Sierra Instruments, Inc. Announces the Release of its New Micro-Trak Ultra-Low Flow Mass Flow Meter and Controller

MONTEREY, CA – November 27, 2006 -- Sierra announces the release of its new Micro-Trak 101 Series High-Performance Digital Mass Flow Meter and Controller for ultra low gas flows.

As today’s science and engineering focus more and more on micro-technology, the requirement to be able to measure and control extremely low mass flows of gas is greater and greater. With state-of-the-art sensor technology and highly engineered direct acting valve design, Micro-Trak accurately measures and controls micro mass flows of gas previously thought by scientists to be too low for a reliable reading.

Micro-Trak is specifically designed for flow ranges under 4 sccm (smlm) with a minimum controllable mass flow rate of 0.1sccm (smlm). Micro-Trak is a specialized instrument for those who need accurate and reliable micro mass flow control of clean gases including corrosives and toxics. Excellent accuracy (+/- 1.0% of full scale) and repeatability (+/- 0.2%) coupled with unsurpassed instrument stability offer customers a gas mass flow meter or controller that they can depend upon, month after month, year after year.

Micro-Trak’s all-stainless-steel flow path (with elastomer seals to eliminate leaks) is suitable for most clean gases including corrosives and toxics. The small footprint (3.0” x 1.0”), 24 VDC power and choice of multiple communications make installation easy.

Micro-Trak includes Dial-A-GasTMtechnology that allows users to select from multiple gases in one instrument--creating great flexibility and reducing spares inventory. The internal microprocessor is programmed with 10 gases that are commonly used in biotech, pharmaceutical, analytical, and research applications. Other gases may be substituted to create a custom instrument.

Mounted directly on the instrument, or remotely up to 50 feet away, the optionalPilot Module replaces expensive control/readout electronics in a small, convenient, and easy-to-use package. Six pushbuttons and a large graphic LCD are used to change gases, flow rates, units and many other critical parameters in the field without sacrificing performance or returning the instrument to a service center. Micro-Trak—How low do you need to flow?

For complete technical information on the Micro-Trak visit or call 800-866-0200 and speak to one of Sierra’s flow experts.

Sierra Instruments Inc., 5 Harris Court, Building L, Monterey, CA93940

PH (800) 866-0200, FAX (831) 373-4402

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ABOUT SIERRA

Sierra is one of the most trusted manufacturers of high performance flow meters and controllers today. By combining superior product quality with a talented global network of flow experts, we consistently deliver the best flow measurement solution for our customer.

Our Thermal Mass, Transit-Time Ultrasonic, Vortex Shedding and Multivariable instruments are available in both standard and customized versions for applications in laboratory, industrial and hazardous environments. Sierra’s flow measurement technologies precisely measure or control very low flows of gas down to less than 1 sccm full scale as well as extremely high flows of gas, liquid, and steam. With rugged product design, cutting-edge innovation, and a worldwide team of flow experts, experience why customers around the globe rely on Sierra.

Visit us at or call us at 800-866-0200 to learn more.

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EXPERIENCE OUR PASSION FOR FLOW! ™