Ammonia analyzer SEMTECH® NH3

exhaust gasPEMSautomobile gas emission

The SEMTECH® NH3 module is the newest addition to the DS+ PEMS product family. It measures NH3 concentration in raw exhaust from gasoline or diesel vehicles or non-road equipment using tunable diode laser (TDL) spectroscopy. In order to prevent loss of NH3, the sample is measured “wet” (without removing any of the water vapor from the exhaust) with a heated line and sampling system. A special heated filter and drain system protects from accidental liquid contamination in the TDL bench, which is always a risk when performing cold start testing. Features Highly accurate and linear tunable diode laser technology Minimal NH3 loss and fast response time Low noise and analyzer drift Protection from liquid contamination in the gas bench Direct Heated line connection supporting lines up to 5 meters RDE post-processing software supporting NH3 measurements is available Designed for optional stand-alone operation or use with other measurement systems Specifications Max Range (Full Scale / Max): 0 to 1500 ppm Sample Flow Rate (nominal): 5 l/min Bypass Flow Rate (nominal): 3 l/min Power: 12 VDC nominal (11.0 – 14.5 VDC) Size (WxDxH): 43.7 x 31.2 x 13.5 cm (17.2 x 12.3 x 5.3 in.) Weight: 11 kg (24 lbs.)