What is the choice of a fixed gas detector?
How to choose a fixed gas detector correctly is essential for safety inspectors? Different production scenarios may have different combustible, toxic, and harmful organic gases. So choosing the right fixed gas detector is very important. The Shenbei Technology Department will provide an introduction to some specific situations for your reference.
1. If methane and other less toxic alkanes are predominant, choosing an LEL detector is undoubtedly the most suitable option. The principle of combustible gas detection is catalytic combustion, which is a common detection principle. The calibration of the instrument is also very convenient. Because this technology is relatively mature, domestically produced gas detectors can also meet user requirements
The following are recommended domestic and imported fixed gas detectors that have been well received by users: JL268D, JL269 leak detector, ADY-1 and HL-200 series users have also responded well. Import recommendation: Huarui FGM and SP series fixed gas detectors from the United States; MC-W combustible gas alarm device from Canadian BW company; Honeywell's ImpulseX1 detector; COMCOS New Universe XP-3110 detector, XP-3160 pump suction alarm, XP-3140 leak detector; RAE Huarui miniEX portable combustible gas detector; Oldham EX2000 detector; Drager PAC EX2, X-am 2000 combustible gas alarm device. If there are some toxic gases such as carbon monoxide, hydrogen sulfide, ammonia, oxygen, hydrogen, phosphine, etc., priority should be given to choosing a portable single gas detector or a portable multi gas detector to ensure the safety of workers. The toxic gas detector adopts the electrochemical principle for detection. Electrochemical gas detectors typically measure concentrations in ppm units. Note: When detecting these toxic gases, besides carbon monoxide and oxygen, other toxic gases other than domestically produced ones can be considered. It is recommended to use imported instruments. For imports, it is recommended to use the BW single toxic gas alarm GAXT series; Honeywell ImpulseXP single detector; Industrial Scientific T40 detector; Odem TX2000 single detector; Delge Pac 5000, Pac7000, pac III single toxic gas alarm device If there are more organic toxic and harmful gases, considering their lower concentrations that may cause poisoning to personnel, such as aromatic hydrocarbons, halogenated hydrocarbons, ammonia (amine), ethers, alcohols, lipids, etc., a photoionization detector should be chosen instead of using an LEL detector, as this may lead to casualties. Import recommendation: Huarui PGM-7360 benzene detector from the United States, PGM-30 detector, PGM-7320TVOC detector, PGM-7340VOC detector, Canadian BW company M5 detector, and British ion organic compound detector.
If the gas types cover the above types of gases, choose a composite gas detector that requires the gas composition of the measured space to better configure the sensor instrument.
