CO230-en-GB_v1.0 1/16
12
Maintenance
CLEANING AND STORAGE
1. The meter should be cleaned with a damp cloth and mild
detergent when necessary. Do not use solvents or abrasives.
2. Store the meter in an area with moderate temperature and
humidity (see specifications section above).
TROUBLESHOOTING
No Power
Check that the AC adaptor is properly connected.
Slow response
Ensure that air flow channels on the back of meter are not blocked.
Error messages
E01: CO
2
sensor damage
E02: Under-range measurement
E03: Over-range measurement
E04: Humidity, Dew Point, or Wet Bulb error
E07: Low voltage; check that the AC adaptor output is 12V.
E11: Calibration error; retry the humidity calibration
E17: Calibration error; retry the CO
2
calibration
E31: Temperature sensor damage
E34: Humidity sensor damage
