FCI Model ST75V Flow Meter

With its no-moving-parts thermal dispersion mass flow sensing element, a solar-powerable FCI Model ST75V Flow Meter with built-in Vortab flow conditioner provides direct mass flow measurement of a gas site without the additional equipment required with other flow measurement technologies. Its non-clogging sensor design operates over a wide flow range with low-flow sensitivity. The flow conditioner provides a fully developed flow profile in seven total pipe diameters.

The flow meter is compatible with solar power systems that provide 24 VDC power without any special modifications. With its rugged NEMA 4X/IP67 rated enclosure, it is suitable for dirty oil and gas production field installations. It features an inline-style flow body providing accuracy to ±1% of reading with flow ranges from 0.04 to 560 SCFM (0.07 to 950 NCMH), depending on pipe size, and repeatability of ±0.5% of reading. It is suitable for line sizes from 6 to 51 mm diameters.

The flow element is constructed with a 316L stainless steel body and Hastelloy C-22 thermowell sensors to resist corrosion. The instrument is approved for use in hazardous/explosive oil/gas production environments. The transmitter outputs include dual 4–20 mA analog outputs, which are user-assignable to flow rate and/or temperature, a 0–500 Hz pulse output for totalised flow and a serial RS232C I/O port. The optional digital display/readout is a two-line LCD displaying flow rate and totalised flow or flow rate and temperature.

In applications with difficult access or display readability, the transmitter can be remote mounted up to 15 m away from the flow element inserted in the pipe.