OxyTrak flue gas oxygen analyzer

OxyTrak, an in situ flue gas oxygen analyzer, is self calibrating and requires no reference air. It 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 in. (153 cm). The advanced microprocessor- based electronics package features: an infrared, through-the-glass keypad; a universal power supply (85–264 VAC); 0/4–20 mA or 0–2 VDC analog output; dual alarms; a fail-safe alarm; and an RS232 or RS485 serial output.