CO2 readings below 370 ppm

• 

  groutchmeuh

  Posted: 18.05.2022 11:42

  Modified: 25.04.2024 19:06

  Hello,

  i have a new Arabet4, receuved 2 days ago

   

  I performed a manual calibration yesterday.

   

  But I notice today the CO2 levels when I’m outside can get as low as 362 (see pic) 

   

  What’s wrong ? 

   

  thanks 
• 

  aranet-techsupport

  Posted: 18.05.2022 11:48

  Hello,

  Unfortunately, the picture was not attached. 

  You can compare your Arane4 CO2 measurements with third-party services providing information about CO2 level outside. F.e.  https://earth.nullschool.net/#current/chem/surface/level/overlay=co2sc/orthographic=29.16,51.27,791/loc=24.215,57.021
  Click with the mouse pointer to your location on the map, and you will see current CO2 level outdoors.

  Please contact support@aranet.com if your sensor measurements after manual calibration differ significantly from the data of this service.
• 

  groutchmeuh

  Posted: 18.05.2022 12:30

  I can't upload the pic ('forum server incorrect reply')

  Here is a link to the pic in my cloud:

  https://app.box.com/s/qbpej4um74yeerc06o2sge374jvgueqi

   

  PLease note that right after calibration, the reading is correct (416 ppm)

  It is only afterwards that there is a drift.

   

  I observe the same phenomenon with another CO2 measurment device based on the same technology. (NDIR)

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