OxSen^® - Oxygen Trim System

Heat loss resulting from excess air is the single greatest waste of energy in any combustion system, including industrial boilers and high temperature furnaces. With an OxSen^® air/fuel ratio trim system, this heat loss can be reduced, and, the annual fuel costs significantly reduced.

OxSen^® may be applied as a periodic or continuous oxygen monitoring system designed to operate in the most rigorous of industrial enviroments. By cointinuously monitoring and automatically compensating for variations in excess air, OxSen^® accurately maintains the optimum combustion efficiency of the system under all conditions. The result is a substantial fuel savings, and a reduction in nitrogen oxide (NO_x) emissions.

The OxSen^® is not one single product, but a complete line of oxygen monitoring and control systems designed to operate in extreme industrial environments where the temperature of the combustion products may range up to 2800 degrees Fahrenheit and contain chemically aggressive impurities and particulate matter.

Probes

The OxSen^® probe continuously measures the oxygen content of the combustion products. The zirconium oxide cell emits a signal that corresponds to the oxygen content of the flue gas. This signal is monitored and any variation from the desired air/fuel ratio "setpoint" is corrected automatically by adjusting the fuel or air flow.

• Hot and cold sampling probes are available with several optional features, including a weather-proof casing and a separation chamber. The Model 2800 hot probe is capable of withstanding temperatures in the monitored gas of up to 2800^°F. The Model 3100 probe is capable of withstanding temperatures in the monitored gas of up to 1100^°F. Rugged construction and ceramic internal parts make the OxSen^® probe durable and dependable under the worst industrial environments.
• Probes are easy to install and to maintain. In most cases, installation does not require shutdown of the apparatus that is to be monitored. Oxygen cell replacement, including recalibration, takes less than ten minutes. No special gases are required for recalibration as atmospheric air is used to purge and calibrate the instrument. The desired operating oxygen levels or "setpoints" are selected and manually programmed into the controller.

Industrial OxSen Applications

Sensor Probe Cross Section

OXY-11 Control Panel

A closed loop control constantly maintains optimum efficiency of the of the sytem without operator intervention. the controller receives the signal from the probe and automatically delivers the appropriate signal to trim the air/fuel ratio to the "setpoint". The cabinet's front panel provides a visible readout of the oxygen level.

OxSen^® control systems are available in both analog and digital (microprocessor) models. Both models offer integrated sensor purge and sensor calibration, using ambient air in place of special calibration gases.

Features

• Micro-processor based air/fuel ratio contoller
• Advanced control algorithms
• Multi-fuel capability
• Fully characterizeable oxygen setpoint
• On-line calibration
• Remote reporting via modem

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