Comparison of Combustible Gas Detectors and Toxic Gas Detectors
Gas detectors have a wide range of applications in the industrial field of our country, and the application value is more and more 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. So do you know the difference between a flammable gas detector and a toxic gas detector?
1. Gas detection
The combustible gas detector mainly detects combustible gas, and uses methane as the standard to detect the concentration of combustible gas. According to the different flammable gases in the user's place, it can be set according to the main gas as the standard detection gas concentration.
The toxic gas detector needs to know which one or more gases to detect. You can choose a single toxic gas detector or a composite toxic gas detector. It depends on whether the toxic gas in the place of use needs to be detected. Single, or multiple gases need to be detected.
2. Gas sensor
Combustible gas detectors use catalytic combustion gas sensors, while toxic gas detectors use electrochemical sensors, infrared sensors, or PID sensors. The unit concentration of the detected gas is different, and a series of formulas are required for conversion.
3. Core components
The alarm of the combustible gas detector adopts the catalytic combustion gas sensor, while the alarm of the toxic gas detector adopts the electrochemical toxic gas alarm method. If you want to detect toxic gases, you need a one-to-one sensor, because different toxic gas sensors are different, such as ammonia, chlorine, hydrogen sulfide, etc., common toxic gases.
If it is to detect combustible gas (flammable and explosive gas), the sensor can be used universally, but the calibration coefficient of each gas is different. Different flammable gases have different chemical properties and different explosion limit values.
