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Emissions Group Mission:

To develop world-class particulate partial flow sampling systems (PPFSS) that provide the highest possible sample data quality, greatly increase testing efficiency, drastically reduce costs, and improve test-cell safety.

Core Focus:

To supply engine emissions testing products that give our customer the ability to develop and certify cleaner engines faster and more efficiently. The Model BG-3 is a fine example of our core focus in action.

Core Products and Services:

Transient Partial Flow Sampling Systems (also steady-state): Model BG-3
Emissions Sampling Tools & Accessories : Filters, Filter Holders, Automatic Filter Changers, Air Scrubbing   Packages, Heated   Sample Lines, Filter Weighing Chambers
Instrumentation & Measurement : Mass Flow Meters & Controllers, Combustion Analysis, Calibration
  Mapping, Fuel Weighers, Fuel Conditioning, Vehicle Simulation
Test Cell Automation : Cell Environment, In-Cell Equipment, Dynamometers
Test Cell Consulting Services

Background:

• 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 patented micro-dilution technology.
• Sierra's knowledge of mass flow measurement and control, a key to partial flow sampling, and Caterpillars   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   systemsóthe Model BG1, Model BG2, and now the Model BG-3.

Matthew J. Olin, President

Message:
"Sierra Emissions Systems is now our fastest growing business unit...our innovative Model BG-3 is currently leading the way for a much broader use of Partial Flow Sampling Systems in the engine emissions research & certification environment."