&EPA EPA/600/R-15/116 United States Environmental Protection Agency DYLOS DC1100 Operating Procedure Office of Research and Development National Exposure Research Laboratory ------- EPA/600/R-15/116 | May 2015 | www.epa.gov/ord DylosDCHOO Citizen Science Operating Procedure Ron Williams National Exposure Research Laboratory Office of Research and Development U.S. Environmental Protection Agency Research Triangle Park, NC, USA 27711 Amanda Kaufman ORISE Participant Oak Ridge Institute for Science and Education Oak Ridge, TN, USA 37831 Sam Garvey Alion Science and Technology Research Triangle Park, NC 27709 ------- CITIZEN SCIENCE Contents DylosDCHOO 1 What Is PM? 1 What You Will Need 1 I mportant Considerations 2 Preparing the Device 2 Making the Connections 2 Installing the Software 2 Verifying Proper Operation 5 Routine Data Collection 6 Processing Data 7 For Additional Help 10 ------- ------- CITIZEN SCIENCE Dylos DC 1100 The Dylos DC1100 air quality monitor measures particulate matter (PM) to provide a continuous assessment of indoor air quality. The unit counts particles in two size ranges: large and small. According to the manufacturer, large particles have diameters between 2.5 and 10 micrometers (urn), where a micrometer is 171000th of a meter. Small particles have diameters from 0.5 urn up to 2.5 urn. The DC1100 stores up to 30 days of air quality history. This operating procedure explains what you need to do to collect quality PM data using the Dylos DC1100 for your monitoring project. What Is PM? PM pollution is a mixture of particles of various sizes such as soot, smoke, dirt, and dust. Many pollutant particles that make their way indoors are generated and released into the air from outdoor sources such as power plants, industrial processes, and automobiles. Living near a major roadway, for instance, can significantly increase PM exposure. Other particles are generated within the home from activities such as cooking or burning wood in fireplaces. Small particles also include mold and bacteria, and larger particles include pollen and dust mite casings. PM can have both short- and long-term health effects, with the smallest particles posing the greatest health risk. Effects of exposure to PM pollution include increased respiratory (breathing) symptoms such as coughing and difficulty breathing as well as aggravated asthma or other existing respiratory and cardiovascular conditions. For more information on particle pollution, visit the U.S. Environmental Protection Agency's Web site at http://www.epa.gov/airquality/particlepollution/index.html. What You Will Need DC1100 PM sensor 9-volt DC (battery) adapter 9-pin serial cable Dylos Logger software on accompanying compact disc (CD) Computer with the Windows operating system and an RS-232 serial communication port connection Microsoft Excel Spreadsheet Software (2003 or later) or other comparable spreadsheet software ------- CITIZEN SCIENCE Important Considerations *!• The Dylos DC1100 must be connected to both AC (electrical wall outlet) power and a computer. *t* The unit requires use of the Data Logger software to record the time of data collection. *J* The DC1100 cannot be calibrated by the user. It is precalibrated by the manufacturer, and the calibration is good for 1 year from the time of purchase. The device should be returned to the manufacturer for calibration annually. *t* The Dylos has no user-serviceable parts. It must be returned to the manufacturer when repairs are required. Preparing the Device Before collecting data with the DC1100, you need to set up the device by connecting it to a computer with the Dylos DC1100 software running and then you can verify its operation. The procedures in this section will guide you through the proper setup of your device. Making the Connections The DC1100 does not contain a battery and therefore must be connected to AC power using the 9-volt DC adapter. For data collection, the Dylos DC1100 must be connected to a computer by an RS-232 serial connection, which has a 9-pin serial cable. Figure 1 shows these connections on the DC1100. Power port with DC adapter cable attached Installing the Software While the Dylos DC1100 can operate and save its data without using the accompanying Dylos Logger software, the time of data collection can only be recorded when using the logger software since the software uses the computer's clock to record the time. Therefore, we recommend you install the Dylos Logger software from the CD that comes with the sensor onto a computer running the Windows operating system before collecting data with the DC1100. The Dylos Logger software can also be downloaded from the Dylos Corporation's web site at http://www.dvlosproducts.com/downloads.html. The procedures for Dylos DC1100 data collection and retrieval assumes that you have already installed the software. ------- CITIZEN SCIENCE Procedure: Install Software from CD 1. Insert the CD, double click 'AutoPlay', and click 'Open folder to view files'. AutoPlay (H) I S3 . 4 DVD/CD-RW Drive (D:) DylosLogger 1.6 General options (Open folder to view files using Windows Explorer View mere AutcPlav options in Control Panel Organize T Close session Eject Hams ..