Use of portable toxic and harmful gas detector

　　Portable toxic and harmful gas detector is one of the most commonly used detectors in some dangerous places. It is an instrument that measures the gas concentration by converting the physical or chemical properties of the gas itself into electrical signals through photoelectric technology. Its main component is the gas sensor. Common types of on-site gas sensors include electrochemical sensors, catalytic combustion sensors, photoionization detectors, semiconductor sensors, etc. There are many gases that can be detected by toxic and harmful gas detectors. We should choose which gas detectors to use according to the gases we want to detect.

​ Selection by the type of gas to be detected: Because the detection requirements are different, all possible situations should be considered. For example, when detecting methane and other less toxic alkanes, the EM-50 methane detection transmitter fixed methane gas detector is the most appropriate.

　　Selection by sensor type: An instrument that cannot change the sensor configuration or add or remove sensors may be a defect. When selecting a detector, you should consider factors such as whether the sensor can be replaced on-site and whether it is difficult to add sensors. If the type of pollutants in the surrounding environment to be detected has been confirmed, choosing a specific sensor is the safest and most reliable method.

　　Choose between diffusion type or pump suction type: If you are in an open place, you can use a wearable diffusion gas detector. If it is a confined space, you must choose a multi-gas detector with a built-in sampling pump. If it is used for emergency leak detection, you should use a pump suction instrument with a short response time, high sensitivity and resolution, so that you can easily determine the location of the leak.