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Online UV-DOAS Biogas Monitoring System

Gasboard-3500UV

Gasboard-3500UV is the new generation biogas monitoring system that primarily designed based on UV-DOAS technology to measure H2S concentration precisely before and after H2S scrubber, and extended with modular sensor of CH4 (NDIR), CO2(NDIR) and O2 (ECD) to realize online continuously monitoring of biogas quality without purging cycle required.The 2 sampling channels design before and after scrubber enable it to provide an ideal solution to guarantee the H2S scrubber efficiency, protect downstream expensive equipment from the damage of overload H2S, minimize the investment for users and optimize the biogas monitoring process.

Segment: Process Gas Analyzer
Division: Biogas

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Features

Unique technology of UV-DOAS, NDIR and ECD combination.
High & low range H2S measurement, switchable for points before and after scrubber.
UV-DOAS H2S sensor with higher precision and longer lifespan.
Continuous monitoring on H2S, CH4, CO2, O2 for optimized process control.
Modular sensor design enables easy calibration and maintenance.
Flexible gas conditioning configuration, customizable to site requirements.
Stainless steel protective integration cabinet to avoid corrosion in long term operation.
Ex-proof design applicable to outdoor hazardous area installation.
Support up to 4 sampling channels

Specifications

Gas	H2S，CH4，CO2，O2
Technology	H2S: UV-DOAS; CH4:NDIR; CO2: NDIR; O2: ECD
Measurement Range	H2S: 0-500~5000ppm; CH4: 0-100%; CO2: 0-50%; O2: 0-25%
Resolution	H2S: 1ppm CH4: 0.01% CO2: 0.01% O2: 0.01%
Accuracy	±2%F.S.
Repeatability	≤1%F.S.
Response Time	T90＜60s
Gas Flow	(0.7~1.2) L/min
Gas Pressure	(2~50) kPa
Power Supply	AC220V, 100W
Ex-Proof Grade	ExdIICT6 (Analyzer)
Analog	4-20mA
Digital	RS232/485

For more details, please feel free to contact our sales: sales@gasanalyzer.com.cn.