053. Check that VOM. Indicates
more than 50K ohms. If
not, replace transistor
(I ). Go to step I .
1054. Repair or replace wiring
and connectors as
necessary. Go to step
I .
1055. Disconnect transistor
lead (3) from TPI5-4.
1056. Use VOM tc measure OHMS.
Connect positive test
lead to TPI5-4 (3),
common test lead to
ground.
1057. Check that VOM Indicates
more than I.IK ohms. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
1058. Replace transistor (I).
Go to step I.
o
n
O
0 -H. © O
O (§> '•§)
S
©It)
e-
-------
Section 6 - Troubleshooting
1059. If you are servicing a
VOD C monitor, go to
step I 066. i f not, go
to next step.
1060. Set the POWER switch to
OFF.
1061. Disconnect AC power from
mon i tor.
1062. Use VOM to measure OHN"S.
Connect positive test
lead to POWER switch
(I), common test lead to
Inside wire nut with one
white and one black wire
(4) .
1063. Check that VOM Indicates
less than 5 ohrr.s. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
£-
-------
Section 6 - Troubleshooting
064
1065
1066
067
Use VOM, to measure OHMS.
Connect positive test
lead to TPI (5), common
test lead to inside wire
nut with one white and
two black wires (3 ) .
Check that VOM indicates
less than 5 ohms. I f
not, repair or replace
wiring and connectors as
necessary; go to step I.
Replace pump assembly
(2), refer to page 7-1,
Go to step I .
068
Use VOM
Connect
lead to
common
ground.
to measure VAC.
pos i t i ve test
TPI-5 (7),
test lead to
1069.
1070,
071
Check that VOM indicates
between ICO and 125 VAC.
I f not, repa i r or
rep I ace wiring and ,
connectors as necessary;
go to step I .
Use VOM to measure VAC.
Connect positive test
lead to TPI-6 (6) ,
common test lead to
ground,
Check that VOM indicates
between 100 and 125 VAC.
If not, replace pump
assembly (8 ). Go to
step 1 .
8
e- i 17
-------
Section 6 - Troubleshooting
1072. Use VOM to measure VAC.
Connect positive test
Iead to TPI-7 (I),
common test lead to
ground .
1073. Check that VON! indicates
between ICO and 125 VAC.
If not, repa i r or
replace wiring and
connectors as necessary;
go to step I .
1074. Set the POWER switch to
OFF.
1075. Disconnect AC power from
mon i tor.
1076. Replace pump assembly
(2), refer to page 7-1.
1077. Go to step I .
078
If you are servicing a
MOD C monitor, go to
step I 1 01 . If not, go
to next step .
1079.
Set the
OFF.
POWER switch to
CAUTION
060.
1081.
Use extreme caution when
connecting or
disconnecting capillary
tube fittings. The
capillary tube is easily
damaged .
Disconnect fitting (5)
from ethylene regulator.
Connect bubb I err.eter kit
(3) to end of capillary
tube .
6-118
-------
Section 6 - Troubleshooting
1082. Set the POWER switch to
ON.
NOTE
The foI I owlng step
requires timing. Begin
timing when bubble
forms.
1083. Momentarily depress bulb
(4) on bubblemeter until
bubble forms, then time
for one mi nute.
1084.
Check that flowmeter (3)
indicates approximately
25 cc/min ethylene flow.
If not, go to step
I 086.
1085. Replace dlverter valve
(8). Go to step I.
1086. Set the POWER switch to
OFF.
1087. Reconnect fitting to
ethylene regulator.
1088. Disconnect fitting (6)
from ethylene regulator.
1089. Interchange sintered
f i I ter (?} with a new
one.
1090. Reconnect fitting to
ethylene regulator.
1091. Connect bubblemeter kit
(3) to dlverter valve
(8).
8
ITIIVLt-K
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x
T
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VL
OZONE MONITOR CAUiHAT
ZENO
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03 CD**CENTRATiON J |
It
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^ '' nut
AOJUGl ADJUST ^ LtCTOR
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Of
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6-119
-------
Section 6 - Troubleshooting
1092. Set the POWER switch to
ON.
1093. Adjust ethylene
regulator to pressure
specified on Supplied
Data Sheet.
1094. Connect bubbIemeter
tubing (2) to diverter
valve (4).
NOTE
MOD A diverter valve is
located on Ethylene Flow
Box.
1095. Pull diverter valve (4)
outward.
1096. Momentarly depress
rubber bulb (3) on
bublemeter until bubble
forms inside tube.
1097.
U u
Depress and hold
diverter valve (4) when
bubble reaches 0 on
bubblemeter scale.
NOTE
The f o I I ow i ng step
requires timing. Start
and stop ethylene flow
and stopwatch at the
same time.
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6-1 20
-------
Section 6 - Troubleshooting
1098. Pull diverter valve (4)
outward and time for one
minute. Depress
dIverter vaIve (4 ).
Observe height in
centimeters reached by
bubbIe.
1099. Check that Indicated
flow rate is 25 cc/min
or more. If not,
replace capillary tube
(5). Go to step I .
I 100. Go to step I .
I 101. Set the POWER switch to
OFF.
CAUTION
Use extreme caution when
connecting or
disconnecting capillary
tube fittings. The
capillary tube Is easily
damaged.
1102. Disconnect fitting (6)
from ethylene regulator.
1103. Connect bubb I err.eter kit
(I) to end of cap! I lary
tube.
1104. Set the POWER switch to
ON.
NOTE
The foI Iow1ng step
requires timing. Begin
timing when bubb I e
forms.
1105. Momentarily depress bulb
(3) on bubblemeter until
bubble forms, then time
for one minute.
1106. Check that flowmeter (I)
Indicates approximately
25 cc/min ethylene flow.
I f not, go to step
I 108.
6-12
-------
Section 6 - Troubleshooting
1107. Replace diverter valve
(I). Go to step I.
1108. Set the POWER switch to
CFF.
I IC9. Reconnect fitting to
ethylene regulator.
1110. Disconnect fitting (4)
from ethylene regulator.
INI. Interchange sintered
f i I ter (2) with a new
one.
1112. Reconnect fitting to
ethylene regulator.
1113. Connect bubblemeter kit
(7) to diverter valve
( I ).
1114. Set the POWER switch to
ON.
1115. Adjust ethylene
regulator to pressure
specified on Supplied
Data Sheet.
MI6. Connect bubblemeter
tubing (8) to diverter
vaIve ( I ) .
NOTF
N'OD A diverter valve is
located on Ethylene Flow
Eox.
1117. PuI I d iverter vaIve ( I )
outward .
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o
a © o
o i
7
e-i 22
-------
Section 6 - Troubleshooting
1118.
1119,
I 120
Momentarily depress
rubber bulb (9) on
bublemeter until bubb
forms Inside tube.
e
Depress and ho I d
diverter valve (I) when
bubbIe reaches 0 on
bubblemeter scale.
NOTE
The foI I owlng step
requires timing. Start
and stop ethylene flow
and stopwatch at the
same t i me.
Pull d!verter vaIve ( I )
outward and time for one
mi nute. Depress
d i verter vaIve (I).
Observe he Ight In
centimeters reached by
bubbIe.
M2t. Check that Indicated
flow rate is 25 cc/rrin
or more. If not,
replace capillary tube
(3). Go to step I.
I I 22. Go to step I .
1123. If you are servicing a
MOD-C monitor, go to
step I I 69. If not, go
to next step.
M24. Set MODE SELECTOR (5) to
AMBIENT.
I 125. Adjust SAMPLE PLUS
EHTYLENE flowrreter (6)
to value specified en
SuppIied Data Sheet. I f
not, go to step 1129.
1126. Set MODE SELECTOR (5) to
ZERO.
6.
OZONE MONITOR
Jt«0
, ; 7""i I
'ULL SCALE V001
KT @ '& 1' f
{I CAuO«ATE ZERO CCS"iNr rO*TH
e- 123
-------
Section 6 - Troubleshooting
I 127.
I 128.
I I 29.
I I 30.
1131.
Adjust SAMPLE PLUS
EHTYLENE f lowrr.eter { I )
to value specified on
Supplied Data Sheet. If
not, go to step 1138.
Go to step I.
Set MODE SELECTOR (2) to
ZERO.
Adjust SAMPLE PLUS
EHTYLENE f lowrr.eter ( I )
to value specified on
SuppI i ed bata Sheet. If
not, go to step 1143.
Set MODE
AMBIENT.
SELECTOR (2) to
1132. Disconnect Sample Filter
(10) from Sample In
fitting.
I I 33. Seal off air flow at
Samp Ie In fitting (8).
1134. Check the SAMPLE PLUS
ETHYLENE flowmeter (9)
slowly decreases to 0. If
not, refer to Check Sample
and Calibration Sample
Flow Paths; page 7-29.
1135. Replace sample filter
element (5), refer to Inspect
and Service the Sample Filter;
page 5-5.
e-1 24
-------
Section 6 - Troubleshooting
1136. Adjust SAMPLE PLUS
ETHYLENE f lowir.eter ( I )
to value specified on
Supplied Data Sheet. If
not, replace plumbing as
necessary. Go to step
I .
I I 37. Go to step I .
I I 38. Sea I off air f I ow at
Calibration Sample Inlet
(3).
1139. Check the SAMPLE PLUS
ETHYLENE flowmeter (9)
s I ow I v decreases to 0. If
not, refer to Check Sample
and Calibration Sample Flow
Paths; paqe 7-29.
1140. Replace Calibration Sample
F i I ter (4 )
Inspect and
Calibration
page 5-1
refer to
Service the
Sample Filter;
1141. Adjust SAMPLE PLUS
ETHYLENE flowreter (I)
to value specified en
Supplied Data Sheet. If
not, replace plumbing as
necessary. Go to step
I .
I 142. Go to step I .
1143, Disconnect exhaust
fitting (6) from
detector cell.
I I 44. Adjust SAMPLE PLUS
EHTYLENE flowmeter ( I )
to value specified on
Supplied Data Sheet. If
not, go to step 1151.
1145. Reconnect exhaust
fitti.ng to detector
eel I .
1146. Disconnect COMM fitting
(7) from solenoid valve.
8
e-i 25
-------
Section 6 --Troubleshooting
I 147.
I I 48.
I 149.
I I 50
I 151
I 152
Adjust SAMPLE FLUS
EHTYLENE f lowrreter ( I )
to value specified on
Supplied Data Sheet. If
not, go to step 1155.
Rep I ace SeIectcr
ScIenoi d Va I ve (4 ).
Adjust SAMPLE PLUS
ETHYLENE f lowmeter (I )
to value specified on
Supplied Data Sheet. If
not, replace plumbing as
necessary. Go to step
I .
Go to step I .
Reconnect exhaust
fitting to detector
eel I .
Interchange SAMPLE PLUS
ETHYLENE flowrceter (5)
with a new one.
I I 53. Adjust SAMPLE PLUS
EHTYLENE f lowrreter ( I )
to vaIue spec i f i ed on
Supplied Data Sheet. If
not, go to step 1159.
I I 54. Co to step I .
1155. Reconnect CONIM fitting
to so Ieno id vaIve .
1156. Replace Detector Cell
(3), refer to Replace
Detector Cell Assembly; pane
7-21 .
1157. Adjust SAMPLE PLUS ETHYLENE
flowmeter (I) to value
specified on Supplied Data
Sheet. If not, renlace
plumbinq as necessary. Ho
to Step I.
1158. Go to step I .
__
vfy
Y
I
6- I 26
-------
Section 6 - Troubleshooting
1159. Remove new SAMPLE PLUS
ETHYLENE flowrr.eter (5)
from monitor, reinstall
old fIowmeter.
1160. Check pump reed valve
assembly, refer to Clean
Reed Valve Assembly.
1161. Adjust SAMPLE PLUS
EHTYLENE flowmeter ( 1 )
to vaIue speci f i ed on
Supplied Data Sheet. I f
not, go to step 1163.
I I 62. Go to step I .
1163. Interchanqe pump assembly
(2) with a new one.
Refer to Replace Pump
AssembIv.
r ^—
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, J
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6
I I 64. Adjust SAMPLE PLUS
EHTYLENE flowmeter (I)
to value specified on
Supp I led Data Sheet. If
not, go to step 1166.
I 165. Go to step I .
1166. Remove new pump assembly
( 2 ) f rorc iro n i to r ,
reinstall old pump
assembIy.
M67. Replace plumbing as
necessa ry.
I 168. Co to step I .
1169. Set MODE SELECTOR (6) to
AMEIENT.
I I 70. Adjust SAMPLE PLUS
EHTYLENF flowmeter (7 )
to value specified on
SuppI Ied Data Sheet. I f
not, go to step 1174.
6-1 27
-------
Section 6 - TrcubIeshcoti
1171.
I I 72.
I 173.
I 174.
I 175.
Set MODE SELECTOR (I) to
ZERO.
Adjust SAMPLE PLUS
EHTYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, go to step 1183.
Go to step I .
Set MODE SELECTOR
ZERO.
( I ) to
Adjust SAMPLE PLLS
EHTYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, go to step 1188.
I 176.
1177.
1178.
I 179.
I 180.
Set MODE SELECTOR ( I )
AMBIENT.
to
Disconnect Sample Filter
( I 0) from SAMPLE IN
f i tting.
Sea I off air fIow at
SAMPLE IN fittino (7).
Check the SAMPLE PLUS
ETHYLENE fIowmeter (II)
slowly decreases to 0. If
not, refer to Check Sample
and Calibration Sample Flow
Paths; paae 7-29.
Replace sample filter
element (8), refer to
Inspect and Service the
Samp Ie F i I ten; paqe
5-5.
6-1 28
-------
Section 6 - Troubleshooting
1181. Adjust SAMPLE PLUS
ETHYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, replace plumbing as
necessary. Go to step
I .
I I 82. Go to step I .
I 183. Seal off air fIow at
Calibration Sample Inlet
(6).
1184. Check the SAMPLE PLUS
ETHYLENE flowmeter (II)
slowly decreases to 0. If
not, refer to Check Sample
and Calibration Sample Flow
Paths; page 7-29.
1185. Replace Calibration Sample
Fi I ten (9), refer to
Inspect and Service the
Calibration Sample Filter;
page 5-I .
| 186. Adjust SAMPLE PLUS
ETHYLENE flowmeter (2)
to value specified on
SuppIied Data Sheet. I f
not, replace plumbing as
necessary. Go to step
I 187. Go to step I .
1188. Disconnect exhaust
fitting (3) from
detector ceI I .
I 189. Adjust SAMPLE PLUS
EKTYLENE flowrreter (2)
to value specified on
SuppI led Data Sheet. If
not, go to step I 196.
1190. Reconnect exhaust
fitting to detector
eel I .
1191. Disconnect COMM fitting
(5) from solenoid valve.
I 192. Adjust SAMPLE PLUS
EHTYLENE flowrreter (2)
to value specified on
SuppI ted Data Sheet. If
not, go tc step 1200.
I I 93. Rep I ace Se lectcr
So I enoi d ~Va I ve (4 ) .
| 194. Adjust SAMPLE PLUS
ETHYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, replace plumbing as
necessary. Go to step
6-1 29
-------
Section 6 - Troubleshooting
1195. Co to step I.
1196. Reconnect exhaust
fitting to detector
eel I .
1197. Interchange SAMPLE PLUS
ETKYLENE flowmeter (I)
with a new one.
I I 98. Adjust SAMPLE PLUS
EHTYLENE flowmeter (2)
to va I ue .spec i f i ed on
Supplied Data Sheet. If
not, go to step 1204 .
I I 99. Go to step I .
1200. Reconnect COW fitting
to so Ienoi d vaIve .
1201. Replace detector cell
1202.
I 20
1204.
(4), refer to
Detector Cell
page 7-21
Replace
Assembly;
na<-!C
Adjust SAMPLE PLUS ETHYLE'JE
flowmeter (2) to value
specified on Supplied Data
Sheet. If not, replace
p I umb i nq as necessary. Go
to Step I .
Co to step I .
Remove new SAMPLE PLUS
EThYLENE f lowrreter ( I )
f rorr monitor, reinstall
old f I owme ter -
6- I 30
-------
Section 6 - Troubleshooting
1205. Check pump reed valve
assembly, refer to Clean
Reed Valve Assembly.
1206. Adjust SAMPLE PLUS
EHTYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, go to step 1208.
1207. Go to step I .
1208. Interchange pump assembly
(3) with a new one.
Refer to Replace Pump
AssembIy.
(209. Adjust SAMPLE PLUS
EHTYLENE flowmeter (2)
to value specified on
Supplied Data Sheet. If
not, go to step 1211.
1210. Go to step I.
1211. Remove new pump assembly
(3) from monitor,
re!nstaII old pump
assembIy.
1212. Replace plumbing as
necessary.
1213. Go to step I.
1214. If you are servicing a
MOD C monitor, go to
step 1260. If not, go
to next step.
1215. Insure Power Supply
switch (6) Is set to ON.
If not, set swItch (6)
to ON and go to step I.
1216. Set the POWER switch to
OFF.
1217. Disconnect plug (5).
1218. Set the POWER switch to
ON.
u u
6-131
-------
Section 6 - Troubleshooting
1219.
CAUTION
High voltage may be
present on plug
terminals. Use caution
when connecting test
Ieads.
Use VOM to measure VAC.
Connect positive test
lead to plug (4), common
test lead to plug (3).
220. Check that VOM Indicates
800 VAC or more. If
not, go to step 1230.
1221. Set the POWER switch to OFF
1222. Reconnect plug.
1223. Remove ultraviolet lamp
(2).
1224. Set the POWER switch to
ON.
1225. Set MODE SELECTOR (5) to
CALIBRATE.
6-132
-------
Section 6 - Troubleshooting
1226. Check that ultraviolet
I amp is lit. If not, go
to step 1239.
1227. Set the POWER switch to
OFF.
1228. Disconnect AC power from
mon i tor.
1229.
1230.
1231 .
Replace Ozone Generator
( I ). Go to step I.
Use VOM to measure VAC.
Connect positive test
lead to AC Current
Regulator OUT (6),
common test lead to
ground.
Check that
between 30
I f not, go
VOW Indicates
and 40 VAC.
to step 1243.
6-133
-------
Section 6 - Troubleshooting
1232.
233.
234
1235.
Set the POWER
OFF.
sw i tch to
D i sconnect
mon i tor.
AC power from
Use VOM to measure OHMS.
Connect positive test
lead to TPI (7), commoft
test lead to AC Current
Regulator OUT (5).
Check that VOM indicates
less than 5 ohms. If
not,-repair or replace
wiring and connectors as
necessary; go to step
1303.
1236. Use VOM to measure OHMS.
Connect positive test
lead to TPI (6), common
test lead to AC Current
Regulator COM (4).
1237. Check that VOM indicates
less than 5 ohrr.s. If
not, repair or replace
wiring and connectors as
necessary; go to step
I 303.
1238. Replace Ultraviolet Lamp
Power Supply (2). Go to
step I .
6-134
-------
Section t - Troubleshcotino
1239. Set the POWER switch to
OFF.
1240. Disconnect AC power from
rr.on i tor.
1241. Replace ultraviolet Lamp
(3).
I 242. Go to step I .
1243. Use VCM tc measure VAC.
Connect positive test
lead to MODE switch (I ) ,
common test lead to
ground .
1244. Check that VOM indicates
I CO VAC or more. If
net, go tc step 1246.
e-135
-------
Section 6 - Troubleshooting
1245. Use VOM to measure VAC.
Connect positive test
lead to AC Current
Regulator IN (2), common
test lead to AC Current
Regulator COM (3) .
1246. Check that VOM. indicates
100 VAC or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
1303.
1247. Replace AC Current
ReguIator (I). Go to
step 1303.
1248. Use VOM tc measure VAC.
Connect positive test
lead to MCDE switch (9),
common test lead to
ground.
1249. Check that VON' indicates
100 VAC or more. If
not, repair or replace
wlrinq and connectors as
necessary; go to step
1303.
1250. Set the POWER switch to
OFF.
1251. Disconnect AC power from
monI tor.
1252. Use VOM tc measure OHMS.
Connect positive test
lead to MODE switch
(M), common test I ead
to MCDE switch (12).
1253. Check that VOM indicates
less than 5 ohrr.s. If
not, replace MCDE switch
(7). Go to step 1303.
1254. Set MODE SELECTOR (4) to
AMEIENT.
e-
-------
Section 6 - Troubleshooting
1255
256
Use VOM to measure OHMS.
Connect positive test
lead to MODE switch (8),
common test lead to MODE
switch (10).
Check that VOM Indicates
between 950 and I.IK
ohms. If not, replace
R2I (5). Go to step
1303.
257.
1258.
Use VOM to measure OHMS.
Connect positive test
lead to MODE switch (7),
common test lead to MODE
switch (12).
Check that VOM indicates
I ess thaji 5 ohrr.s . I f
not, repair or replace
wiring and connectors as
necessary; go to step
1303.
1259.
Rep I ace
to step
Trlac
1303.
(6)
Go
789
6-1 37
-------
Section 6 - Troubleshooting
1260. Insure Power Supply
switch ( I ) is set to ON.
If not, set switch (I )
to ON and go to step I.
1261. Set the POWER switch to
OFF.
1262. Disconnect plug (4).
1263. Set the POWER switch to
ON.
CAUTION
High voltage may be
p resent on plug
terminals. Use caution
when connecting test
Ieads.
1264. Use VOM to measure VAC.
Connect positive test
lead to pIug (10),
common test lead to plun
(9).
1265. Check that VCK indicates
800 VAC or more. If
not, go to step 1275.
1266. Set the POWER switch to
OFF.
1267. Reconnect plug.
6-1 38
-------
Section 6 - Troubleshooting
1268. Remove ultraviolet lamp
(5).
1269. Set the POWER switch to
ON.
1270. Set MODE SELECTOR (3) to
CALIBRATE.
1271. Check that ultraviolet
I amp Is lit. If not, go
to step I 284-
1272. Set the POWER switch to
OFF.
1273. Disconnect AC power from
monI tor.
274. Replace Ozone Generator
(6) . Go to step I .
275
1276.
277
10
1278.
Use VOM to measure VAC.
Connect positive test
lead to AC Current
Regulator IN (8), common
test lead to ground.
Check that VOM Indicates
100 VAC or more. If
not, go to step 1288.
Use VOM to measure VAC.
Connect positive test
Iead to AC Current
Regulator OUT (7),
common test lead to
ground.
Check that VOM Indicates
30 VAC or more. If not,
go to step 1302.
8
6-139
-------
Section 6 - Troubleshooting
1279,
1280,
1281 ,
1282,
Set the POWER switch to
OFF.
Disconnect AC power from
monI tor.
Use VOM to measure OHMS.
Connect positive test
lead to TPI-8 (I),
common test lead to AC
Current Regulator OUT
(7).
Check that VOM indicates
less than 5 ohms. If
not, repair or replace
wiring and connectors as
necessary; go to step
1303.
1283. Replace Ultraviolet Lamp
Power Supply (5). Go to
step I.
1284. Set the PCWER switch to
OFF.
1285. Disconnect AC power from
monI tor.
1286. Replace Ultraviolet lamp
(6).
1287. Go to step I.
6-140
-------
Section 6 - Troubleshooting
1288.
1269.
Use VOM to measure VAC.
Connect positive test
lead to Alarm and
Control Card (4), common
test lead to ground.
Check that VOM indicates
100 VAC or more. If
not, go to step 1293.
1292. Repair or replace wiring
and connectors as
necessary. Go to step
I 303.
1293. Set the POWER switch to
OFF.
1294. Disconnect AC power from
mon I tor.
1290. Set the POWER switch to
OFF.
1291. Disconnect AC power from
monI tor.
1295. Disconnect CR9 (2) from
J4-5.
1296. Use VOM to measure CNN'S.
Connect positive test
lead to CR9 (2), common
test lead to J4-6 (3).
6-14
-------
Section 6 - Troubleshooting
1297. Check that VOM Indicates
I 00 ohms or I ess. If
not, rep I ace CR9 (I).
Go to step 1303.
1298. Reconnect CR9 to J4-5.
1299. Use VOM to measure OHMS.
Connect positive test
lead to J4-5 (2), common
test lead to S2A-C (3).
1300. Check that VOM Indicates
less than 5 ohms. If
not, repair or replace
wiring and connectors as
necessary; go to step
1303.
1301. Replace Alarm and Valve
Control Card (4). Go to
step 1303.
1302. Replace AC Current
Regulator (5).
1303. Reconnect plug.
1304. Go to step I.
1305. Set the POWER switch to
OFF.
1306. Disconnect AC power from
mon t tor.
6-142
-------
Section 6 - Troubleshooting
1307. If you are servicing a
MOD C monitor, go to
step 1317. If not, go
to next step.
1308. Disconnect Rl (6) from
TP3-I.
1309. Use VON! to measure OHMS.
Connect positive test
lead to Rl (6), common
test lead to Rl (7).
1310. Check that VOV indicates
between 950 and I.IK
ohms. If not, replace
Rl (8). Go to step I .
6-143
-------
Section 6 - Troubleshooting
311. Reconnect Rl to TP3-I.
312. Disconnect R2 (6) from
TP3-3.
1313. Use VOM to measure OHMS.
Connect positive test
lead to R2 (6), common
test lead to R2 (4).
1314. Check that VOM indicates
between 950K and I . IM
ohms. If not, replace
R2 (5). Go to step I .
6-1 44
-------
Section 6 - Troubleshooting
1315. Reconnect R2 to TP3-3.
1316. Repair or replace wiring
and connectors as
necessary. Go to step
1317. Disconnect R34 (2) from
TP6-9.
