The CSM2000 is a rugged, rack mountable gas turbine engine exhaust smoke measurement system, fully compliant with SAE ARP1179. It is not intended for in-flight testing.

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The sampling module is housed in a 10U high case. Gas inlet from the sampling probe (not included) is via a bulkhead fitting on the rear panel, through a trace heated sample line to one or other of the filter paper holders on the front panel.

The sample is pulled through the sampling line by a stainless steel diaphragm vacuum pump achieving a no flow vacuum of 75 kPa and full flow capacity of 33 standard litres per minute. Gas exhausted by the pump is measure by a positive displacement gas meter and totalised in the control module.

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Sample flow can be diverted through the bypass line to purge the system of air and allow the flow rate to stabilise, in which case it passes through a coarse filter and a rotameter for flow indication. With the bypass closed, flow passes to a pair of valves that allow the operator to select the filter holder for sampling.

Needle valves downstream of the filter holders allow flow rates to be adjusted without changing the composition of the sample.

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The control unit is housed in a 2U high case and displays totalised sample gas mass volume, sample line temperature, pressure, and leak rate.