The difference between combustible gas detector and toxic gas detector

Feb 27, 2023

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The difference between combustible gas detector and 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.


Toxic gas detectors need to know which one or more gases to detect. You can choose a single toxic gas detector and alarm, or you can choose a composite toxic gas detector. It depends on whether the toxic gas in the use site needs to be detected. Yes, or a variety of 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 specific 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.

 

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