Modbus now available on FCI’s line of compact thermal mass air/gas flow meters

Modbus now available on FCI’s line of compact thermal mass air/gas flow meters
Modbus ST51 is used for measuring biogas digester gas methane and natural gas ST75 thermal flow meters are a compact low cost solution for accurate repeatable direct mass flow measurement of air and gases
Published: 1 August 2019 - 6:30 a.m.
By: Martin Menachery
Process engineers who need to communicate flow measurement information over Modbus about air, or gases flowing in line sizes from 0.25 inches to 24 inches [6mm to 610mm] will find the newly extended lines of ST51A and ST75A flow meters from Fluid Components International (FCI) provide the solution in a highly accurate, rugged, and compact instrument.

The new Modbus option for the ST51A and ST75A flow meters represents FCI’s continued commitment to providing optimal thermal mass flow meter design and value. They combine highly dependable surface-mount, leadfree RoHS compliant electronics with highly accurate, repeatable all-welded, equal-mass flow sensors. Their no-moving parts design is virtually maintenance free and offers an exceptionally long life.

FCI’s ST51A and ST75A flow meters’ Modbus option meets the EIA/TIA-485 standard and provides mass flow rate, totalised flow, and temperature data. Transmission mode is via RTU, or ASCII with standard MS (16 bit), standard LS (16 bit), or Daniel extensions (32 bit). They are ideal for use with single function PLCs, pilot plant projects, or large SCADA systems, or complex plant DCS systems.

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