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E-mail
287602434@qq.com
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Phone
15902987944
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Address
ZTE Deep Blue Industrial Park
Shaanxi Promise Technology Co., Ltd
287602434@qq.com
15902987944
ZTE Deep Blue Industrial Park
Lel combustible gas concentration online detectorProduct Introduction
Lel combustible gas concentration online detectorUsing flame ionization detector (FID) technology, it has high sensitivity, good stability, and multiple selectable measurement ranges. It can measure trace amounts of hydrocarbons in high-purity gases to LEL level hydrocarbon content in various gases. It is suitable for real-time analysis of total hydrocarbon concentration and lower explosive limit (LEL) of various organic gases, and is widely used in RTO inlet LEL explosion limit monitoring, VOC removal device removal efficiency monitoring, THC concentration monitoring, etc.
Detection Principle
Analysis principle of hydrogen flame ionization detector (FID): The analysis principle of hydrogen flame ionization detector (FID) is to use the flame generated by the combustion of hydrogen and air as the energy source. When organic compounds enter the flame generated by the combustion of hydrogen and oxygen, chemical ionization is produced at high temperature, which in turn generates ions. To detect flame ions, dual electrodes are used to provide intrinsic differences. After the flame ions are collected, a current is generated, which is amplified by a high impedance amplifier and analyzed to obtain the total concentration of hydrocarbons. In order to avoid condensation of organic solvents in the analysis system, the detector adopts heating and thermal control, and the incoming hydrogen and air are pressure monitored to stabilize the internal temperature and pressure, ensuring the accuracy and reliability of the control system.
Product Features
Fast response time: T90<2S
Total response time<5 seconds
Built in heating pump, suitable for low-pressure sampling conditions
The system is heated throughout the entire process to avoid condensation and adsorption of organic matter in the sample gas
High measurement accuracy, better than 1% F.S
Can simultaneously output THC concentration and explosion limit LEL value
Built in EPC flow control for stability
The response factors for various types of hydrocarbons are close to 1, with stable measurement and high accuracy