Fluid Components International (FCI) announces ST80 Series thermal mass flow meter featuring Adaptive Sensor Technology (AST)

  • March 04, 2019
  • FCI - Fluid Components International
Fluid Components International (FCI) announces ST80 Series thermal mass flow meter featuring Adaptive Sensor Technology (AST)
Fluid Components International (FCI) announces ST80 Series thermal mass flow meter featuring Adaptive Sensor Technology (AST)

March 4, 2019 Fluid Components International (FCI) announced the launch of its ST80 Series Thermal Mass Flow Meter featuring Adaptive Sensor Technology (AST).

FCl’s AST thermal mass flow technology for the ST80 Flow Meters features a hybrid sensor drive.  This measuring technique combines both constant power (CP) and constant temperature (CT) thermal dispersion sensing technologies in the same instrument. Complementing this measurement drive technique are a choice of four different flow sensor element designs, including FCI’s wet gas solution.

When operating in AST mode, the ST80 Flow Meters measure in CT during start-up and through the lower flow ranges, and will then shift into CP mode at mid-range and higher flow rates.

The ST80 Flow Meters feature FCI’s no-moving parts flow element design, which provides direct mass flow measurement with a single process penetration.

With no moving parts to plug or foul and clean, the ST80 Flow Meters deliver repeatable mass flow measurement and accurate air and gas flow measurements for process quality, plant safety and environmental compliance.

The ST80 Flow Meters are accurate to ±1% of reading, ±0.5% of full scale and repeatability of ±0.5% of reading. The turndown ratio is factory preset to meet the requirements of the application from a minimum of 2:1 up to 100:1. This meter series operates over this flow range; the insertion style configuration range is: 0.25 to 1000 SFPS (0,07 to 305 NMPS); the in-line style configuration range is: 0.0062 to 1850 SCFM (0,01  to 3140 NCMH).

While a single calibration is sufficient for many processes, the ST80 meters can optionally provide two calibration groups. For example, the meter can be calibrated for two different compositions of mixed gases or two completely different gases. This is especially useful in processes that are seasonally affected by environmental temperature changes, such as wastewater treatment digester gas and landfill gas reporting or recovery systems.

A three-point calibration drift self-test feature is built-in standard with all ST80 Flow Meters.  The tests, run at a low, mid and upper points across the flow range, can be performed on demand from the front panel buttons or programmed to run automatically based on day and time. The self-test is performed in-situ – there is never a need for the ST80 meter to be removed or retracted from process piping, or to suspend the processes’ operation.

The ST80 Series features multiple outputs to interface with control systems and/or set-up or configuration devices. The standard ST80 meter configuration includes: dual 4-20 mA, NAMUR NE43 compliant analog outputs, HART (version 7) and Modbus 485. Optionally available are: Foundation Fieldbus and PROFIBUS PA. All digital bus communications are full two-way I/O.   

The ST80 Series is offered in three styles: (1) no display, (2) with display, or (3) with display and through-the-glass user programming buttons. The display is a backlighted information LCD. It provides users with both digital and bar graph readout of the processes flow rate and temperature, totalized flow, alarm conditions, diagnostics feedback and a user defined label field.

The ST80 Flow Meters are offered in a range of process connection, mounting and installation options including compression fittings, flanged and packing glands and with the transmitter/electronics integrally mounted with the flow element or remote mounted up to 1000 feet (300m) apart. They are suitable for a range of applications in pipe diameters from 1 to 99 inches (25 to 2500 mm)--from compressed air to hydrocarbon gases, single process or specialty gases to biogas mixtures and more.  The meter is available for media temperature service up to 850°F (454°C).  The ST80 transmitter enclosure is NEMA 4X/IP67 rated, selectable for NPT or metric conduit port threading and is available in both aluminum and stainless steel

The ST80 can be ordered for either 24 Vdc or AC input powering. The 24 Vdc unit is a fully isolated DC supply that operates over a wide 19.2 Vdc to 28.8 Vdc range. The AC powered unit will operate from 85 to 265 Vac to ensure universal operation throughout the world. The ST80 meter requires less than 10 Watts maximum power.

The ST80 Series Meters feature global HazEx agency safety approvals for potentially dangerous environment installations. FCI products undergo agency testing and obtain their approvals on the entire instrument, not just the enclosure. 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 ST80 meter also has been independently evaluated to meet and comply as a SIL 1 device.

Fluid Components International is a global company committed to meeting the needs of its customers through innovative solutions for the most challenging requirements for sensing, and measuring flow, pressure and temperature of gases.

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