Poisonous gas detector principle category application

With the progress of science and technology, the emission of toxic and hazardous gases has attracted the attention of all walks of life, Poisonous gas detector is mainly used in petroleum, chemical industry, fire fighting, gas, shipping, environmental monitoring, health and epidemic prevention, municipal public utilities, energy and power, metallurgy and foundry, wood processing, food storage, tobacco fumigation, industrial spraying, sewage treatment, scientific research experiments, process control, emergency rescue monitoring and other fields. The Poisonous gas detector can effectively monitor and control the emission of combustible and toxic gases in the production process, thus safeguarding people’s life safety and health.

Poisonous gas detector for the oil industry
Poisonous gas detector for the oil industry

Principle gas detection

A poisonous gas detector is based on semiconductor, photoionization, infrared and Electrochemical gas sensors, and other technical principles, detecting a variety of toxic and harmful gases (such as oxygen, carbon dioxide, carbon monoxide, sulfur dioxide, chlorine, hydrogen sulfide, ammonia, hydrogen fluoride, hydrogen chloride, nitrogen, benzene, toluene, xylene, ethylene oxide, Phosphine, phosgene, chlorine dioxide, bromomethane, sulfuryl fluoride, hydrogen bromide, fluorine gas, sulfur hexafluoride, hydrogen peroxide, hydrogen cyanide, formaldehyde, ozone, nitric oxide, nitrogen dioxide, tetrahydrothiophene, etc.).

FS10201 (1)
Fixed Poisonous gas detector


Classification according to the use method

1.Portable Poisonous gas detector: The instrument will be assembled with a sensor, measuring circuit, display, alarm, rechargeable battery, pump and so on in a shell, and become a one-piece instrument, which is compact and lightweight, easy to carry, and with pump sampling, it can be detected at any time and any place.

2.Fixed Poisonous gas detector: this kind of instrument is fixed on the site, continuous automatic detection, of gas over the limit of automatic alarm, but also automatic linkage of exhaust fans, solenoid valves, and other equipment, can be through the RS485 bus system digital signals, 4-20Ma three-wire current signals or 4G / GPRS wireless transmission form, will be detected in real-time to the gas concentration data transmission to the gas alarm controller system or monitoring center. Gas alarm controller system or monitoring center, the data is presented on the big screen.

4 Gas Monitor with Pump (1)
Portable Poisonous gas detector

Application purpose

  1. Leakage detection: mainly for the leakage of hazardous chemicals and equipment and pipeline combustible gases, liquids (vapors), or toxic gases on-site leakage detection and alarm.
  2. Overhaul Detection: Detect the residual combustible gas, liquid (vapor), or toxic gas after equipment overhaul and replacement, especially before fire detection is more important.
  3. Emergency Detection: When there are abnormal situations or accidents in the production site, combustible and toxic gases should be detected for the sake of safety and hygiene.
  4. Restricted space detection: staff entering the closed storage tanks, sewers, cable trench, underground pipe corridors, filtrate trench, garbage pools, and anaerobic pools to work, must be tested for combustible, toxic, and hazardous gases.
  5. Inspection: Combustible, toxic, and hazardous gases must be detected during health supervision and inspection, fire emergency response, and environmental law enforcement monitoring.