FCI AST ST80 and ST100 thermal flow meter

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AST thermal flow meters can be used by those responsible for the extraction, processing, storage, industrial plant distribution, consumption or sub-metering of natural gas.

Manufactured by Fluid Components International (FCI), the FCI Model ST80 Series and the Model ST100 Series thermal flow meters incorporate an Adaptive Sensor Technology (AST).

The technology uses a flow meter hybrid sensor drive, which combines constant power (CP) and constant temperature (CT) thermal dispersion sensing technologies in one flow meter.

AST thermal flow meters measure in CT mode during start-up and through the lower flow ranges and seamlessly shift into CP mode at mid-range and higher flow rates.

They also have a no-moving-parts thermal flow element design, which provides direct mass flow measurement of air and gases with a single process penetration.

FCI claims its Model ST80 Series and the Model ST100 Series are responsive (within 1 s) and accurate to ±0.75% of reading, ±0.5% of full scale, with repeatability of ±0.5% of reading.

They are suitable for use in air/gas temperatures up to 450°C.

Their wide flow range, from 0.08 to 300 NMPS, and array of analog outputs and digital bus communications allow their application in almost any industrial process or manufacturing application.

These models also come with global HazEx certifications for Div.1/Zone 1 level safety.