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ST100 Mass Flow Meters

Product Overview

Fluid Components International ST100 series thermal dispersion gas flow meters combine industry leading electronics and advanced flow sensing technology to achieve a flow metering solution for a range of industrial processes and plant applications.

Whether your output needs are traditional 4-20 mA analog, frequency/pulse, or advanced digital bus communications such as HART, Foundation fieldbus, PROFIBUS, or Modbus, ST100 has you covered. ST100’s bus communications have been certified by and are registered devices with HART and Foundation fieldbus. In addition, Emerson Process (Delta V), Yokogawa and ABB (800xA) have tested and verified the ST100 Series’ Foundation Fieldbus interoperability with their systems. 

For more information about ST100 series flow meters, contact a Cross process solutions expert. As an exclusive representative for Fluid Components International, Cross offers the complete line of FCI flow equipment throughout our territories in the mid-Atlantic area, including; Maryland, Virginia, and Washington D.C.

ST100 Mass Flow Meters 1

FCI ST100

Basic Styles in Series

ST100: Insertion, single-point
ST100L: In-line (spool piece), single-point
ST102A: Insertion, dual-element averaging system
ST110: Insertion, single-point with VeriCal™ capability
ST112A: Insertion, dual-element averaging system with VeriCal™ capability
STP100: Insertion, single-point with pressure measurement
STP102A: Insertion, dual-element averaging system with pressure measurement
STP110: Insertion, single-point with pressure measurement and VeriCal™ capability
STP112A: Insertion, dual-element averaging system with pressure measurement and VeriCal™ capability

ST100 Mass Flow Meters 2

FCI ST110

Specifications

Flow Measurement Range:

  • Insertion Style: 0.25 SFPS to 1000 SFPS [0,07 NMPS to 305 NMPS]
  • ST100L In-line: 0.0062 SCFM to 1850 SCFM [0.01 Nm3/h to 3,140 Nm3/h]
    Air at standard conditions; 70°F psia and 14.7 psia [0°C and 1,01325 bar (a)]

Temperature Measurement Range: Up to 850°F [454°C] commensurate with element; see Operating Temperature in Flow Element specification

Pressure Measurement Range (STP Models):

  • Available Ranges:
    0 psig to 50 psig [0 bar (g) to 3,4 bar (g)]
    0 psig to 160 psig [0 bar (g) to 11 bar (g)]
    0 psig to 500 psig [0 bar (g) to 34 bar (g)
    0 psig to 1000 psig 0 bar (g) to 70 bar (g)]

Media: all gases that are compatible with the flow element materials

Accuracy:

  • Flow: ± 0.75% reading, ± 0.5% full scale
  • Temperature: ± 2 °F [± 1,1 °C] (display only, flow rate must be greater than 5 AFPS [1,5 m/sec])
  • Pressure (STP Models): ± 1.0% of span

Temperature Coefficient: With optional temperature compensation; valid from 10% to 100% of full scale calibration

Flow: Maximum ± 0.015% of reading / °F up to 850°F [± 0.03% of reading / °C up to 454°C]

Repeatability:

  • Flow: ± 0.5% reading
  • Temperature: ± 1 °F [± 1°C] (flow rate must be greater than 5 AFPS [1,5 NMPS])
  • Pressure (STP Models): ≤ 0.1% of span

Response Time (Flow):  1 sec. to 63% of final value (1 step change) typical with -FP or -FPC type flow element and AST electronics.

Turndown Ratio: Normally factory set and field adjustable from 2:1 to 100:1 within calibrated flow range; up to 1000:1 possible with factory evaluation of application

Temperature Compensation:

  • Standard: ± 30°F [± 16°C]
  • Optional: ± 100°F [± 55°C]

Calibration: Performed on flow stands using equipment traceable to NIST and ISO/IEC 17025

See how our process solutions team can help improve quality, increase efficiency, and reduce risk

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In the meantime, enjoy these fun facts…

Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.