1318. Use VOM to measure OHMS.
Connect positive test
lead to R34 (2), common
test lead to R34 (I).
1319. Check that VOM Indicates
between 95 and 105 ohms.
If not, rep I ace R34
(3). Go to step I .
1320. Reconnect R34 to TP6-9.
1321. Disconnect Rl (7) from
TP7-IO.
1322. Use VOM to measure OHMS.
Connect positive test
lead to Rl ,(9), common
test lead to Rl (7).
1323. Check that VOM Indicates
between 950 and I.IK
ohms. If not, replace
Rl (8). Go to step I.
1324. Reconnect Rl to TP7-IO.
1325. Disconnect R2 (10) from
TP7-8.
8
6-145
-------
Section 6 - TroubIeshooti
ng
1326.
327.
1328.
1329
330,
Use VOM to measure OHMS.
Connect positive test
lead to R2 (4), common
test lead to R2 (6).
Check that VOM Indicates
between 95K and IIOK
ohms. If not, replace
R2 (5). Go to step I .
Disconnect R33 (7) from
TP7-8.
Use VOM to measure OHMS.
Connect positive test
lead to R33 (7), common
test lead to R33 (6).
Check that VOM indicates
between 950K and I , I M
ohms. If not, replace
R3 (I ). Go to step I .
1331. Disconnect R22 (3) from
TP7-8.
1332. Use VOM to measure OHMS.
Connect positive test
lead to R22 (3), common
test lead to R22 (6).
1333. Check that VOM Indicates
between 9M and MM ohms.
If not, replace R22
(2). Go to step I .
1334. Reconnect R22 to TP7-8.
1335. Reconnect R33 to TP7-8.
6-146
-------
Section 6 - Troubleshooting
1336.
1337.
1338.
339.
1340.
1341 .
1342.
1343.
Reconnect R2 to TP7-8.
Repair or replace wiring
and connectors as
necessary. Go to step
I .
If you are servicing a
MOD-C monitor, go to
step 1579. If not, go
to next step.
Record ZERO ADJUST
micrometer setting.
Using ZERO ADJUST
micrometer, adjust meter
for 0. If unabIe to
adjust for 0, go to step
1342.
Go to step 80.
Use VOM to measure VDC.
Connect positive test
lead to JI pin 13 (8),
common test Iead to JI
pin 14 (10).
Check that VOM Indicates
between 105 and I 15 VDC.
If not, go to step
1349.
12
1344. Use VOM to measure VDC.
Connect positive test
lead to JI pin 15 (9),
common test lead to Jl
pin 13 (8).
1345. Check that VOM indicates
between 105 and I I 5 VDC.
I f not, go to step
1353.
1346. Interchange Electrometer
AmplIfier PC Beard (II)
with a new one.
1347. Check that 03
CONCENTRATION meter (12)
IndIcates 0 wIth i n I
ml nute. If not, go to
step 1357.
I 348. Go to step I .
1349. Check that VOM
indication was low. If
not, go to step 1364.
6-1 47
-------
Section 6 - Troubleshooting
1350. Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 ( I ),
common test lead to J3
pin 14 (2).
1351. Check that VOK indicates
between 105 and I 15 VDC.
If not, go to step
1369.
1352. Repair or replace wiring
and connectors as
necessary. Go to step
I .
1353,
354
Check that
Indication
not, go to
VOM
was
step
ow .
1377
If
Use VO^ to measure VDC.
Connect positive test
lead to J3 pin 15 (5),
common test lead to J3
pin 13 ( I ).
1355. Check that VOM Indicates
between 105 and I I 5 VDC.
If not, go to step
I 382.
1356. Repair or replace wiring
and connectors as
necessary. Go to step
1357.
1358.
Remove new Electrometer
Amp I i.f ier PC Board (10)
frorr. monitor, reinstall
eld FC Board.
Check that 03
CONCENTRATION meter
needle is pegged left.
If not, go to step 1390,
8
6- I 48
-------
Section 6 - Troubleshooting
1359. Use VOM to measure VDC.
Connect positive test
lead to terminal (8),
common test lead to
term!naI (7).
1360. Check that VOM Indicates
I VDC or less. If not,
go to step 1397.
1361. Use VOM to measure VDC.
Connect positive test
lead to terminal (7),
common test lead to
terminaI (8).
1362. Check that VOM indicates
I VDC or I ess. If not,
go to step 1397-
1363. Replace 03 CONCENTRATION
meter (II). Go to step
I .
1364. set the POWER switch to
OFF.
1365. Disconnect AC power from
mon J tor.
1366. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 10 (3),
common test lead to J3
pin 14 (4).
1367. Check that VOM Indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
1368. Replace MOV Regulator
P.C. Board (9). Go to
step I .
1369. Set the POWER switch to
OFF.
1370. Disconnect AC power from
monI tor.
1371. Remove Electrometer
Amp I Ifler P.C. Board
(10).
1372. Connect AC power to
mon i tor.
1373. Set the POWER switch to
ON.
1374. Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 (I),
common test lead to J3
pin 14 (6).
1375. Check that VOM indicates
between 105 and I 15 VDC.
If not, go to step
1435.
X^—^v OZONE MONITOR CAUBRAT
tTHVLCNE
1
O
I
j^
'.
j
u
03 CONCENTRATION
M *,
0 * *'^
\
0
ZERO
AMBIENT I
« j , 1
^ — vJL/ i \ i
i "^ 01_?/^~\\ , fy"^^
FULL SCALE liOOE
RANGE SELECTOR SELECTOR
10 SEC II H
1 1 ISEC | 40 SEC —
PULL TO SAMPLE _V"T-^ I
TEST PLUS l/£\\ /~~\
1 ET"TENE (o) (o) ^^ Y
(£>} C) CALIBRATE K»0 COtCTMlT POWIH
^ - » AOJt^T ADJUST SELECTOR
11
\J
6-149
-------
Section 6 - Troubleshooting
1376. Replace Electrometer
Amp I If i er P.C. Board
(2). Go to step I.
1377. Set the POWER switch to
OFF.
1378. Disconnect AC power from
mon1 tor.
1379. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 9 (5),
common test lead to J3
pin 15 (6).
1380. Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
6-1 50
-------
Section 6 - Troubleshooting
1381. Replace MOV Regulator
P.C. Board (I). Go to
step I .
1382. Set the POWER switch to
OFF.
1383. Disconnect AC power from
mon i tor.
1384. Remove Electrometer
Amp Ii f i er P.C. Board
(2).
1385. Connect AC power to
mon i tor-
1386. Set the POWER switch to
ON.
1387. Use VOM to measure VDC.
Connect positive test
lead to J3 pin 15 (6) ,
common test lead to J3
pin 13 (7).
1388. Check that VOM indicates
between 105 and I I 5 VDC.
If not, go to step
1446.
1389. Replace Electrometer
Amp I If ier P.C. Board
(2). Go to step I .
1390. Check that ultraviolet
lamp (4) Is not lit. If
I It, go to step 1457.
1391. Disconnect SAMPLE INLET
(8) and check that 03
CONCENTRATION meter
IndI cat ion Is
uneffected. I f
effected, go to step
1457.
1392. Disconnect P7 (3) from
detector ceI I.
I 393. Check that 03
CONCENTRATION meter (9)
i nd i cates 0 w i thIn I
m i nute. If not, go to
step 1395.
1394. Next, Replace Detector
Cell 'Assembly, procedure
beg Ins at page 7-2 I
Go on to step I when
f I n i shed .
1395. Reconnect P7 to detector
eel I .
1396. Go to step 1359.
OZONE MONITOR
03 CONCENTRATION
CALIBRATE
ZERC
MB1ENT 1
o
PULL TO SAMPLE
TEST PLUS
I ETMYlENE
O
CALIBRATE
ADJUST
ZERO
ADJUST
FULL SCALE UOOE
RAMGE SELECTOR SELECTOR
10 SEC
1SEC | 40SEC
TtUE |
CONSTANT POWER
SELECTOR
6-15
-------
Section 6 Troubleshooting
397. Use VOM to measure VDC.
Connect positive test
lead to potentiometer
terminal (2), common
test lead to
potentiometer terminal
(I ).
1398. Check that VOM indicates
between 105 and I 15 VDC.
If not, repa i r or
rep I ace wiring and
connectors as necessary;
go to step I .
1399.
1400.
1401.
1402.
1403.
1404
Set the POWER switch to
OFF.
Disconnect AC power from
mon i tor.
Disconnect and taa lead
(7).
Disconnect and taa lead
(6)
Disconnect and taa lead
(8).
Use VOM to measure OH^S.
Connect positive test
Iead to termi neI (7),
common test lead to
term}naI (6).
Check that VOM Indicates
between 95 and TOOK
ohms. If not, go to
step 2491.
6- 152
-------
Section 6 - Troubleshooting
I 406.
407
408
Use VOM to measure OHMS.
Connect positive test
lead to terminal (8),
common test lead to
terminal (7).
Check that VOM Indicates
5 ohms or less. If not,
go to step 2490.
Use VOM to measure OHM.
Connect positive test
lead to terminal (8),
common test lead to
term!nal (6).
1409.
Check that VOM
between 95 and
ohms. If not,
step 2490.
i ndIcates
I05K
go to
1410. Reconnect wire to
term InaI (7).
1411. Reconnect wire to
term!naI (6).
1412. Reconnect wire to
terrrl na I ( 8).
1413. Use VOM to measure OHMS.
Connect positive test
lead to terminal (5),
common test lead to
terminal (3).
1414. Check that VOM Indicates
between .9 and I.IM
ohms. If not, replace
resistor RI2 (4). Go to
step I.
6-153
-------
Section 6 - Troubleshooting
1415.
1416
Use VOM to measure OHMS.
Connect positive test
lead to terminal (4),
common test lead to
term!naI (3).
Check that VOM Indicates
between 9.5 and 10.5K
ohms. If not, replace
resistor Rl5 (5). Go to
step I.
1417.
DIsconnect'wlre
term!naI (II).
from
NOTE
In the next step a very
large resistance Is to
be measured. This
resistance Is beyond the
range of most VOMS.
Consider the check good
If the Indication Is as
high as the VOM wl I I
I ndIcate.
1418. Use VOM to measure OHMS.
Connect positive test
Iead to term!naI (II),
common test lead to
terminal (12).
1419. Check that VOM Indicates
inf I nIty. If not, QO to
step 1430.
1420
Reconnect wire to
terminal (II).
Disconnect resistor lead
( I ) from term!naI.
10
6- I 54
-------
Section 6 - Troubleshooting
1422. use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
term!naI (7).
1423. Check that VOM Indicates
between 15 and 25M ohms.
If not, rep I ace
resistor R22 (10). Go
to step I.
1424. Reconnect resistor lead
to terminal (2).
1425. Disconnect resistor lead
(8) from termi naI.
1426. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(8), common test lead to
terminal (7).
1427. Check that VOM indicates
between .9 and I. IM
ohms. If not, replace
resistor R4 (9). Go to
step I .
1428. Reconnect resistor lead
to termi no I (6).
1429. Repair or replace wiring
and connectors as
necessary. .Go to step
1430. Remove P.C. board shield
(14).
1431. Replace resistor RI8
(13).
1432. ReinstalI P.C. board
sh i e I d.
1433. Reconnect wire to
terminal (II).
1434. GO to step I. 12
13
u u
6-155
-------
Section 6 - Troubleshooting
1435. Reinstall Electrometer
Amp I i f ier P.C. Board.
I 436
437
1438
Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 (5),
common test lead to J3
pin 2 (I ).
Check that VOM indicates
I 20 VDC or more. If
not, go to step 1475.
Set the POWER switch to
OFF.
1439. Disconnect AC power from
monI tor.
1440. Remove MOV Regulator
P.C. Board (6).
1441. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (4),
common test lead to J3
pin 13 (5).
1442. Check that VOM indicates
40K ohms or more. If
not, go to step 1483.
1443. Use VOM tc measure OHMS.
Connect positive test
Iead to J3 pin 14 (4 ) ,
common test lead to J3
pin 15 (3).
1444. Check that VOM indicates
50K ohms or more. If
not, go to step 1490.
1445. Replace I I 0V Regulator
P.C. Board (6). Go to
step I .
1446. Reinstall Electrometer
Amp I i fIer P.C. Board.
1447. Use VOM to measure VDC.
Connect positive test
lead to J3 pin I (2),
common test lead to J3
pin 13 (5).
1448. Check that VOM indicates
120 VDC or more. If
not, go to step I 497.
1449. Set the POWER switch to
OFF.
1450. Disconnect AC power from
mon i tor.
6-1 56
-------
Section 6 - Troubleshooting
1451. Remove MOV Regulator
P.C. Board (6).
1452. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 15 (3),
common test lead to J3
pin 13 (5).
1453. Check that VOM indicates
20K ohms or more. I f
not, go to step 1505.
1454. Use VOM to measure OHM.
Connect positive test
lead to J3 pin 15 (3),
common test lead to J3
pin 14 (4 ).
1455. Check that VOM Indicates
50K ohms cr more. If
not, go to step 1513.
1456. Replace MOV Regulator
P.C. Board (6). Go to
step I .
1457. Set the POWER switch to
OFF.
1458. Disconnect AC power from
mon!tor.
1459. Use VOM to measure OHMS.
Connect positive test
lead to switch terminal
(7), common test lead to
swi tch term!naI (8).
1460. Check that VOM indicates
50K ohms or more. If
not, go to step 1520.
6- I 57
-------
Section 6 - Troubleshooting
1461. Disconnect triac lead
(6) from switch
term!naI.
1462. Connect AC power to
monItor-
1463. Set the POWER switch to
ON.
1464. Check that ultraviolet
lamp (8) Is not I It. I f
lit, go to step 1466.
1465. Replace trlac (5). Go
to step I.
1466. Reconnect trlac lead to
swItch termlnaI (7).
1467. Repair or replace wiring
and connectors as
necessary. Go to step
6-1 58
-------
Section 6 - TroubIeshbbting
466.
1469.
1470.
1471 .
1472.
1473.
Use VOM to measure VAC.
Connect positive test
lead to switch terminal
(2), common test lead to
swi tch term!naI (I).
Check that VOM indicates
20 VAC or more. If not,
go to step 1526.
Set the POWER switch to
OFF.
Disconnect AC power frorr,
mon i tor.
Use VOM to measure OHMS.
Connect positive test
lead to switch terminal
(3), common test lead to
sw i tch term!naI (2).
1474. Replace triac (4).
to step I.
Go
Check that VOM
between .8 and
ohms. If not,
step 1529.
I ndIcates
I .2K
go to
1475. Set the POWER switch to
OFF.
1476. Disconnect AC power from
monI tor.
1477 Remove IICV Regulator
P.C. Board (9).
1478. Connect AC power to
monI tor.
1479. Set the POWER switch to
OFF.
1480. Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 (II),
common test lead to J3
pin 2 (10).
1481. Check that VOM, indicates
120 VDC or more. If
not, go.to step 1534.
6-1 59
-------
Section 6 - Troubleshooting
482,
483,
1484
485
486
487
Replace MOV Regulator
P.C. Board (8). Go to
step I .
Remove Electrometer
Amp I 1fIer P.C. Board
(9).
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (3),
common test lead to J3
pi n I (2).
Check that VOM indicates
IM ohms or more. I f
not, repair or replace
wiring and -connectors as
necessary; go to step
1487.
Replace Electrometer
Amp I i f i er P.C. Board
(9). Go to step 1488.
Reinstall Electrometer
Amp I i fler P.C. Board.
1490. Remove Electrometer
Amp I I f ier- P.C. Board
(9).
1491. Use VOM to measure OHM.
Connect positive test
lead to J3 pin 14 (3),
common test lead to J3
pin 15 (4).
1492. Check that VOM indicates
IM ohms or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
1494.
1493. Replace Electrometer
Amp Ii f ier P.C. Board
(9). Go to step 1495.
Reinstall MOV Regulator
P.C. Board.
1489. Go to step I.
6- 160
-------
Section 6 - Troubleshooting
1494. Reinstall Electrometer
Amp I If ier P.C. Board.
1495. Reinstall MOV Regulator
P.C. Board.
1496. Go to step I .
1497. Set the POWER switch to
OFF.
1498. Disconnect AC power from
mon i tor -
1499. Remove MOV Regulator
p.C. Board (8).
1500. Connect AC power to
mon1 tor.
1501. Set the POWER switch to
ON.
1502. Use VOM to measureVDC.
Connect positive test
lead to J3 pin I (2),
common test lead to J3
pin 13 (I ).
1503. Check that VOM indicates
I 20 VDC or more. If
not, go to step I 541 .
1504. Replace MOV Regulator
P.C. Board (8). Go to
step I .
1505. Use VOM to measure OHMS.
Connect positive test
lead to JI pin 15 (5),
common test lead to
term!naI (7 ).
1506. Check that VOM Indicates
2.5K ohms or more. If
not, replace resistor
RI6 (6). Go to step
1511.
1507. Remove Electrometer
Amp I Tf ier P.C. Board
(9).
1508. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 15 (4),
common test lead to J3
pin 13 (I ).
1509. Check that VOM indicates
20K ohms or more. If
not, go to step 1544.
1510. Replace Electrometer
Amplifier P.C. Board
(9).
1511. Reinstall MOV Regulator
P.C. Board.
1512. Go to step I .
1513. Remove Electrometer
Amp I i f ier P.C. Board
(9).
6-161
-------
Section 6 - Troubleshooting
1514. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (I),
common test lead to J3
pin 15 (2).
1515. Check that VOM indicates
IM ohms or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
1517.
1516. Replace Electrometer
Amp I i f i er P.C. Board
(5). Go to step 1518.
1517. Reinstall Electrometer
Amplifier P.C. Board.
1518. Reinstall MOV Regulator
P.C. Board.
1519. Go to step I .
1520. Disconnect wire from
sw i tch term!naI (13).
1521. Use VOM to measure OHMS.
Connect positive test
lead to switch terminal
(13), common test lead
to switch terminal (12).
1522. Check that VOM indicates
IOOK ohms or more. If
not, replace MODE SELECT
sw i tch ( I I ).. Go to step
I .
1523. Repair or replace wiring
and connectors as
necessary.
1524. Reconnect wire to switch
term i naI (13).
I 525. Go to step I.
6-162
-------
Section 6 - Troubleshooting
526.
527
528
1529,
530.
Use VOM to measure VAC.
Connect positive test
lead to terminal (4),
common test lead to
term i naI (3).
Check that VOM indicates
I 00 VAC or more. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
153
Replace Selector
Solenoi d VaIve (6)
to step I.
Go
Use VOM to measure OHMS.
Connect positive test
lead to switch terminal
(10), common test lead
to switch terminal (7).
Check that VOM indicates
between .8 and I.2K
ohms. If not, replace
resistor R20 (9). Go to
step
12
1.532
Use VOV to measure OHMS.
Connect positive test
lead to switch terminal
(7), common test lead to
swItch termi naI (8).
Check that VOM indicates
5 ohms or less. If not,
replace MODE SELECT
sw i tch (II). Go to step
6
6-163
-------
Section 6 - Troubleshooting
1533.
534.
1535.
I 536.
537
538
I 539
Repair or replace wiring
and connectors as
necessary. Go to step
Use VOM to measure VAC.
Connect positive test
Iead to term!naI (5),
common test lead to
term!naI (6 ).
1541 .
Use VOM to measure VDC
Connect positive test
Iead to term i naI (9) ,
common test lead to
termi naI (5 ) .
Check that VOM
100 VAC or more
not, go to step
nd i cates
If
1548.
1542.
1543.
Check that
120 VDC or
not, go to
VOM indicates
more. If
step I 561 .
Repair or replace wiring
and connectors as
necessary. Go to step
1570.
Use VOM to measure VDC.
Connect positive test
lead to terminal (5),
common test lead to
termi naI (8).
Check that VOM Indicates
120 VDC or more. If
not, go to step 1551.
Repair or replace wiring
and connectors as
necessary.
Reinstall I I 0V Regulator
p.C. Board.
544.
1545.
Disconnect P6
detector ceI I
(14) from
546.
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 15 (2),
common test lead to J3
pin 13 (I ).
Check that VOM Indicates
20K ohms or more. If
not, go to step I 570.
9 10
13
1540. Go to step I.
6- I 64
-------
Section 6 Troubleshooting
1547. Next, Replace Detector
Cell Assembly, procedure
begi ns at page 7-21 .
Co on to step 1577 when
f i n i shed .
1548. use VOM to measure VAC.
Connect positive test
lead to terminal (4),
common test lead to
term InaI (3 ).
1549. Check that VOM Indicates
100 VAC or more. I f
not, go to step 1538.
1550. Replace transformer
(15). Go to step 1539.
1551. Set the POWER switch to
OFF.
1552. Disconnect AC power from
mon i tor.
1553. Disconnect diode lead
(II) f rom terminal.
1554. Use VOM to measure OHMS.
Connect positive test
Iead to di ode Iead (II),
common test lead to
term!naI (6 ) .
1555. Check that VOM indicates
20 ohms or less. If
not, replace diode CRI
(7). Go to step 1539.
1556. Use VOM to measure OHMS.
Connect positive test
Iead to term i na I (6 ) ,
common test lead to
diode lead (II).
1557. Check that VOM Indicates
IOOK ohms or more. If
not, replace diode CRI
(7). Go to step 1539.
1558. Rep-l ace capacitor C6
(13).
1559. Reconnect diode lead to
term InaI (8).
1560. Go to step 1539.
1561. Set the POWER switch to
OFF.
1562. Disconnect AC power from
mon i tor.
1563. Disconnect diode lead
(10) f rom term i naI .
1564. use VOM to measure OHN'S.
Connect positive test
Iead to term i naI (6),
common test lead to
diode Iead (10).
1565. Check that VOM indicates
20 ohms or less. If
not, replace diode CR2
(12). Go to
u u
6-165
-------
Section 6 - Troubleshooting
1566. Use VON' to measure OHMS.
Connect positive test
lead to diode lead (6),
common test lead to
term i naI (4).
1567. Check that VOM indicates
IOOK ohms or more. If
not, replace diode CR2
(7). Go to step I 570 .
1566. Replace capacitor C7
( I ).
1569. Reconnect diode lead to
term i naI (5),
1570. Reinstall MOV Regulator
P.C. Bpard.
1571. Go to step I .
1572. Disconnect wire (8) from
potent i ometer.
1573. Use VOM tc measure OHMS.
Connect positive test
lead to J3 pin 15 (3),
common test lead to J3
pin 13 (2).
1574. Check that VOM Indicates
35K ohms cr more. If
not, repair or replace
wiring and connectors as
necessary; go to step
I 576.
6- 166
-------
Section 6 - Troubleshooting
1575. Replace Potentiometer
RI7 (9).
1576. Reinstall Electrometer
Amp I Ifler P.C. Board.
1577. Reinstall MOV Regulator
P.C. Board.
I 578. Go to step I .
1579. Record ZERO ADJUST
micrometer setting.
1580. Using ZERO ADJUST
micrometer, adjust meter
for 0. If unabIe to
adjust for 0, go to step
I 582.
I 581. Go to step 38.
1582. Use VOM to measure VDC.
Connect positive test
lead to Jl pin 13 (12),
common test lead to Jl
pin 14 (II).
1583. Check that VOM Indicates
between 105 and I I 5 VDC.
I f not, go to step
1591 .
1584. Use VOM to measure VDC.
Connect positive test
lead to JI pin 15 (10),
common test Iead to JI
pin 13 (12).
1585. Check that VOM indicates
between 105 and I I 5 VDC.
If not, qo to step
1595.
1586. Remove cover (13).
6- I 67
-------
Section 6 - Troubleshooting
1587. Interchange Electrometer
Amp I Ifier PC Board (2)
with a new one.
1588. Check that 03
CONCENTRATION meter ( I ^
IndIcates 0 wlthIn I
mi nute. If not, go to
step 1599.
I 589. Go to step I.
1590. Reinstall cover.
I 591. Check that VOM
Indication was low. If
not, go to step 1607.
1592. Use VOM to measure VDC.
Connect positive test
lead to J3 pIn 13(3),
common test lead to J3
pin 14 (5).
1593. Check that VOM Indicates
between I 05 and I I 5 VDC.
If not, go to step
1612.
1594. Repair or replace wiring
and connectors as
necessary. Go to step
1595. Check that VOM
I ndI cat I on was low. If
not, go to step 1623.
I596« Use VOM to measure VDC.
Connect positive test
Iead to J3 pin 15 (4),
common test lead to J3
pin 13 (3).
1597. Check that VOM Indicates
between 105 and I 15 VDC.
If not, go to step
1631 .
1598. Repair or replace wiring
and connectors as
necessary. Go to step
o
*Al
©
\
6- 168
-------
Section 6 - Troubleshooting
1599. Remove new Electrometer
Amp I i f ier PC Board (2)
from monitor, reinstall
old PC Board.
I 600. Rei nstaI I cover.
1601. Check that 03
CONCENTRATION meter
needle is pegged left.
I f not, go to step 1642.
1602. Use VOM to measure VDC.
Connect positive test
Iead to terminal ( 6) ,
common test lead to
te rm i naI (7).
1603. Check that VOM indicates
I VDC or less. If not,
go to step 1649.
1604. Use VOM to measure VDC.
Connect positive test
lead to terminal (7 ) ,
common test lead to
terminal (6).
1605. Check that VCM indicates
I VDC or I ess. If not,
go to step 1649.
1606. Replace 02 CONCENTRATION
meter (I). Go to step
I .
