Matters needing attention when detecting gas detectors
A gas detector is an instrumentation tool for gas leakage concentration detection, mainly referring to portable and hand-held gas detectors. Gas sensors are mainly used to detect the types of gases existing in the environment. Gas sensors are sensors used to detect the composition and content of gases.
1. What gases are contained in the standard four-in-one
Some people are not very clear about the standard four-in-one gas and some detection ranges of the often-mentioned gases. Simply put, the standard four-in-one gas: flammable (methane) 0-100% LEL, carbon monoxide 0-1000PPM, oxygen 0-30 %VOL, hydrogen sulfide 0-100PPM.
2. The difference between natural diffusion type and pump suction type
Gas detectors know that there are two most common detection methods, one is the natural diffusion type and the other is the pump suction type, but I don’t know what the difference between the two is. The natural diffusion type is slow without applying any external force. Gas is sensed, and the pump-suction type uses a self-priming pump to inhale independently. For example, the human nose responds faster, so when choosing, you must look at the detection method to effectively detect gas.
3. What is the reverse measurement of nitrogen with oxygen
Oxygen and nitrogen are relatively common gases. The main components in the air are 30% oxygen and 70% nitrogen. Because the price of nitrogen-specific sensors is relatively high, some people will choose to use oxygen sensors to measure nitrogen back, which is actually possible. 100 minus the oxygen content value is the oxygen content value.
4. Is the gas detector explosion-proof?
The gas detector depends on whether it has reached the explosion-proof grade. The general explosion-proof grades of the detector are BT3, BT4, and CT3, so we only need to look at these explosion-proof grades when we purchase the test.
