Portable gas detector is used for staff to carry with them to ensure that in the toxic and hazardous gas environment can safely work in the basic protection, different operating environments, different requirements, the use of portable gas detectors are different, the following is the type of portable gas detectors.
1.According to the use of the place.
According to the use of occasions, portable gas detectors can be divided into two types of home use and industrial use. This is a relatively large classification, home portable gas detector and industrial portable gas detector is never mixed. The so-called home, mainly for ordinary families, small entertainment venues and small factories and small chemical laboratories and other environments, the actual gas concentration is relatively low, the detector's measurement range is also small, and does not need to have explosion-proof features, the price is also relatively cheap. While the industrial portable gas detector, mainly used in large factories and mines, requiring very high accuracy, more expensive, must have explosion-proof function.
2.According to the type of sensor.
The sensor is the core component of the portable gas detector, used to detect the concentration of gas, according to the type of sensor, portable gas detector can be divided into: semiconductor, solid electrolyte, electrochemical, catalytic combustion, infrared, etc.. This is divided according to the working principle of the sensor, the different environments on the sensor.
3.According to the sampling mode.
Portable gas detector according to the sampling method is divided into two types of pump suction and diffusion, pump suction requires the use of sampling pumps to sample the gas in the measured environment, and then sent into the detector for detection, and diffusion gas detector only need to directly place the instrument into the measured environment, you can detect in real time, more convenient to use, but more dangerous.