Principle and application of pumping gas detector
When we use the gas detector, we often meet various types of instruments with different detection principles, among which the pumping gas detector is widely used. However, due to the user's insufficient knowledge of gas detection and limited relevant experience, the pumping gas detector will not be used or maintained. Today, we will explain the principle and application of the pumping gas detector to you.
Detection principle of pumping gas detector
The working principle of the pump gas detector is the same as that of the diffusion gas detector. The sample gas is detected by the sensor of the instrument, and then converted into corresponding values through circuit amplification and display on the screen. Catalytic combustion sensors are commonly used for combustible gases, and electrochemical sensors are commonly used for toxic gases.
Pump-suction gas detector is equipped with a small air pump in the instrument, and its working mode is that the power supply drives the air pump to sample the gas in the area to be detected, and then the sample gas is sent to the instrument for detection.
Advantages and disadvantages of pumping gas detector
The advantages of pumping gas detector are: fast detection speed, long-distance measurement of dangerous areas, and maintenance of personnel safety. Other gas detectors are the same as diffusion gas detectors.
Disadvantages: the price is relatively expensive.
Application of Pump-Suction Gas Detector
Pump-suction gas detector is often used in special occasions, such as gas concentration detection in tunnels, pipelines, sewers, tanks, sealed containers and so on, which are not suitable for people to enter or are not easy to enter. Common ones are: pumping oxygen detector, pumping hydrogen sulfide detector, pumping chlorine detector, pumping hydrogen chloride detector, pumping combustible gas detector, etc.
