Portable gas detector can detect gas
Working principle of portable gas detector
Electrochemical gas detectors are gas detectors using electrochemical sensors. Since many gases are electrochemically active, they can be electrochemically oxidized or reduced, and the current generated by this reaction is proportional to the concentration of the gas that reacts. , so the composition and concentration of the gas can be detected through this type of reaction. This detection method has high precision and fast response, and is mostly used for the detection of toxic gases, but there are different classifications of electrochemical reactions. The following introduces the most commonly used electrochemical reaction modes and principles of electrochemical gas detectors.
The portable gas detector is an instrument used to detect whether there is a dangerous gas (flammable, explosive, poisonous) in a certain environment. For the hazardous gases present in the detected environment. Maintenance is an important task to improve the stability, accuracy and life of the testing instrument. It is also an important work to effectively prevent failures.
Portable gas detector can detect gas
Portable gas detector can detect hydrogen sulfide, carbon monoxide, oxygen, sulfur dioxide, phosphine, ammonia, nitrogen dioxide, hydrogen cyanide, chlorine, chlorine dioxide, ozone and combustible gases and other gases, widely used in petrochemical, On-site detection in coal, metallurgy, chemical industry, municipal gas, environmental monitoring and other places.
Service life of portable gas detector
The service life of the portable gas detector mainly depends on the core component sensor. It can be roughly divided into: sensors for detecting the concentration of toxic gases and sensors for detecting the explosive concentration of combustible gases. The sensor used to detect the concentration of combustible gas is a catalytic combustion sensor, and its service life is 3 to 5 years. The sensor for detecting toxic gas is an electrochemical type, generally 1 to 2 years.