1607. Set the POWER switch to
OFF.
1606. Disconnect AC power f rorr.
mon ? tor -
6- I 69
-------
Section 6 Troubleshooting
1609. Use VOM to measure OHN'S.
Connect positive test
lead to J3 pin 1C (5),
common test lead to J3
pin 14 (3) .
1610. Check that VOM indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
1611. Replace MOV Regulator
P.C. Board (7). Co to
step I .
1612. Set the POWER switch to
OFF.
1613. Disconnect AC power from
mon i tor.
1614. Remove cover (8).
1615. Remove Electrometer
Amp I i f i e r P.C. Board
(6) .
1616. Connect AC power to
mon i to r.
6 I 7
1616. Use VOM tc measure VDC.
Connect positive test
Iead to J 3 pin 13 (4),
common test lead to J3
pin 14(3).
1619. Check that VOM indicates
between IC5 and I I 5 VDC.
I f not, gc to step
1687.
1620. Replace Electrometer
Amp I i fler P.C. Board
(6) .
1621. Rei nstaI I cover.
I 622. Co to step I .
1623. Set the POWER switch to
OFF.
1624. Disconnect AC power from
mon i to r .
4 5
Set the POWER switch to
ON.
\
6- I 70
-------
>ect i c~ t - T rout ! L ",'•;.:• i r r
l£?5. Use VOV to measure OHMS.
Connect positive test
lead to J3 pin 9 (i),
common test lead to J3
pin \1 (2).
1626. Check that VON' indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
1627. Remove cover (8).
1626. Replace IICV Regulator
P.C. Board (7).' Go to
step I .
1629. Reinstall cover.
1630. Go to step I.
1631. Set the POWER switch to
OFF.
1632. Disconnect PC power from
men i tor.
1633. Remove cc-ver '.6).
1634. Renovo \. I ect » ~re * e -
Amplifier r . C. :••:.-)' c
( 6 ) . '
1635. Connect AC pcwe^ *o
men i tor .
1636. Set the PCWf- R switch to
1637. Use VOr tc measure VL'C.
Connect positive test
lead to J3 cin \ ^ (2),
common test leaci TO J5
pin 13 (4) .
1636. Check that VON' indicates
between 105 and 115 VDC .
I f not , pc to step
I70C.
1639. Replace Electrometer
/»mp I i f i er P.C. Board
(6) .
1640. Reinstall cover.
1641. Co to step I .
6-171
-------
Section 6 - Troubleshooting
1642
1643
1644.
645.
646
1647.
Check that ultraviolet
I amp ( 4 ) is not lit. If
lit, go to step 1715.
Disconnect SAMPLE INLET
( I ) and check that 03
CONCENTRATION meter
i nd i cat Ion Is
unef f ected . I f
effected, go to step
1715.
Disconnect P7 (3) from
detector ce I I .
Check that 03
CONCENTRATION meter (5)
i nd i cates 0 within I
minute. If not, go to
step 1647.
Next, Replace Detector
Cell Assembly, procedure
beg i ns at page 7-21
Go on to step I when
finished.
Reconnect P7 to detector
eel I .
1648. Go to step 1602.
1649. Use VOM tc measure VOC.
Connect positive test
lead to potentiometer
terrr i na I ( 7 ) , common.
test Iead to
potentiometer terminal
(6) .
1650. Check that VOM indicates
between 105 and I I 5 VDC.
If not, repa i r or
replace wirinq and
connectors as necessary;
go to step I.
6-I 72
-------
Section 6 - Troubleshooting
1651. Set the POWER switch to
OFF.
1652. Disconnect AC power from
mon i tor.
1653. Disconnect and tag lead
(9).
1654. Disconnect and tag lead
(8).
1655. Disconnect and tag lead
(2).
1656. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(9), common test lead to
res I stor Iead (8).
1657. Check that VOM indicates
between 95 and IOOK
ohms. If not, go to
step 2491.
1658. Use VOM to measure OHMS.
Connect positive test
lead to terminal (2),
common test lead to
terrr I na I (9) .
1659. Check that VOM indicates
5 ohms or less. If not,
go to step 2490.
o
©
O
6-173
-------
Section 6 - Troubleshooting
1660. Use VOM to measure OHMS.
Connect positive test
Iead to term!naI ( I ),
common test lead to
term!naI (2).
1661. Check that VOM indicates
between 95 and I05K
ohms. If not, go to
step 2490.
1662. Reconnect wire to
te rm i naI (3).
1663. Reconnect wire to
term!naI (2) .
1664. Reconnect wire to
term!naI (I ).
1665. Use VOM to measure OHMS.
Connect positive test
Iead to termlnaI (6),
common test lead to
term!naI (4 ).
1666. Check that VOM indicates
between .9 and I.IM
ohms. If not, replace
res i stor Rl2 (5). Go to
step I.
667
1668
Use VOM to measure OHMS.
Connect positive test
I ead to termi na I (7 ) ,
common test lead to
termi na I (8) .
Check that VOM Indicates
between 9.5 and 10. 5K
ohms. If not, replace
resistor RI5 (9). Go to
step I .
6- I 74
-------
Section 6 - Troubleshooting
669. Disconnect wire from
term i naI (II).
NOTE
In the next step a very
large resistance Is to
be measured. This
resistance Is beyond the
range of most VOMS.
Consider the check good
if the indication is as
high as the VCW will
i nd 5 cate.
1670. Use VON1 to measure OHMS.
Connect positive test
Iead to termi naI (II),
comiron test lead to
termi naI (10).
1671. Check that VCW indicates
Infinity. If not, go to
step 1682.
1672. Reconnect wire to
termi na I (II).
6-1 75
-------
Section 6 - Troubleshooting
1673. Disconnect resistor lead
(2) from term! na I .
1674. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(2), common test lead to
term!naI (5).
1675. Check that VOM Indicates
between 15 and 25M ohms.
If not, rep I ace
resistor.R22 (3). Go to
step I.
1676. Reconnect resistor
Iead to term I naI (4 ) .
6- 176
-------
Section 6 - Troubleshooting
1677.
678
1679,
1680,
Disconnect resistor lead
(7) from termlnaI.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
termlnaI (5).
Check that VOK Indicates
between .9 and I . IM
ohms. If not, replace
res Istor R4 (I). Go to
step I .
Reconnect resistor
to termlnaI (6).
I ead
1681. Repair or replace wlrlno
and connectors as
necessary. Go to step
1682. Remove P.C. board shield
(8).
1683. Replace resistor RI8
(10).
1684. Reinstall P.C. board
shield.
1685. Reconnect wire to
termlnaI (9).
1686. Go to step I.
1687. Reinstall Electrometer
Amplifier P.C. Board.
6-177
-------
Section 6 - Troubleshooting
1688. Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 (4),
common test lead to J3
pin 2 (5).
1669. Check that VON' indicates
I 20 VDC or more. If
not, go to step 1734.
1690.
1691 .
1692.
1693.
1594.
1695.
1696.
Set the POWER switch to
OFF.
Disconnect AC power from
mon i tor.
Remove I 10V Regulator
P.C. Board (6)"."
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (3),
common test lead to J3
pin 13 (4).
Check that VOV indicates
40K ohms or more. If
not, go to step I 744.
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (3) ,
common test lead to J3
pin 15 (2) .
Check that VOM indicates
50K ohms or more. If
not, go to step 1752.
Replace MOV Regulator
P.C. Board (6).
6-1 78
-------
Section 6 - Troubleshooting
1698. Reinstall cover.
I 699. Go to step I.
1700. Set the POWER switch to
OFF.
1701. Reinstall Electrometer
Amp Ii fler P.C. Board.
1702. Set the POWER switch to
ON.
1703. Use VOM to measure VDC.
Connect positive test
lead to J3 pi n I (I),
common test lead to J3
pin 13 (4).
1704. Check that VOM Indicates
I 20 VDC or more. If
not, go to step 1760.
1705. Set the POWER switch to
OFF.
1706. Disconnect AC power from
mon i tor.
1707. Remove MOV Regulator
P.C. Board (6).
1708. Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 15 (2),
common test lead to J3
pin 13 (4).
1709. Check that VOM indicates
20K ohms or more. If *
not, go to step 1770.
1710. Use VOM to measure OHMS.
Connect positive test
lead to J3 pi n 15 (2),
common test lead to J3
pin 14 (3).
1711. Check that VOM Indicates
50K ohms or more. If
not, go to step 1779.
1712. Replace MOV Regulator
P.C. Board (6).
6-1 79
-------
Section 6 - TroubIeshcotinc
1713. Reinstall cover.
1714. Go to step I .
1715. Remove cover (I).
1716. Remove Alarm and Valve
Control P.C. Board (2).
1717. Use VOM to measure VAC.
Connect positive test
lead to J4 pin' 2 (8),
common test lead to
termi naI (4).
1718. Check that VOI/ indicates
5 VAC or less. If not,
replace Alarm and Valve
Control P.C. Board (2).
Go to step 1721.
1719. Repair or replace wiring
and connectors as
necessa ry.
1720. Reinstall Alarm and
Valve Control P.C.
Board.
1721. Reinstall cover.
1722. Co to step I .
1723. Use VOV to measure VAC.
Connect positive test
lead to- J4 pin 3 (7) ,
common test lead to
term i naI (4).
1724. Check that VON" indicates
100 VAC or more. If
not, go to step 1728.
u \J
6- I 80
-------
Section 6 - Troubleshooting
1725. Use VOM to measure VAC.
Connect positive test
I ead to term!naI (5),
common test lead to
term? naI (6).
1726. Check that VOM Indicates
I 00 VAC or more. If
not, repair or replace
wiring and connectors as
necessary; go to step I.
1727. Replace Selector
Solenoid Valve (3). Go
to step I.
6-181
-------
Section 6 - Troubleshooting
1728. Use VOM to measure VDC.
Connect positive test
Iead to J4 pin 6 (2),
common test lead to J4
pin 13 (3).
1729. Check that VOM Indicates
I 0 VDC or more. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
1730.
1731 .
1732.
1733.
1734.
1735.
1736.
1737.
738.
739.
Remove cover (II).
Replace Alarm and Valve
Control P.C. Board (10).
Re InstaI I cover.
Go to step I .
Set the POWER switch to
OFF.
Disconnect AC power from
monI tor.
Remove MOV Regulator
P.C. Board (9).
Connect AC power to
mon itor.
Set the POWER switch to
OFF.
Use VOM to measure VDC.
Connect positive test
lead to J3 pin 13 (6),
common test lead to J3
pin 2 (7).
Check that VOM indicates
120 VDC or more. If
not, go to step 1787.
6- I 82
-------
Section 6 - Troubleshooting
1741 .
1742.
1743.
1744.
1745.
I 746.
1747
Replace MOV Regulator
P.C. Board (9).
Re InstaI I cover.
Go to step I .
Remove Electrometer
Amp I If ier P.C. Board
(8) .
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (5),
common test lead to J3
pin I ( I ).
Check that VOW Indicates
IM ohm or more. If not,
repair or replace wiring
and connectors as
necessary; oo to step
1748.
Replace Electrometer
Amp I If ier P.C. Board
(8). Go to step 1749.
1748.
1749.
1750.
1751 .
1752.
1753.
Reinstall Electrometer
Amp I i f i er P.C. Board.
Reinstall MOV Regulator
P.C. Board.
Relnsta
cover.
1754.
Go to step I.
Remove Electrometer
Amp I if ter P.C. Board
(8).
I'se VOM to measure OHMS.
Connect positive test
lead to J3 pin 14 (•>) ,
common test lead to J3
pin 15 (4).
Check that VOM indicates
IM ohms or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
1756.
6-183
-------
Section 6 - Troubleshooting
1755. Replace Electrometer
Amp IIf ier P.C. Board
(I). Go to step 1757.
1756. Reinstall Electrometer
Amp I If ier P.C. Board.
1757. Reinstall MOV Regulator
P.C. Board.
I 758. Reinstal I cover.
I 759. Go to step I.
1760. Set the POWER switch to
OFF.
1761. Disconnect AC power from
mon i tor.
1762. Remove MOV Regulator
P.C. Board (2).
1763. Connect AC power to
mon i tor.
1764. Set the POWER switch to
ON.
1765. Use VOM to measure VDC.
Connect positive test
lead to J3 pi n I (5),
common test lead to J3
pin 13 (9).
1766. Check that VOM indicates
120 VDC or more. If
not, go to step 1794.
1767. Replace IIOV Regulator
P.C. Board (2).
I 768. Rei nsta I I cover.
1 769. Go to step I .
1770.
1771.
Use VOIV to measure OHMS.
Connect positive test
lead to J I pin 15 (8) ,
common test lead to
term! na I (4 ) .
Check that VOM Indicates
2.5K ohms or more. If
not, replace resistor
RI6 (3). Go to step
1776.
6- I 84
-------
Section € - TroubIeshootina
1772. Remove Electrometer
Amp Ii fIer P.C. Board
( I ).
1773. Use VOI/ to measure OHMS.
Connect positive test
lead to J 3 pin 15 (7),
common test lead to J3
pin 13 (9).
1774. Check that VOM indicates
20K ohms or more, If
not, go to step 1797.
1775. Replace E I ectrcrretcr
Amp I i f i er r.C. Board
( I ).
1776. Reinstall MOV Regulator
P.C. Board.
1777. Reinstall cover.
I 776. Go to step I.
1779. Remove Electrometer
Amp I i f i er P.C. Board
(I ).
1780. Use VCM tc measure GHVS.
Connect positive test
lead to J3 pin 14 (6),
common test lead to J3
pin 15 (7).
1781
Check that VOV Indicates
IM ohms or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
1783.
7 6
t- I 65
-------
Section 6 - Troubleshooting
1782. Replace Electrometer
Amplifier F.C. Roard
(8). Co to step 1784
1763. Reinstall FIectrcmeter
Am p I i t i e r P. C. Re a r d .
1784. Peinslall IICV Peculator
P.C. Boa re.
|785. PeinstaM COVPT.
e-1 at
-------
Section 6 - Troubleshooting
1786,
1787
788
1789,
1790,
1791
1792
793
Go to step I .
Use VOM to measure VAC.
Connect positive test
Iead to term i naI (5),
common test lead to
term!naI (6).
1794.
Check that VOM
100 VAC or more,
not, go to step
nd i ca + es
I f
1801 .
1795.
1796.
Use VOM to measure VDC.
Connect positive test
Iead to term i naI (3),
common test lead to
termi naI (5 ).
Check that VOM
120 VDC or more
not, go to step
nd i cates
I f
1804.
1797.
798
Repair or replace wiring
and connectors as
necessa ry.
799.
Reinstal I MOV
P.C. Board.
Go to step I .
ReguIator
Use VOM to measure VDC.
Connect positive test
Iead to termi naI (5),
common test lead to
term InaI (4).
Check that
120 VDC or
not, go to
indicates
more. If
step 1814.
Repair or replace wiring
and connectors as
necessary. Go to step
1823 .
Disconnect P6
detector ce I I,
(7) from
Use VOM to measure OHMS.
Connect positive test
lead to J3 pin 15 (2),
common test lead to J3
pin 13 ( I ).
Check that VOM indicates
20K ohms or more. If
not, go to step 1823
u u
6- I 87
-------
Section 6 - Troubleshooting
1800. Next, Replace Detector
Cell Assembly, procedure
beg i ns at step 7-2 I.
Go on to step 1831 when
finished.
1801 .
1802.
803
804
805
Use VOM to measure VAC.
Connect positive test
Iead to term InaI (8) ,
common test lead to
term!naI (2).
Check that VOM indicates
I 00 VAC or more. I f
not, go to step 1791.
Replace transformer (9).
Go to step 1792.
Set the POWER switch to
OFF.
Disconnect AC power from
mon I tor.
Disconnect diode lead
(3) f rom term InaI.
6-1 88
-------
Section 6 - Troubleshooting
807. Use VOM to measure OHMS.
Connect positive test
lead to diode lead (3),
common test lead to
termlnaI (7).
1808. Check that VOM indicates
20 ohms or less. If
not, replace diode CRI
(5). Go to step 1792.
809. Use VOM to measure OHMS.
Connect positive test
Iead to termi naI (7),
common test lead to
d i ode Iead (3 ).
1815. Disconnect AC power from
mon I tor .
1816. Disconnect diode lead
(4) f rom termi naI .
1817. Use VON' to measure OHMS.
Connect positive test
I ead to termi naI (7),
common test lead to
diode lead (8).
1818. Check that VOM indicates
20 ohms or I ess. If
not, replace diode CR2
(6). Go to
1810. Check that VOM Indicates
IOOK ohms or more. If
not, replace diode CRI
(5). Go to step 1792.
I8I| Replace capacitor C6
( I ).
1812. Reconnect diode lead to
term!naI (2 ).
1813. Co to step 1792.
1814. Set the POWER switch to
OFF.
6- I 89
-------
Section 6 - Troubleshooting
1819. Use VOM to measure OHMS.
Connect positive test
lead to diode lead (3),
common test lead to
term i naI (4 ).
1820. Check that VOM indicates
IOOK ohms or more. If
not, replace diode CR2
(5). Go to step 1823 .
1821. Replace capacitor C7
(I ).
1822. Reconnect diode lead to
term i naI (2).
1823. Reinstall MOV Regulator
P.C. Board.
6-1 90
-------
Section € - TroubIeshootino
I 824. RelnstaI I cover.
1825. Go to step I .
1826. Disconnect wire (7) from
potent Iometer-
1827. Use VOM. to measure OHMS.
Connect positive test
lead to J3 pin 15 (9),
common test lead to J3
pin 13 (8).
1828. Check that VOM Indicates
35K ohms or more. I f
not, repair or replace
wiring and connectors as
necessary; go to step
1830.
1829. Replace Potentiometer
RI7 (6).
1830. Reinstall Electrometer
Amplifier P.C. Board.
1831. Reinstall MOV Regulator
P.C. Board.
I 832. Relnstal I cover.
1833. Go to step I.
.--, r44
Pi] rj }i I ! j
i . i | . i
8
6- 191
-------
Section 6 - Troubleshooting
1834.
1835.
1636.
1837.
1838.
1839.
1840.
184 I .
1842.
Set TIME CONSTANT
SELECTOR (I) to I SEC.
Check that 03
CONCENTRATION meter (3)
indicates 0 within 3
seconds. If not, go to
step 1837.
1844.
Replace C4 (5).
step I .
Go to
Set TIME CONSTANT
SELECTOR (I) to 10 SEC.
Using Zero Adjust,
adjust'meter for zero.
If unable to adjust for
zero, go to step 2482.
Co to step 1859.
Using Zero Adjust,
adjust meter for zero.
If unable to adjust for
zero, go to step 2482.
Go to step 1857.
Using Zero Adjust,
adjust meter for zero.
If unable to adjust for
zero, go to step 2482.
1843. Go to step 1855
1845.
1846.
1847.
1848.
1849.
Using Zerc Adjust,
adjust meter fcr zero.
If unable to adjust for
zero, go to step 2482.
Go to step 1853.
Using Zero Adjust,
adjust meter for zero.
If unable to adjust for
zero, go to step 2482.
Go to step 1851.
Using 7erc Adjust,
adjust meter fcr zero.
If unable to adjust for
zero, oo to step 2482.
Set FULL SC/>LE RANGE
SELECTOR switch (4) to
.02 and check that 03
CONCENTRATION meter (3)
Indicates zero. If not,
go to step 2482.
6-1 92
-------
Section 6 - Troubleshooting
853. Set FULL SCALE RANGE
SELECTOR switch (4) to
.I and check that 03
CONCENTRATION meter (3)
indicates zero. If not,
go to step 2482.
1855.
Set FULL SCALE RANGE
SELECTOR switch (4) to
.2 and check that 03
CONCENTRATION meter (3)
Indicates zero. If not,
go to step 2482.
1857. Set FULL SCALE RANGE
SELECTOR switch (4) to
.5 and check th.at 03
CONCENTRATION meter (3)
indicates zero. If not,
go to step 2482.
1859. Set FULL SCALE RANGE
SELECTOR switch (4) to I
and check that 03
CONCENTRATION meter (3)
indicates zero. If not;
go to step 2482.
I860. Go to step 38.
1861. Set FULL SCALE RANGE
SELECTOR switch (4) to
.05 and check that 03
CONCENTRATION meter (3)
indicates zero. If not,
go to step 2482.
1862. Check that 03
CONCENTRATION meter (3)
Indicates between 12 and
20. If net, go to step
1867.
1863. Check that Calibration
Adjust (2) will adjust
03 CONCENTRATION meter
(3) Indication to 16.
If not, go to step 1867.
1864. Set FULL SCALE RANGE
SELECTOR (4) to I.
6-193
-------
Section 6 - Troubleshooting
1865. Check that 03
CONCENTRATION meter (2)
Indicates between 7 and
9. If not, go to step
1867.
1866. Go to step 81 .
1867. Set the POWER switch to
OFF.
1868. Interchange Electrometer
Amp Ii f ier PC Board (3)
with a new one.
1869. Set the POWER'Switch to
ON.
1870. Set FULL SCALE RANGE
SELECTOR (I) to .5.
1871. When 03 CONCENTRATION
meter (2) Indication
stabilizes, check that
meter Indicates between
14 and 18. If not, go to
step 1873.
6-194
-------
Section 6 - Troubleshooting
1872. Go to step
1873.
1878.
Set the POWER switch to
OFF.
1874, Remove new Electrometer
AmplIf ier PC Board (3)
from monitor, reinstall
old PC Board.
1875. Disconnect wire (6) from
FULL SCALE RANGE
SELECTOR switch.
1876. Disconnect wire (4) from
FULL SCALE RANGE
SELECTOR switch.
1877. Set FULL SCALE RANGE
SELECTOR (I) to .5.
1879,
1880,
1881
1882
1883
Use VOM
Connect
lead to
to measure OHMS,
pos i 11ve test
S3 (6)
test lead to S3
common
(4).
Check that VOM Indicates
between 95K and I05K
ohms. If not, go to
step 2482.
Use VON1 to measure OHMS.
Connect positive test
lead to S3 (7), common
test lead to S3 (6).
Check that VOM indicates
between 47.5K and 52.5K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (5). Go
to step I.
Use VOM to measure OHMS.
Connect positive test
lead to S3 (7), common
test lead to S3 (4).
Check that VOM indicates
between 47.5K and 52. 5K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (5). Go
to step I .
6- I 95
-------
Section 6 - Troubleshooting
1884. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
1885. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
1886. Replace Detector Cell
(I), refer to Replace
Detector Cell Assembly;
page 7-2 I .
1887. Go to step I .
1888. Check that 03
CONCENTRATION meter (6)
indicates between .12
and , 2. If net, go to
step I 803 .
1869. Check that Calibration
Adjust (5) will adjust
03 CONCENTRATION meter
(6 ) indication to .1C.
I f not, gc to step I 893.
1890. Set PULL SCAI.F RANGE
StLFCTTF (4) tc I.
e- i 95
-------
Section 6 - Troubleshooting
1891. Check that 03
CONCENTRATION meter (6)
indicates between .07
and .09. If not. go to
step 1893.
1892. Go to step 59.
1893. Set the POWER switch to
OFF.
1894. Remove cover (7).
1895. Interchange Electrometer
Amp Ii f ier PC Board (8)
with a new one.
1896. Set the POWER switch to
ON.
1897. Set FULL SCALE RANGE
SELECTOR (4) to .5.
1898. When 03 CONCENTRATION
meter (6) indication
stabilizes, check that
meter indicates between
.14 and .18. If not, go
to step 1901.
I 899. Rei nstal I cover.
I 900. Go to step I.
1901. Set the POWER switch to
OFF.
1902. Remove new Electrometer
Amp I If ier PC Board (8)
from monitor, reinstall
old PC Board.
I 903. Rei nstaI I cover.
1904. Disconnect wire (3) from
FULL SCALE RANGE
SELECTOR switch.
1905. -Disconnect wire (2) from
FULL SCALE RANGE
SELECTOR switch.
1906. Set FULL SCALE RANGE
SELECTOR (4) to .5.
6- I 97
-------
Section 6 - Troubleshooting
1907.
Use VOM
Connect
lead to
to measure OHMS,
pos i ti ve test
S3 (3)
test lead to S3
common
( I ).
908
I 909
1910
Check that VOM indicates
between 95K and I05K
ohms. If not, go to
step 2482.
Use VOM to measure OHMS.
Connect positive test
lead to S3 (4), common
test lead to S3 (3).
Check.that VOM indicates
between 47.5K and 52.5K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I.
1911. Use VOM to measure OHMS.
Connect positive test
lead to S3 (4), common
test lead to S3 (I).
1912. Check that VOM indicates
between 47.5K and 52.5K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I .
1913. Reconnect wire to FULL
SCALE RANGE SELECTOR
switch.
6-1 98
-------
Section 6 - TroubIeshootino
1914. Reconnect wire to FULL
SCALE RANGE SELECTOR
switch.
1915. Replace Detector Cell
(6), refer to Replace
Detector Cell Assembly;
page 7-21.
1916. Go to step I.
1917. Check that 03
CONCENTRATION meter (8)
indicates between 30 and
50. If not, go to step
1924.
1918. Check that Calibration
Adjust (7) will adjust
03 CONCENTRATION meter
(8) indication to 40.
If not, go to step 1924.
1919. Set FULL SCALE RANGE
SELECTOR (9) to .5.
1920. Check that 03
CONCENTRATION meter (8)
Indicates between 14 and
18. If not go to step
1924.
