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Mass Flow Control (MFC) Mass Flow, Temperature and Pressure: New MFC Devices

Editor: Dr. Jörg Kempf

Fluid Components International (FCI) has launched the new ST100 series of continuous thermal mass flow meters. The devices are able to measure gas mass flow rates, total flow, temperature and pressure depending on the model family.

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FCI developed the advanced ST100 Series Flow Meters in response to countless hours of discussions with a wide range of instrument, process and plant engineers who wanted both more comprehensive measurement information as well as the flexibility to adapt to plant and process control technology they might deploy in the future. (Picture: FCI)
FCI developed the advanced ST100 Series Flow Meters in response to countless hours of discussions with a wide range of instrument, process and plant engineers who wanted both more comprehensive measurement information as well as the flexibility to adapt to plant and process control technology they might deploy in the future. (Picture: FCI)

The new ST100 series can be used with conventional 4-20 mA analog, frequency/pulse, alarm relays or advanced digital bus communications such as Hart, Foundation Fieldbus, Profibus or Modbus. The units store up to five calibration groups, accomodating to broad flow ranges. Available as an option is FDI’s new patent-pending SpectraCal Gas Equivalency calibration method that allows the user the select and switch between ten common process gases. The ST100 devices feature an on-board data logger with 2-GB micro-SD memory card capable of storing 21 million readings. The series consists of two model families: the ST and ST.P. The ST family measures mass flow and temperature, while the ST.P devices also have an integrated pressure measurement. Both designs include single-point and dual-element models as configurations. According to FDI the new devices can be calibrated to measure the flow rates of most process gases, including wet, dirty or even mixed gases. The basic insertion style air/gas meter use a thermal flow sensor that measures flow rates from 0.25 up to 1000 standard feet per second (0.07 to 305 normal meter per second) with an accuracy of ±0.75 percent of reading, ±0.5 percent of full scale.

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