
8. Calibrating CO/CO
2
Sensor
34
8. Calibrating CO/CO
2
Sensor
When calibrating the IAQ Monitor on site, follow the instruction below.
It is recommended to calibrate the IAQ Monitor’s CO/CO2 measurement every 2-3 months to ensure accurate readings.
In addition, it is still recommended to send your IAQ monitor to KANOMAX for annual calibration.
* It is recommended to exchange the CO sensor annually and it is a consumable.
8.1 Preparation for Calibration
Fully warm up the instrument (for about 20 minutes) before performing a calibration.
Normally calibrate ZERO gas first then Span gas.
(It is also acceptable if you calibrate either ZERO gas or Span gas.)
Valve
Close
Open
Turn to Turn to
the back the front
1. Confirm if the valve of the regulator is closed
2. Attach the regulator to a ZERO gas cylinder.
3. Connect the regulator to the calibration cap
by using a tube. Connect them firmly in order
to prevent the gas-leaking.
4. Put the calibration cap on the probe. Insert it
firmly in order to prevent the gas-leaking.
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