Combustion Gas Analyzer optimizes safety monitoring.

Press Release Summary:

Third-party certified for SIL-2 implementation in Safety Instrumented Systems, Thermox® WDG-V monitors hot, wet flue gas for excess oxygen, offering solution for combustion process control and safety. Air-operated aspirator draws sample into analyzer and returns it to process, while low-flow sample alarm monitors gas flow at sensors and provides indication of low sample flow. Mounting directly to process flange, analyzer is heated to maintain all sample wetted components above acid dewpoint.

Original Press Release:

Combustion Analyzer with Safety System Integration

New AMETEK Thermox WDG-V improves operating efficiency, pollution control and safety monitoring

A new extractive combustion gas analyzer with industry-leading safety support has been introduced by AMETEK Process Instruments ( As the first instrument in its class to be third-party certified for SIL-2 implementation in Safety Instrumented Systems (SIS), the Thermox® WDG-V offers a complete solution for combustion process control and safety.

Applications include:

• Coal & gas fired power generation

• Petrochemical & chemical refining

• Pulp & Paper

• Institutional & government facility power plants

The WDG-V analyzer monitors hot, wet flue gas for excess oxygen. It also allows operators to lower emissions of NOx, CO and CO2 and improve operating efficiency in power generation and petrochemical refining. Reliable detection of excess oxygen and combustibles (CO) in a fired heater or boiler are critical to the effectiveness of burner management systems. The WDG-V also monitors for methane for safe burner startup.

Unique features of the new combustion analyzer include:

• An improved aspirator design with larger orifice sizes and improved response times even with flame arresters installed

• Low-flow sample alarm that monitors combustion gas flow at the sensors and provides an indication of low sample flow

• Automatic verification of cell and detector response to ensure proper accuracy and operation

• Cell and detector age tracking for proactive calibration or service scheduling

The WDG-V mounts directly to the process flange and is heated to maintain all sample wetted components above the acid dewpoint. Its air-operated aspirator draws a sample into the analyzer and returns it to the process.

AMETEK Process Instruments offers an extensive line of combustion gas analyzers for measuring oxygen, combustibles, methane and other fuel-rich atmospheres. It is a unit of AMETEK, Inc., a leading global manufacturer of electronic instruments and electromechanical devices with annual sales of more than US$3 billion.

Product Sales Contact:

Russia, Germany, Mideast

Jochen Geiger


Tel: +49-2159-9136-0



Rubin Huang

AMETEK Commercial Enterprise (Shanghai)

Tel: +86-21-5868-5111



Rob Fulker

Analytical Control Pty Ltd

Tel: +61 2 95 34 15 33


Latin America

Pedro Gutierrez

AMETEK Process Instruments

Tel: +1 713 466 4900 x6731


Marcelo Moura

AMETEK Process Instruments

Tel +55 19 2107-4106

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