NH3 Laser Gas sensor is based on Quantum cascade laser (QCL) technology, the ultra-narrow linewidth of laser is used to accurately select the high intensity absorption spectrum line of ammonia molecule in the mid-infrared band, so as to achieve high selection, anti-interference and high-precision measurement of ammonia molecule.
SUPPLIER: KNESTEL Technologie
Key Features
◆ Optical, contact-less measurement
◆ High selectivity, continuous measurement
◆ Fast response, no cross sensitivities
◆ Self-contained, easy to integrate
◆ Calibration-free
◆ Spectral correlation check
◆ Ultra-low detection limit (ppb)
Parameters
Measuring range (FS) | 0 – 1000 ppm |
Limit of detection (LOD) | < 0.1 ppm |
Linearity | ≤ ± 1 ppm or ± 1 % of measured value |
Zero drift | ≤ ± 0.15 ppm in 8 h |
Span drift | ≤ ± 0.5 % FS in 8 h |
Ambient temperature | 10 – 35°C |
Gas temperature | up to 190°C |
Gas flow | < 2.0 l/min |
Communication | CAN + Modbus TCP/IP + analog output 4 - 20 mA (optional) |
Power supply | 24 VDC |