What Should Be Noted When Calibrating the Sensor of a Combustible Gas Detector?
Combustible gas detector is a gas detection device that detects the concentration of combustible gas leaks. It mainly uses sensors to detect the types, compositions, and contents of combustible gases present in the environment. So what should be noted for the calibration of combustible gas detector sensors?
(1) In principle, standard sample gases that have been certified by metrology and match the gas being tested should be used. The alarm points vary depending on the standard sample gas selected for the same tested medium.
(2) Before verification, the surrounding environment of the gas alarm probe should be free of flammable gases. If there is combustible gas, the rain cover should be removed first, a certain amount of clean air should be filled, and then the sample gas should be continuously introduced to verify the accuracy.
(3) When the tested gas is a mixture of hydrocarbons, isobutane is the sample gas, followed by propane.
(4) For hydrocarbon mixtures with significantly different heat generated during combustion of non hydrocarbon mixtures or gases with lower explosive limits, readily available and stable single component fuels such as butane, isobutane, propane, etc. can be used as sample gases when necessary. At this point, adjust the range of the alarm based on a certain detection signal conversion relationship.
The above issues to be noted in the calibration of combustible gas detector sensors are shared here. Combustible gas detectors can be linked with related linkage equipment. In case of leakage during factory production, storage and transportation, they can drive exhaust, cut off power, spray and other systems to prevent explosions, fires, poisoning accidents, and thus affect safety production.