1921. Set FULL SCALE RANGE
SELECTOR (9) to I.
1922. Check that 03
CONCENTRATION meter (8)
indicates between 7 and
9. If not, go to step
1924.
1923. Go to step 81.
1924. Set the POWER switch to
OFF.
1925. Interchange Electrometer
Amp I If ier PC Board (5)
with a new one.
1926. Set the PCWER switch to
ON.
1927. Set FULL SCALE RANGE
SELECTOR (9) to .2.
1926. When 03 CONCENTRATION
meter (8) indication
stabilizes, check that
meter indicates between
35 and 45. If not, go to
step 1930.
6-1 99
-------
Section 6 - Troubleshooting
I 929. Go to step I.
1930. Set the POWER switch to
OFF.
1931. Remove new Electrometer
Amp I i f ier PC Board (9)
from monitor, reinstall
old PC Board.
1932. Disconnect wire (3) from
FULL SCALE RANGE
SELECTOR switch.
1933. Disconnect wire (I) from
FULL SCALE RANGE
SELECTOR switch.
1934. Set FULL SCALE RANGE
SELECTOR (4) to .2.
1935. Use VOM to measure OHMS.
Connect positive test
lead to S3 (3), common
test lead to S3 ( I ).
1936. Check that VOM indicates
between 95K and I05K
ohms. If not, go to
step 2462.
1937. Use VON1 to measure OHMS.
Connect positive test
lead to S3 (7), common
test lead to S3 (3).
I938. Check that VOM indlc.ates
between 75K and 85K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I .
6-200
-------
Section 6 - Troubleshooting
939.
1940.
1941
Use VOM
Connect
lead to S3 (7),
test lead to S3
to measure OHMS.
positive test
common
( I ).
Check that VOM Indicates
between I 9K and 21 K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I .
Reconnect w
SCALE RANGE
sw i ten.
re to FULL
SELECTOR
1942. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
1943. Replace Detector Cell
(8), refer to Replace
Detector Cell Assembly;
page 7-21.
1944. Go to step I.
1945. Check that 03
CONCENTRATION meter (6)
indicates between .30
and .50. If not, go to
step 1952.
946. Check that Calibration
Adjust (5) will adjust
03 CONCENTRATION meter
(6) Indication to .40.
If not, go to step 1952.
T" ©r (Q) vS
X-\ yZS ^~ X TIMl
( ) >lll!«ATE ZERO CONST*
^^ S AOAST ADJUST aiscn
ANT POWER
ECTOB
OKM MOM TO" ^T
;"""''"_ _r
o
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o
.. ~t
O
e-20 i
-------
Section 6 - Troubleshooting
1947. Set FULL SCALE RANGE
SELECTOR (2) to .5.
I94S. Check that 03
CONCENTRATION meter (I)
indicates between .14
and .18. If not, go to
step 1952.
1949. Set FULL SCALE RANGE
SELECTOR (2) to I.
1950. Check that 03
CONCENTRATION meter (I)
Indicates between .07
and .09. If not, go to
step 1952.
1951 . Go to step 59.
1952. Set the POWER switch to
OFF.
1953. Remove cover (4).
1954. Interchange Electrometer
Amplifier PC Board (3)
w i th a new one.
1955. Set the POWER switch to
ON.
1956. Set FULL SCALE RANGE
SELFCTOR (2) to .2.
1957. When 03 CONCENTRATI ON
meter (I) indication
stabilizes, check that
meter indicates between
.35 and .45. If not, qo
to step I960.
1956. Reinstall cover.
-I
- -Jj
o
>2><2> O
6-202
-------
Section 6 - Trouh I eshcot i rrj
I 959. Go to slep I .
I960.
Set the PCWE'R switch to
OFF .
I96I. Remove new E I ectronr.e te r
Amp I i f i er PC Board (3)
from monitor, reinstall
old PC Board.
I962. Reinstall cover.
I963. Disconnect wire (6) frorr
FULL SCALE RANGE
SELECTOR switch.
I 964. Disconnect wire (5)
FULL SCALF. PANCE
SELECTOR switcr..
I 965. Set FLU r.C.ALF ^A\<~
fELECTOR (2) to .2.
IS6C. (jse VQV 1c measure Ch''5..
Connect positive test
lead to S3 ((•) , common
test Iead to S3 (5},
I9C7. Check that VO?-1 indicates
between 95K and IC5K
ohms. If no*, no tc
step 2462.
\j \J
-------
Section 6 - Troubleshooting
1966. Use VCW tc measure CHN'f..
Connect positive test
lead to S3 (4), coirmon
test lead to S3 (3).
1969. Check that VO^ indicates.
between 75K and 85K
ohrr,s. If not, replace
FULL SCALE R/»NGE
SELECTOR switch (2). Co
to step I.
1970. L'se VO-lv to measure GUN'S.
Connect positive test
lead tc S3 (4), common
test Iead to S3 (I).
1971. Check that VCt/ indicates
between I9K and 21K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I .
1972.
1973.
l 974 .
Reconnect wire to FULL
SCALF RANGE SELLCTOF
sw i ten .
Reconnect wire to FULL
SC/'LF RANGE SFLECTOF
sw 5 tch.
Reniace Detector Col I
(6) , refer to Rep I ace
Detector CeI I AssembIv
pane 7-21.
1975. Go to step I .
e-?C4
-------
Section 6 - Troubleshooting
1976. Check that 03
CONCENTRATION meter (8)
indicates between 65 and
95. If not, go to step
1985.
1977. Check that Calibration
Adjust (7) will adjust
03 CONCENTRATION meter
(8) indication to 80.
If not, go to step 1985.
1978. Set FULL SCALE RANGE
SELECTOR (9) to .2.
1979. Check that 03
CONCENTRATION meter (8)
Indicates between 35 and
45. If not, go to step
1985.
1980. Set FULL SCALE RANGE
SELECTOR (9) to .5.
I 981. Check that 03
CONCENTRATION meter (8)
indicates between 14 and
18. If not, go to step
1985.
1982. Set FULL SCALE RANGE
SELECTOR (9) to I.
8
\
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"*-r^" IT ^1 ' ~" ~
CrHYUMI I* I '» ** *°
A &
of
' 'MLKAU WOOI
I R»*Ct Hl'tTO* HLECIOR
IDMC 11 '—Tl
.«,,,* «
1983. Check that 03
CONCENTRATION meter (8)
indicates between 7 and
9. If not, oo to step
1985.
I 984. Go to step 8 I.
1985. Set the POWER switch to
OFF.
1986. Interchance Electrometer
Ampl i f ier~PC Board (5)
with a new one.
1987. Set the POWER switch to
ON.
1988. Set FULL SCALE RANGE
SELECTOR (9) to .I.
1989. When 03 CONCENTRATION
meter (8) Indication
stabilizes, check that
meter indicates between
70 and 90. If not, go to
step 1991.
1990. Go to step I .
€-205
-------
Section 6 - TroubIeshcotina
1991. Set the POWER switch to
OFF.
1992. Remove new Electrometer
Amp I I tier PC Board (2)
from monitor, reinstall
old PC Board.
1993. Disconnect wire (5) from
FULL SCALE RANGE
SELECTOR switch.
1994. Disconnect wire (3) fronr.
FULL SCALE RANGE
SELECTOR switch.
1995. Set FULL SCALE RANGE
SELECTOR (7) to .I.
1996. Use VOM tc measure OHMS.
Connect positive test
lead to S3 (5), common
test lead to S3 (3).
1997. Check that VOW indicates
between 95K and IC5K
ohms. If not, qo to
step 2482.
1998. use VCM tc measure OHMS.
Connect positive test
lead to S3 (8), common
test lead to S3 (5).
1999. Check that VQM indicates
between 85K and 95K
ohms. If not, rep I ace
FULL SCALE RANGE
SELECTOR switch (4). Go
to step I .
6-206
-------
Section 6 - Troubleshooting
2000. Use VOM to measure OHMS.
Connect positive test
lead to S3 (8), common
test lead to S3 (3).
2001. Check that VCM indicates
between 9.5K and 10.5K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (4). Co
to step I.
2002. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2C03. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch .
2004. Replace Detector Cell
( I ), refer to Rep I ace
Detector Cell Assembly;
pane 7-2 I •
2005. Go to step I.
2006. Check that 03
CONCENTRATION meter (6)
indicates between .65
and .95. If not, go to
step 2015.
r --___ J ..-;--.;:'.,- ,.;?"=• i
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o
©'<§> "o
8
6-207
-------
Section 6 - Troubleshooting
2007. Check that Calibration
Adjust (I) will adjust
03 CONCENTRATION meter
(2) Indication to .8.
If not, go to step 2015,
2008. Set FULL SCALE RANGE
SELECTOR (3) to .2.
2009. Check that 03
CONCENTRATION meter (2)
Indicates between ,35
end .45. If not, go to
step 2015. •
2010.
20
2012,
Set FULL SCALE RANGE
SELECTOR (3) to .5.
Check that 03
CONCENTRATION meter (2)
Indicates between .14
and .18. If not, go to
step 2015.
Set FULL SCALE RANGE
SELECTOR (3) to I.
2013. Check that 03
CONCENTRATION meter (2)
indicates between .07
and .09. If not, go to
step 2015.
2014. Go to step 59.
2015. Set the POWER switch to
OFF.
2016. Remove cover (5).
6-208
-------
Section 6 - TroubIeshoot1nc
2017. Interchange Electrometer
Amp I Ifler PC Board (4)
with a new one.
2018. Set the POWER switch to
ON.
2019. Set FULL SCALE RANGE
SELECTOR (3) to . I.
2020. When 03 CONCENTRATION
meter (2) Ind i cat I on
stabilizes, check that
meter Indicates between
.70 and .90. If not, go
to step 2023.
2021 .
2022.
2023.
2024.
2025.
2026.
2027.
2028.
Re InstaI I cover.
Go to step I .
Set the POWER switch to
OFF.
Remove new Electrometer
Amp 1 i f ier PC Beard (4)
from monitor, reinstall
old PC Board.
Re i nstaI I cover.
Disconnect wire (7) from
FULL SCALE RANGE
SELECTOR switch.
Disconnect wire (6) from
FULL SCALE RANGE
SELECTOR switch.
Set FULL SCALE RANGE
SELECTOR (3) to . I .
6-209
-------
Section 6 - Troubleshooting
2029. Use VOW to measure OHMS.
Connect positive test
lead to S3 (3), common
test lead to S3 (I).
2030. Check that VCN: indicates
between 95K and I05K
ohms. If not, go to
step 2482.
2031. Use VOM to measure OHMS.
Connect positive test
lead to S3 (4), common
test lead to S3 (3).
2032. Check that VON' indicates
between 85K and 95K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Co
to step I .
2033
2034
Use VOr to measure OHMS.
Connect positive test
lead to S3 (4), common
l-est lead to S3 ( I ) .
Check that VOK' indicates
between 9.f>K and 10.5K
ohrrs. If not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to step I.
6-: i o
-------
Section 6 - Troubleshooting
2035. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2036. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2037. Replace Detector Cell
(5), refer to Replace
Detector Cell Assembly;
page 7-2 I .
2038. Go to step I.
2039. Check that 03
CONCENTRATION meter (7)
indicates between 12 and
20. If not, go to step
2052.
2040. Check that Calibration
Adjust (6) will adjust
03 CONCENTRATION meter
( 7 ) Ind i cat ion to 16.
If not, go to step 2052.
2041, Using EXTERNAL 03
GENERATOR CALIERATICN
CURVE, determine
generator sleeve setting
that w 1 I.I produce .08
PPM 03 concentration.
Set generator sleeve (8)
to this sett i nc.
.OH,M«.TOK / ™'
/ AVfctM I I
cc*ctst«*i* ./ |
~-"1/ ^\L/ ,111
6-21
-------
Section 6 - Troubleshooting
2042. Set FULL SCALE RANGE
SELECTOR (2) to . I .
2043. Check that 03
CONCENTRATION meter (I)
indicates between 79 and
90. If not, go to step
2051 .
2044. Set FULL SCALE RANGE
SELECTOR (2) to .2.
2045. Check that 03
CONCENTRATION meter (I)
indicates between 35 and
45. If not, go to step
2051 . .
2046. Set FULL SCALE RANGE
SELECTOR (2) to .5.
2047. Check that 03
CONCENTRATION meter (I)
indicates between 14 and
18. If not, go to step
205 I .
2048. Set FULL SCALE RANGE
SELECTOR (2) tc I .
2049. Check that 03
CONCENTRATION meter (I)
indicates between 7 and
9. If not, go to step
2051 .
2050. Go to step 81 .
2051 . Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (3)
to this sett i nc.
2052. set the POWER switch to
OFF.
2053. Interchange Electrometer
Ami Ifier PC Board v \ OZONf MONITOR
- ' )' ^A itfroNCfNTH*nos
s^."r ™. ATr^—-^"H
•-_ - ll«(
\> id AM /fHO ' • '•-.'TA.'JT PJKtCH
AC.' .M iO"jST ' HCTr.r.
C-21 2
-------
Section 6 - Troubleshooting
2056. When 03 CONCENTRATION
meter (I) indication
stabilizes, check that
meter indicates between
14 and 18. If not, go to
step 2058.
2057. Go to step I .
2058. Set the POWER switch to
OFF.
2059. Remove new Electrometer
Amp Ii f ier PC Board (6)
from monitor, reinstall
old PC Board.
2062. Set FULL SCALE RANGE
SELECTOR (2) to .05.
2063. Use VON' to measure OHMS.
Connect positive test
lead to S3 (5), common
test lead to S3 (4).
2064. Check that VOM indicates
between 95K and I05K
ohms. If not, go to
step 2482.
2060
2061
Disconnect wire (5) from
FULL SCALE RANGE
SELECTOR switch.
Disconnect wire (4) from
FULL SCALE RANGE
SELECTOR switch.
6-213
-------
Section 6 - Troubleshooting
2065. Use VOM to measure CHN'S.
Connect positive test
lead to S3 (I), common
test lead to S3 (5).
2066. Check that VOM indicates
between 90K and IOOK
onms. If noT, replace
FULL SCALE RANGE
SELECTOR switch (4). Go
to step I.
2067. Use VON' to measure OHMS.
Connect positive test
lead to S3 (I), common
test lead .to S3 (3).
2068. Check that VOM indicates
between 4.75K and 5.25K
ohms. If not, replace
FULL SCALF RANGE
SELECTOR switch (4). Go
to step I .
2069. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2070. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2071. Renlace Detector Cell
(2), refer to Replace
Detector Cell Assembly;
page 7-2 I .
2072. Go to step I .
2073.
2074.
2075.
Check that 03
CONCENTRATION meter (7)
Indicates between .12
and .20. If not, go to
step 2066.
Check that Calibration
Adjust (6) will adjust
03 CONCENTRATION meter
( 7 ) I nd i cat i on to .16.
If not, go to step 2086.
Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (9)
to this sett i no.
e-2
-------
Section 6 - Troubleshooting
2076.
2077
2078
2079,
2080,
2081
Set FULL SCALE RANGE
SELECTOR (8) to .I.
Check that 03
CONCENTRATION meter (7)
indicates between .70
and .90. If not, go to
step 2085.
Set FULL SCALE RANGE
SELECTOR (8) to .2.
Check that 03
CONCENTRATION meter (7)
indicates between .35
and .45. If not, go to
step 2085.
Set FULL SCALE RANGE
SELECTOR (8) to .5.
Check that 03
CONCENTRATION meter (7)
indicates between .14
and .18. If not, go to
step 2085.
2082. Set FULL SCALE RANGE
SELECTOR (8) to I.
2083. Check that 03
CONCENTRATION meter (7)
indicates between .07
and .09. If not, go to
step 2085.
2084. Go to step 59.
2085. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (9)
to this setting.
-------
Section 6 - Troubleshooting
2086. Set the POWER switch to
OFF.
2087. Remove cover (I).
2088. Interchange Electrometer
Ampli fler PC Board (2)
with a new one.
2089. Set the POWER switch to
ON.
2090. Set FULL SCALE RANGE
SELECTOR (4) to .05.
2091. When 03 CONCENTRATION
meter (3) indication
stabilizes, check that
meter indicates between
.14 and .18. If not, go
to step 2094.
2092. Reinstall cover.
2093. Go to step I.
2094. Set the POWER switch to
OFF.
6-216
-------
Section 6 - Troubleshooting
2095. Remove new Electrometer
AmplIf ier PC Board (2)
from monitor, reinstall
old PC Board.
2096,
2097
2098,
2099
Rei nstaI I cover.
Disconnect wire (6) from
FULL SCALE RANGE
SELECTOR switch.
Disconnect wire (5) from
FULL SCALE RANGE
SELECTOR switch.
Set FULL SCALE RANGE
SELECTOR (4) to .05.
2100. Use VOM to measure OHMS.
Connect positive test
lead to S3 (6), common
test lead to S3 (5).
2101. Check that VOM indicates
between 95K and I05K
ohms. If not, go to
step 2482.
6-217
-------
Section 6 - Troubleshooting
2102. Use VOM to measure OHMS.
Connect positive test
lead to S3 (I), common
test lead to S3 (4).
2103. Check that VOM Indicates
between 90K and IOOK
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (3). Go
to step I.
2104. Use VOM to measure CHMS.
Connect positive test
lead to S3 (I), common
test le,ad to S3 (2).
2105. Check that VOM indicates
between 4.75K. and 5.25K
ohms. If not, replaces
FULL SCALE RANGE
SELECTOR switch (3). Go
to step I .
6-218
-------
Section 6 - Troubleshooting
2106. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2107. Reconnect wire to FULL
SCALE RANGE SELECTOR
swItch.
2108. Replace Detector Cell
(5), refer to Replace
Detector Cell Assembly;
page page 7-21
2109. Go to step I .
2110. Check that 03
CONCENTRATION meter (7)
indicates between 30 and
50. If not; go to step
2125.
2IM. Check that Calibration
Adjust (6> wl I I adjust
03 CONCENTRATION meter
(7) Indication to 40.
If not, go to step 2125.
2112. Set FULL SCALE RANGE
SELECTOR (8) to .05.
2113. Check that 03
CONCENTRATION meter (7)
indicates between 14 and
18. If not, go to step
2125.
2114. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that wl I I produce .08
PPM 03 concentration.
Set generator sleeve (9)
to this setting.
2115. Set FULL SCALE RANGE
SELECTOR (8) to .I.
2116. Check that 03
CONCENTRATION meter <7)
indicates between 70 and
9-0. If not, go to step
2124.
2117. Set FULL SCALE RANGE
SELECTOR (8) to .2.
6-219
-------
Section 6 - Troubleshooting
2116. Check that 03
CONCENTRATION meter ( I )
indicates between 35 and
45. If not, go to step
2124.
2119. Set FULL SCALE RANGE
SELECTOR (2) to .5.
2120. Check that 03
CONCENTRATION meter (i)
indicates between 14 gnd
18. If not, go to step
2124.
2121. Set FULL SCALE RANGE
SELECTOR (2) to I.
2122. Check that 03
CONCENTRATION meter (I)
indicates between 7 and
9. If not, go to step
21 24.
2123. Go to step 81 .
2124. Usi ng EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that wi I I produce .08
PPM 03 concentration.
Set generator sleeve (3)
to this sett i ng.
2125. Set the POWER switch to
OFF.
2126. Interchange Electrometer
Amp I i f ier PC Board (6)
with a new one.
2127. Set the PCWFR switch to
ON.
2128. Set FULL SCALE RANGE
SELECTOR (2) to .02.
2129. When 03 CONCENTRATION
meter (I ) i nd i cat i on
stabilizes, check that
meter indicates between
35 and 45. If not, go to
step 2131.
2130. Go to step |t
I C1"r Co) (o
6-220
-------
Section 6 - Troubleshooting
2131. Set the POWER switch to
OFF.
2132. Remove new Electrometer
AmplIfler PC Board (6)
from monitor, reinstall
old PC Board.
2133. Disconnect wire (5) from
FULL SCALE RANGE
SELECTOR switch.
2134. Disconnect wire (4) from
FULL SCALE RANGE
SELECTOR switch.
2135. Set FULL SCALE RANGE
SELECTOR (2) to .02.
2136. use VOM to measure OHMS.
Connect positive test
lead to S3 (5), common
test lead to S3 (4).
2137. Check that VOM Indicates
between 95K and I05K
ohms. If not, go to
step 2482.
6-221
-------
Section 6 - Troubleshooting
2138. Use VOM to measure OHMS.
Connect positive test
lead to S3 (2), common
test lead to S3 (5).
2139. Check that VOM indicates
between 93K and I03K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (4). Go
to step I.
2140.
2141.
use VOM to measure OHMS.
Connect positive test
lead to S3 (2), common
test lead to S3 (3).
Check that VOM Indicates
between I .9K and 2. I K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (4). Go
to step I .
2142.
2143.
2144.
Reconnect w
SCALE RANGE
sw I tch .
re to FULL
SELECTOR
Reconnect wire to FULL
SCALE RANGE SELECTOR
sw I tch .
Replace Detector Cell
(I), refer to Replace
Detector Cell Assembly;
page 7-2 I .
2145. Go to step I.
pa'
6-222
-------
Section 6 - Troubleshooting
2146. Check that 03
CONCENTRATION meter (7)
Indicates between .30
and .50. If not, go to
step 2161 .
2147. Check that Calibration
Adjust (6) will adjust
03 CONCENTRATION meter
(7) i nd i cat ion to .40.
If not, go to step 2161.
2148. Set FULL SCALE RANGE
SELECTOR (8) to .05.
2149. Check that 03
CONCENTRATION meter (7)
I nd Icates between .I 4
and .18. If not, go to
step 2161.
2150. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that wi I I produce .08
PPM 03 concentration.
Set generator sleeve (9)
to this setting.
2151. Set FULL SCALE RANGE
SELECTOR (8) to . I .
2152. Check that 03
CONCENTRATION meter (7)
Indicates between .70
and .90. If not, go to
step 2160.
2153. Set FULL SCALE RANGE
SELECTOR (8) to .2.
2154. Check that 03
CONCENTRATION meter (7)
indicates between .35
and .45. If not. go to
step 2160.
2155.
2156.
2157
Set FULL SCALE RANGE
SELECTOR (8) to .5.
Check that 03
CONCENTRATION meter (7)
Indicates between .14
and .18. If not, go to
step 2160.
Set FULL SCALE RANGE
SELECTOR (8) to I.
8
£-223
-------
Section 6 - Troubleshooting
2158. Check that 03
CONCENTRATION meter (I)
indicates between .07
and .09. If not, go to
step 2160.
2159. Go to step 59.
2160. Using EXTERNAL 03
GENFRATOR CAL I BRAT ION-
CURVE, determine
generator sleeve settino
that will produce .08
PPf 03 concentration.
Set generator sleeve (3)
to this sett i ng.
2161. Set the POWER switch to
OFF.
2162. Remove cover (5).
2163. Interchance Electrometer
Ampl i f ier^PC Board (4)
with a new one.
6-224
-------
Section 6 - Troubleshooting
2164. Set the POWER switch to
ON.
2165. Set FULL SCALE RANGE
SELECTOR (2) to .02.
2166. When 03 CONCENTRATION
meter (I) 1ndlcat Ion
stabilizes, check that
meter Indicates between
.35 and .45. If not, go
to step 2169.
2167. ReinstalI cover.
2168. Go to step I.
2169. Set the POWER switch to
OFF.
2170. Remove new Electrometer
Amp I I f ier PC Board (4)
from monitor, reinstall
old PC Board.
2171. Reinstall cover.
2172. Disconnect wire (7) from
FULL SCALE RANGE
SELECTOR switch.
2173. Disconnect wire (6) from
FULL SCALE RANGE
SELECTOR switch.
2174. Set FULL SCALE RANGE
SELECTOR (2) to .02.
6-225
-------
Section 6 - Troubleshooting
2175. Use VOM to measure OHMS.
Connect positive test
lead to S3 (4), common
test lead to S3 (2).
2176. Check that VOM indicates
between 95K and I05K
ohms. If not, go to
step 2482.
21 77.
2178
2179,
21 80.
Use VOM
Connect
lead to
to measure OHMS
pos 11 i ve test
S3 ( I )
test lead to S3
common
(4).
Check that VOy indicates
between 93K -and I C3K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (3). Go
to step I .
2181. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch .
2182. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2183. Peolace Detector Cell
(0), refer to Replace
Detector Cell Assemblv;
7-21 .
2184. Go to step I.
2185. Check that 03
CONCFNTRATION meter (6)
indicates between 65 and
95. If net, go to step
2202.
Use VOM
Connect
lead to
to measure OHMS.
positive test
S3 (I)
test lead to S3
common
(2).
Check that VOM Indicates
between I ,9K and 2. I K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (3). Go
to step I .
6-22C
-------
Section 6 - Troubleshooting
2186. Check that Calibration
Adjust (5) will adjust
03 CONCENTRATION meter
(6) Indication to 80.
If not, go to step 2202.
2187. Set FULL SCALE RANGE
SELECTOR (7) to .02.
2188. Check that 03
CONCENTRATION meter (6)
indicates between 35 and
45. If not, go to step
2202.
2189. Set FULL SCALE RANGE
SELECTOR (7) tc .05.
2190. Check that 03
CONCENTRATION meter (6)
Indicates between 14 and
18. If not, go to step
2202.
2191. Usi ng EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (8)
to this sett i ng.
PVJLL ro
TEST FLUS
I ETHVUNt
I J'O) (O) ^
-N ^\—- V-X nut
ttTO CONSTANT fdȣB
ADJUST SELECTOR
6-227
-------
Section 6 - Troubleshooting
2192. Set FULL SCALE RANGE
SELECTOR (2) to . I .
