LY-NDIR Non-Dispersive Infrared NOx Gas Measurement Optical Module（NO，NO₂Simultaneous detection）
The module is specially developed for NOx gas analysis instruments and can simultaneously measure NO2, NO, Automatic compensation of water vapor interference, Ensure that the measurement results are more accurate and reliable, Small size, high stability, easy to integrate, can be applied to vehicle emission, Ship exhaust detection, flue gas analysis and other fields.
The module adopts the principle of non-dispersive infrared absorption and consists of a wide-spectrum infrared radiation light source, a gas chamber, a detector and a signal control and processing circuit. It analyzes the gas concentration by detecting the light attenuation before and after gas absorption. The module adopts a high-performance wide-spectrum infrared radiation light source and a new type of multi-reflection infrared gas chamber designed by Laoying, achieving both high stability and low detection limit. The optical path of the gas chamber can be customized, and the chamber wall does not affect the optical process, so the optical path is more stable and the measurement results are more reliable, without frequent cleaning of the gas chamber and other maintenance.
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Adopting a pulse modulation infrared light source, without the need of mechanical chopping modulation;
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Adopting multi-channel pyroelectric detector,which provides higher sensitivity;
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Constant temperature control ensures good stability
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The mechanical structure can be customized according to requirements.
- TOC detection of water quality
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Ambient air analysis
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Indoor air quality monitoring
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Analysis of waste gas from pollution sources
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Analysis of emission from mobile pollution Sources
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Industrial gas analysis
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Process measurement technology
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Biogas research, etc.
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Greenhouse gas monitoring
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Process control
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Building ventilation system management
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Analysis of CO2 partial pressure and dissolved inorganic carbon
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Atmospheric monitoring and meteorological research
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Technical Indicators |
Specifications
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Measured gas |
NO2 |
NO |
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Measuring range |
0～1000×10-6 |
0～5000×10-6 |
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Indication error |
≤±25×10-6 or ±4% |
0～4000×10-6 |
4001～5000×10-6 |
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≤±25×10-6 or ±4% |
≤±8% |
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Resolution |
0.1×10-6 |
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Repeatability |
≤±20×10-6 or ±3% |
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Response time |
T90 < 4.5s @1.5L/min |
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Operating temperature |
(0～40)℃ |
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Relative humidity |
≤95%RH |
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Calibration |
Zero calibration and span calibration |
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Communication interface |
RS232/RS485 |
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Output signal |
Concentration/Original AD value |
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Power supply |
DC 12V/24V |
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Power |
≤ 50 W (upon power-on); ≤ 10 W (when working stably) |
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Dimensions |
130mm×65mm×70mm |
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Weight |
<0.5Kg |
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Parameters can be customized according to customer requirements，such as range and mechanical structure
