Extech Instruments CO210 User Manual

9 CO210-en-US v1.3 1/21
Troubleshooting
No power
Check that the AC adaptor is properly connected.
Slow response
Check that rear air flow vents are not blocked.
"BAt” and green LED flash
The adaptor output voltage is too high or too low.
Error Display Codes
CO2
Display
Code
E01
CO2 sensor malfunction.
Return for repair.
E02
CO2 reading out of range (low).
Re-calibrate the meter. If problems persist,
return for repair.
E03
CO2 reading out of range (high).
Place the meter in fresh air and allow 5
minutes. If problem persists, re-calibrate the
meter. Return for service if necessary.
E17
CO2 senor failure.
Return for repair.
Temperature
Display Code
E02
Air temperature out of
range (low).
Place the meter at room temperature for 30
minutes. If problem persists, return for repair.
E03
Air temperature out of
range (high).
Same as EO2.
E31
Sensor malfunction.
Return for repair.
Humidity
Display
Code
E04
Temperature display shows error.
Refer to temperature error codes.
E11
RH calibration failure.
Please return for repair.
E34
RH sensor circuit failure.
Please return for repair.

Extech Instruments CO210 Specifications

General

Brand	Extech Instruments
Model	CO210
Category	Measuring Instruments
Language	English