NDIR Gas Sensor Module

When the infrared light passes through the measured gas cell, these gas molecules absorb the infrared light of a specific wavelength, and the absorption relationship obeys the Lambert-Beer absorption law. By measuring the light intensity of the absorption window and the non-absorption window, it is able to calculate the concentration of the measured gas. Imported infrared light source provides highly stable infrared light, which can meet the gas measurement of infrared gas absorption cell; highly sensitive detector cooperates with highly customized two filters with strong selectivity, select specific wavelength light to irradiate to the detector, so as to output voltage waveform with concentration signal, provide microprocessor for collection, calculation and calibration, and obtain concentration signal.

1. Infrared correlation filter technology (GFC) and long optical path gas cell (L-Cell), with the ability to detect ultra-low gas concentrations.
2. Low-temperature cooling infrared detector, low drift, high precision, low power consumption, fast response.
3. High-performance infrared light source, long service life, special structure design to effectively avoid the impact of vibration.
4. Internally self-tuning PID algorithm controls the temperature with high precision.
5. The light source, detector, core circuit, etc. adopt modular design, with high reliability, good scalability and easy maintenance.
6. Standalone gas detection module for easy integration into any detection system or control system.
7. The dense-flow double detector with high sensitivity and reliability adopts the protection block of infrared radiation mode to detect the absorption signal of the gas under test. Compensation is less affected by external environmental factors than the single-channel measurement scheme, and the result is more stable without frequent calibration.
8. Output signal: RS-232/RS-485/4-20mA optional
9. The measuring range can be customized according to customer needs, and the gas pool heating function is optional.