How can I calibrate my Aranet4?
Aranet4 can be calibrated either automatically or manually at home.
In the case of automatic calibration mode, the Aranet4 device needs to be exposed to fresh air at around 420 ppm (for instance, outdoors or in a room with good air exchange) for approximately 8 hours during each 30 day operation period.
When doing a manual calibration the Aranet4 device must be exposed to fresh air (about 420 ppm of CO2) and the environment should be stable (not changing) for 30 minutes while the calibration is done. Maintain a distance of at least 1 meter from the device during the calibration process so the CO2 from your breath wouldn’t impede the calibration. To initiate the manual CO2 calibration change the switch position at the back of the device behind the batteries from MANUAL to AUTO and back to MANUAL (maintain a maximum of 1 second between each movement):
Please note! The batteries must be inserted into the device. To trigger the switch, use SIM-tool delivered with Aranet4 or another similar tool.
The calibration progress will be displayed on the screen of the device. In case of a calibration failure message, make sure that the environmental requirements are met and repeat the process from the beginning.
Manual calibration can be done using the Aranet4 app as well. You can see the instructions on how to do the manual calibration via the app in the Aranet4 Calibration Tutorial.
For reference background CO2 level please check the global outdoor CO2 level map: 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.
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