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Servomex launches new analyser

Published by , Senior Editor
Hydrocarbon Engineering,

Servomex has announced the launch of its SERVOTOUGH Laser 3 Plus range - the world’s smallest cross-stack Tunable Diode Laser (TDL) gas analysers, which can be optimised for combustion, ammonia slip and process control applications in the hydrocarbon processing sector.

The Combustion version can be optimised for O2, CO, or for a combination of CO and CH4 measurements. The Combustion CO and Combustion CO+CH4 models can be used for safety and control applications in gas-fired, oil-fired and coal-fired processes. They can monitor CO in flue gas to trim oxygen levels and optimise combustion efficiency and safety. The CO+CH4 version will also monitor light-off and running conditions to maximise safety.

The Combustion O2 version is optimised to measure oxygen in flue gas to control oxygen levels and optimise combustion efficiency. Uniquely, it uses up to two absorbance lines to measure oxygen from ambient to 1500oC, utilising air or nitrogen purge gases.

The Process O2 and CO versions monitor oxygen and carbon monoxide in processes where such monitoring is vital for the safe, efficient and reliable running of the process, and is essential for safety applications. It also uses Servomex’s cuvette line lock technology to avoid signal drift.

By using a cuvette filled with the gas of interest – either NH3, O2 or CO – the analyser has a reference that is always available and continuously scanned.

These analyser versions can be used for combustion and process control in power stations, incinerators, thermal crackers and oxidisers, process heaters, coal mills and furnaces.

An emissions control version of the Laser 3 Plus is also available, monitoring ammonia slip in catalytic or non-catalytic NOX reduction systems.


Targeted at gas analysis in the hydrocarbon processing, fired process and power generation market sectors, the Laser 3 Plus is an upgrade of Servomex’s MiniLaser range.

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