Distinguishing between combustible and toxic gas detectors
Gas detector in China's industrial sector in a wide range of applications, the application value is also more and more people pay attention to and concern. We know that in the classification of gas detector: toxic gas detector, combustible gas detector, portable gas detector, fixed gas detector. So you know what is the difference between combustible gas detector and toxic gas detector? In order to solve this problem, the next Osun Jie for you to introduce in detail.
1,Detecting gas
Combustible gas detector mainly detects flammable gas, and methane as the standard to detect the concentration of flammable gas. According to the user's use of different combustible gases in different places, according to its main gas as the standard detection of gas concentration to set.
Toxic gas detector is needed to know the specific detection of which one or more gases, you can choose a separate toxic gas detection alarm, you can also choose a composite toxic gas detector, depending on the use of toxic gases in the place of use is the need to detect a single, or a variety of gases need to be detected.
2, the gas sensor
Combustible gas detector using catalytic combustion gas sensors, while the toxic gas detector using electrochemical sensors or infrared sensors or PID sensors, etc. Different, the detection of gas concentration content per unit are not the same, the specific need for a series of formulas for conversion.
3, the core components
Combustible gas detector alarm using catalytic combustion gas-sensitive components, while the toxic gas detector alarm using electrochemical toxic gas alarm mode. If you want to detect toxic gases, you need a one-to-one sensor, because different toxic gas sensors are not the same, such as ammonia, chlorine, hydrogen sulfide, etc., common toxic gases.
For the detection of flammable gases (flammable and explosive gases), the sensors are common, but the calibration coefficients are different for each gas. Different flammable gases have different chemical properties and different explosion limit values.
