Introduction to Maintenance and Repair of Gas Detectors
Gas detector is an instrument tool for detecting gas leakage concentration, which includes portable gas detectors, handheld gas detectors, fixed gas detectors, online gas detectors, etc. Mainly using gas sensors to detect the types of gases present in the environment, gas sensors are sensors used to detect the composition and content of gases.
It is generally believed that the definition of gas sensors is based on the classification of detection targets, which means that any sensor used to detect gas composition and concentration is called a gas sensor, regardless of whether it is using physical or chemical methods. For example, sensors that detect gas flow are not considered gas sensors, but thermal conductivity gas analyzers are important gas sensors, although they sometimes use generally consistent detection principles.
Repair and maintenance
1. Check the gas flow rate, usually 30 hours. Excessive or insufficient flow rate has a significant impact on the analyzer results
2. Replacing filter paper: Stop the air pump and drain the filter tank
3. Check for air leakage in the air circuit system. Check if the diaphragm of the sobbing pump is damaged, if the sealing ring of the sampling probe is broken, and if the four-way valve and condensate are damaged
4. Cleaning of sampling probe and dredging of sampling hole pipeline
5. Check if the condenser is working properly, usually adjusting the temperature within the range of 3 degrees Celsius
6. Check the measuring chamber for dirt and clean it in a timely manner.
Gas detectors can detect various gases such as hydrogen sulfide, carbon monoxide, oxygen, sulfur dioxide, phosphine, ammonia, nitrogen dioxide, hydrogen cyanide, chlorine, chlorine dioxide, ozone, and combustible gases. They are widely used for on-site detection in various places such as petrochemical, coal, metallurgy, chemical, municipal gas, and environmental monitoring. It can meet the measurement needs of special occasions; It can detect gas concentration or leakage in tunnels, pipelines, tanks, enclosed spaces, etc.
