Gas detector maintenance and sensor life
maintainance
1. Check the gas flow rate, usually 30/h, if the flow rate is too large or too small, it will have a great impact on the results of the analyzer
2. Replace the filter paper: stop the air pump and drain the filter tank
3. Check whether there is air leakage in the air system. Whether the sobbing pump diaphragm is damaged, whether the sealing ring of the sampling probe is broken, whether the four-way valve and condensing steam are damaged, etc.
4. The sampling probe is cleaned and the sampling hole pipeline is dredged
5. Check whether the condenser works normally, usually the temperature is adjusted within 3 degrees Celsius
6. Check the measuring chamber to see if it is dirty and clean it in time.
life
The service life of the gas detector mainly depends on its main component - the sensor.
We also know that it is impossible to have a sensor that can detect all gases and meet all requirements. The sensors used in various gases and various environments are also different. They can be roughly divided into: sensors for detecting toxic gas concentrations and sensors for Sensors that detect explosive concentrations of flammable gases.
Most of the sensors used to measure the concentration of toxic gases are electrochemical sensors, which work based on electrochemical principles. The main factor that affects its life is the electrolyte. After 2 to 3 years, the electrolyte can no longer be consumed. It works normally, so the service life of the electrochemical sensor is 2~3 years.
Most of the sensors used to detect the concentration of combustible gas are catalytic combustion sensors, which have a service life of 3 to 5 years.
