Carbon dioxide detector maintenance and maintenance a) The instrument should be turned off when not using the instrument for a long time, and be careful to store it to avoid strong direct sunlight or humid environment for a long time. b) The instrument should be maintained and maintained regularly. Do not drop and do not let the instrument inhale dust.

Symptom Cause Analysis Remedy Remarks The working hours are insufficient.

Insufficient charge or battery life. Check the charging stand for good contact with the charging stand, or replace the battery. The type, specification, and parameters of the components in the original circuit must not be changed during maintenance, and the original package must not be changed. All repairs must be carried out by a professional on the well. If the user cannot repair it, it can be returned to the factory for repair or replacement.

Alarm soundless contact, or circuit failure. Check solder joints, wires and circuits.

Digital tube is missing or not bright The digital tube is bad or the welding is loose. Replace the digital tube or repair welding.

Carbon dioxide detector measurement error is too large 1, when powered or zero in an environment containing CO2 gas 2, the alarm meter power is less than 3, the alarm drift Note: The maintenance and maintenance of carbon dioxide equipment should be regularly calibrated and maintained alarms, The adjustment period must not exceed 15 days.