Causes and treatment methods of no response after gas detector is ventilated
Various gases are used in the industrial field due to production needs, but while industrial gases bring great convenience, leakage will also bring major hidden dangers of accidents. Therefore, security protection in the prevention of gas leakage and excessive warning links It is also particularly important that gas detectors can effectively measure and detect toxic and harmful gases. However, during the use of the gas detector, sometimes there will be no response after the gas detector is ventilated. What is the reason? How to solve it?
There are two types of gas detectors that do not respond after ventilation:
1. There is gas on site, and the instrument responds slowly
1) The calibration has expired or has not been calibrated for a long time, resulting in errors
Solution: Recalibration is required
2) The life of the sensor has expired, and the sensitivity of the instrument is low
Solution: The sensor needs to be replaced
2. There is gas on site, but the instrument does not respond
1) Gas interference
There are sulfides and silicides in the environment, which will poison the catalytic combustion sensor and cause no response.
2) Sensor damage or failure
Solution: need to replace a new sensor or module.
3) The circuit board is damaged
Generally, the microcontroller, op amp chip or signal board is damaged.
The above-mentioned reasons and treatment methods for the non-response of the gas detector after ventilation are shared here, and the on-site verification personnel should carry the gas detector that has passed the test in accordance with the regulations during the detection process, and wear a special gas mask to protect own personal safety.