2193. Check that 03
CONCENTRATION meter (I )
Indicates between 70 and
90. If not, go to step
2201 .
2194. Set FULL SCALE RANGE
SELECTOR (2) to .2.
2195. Check that 03
CONCENTRATION meter (I )
indicates between 35 and
45. If not, go to step
2201 .
2196. Set FULL SCALE RANGE
SELECTOR (2) to .5.
2197. Check that 03
CONCENTRATION meter (I)
indicates between 14 and
18. If not, go to step
2201 .
2198. Set FULL SCALE RANGE
SELECTOR (2) to I.
2199. Check that 03
CONCENTRATION meter (I)
indicates between 7 and
9. If not, go to step
2201 .
2200
2201 ,
2202,
2203,
Go to step 81.
Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPV 03 concentration.
Set generator sleeve (3)
to this setting.
Set the POWER switch to
OFF.
Interchange Electrometer
/>mp I i f i er PC Board (6)
with a new one.
1
\
/^^X \ CttO'.E MONIT
, / ,.7' ^\03 CONCENTHAT"
vi X .—. u_
TOH
ION
1SEC . .OS£C
rr TI
*• ' • J
CALIBRATE /ff-O L'-'JS'AST K:«'«Cfl
ADJ..' -D.oST nULC-OH
6-228
-------
Section 6 - Troubleshooting
2204. Set the POWER switch to
ON.
2205. Set FULL SCALE RANGE
SELECTOR (2) to .01.
2206. When 03 CONCENTRATION
meter (I) ind I cation
stabilizes, check that
meter indicates between
70 and 90. If not, go to
step 2208.
2207. Go to step I.
2208. Set the POWER switch to
OFF.
2209. Remove new Electrometer
Amp I i f i er PC Board (6)
from monitor, reinstall
old PC Board.
2210.
Disconnect wire (5) from
FULL SCALE RANGE
SELECTOR switch.
2211. Disconnect wire (4) from
FULL SCALE RANGE
SELECTOR switch.
2212. Set FULL SCALE RANGE
SELECTOR (2) to .01.
2213. Use VOM to measure OHMS.
Connect positive test
lead to S3 (5), common
test lead to S3 (4).
2214, Check that VON' indicates
between 95K and I05K
ohms. If not, go to
step 2462.
6-229
-------
Section 6 - TroubIeshooti
ng
2215. Use VOM to measure OHMS.
Connect positive test
lead to S3 (2), common
test lead to S3 (5).
2216. Check that VOM indicates
between 94K and I04K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR switch (4). Go
to step I .
2217. use VOM to measure OHMS.
Connect positive test
.lead to S3 (2), comnr.on
test lead to S3 (3).
2218. Check that VOM indicates
between 900 ohms and
I.IK ohms. If not,
replace FULL SCALE RANGE
SELECTOR switch (4). Go
to step I .
2219. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tc h .
2220. Reconnect wire to FULL
SCALE RANGE SELECTOR
switch.
2221. Replace Detector Cell
(I), refer to Replace
Detector Cell Assembly;
paqe 7-21.
2222. Co to steo I.
2223. Check that 03
CCNCFN'TRAT I0:, meter (6)
indicates between .65
and .95. If net, go to
step 2240.
6-230
-------
Section 6 Troubleshooting
2224. Check that Calibration
Adjust (8) will adjust
03 CONCENTRATION meter
(6) I nd1 cat ion to .80.
If not, go to step 2240.
2225. Set FULL SCALE RANGE
SELECTOR (7) to .02.
2226. Check that 03
CONCENTRATION meter (6)
indicates between .35
and .45. If not, go to
step 2240.
2227. Set FULL SCALE RANGE
SELECTOR (7) to .05.
2228. Check that 03
CONCENTRATION meter (6)
indicates between .14
and .18. If not, go to
step 2240.
2229. Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (9)
to this sett ing.
2230. set FULL SCALE RANGE
SELECTOR (7) to .I.
2231. check that 03
CONCENTRATION meter (6)
Indicates between 70 and
90. If not, qo to step
2239.
2232. Set FULL SCALE RANGE
SELECTOR (7) to .2.
2233. Check that 03
CONCENTRATION meter (6)
indicates between .35
and .45. If net, go to
step 2239.
2234. Set FULL SCALE RANGE
SELECTOR (7) to .5.
6-231
-------
Section 6 - Troubleshooting
2235. Check that 03
CONCENTRATION meter (I)
indicates between 14 and
18. If not, go to step
2239.
2236, Set FULL SCALE RANGE
SELECTOR (2) to I .
2237
2238
2239,
2240,
Check that 03
CONCENTRATION meter (I)
Indicates between .07
and .09. If not, go to
step 2239.
Go to step 59.
Using EXTERNAL 03
GENERATOR CALIBRATION
CURVE, determine
generator sleeve setting
that will produce .08
PPM 03 concentration.
Set generator sleeve (3)
to thIs sett Ing .
Set the POWER switch to
OFF.
•
o
0
n
^L .
O
6-232
-------
Section 6 - Troubleshooting
2241.
2242.
2243.
2244.
2245.
2246.
2247.
2248.
Remove cover (5).
Interchange Electrometer
Amp I If ier PC Board (4)
with a new one.
Set the POWER switch to
ON.
Set FULL SCALE RANGE
SELECTOR (2) to .01.
When 03 CONCENTRATION
meter (I) Ind i cat I on
stabilizes, check that
meter indicates between
.70 and .90. If not, go
to step 2248.
Rei nstaI I cover.
Go to step I .
Set the POWER switch to
OFF.
2249. Remove new Electrometer
Amplifi-er PC Board (4)
from monitor, reinstall
old PC Board.
2250. Reinstall cover.
2251. Disconnect wire (7) from
FULL SCALE RANGE
SELECTOR switch.
2252. Disconnect wire (6) from
FULL SCALE RANGE
SELECTOR switch.
2253. Set FULL SCALE RANGE
SELECTOR (2) to .01.
6-233
-------
Section 6 - Troubleshooting
2254. use VCIW to measure OHN'S.
Connect positive test
lead to S3 (3), coir.mon
test lead to S3 (I).
2255. Check that VOM indicates
between 95K and IC5K
ohms. If net, go to
step 2482.
2256. use VOV to measure OHMS.
Connect positive test
lead to S3 (4), comrron
test lead to S3 (3).
2257. Check that VO?-' indicates
between 94K and 104K
ohrrs. |f not, replace
FULL SCALE RANGE
SELECTOR switch (2). Go
to s *ep I .
2256. Use VCN" to measure OHN'S.
Connect positive test
lead to S3 (4), comrron
test lead to S3 (I ).
2259. Check that VOM indicates
between 900 ohms and
I . I K ohrr.s . If not,
replace FULL SCALE RANGE
SELECTOR switch (2). Go
to step I .
6-234
-------
Section 6 - Troubleshooting
2260. Reconnect wire to FULL
SCALE RANGE SELECTOR
swI ten.
2261. Reconnect wire to FULL
SCALE RANGE SELECTOR
sw i tch.
2262. Replace Detector Cell
(5), refer to Replace
Detector Cell Assembly;
paae 7-21.
2263. GO to step I .
2264. Check that 03
CONCENTRATION meter
indicates between 6 and
10. If not, go to step
2267.
2265. Using CALIBRATE Adjust
Micrometer, adjust meter
for between 7 and 9. If
unable to adjust for
between 7 and 9, go to
step 2267.
2266. Go to step 81.
2267. use VOM to measure VDC.
Connect positive test lead
to Jl pin 4 (6) common test
lead to J3 pin 13 (7).
2268. Check that VOM indicates
between 7 and 9 VOC. If not
go to step 2281 .
2269. Set the POWER switch to OFF.
6-235
-------
Section 6 - Troubleshooting
2270. Disconnect AC power from
mon I tor -
2271. Use VOM to measure OHMS.
Connect positive test
Iead to termi na I (10),
common test lead to
meter term]naI (13).
2272. Check that VOM Indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
2273. Use VOM to measure OHMS.
Connect positive test
Iead to term!naI (II),
common test lead to
meter term InaI (14).
22744 Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
2275. Disconnect resistor lead
(7) from term!naI.
6-236
-------
Section 6 - Troubleshooting
2276. Use VOM. to measure OHMS.
Connect positive test
lead to resistor lead
(7), common test lead to
termi naI (9 ).
2277. Check that VOM Indicates
between .9 and I .IM
ohms. If not, rep I ace
resistor R4 (8). Go to
step I .
2278. Replace 03 CONCENTRATION
meter (2).
2279. Reconnect resistor lead
to term I naI (6).
2280. Go to step I.
2281. Seal air Inlet (12) and
check that SAMPLE PLUS
ETHYLENE flow gauge (I)
IndI cat I on remaIns
steady. If not, go to
step 2354.
2282. Clear air Inlet (12).
2283.
2284.
2285,
2286
Use VOM to measure VDC.
Connect positive test
Iead to JI pin 13 (4),
common test lead to Jl
pin 14 (5) .
Check that VOM Indicates
between 105 and I 15 VDC.
If not, go to step
1349.
Use VOM tc measure VDC.
Connect positive test
lead to terminal (3*,
common test lead to J3
pin 13 (4).
Check that
between 50
If not, go
VOM Indicates
and 85 VDC.
to step 2290.
13 14
6-237
-------
Section 6 - Troubleshooting
2287.
2288.
2289.
2290.
2291 .
2292.
2293.
2294.
2295.
Interchange Electrometer
Amp I i f ier PC Board (2)
with a new one.
Using CALIBRATE Adjust
Micrometer, adjust meter
for between 7 and 9. If
unable to adjust for
between 7 and 9, go to
step 2297.
Go to step I .
Check that VOM
indication was low. If
not, go to step 2324.
Set the POWER switch to
OFF.
DIsconnect PC ( I )
detector ce I I .
f rom
Set the POWER switch to
ON.
Use VON' to measure VDC.
Connect positive test
lead to terminal (6),
common test lead to J3
pin 13 (5).
Check that
between 50
If not, go
VOK indicates
and 85 VDC.
to step 2331.
2296. Next, Replace Detector
Cell Assembly, procedure
begi ns at page 7-21
Go o-n to step I when
f in ished.
2297. Set the PCWF'R switch to
OFF.
2296. Disconnect AC power from
mon i tor.
6-238
-------
Section 6 - TroubIeshootinq
2299. Reinstall Electrometer
Amp I i f ier P.C. Board.
2300. Disconnect and tag lead
(4).
2301. Disconnect and tag lead
(3).
2302. Disconnect and tao lead
(7).
2303. Use VOK to measure OHMS.
Connect positive test
lead to terminal (4),
common test lead to
term! na I ( 3').
2304. Check that VOM indicates
between 95 and 105K
ohms. If not, go to
step 2491.
6-239
-------
Section - 6 Troubleshooting
2305. Use VOM to measure OHMS.
Connect positive test
I ead to term!naI (I),
common test lead to
term!naI (4 ).
2306. Check that VOM indicates
5 ohms or less. If not,
replace FULL SCALE RANGE
SELECTOR (3). Co to
step I.
2307. Use VOM to measure .OHMS.
Connect positive test
le'ad to terminal (I),
common test lead to
termi naI (2).
2308. Check that VOM indicates
between 95 and I05K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR (3). Go to
step I .
2309. Reconnect wire to
termi naI (4 ) .
2310. Reconnect wire to
terminal (2).
2311. Reconnect wire to
term InaI (I ) .
2312. Disconnect P7 (6) frorr.
detector ceI I .
U \J
6-240
-------
Section - 6 TroubIeshootinq
2313. Use VOM to measure OHMS.
Connect positive test
lead to P7 center
conductor (7), common
test lead to connector
(9).
2314. Check that VOM indicates
I ohm or ! ess . If not,
repair or replace wiring
and connectors as
necessary; go to step
2320.
2315. Reconnect P7 to detector
eel I .
2316. Disconnect PC (5) frorr.
detector ceI I.
2317. Use VOM to measure OHMS.
Connect positive test
lead to PC pin A (8),
common test lead to
termlnaI (10).
2318. Check that VOM indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step
2322.
8
U \_f
6-24 I
-------
Section 6 - Troubleshooting
2319. Next, Replace Detector
Cell Assembly, procedure
begins at page 7-21 .
Go on to step I when
fi nlshed.
2320. Reconnect P7 to detector
eel I .
2321. Go to step I .
2322.
2323.
2324.
2325.
2326.
2327.
Reconnect P6 to detector
eel I .
Go to step I.
Set the POWER switch to
OFF.
Disconnect AC power from
mon i tor.
Use VOM to measure OHMS.
Connect positive test
lead to JI pin 15 (I),
common test lead to
terminal (3).
Check that VOM Indicates
between 2.5 and 3K ohms.
If not, rep I ace
res i stor Rl6 (2 ). Go to
step I .
Connect AC power to
mon i tor.
Set the POWER switch
to on.
6-242
-------
Section 6 - TroubIeshootinq
2330.
2331.
2332,
2333,
2334.
2334.5
2335.
2336.
2337.
Go to step 2334.
Use VOM to measure VDC.
Connect positive test
I ead to term i naI (5),
common test lead to J3
pin 13 (8).
2339. Use VOM to measure VDC.
Connect positive test
I ead to Rl 4 terru na I
(9), corrmcn test lead to
J3 pin 13 (8).
Check that
between 95
I f not, go
Recon nect
eel I .
VOM indicates
and 105 VDC.
to step 2336.
P6 to detector
Use VOM to measure VDC.
Connect positive test
lead to terminal .(6),
common test lead to J3
pin 13 (8).
While observlnq VOM, rotate
CALIBRATE Adjust Micrometer
f uI Iv cIockw1se and
counterclockwise. Check that
VOM Indication varies between
55 and 80
step 2339
VDC. If, not, qo to
Replace transistor Ql
(4 ) . Go to step I .
Replace resistor RI6
(7).
Reconnect P6 to
eel I .
detector
2338. Go to step
6-243
-------
Section 6 TroubIeshootinq
2340. While observing VOM,
rotate CALIBRATE Adjust
M i crometer fully
cIockw i se and
counterclockwise. Check
that VOM Indication
varies between 55 and 80
VDC. If not, go to step
2342.
234
2342
2343,
2344
2345
2346
Repair or replace wiring
and connectors as
necessary. Go to step
Set the POWER switch to
OFF.
Disconnect AC power from
mon1 tor.
Disconnect resistor lead
(5 ) f rom term!naI .
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(5), common test lead to
J I pin 15 (4).
Check that VOM Indicates
between .9 and I.IK
ohms. If not, replace
res i stor Rl5 (I ). Go to
step I .
8
6-244
-------
Section 6 - TroubIeshootino
2347.
2348.
2349
2350
Use VOM to measure OHMS
Connect positive test
lead to RI4 terminal
test lead
termi naI (9).
(II), common
to RI4
Check that VOM indicates
between 18 and 22K ohms.
If not, rep I ace
Potentiometer RI4 (1C).
Go to step 2352.
Use VOM to measure OHMS.
Connect positive test
Iead to term i naI (8),
common test lead to
term i naI (6).
Check that VOK indicates
between 28 and 32K ohms.
If not, rep I ace
resistor RI3 (7). Go to
step 2352.
2351. Repair or replace wiring
and connectors as
necessary.
2352. Reconnect resistor lead
to term i naI (4).
2353. Go to step I.
2354. Use VCM to measure VAC.
Connect positive test
Iead to term i naI (3),
common test lead to
term i naI (2 ) .
2355. Check that VOM indicates
5 VAC or less. If not,
go to step 2357.
10
e-245
-------
Section 6 - TroubIeshootino
2356. Replace Selector
Solenoi d VaIve CI ). Co
to step I.
2357. Set the POWER switch to
OFF.
2358. Disconnect AC power from
mon i tor.
2359,
2360,
2361
2362,
2363,
Disconnect triac lead
(6 ) f rorr, termi na I .
Connect AC power to
mon i tor.
Set the POWtR switch to
ON.
Use VCM to measure VAC.
Connect positive test
lead to terminal (8),
common test lead to
termi naI (7).
Check that VOf/ Indicates
5 VAC or I ess. If not,
repair or replace wirino,
and connectors as
necessary; go to step
2369.
6-246
-------
Section 6 TroubIeshootino
2364. Set the POWER switch to
OFF.
2365. Disconnect AC power from
mon i tor.
2366. Use VOM to measure OHMS.
Connect positive test
lead to switch terminal
(2), conmcn test lead to
switch terminal (3).
2367. Check that VOM indicates
I OK ohms or more. I f
not, rep lace MODE
SELECTOR switch (5). Go
to step I.
Rep I ace tri ac (4). Go
to step I.
Reconnect triac lead to
term i na I (6 ) ,
Go to step I .
6-247
-------
Section 6 - TroubIeshootinq
2371. Check that 03
CONCENTRATION meter
indicates between 6 and
10. If not, go to step
2374.
2372. Using CALIBRATE Adjust
Micrometer, adjust meter
for .07 and .09. If
unable to adjust for
between .07 and .09, go
to step 2374.
2373. Go to step 59.
2374
2375,
Use VOM to measure VDC.
Connect positive test
lead to JI pin 4 (7),
common test lead to J3
pin 13 (8).
Check that VOM
between 7 and 9
not, go to step
nd i cates
VDC. If
2388.
2376.
2377.
2378.
2379.
Set the POWFR switch, to
OFF.
Disconnect
mon I tor -
AC power from
Use VOM to measure OHf/S.
Connect positive test
lead to terminal (4),
common test lead to
meter terrri na I ( 9 ) .
Check that VON' indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
U
©
\!2>j
O O> ^
0
0
6-248
-------
Section 6 - TroubIeshootinq
2380. Use VOM to measure OHMS.
Connect positive test
Iead to termi naI (2),
common test lead to
meter terminal (II).
2381. Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step I.
2382. Disconnect resistor lead
(5) from termi naI.
2383. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(5), common test lead to
termi naI ( 3).
2384. Check that VOM Indicates
between .9 and I.IM
ohms. If not, replace
resi stor R4 (I). Go to
step I .
2385. Replace 03 CONCENTRATION
meter (10).
2386. Reconnect resistor lead
to termi naI (4 ) .
2387. Go to step I .
2388. Seal air inlet (8) and
check that SAMPLE PLUS
ETHYLENE flow gauge (6)
i nd i cat ion rema i ns
steady. If not, go to
step 2464.
2389. Clear air in let (8).
JliL:Vku' LT
bei.ff'C'GOs.j* eel y>
'
6-249
-------
Section 6 TroubIeshootinn
2390. use VON', to measure VOC.
Connect positive test
lead to Jl pin 13 (2),
common test lead to Jl
pin 14 (3) .
2391. Check that Vf>' indicates
tctweer. I C5 and I I 5 VOC.
I f not, QO to step
I 59 I .
2392. Use VCN' to measure VDC.
Connect positive test
lead to terminal (I),
common test lead to J3
pin 13 (4 ) .
2393. Check that VOM indicates
between 50 and 85 VDC.
I f not, go to step 2399.
2394.
2395.
2 3 96.
2397
239R
2399
2400
2401
Remove rover (10).
In TercKance Flectrcrroter
Amplifier PC Poard (9)
with a new ono.
i.:. i r-; r/lLiB'"ATf AfliuSt
'•'i c rcmet e r , adjust meter
for between .07 and .09.
If unable to adjust for
between .C7 and .09, no
to steo 2406.
Re i n s taI I cove r .
Co to step I.
Check that VOh'
indication was low. If
not, rjo tc step 2434.
Set the PCWFR switch to
OFF.
Disconnect P6 (8) from
detector cell.
yt . yj®
i£V-
6-25G
-------
Section 6 - TroubIeshootino
2402. Set the POWER switch to
ON.
2403. Use VOM to measure VDC.
Connect positive test
I ead to term!naI (I ),
common test lead to J3
pin 13 (4).
2404. Check that VOM indicates
between 50 and 85 VDC.
If not, go to step 2440.
2405
2406
2407.
2408.
2409,
2410.
24 I
24 12
Next, Replace Detector
Cell Assembly, procedure
begins at pace 7-21 .
Go on to step I when
finished.
Set the POWER*switch to
OFF.
Disconnect AC power from
mon i tor.
Reinstall Electrometer
Amp I i f ier P.C. Board.
Rei nstaI I cover.
Disconnect and taq lead
(6).
Disconnect and tan lead
(7).
Disconnect and tag lead
(5).
6-251
-------
Section 6 Troub I es hoot i nrj
2413.
2414.
24 15.
24 16.
24 17.
2418.
Use VON*1 to measure OHMS.
Connect positive test
lead to terminal (8),
common test lead to
termi naI (9).
Check that VOM
between 95 and
ohms. If not,
step 2491.
I nd i cates
I05K
go to
Use VOM to measure OHMS.
Connect positive test
lead to terminal (7),
ccmmo-n test lead to
term!na I (8 ) .
Check that VOM indicates
5 ohms or less. If not,
replace FULL SCALE RANGE
SELECTOR (10). Go to
step I .
Use VOM to measure OHMS.
Connect positive test
lead to terminal (7),
common test lead to
term i naI (9).
Check that VOM indicates
between 95 and I05K
ohms. If not, replace
FULL SCALE RANGE
SELECTOR (10). Go to
step I .
2419. Reconnect wiro to
term i naI (8).
2420. Reconnect wire to
term i naI (9).
2421. Reconnect wire to
terminal (7).
2422. Disconnect P7 (12) from
detector cell.
2423. Use VCI-' to measure OHMS.
Connect positive test
lead to P7 center
conductor (2), common
test lead to connector
( I ).
2424. Check that VOM indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; ao to step
2430.
6-252
-------
Section 6 - TroubIeshootinq
2425. Reconnect P7 to detector
eel I .
2426. Disconnect P6 (12) from
detector ceI I .
2427. Use VOM to measure OHMS.
Connect positive test
Iead to P6 pin A (13),
common test lead to
termi naI (3).
2428. Check that VOM indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
2432.
2429. Next, Replace Detector
Cell Assembly, procedure
beg I ns at page 7-2 I .
Go on to step I when
finished.
2430. Reconnect P7 to detector
eel I .
2431. Go to step
1.1 12
2432. Reconnect P6 tc detector
eel I .
2433. Go tc step I .
2434. Set the POWER switch to
OFF.
2435. Disconnect AC power from
mon i tor.
2436. use VOM to measure OHMS.
Connect positive test
Iead to JI pin 15 (4),
common test lead to
terrr i na I ( 5 ) .
2437. Check that VOM indicates
between 2.5 and 3K chms.
I f not, replace
resistor PI6 (6). Go to
step I .
6-253
-------
Section 6 - TroubIeshootinq
2437.5 Connect AC oower to
mon i tor.
2438. Set the POWER switch to
ON.
2439. Go to step 2443.
2440. Use VOM to measure VDC.
Connect positive test
lead to terminal (3),
common test lead to J3
pin 13 (7) .
2441. Check that VOM Indicates
between 95 and 105 VDC.
If not, go to step 2446.
2442. Reconnect P6 to detector
eel I .
2443. Use VOK to measure VDC.
Connect positive test
Iead to term!naI (2),
common test lead to J3
pin 13 (7).
2444. While observing VOK,
rotate CALIBRATE Adjust
V i crometer fully
cIockwi se and
counterclockwise. Check
that VO^ indication
varies between 55 and 80
VDC. If not, go to step
2449.
2445. Replace transistor 01
(6). Go to step I.
2446. Replace resistor RI6
(9).
2447. Reconnect P6 to detector
eel I .
2448. Go to step I.
2449. Use VOM to measure VDC.
Connect positive test
lead to RI4 terminal
(13), comir.on test lead
to J3 pin 13 (7).
6-254
-------
Section 6 - Troubleshooting
2450. While observing VON",
rotate CALIBRATE Adjust
M i crometer fully
cIockw i se and
counterclockwise. Check
that VOV. Indication
varies between 55 and 80
VDC. If not, go to step
2452.
2451. Repair or replace wiring
and connectors as
necessary. Go to step
2452. Set the POWER switch to
OFF.
2453. Disconnect AC power from
mon i tor.
2454.
2455.
2456.
Disconnect resistor lead
(II) f rom term i naI.
Use VOM
Connect
lead to
to measure OHMS
positive test
resistor lead
(II),
to J 1
common
pin 15
test
(8) .
1 ead
Check that VOK indicates
between .9 and I.IK
ohms. If not, replace
res istor Rl 5 (12). Go
to step I .
2457. Use VOM to measure
Connect positive test
lead to RI4 terminal
(16), common test lead
to PI 4 terminaI' (14 ).
2458. Check that VCW indicates
between 18 and 22K chms.
If not, rep I ace
Potent i ometer Rl4 (15).
Go to step 2462.
2459. Use VON1 tc measure OH^S.
Connect positive test
lead to terminal (5),
common test lead to
term!naI (4).
2460. Check that VO^ indicates
between 26 and 32K chms.
If not, rep I ace
resi stor Rl3 (I ). Go to
step 2462.
2461. Repair or replace wirlno
and connectors as
necessa ry.
2462. Reconnect resistor lead
to term i naI (10).
2463. Go to step I.
15 16
f
c-
-------
Se'ction 6 - T roub I eshoot i no
2464. Use VCV to measure VDC.
Connect positive test
lead to J4 pin 3 (I),
common test lead to
term!naI (5 ) .
2465. Check that VOM indicates
5 VAC or less. If not,
go to step 2467.
