Air demand analyser

1 August 2012 Analytical Instrumentation & Environmental Monitoring

The Ametek Western Research Model 900 air demand analyser was specifically designed to assist in the control of the combustion air to acid gas ratio in Claus sulphur recovery plants. Used in conjunction with the ASR 900 sampling probe, which provides trouble-free sampling, the Model 900 ensures maximum data availability for optimum operation of all sulphur recovery processes.

It uses high resolution UV technology in a dual beam, multiple wavelength configuration. Resolution better than 0,02 nm is provided by high intensity line source lamps. These sources emit at a fixed wavelength, providing great measurement stability. They also emit low total power, eliminating the potential for sample photolysis. The high resolution enables unparalleled linearity over a wide dynamic range (less than 1% deviation over 4 to 5 orders of magnitude), which in turn leads to simple, robust data analysis. A six-position filter wheel enables one reference and five measure wavelengths. The dual beam configuration, combined with the reference measurement, ensures low noise performance, with minimal baseline and span drift.

When combined with the ASR 900 sample probe, the Model 900 is a complete analytical system, providing maximum performance and minimal maintenance. The ASR 900 probe incorporates a temperature controlled sulphur condenser, providing sulphur vapour control at the sample point and ensuring that no plugging will occur in the sample lines and analyser. An integrated shut-off valve allows servicing without removal of the probe.

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

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