Flammable gas LEL analyzer

Product Introduction

HFID-9000 Type I FID Flammable Gas Explosion Limit (LEL)）AnalyzerUsing 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. The product adopts a body explosion-proof design and can be used in Zone 1 and Zone 2 explosion-proof situations.

Product Features

1HFID-9000In industries such as pharmaceuticals, chemicals, tobacco, and food packaging, there aresignificantThe advantage.

2. Fast response time: T90 ≤ 2S

3. Built in heating pump, suitable for low-pressure sampling conditions

4. The system is heated throughout the entire process to avoid condensation and adsorption of organic matter in the sample gas

5. High measurement accuracy, better than 1% F.S

6. Can simultaneously output THC concentration and explosion limit LEL value

7. Built in EPC flow control for stability

8. The response factors for various types of hydrocarbons are close to 1, with stable measurement and high accuracy

Application scenarios

1. Measurement of total carbon and hydrogen in industrial process gases

2. Monitoring of gas concentration at the inlet and outlet of exhaust gas treatment devices (RTO/RCO/incinerators, etc.)

3. Real time monitoring of total hydrocarbons in emissions purification and chemical cleaning factories

4. Monitoring of Total Carbon and Hydrogen Content in Liquid Oxygen of Air Separation Unit

5. Real time monitoring of organic matter concentration at the discharge outlet of catalytic, biological, and activated carbon treatment devices

6. Real time monitoring of total hydrocarbons in clean gas converted from crude coal gas

7. Real time monitoring of total hydrocarbons (or other organic compounds) in workshops, factory areas, factory boundaries, and ambient air

8. Monitoring and early warning of organic matter leakage in the production process

9. Monitoring and warning of the lower explosive limit of solvent saturated air

Analysis Principle

Analysis principle of hydrogen flame ionization detector (FID):

The principle of hydrogen flame ionization detector (FID) analysis is to use the flame generated by the combustion of hydrogen and air as energy. When organic compounds enter the flame generated by the combustion of hydrogen and oxygen, they undergo chemical ionization at high temperatures, thereby generating 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 Parameters