What a gas detector is and how it works
What is a gas detector? Wuhan Juzhou Technology will take you to understand what a gas detector is. A gas detector is an instrument that can detect gases. There are many types of gas detectors, such as portable gas detectors, fixed gas detectors, composite gas detectors, single gas detectors, toxic gas detectors, combustible gas detectors, etc.
The gas detector can detect the gas concentration in the environment. For example, there are some toxic and harmful gases or combustible gases in industrial production. It can quickly detect the composition and concentration of various contents in the industrial production environment gas, and quickly detect the results. When flammable or toxic gas leaks in the environment, and the gas detector detects that the gas concentration reaches the critical point set by the explosion or poisoning alarm, the alarm will send out an alarm signal to remind the staff to take safety measures.
Gas detectors mainly rely on gas sensors to detect gases. Gas sensors include electrochemical gas sensors, PID gas sensors, infrared gas sensors, catalytic combustion gas sensors, etc. Different gases need to use different gas sensors to detect gas concentrations. The sensors used in various gases and environments are also different, and most of them can be divided into: sensors for detecting the concentration of toxic gases and sensors for detecting the explosive concentration of combustible gases.
Most of the sensors used to detect the concentration of toxic gases are electrochemical sensors. It is a sensor based on electrochemical principles. The main factor affecting its life is the electrolyte. After 2 to 3 years, the electrolyte will be consumed and can no longer work normally. Therefore, the service life of electrochemical sensors is 2 to 3 years. Most of the sensors used to detect the concentration of combustible gases are catalytic combustion sensors, and their service life is 3 to 5 years.
