Flue gas analyzer / oxygen / carbon dioxide / carbon monoxide
Gasboard 3800P Hubei Cubic-Ruiyi Instrument CO., LTD


  • Measured entity:

    oxygen, carbon dioxide, carbon monoxide, hydrogen, exhaust gas, sulfur dioxide, flue gas, stack gas

  • Measured value:

    concentration, combustion

  • Configuration:


  • Other characteristics:

    continuous, monitoring, real-time, digital, electrochemical, sampling, high-performance, precision, RS485, cost-effective, infrared


It is portable type and used to measure concentration of SO2, NO, CO, CO2 and O2 from stack or boiler emission gases, in which SO2, NO, CO and CO2 are measured by micro-flow infrared sensors and O2 by electrochemical sensor, with optional gas temperature, pressure, velocity etc, calculating combustion efficiency, lambda, etc.

Combustion and emission control research or certification of Continuous Emission Monitoring System (CEMS), combustion efficiency monitoring for various industrial furnaces or refuse incinerator and boiler.

Measurement: SO2, NO, CO, CO2, O2
Technology: SO2, NO, CO, CO2 (Micro-flow NDIR)
O2 (Electrochemical)
Range: SO2: 0-2000ppm
NO: 0-2000ppm
CO: 0-5000ppm
CO2: 0-25% 
O2: 0-25%
(Note: measurement range can be customized by the requirement.)
Resolution: SO2, NO, CO: 1ppm
CO2, O2: 0.01%
Precision: SO2, NO, CO, CO2 ≤±2%
O2 ≤±3%
Repeatability: SO2, NO, CO, CO2, O2 ≤1%
Zero/Span drift: SO2, NO, CO, CO2 ≤±2%
O2 ≤±3%
Response time (T90): <10s (NDIR)
Warm-up time: 30 minutes
Communication Interface: RS232
Work temperature: 0-50℃
Relative humidity: 5-85%
Ambient pressure: 86-108kPa
Power supply: AC 220V 50Hz±1Hz

Gas analyzer features:
1. Innovative micro-flow NDIR technology.
2. Measure SO2, NO,CO,CO2,O2 and optional temperature, pressure and flow.
3. Less interference of H2O for SO2 and NO measurement.
4. Built-in zero pump and auto zero calibration with fresh air.
5. Optional printer.
6. Calculation of Lambda and combustion efficiency.
7. Touch screen.
8. USB output.


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