-;" Favorites • Desktop $ Downloads •^ Recent Places 2. Double click 'Dylosl_ogger1.6' (Windows Installer file type). -*Libraries ;*• Computer £, Windows (CO O DVD/CD-RW Drive (I _ KINGSTON (E:) i- Network Date modified Type 1/16/2012 5:48 PM Adobe Acrobat D,.. 11/12/201112:05 ... Windows installer... 3. Click 'Next' on the installation wizard welcome screen to proceed with setup. jJJ) Dylos Logger 1.6 Welcome to the Dylos Logger 1.6 Setup Wizard The installer will guide you through the steps required to install Dylos Logger 1.6 on your computer. Click "Newt" to continue. WARNING: This computer program is protected by copyright law and international treaties. Unauthorized duplication or distribution of this program, or any portion of it, may result in severe civil or criminal penalties, and will be prosecuted to the maximum extent possible under the law. ------- CITIZEN SCIENCE 4. Click 'Browse', select the path and folder where the software should be installed, and then click 'Next'. 5. When the download is complete, click 'Next' on the 'Confirm Installation' screen. jgl Dylos Logger 1.6 Select Installation Folder The installer will in Jail D.','!o? Logger 1.6 in the following folder. To install in this folder, click "Next". To install to a different n below or click "Browse". ;tstmg folder, enter o Folder: | CAProgram Rles\Dylos LoggerV You can install fhe software on I he following drives: Volume SC: Disk Sizi 70Gi jgJ Dyios Logger 1.6 Confirm Installation The installer is ready to install Dylos Logger 1.6 on your computer. Click "Next" to start the installation. 6. Click 'Close' when finished to exit the installation process. Installation Complete Dylos Logger 1.6 has been sucessfully installed. Click "Close" to exit. ------- CITIZEN SCIENCE Verifying Proper Operation Before collecting data, make sure your DC1100 is set up and operating properly. This procedure begins a brief period of data collection to ensure the device is working. Procedure: Verify Proper Operation 1. Press the power button to turn on the device. The startup screens shown in Figures 2 and 3 will display for a few seconds before the sampling screen appears (Figure 4) and the unit begins taking measurements. 2. Open the Dylos Logger software by double clicking the desktop shortcut (Figure 5). 3. In the 'Port' drop-down menu shown in Figure 6, select the communications port connecting the device to the computer. 4. Select 'Continuous' in the 'Stop After' drop-down menu (Figure 6). 5. Press the 'Record' button ( 9) (Figure 6) and allow the device to record for at least 1 minute to verify proper operation. When data are being recorded, a line will be updated each minute in the Data Display field shown in Figure 6. The unit is ready for use. 6. Press the Record button a second time to end the recording. ------- CITIZEN SCIENCE Communications port selection Data display field [./. te 'A, ts |f.'. iSs ifa W 0»pl»Poio4 ll 3 1 06 I |02- 00 - 02 00 Figure 6 MO/2012 »13fW Routine Data Collection After verification of proper setup, initiate Dylos DC1100 data collection using the following procedure. The DC1100 can acquire data for 30 days, but weekly data retrieval is recommended to ensure that the device is working properly and that no data are lost. Procedure: Collect Data 1. Use the Browse button (&) to choose a path and file name where you want the data to be saved, as shown in Figure 7. It is recommended that the file name include the current date and time of collection for ease of identification. Data will be saved as a text file (*.txt) in the specified folder. 2. Press the Record button ((I) (Figure 7) to begin continuous monitoring. 3. Press the Record button again to stop monitoring when data collection is complete. 6 ------- CITIZEN SCIENCE 4. Turn off the Dylos DC1100 by pressing the power button once. H Dylo; loggtf D J [C\U««\£EO Hom\OacuwHt\Ot*>> LogiXOyloiLogM PartctetPer •• CubcFool C Cut* Fool/ll BfOWSG Button Processing Data The Dylos DC1100 records date, time, and small and large particle counts in particles per cubic foot (ft3) in a text file (*.txt). In this text file (Figure 8), the values for each measured property (e.g., date, time, etc.) are separated, or 'delimited', by commas. Most spreadsheet programs are able to read data from a text file in a delimited format. To process the collected data, you will need to transfer the text file created by the Dylos Logger software to spreadsheet software such as Microsoft Excel. Microsoft Excel 2013 is used in this procedure to illustrate the data transfer, but the relative locations of import options are similar in versions of Microsoft Excel dating back to 2003. Procedure: Process Data Figure 7 J DylosLogll-19-13.txt - Notepad a 1 S ||»O3 File Edit Format View Help Dylos Logger v 1.6.0.0 unit: DC1100 Date/Time: 10/28/13 10:35 Particles per cubic foot Date/Time, small, Large 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10/28/13 10:35 61600, 10:36 10:37 10:38 10:39 10:40 10:41 10:42 10:43 10:44 61400, 58900, 57200, 57400, 59600, 58800, 55100, 57900, 56500, 1300 BOO 900 500 800 1000 800 500 500 500 SUMMARY particles per cubic foot Number of samples : 10 small Particles LOW Hi Avg Large LOW Hi Avg 55100 61600 58440.0 Particles 500 1300 760.0 1. Open a new Microsoft Excel spreadsheet and select Data > From Text ([1] > [2] in Figure 9) on the 'Get External Data' tab. The first of three Text Import Wizard windows will open in a pop-up box. 2. Under 'Original data type', select 'Delimited' [3], and then click 'Next' [4] to proceed. ------- CITIZEN SCIENCE H *5- I HOME INSERT PAGE LAYOUT FORMULAS DATA REVIEW VIEW DEVELOPER [^ From Access [~~<^ g^_ ft, ® Connections ^[zTTl ^^ T Clear ^J^ [F Flash Fill !