FCI’s new sensor design solves wet gas flow measurement problems

FCI ST80 Wet Gas hiFluid Components International (FCI), an innovator in the design of thermal mass flow meter technology, has announced the new optional Wet Gas MASSter Sensor for the ST80 Series Flow Meters

FCI claims that the new, innovative wet gas (WG) sensor delivers accurate, repeatable gas flow measurement in the presence of even more moisture and condensation droplets. Available with the Model ST80, this new WG sensor can be applied for use in entrained moisture and rain-shielding applications.

The sensor configuration features a mechanical design that keeps moisture, condensation and water droplets away from the thermal flow sensor, thereby maintaining accurate gas flow measurement while minimising errors that could arise from a cooling effect on the sensor that could cause spike or false high reading. The sensor option can be used in applications that have either moisture entrained in the gas (annular mist) or for protection against down the pipe rain in larger, vertical stacks.

A new best practice guide to measurement in moist or wet gas explains how this advanced sensor configuration is designed for use in applications that have a high level of moisture or condensation present in the gas flow stream, which cannot otherwise be removed.

The new sensor option for the ST80 Series relies on standard thermal constant power (CP) technology and optimises the sensor head design and installation to minimise or prevent condensation from contacting the sensor. The wet gas sensor head mechanically shunts the condensate away and never allows it to reach the sensors, which eliminates moisture interference with accurate, repeatable flow measurement.

The rugged ST80 Series Flow Meters with the Wet Gas MASSter Sensor option are suitable for pipe diameters from 1 to 99 inches (25 to 2500 mm) and air/gas temperatures up to 850°F (454°C). They feature an accuracy of ±one per cent of reading, ±0.5 per cent of full scale and repeatability of ±0.5 per cent of reading with flow rates up to 1000 SFPS (305 NMPS) and 100:1 turndown.

Alain Charles Publishing, University House, 11-13 Lower Grosvenor Place, London, SW1W 0EX, UK
T: +44 20 7834 7676, F: +44 20 7973 0076, W: www.alaincharles.com

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