No response after ventilating a gas detector: causes and remedies
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, so the security guarantee in the prevention of gas leakage and early warning of excessive 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.
Application of Portable Gas Detector in Chemical Plant
Maintenance test: After the equipment is repaired and replaced, it is more important to detect the residual harmful gas or liquid, especially before the fire.
Emergency detection: When abnormal conditions occur on the production site or accidents are handled, harmful gases or liquids should be detected for safety and sanitation.
Leak detection: Leakage detection and alarm for harmful gases or liquids in the equipment pipeline, and leak detection for equipment pipeline operation.
Tour inspection: during safety and sanitation inspection, harmful gas or liquid vapor should be detected.
Safety inspection: When workers enter the hazardous material isolation operation room, enter the sewer, cable trench or equipment for operation, they must detect harmful gases or liquid vapors.
