The working principle of pump suction and dispersive gas detector is essentially the same, through the sensor of the sample gas detection instruments, and then through the amplification circuit arrangement is converted into the corresponding numerical display on the screen, combustible gas catalytic combustion type commonly used sensors, toxic gas type commonly used electrochemical sensors.
Pump suction type gas detector just as its name implies is to instrument is configured with a small air pump, the way it works is the power to drive area of gas suction pump to test samples, then put the sample gas into instrument for testing.
The characteristics of the pump suction type gas detector is fast detection and distance measurement can be performed for dangerous area, maintenance personnel security, other and dispersive gas detector.