Heated flame ionisation detector

January 2013 Analytical Instrumentation & Environmental Monitoring

The Signal Group’s Model 3000HM heated flame ionisation detectors use the reference method technique for measuring total hydrocarbons (THC, VOC and TOC). The advantage of this method is that it can be used for hot, wet samples. Maintaining an elevated temperature prevents the dropout of heavy hydrocarbons along the sample line.

This detection method is continuous with a fast response time, making it very effective for alarm status monitoring applications and other real time reporting.

The 3000HM is suitable for a wide range of applications, from incinerators to high concentration solvents. With good carbon correlation for aliphatics, alcohols, esters, ketones and aromatics, it determines total hydrocarbon levels. Models are also available for methane only and methane/non-methane output configurations.

The ionisation detector features a catalytic air purifier to provide clean air for FID flame and calibration. In addition, there is an input for zero grade air to provide extra stability on low ranges. The use of a hydrogen/helium mixture is recommended as fuel for applications where oxygen levels are unpredictable in order to minimise the effects of oxygen synergism. The 3000HM is also available with a hydrogen fuel option for ambient applications where oxygen levels are stable.

For more information contact Mike Andrews, OEN Enterprises, 27 (0)11 675 4447, mike@oenenterprises.co.za, www.oenenterprises.co.za

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