Co Calibration - Wohler KM 410 Bedienungsanleitung

Calibration
12.3

CO Calibration

Fig. 29: CO Calibration
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• First press START/ESC and MEM/▼, then
also ON/OFF/SET simultaneously for 3 sec-
onds to turn on the meter and enter the cali-
bration mode.
• Press HOLD/▲ or MEM/▼ to enter the CO
calibration mode (0 ppm or 400 ppm).
0 ppm or 400 ppm and the "CAL" icon are blinking.
• Press M/AVG to start the calibration.
Wait about 10 minutes until the blinking stops and
the calibration is completed automatically.
To abort the calibration, turn off the meter at any
time.
ATTENTION!
Do not calibrate the meter in the air with unknown
CO concentration. Otherwise, it will be calibrated
as 0 or 400 ppm by default. This will lead to inac-
curate measurements.
ATTENTION!
Ensure that the battery voltage is sufficient.
2