Contact: Andrew J. Gorayski
Phone: 313-769-4094
Fax: 313-769-4097
e-mail: optrand@aol.com

WEB: http://www.optrand.com

August 9,1996

OPTRAND, INC. ANNOUNCES INDUSTRY FIRST COMBUSTION PRESSURE SENSOR FOR OEM APPLICATIONS.

ANN ARBOR, Michigan.

A new fiber-optic combustion pressure sensor, Model AutoPSI-S™, will be on display at the 1996 SAE International Off-Highway & Powerplant Congress & Exposition, August 26-28, 1996, Indiana Convention Center in Indianapolis, Indiana, Booth #1348B.

Designed specifically for industrial applications, AutoPSI-S delivers a complete, low-cost solution for production engine monitoring and control. Its fiber optic and metal diaphragm construction allows for the operation at high level of Electro-Magnetic Interference, high temperatures, and in chemically aggressive environments.

All optics and electronics are packaged in a small size, "smart" connector, eliminating the need for a separate interface unit or signal conditioner. The sensor can be easily powered and directly read by the Engine Control Unit, and an equivalent device.

AutoPSI-S's outstanding specifications include accuracy of 1% or 3% at constant as well as varying combustion gas temperatures over the frequency range of 0.01 Hz to 15 kHz. Also, the sensor can be operated in static pressure mode for calibration with dead weight testers via the diagnostic pin.

Capable of operating at housing temperatures of up to 350 deg C, the sensor is offered in 0-100, 0-200, 0-1000, and 0-3000 psi pressure ranges and is guaranteed to withstand unprecedented minimum of 200 million pressure cycles.

OPTRAND offers the AutoPSI-S sensors in custom OEM housings and specific pressure ranges in addition to standard configurations.