*mydirectindustry

Catalogs
TDK Electronics Europe
NTC Thermistors Temperature Sensors for Selective Catalytic Reduction (SCR) Tanks

NTC Thermistors Temperature Sensors for Selective Catalytic Reduction (SCR) Tanks

Product catalog summary

Overview
The EPCOS Product Brief 2017 introduces temperature sensors designed for Selective Catalytic Reduction (SCR) systems, which are crucial for reducing nitrogen oxides (NOX) emissions in diesel engines. These sensors are used to prevent urea from freezing, ensuring the SCR system's effectiveness and compliance with Euro 6 emission standards.

Key Features

Urea resistant, compliant with ISO 22241-1.
Temperature range from –40°C to +85°C.
Short response time and leak-tight seal with an O-ring.
Reduced height for full-scale tank level measurement.
Customizable solutions, including optimized connectors and bayonet mount designs.

Technical Specifications

Integrated Urea Temperature Sensor: Temperature range of –40°C to +80°C, response time under 60 seconds, and connector-based design.
Integrated Urea Temperature Compact Sensor: Similar specifications to the integrated sensor but designed for small urea amounts.
Outside Temperature Sensor: Temperature range of –40°C to +85°C, compliant with IP6K6 and IPX9K standards, humidity resistant, and cable-based design.

Applications and Compliance
The sensors are essential for maintaining the liquid state of urea in SCR systems, which is necessary for reducing NOX emissions by up to 90%. They are designed to meet the stringent requirements of the Euro 6 emission standard, contributing to environmental protection.

Important Considerations
The document emphasizes that while the sensors are designed for specific applications, customers must verify their suitability for particular uses. Detailed product information is available in data sheets, and adherence to important notes and product-specific cautions is required.

Catalog excerpts

NTC Thermistors Temperature Sensors for Selective Catalytic Reduction (SCR) Tanks-1

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

Open the catalog to page 1

NTC Thermistors Temperature Sensors for Selective Catalytic Reduction (SCR) Tanks-2

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...

Open the catalog to page 2

All TDK Electronics Europe catalogs and technical brochures

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list