Brief introduction of portable gas detector, what are its functions
The portable toxic gas detector is a handheld toxic gas detection instrument, and its other features are very distinctive: accurate and sensitive detection, convenient and fast to carry, and simple and easy to use. It is an essential instrument for tunnel construction personnel to install protection, and it is also an important core to ensure safety during the entire work process.
Portable gas detectors can be divided into diffusion type and pump suction type through their sampling principle. The so-called diffusion type is to place the probe in the dangerous zone of detecting gas, and the gas to be measured diffuses into the probe from the space, and the alarm is placed in the monitoring room for indication and alarm. The pump suction type is to pump the gas to be measured into the detection probe. The suction pump is set together with the built-in gas detector. The detector is set at the dangerous place of the gas to be measured, so as to detect and execute the instruction and alarm functions.
Portable gas detector can be used for harmful gas detection, organic voc gas detection, combustible gas detection, single gas detection. Accurately make early warning The development of hidden danger detection technology is changing with each passing day, and its application in the inspection and elimination of accident precursors is becoming more and more extensive. Its development direction is miniaturization and automation, in order to achieve long-term monitoring. The development of portable gas detectors makes the leakage process can be found in the early stage. Some disasters are inevitable.
How to effectively suppress and monitor early warning, and how to rationally use high-tech means to effectively control accidents and reduce casualties and property losses in view of accidents that have occurred, are practical problems that key technologies of production safety need to focus on solving. Through the research on the physical and chemical properties of accidents in the early stage, gas detection and monitoring can effectively carry out pre-disaster suppression, so that accidents that may cause disasters can be controlled in advance while protecting personal safety. The key to transforming from passive extermination technology to a new generation of active prevention and control technology is the core of intelligent monitoring technology.
The application environment of portable gas detectors is usually relatively harsh, and the instrument itself is specially designed to be waterproof and dustproof. The usual protection grades are IP65 to IP67, which is the world's general industrial protection grade representation method, and the last two digits represent the dustproof and waterproof grades. IP65 means that the instrument is impervious to dust and protected from water jets; IP67 means that the instrument is impermeable to dust and protected from water immersion. The protection level of the portable instrument depends on the sampling principle. The diffusion type sampling level is higher, which is IP67. The pump suction type product can only achieve IP65 at most because it cannot be completely waterproof while inhaling and sampling the gas.
The anti-drop design of the instrument itself is also very important, usually 3 meters, 6 meters and 8 meters. If the instrument can still be used normally after falling from a height of 3 meters to the concrete floor, it can also withstand the impact of the general environment. Of course, 8 meters is the best.
