Low-cost flue gas oxygen analyser with built-in diagnostics

November 2002 Analytical Instrumentation & Environmental Monitoring

The Thermox WDG 210/Insitu analyser is a cost-effective and durable flue gas oxygen analyser with built-in system diagnostics and over-temperature cell protection circuitry.

Designed for continuous use with a minimum of attention for either indoor or outdoor operation, the analyser is field serviceable with easy access to all components.

The microprocessor-based 210 controller provides menu-driven software, and its backlit, two-line display provides information on % oxygen, cell millivolts, cell temperature, thermocouple millivolts and time/date. The recorder output is fully scalable for 4 to 20 mA or 0 to 20 mA.

The insitu probe has a display range from 0,1 to 100% O2 and an accuracy of ±3% of the measured value or ±0,1% oxygen, whichever is greater. Both controller and probe meet IP56 requirements, and components, alarms and current outputs are all field configurable. Typical applications include combustion control systems, gas, oil or coal-fired boilers, NOX reduction systems and shipboard boilers.

For more information contact Mike Andrews, OEN Enterprises, 011 792 2859, [email protected], www.oenenterprises.co.za

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