2466. Replace Selector
Solenoid Valve (7). Co
.to step I .
2467. Use VOM to measure VDC.
Connect positive test
lead to J4 p.in 6 (2),
common test lead to J4
pin 13 (3) .
2466. Check that VOK Indicates
.5 VDC or I ess. I f not,
go to step 2474.
2469. Remove cover (6).
2470. Remove Alarm and Valve
Control P.C. Board (4).
2471. Use V0f>/ to measure VAC.
Connect positive test
lead to J4 pin 3 ( I ) ,
common test lead to
terrr i na I ( 5 ) .
2472. Check that VOf.' indicates
5 VAC or less. If not,
repair or replace wirino
and connectors as
necessary; go to step
2479.
2473. Co to step 2478.
2474. Remove cover (f).
2475. Remove Alarm and Valve
Control P.C. Beard (4).
:dL_
6-256
-------
Section fr - 7 r r. o u ! e r. ^ o c •*• ' n o
247£
2477
Use VOk' to n-easure VDC.
Connect positive test
lead to J4 pin 6 (?.) ,
common test lead to J4
pin 13 ( 3 ) .
Check that VON! indicates
.5 VDC or less. I f not,
repair or replace wiring
and connectors as
necessary; go to step
2479.
2478. Replace /Marr, and Valve
Control P.C, Be*rd '. * ) .
Go to step 2460.
2479. Reinstall Alarrr arc
VaIvc Control F.C.
Roaro.
2480. Reinstall cover.
2481 . Co to step
2482. Set the '-ir.'.'. f F- switch to
OFF .
2483. Disconnect PC Rower from
mo n i t o r.
f. - 2 5 7
-------
Section 6 - Troubleshooti
ng
2484.
2486.
2487.
Check that FULL SCALE
RANGE SELECTOR switch
(4) has no phys i caI
damage. If damaged,
repair or replace FULL
SCALE RANGE SELECTOR
switch (4). Go to step
2515.
2488.
Disconnect and
(5).
tag lead
Disconnect and tag
(3).
lead
2489.
2490.
2491 .
2492.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(5), common test lead to
res Istor Iead ( 3).
Check that VOM
between 95 and
ohms. If not,
step 2491.
I nd i cates
I05K
go to
Replace FULL SCALE RANGE
SELECTOR switch (4). Go
to step 2515.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(5), common test lead to
res i stor Iead ( I ).
Check that VOM
between 90 and
ohms. If not,
step 2501 .
t nd i cates
I IOK
go to
6-258
-------
Section 6 - Troubleshooting
2493. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
resistor lead (2).
2494. Check that VOM indicates
between 2.8 and 3.I K
ohms. I f not -, go to
step 2517.
2495. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(2), common test lead to
res i stor Iead (8).
2496. Check that VOM indicates
between 950 ohms and
I.IK ohms. If not, go
to step 2521.
2497. Disconnect resistor lead
(10) from swItch
term InaI.
2498. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(8), common test lead to
res i stor I ead (10).
2499. Check that VOM indicates
between 950 ohrrs and
I.IK ohms. If not,
rep I ace Rl I (9). Go to
step 2515.
2500. Replace Full Scale Range
Selector Switch (4). Go
to step 2515.
2501. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
res i stor Iead (7).
2502. Check that VOM indicates
between 14.5 and I6K
ohms. if not, go to
step 2509.
10
6-259
-------
Section ft - TroubIeshootino
2503. Use VCK to measure CHKS.
Connect positive test
lead to resistor lead
(2), common test lead to
res istor lead (I).
2504. Check that VCV indicates
between 28.5 and 3 I.5K
ohms . If not, no to
step 2525.
2505. . Disconnect resistor lead
(6 ) f rom switch
te rm i naI .
2506. Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(6), common test lead to
resistor lead (8).
2507. Check that VOM indicates
between 49K and 5IK
ohms. If not, replace
R5 (7). Go to step
25 15.
2506. Replace Full Scale Panne
Selector Switch (5). Go
to step 2515.
2509. Use VOM tc measure CH^S.
Connect positive test
lead to resistor lead
(2), common test lead to
res i stor Iead (9).
2510. Check that VOM indicates
between 9.5 and 10.5K
ohrs. If not, no tc
step 2529.
2511. Disconnect resistor lead
(II) f rom switch
term i naI.
-------
Section 5 - TrouhIeshootinn
2512. Use VCM to measure OHI^S.
Connect positive test
lead to resistor lead
(9), common test lead to
resistor lead (0).
2513. Check that VOM indicates
between 4.5K and 5.5K
ohms. If not, rep I ace
R8 ( 10) . Go to step
251 5.
2514. Replace Full Scale Ranne
Selector Switch (5). Go
to step 2515.
Reconnect tagged leads.
Go to step I .
Disconnect resistor lead
(12) from sw i tch
term!naI.
2515,
2516
2517,
2518. Use VOf tc measure OHMS.
Connect positive test
lead to resistor lead
(4), common test lead ^o
rer, i stcr I ead (12).
2519
2520
2521
2522,
2523
Creel' That VON' indicates
between 2.8K and 3.IK
ohirs . If not,
R9 (3). Go to
251 5.
reoI ace
sten
Replace- Full Scale canoe
Selector Switch (5). Go
to slep 2515.
Disconnect resistor
(13) f rcm switch
term i naI .
eao
Use VGM tc measure OHMS.
Cor.nect positive test
Iead to res i stor Iead
(4), common test lead to
res istor lead (13).
Check that VO-v indicates
between 950 ohms and
I.IK ohms. If not,
rep I ace RIO (14). Go to
step 2515.
12 11
6-26 I
-------
Section 6 - TroubIeshoot!na
2524.
2525.
2526.
2527
Replace Full Scale Range
Selector Switch (4). Go
to step 2515.
Disconnect resistor lead
( 5 ) f rom switch
term i naI.
Use VOM to measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
res i stor Iead (5 ) .
Check that VOM indicates
between 28.5 and 31.5K
ohms. If not, replace
R6 (6). Go to step
2515.
2528. Replace Full Scale Range
Selector Switch (4). Go
to step 25 I 5.
2529. Disconnect resistor lead
(3) f rom sw i tch
te rm i na I .
2530. Use VCM tc measure OHMS.
Connect positive test
lead to resistor lead
(I), common test lead to
res 1stor lead (3).
2531. Check that VOM indicates
between 9.5 and 10.5K
ohms. If not, replace
P7 (2) . Co to step
251 5.
2532. Replace Full Scale Ranne
Selector Switch (4). Go
to step 2515.
6-262
-------
Section 6 - TroubIeshootino
2533. Check that voltage was
Iow. If high, go to
step 2545.
2534. Use VOI^ to measure VDC.
Connect positive test
Iead to termi naI (9),
common test lead to
term!na I (10).
2535. Check that VOM indicates
4 VDC or more. If not,
go to step 2554.
2536. Use VOM to measure VDC.
Connect positive test
Iead to termi naI (II),
common test lead to
termi naI (8).
2537. Check that VCM Indicates
between .25 and 1.0 VDC.
If not, go to step
2572.
2538. Set the POWER switch to
OFF.
2539. Disconnect AC power from
mon i tor.
2540.
2541 .
2542.
2543.
11
Use VOM to measure OHMS.
Connect positive test
lead to CR3 lead (9),
common test lead to 02
coI I ector (7).
Check that VOM Indicates
between .75 and I.25
ohms. If not, go to
step 2595.
Use VOM to measure OHMS.
Connect positive test
lead to 02 collector
(4), common test lead to
ground.
Check that VOM indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step I .
6-263
-------
Section 6 - TroubIeshootino
2544
2545
2546
2547
2548
2549
D i sconnect w i re
f ronr, term i na I .
(10)
2550.
Disconnect two wires
(II) from term i naI.
Use VOM to measure OHMS.
Connect positive test
lead to CR3 anode (8),
common test lead to CR3
cathode ( 3) .
Check that VOM indicates
25 ohms or less. If
not, replace diode CR3
(9). Go to step 2623.
Use VOM to measure OHMS.
Connect positive test
lead to CR3 cathode (3),
common test
anode (8).
lead to CR3
Check that VOM Indicates
IOOK ohms or more. If
not, replace diode CR3
(9). Go to step 2623.
2551
2552
2553
2554
Use VOM to measure OHMS.
Connect positive test
Iead to CR4 anode (12),
common test lead to CP4
cathode (3).
VCM
nd i cates
I f
Check that
25 ohms or less.
not, replace diode CR4
(4). Co to step 2623.
Use VOM to measure OHMS.
Connect positive test
lead to CR4 cathode (3),
common test lead to CR4
anode (12).
Check that VOM indicates
ICOK ohms or more. If
not, replace diode CR4
(4). Go to step 2623.
Disconnect two wires
(13) f rom terrr i na I .
£-264
-------
Section 6 - TroubIeshootinq
2555. Replace transistor Q2
(14). Go to step I .
2556. Use VOM to measure VDC.
Connect positive test
Iead to termi naI (7 ) ,
common test lead to
termi naI (2 ).
2557. Check that VOM indicates
2.0 VDC or less. I f
not, go to step 2602.
2558. Set the POWER switch to
OFF.
2559. Disconnect AC power from
mon i tor.
2560. Use VOM to measure OHMS.
Connect positive test
Iead to term Ina I (7 ) ,
common test lead to
termi naI (2 ).
2561. Check that VOM indicates
I 8 ohms or more. I f
not, go to step 2608.
2562. use VOM to measure OHf/S.
Connect positive test
lead to CR3 cathode (3),
common test lead to 02
coI Iector (I ).
2563. Check that VOM Indicates
between .75 and 1.25
ohms. If not, go to
step 2614.
2564. Replace transistor 02
( 14) . Go to step I.
2565. Use VOf/ to measure VAC.
Connect positive test
I ead to term i naI (5),
common test lead to
term i naI (6).
2566. Check that VOM indicates
1C VAC or more. If not,
go to step 2678.
2567. Set the POWER switch to
OFF.
2568. Disconnect AC power from
monI tor.
8
6-26
-------
Section 6 TroubIeshootinq
NOTE
In the next steps VOM
indication must be
observed the instant
VOM test leads are
connected.
2569. Use VOM to measure OHMS.
Connect positive test
lead to te rm i na I ( I ),
common test lead to
terminal (2) and check
.that VOM indication
initially deflects to 50
ohms or less then
increases to IOOK ohms
or more. If not. qo to
step 2620.
NOTE
In the next steps VOM
i nd i cat ion must be
observed, the instant
VOM test leads are
connected.
2570. Use VOM to measure OHMS.
Connect positive test
lead to terminal (4),
common test lead to
terminal (3) and check
that VOM indication
initial Iy def I ects to 50
ohms or less then
increases to ICOK ohms
or more. If not, go to
step 2621.
2571. Repair or replace wiring
and connectors as
necessary. Go to step
2622.
2572. Interchange
PhotomuIt i p I i e r
Temperature Control PC
Board (5) with a new
one.
6-266
-------
Section 6 - TroubIeshootI no
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 22 . If
malfunction symptom
still pens Ists, go to
step 2573. If
malfunction Is cleared,
continue with checkout.
2573. Remove Photomu11ipI Ier
Temperature Control P.C.
Board.
2574. Use VOK to measure VAC.
Connect positive test
lead to J2 p i n I (6),
common test lead to J2
pin 4 (7) .
2575. Check that VOM indicates
6 VAC or more. If not,
repair or replace wiring
and connectors as
necessary; ao to step
2661.
2576.
2577.
2578.
Set the
OFF.
POWER switch to
2579.
2580.
2581.
Disconnect AC power from
mon i tor.
Use VOI» to measure OHMS.
Connect positive test
lead to J2 pin 4 (7),
common test lead to J2
pin 5 (8).
Check that VOM indicates
3.5K ohms or less. If
not, go to step 2626.
Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 6 (9),
comrron test lead to
g round.
Check that VOM indicates
I ohm or I ess. If not,
repair or replace wirinn
and connectors as
necessary; go to step
2661 .
6-267
-------
Section 6 - Troubleshooting
2582.
Use VOM
Connect
I ead to
common test
to measure OHMS.
positive test
Q2 err.i tter (2) ,
lead to
2583.
2584
term i na I ( 3 ) .
Check that VOM indicates
I ohm or I ess . If not ,
repair or replace wiring
and connectors as
necessary; go to step
2661 .
Use VOM .to measure OHMS.
Connect positive test
lead to Q2 base ( I ) ,
common test lead to
term i na I ( 2) .
2586. Use VOM to measure OHMS.
Connect positive test
Iead to 02 base (I ) ,
common test lead to Q2
emi tter (2).
2587. Check that VOM indicates
IK ohms or I ess. If
not, replace transistor
Q2 (8). Go to step
2661 .
2585
Check that
25 ohms or
not, go to
VOM indicates
less. I f
step 2632.
6-268
-------
Section 6 - Troubleshooting
2588. Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 4 (9),
common test lead to Q3
coI Iector (4) .
2569. Check that VOM Indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step
2661 .
2590. Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 9 (10),
common test lead to 0.3
base (13).
2591. Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
2661 .
2592. Use VOM to measure OHMS.
Connect positive test
lead to J2 pin 10 (II),
common test lead to Q3
em i tter (14).
2593. Check that VOM indicates
I ohm or less. If not,
repair or replace wiring
and connectors as
necessary; go to step
2661 .
2594. Replace transistor 03
(9). Go to step 2661.
2595. Disconnect P8 (7) from
detector cell.
2596. Use VOM tc measure OHMS.
Connect positive test
Iead to J 8 pin A (5 ) ,
common test lead to J8
pin R (6) .
2597. Check that VOM indicates
between 1.0 and 2.0
ohms. If not, go to
step 2601.
-------
Section 6 - TrpubIeshootinq
2596. Repair or replace wiring
and connectors as
necessary .
2599.
2600.
2601 .
2602.
2603.
Reconnect P8 to detector
eel I .
Go to step I .
Next, Replace Detector
Cell Assembly procedure
begi ns at pane 7-21 .
Go on to steo I when
f i n i shed .
Use VOf/ to measure VDC.
Connect positive test
I ead to terrr i na I ( 3) .
common test lead to
termi na I ( 9 ) .
2604.
2605.
2606.
2607.
2608.
2609.
Set the POWFR switch to
OFF.
Disconnect
mon i tor »
power from
Check that
.7 VDC or
go to step 2635.
VOM indicates
ess. I f not,
2610.
Remove Photo multiplier
Temperature Control P.C.
Board (14).
Go to step 2650.
Disconnect RI9 lead (2)
f rom terminal .
Use VOM to measure OHN'S.
Connect positive test
lead to RI9 lead (2) ,
common test lead to
termi na I (10).
Check that VOM Indicates
I 8 ohms or more . If
not, replace Resistor
RI9 ( I ). Go to step I .
6-270
-------
Section 6 - TroubIeshootina
2611. Repair or replace wiring
and connectors as
necessary.
2612. Reconnect RI9 lead to
terminal.
2613. Go to step I .
2614. Disconnect P8 (13) from
detector cell.
2615. Use VOM to measure OHMS.
Connect positive test
Iead to J8 pin A (II),
common test lead to J8
pin B (12).
2616. Check that VOM indicates
between I and 2 ohms.
If not, go to step 2601 .
2617. Repair or replace wirinn
and connectors as
necessary.
2618. Reconnect P8 to detector
eel I .
2619. Go to step I .
2620. Replace capacitor C6
(4). Go to step 2622.
2621. Replace capacitor C9
(8).
2622. Reconnect two wires to
term i naI (7 ) .
2623. Reconnect wire to
terminal ( 5 ) .
2624. Reconnect two wires to
term InaI (6).
13
6-271
-------
Section 6 - Troub I eshoot i r\>
2625. Go to step I .
2626. Disconnect P6 (8) from
detector ce I I .
2627. use VOM to measure OHMS.
Connect positive test
lead to J6 pin B (7),
common test lead to J6
pin C (5).
2628. Check that VOM Indicates
3.5K ohms or I ess . I f
not, go to step 2660.
*
2629. Repair or replace wiring
and connectors as
necessary.
2630. Reconnect P6 to detector
eel I .
263!. Go to step 2661 .
6 78
2632. Use VOM to measure OHMS.
Connect positive test
Iead to term i naI (3),
common test lead to
termi naI (2 ) .
2633. Check that VOM Indicates
25 ohms or I ess. If
not, replace resistor
Rl9 (I). Go to step
2661 .
2634.
Repair or replace wiring
and connectors as
necessary. Go to step
2661 .
2635. Set the POWER switch to
OFF.
2636. Disconnect AC power from
mon i tor.
2637. Disconnect P6 (8) from
detector ce I I .
6-272
-------
Section 6 - TroubIeshootino
2638. Use VOM to measure OHMS.
Connect positive test
lead to J6 pin E (7),
common test lead to J6
pin C (6).
2639. Check that VOM Indicates
I.8K ohms or more. I f
not, go to step 2601.
2640. Remove Photomu11ipI I er
Temperature Control P.C.
Board (4).
2641. Use VOM to measure OHMS.
Connect positive test
lead to P6 pin B (10),
common test lead to J2
pin 4 (II).
2642. Check that VOM indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
2663.
2643
2644
2645.
2646.
Use VOM tc measure OHMS.
Connect positive test
lead to P6 pin C (9),
common test lead to J2
pin 5 ( I2J.
Check that VOM Indicates
I ohm or I ess. If not,
repair or replace wiring
and connectors as
necessary; go to step
2663.
Reconnect
eel I .
P6 to detector
InstaI I new
Photomu11 i pI i er
Temperature Contro
Board.
PC
6-273
-------
Section 6 - TroubIeshootinq
2647.
2646.
NOTE
To determine if card
substitution cleared
malfunction, perform
checkout beginning with
step 17 and continuing
through step 22. If
malfunction symptom
still persists, go to
step 2647. If
malfunction is cleared,
continue with checkout.
Set the POWER switch to
OFF.
Disconnect AC power from
monI tor.
2649. Remove new
Photomu11 i pI i er
Temperature Control F.C.
Board ( I ) .
2650. Use VOM to measure OH^S.
Connect positive test
Iead to J 2 pin 9 (2) ,
common test Iead to J 2
pin 1C (3) ,
2651. Check that V0f-' indicates
500K ohms or mere. If
not, pc to step 2660<
6-274
-------
Section 6 - Troubleshooting
2652.
2653.
2654.
2655,
2656.
2657.
Use VOM to measure OHMS .
Connect positive test
I ead to term! na I ( 8 ) .
common test lead to
term i na I (7 ) .
Check that VOM indicates
I OOK ohms or more. I f
not, replace transistor
03 (9). Go to step
2676.
Disconnect RI9
from termi na I .
lead (4)
Use VOM to measure OHMS.
Connect positive test
lead to RI9 lead (4),
common test lead to
term i na I ( 7 ) .
Check that VOM Indicates
I 8 ohms or more . If
not, replace resistor
RI9 (6). Go to step
2676.
Repair or replace wiring
and connectors as
necessary .
2656. Reconnect RI9 lead to
terrr i na I ( 5) .
2659. Go to step 2676.
2660. Next, Replace Detector
Cell Assembly procedure
beq i ns at 7-2 I. Go on
to step when finished
266 I. Rei nstal I
Photomu11 i pI i er
Temperature Control P.C.
Board.
2662. Go to step I .
2663. Reconnect P6 to detector
cei I .
2664. Rei nstal I
Photomu11 i pI i er
Temperature Control P.C.
Board.
2665. Go to step I.
2666. Disconnect C5 lead (10)
from termi naI .
8
£-275
-------
Section 6 - TroubIeshootinq
2667. Use VON' to measure OHMS.
Connect positive test
Iead to J2 pin 9 (7) ,
common test lead to J2
pin 10 (8) .
2668. Check that VOM indicates
500K ohms or more. If
not- go to step 2670.
2669. Replace capacitor C5
(2). Go to step 2676.
2670
2671
2672
Dt sconnect w i re (6)
terminal.
from
Use VOM to measure OHMS.
Connect positive test
Iead to J2 pin 9 (7),
common test lead to J2
pin 1C (8).
Check that VOM indicates
500K ohms or more. If
not, repair or replace
wiring and connectors as
necessary; go to step
2674.
6-276
-------
Section 6 - TroubIeshootinq
2673. Replace transistor Q3
( I ).
2674. Reconnect wire to
term i na I (3 ).
2675.
2676.
Reconnect C5 lead to
term i naI (3).
Rei nsta I I
Photomu11 i pI i er
Temperature Contro
Boa rd.
2677. Go to step I
I P.C
2678. Use VON' to measure VAC.
Connect positive test
Iead to term i naI (5),
common test lead to
terrr i na I (4 ) .
2679. Check that VOI^ indicates
100 V/>C or more. I f
not, repair or replace
wiring and connectors as
necessary; go to step I.
2680. Replace transformer T3
(9). Go to step I .
6-277
-------
SECTION 7. CORRECTIVE MAINTENANCE
REPLACE PUMP ASSEMBLY
INPUT CONDITIONS
Applicable Mods:
Al I
Special Tools and Test Equipment:
None
Suppl ies:
Serviceable Pump Assembly
Personnel Required:
One Technician
Equipment Conditions:
Poor pump performance
Reed valve assembly and plumbing
proven good
Monitor disconnected from power
source
All external plumbing disconnected
NOTE
MOD C pumps do not have a fan
assembly, and pump mounting plate
does not have a fan housing.
NOTE
The pump assembly is a sealed
unit. Do not attempt repair or
disassembly in the field.
CAUTI ON
To avoid damage to fittings in
Monitor, teflon fitting should
be tightened finger tight.
Metal fittings should be tightened
finger tight plus 3/4 turn with a
wrench.
7-!
-------
Section 7 Corrective Maintenance
I. Set POWER switch ( I ) to OFF.
2. Remove four screws ( 4 ) and top
cover ( 2 ).
7. Tag and disconnect wiring from
pump assembly ( 14).
NOTE
3. Remove four screws ( 5 ) and
bottom cover ( 3).
4. Disconnect tubing ( 6 ) from
selector valve ( 7 ).
5. Loosen SAMPLE INLET fitting ( II)
and slide tubing ( 6 ) to rear
of monitor.
Inlet and outlet ports on MOD C
pumps are located on front side
of pump assembly.
8. Disconnect pump inlet tubing
( 8 )•
9. Disconnect pump outlet tubing
( 9 ).
6. Remove covers ( 12) from wire
nuts ( 13).
NOTE
It is not necessary to remove
EXHAUST fitting when removing
MOD C pump assemblies.
OZONE MONITOR
03 CONCENTRATION
\
©
2ERO
AMMENT I
.-, ll
PULL TO SAMPLE
TEST PLUS
I ETHYIENE
.01
.01
FULL SCALE MODE
RANGE SELECTOR SELECTOR
10 SEC
1SEC | 40SEC
6
Co) (oj
CALIBRATE
AIUUST
ZERO
ADJUST
nut
CONSTANT
SELECTOR
7-2
-------
Section 7 - Corrective Maintenance
10. Remove EXHAUST fitting (10 ).
NOTE
Support pump while performing
following step.
II. Remove four nuts ( 18 ) securing
pump mounting plate ( 17 ).
12. Remove pump assembly ( 14 ).
NOTE
MOD C pumps have no fan assembly
attached to them.
13. Remove two bo I ts (16).
14. Remove pump ( 15 ) from mounting
plate ( 17 ).
CAUTION
The pump assembly is a sealed
unit. Do not attempt repair
or disassembly in the fiel.d.
NOTE
MOD C mounting plates do not
have a cooling fan housing.
15. Insta I I new pump (15) on
mounting plate ( 17 ) and secure
with bolts ( 16 ).
16. Reinstall pump assembly ( 14 )
and secure with nuts ( 18 ).
_n_n__n__n_
13
7-3
-------
Section 7 - Corrective Maintenance
17. Reinstall EXHAUST fitting (5).
18. Connect pump outlet tubing ( 4 ).
19. Connect pump inlet tubing ( 3 ).
20. Connect pump wiring with wire
nuts ( 8 ) and install covers
( 7 ).
21. Connect Sample Inlet tubing ( I )
to selector valve ( 2 ).
22. Tighten SAMPLE INLET fitting ( 6 ).
23. Install bottom cover ( 9 ) and
secure with screws (II ).
24. Install top cover (12 ) and secure
with screws (10 ).
25. Connect stainless steel tubing (13)
to ETHYLENE fitting ( 16 ).
26. Connect tefIon fIIter ( 17 ) to
SAMPLE INLET fitting ( 14 ).
7-4
-------
Section 7 - Corrective Maintenance
27. Connect exhaust tubing ( 18 ) to
EXHAUST fitting ( 15 ).
28. Set POWER switch ( 19 ) to ON.
29. Recheck calibration. Refer to
Calibrate the Ozone Monitor,
page 4-9.
END OF ACTIVITY
ETHYLENE
I
T
OZONE MONITOR
OJ CONCENTRATION
PULL TO SAMPLE
TEST PLUS
I ETHYLENE
A <&
( ) CALIBRA
^—"^ Aniirei
o) (a
,TE
ADJUST
ZERO
ADJUST
TIME
CONSTANT
SELECTOR
16
18
V
17-
7-5
-------
Section 7 - Corrective Maintenance
CLEAN THE REED VALVE ASSEMBLY
INPUT CONDITIONS
Applicable Mods:
All
Special Tools and Test Equipment:
None
Suppl ies:
None
Personnel Required:
One Technician
Equipment Conditions:
Sample plumbing proven good
SAMPLE PLUS ETHYLENE flowrate
cannot be maintained
CAUTION
The pump assembly is a sealed
unit. Do not attempt repair or
disassembly in the field.