-<»Consolidate Get External D^ta fffl T* zl. "ion Filter _ Ly -, [@ From Web '""^ [§ Properties Ts Reap ply |*| Remove Duplicates !l? What-If Analysis- From Other Existing Refresh I- ^ort Filter Textto Group Ungroup Ln From Text Sources - Connections All ~ !«*Edit Links V Advanced Columns ^>Data Validation * OQ Relationships Figures Text Import Wizard- Step 1 of 3 The Text Wizard has determined that your data is Delimited, If this is correct, choose Next, or choose the data type that best descr bes your data. Or ginal data type Choose the file type that best describes your data: a Delimited - Characters such as commas or tabs separate each field, Fixed width - Fields are aligned in columns with spaces between each field. | ^ |] S3 | Start import at row: |l File origin: 437 : OEM United States O My data has headers, Preview of file E:\Sensor Data Turn In\PM\12-2\DylosLogl203.txt. 2_3ylaa Logger v l.S-0-0 Init: DC1100 Dace/Time: 11/27/13 14:42 3. In step 2 of the Wizard (Figure 10), check the 'Comma' box to indicate the type of delimiter, and then click 'Finish'. Text Import Wizard - Step 2 of 3 This screen lets you set the delimiters your data contains. You can see how your text is affected in the preview below, [H Treat consecutive delimiters as one Text ciualifier: ' T I Data preview }ylQ3 Lcgger v 1.6.0,0 Jnit: 3C11QQ 5ate/Time: 11/27/13 14:42 Figure 10 Cancel < Sack ------- CITIZEN SCIENCE 4. In the 'Import Data' pop-up window (Figure 11), select 'Existing worksheet' and click the button on the right to navigate to the folder containing the text file specified at the start of data collection. 5. Press 'OK' to display the data in columns in the Microsoft Excel spreadsheet, as shown in Figure 12. Import Data EE H *3 c* • s 1 HOME INSERT PAGE LAYOUT FORMULAS 01 p, * Calibn -111 - t— ' Eg - P*^ B Clipboard ^ i u , m , & , Font A' A" = = = &/~ li Aligr D20 £ A B 2 Dylos Logger v 1.6.0.0 3 Unit: DC1100 4 Date/Time: ] 0/28/13 10:35 6 Particles per cubic foot 7 C D E 3 Date/Time Small Large 9 10/28/201310:35 61600 1300 10 10/23/201310:36 61400 300 11 10/23/201310:37 58900 900 12 10/28/201310:38 57200 500 13 10/23/2013 10:39 57400 BOO 14 10/28/2013 10:40 5960C 1000 15 10/23/201310:41 5SSOO 300 16 10/23/201310:42 55100 500 17 10/28/201310:43 57900 500 18 10/23/2013 10:44 56500 500 19 21 SUMMARY 22 Particles per cubic foot 24 Number of s 25 26 Small Partial amples : 10 ss 1 ' 28 Low : 55100 29 Hi : 61600 30 Avg: 53440.0 31 32 Large Particles 33 34 Low: 500 35 Hi : 1300 36 Avg: 760.0 37 Select how you want to view this data in your workbook. H ® Table |g] PivotTable Report Irj PivotChart Only Create Connection iut the data? i Existing worksheet: •• i _"' New worksheet Add this data to the Data Model OK Cancel Figure 11 < > ... Dylosll-22-13 ------- CITIZEN SCIENCE For Additional Help Dylos Logger software, v. 1.6, Dylos Corporation, http://www.dylosproducts.com/downloads. html, last accessed May 13, 2015. U.S. Environmental Protection Agency, Particulate Matter (PM), http://www.epa.gov/airquality/ particlepollution/index.html, last accessed May 13, 2015. User Manual: DC1100 Air Quality Monitor, 2012., Dylos Corporation, 2900 Adams Street, C37, Riverside, CA. The purpose of this document is to provide general operating guidelines, and the U.S. Environmental Protection Agency (EPA) does not assume any liability regarding any aspect of its use. Reference herein to any specific commercial products, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by EPA. The views and opinions of authors expressed herein do not necessarily state or reflect those of EPA and shall not be used for advertising or product endorsement purposes. EPA assumes no liability associated with any errors in the suggested procedures, errors potentially made by the instrument in question, user misuse of the instruments or data collected, or costs due to any damage the instrument might experience under any circumstance or use. This user guide is specific to the make/model and version number of the instrument identified in the document and is not generalizable to any other sensor. The users should understand that they should develop operating guidelines specific to their own research needs, and any general document of this nature would be limited in meeting their full need. 10 ------- &EPA United States Environmental Protection Agency PRESORTED STANDARD POSTAGE & FEES PAID EPA PERMIT NO. G-35 Office of Research and Development (8101R) Washington, DC 20460 Official Business Penalty for Private Use $300 Recycled/Recyclable Printed on paper that contains a minimum of 50% postconsumer fiber content processed chlorine free ------- |