Heat-Pak For Engine and Vehicle Testing Applications

Lansing, MI – October 23, 2009 –Sierra’s Heat-Pak™ is a heated and controlled particulate package built to the EPA 1065 regulation.

The Heat–Pak™ takes the diluted exhaust sample through a cyclonic separator, and controls the temperature and residence time to the filter face. It contains a cyclonic separator, residence chamber and the ability to be controlled and verified by Sierra Emissions Systems’ Model BG®-3 Particulate Partial Flow Sampling System. The system can also be used in a manual mode with other devices.

Heat-Pak™ Key Features:

• Meets EPA 1065 Regulation
• Plug and play control and verification by the BG-3
• Can be used in manual mode with other devices
• Can be placed within the customer test cell and close to the exhaust stack
• Can also be adapted to any filter multi-changer like Sierra's Automatic Filter Changer
• Maintains the 47 °C within +/- 2 °C

For complete technical information on the Heat-Pak™ visit www.sierraemissions.com or call 800-866-0200 and speak to one of Sierra’s flow experts.

About Sierra Instruments Emissions Systems:

• Sierra Emissions Systems is a wholly owned subsidiary of Sierra Instruments, Inc.
• Sierra Instruments, Inc. is well known as " The Mass Flow Company " and manufactures high-performance mass flow meters and controllers for use in numerous industries and applications throughout the world.
• In 1990, Sierra received the exclusive worldwide license for Caterpillar’s patented micro-dilution technology.
• Sierra's knowledge of mass flow measurement and control, a key to partial flow sampling, and Caterpillar’s vast engine development and emissions testing knowledge formed a formidable technology partnership.
• For well over a decade, this technology partnership has yielded a line of world-class partial flow sampling systems: The Model BG®-1, Model BG®-2, and now the very versatile Model BG®-3 provides accurate, repeatable Engine Particulate Matter (PM) emissions measurements for transient and steady-state test cycles for engine and vehicle testing.

Learn more about Sierra Instruments Emissions Systems at www.sierraemissions.com