Watlow Worldwide  |   Site Map  |   Site Search: 


Watlow® EXACTSENSE® Exhaust Gas Temperature Sensor Adds CAN J1939 Digital Output Signal for Easy Integration

May 25, 2011

St. Louis – Watlow®, a designer and manufacturer of electric heaters, controllers and temperature sensors, announces the availability of the control area network (CAN) J1939 digital output signal with its EXACTSENSE® high temperature thermocouple for exhaust gas temperature measurement. EXACTSENSE is also available with pulse width modulated (PWM), local interconnect network (LIN) and analog 0-5V output signals.

The CAN J1939 output signal eases integration of EXACTSENSE thermocouples into diesel exhaust after-treatment systems. It requires fewer inputs than a traditional analog sensor and connects easily with the engine control module. The CAN output signal also allows the EXACTSENSE sensor to share self-diagnostic messages with the engine control unit to meet on-board diagnostics requirements.

The EXACTSENSE sensor combines the durability and high temperature capabilities of a thermocouple with an integrated sensor control unit. This combination delivers the accuracy and response time needed to meet demanding global diesel emissions requirements. It is specifically designed to measure exhaust gas temperatures for over the road medium and heavy-duty vehicles, and off-road construction, mining, agriculture, marine and locomotive equipment.

The EXACTSENSE thermocouple is available in a variety of configurations for high temperature applications including diesel particulate filters (DPF), diesel oxidation catalysts (DOC), selective catalytic reductions (SCR), exhaust gas recirculated (EGR), lean nitrogen oxides (NOx) trap (LNT), turbochargers, burners and reformers. The CAN sensor features an accuracy of ±7°C, response time of approximately five seconds in 20 m/sec flowing air, and availability with immersion lengths from 25 up to 200 millimeters.

Watlow is a clean diesel emissions partner, supporting original equipment manufacturers (OEMs), after-treatment system integrators and retrofitters of off-road and medium and heavy-duty diesel engines.

Visit the Watlow booth at the Diesel Emission Conference and AdBlue Forum Europe, June 15-17 at the Hilton Düsseldorf hotel in Germany to learn more about the EXACTSENSE sensor and Watlow’s complete line of diesel emissions solutions.

About Watlow

Watlow designs and manufactures industrial heaters, temperature sensors, controllers and supporting software as well as assemblies – all of the components of a thermal system. The company partners with its customers to optimize thermal performance, decrease design time and improve efficiency of their products and applications.

Watlow brings its experience to numerous industries, including semiconductor processing, environmental chambers, energy processes, diesel emissions, medical and foodservice equipment.

Since 1922, Watlow has grown in product capability, market experience and global reach. The company holds more than 415 patents and employs 2,000 employees working in nine manufacturing facilities and three technology centers in the United States, Mexico, Europe and Asia. Watlow also has sales offices in 16 countries around the world. The company continues to grow, while the commitment remains the same – to provide its customers with superior products and services for their individual needs.

For additional information call your nearest Watlow representative:

Watlow                                                                                                                                                                                                                                                                                             Phone: 1+ (800) WATLOW2, 1+ (314) 878-4600
Fax: 1+ (877) 893-1005, 1+ (314) 878-6814
Internet: www.watlow.com