EvaluatIR-A Evaluation Kit User Guide Gas Sensing Solutions Ltd. Page | 1 For regular updates, sign up at https://gassensing.co.uk Revision 1.0, 04 June 2021 Copyright © 2021 Gas Sensing Solutions Ltd.

Gas Sensing Solutions Ltd. Page | 2 For regular updates, sign up at https://gassensing.co.uk Revision 1.0, 04 June 2021 Copyright © 2021 Gas Sensing Solutions Ltd.

USER GUIDE INTRODUCTION This evaluation kit is designed to provide a fast and easy method to measure and record CO2 data using the GSS CozIR®-A CO2 sensor. Once set up, the kit is designed to run fully autonomously and can be left for weeks at a time without the need for use intervention. Actual battery life will vary depending on the sensor setup. The evaluation kit includes the EvaluatIR-A box, and a USB cable. The EvaluatIR-A PC software application can be downloaded from the GSS web site. https://www.gassensing.co.uk/resources?resource=software As well as recording CO2 data, the software...

USER GUIDE INITIAL SETUP The EvaluatIR-A comes boxed with a USB lead. The EvaluatIR-A requires the addition of two AA batteries to power the unit. Unscrew the battery cover using a small Phillips screwdriver. Insert the batteries as per the directions in the battery compartment. Fit the battery cover back into place. The unit is now ready for use. Gas Sensing Solutions Ltd. Page | 4 For regular updates, sign up at https://gassensing.co.uk Revision 1.1, 11 June 2021 Copyright © 2021 Gas Sensing Solutions Ltd.

USER GUIDE SOFTWARE INSTALLATION The EvaluatIR-A software is available direct from the GSS web site. Download the .zip file to your computer. Unzip and click on Setup.exe and follow the instructions on the screen. The software has been extensively tested to run on a Windows 10 platform. However, no guarantee can be given for successful operation on other platforms. The software will not run on Android or iOS. CONFIGURING THE EVALUATIR Connect the EvaluatIR-A to the PC using the supplied USB lead. The green LED on the top of the unit will now illuminate. USB DRIVER The EvaluatIR contains an integrated...

USER GUIDE RUNNING THE SOFTWARE Look for the filename GSS EvaluatIR Application. Double click the software to launch the application. The opening screen is shown below. Click on the Connect button to access the pull-down menu. Click on the pull-down menu to access the communication port used by the EvaluatIR-A. It may not appear as COM3 but if you are unsure what communications port the platform is attached to then go to the “Device Manager” on your machine and plug / unplug the EvaluatIR-A. This will show you which port the device is connected to. Select the correct COM port and click on the...

USER GUIDE If this is a new setup or new batteries have been installed, the time field will be showing all zero. Push the ‘Set Time’ button to set the EvaluatIR-A to the PC time. Note this will now run independently and is used to time stamp the internal measurements for subsequent read out. It will not be updated with respect to PC time or daylight saving time unless the set time button is clicked with the unit connected to the PC The current configuration for the EvaluatIR-A is shown in the main body of the display. Gas Sensing Solutions Ltd. Page | 7 For regular updates, sign up at https://gassensing.co.uk...

USER GUIDE CHANGING THE CONFIGURATION If the configuration is to be changed click on the “Config” button to display the setup screen. The ID of the EvaluatIR-A unit may be set by user. Overwrite the default ID name and save. This will be output on the retrieved data file to indicate which unit the data was retrieved from. The ID is subject to a maximum character length of 20. The EvaluatIR-A can be set up to log CO2 levels either periodically or continuously. For periodic logging, click on ‘Long Term Logging’ and set the measurement period. The integration time is the length of time the CO2 values...

USER GUIDE For continuous logging, the EvaluatIR-A will log CO2 values at the pre-set period. The sensor can also be set up to provide a pressure compensated CO2 value. This uses the internal pressure sensor to compensate the CO2 value for any pressure variations. Note this is only used to correct the output when it is downloaded. It can therefore be changed to download both corrected and uncorrected versions of the same dataset. The EvaluatIR-A has an ‘Auto-Zero’ function, where the zero set point is periodically reset. See the CozIR®-A sensor data sheet for more details. The EvaluatIR-A can...

USER GUIDE DATA RECORDING Once the Evaluation platform has been configured, it can now be used to record data. Click the ‘Start’ button and the EvaluatIR-A will start logging indicated by the logging enabled script in the application. The script ‘Logging Disabled’ highlighted in red will change to ‘Logging Enabled’ in green. The evaluation platform can now be disconnected from the USB cable and will record data autonomously. The LED on the EvaluatIR-A will flash briefly at each reading point. Note that if the measurement interval is long, this will happen infrequently. Note, the EvaluatIR-A must...

USER GUIDE DATA RETRIEVAL Launch the software application as before. Plug the USB lead into the EvaluatIR-A and the PC. Click ‘Connect’. The software application will show the number of data points that have been stored since the EvaluatIR-A was started. To download data, firstly select ‘All Records’ or ‘’Last’ and enter the number of records to download. Click the ‘Download’ button. The next screen will ask for a location to save the file to, and the file name. Once these have been input select the save button. The data will now download, and a green progress bar will move across the lower part...

USER GUIDE Gas Sensing Solutions When the data download is complete, a box will appear indicating the download is complete. This can be cleared as required. Note that if a file name is used, the new data will be appended to the old file. The file is in CSV format. Download X Download Complete r~5r~i The data file can now be accessed via a spreadsheet solution for subsequent analysis. Page | 12 For regular updates, sign up at https://gassensing.co.uk Copyright © 2021 Gas Sensing Solutions Ltd.