What is the calibration principle of methane gas detector?
The methane gas detector is mainly used to measure methane content and can continuously detect the concentration of methane in the working environment of flammable and explosive gas mixtures. It is widely used in industries such as coal mining, petroleum, and chemical. Due to its wide application, it is recognized by many enterprises as a necessary means of production. In the use of methane gas detectors, calibration principles are an aspect that we must attach great importance to. Do you know the calibration principle for methane gas detectors?
The calibration principle of methane gas detector should use standard gas that has been certified by metrology and matches the detected gas. Firstly, before calibrating the methane gas detector, we should ensure that the surrounding environment of the combustible gas detector is free of combustible gases. If there is combustible gas, the rain cover should be removed first, and a certain amount of clean air should be filled before continuously introducing the sample gas to ensure the accuracy of the verification.
When the tested gas is a mixture of hydrocarbons, isobutane is the sample gas, followed by propane. 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, the range of the alarm must be adjusted based on a certain detection signal conversion relationship. This also determines that methane gas detectors are necessary materials for enterprise production.
Secondly, this methane gas detector is widely used in environments or mines containing methane or coal dust explosion hazards. Staff use it to measure methane content, and the operation is simple and convenient. When the methane gas detector in the industrial environment detects that the methane concentration reaches the critical point, it will issue an alarm signal to ensure safe production, property safety, and the safety of workers. Therefore, it can be seen that the methane gas detector is a necessary production material for enterprises, and relevant enterprises should prepare one to prevent danger.
