The Gentech SCR Combined Sensors utilized in the DEF/AdBlue® tanks of diesel powered commercial vehicles with SCR emissions systems can now measure both urea solution level and qualty. The quality sensor, has been integrated into Gentech’s level sensor which is mounted in the top of the DEF/AdBlue® tanks on commercial vehicles. The development will be advantageous to OEM’s as they will be able buy a combined module that will handle DEF/AdBlue® tank quality and level requirements.
SCR
Selective Catalytic Reduction (SCR) is an exhaust after treatment method used with diesel engines to reduce NOx emissions. The SCR system relies on the injection of an aqueous urea solution into the exhaust stream in order to facilitate the reduction of NOx emissions. This aqueous urea solution (32.5% urea and 67.5% demineralised water by weight) is called Diesel Exhaust Fluid (DEF) in North America and is called AdBlue® in other parts of the world. The quality of DEF and AdBlue® is strictly defined by ISO and DIN standards.