Gas Detector and Online Gas Analysis System

Tips for maintaining portable gas detectors

 Tips for maintaining portable gas detectors

Low power of battery:

The battery power of the newly purchased portable gas detectors may be very low, and unable to start up. For better sensor stability, it is fully discharged for aging instrument testing before shipment. When the battery power of the instrument is lower than the preset value, an audible and optical undervoltage alarm will be triggered to remind the operator that the battery is low and needs to be charged. In the event of an undervoltage alarm, in addition to the audible and visual alarm screen, the detection failure symbol will be displayed, and the detection pass symbol will flash with the battery undervoltage symbol. When the battery is exhausted, the detection failure symbol and the battery undervoltage symbol flash at the same time, and the prompt “battery off” appears on the screen, and the instrument will automatically shut down.

If the power is too low to turn on or when an undervoltage alarm occurs, the operator should turn off the instrument and charge it. The charging time is about 4-6 hours.

For the first time using:

If the gas detector has not been used for a long time (more than 1 week), let the instrument run for a period of time (more than 15 minutes) after turning on, and observe whether the zero calibration of the instrument is stable at around 0. If it is not zero or drifts greatly, It needs to be zeroed once. The instrument should be placed in fresh air when it is zeroed (must be fresh air).

Return to zero method:

Zero calibration must be performed in the fresh air. Do the zero calibration before using the instrument or after an alarm occurs.




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