How to select a fixed gas detector?
How to choose a fixed gas detector correctly is very necessary for personnel engaged in detection? There may be different combustible, toxic, harmful, and organic gases in different production scenarios. So choosing the right fixed gas detector is very important. Shenbei Technology Department will provide some specific information for your reference.
1. If methane and other less toxic hydrocarbons are predominant, choosing an LEL detector is undoubtedly appropriate. The principle of combustible gas detection is catalytic combustion, which is a very common detection principle. Calibration of instruments is also very convenient. Because this technology is relatively mature, domestic gas detectors can also meet the requirements of users
The following are recommended domestic and imported fixed gas detectors that have been well received by users: JL268D, JL269 leak detector, ADY-1, HL-200 series. The response from users has also been quite good. Import recommendation: Huarui FGM and SP series fixed gas detectors from the United States; MC-W combustible gas alarm device from BW Corporation in Canada; 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 Delger PAC EX2, X-am 2000 combustible gas alarm. If there are some toxic gases such as carbon monoxide, hydrogen sulfide, ammonia, oxygen, hydrogen, phosphine, etc., it is necessary to prioritize the use of a portable single gas detector or a portable multi gas detector to ensure worker safety. The toxic gas detector uses electrochemical principles for detection. The concentration measurement of toxic gas detectors based on electrochemical principles is usually in ppm units. Note: In the case of detecting these toxic gases, in addition to carbon monoxide and oxygen, it is recommended to consider using imported instruments for other toxic gases besides domestic ones. Import recommendation: BW single toxic gas alarm GAXT series; Honeywell ImpulseXP single detector; Industrial Scientific T40 detector; Odum TX2000 single detector; Delger Pac 5000, pac7000, pac III single toxic gas alarm If there are more organic toxic and harmful gases, considering their low concentration that may cause poisoning to personnel, such as aromatic hydrocarbons, halogenated hydrocarbons, ammonia (amines), ethers, alcohols, lipids, etc., a photoionization detector should be selected instead of using an LEL detector, as this may result in casualties. Import recommendations: American Huarui PGM-7360 benzene detector, PGM-30 detector, PGM-7320TVOC detector, PGM-7340VOC detector, Canadian BW M5 detector, and British ion organic compound detector.
If the gas types cover the above categories, choose a composite gas detector that requires the gas composition of the measured space to be provided in order to better configure the sensor instrument.
