VOCs online monitoring system (FID)

It is mainly used for real-time monitoring of organic pollutants discharged from various industrial

pollution sources.

The system can continuously monitor methane, non methane total hydrocarbon, benzene series, particle concentration, flue gas temperature, pressure, flow rate and other relevant parameters, and make statistics on emission rate, total emission, etc.

So as to effectively manage the measured data. The VOCs online monitoring system consists of VOCs (methane, non methane total hydrocarbon, benzene series) monitoring subsystem, particulate matter monitoring subsystem, flue gas parameters (temperature, pressure, flow rate, humidity) monitoring subsystem and data acquisition and processing subsystem.

Basic parameters

Working principle: hydrogen flame ionization detector (FID)

Test object: methane, non methane total hydrocarbon and total hydrocarbon, toluene, ethylbenzene and xylene

Repeatability: RSD ≤ 3% (total hydrocarbon / benzene);

Accuracy: ± 1% F

Analysis cycle: non methane total hydrocarbon ＜ 60s benzene ＜ 15min

Power supply: 400W, 220V ac/50hz

Working environment: temperature: (-10-50) ℃, humidity: (10% - 90%) RH

Output: 4-20mA, rs232/rs485, Ethernet;

Range drift: ± 1%f.s

Detection limit: ≤ 0.1ppm (methane), 0.05ppm (non methane total hydrocarbon), ≤ 0.1ppm (benzene);

Range (optional)

Methane (0.1-10000) ppm;

Non methane total hydrocarbon (0.05-10000) ppm;

Benzene (0.1-10000) ppm (optional)

Sample speed: sample for analysis: 50ml/min sample renewal rate: 3-10l/min

Air source requirements

Carrier gas: high purity nitrogen (≥ 99.99%)

Combustion gas: high purity nitrogen (≥ 99.99%)

Auxiliary gas: zero grade air (hydrocarbon ＜ 10ppb)