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NDIR Gas Analyzer CO CO2 CH4 CnHm High-Stability Infrared Detectors Process Gas Monitoring
Here are some key details about NDIR (Non-Dispersive Infrared) gas analyzers:
- Use the principle of infrared light absorption to detect and
measure gas concentrations.
- Each gas has a unique IR absorption wavelength signature.
- Consists of an IR light source, sample chamber, wavelength
filter, and infrared detector.
- The IR light is directed through the sample gas and the filter
removes all but the wavelength absorbed by the target gas.
- As the gas concentration increases, more IR light is absorbed,
reducing the light reaching the detector.
- Common gases measured include carbon dioxide, carbon monoxide,
hydrocarbons like methane.
- Suitable for measurement in the percentage to ppm range. Lower
detection limits up to ppm levels.
- Fast response time - analyses in seconds. Provides continuous
real-time measurement.
- Simple operation with minimal drift. Requires periodic
calibration with standard reference gases.
- Widely used in industrial processes, safety monitoring, emissions
monitoring, and air quality measurements.
- Limitations include interference from gases with overlapping IR
bands and inability to differentiate gas species.
- Leading manufacturers include Siemens, Teledyne Analytical, Nova
Analytical Systems, and Fuji Electric.
Overall, NDIR analyzers offer a simple, cost-effective solution for
many common gas monitoring applications.
NDIR gas analyzer IR-GAS-600 this model high-stability infrared detectors for simultaneously measuring CO, CO2, and CH4. H2 always reads correctly, independent of the background gas composition. An optional non-depleting paramagnetic sensor can be used to conduct O2 analysis. All sensors/detectors are temperature-controlled or temperature-compensated for maximum analytical stability.
Both types of analyzers are available with analysis of:
☑ Measure COppm+CO2+CH4ppm+N2Oppm in the one unit
☑ Measure CO%+CO%+CO2%+CH4%+CnHm% in the one unit
IR-GAS-600 series suitable for process gas analysis
| INFRARED NDIR DETECTOR | |||||
| GAS | Lowest Range | Highest Range | LR resolution | HR resolution | Accuracy FS |
| CO | 0-5% | 0-100% | 0,001 % | 0,01 % | ≤ ±2% |
| CO2 | 0-5% | 0-100% | 0,001 % | 0,01 % | ≤ ±2% |
| CH4 | 0-5% | 0-100% | 0,001 % | 0,01 % | ≤ ±2% |
| CnHm | 0-10% | 0,001 % | 0,01 % | ≤ ±2% | |
| THERMAL CONDUCTIVITY DETECTOR (TCD) | |||||
| H2 | 0-20% | 0-100% | 0,01% | 0,01% | ≤ ±3% |
| ELECTROCHEMICAL DETECTOR (ECD) | |||||
| O2 | 0-25% | 0,01 % | 0,01 % | ≤ ±3% | |