CAUTION
Do not pry on reed valve assembly
with any tool. This may damage
the valve assembly or the sealing
surface.
CAUTION
When cleaning reed valve assembly,
use extreme caution to prevent
distorting or damaging the reeds.
7-7
-------
Section 7 - Corrective Maintenan^o
I. Set POWER switch ( | ) to OFF.
2. Disconnect monitor power cable
from primary power source.
3. Remove four screws ( 4 ) and top
cover ( 3 ).
NOTE
Inlet and outlet ports on MOD C
pumps are located on front side
of pump assembly.
4. Disconnect pump inlet tubing
( 5 ).
5. Disconnect pump outlet tubing
( 6 ).
6. Remove four screws ( 7 ).
7. Remove pump head (10 ).
CAUTION
Note the position of the scribed
line extending from pump casting
onto the face of reed vaIve
assembly.
CAUTI ON
Do not pry on reed valve assembly
with any tool. This may damage
the valve assembly or the sealing
surface.
u U
7-8
-------
Section 7 - Corrective Maintenance
8. Remove valve assembly ( 8 ) by
lifting it with the fingers.
CAUTI ON
When cleaning reed valve assembly,
use extreme caution to prevent
distorting or damaging the reeds.
9. Remove any foreign matter from
under reeds ( 9 ).
10. Reinstall valve assembly ( 8 ).
NOTE
Insure that scribe marks on valve
assembly and pump casting are
a Iigned.
Reinstall pump head ( 10) and
secure with screws ( 7 ).
12. Connect pump inlet tubing ( 5 ).
13. Connect pump outlet tubing ( 6 ),
14. Connect monitor power cable to
I 15 VAC, 60 Hz source.
15. Set POWER switch ( I ) to ON.
16. Adjust SAMPLE PLUS ETHYLENE
flowmeter ( 2 ) to value
specified on Supplied Data Sheet,
NOTE
If correct SAMPLE PLUS ETHYLENE
flowrate cannot be obtained,
replace pump assembly. Refer
to Replace Pump Assembly, page
6-1 .
17. Recheck calibration. Refer to
CaI ibrate the Ozone Monitor,
page 4-9.
END OF ACTIVITY
Mod A and B
7-9
-------
Section 7 - Corrective Maintenance
REPLACE THE INTERNAL OZONE
GENERATOR UV LAMP
INPUT CONDITIONS
Applicable Mods:
Al I
Special Tools and Test Equipment;
None
Supplies:
Serviceable UV Lamp
PersonneI Requ i red:
One Technician
Equipment Conditions:
Ultra-violet Lamp proven defective
Internal Ozone Generator inoperative
CAUTION
To avoid damage to fittings in
Monitor, teflon fittings should be
tightened finger tight.
CAUTION
Be extremely careful when
connect i ng/d1sconnect i ng f i tt i ngs
from quartz tube. The quartz
tube is very fragile.
NOTE
In late model monitors, the
Ozone Generator is located in
the left rear corner.
7-11
-------
Section 7 Corrective Maintenance
I. Set POWER switch ( I ) to OFF.
2. Disconnect monitor power cord
from primary power source.
3. Remove four screws (3 ) and
top cover ( 2 ).
CAUTION
Be extremely careful when
disconnecting fittings from
quartz tube. The quartz tube
is very fragile and breaks
easily.
4. Disconnect inlet tubing ( 5 )
from quartz tube.
5. Disconnect outlet tubing ( 4 )
from quartz tube .
ETHYLENE
OZONE MONITOR
03 CONCENTRATION
S
i
SAMPLE
PLUS
ETHYLENE
6
ZERO
ENT I
.1
FULL SCALE MODE
RANGE SELECTOR SELECTOR
10 SEC
I SEC | 40 SEC
CALIBRATE
ADJUST
ZERO
ADJUST
\1
7-I 2
-------
Section 7 Corrective Maintenance
6. Disconnect lamp cord ( 8 ).
7. Remove four screws ( 9 ').
8. Remove Ozone Generator ( 10).
9. Loosen two setscrews (II).
10. SI ide lamp ( 7 ) out of
generator.
NOTE
MOD C Ozone Generator lamps are
secured with a nut and teflon
ferrules. Loosen nut and slide
lamp from generator.
II. Install new lamp assembly (12).
NOTE
On MOD C generators, note
position of ferrules on defective
lamp. Remove ferrules and
install on new lamp. Install
lamp assembly into generator and
secure with nut.
12. Secure lamp assembly ( 12) with
setscrews (II).
11
8
7-13
-------
Section 7 Corrective Maintenance
13. Reinstall Ozone Generator (10)
with four screws ( 9 ).
16. Connect lamp cord ( 5 ) to
power supply ( 3 ).
CAUTION
Be extremely careful when
connecting teflon fittings to
quartz tube. The quarts tube
is very fragile and breaks
easily.
14. Connect outlet tubing ( I ) to
quartz tube.
15. Connect inlet tubing ( 2 ) to
quartz tube.
17. Install top cover and secure
with screws.
18. Connect monitor power cord to
I 15 VAC, 60 Hz source.
19. Set POWER switch ( 4 ) to ON.
20. Recalibrate Ozone Generator.
Refer to Adjust the Internal
Ozone Generator, page 7-27.
END OF ACTIVITY
OZONE MONITOR
S3 CONCENTRATION
CAUIIUTE
""1 I
AMBIENT I I
» I
Co) (oj
CAUIKATt
AOJUIT
ZIKO
ADJUST
FW.L SCALE uoot
RANGE SELECTOR SELCCTO"
10 SEC
1SEC | «OS£C
CONSTANT
StUCTOR
7-1 4
-------
Section 7 - Corrective Maintenance
REPLACE THE INTERNAL OZONE
GENERATOR QUARTZ TUBE
INPUT CONDITIONS
ApplI cable Mods;
All
Special Tools and Test Equipment:
None
Supplles:
Quartz Tube
Personnel Required:
One Technician
Equipment Conditions;
Internal Ozone Generator Inoperative
Quartz Tube broken or damaged
CAUTION
Be extremely careful when connecting
fittings to quartz tube. The quartz
tube is very fragile and breaks
ea s I I y.
CAUTI ON
To avoid damage to fittings in
Monitor, teflon fittings should be
tightened finger tight.
NOTE
In MOD C Monitors, the Ozone
Generator is located in the left
rear corner.
7-15
-------
Section 7 - Corrective Maintenance
I. Set POWER switch ( I ) to OFF.
2. Disconnect monitor power cord from
primary power source.
3. Remove four screws ( 2 ) and top
cover ( 3 ).
CAUTION
Be extremely careful when
disconnecting fittings from
quartz tube. The quartz tube
is very fragile and breaks
easily.
4. Disconnect inlet tub'ing ( 5 )
from quartz tube.
5. Disconnect outlet tubing ( 4 )
from quartz tube.
6. Disconnect lamp cord ( 8 ) from
power supply ( 6 ).
7. Remove four screws (10 ).
8. Remove Ozone Generator ( I I ).
9. Loosen two setscrews ( 14 ).
NOTE
MOD C Ozone Generator lamps are
secured with a nut and teflon
ferrules. Loosen nut and slide
lamp from generator. Do not
change position of ferrules.
10. Slide lamp ( 7 ) out of
generator (II).
OZONE MONITOR
01 CONCENTRATION
CALIBRATE
ZERO
AMBIENT I
. I
SAMPLE
PLUS
ETHYLENE
6
CALIBRATE
ADJUST
ZERO
ADJUST
FULL SCALE MODE
RANGE SELECTOR SELECTOR
10 SEC
I SEC | 40SEC
TIME
CONSTANT
SELECTOR
7-16
-------
Section 7 - Corrective Maintenance
Remove eight screws ( 12 ) securing
end block (13 ).
NOTE
End blocks on MOD C generators
are secured with four screws.
Remove four screws and end
b I oc k.
12. Remove end block (13 ).
13. Remove quartz tube (9 )
10
13
14
7-17
-------
Section 7 - Corrective Maintenance
14. Install new quartz tube ( | ).
15. Reinstall end block ( 2 ) and
secure with screws ( 8 ).
16. Reinstall lamp ( 4 ) and secure
with setscrews ( 3 ).
NOTE
ON MOD C generators, reinstall
lamp and secure with nut.
17. Reinstall Ozone Generator ( 7 )
and secure with screws ( 6 ).
CAUTI ON
Be extremely careful when
connecting fittings to quartz
tube. The quartz tube is very
fragile and breaks easily.
18. Connect outlet tubing ( 9 ) to
quartz tube.
8
7-18
-------
Section 7 - Corrective Maintenance
19. Connect inlet tubing (10 ) to
quartz tube.
20. Connect lamp cord ( 5 ) to
power supply (II ).
21. Connect power cord to 115 VAC,
60 Hz source.
22. Set POWER switch ( 12 ) to ON.
23. Recalibrate Ozone Generator.
Refer to Adjust the Internal
Ozone Generator, page 7-27.
24. Install top cover ( 14 ) and
secure with screws ( 13 ).
END OF ACTIVITY
7-19
-------
.Section 7 - Corrective Maintenance
REPLACE THE DETECTOR CELL ASSEMBLY
INPUT CONDITIONS
Applicable Mods:
All
Special Tools and Test Equipment:
None
Supplies:
Serviceable Detector Cell
Personnel Required;
One Technician
Equ i pment Cond i tions:
Detector CelI proven defective.
Monitor shut off and disconnected
from primary power source and
externa1 pIumb i ng.
WARNING
Detector CeI I i s a factory sea Ied
unit. No attempt should be made
to repair it in the field.
NOTE
To avoid damage to fittings in
Monitor, teflon fittings should
be tightened finger tight. Metal
fittings should be tightened
finger tight plus 3/4 turn with a
wrench.
7-21
-------
Section 7 - Corrective Maintenance
I. Set POWER switch ( 2 ) to OFF.
2. Remove four screws ( 3 ) and
top cover ( 2 ).
NOTE
If repairing MOD C, remove four
screws ( 4 ). Remove chassis
from bottom cover ( 5 ).
3. Disconnect connector ( 14 ).
4. Disconnect BNC connector ( 15 )•.
5. Disconnect connector ( 6 ).
6. Disconnect tubing at SAMPLE IN
fitting ( 13).
1. Disconnect tubing at Selector
Solenoid Valve ( II) and
remove from monitor.
8. Disconnect black tubing from top
of detector eel I ( 16).
NOTE
Tubing extends 2-1/2 inches into
detector eel I.
9. Disconnect black tubing from
sojenoid valve ( 10) and remove
from monitor.
10. Disconnect exhaust tubing from
front of detector cell (7 ).
7-22
-------
Section 7 - Corrective Maintenance
II. Disconnect ethylene tubing ( 9 )
from fitting ( 8 ).
NOTE
Ethylene tubing extends 2-1/2
inches into detector cell.
12. Disconnect ethylene tubing from
side of detector cell (12) and
remove from monitor.
NOTE
Some early model detector cells
have a water cool ing coiI.
Cooling coil must be disconnected
from rear of monitor before
removing detector cell.
NOTE
If repairing MOD C, remove screw
from bottom of chassis.
13. Remove two screws ( 18 ) securing
cell ( 17 ).
14. Remove detector eel I ( 17 ).
15. Position serviceable detector
eel I ( 17 ) into chassis.
16. Install two screws ( 18 ).
NOTE
If repairing MOD C, install
screw in. bottom of chassis.
NOTE
If detector cell being installed
is an early model with a cooling
coil, connect the cooling coil to
fittings on rear of monitor. If
no fittings are provided, secure
coil to prevent interfering with
cell electrical connections.
17
12
u u
7-23
-------
Section 7 - Corrective Maintenance
17. Insert ethylene tubing ( 3 )
2-1/2 inches into detector cell.
18. Connect ethylene tubing to
fitting ( II ) of detector eel I.
19. Connect ethylene tubing to
fitting ( 4 ).
20. Connect exhaust tubing to
fitting ( 2 ) of detector cell.
21. Connect black tubing to
solenoid valve ( 5 ).
22. Insert tubing ( 7 ) 2-1/2 inches
into detector eel I.
23. Connect black tubing to top of
cell ( 12 ).
24. Connect tubing to solenoid valve
( 6 ).
25. Connect tubing to SAMPLE INLET
f i tt i ng ( 8 ).
26. Connect connector ( I ) to front
of eel I.
27. Connect BNC connector ( !0) to
rear of eel I.
28. Connect connector ( 9 ) to rear
of eel I.
NOTE
If repairing MOD C, reinstall
chassis in bottom cover and secure
with screws.
29. Connect stainless steel tubing to
ETHYLENE fitting ( 16).
30. Connect teflon filter (13) to
SAMPLE INLET fitting ( 14 ).
8
10
13
7-24
-------
Section 7 - Corrective Maintenance
31. Connect exhaust tubing to EXHAUST
fitting ( 15 ).
32. Rotate ethylene cylinder valve
( 19) counterclockwise until
pressure is indicated on gauge
( 18 ).
33. Connect monitor power plug to
I 15 VAC, 60 Hz Iine.
34. Set POWER switch (17 ) to ON.
35. Check plumbing connections for
leaks. Refer to Check Sample
and Calibration Sample Flowpath,
page 6-31.
36. Set POWER switch ( 17 ) to OFF.
37. Install top cover and secure
with screws.
38. Set POWER switch ( 17 ) to ON.
39. Recheck calibration. Refer to
Calibrate the Ozone Monitor,
page 4-9.
END OF ACTIVITY
OZONE MONITOR
03 CONCENTRATION
PULL TO SAMPLE
TEST PLUS
ETHYLENE
a to
\
CALIBRATE
AMBIE^rl |
.os ; .1 I
A r ^
\Q/ ( ) CALIBRATE
^-^ ADJUST
.03
.01
FULL SCALE MODE
RANGE SELECTOR SELECTOR
10 SEC
1SEC I 40 SEC
TIME
ZERO CONSTANT POWER
ADJUST SELECTOR
17
7-25
-------
Section 7 Corrective Maintenance
ADJUST THE INTERNAL OZONE
GENERATOR
INPUT CONDITIONS
Applicable Mods:
Al I
Special Tools and Test Equipment:
None
Supplies:
Calibration Data Log
Personnel Required:
One Technician
Equipment Conditions:
Start Up the Ozone Monitor
performed. Refer to page 3-1.
Calibrate the Ozone Monitor
performed. Refer to page 4-9.
WARN ING
Use extreme caution when adjusting
Ozone Generator. Power is appl ied
to the Monitor during this
procedure.
7-27
-------
Section 7 - Corrective Maintenance
Remove four screws ( 3 ) and top
cover ( 2 ).
2.
3.
WARN ING
Use extreme caution when adjusting
Ozone Generator. Power is applied
to the monitor during this proce-
dure.
Loosen positioning lock screw ( 5 )
Adjust knob ( 4 ) unti I 03 CONCEN-
TRATION meter ( I ) indicates
between 50% and 15% of meter scale.
NOTE
After adjusting generator, wait 15
minutes for monitor to stabilize.
Check 03 CONCENTRATION meter
indication, readjust if necessary.
4. Tighten positioning lock screw ( 5 ).
5. Reinstall top cover ( 2 ) and secure
with screws ( 3 ).
6. Record 03 CONCENTRATION meter
indication on Calibration Data
Log.
END OF ACTIVITY
OZONEllONITOR
03 CONCH TRATION
AMBIENT
- j . II
.02 . V-W .. 5
PULL TO SAMPLE
TEST PLUS
I ETHVLENE
o
Co) (o)
CALIBRATE
ADJUST
ZERO
ADJUST
FULL SCALE MODE
RANGE SELECTOR SELECTOR
10 SEC
I SEC | 40 SEC
TIME I
CONSTANT POWER
SELECTOR
7-28
-------
Section 7 Corrective Maintenance
CHECK THE SAMPLE AND CALIBRATION
SAMPLE FLOWPATH
INPUT CONDITIONS
Applicable Mods:
Al I
'Special Tools and Test Equipment:
None
Supplies:
Vinyl tubing 3/16 I.D., 18" length
Teflon tubing, 1/4 O.D., 8" length
2 SWAGELOK fittings and ferrules
I SWAGELOK male connector
Liquid Leak Detector Solution
Data Sheet (Supplied with Monitor)
Personnel Required:
One Technician
Equipment Conditions:
Ozone Monitor disconnected from
all external plumbing
Leak suspected in Sample and/or
Calibration Sample Flowpaths
WARN ING
Use extreme caution when performing
check. Power is applied to the
Monitor and electric shock is
possible during this procedure.
CAUTI ON
To avoid damage to fittings in
Monitor, teflon fittings should
be tightened finger tight. Metal
fittings should be tightened
finger tight plus 3/4 turn with
a wrench.
CAUTI ON
Be extremely careful when
repairing fittings on quartz tube.
The quartz tube is very fragi-le
and breaks easily.
7-29
-------
Section 7 - Corrective Maintenance
I. Set POWER switch ( I ) to ON.
2. Set MODE SELECTOR switch ( 4 ) to
ZERO.
3. Adjust SAMPLE PLUS ETHYLENE
flowmeter ( 2 ) to value specified
on Data Sheet.
4.. Using a finger, seal off air flow
at Calibration Sample Filter inlet
( 6 ). Check that SAMPLE PLUS
ETHYLENE flowmeter ( 3 .) slowly
decreases to 0. If not, go to
step 12.
5. Remove finger from inlet ( 6 ).
6. Set MODE SELECTOR switch ( 4 ) to
AMBIENT.
7. Using a finger, seal off air flow
at SAMPLE INLET fitting ( 7 ).
Check that SAMPLE PLUS ETHYLENE
flowmeter ( 3 ) slowly decreases
to 0. If not, go to step 30.
8. Remove finger from inlet ( 7 ).
9. Connect stainless steel tubing
( 10 ) to ETHYLENE INLET fitting
( 9 ).
10. Connect teflon filter output
( 5 ) to SAMPLE INLET fitting
( 7 ).
II. Connect plastic tubing to EXHAUST
fitting ( 8 ).
END OF CHECKOUT
12. If servicing MOD C, go to step 48,
13. Set POWER switch ( I ) to OFF.
7-30
-------
Section 7 Corrective Maintenance
14. Remove four screws ( 12 ) and
top cover ( I! ).
CAUTI ON
To avoid damage to fittings in
monitor, teflon fittings should
be tightened finger tight. Metal
fittings should be tightened
finger tight plus 3/4 turn with
a wrench.
CAUTION
Be extremely careful when
repairing fittings on quartz
tube ( 13 ). The quartz tube
is very fragile and easily
broken.
5. Check that all fittings on the
Calibration Sample Filter ( 15 )
Ozone Generator ( 19 ) Selector
Solenoid ( 20 ) Reaction Chamber
( 21 ) flow gauge/Needle Valve
Assembly ( 22 ) and evacuation
pump ( 18 ) are tight. If not,
tighten any loose fittings,
reinstall top cover, and go to
step I.
16. Disconnect exhaust tubing ( 16 )
from pump ( 18 ).
17. Disconnect inlet tubing ( 14 )
from pump ( 18 ).
18. Connect inlet tubing ( 14 ) to
pump exhaust outlet ( 17 ).
NOTE
If inlet tubing will not reach
pump exhaust outlet, replace
tubing with an 18" length of
vinyl tubing.
WARN ING
Use extreme caution when
performing check. Power
is applied to the monitor
and electric shock is
possible during this
procedure.
11
u u
13
7-31
-------
Section 7 Corrective Maintenance
19. Set POWER switch ( I ) to ON.
20. Seal off air flow at Calibration
Sample Filter inlet ( 3 ).
21. Apply Liquid Leak Detector
solution to each fitting of the
Calibration Sample Filter (9),
Ozone Generator (15), Selector
Solenoid (8), Reaction Chamber
(16), flow gauge/needle valve
assembly (17), and evacuation
pump (14).
22. Check that bubbles do not
appear on any fittings. If
bubbles appear, repair or
replace defective fitting and
go to step 84.
23. Set POWER switch ( I ) to OFF.
24. Replace Selector Solenoid Valve
( 8 ).
25. Disconnect inlet tubing
from pump exhaust outlet (13 ).
26. Connect inlet tubing ( 6 ) to
pump i nlet (12 ).
Note
If an 18" length of vinyl tubing
was substituted in step 18, reconnect
the original tubing at this time.
27. Connect exhaust tubing (10)
to pump exhaust outlet (13).
28. Reinstall top cover and secure
with screws.
29. Go to step I.
30. If servicing MOD C, go to
step 66.
31. Set POWER switch ( I ) to OFF.
32. Remove four screws ( 5 ) and top
cover ( 4 ).
CAUTI ON
To avoid damage to fittings in
monitor, teflon fittings
should be tightened finger
tight. Metal fittings should
be tightened finger tight plus
3/4 turn with a wrench.
OZONE MONITOR
03 CONCENTRATION
=^F.
«o ao
,*'
\
%
Q>
PULL TO SAMPLE
TEST PLUS
ETHYLENE
o) Co;
A A ^ ^
\W/ I ) CALIBRATE ZERO
— ADJUST ADJUST
7-32
-------
Section 7 - Corrective Maintenance
33. Check that fittings between
SAMPLE INLET fitting (II ) and
solenoid valve ( 7 ) are tight.
If not, tighten any loose fittings
ReinstalI top cover and go to
step I.
34. Disconnect exhaust tubing (10 )
from pump (14 ).
35. Disconnect inlet tubing ( 6 )
from pump (14 ).
36. Connect inlet tubing ( 6 ) to
pump exhaust outlet (13 ).
NOTE
If InIet tub ing will not reach
pump exhaust outlet, replace
tubing with an 18" length
of vinyl tubing.
8
WARN ING
Use extreme caution when
performing check. Power Is
applied to the monitor and
electric shock is possible
during this procedure.
37. Set POWER switch ( I ) to ON.
38. Seal off air flow at SAMPLE INLET
fitting ( 2 ).
39. Apply Liquid Leak Detector solution
to each fitting between SAMPLE
INLET fitting (II ) and solenoid
vaIve ( 7 ).
40. Check that bubbles do not
appear on any fittings. If
bubbles appear, repair or
replace defective fitting and
go to step 84.
41. Set POWER switch (I) to OFF.
42. Replace Selector Solenoid
Valve (8).
7-33
-------
Section 7 - Corrective Maintenance
43. Disconnect inlet tubing (3)
to pump inlet (4).
42. Set POWER switch ( I ) to OFF.
43. Disconnect inlet tubing ( 3 )
from pump exhaust outlet ( 2 ).
44. Connect inlet tubing ( 3 ) to
pump inlet ( 4 ).
NOTE
If an 18" length of vinyl tubing
was substituted in step 36,
reconnect the original tubing
at this time.
45.
Connect exhaust tubing ( 5 ) to
pump exhaust outlet ( 20.
46. Reinstall top cover and secure
with screws.
47. Go to step I.
48. Set POWER switch ( 6 ) to OFF.
7-34
-------
Section 7 - Corrective Maintenance
49. Remove four screws (8 ) and
top cover ( 7 ).
CAUTION
To avoid damage to fittings in
monitor, teflon fittings should be
tightened finger tight. Metal
fittings should be tightened
finger tight plus 3/4 turn with
a wrench.
CAUTION
Be extremely careful when
repairing fittings on quartz
tube ( 9 ). The quartz tube
is very fragile and easily
broken.
50. Check that all fittings on the
calibration sample filter (II)
ozone generator (14) selector
solenoid (15) reaction chamber
(16) flow gauge/needle valve
assembly (I7i and evacuation
pump (12) are tight. If not,
tighten any loose fittings,
reinstall top cover, and go to
step I.
51. Disconnect exhaust tubing ( 13 )
from pump ( 12 ).
52. Disconnect inlet tubing ( |0 ) from
pump ( |2 ).
7-35
-------
Section 7 - Corrective Maintenance
53. Connect 8" length of teflon
tubing to pump exhaust fitting
(9).
54. Connect other end of tubing to
fitting on inlet tubing ( 4 ).
WARN ING
Use extreme caution when
performing check. Power
is applied to the monitor
and electric shock is possible
during this procedure.
55. Set POWER switch ( I ) to ON.
56. Seal off air flow at Calibration
Samp Ie F iIter i nIet ( 5 ).
57. Apply liquid leak detector
solution to each fitting of the
calibration sample filter (5),
ozone generator (13), selector
solenoid (3), reaction chamber
(14), flow gauge/needle valve
assembly (15), and evacuation
pump (6).
58. Check that bubbles do not
appear on any fittings. If
bubbles appear, repair or
replace defective fitting
and go to step 90.
7-36
-------
Section 7 Corrective Maintenance
59. Set POWER switch ( I ) to OFF.
60. Replace Selector Solenoid Valve
( 3 ).
61. Disconnect 8" teflon tubing from
pump ( 6 ) and inlet tubing
( 4 ).
62. Connect inlet tubing ( 4 ) to
pump inlet (10 ).
63. Connect exhaust tubing ( 8 ) to
pump exhaust outlet ( 9 ).
64. Reinstall top cover and secure
with screws.
65. Go to step I.
66. Set POWER switch ( I ) to OFF.
67. Remove four screws (II ) and
top cover (12).
CAUTION
To avoid damage to fittings In
monitor, teflon fittings should
be tightened finger tight.
Metal fittings should be
tightened finger tight plus
3/4 turn with a wrench.
68. Check that fittings between
SAMPLE INLET FITTING (7) and
solenoid valve (2) are tight.
