Basic knowledge of the analysis of combustible gas detectors
It should be noted that gas detection is increasingly valued by people in our daily lives, and the results of detection are also of great concern. You should know that this can have a great impact on our personal health. A gas detector is an instrument that detects gases, mainly relying on a sensor at the port to sense toxic and harmful gases, in order to achieve the purpose of alarm. Most gas detectors are mainly used for industrial and environmental monitoring. Let's take a brief look at the monitoring of gas detectors in industry.
The combustible gas detector is a gas concentration detection instrument that integrates a gas detector and a gas alarm controller. The gas detector can be directly powered by a 220V power supply. The toxic gas detector uses imported electrochemical/catalytic combustion sensors, which have the advantages of stable signal and high precision. The explosion-proof wiring method is suitable for various dangerous places. Its product features: 1. Advanced microprocessor technology for combustible gas detectors; 2. Range specifications can be determined by users according to actual requirements; 3. 220V Ac AC power supply; 4. On site concentration display, sound and light alarm; 5. Fast response speed and high measurement accuracy; 6. The output signal can be determined by the user according to actual requirements; 7. Relay output (optional) RS485 bus output (optional).
In addition, for the detection principle of combustible gas detectors, catalytic combustion/electrochemical detection method, diffusion working method, long-term continuous operation output signal relay output or RS485 output (optional) wiring method, model RVVP3 1.0mm2 structural material, die cast aluminum explosion-proof mark Ex dIICT6 protection level IP65, working humidity 90% RH, working temperature -20-50 ℃ (special requirements depending on needs). Combustible gas detectors belong to national mandatory calibration measuring instruments and are widely used in industries such as metallurgy, petroleum, chemical, petrochemical, coal, as well as municipal gas, storage, transportation, hotels and fire departments.
When combustible or toxic gases leak in the environment and the gas concentration reaches the explosion or poisoning critical point set by the detector, the combustible gas detector will emit an alarm signal to remind workers to take safety measures to prevent explosions, fires, and poisoning accidents, thereby ensuring safe production. Due to the normal use of the detector sensor, its sensitivity naturally decreases by 10% to 30% every year. If the sensitivity of the detector sensor decreases, and the leaked gas concentration reaches the lower explosive limit without timely alarm, there will be a risk of explosion. Therefore, combustible gas detectors need to be calibrated regularly every year to ensure the accuracy and reliability of their performance and measurement values.
At the same time, for gas detectors, gas sensors are mainly used in industrial applications to detect harmful gases such as carbon dioxide, nitrogen oxides, sulfur oxides, ammonia, hydrogen sulfide, and chlorine in the petrochemical industry; Detection of highly toxic gases such as organic solvents and phosphanes in the semiconductor and microelectronics industries; The detection of hydrogen gas generated during the deterioration process of power transformer oil in the power industry; Testing the freshness of perishable foods such as meat in the food industry; The automotive and kiln industries detect oxygen in exhaust gases to control combustion and achieve dual goals of energy conservation and environmental protection; Highway traffic detection detects the concentration of ethanol gas in the driver's breath to prevent drunk driving and reduce traffic accidents. With the progress of the times, I think the use of gas detectors will become more and more widespread, and the future will be even more unpredictable!
