An analysis of the unique advantages of portable gas detection systems
For portable gas detectors, they are a type of portable gas alarm characterized by small size, light weight, low power consumption, easy portability for detection anytime and anywhere. They use imported gas sensitive components, high accuracy, strong reliability, fast response and recovery time, good gas selectivity, and strong anti-interference ability. Portable gas detectors can be divided into diffusion gas detectors and pump suction gas detectors based on the sampling method. For diffusion gas detectors, the gas in the detection area flows slowly and freely in the air, and the sample gas is introduced into the instrument for detection. This method is affected by the detection environment, such as ambient temperature, airflow, etc. The characteristic of diffusion gas detector is low cost. The pump suction gas detector is equipped with a small air pump, which works by driving the power supply to extract and sample the gas in the test area, and then sending the sample gas into the instrument for detection. The characteristics of a pump suction gas detector are fast detection speed, remote measurement of hazardous areas, and maintenance of personnel safety, similar to diffusion gas detectors.
Compared to the pump suction gas detector, the working principle of the diffusion gas detector is basically the same. The sample gas is detected by the sensor of the instrument and then amplified and sorted by the circuit to convert it into corresponding numerical values for display on the screen. Catalytic combustion sensors are commonly used for combustible gases, while electrochemical sensors are commonly used for toxic gases. Both are essential security facilities for enterprise production.
As a security facility, portable gas detectors play an important role in industrial production safety work. In order to ensure the normal use of gas detectors, we need to test them before use. When testing portable gas detectors, the following aspects should be taken into account: firstly, they should be turned on under normal environmental conditions in non hazardous areas. Secondly, batteries should not be replaced or charged in hazardous areas. This approach will compromise the safety of the instrument itself and may lead to fire or explosion. Thirdly, butane lighters that ignite cigarettes should not be used to test the response of combustible gas sensors; This approach will damage the sensor. Fourthly, do not immerse the gas detector in liquid. Fifth: When the gas detector issues a low power alarm, immediately replace the battery (refer to the instruction manual for battery type). Sixth: Protect combustible gas sensors from exposure to lead mixtures, silicones, and chlorinated hydrocarbons.
For portable gas detectors, it is a handheld gas detector that is small in size, easy to carry, and can detect gas leakage concentration anytime and anywhere. It has the characteristics of high sensitivity, stable operation, fast response and recovery time, good gas selectivity, and strong anti-interference ability. It uses high-performance lithium batteries with long working time, and adopts charging protection and low voltage protection to ensure more reliable battery use and longer lifespan.
