May 2007

Process and Laboratory Analyzers

Improve your gas analysis with infrared photometry

Using this technology offers increased performance in demanding processes

Stanley, Z., Servomex Group Ltd.

Traditional gas analysis applications are reliable, cost-effective technologies. Measuring carbon monoxide (CO), carbon dioxide (CO2) and hydrocarbons can be carried out with analyzers based on thick film or electrochemical sensors. Some of these technologies have limitations when the sample gas is flammable, corrosive or toxic. In these cases, alternative technologies have to be adopted, and infrared (IR) photometry can be adapted to demanding process applications, depending on the analyzer detailed design. IR analysis works on the principle that molecules of many gases absorb energy in the IR region of the electromagnetic radiation spectrum. Specific wavelengths of IR energy cause the bo

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