If not, tighten any loose
fittings, reinstall top cover,
and go to step I.
7-37
-------
Section 7 - Corrective Maintenance
71. Connect 8" teflon tubing to pump
exhaust fitting (I ).
72. Connect other end of tubing to
fitting on inlet tubing (6).
WARN ING
Use extreme caution when
performing check. Power
is applied to the monitor
and electric shock is possible
during this procedure.
73. Set POWER switch (3) to
ON.
74. Seal off air flow at SAMPLE
INLET fitting (9).
75. Apply Liquid Leak Detector
solution to each fitting
between SAMPLE INLET fitting
( 9-) and SELECTOR SOLENIOD
VALVE ( 4).
76. Check that bubbles do not
appear on any fittings. If
bubbles appear, repair or
replace defective fitting
and go to step 90.
77. Set POWER switch ( 3 ) to OFF.
78. Replace Selector Solenoid
Valve ( 5 ).
79. Disconnect 8" teflon tubing
from pump ( 8 ) and inlet
tubing ( 6 ).
80. Connect inlet tubing ( 6 )
to pump i nIet ( 2 ).
81. Connect exhaust tubing (10)
to pump exhaust outlet (I).
7-38
-------
Section 7 - Corrective Maintenance
82. Reinstall top cover and secure
with screws.
83. Go to step I.
84. Set POWER switch (II ) to OFF.
85. Disconnect inlet tubing (13 )
from pump exhaust outlet ( 12 ).
86. Connect inlet tubing (13) to
pump inlet (14 ).
NOTE
If an 18" length of vinyl
tubing was substitued in
step 36, reconnect the
original tubing at this time.
87. Connect exhaust tubing (|5 >
to pump exhaust outlet (12 )•
88. Reinstall top cover and secure
with screws.
89. Go to step I .
90. Set POWER switch ( 3 ) to OFF.
91. Disconnect 8" teflon tubing from
pump ( 8 ) and inlet tubing ( 6 ).
92. Connect inlet tubing ( 6 ) to pump
inlet ( 2 ).
93. Connect exhaust tubing ( 10 ) to
pump exhaust outlet ( I ).
94. Reinstall top cover and secure witl
screws.
10
95. Go to step 1.
OZONE MONITOR
03 COMCEHTBATION
CALIBRATE
HBO I
AMBIENT I I
.2 I I
' .S I >
PULL TO SAUTLE
TEST PLUS
I ETHYLEHE
Co) Co)
CALIBRATE
ADJUST
ZERO
ADJUST
FULL SCALE MODE
RANQE SELECTOR SELECTOR
10 SEC
1SEC | 40SEC
TIME
CONSTANT
SELECTOR
7-39
-------
SECTION 8. SUPPORTING DATA
SCHEMATICS
Introduction
The pages which follow contain
Electronic Schematic diagrams for
Mods A, B, and C.
Activity Index
Schematic
Mod A and B
Mod C
Mod C - Printed
circuit board
schematics begin
8-3
8-5
8-7
-------
Section 8 - Supporting Data
NOTES:
A. UNLESS OTHERWISE SPECIFIED, ALL
CAPACITORS ARE IN MICROFARADS.
B. UNLESS OTHERWISE SPECIFIED, ALL
RESISTORS ARE IN OHMS.
EXTERNAL JUMPER
-110V REGULATED OUTPUT
ELECTROMETER AMPLIFIER
CARD (FIGURE Ul .IIOV
INPUT
UNREGULATED INPUT! V
POSITIVE
UNREGULATED
ALARM AND VALVE
«- CONTROL CARD
S§ (FIGURE 9
I TIME CONSTANT
| SELECTOR
M 13 -j
N/C N/C
,. .. ,' J2
PHOTOMULTIPLIER
TEMPERATURE '
I '
I OZONE
I GCNERATOR
I
THERMOELECTRIC
COOLER
CONTROL CARD
(FIGURE 8 I
THERMISTOR INPUT
DETfCTOR CELL (FIGURE 131
CONTROL 9^
POSITIVE J2
Figure 6. Ozone Mohitor Schematic Diagram - Mod C
8-5/6
-------
Section 8 - Supporting Data
I I I l
Figures. Ozone Monitor Schematic Diagram Mods A n B
8-3/4
-------
Section 8 - Supporting Data
-w-
CH 1
IN24M
12 VAC
INPUT
III
510
Cl
100
SK
CR2
• IN823
01
rzZLj°
€~>
101
CMS
•AA/V
78 K
AAAr
•>
8 -nCRMSTOR
R3
4.99 K
R7
TEMPERATURE
CONTROL
OUTPUT
posmvE
VOLTA9E
INPUT
NOTE
I. UNLESS OTHERWISE SPECIFIED—
(A) ALL RCSerrOA VALUES ARE IN OHMS.
(81 ALL CAMQTOR VALUE ARE M MCMO-
FARAOS.
Figure 7. Photomultiplier Temperature Control Card Schematic - Mod C
8-7
-------
Section 8 Supporting Data
W-RED» T)
19
ETHYLENE
SOLENOID
CONTROL
SELECTOR'
SOLENOID
CONTROL
A— OH.^35 OTHERWISE SPECIFIED. ALL CAPACITORS
AP-. -N MICROFARADS
B - UN.cbf OTHERWISE SPECIFIED. ALL RESISTORS
AOT IN OHMS.
8-8
Figure 8. Alarm and Valve Control Card Schematic Diagram - Mod C
-------
Section 8 =• Supporting Data
OUT
NOTES:
A-UNLESS OTHERWISE SPCCIFCO, ALL CAPICITOftS ARE IN
MCROFARAOS.
B-UNLESS OTHERWISE SPECIFIED, ALL RESISTORS ARE H
OHttS.
Figure 9. AC Current Regulator Card Diagram - Mod C
8-9
-------
tion
Supporting Data
NOTES
A UNLESS CmCRWISE SPECFED.AU.
CAPACITORS ARE M MCROBUUOS
B IM.ESS OThCRWISE SPEOFIED.AU-
RESSTORS ARE M OHMS
3-10
Figure 10. + 110 Volt Power Supply Regulator Card Schematic - Mod C
-------
Section 8 - Supporting Data
INPUT
IS •IK)
»-4 OUTPUT
-110
>.O COMMON
NOTES
A-UNLESS OTHERWISE SPECIFIED. ALL CAPACITORS ARE IN
MICROFARADS
B-UNLESS OTHERWISE SPECIFIED ALL RES.STORS ARE IN
OHMS
•gure 11. Electrometer Amplifier Card Schematic Diagram - Mod C
8-I
-------
Section 8 - Supporting Data
SUPPORTING EQUIPMENT
Introduction
The items of support equipment
required for the Ozone Monitor
are described below. The items
are grouped according to support
subsystems. Those items which
are supplied with the Monitor
are so noted.
Ethylene Delivery Subsystem
Ethylene, CP Grade, in
high pressure cyl inder.
Ethylene Regulator, two-
stage, Harris Model 92-IOOA
or equivalent.
Tubing, stainless steel,
1/8 O.D., 10 ft. (SUPPLIED).
Orifice, ethylene, part
number A4334 (SUPPLIED).
Connector, 1/8" tubing to
1/4" FPT, part number
005364-22 (SUPPLIED).
External Ozone Generator Subsystem
Either:
Air Lab grade, in high
pressure cylinder.
Air Regulator, two stage,
CGA540.
OR
Air pump, laboratory type
Fisher Scientific Model
1-093 or equivalent.
Filter, activated charcoal/
Indicating silica gel/molecular
sieve.
Needle valve, with hose
fittings, Hoke Co. Model
4RB286 or equivalent.
Flowmeter (with calibration
curve), capable of measuring
airflow in the range of 2-15 I/
minute within + 5%.
Ozone Generator. The ozone
generator should conform
to the design as described
in Technical Note 585,
National Bureau of Standards
January, 1971. Government
Printing Office Catalog No.
CI3. 46:585.
Manifold, glass, one' inlet,
minimum of three outlets,
I" O.D., 1/4" inlet/outlets.
Chart Recorder Subsystem
Chart Recorder, single
channel, giving full scale
response at lOOmV.
Cable, signal ,
part number 55
(SUPPLIED).
8f long,
443
Sample Input/Exhaust
Tubing, 1/4" O.D.,
teflon, 10' long,
(SUPPLIED).
Filter, teflon, part
number 007163, (SUPPLIED).
Elements, teflon filter,
I package, part number
007230 (SUPPLIED).
Tubing, Plastic :0r long
part number 45077-5,
(SUPPLIED).
Samp I ing Train
Absorbers. Kontes Glass
Co. Model No. 24/40.
or equivalent, 2 required.
Trap, Fisher Scientific
Model No. 10-180 or
equivalent, loosely filled
with gl ass wool .
Flowmeter (with calibration
curve) capable of measuring
sample flow in the 0-1
I/minute range within ± 2.
8-13
-------
Section 8 Supporting Data
Needle valve, with hose
fittings, Hoke Co. Model No.
4RB286 or equivalent.
Air pump, laboratory type,
capable of drawing I I/m
through the absorbers,
Fisher Scientific Model
No. 1-093, or equivalent.
P i pette, 10 mI capac i ty,
Fisher Scientific Model
No. 13-650 L, or equivalent
Spectrophotometer, capable
of measuring absorbance at
352 NM.
Spectrophotometer cells,
matched pair, suitable to
the Spectrophotometer in
use at 352 nm.
General
Data Sheet (SUPPLIED).
Fuse, 4 amp, 3AG part number
42982 (SUPPLIED).
Bubblemeter Kit, part number
5511183-1.
Timer, capable of reading
to the nearest second.
Tubing, thick walled, rubber
1/4" ID, 10", Fisher
Scientific No. I4-I78-5D or
equ ivaIent.
Utility stands, Fisher
Scientific Model No.
14-675, or equivalent,
four required.
UtiIity stand cI amps,
Fisher Scientific Model
No. 5-766 or equivalent,
six required.
8-14
-------
PRIMARY CALIBRATION
Section 8 Support!nq Data
Discussion
The Federal Register (I) speci-
fied the neutral buffered po-
tassium iodide (Kl) method (2,
4) as a method to
be employed in the primary
calibration of the ozone moni-
tor. The Environmental Pro-
tection Agency has published
guidelines (3) for using the Kl
method in a primary multipoint
calibration procedure. This pro-
cedure involves the use of the
external ozone generator to pro-
duce ozone at about 0, 10, 20, 40,
and 80 percent of the ozone moni-
tor full scale capacity. The
monitor and the Kl sampling train
tap from a manifold at the output
side of the generator and ozone
concentration is measured for
each of the five points by bubbling
the sample through Kl absorbing
reagent and reading the absorbance
of the exposed reagent
using a spectophotometer. Cali-
bration curves are then prepared
for both the external ozone gener-
ator and the ozone monitor. The
check of the external ozone gener-
ator, page 3-3, employs the Kl
sampling train and a simplified
version of the Kl reference
method.
Primary Multipoint Calibration
is required when:
I. The monitor is first
purchased.
2. The monitor has under-
gone maintenance which
might affect response
character!sties.
3. The monitor has been
moved to a site where
ambient atmospheric
pressure is signifi-
cantly different from
the ambient pressure at
the calibration site.
4. An audit indicates that
the mon Ftor does not meet
desired performance standards
It is recommended that at least
five primary calibrations be
performed, over a period of at
least two weeks. The data from
these calibrations should then
be used to construct an average
calibration curve for the ozone
generator and the monitor.
Primary calibration of this
Ozone Monitor should be performed
only by a chemi st or qua Ii fied
chemical technician.
Following Primary Multipoint
Calibration (as occasioned by
any of the above reasons),
routine calibrations can be per-
formed by following the cali-
bration procedure, page
for secondary calibration, and
the procedure on page 4-1 for
daily span and zero checks.
References
I. Environmental Protection
Agency. National Primary
and Secondary Ambient Air
Quality Standards. Federal
Register. Volume 36~
Number 228, NovembeT 25,
1971 .
Intersociety Committee.
Methods of air sampling
and analysis. Washington,
D.C.: American Pub Iic
Health Association, 1972,
p. 351.
8-15
-------
Section 8 Supporting Data
3. Smith, F., & Nelson, A. C., Jr.
Guidelines for development
of a quality assurance
program. Reference method
for Measurement of Photo-
chemical Oxidants. Research
Triangle Park, No. Car.:
Research Triangle Institute,
June 1973. (EPA-R4-73-028c)
U. S. Department of Health,
Education, and Welfare.
Selected methods for the
measurement of air pollutants.
PHAP #999-AP-ll., 1965, pp. DI-3,
8-16
-------
Section 8 - Supporting Data
REPLACEMENT PARTS DATA
When ordering parts for your Ozone
Monitor, be sure to specify the
following information:
- Model Number (This instrument
is Model 8002)
- Your Ozone Monitor Serial
Number
- Part Name
- Reference Designator
- Part Number
Parts should be ordered from:
The Bendix Corporation
Process Instruments Division
Post Office Drawer 477
Ronceverte, West Virginia 24970
Attention: B. Morrison
Telephone: (304) 047-4358
Telex: 88-5456
Should it be necessary to return
the Ozone Monitor or a component
to the manufacturer for repair,
contact Mr. H. Henderson at the
above location, prior to shipment,
for information regarding costs,
shipping, and estimated turn-around
time. Ship with a note describing
the symptoms encountered to the
above address.
BENDIX OZONE MONITOR, MODEL 8002, PARTS LIST
Mod
C
A,B
Al
Al
Al
Al
Al
Al
Al
Al
C
Al
Al
Al
Al
Al
C
C
C
C
C
C
Part Name
Reference
Designator
Capacitors
Detector Cell Assembly
Diodes
Part Number
Cl
Cl
C2
C3
C4
C5
C6
C7
C8
C9
CIO
CR1
CR2
CR3
CR4
CR5
CR6
CR7
CR8
CR9
CR10
007200
007201
007201
007198
007200
005005-4
005497
005497
007184
007184
44320
5513695
1N2484
1N2484
007040
007040
1N2484
1N2484
1N2484
1N2484
1N462
1N462
8-17
-------
Section 8 - Supporting Data
Parts List (Continued)
Mod
Part Name
Reference
Designator
Al 1
C
Al
Al
Al
Al
A
Al
Al
Al
Al
C
Al 1
C
C
Al 1
Al 1
C
Al 1
Al 1
Al 1
Al 1
C
C
Al 1
Al 1
A,B
C
Al 1
Al 1
A,B
C
A,B
Al 1
Al 1
C
A,B
Al
Al
Al
Al
Al
Al
Al
Al
Al
Al
Al
Al
Element, Sample Filter
Fan, Cool ing
Filter, Calibration Sample
Fi Iter, Ethy lene
Fi Iter, Sample
Flowmeter
Flowmeter
Full Scale Range Selector
Fuse
Gauge, Ethy lene Pressure
Generator, Internal Ozone
Holder, Calibrate Lamp
Holder, Fuse
Holder, Zero Lamp
Lamp, Cal ibrate
Lamp, Pi lot
Lamp, Ultraviolet
Lamp, Zero
Meter, 03 Concentration
Micrometer, Calibrate Adjust
Micrometer, Zero Adjust
Mode Selector
PC Board, AC Current Regulator
PC Board, Alarm and Control Valve
PC Board, Electrometer Amplifier
PC Board, Photo-Multiplier Temp. Cont.
PC Board, 110 Volt Power Supply
PC Board, 110 Volt Power Supply/Regulator
Potentiometer
Potentiometer, Calibrate Adjust
Pump/Fan Assembly
Pump, Evacuation
Regulator, Constant Voltage
Regulator, Ethy lene Pressure
Resistors
S3
FI
DS2
DS3
S2
R17
R14
Rl
R2
R2
R3
R4
R5
R6
R7
R8
R9
RIO
Rll
R12
R13
R15
Part Number
007230
007293-1
5514859
007590-1
007163
007152
007141
44726-2
5514642
42442
NE-51
007138
NE-51
007219
44626
44626
5513085
5512578
5511082
551301^
5511109
5511103
44861
44838
007196-1
007194
43468-1
RN60C1001C
RN60C1003C
RN60D1004F
44666-6
RN60D1004F
RN60C5002C
RN60C3002C
RN60C1002C
RN60C5001C
RN60C3001C
RN60C1001C
RN60C1001C
RN60D1004F
RN60C3002C
RN60C1002C
8-18
-------
Parts List (Continued)
Mod
All
Al I
Al I
A,B
A,B
Al I
C
C
C
C
C
C
C
C
C
C
C
C
Al I
Al I
Al I
Al I
C
Al I
Al I
Al I
Al I
C
C
C
A,B
Al
Al
Al
Al
Al
Al
Al
C
Part Name
Resistors (continued)
Switch, Power
Time Constant Selector
Transformer, Filament
Transformer, Power
Transformer, Power
Transformer (UV Lamp)
Transistors
Triac
Tube, CapiIlary
Tube, Quartz
Valve Assembly, Reed
Valve, Diverter
Valve, Ethyiene Solenoid
Valve, Needle
Valve, Selector Solenoid
Varistor
Reference
Designator
R16
R18
R19
R20
R21
R22
R23
R24
R25
R26
R27
R28
R29
R30
R31
R32
R33
R34
SI
S4
T3
T4
Tl
Ql
Q2
Q3
Q4
Q5
Q6
R35
Part Number
RC42GF272J
44666-7
RC42GF220J
RC07GF.106F
007280-1
RC07GF122J
RC07GF122J
RC07GF122J
RC07GF622J
RC07GF622J
RC07GF622J
RC07GF200J
RC07GF200J
RC07GF200J
RN60D1004F
RN60D1000F
44023
42660
006768
005294
007139
2N5175
007675
D44H2
006766
MJE371
2N3638A
2N3638A
2N3638A
A01102
007187
5512042
007172
005020-2
007167
007568
8-19
-------
Section 8 - Supporting Data
TECHNICIAN REQUIREMENTS
In order to perform the procedures
in this manual the user should
have the following skills and
knowledge:
I. Knowledge of the tools and 8.
materials required for main-
taining the instrument suffi-
cient to permit identifying,
locating, and correctly
using them. (A list of 9.
required tools and materials
is included with each proce-
dure. )
2. Ability to detect worn,
corroded, dirty, broken, or
otherwise defective component 10.
parts by visual, tactile, or
auditory examination and com-
parison to properly func-
tioning parts.
3. Ability to coordinate adjust-
ment-screw or hand-knob move-
ments, e.g., adjusting a knob
until a desired meter reading
is obtained.
Ability to detect leaks in
tubing and piping connections
using leak-detection liquid.
Ability to detect pinched, 12,
ruptured, or otherwise
defective tubing, and in-
correct tubing connections.
Ability to connect/disconnect
standard tubing and piping
connectors, achieving leak- 13,
proof connections and without
injury to threads. This
includes the use of teflon
tape, as appropriate.
Ability to connect/disconnect 14
standard electrical connectors.
This includes identifying wires
to facilitate correct connection,
and achieving tight connections
without damage to the leads or
term!nals.
Ability to use a volt-ohm meter
or multimeter to achieve accurate
circuit measurements without
damage to the instrument.
Ability to solder and unsolder
electrical terminals, making a
good electrical and mechanical
connection without shorting or
grounding the connection, or
damaging circuit components.
Ability to accurately read and
interpret (using calibration
curves, as required) the fol-
lowing:
a. Regulator pressure gauges
b. Flowmeters
c. Micrometer dials
d. Instrument meters
e. Strip charts
II. Ability to plot a line of best
fit using the least squares
technique, given a step-by-
step procedure.
Ability to make computations
involving several variables,
given a step-by-step procedure
showing individual addition,
subtraction, multiplication,
and division operations.
The ability to handle caustic or
otherwise dangerous reagents
without injuring personnel,
damaging equipment, or contami-
nating the reagent.
Ability to accurately obtain
correct volumes of solutions
using apparatus such as a
pipette, syringe, volumetric
flask, or burette.
8-2
-------
Section 8 Supporting Data
15. Ability to operate a spectro-
photometer and make accurate
measurements of sample absor-
bances.
16. Ability.to assemble sample
apparatus with each component
in proper sequence, using butt-
to-butt or tygon connections,
and si Iicone or fluorocarbon
grease as appropriate to create
a leakproof assembly.
-------
TECHNICAL REPORT DATA
(Please read Instructions on the reverse before completing)
1. REPORT NO.
FPA-ASn/3-74-Q39
2.
3. RECIPIENT'S ACCESSION-NO.
4. TITLE AND SUBTITLE
Fully Proceduralized Instruction Manual for a
Chemiluminescent Ozone Monitor
5. REPORT DATE
1Q7A
6. PERFORMING ORGANIZATION CODE
7. AUTHOR(S)
Richard L.
Dueker
8. PERFORMING ORGANIZA", ION REPORT NO.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Applied Science Associates
Box 158
Valencia, Pennsylvania 16059
10. PROGRAM ELEMENT NO.
11. CONTRACT/GRANT NO.
12. SPONSORING AGENCY NAME AND ADDRESS
Environmental Protection Agency
Office of Air and Waste Management
Office of Air Quality Planning and Standards
Research Triangle Park, N.C. 27711
13. TYPE OF REPORT AND PERIOD COVERED
FINAL
14. SPONSORING AGENCY CODE
15. SUPPLEMENTARY NOTES
16. ABSTRACT
The report is a "Fully Proceduralized Instruction Manual for a Chemiluminescent
Ozone Monitor." The manual was written using the Job Performance Aid (JPA)
concept. It was produced to demonstrate the application of the JPA type fully
proceduralized concept to automatic air monitoring instrument manuals. The
concept is one of the latest advancements in technical manuals and is basically
an aid in the performance of the job of maintenance, troubleshooting, and re-
pairing continuous air monitors.
17.
KEY WORDS AND DOCUMENT ANALYSIS
DESCRIPTORS
Manuals
Instructions
Monitors
Air Pollution
Ozone
b.IDENTIFIERS OPEN ENDED TERMS
Bendix Model 8002
Maintenance and
Troubleshooting
COSATi Field Group
13 B
14 B
13. DISTRIBUTION STATEMENT
Release unlimited,
19 SECURITY CLASS This
Unclassified
NO OF PAGES
379
20 SECURITY CLASS ,7Vi.-f r-Cc
Urclassi fied
EPA Form 2220-1 (9-73)
8-23
-------
INSTRUCTIONS
1. REPORT NUMBER
Insert the EPA report number as it appears on the cover of the publication.
2. LEAVE BLANK
3. RECIPIENTS ACCESSION NUMBER
Reserved for use by each report recipient.
4. TITLE AND SUBTITLE
Title should indicate clearly and briefly the subject coverage of the report, and be displayed prominently. Set subtitle, if used, in smaller
type or otherwise subordinate it to main title. When a report is prepared in more than one volume, repeat the primary title, add volume
number and include subtitle for the specific title.
5. REPORT DATE
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approve!, date of preparation, etc.).
6. PERFORMING ORGANIZATION CODE
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7. AUTHOR(S)
Give namc(s) in conventional order (John R. Doe, J. Robert Doe, etc.). List author's affiliation if it differs from the performing organi-
zation.
8. PERFORMING ORGANIZATION REPORT NUMBER
Insert if performing organization wishes to assign this number.
9. PERFORMING ORGANIZATION NAME AND ADDRESS
Give name, street, city, state, and ZIP code. List no more than two levels of an organizational hirearchy.
10. PROGRAM ELEMENT NUMBER
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11. CONTRACT/GRANT NUMBER
Insert contract or grant number under which report was prepared.
12. SPONSORING AGENCY NAME AND ADDRESS
Include ZIP code.
13. TYPE OF REPORT AND PERIOD COVERED
Indicate interim final, etc., and if applicable, dates covered.
14. SPONSORING AGENCY CODE
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15. SUPPLEMENTARY NOTES
Enter information not included elsewhere but useful, such as: Prepared in cooperation with, Translation of. Presented at conference of.
To be published in. Supersedes, Supplements, etc.
16. ABSTRACT
Include a brief (200 words or less) factual summary of the most significant information contained in the report. If the report contains a
significant bibliography or literature survey, mention it here.
17. KEY WORDS AND DOCUMENT ANALYSIS
(a) DESCRIPTORS - Select from the Thesaurus of Engineering and Scientific Terms the proper authorized terms that identify the major
concept of the research and are sufficiently specific and precise to be used as index entries for cataloging.
(b) IDENTIFIERS AND OPEN-ENDED TERMS - Use identifiers for project names, code names, equipment designators, etc. Use open-
ended terms written in descriptor form for those subjects for which no descriptor exists.
(c) COSATI FIELD GROUP - Field and group assignments are to be taken from the 1965 COSAT1 Subject Category List. Since the ma-
jority of documents are multidisciplinary in nature, the Primary Field/Group assignmcnt(s) will be specific discipline, area of human
endeavor, or type of physical object. The application(s) will be cross-referenced with secondary Field/Group assignments that will follow
the primary posting(s).
18. DISTRIBUTION STATEMENT
Denote relcasability to the public or limitation for reasons other than security for example "Release Unlimited." Cite any availability to
the public, with address and price.
19. &20. SECURITY CLASSIFICATION
DO NOT submit classified reports to the National Technical Information service.
21. NUMBER OF PAGES
Insert the total number of pages, including this one and unnumbered pages, but exclude distribution list, if any.
22. PRICE
Insert the price set by the National Technical Information Service or the Government Printing Office, if known.
8-24
EPA Form 2220-1 (9-73) (Reverse)
------- |