Analyser for NOx detection.

As part of its comprehensive emissions monitoring analyser range, Servomex, the world leader in gas analysis, provides a key solution to cover the broadest range of emissions applications involving oxides of nitrogen.

The SERVOPRO NOx is a versatile analyser which uses the time-proven Chemiluminescence Detection (CLD) method to measure NO or NO/NO2/NOx concentrations, all in one package. The standard analyzer can be equipped with the Servomex Paramagnetic O2 sensor, and in addition there is a heated CLD version available for vehicle or engine certification testing.

The analyser is ideal for continuous emissions monitoring of industrial stationary sources, as well as ambient air monitoring. Using a photodiode equipped with a Peltier cooler to detect chemiluminescent light at speeds up to 5Hz, the NOx is a perfect solution for emissions testing in engines and vehicles.

Delivering an excellent linear range from trace levels to 1000s of ppmv concentrations, the NOx allows for user-selectable measurement ranges from 0-3ppm to 0-3,000ppm, all of which can be changed and recalibrated in the field, manually or remotely.

The standard version includes a Paramagnetic oxygen channel, internal zero/sample/span valves, and an internal sampling pump. A wet to dry conversion option is also available.

Barbara Marshik, Servomex’s Market Segment Manager - Power, said: “The SERVOPRO NOx is a must-have solution not only for any industrial stationary source but it is also an excellent choice for any mobile-source NOx emissions application. Using a high-sensitivity photodiode detector instead of a standard photomultiplier type ensures a long-lasting detector that requires no maintenance. With flexible ranges, ultra-low detection limits and a high dynamic range to meet any application requirements, the analyzer offers the highest level of performance for a low cost of ownership.”

The NOx joins the SERVOPRO SO2, which uses pulsed Ultraviolet (UV) Fluorescence technology, the SERVOPRO HFID which uses a heated-oven, Flame Ionization Detection-based detector for total hydrocarbons, methane and non-methane hydrocarbon detection, and the SERVOPRO 4900 multi-gas analyzer. These analyzers offer a comprehensive solution for monitoring NO, NO2, NOx, SO2, methane, total hydrocarbons, and non-methane hydrocarbons in stationary and mobile-source emissions applications that require the ultimate in low-level emissions monitoring.

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