Thermal mass flow meter features adaptive sensing technology
Mike Edwards
Products FCI Fluid Components International
Fluid Components International has announced its innovative AST thermal mass flow technology for the ST80 flow meters that features an innovative hybrid sensor drive.
The patent-pending measuring technique is said to combine, for the first time, both of the industry’s highly proven constant power (CP) and constant temperature (CT) thermal dispersion sensing technologies in the same instrument.
Complementing this new measurement drive technique are a choice of four different flow sensor element designs to further ensure best installed performance, including a new wet gas solution.
When operating in AST mode, the new flow meters measure in CT during start-up and through the lower flow ranges and will then seamlessly shift into CP mode at mid-range and higher flow rates.
The meters feature extensive global HazEx agency safety approvals for potentially dangerous environment installations.
Approvals include FM, FMc, ATEX, IECEx, and the meter is CE marked. CPA, NEPSI, EAC (TR CU) and CRN approvals have been submitted and are pending. The meter also has been independently evaluated to meet and comply as a SIL 1 device.
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