The new temperature sensors for selective catalytic reduction (SCR) systems are either used as integrated temperature sensors in the SCR tank or as an outside tank temperature sensor to protect the urea from freezing. With their compact design, high reliability and accuracy, EPCOS sensors help SCR manufacturers make their products more reliable, effective and safe. • Urea resistant (ISO 22241-1) • Temperature range from -40 °C up to +85 °C • Short response time • Leak-tight seal is provided by an O-ring • Reduced height for full scale tank level measurement • Customer-specific solutions such as optimized connector or bayonet mount design

Thermal control of the urea Effective SCR systems convert the nitrogen oxides (NOX) of the exhaust gas from diesel engines into diatomic nitrogen (N2) and water (H2O), which helps to reduce the NOX emissions by up to 90% as a requirement for the mandatory Euro 6 emission standard. The urea has to be liquid in order to enable the SCR process. Because urea has a freezing temperature of approximately -11 °C, the heating system has to be switched on to protect the SCR system from freezing. Effective, reliable and fast EPCOS temperature sensors are key components for fulfilling Euro 6 requirements...