GE Infrastructure Sensing, a leading provider of precision sensing products

Billerica, Massachusetts, April 6, 2005 .

GE Infrastructure Sensing, a leading provider of precision sensing products, systems and services, introduces OxyTrak, the world’s first in situ flue gas oxygen analyzer that is self- calibrating and requires no reference air. OxyTrak is an innovative sealed reference analyzer that uses a unique, miniaturized zirconium-oxide sensor with a sealed internal reference to accurately determine flue gas oxygen content, even with rapidly changing process conditions.

With the sensor acting in "pump" mode, the current needed to maintain partial pressure equilibrium is proportional to the oxygen content. In addition, the Nernst voltage present during transients is used to instantly indicate the magnitude of oxygen content changes. The small sensor size allows the measurement inputs to reach equilibrium quickly, providing superior speed of response.

The unit is designed for in situ installations with variable probe lengths up to 60 inches (153 cm). The advanced microprocessor-based electronics package features an infrared, through-the-glass keypad; a universal power supply (85 to 264 VAC); 0/4 to 20 mA or 0 to 2 VDC analog output; dual alarms; a fail-safe alarm; and an RS232 or RS485 serial output.

"OxyTrak's sealed reference sensor is the biggest technical innovation in flue gas analysis since the first application of the zirconium oxide oxygen sensor in the 1960s,“ said Doug Mitchell, product manager for GE Infrastructure Sensing. “Because OxyTrak does not require routine calibration, it's easy to maintain and to use—particularly since it is most often mounted on hard-to-reach stacks."

About GE Measurement and Control Solutions
GE Measurement & Control Solutions is a leading innovator in advanced, sensor-based measurement, non-destructive testing (NDT) and inspection and condition monitoring, delivering accuracy, productivity and safety to a wide range of industries, including oil & gas, power generation, aerospace, transportation and healthcare. It has over 40 facilities in 25 countries and is part of GE Energy Services, which provides cleaner, smarter, more efficient solutions for its customers.