Combustion analyser for flue gas

April 2014 Analytical Instrumentation & Environmental Monitoring

The reliable measurement of excess oxygen in a fired heater or boiler has always been critical for efficient combustion and process optimisation. The Thermox WDG-V combustion analyser can measure oxygen, combustibles and methane levels in hot, wet flue gas. The analyser provides a reliable and cost-effective solution for monitoring and reducing excess oxygen, thereby lowering emissions of NOx, CO and CO₂ and improving operating efficiency. The measurement of O₂ and combustibles is essential when operating low NOX burners.

Features of the WDG-V combustion analyser include an improved aspirator design with larger orifice sizes; low-flow sample alarm that monitors combustion gas flow at the sensors; automatic verification of cell and detector integrity; and cell and detector age tracking for proactive calibration or service scheduling.

It can be installed as either a stand-alone analyser with analogue/HART, discrete and Modbus RS-485 bi-directional communications or in a typical sensor/controller configuration. With the addition of an AME Vision HMI, it provides a graphical display and membrane keypad, Modbus, TCP/IP Ethernet connection, embedded Web Enabled Interface and USB data collection port.

The WDG-V analyser offers a complete solution for combustion process control and safety, with redundancy and diagnostics that provide end-users all the information required to implement predictive and proactive maintenance programmes. The instrument has been third-party certified for SIL-2 implementation into Safety Instrumented Systems. 

For more information contact Mike Andrews, OEN Enterprises, +27 (0)11 675 4447, [email protected], www.oenenterprises.co.za

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