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Summary of Contents for Extech Instruments CO240
- Page 1 USER MANUAL Carbon Dioxide Meter Model CO240 Additional User Manual Translations available at www.extech.com...
- Page 2 Introduction Thank you for selecting the Extech Instruments Model CO240. The CO240 measures Carbon Dioxide (CO ), Air Temperature, and Relative Humidity. It also calculates Dew Point Temperature and Wet Bulb Temperature. The user-programmable high alarm feature alerts the user when level rises above the programmed limit and the data streaming feature allows readings to be captured in real time by PC (USB connection).
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Page 3: Meter Description
The alarm beeper is set to ON by default. The meter can be powered by 6 AAA batteries or AC Adaptor. Recommendation: For datalogging, power the unit using an AC/DC adaptor in order to conserve battery power. CO240-en-US_v1.9 10/22... - Page 4 Auto Power Off The CO240 will automatically turn off after 20 minutes of inactivity. To disable the auto power off function: With the meter OFF, press and hold the HOLD button and then press the POWER button. The LCD will show “n”, and will then return to normal measurement mode.
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Page 5: Co 2 Alarm Setting
Check the software download page of the website www.extech.com/software/downloads for the latest version of the PC software and its operating system compatibility. Download and unzip the software. Run ExtechInstaller.exe and then refer to the instructions provided in the HELP Utility within the software program. CO240-en-US_v1.9 10/22... -
Page 6: Maintenance And Troubleshooting
Detected reading exceeds CO Temperature or Humidity range specification. This error is normal when clearing the maximum and minimum readings in the MAX/MIN mode. “9999” Display Reading exceeds the CO maximum measurement range or the battery power is weak. CO240-en-US_v1.9 10/22... -
Page 7: Specifications
-4 to 122°F (-20 to 50°C) Storage Humidity 0 to 95%RH (avoid condensation) Power AAA batteries x 6 pcs or AC adaptor Dimensions 8.3 x 2.4 x 1.6” (211 x 60 x 40 mm) Weight 6.4 oz. (181.4g) CO240-en-US_v1.9 10/22... -
Page 8: Two Year Warranty
Calibration, Repair, and Returns: repair@extech.com Technical Support: https://support.flir.com Copyright © 2022 Teledyne FLIR Commercial Systems, Inc. All rights reserved including the right of reproduction in whole or in part in any form www.extech.com This document does not contain any export-controlled information CO240-en-US_v1.9 10/22...
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