What is the calibration principle of combustible gas detector
In principle, the calibration of combustible gas detectors should use the standard gas that has been certified by metrology and matches the gas to be detected. First of all, before calibrating the combustible gas detector, we should ensure that the surrounding environment of the combustible gas detector should be free of combustible gas. If there is combustible gas, remove the rain cover first, fill in a certain amount of clean air, and then continuously feed the sample gas to ensure the accuracy of the calibration.
When the measured gas is a hydrocarbon mixture, isobutane is the sample gas, followed by propane. For non-hydrocarbon mixtures or hydrocarbon mixtures with a large difference in heat generated during combustion of gases with lower explosive concentration, as a last resort, easily available and stable single-component fuels such as butane, isobutane, and propane can be used as samples. gas. At this time, the range of the alarm must be adjusted according to a certain detection signal conversion relationship. This also determines that the methane gas detector is a necessary material for enterprise production.
Secondly, this combustible gas detector is widely used in environments or mines that contain methane or coal dust explosion hazards. It is used by staff to measure methane content, and the operation is simple and convenient. In the industrial environment, when the gas detector detects that the concentration of methane reaches the critical point, it will send out an alarm signal, so as to ensure the safety of production, property safety, and the safety of the staff. It can be seen that the gas detector is a necessary production material for enterprises. Enterprises should prepare one to prevent danger.
