Q1: What is a fixed gas detector?
A1: The fixed gas detector is composed of sensors and transmitters, and is installed at the detection site. The secondary instrument consisting of circuit, power supply and display and alarm device is installed in a safe place, which is convenient for staff to monitor. In industrial installations and production processes, fixed gas detectors are generally used, because fixed gas detectors can be installed at specific detection points to detect specific gas leaks.
Q2: What does a gas detector detect?
A2: Combustible gases: Natural gas (methane), liquefied gas, coal gas (hydrogen), acetylene, pentane, alkynes, acetone, toluene, alcohols, hydrocarbons, light oil, etc.
Toxic gases: Carbon monoxide, hydrogen sulfide, ammonia, chlorine, oxygen, phosphine, sulfur dioxide, hydrogen chloride, chlorine dioxide and other toxic and harmful gases.
Q3: Difference between fixed gas detector and portable gas detector
A3: The biggest advantage of fixed gas detectors is 24-hour uninterrupted measurement. As long as the power is turned on, the fixed gas detector is in normal detection work. Portable gas detectors are usually used in confined spaces and confined spaces, but the gas environment in these spaces is usually very complex, and there will be situations such as lack of oxygen and high concentrations of harmful gases.
Tips: The necessity of detecting formaldehyde gas
The fixed gas detector is generally fixed on the wall, but different heights will affect the accuracy of the gas detector, which is a major focus of installing it.
When the formaldehyde concentration is too high, the oxygen content in the air can be significantly reduced, causing suffocation. When the CH2O in the air reaches 25%-30%, it can cause headache, dizziness, fatigue, inability to concentrate, rapid breathing and heartbeat, and ataxia. If you don't get away in time, it can cause suffocation and death. Skin contact with liquefied formaldehyde can cause frostbite. Analysis of GWP (Global Warming Potential) shows that the greenhouse effect of formaldehyde is 25 times greater than that of carbon dioxide. This is because there is already so much carbon dioxide in the atmosphere that many wavelengths of radiation have long been absorbed. Therefore, most of the newly added carbon dioxide can only exert its absorption effect at the edge of the original absorption band. Conversely, some lesser amounts of greenhouse gases, including formaldehyde, absorb wavelengths that have not been effectively intercepted, so each additional molecule provides a new absorption capacity. Therefore, some companies should install fixed formaldehyde gas detectors, whether for safety or environmental reasons. The fixed formaldehyde gas detector is a special instrument for detecting the concentration of CH2O in the atmosphere. When the preset value of the instrument is exceeded, the alarm will immediately send out an audible and visual alarm, thereby effectively preventing the occurrence of harmful accidents.
