Distinguishing between combustible and toxic gas detectors
Gas detectors have a wide range of applications in the industrial field of China, and their application value is increasingly valued and concerned by people. We know that in the classification of gas detectors, there are toxic gas detectors, combustible gas detectors, portable gas detectors, and fixed gas detectors. Do you know the difference between combustible gas detectors and toxic gas detectors? To address your question, Ousenjie will now provide a detailed introduction.
1. Gas detection
The combustible gas detector mainly detects combustible gases and uses methane as the standard to detect the concentration of combustible gases. According to the different combustible gases in the user's place of use, the gas concentration can be set according to the main gas as the standard detection gas.
The toxic gas detector needs to know which specific gas or gases to detect. You can choose a separate toxic gas detection alarm device or a composite toxic gas detector, depending on whether the toxic gas in the usage area needs to be detected for a single gas or for multiple gases.
2. Gas sensor
The combustible gas detector uses catalytic combustion gas sensors, while the toxic gas detector uses electrochemical sensors, infrared sensors, or PID sensors. The unit concentration content of the detected gas varies, and a series of formulas are required for conversion.
3. Core components
The alarm of the combustible gas detector adopts a catalytic combustion gas sensing element, while the alarm of the toxic gas detector adopts an electrochemical toxic gas alarm method. If you want to detect toxic gases, you need one-on-one sensors because different toxic gas sensors are different, such as ammonia, chlorine, hydrogen sulfide, and other common toxic gases.
If detecting combustible gases (flammable and explosive gases), the sensor can be universal, but the calibration coefficients for each gas are different. Different flammable gases have different chemical properties and explosion limits.
