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DG-EN Series Diesel fumes detection system (Ref : DG-EN)
Single and Multipoint Diesel Fumes Detection System with pneumatic sampling.
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detectors/DG_EN.pdf

DG_EN.doc

The DG-EN is usually installed in bus and truck terminals or maintenance facilities, package distribution warehouses and building loading docks where Diesel fumes pose a threat to indoor air quality. In order to protect the sensor from the Respirable Combustible Dust (RCD) present in Diesel fumes, Acme uses an air pump to draw the sample to the detection unit from the space, where it is filtered and passed to a solid-state infrared CO2 analyzer or an electrochemical NO2 analyzer. Both CO2 and NO2 are acceptable surrogates for the determination of overall Diesel pollution in the space, according to research done by the U.S. Bureau of Mines and CANMET. Outputs available range from 4-20 mA or 4 contact levels in our single-point unit to zone and multiple fan control in our larger panels. Note that this section provides two specifications, one for a CO2-based detection panel and a second with a NO2-based system. NO2 should be the specified detection technology when direct-fired heating is to be installed in the space, which produces excess amounts of CO2.