NDIR Gas Analyzers
Measurement of the concentration of 1 to 5 components
The Fuji Electric extractive multigas analyser range consists of non-dispersive 5-gas infrared analyzers. They allow simultaneous and continuous measurement by extraction of 1 to 5 gases from:
- CO, CO2, NOx, SO2, CH4 and N2O by single or double beam NDIR technology
- O2 by paramagnetic, Zirconia or electrochemical technology
Features and Benefits
- Simple maintenance thanks to self-diagnostic functions
- Good precision and excellent stability of the measurement over time
- Large backlit display
- Automatic zero and span calibration
- Correction with oxygen
- Modbus® protocol digital link
- Large scale dynamics (1 to 20 configurable)
Detection principle
The mass flow meter determines the amount of infrared light absorbed by the measuring cell.
Mass flow meter:
- It converts the absorption of infrared light into an electrical signal.
- Excellent resistance to interference thanks to the low impedance sensor.
- The absence of moving parts makes the analyzer particularly resistant to vibrations.
ZKJ – 5 components analyser – NDIR dual beam
CO2 – CO – CH4 – NOX – SO2 – O2 – NO – N2O
Ideal for controlling polluting emissions
Uses a highly sensitive mass flow meter as a detector.
Simultaneous and continuous measurement of 5 gases :
Characteristics :
- The reference cell of the double beam principle offers excellent performance
- Low scales from 0-20 ppm
- Excellent zero point stability: ± 1% FS per week
- Integrated interference detectors help reduce cross interference optimally
- Clean and intuitive interface with advanced diagnostic and calibration features
Measuring principle:
- NOx, SO2, CO, CO2, CH4, NO: Non-dispersive infrared absorption method.
- O2: Paramagnetic or electrochemical method (measuring element incorporated in the analyzer) or zirconia method (external analyzer type ZFK7)
ZRE – 5 gas NDIR analyser – Single beam
CO2 – CO – CH4 – NOX – SO2 – O2 – NO – N2O
Compact and easy to use
- Excellent stability over time
- No influence of humidity on the measurement
- Automatic calibration, communication and alarms
Simultaneous and continuous measurement of the concentration of 5 gases:
Characteristics :
- Simultaneous and continuous measurement of one to five components
- Possibility for the user to select two scopes for each component and to modify them freely
- Simple internal structure for easy maintenance
- Compact and lightweight: 483 (W) × 133 (H) × 418 (D) mm, 8 kg
- Complete range of O2 measurement technologies: electrochemical, paramagnetic or zirconia
Measuring principle:
The amount of infrared radiation absorbed in the measuring cell is detected with a micro mass flowmeter. The low impedance micro mass flowmeter has excellent interference immunity, and the sensor, without moving part, is insensitive to vibrations.
Measuring components and ranges
Type | ZRE | ZKJ |
Model | ||
Range | Minimum range | Maximum range |
NO | 0-200ppm | 0-5000ppm |
SO2 | 0-200ppm | 0-10 vol% |
CO2 | 0-100ppm | 0-100 vol% |
CO | 0-200ppm | 0-100 vol% |
CH4 | 0-500ppm | 0-100 vol% |
N2O | _ | _ |
O2 (electrochemical) | 0-10 vol% | 0-25 vol% |
O2 (paramagnetic) | 0-10 vol% | 0-25 vol% |
O2 (external analyser) | 0-5 vol% | 0-25 vol% |