Fluid Components International Mass Flow Meter, ST75V/ST75AV
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ST75V/ST75AV Mass Flow Meter

Brand: Fluid Components International LLC (FCI)
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Fluid Components International Mass Flow Meter, ST75V/ST75AV
The ST75 is an accurate, no moving parts, direct mass flow measurement and monitoring solution for fuel gases, air, compressed air, inert and other gas flows within industrial processes.

There are four base models in the series: ST75, ST75A, ST75V, and ST75AV. The "A" suffix models provide enhanced features and HART I/O, the "V" suffix models include built-in Vortab flow conditioners. They are available in six different sizes for direct, in-line installation in line sizes from 1/4" to 2" (6 to 51 mm).
Features
  • Direct mass, standard volumetric or standard velocity flow measurement
  • Triple outputs; flow rate, temperature and total flow
  • HART I/O (ST75A, ST75 AV)
  • Non-clogging, no moving parts
  • 2 line digital display option
  • Small, compact design
  • Easy installation
  • Built-in Vortab flow conditioning (ST75V, ST75 AV)
  • SIL compliant

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Specifications

Brand

Accuracy

  • ± 1 % of Reading, ± 0.5 % of Full Scale

Applications

  • Air Compressor System Control & Point-of-Use Monitoring
  • Burner/Boiler Fuel & Air Feed Lines
  • Chiller Air Flow Measurements
  • Co-Gen & Turbine Generator Fuel Flow Measurements
  • Dosing & Gas Injection Rate Controls
  • Heat Treating Gas Controls
  • Industrial Furnaces, Kilns & Oven Fuel/Air Controls

Approvals & Certifications

  • ISO 9001
  • AS 9100
  • SIL 1 Compliant, Safe Failure Fraction (SFF) 78.5 to 81.1 %
  • Certified Material Test Report (CMTR)
  • ATEX: Zone 1, Zone 21, II 2 G Ex db IIC T6 to T1 Gb, II 2 D Ex Tb IIIC T85° to T300° C Db, IP66/IP67, Ta = -40° to 65° C
  • CE
  • CPA
  • CRN
  • CSA: Non-Incendive Class I, Div. 2, Groups A, B, C, D, T4 Ta = 60° C Indoor Hazardous (Classified) Locations
  • EAC TR CU Russia
  • FM, FMc: Class I, Div. 1, Groups B, C, D, T4 Ta = 60° C, Class II/III, Div. 1, Groups E, F, G, T4 Ta = 60° C, Typical 4X/IP66, Class I, Div. 2, Grade A, B, C, D, T4 Ta = 60° C
  • IECEX: Zone 1, Zone 21, II 2 G Ex db IIC T6 to T1 Gb, II 2 D Ex Tb IIIC T85° to T300° C Db, IP66/IP67, Ta = -40° to 65° C
  • PED

Cable Length

  • 1 to 100 feet (0.3 to 30 metres) for ST75AV
  • 1 to 50 feet (0.3 to 15 metres) for ST75V

Communication

  • HART (Version 7), FieldComm Group Certified for ST75AV
  • RS-232C

Compensated Temperature

  • -18° to 121° C (0° to 250° F)

Conduit Connection

  • 1/2” NPT Female
  • M20 x 1.5 Female

Display

  • Two-Line x 16-Character LCD: Digital Display

Enclosure, Body Material

  • 316 Stainless Steel
  • Aluminum

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# (ANSI 16.5)
  • 1-1/2” (DN 40) - PN 40 (Form C Per DIN 2526 or Form B1 Per DIN EN 1092-1)

Flange Size - 1” (DN 25)

  • 1” (DN 25) - 150# (ANSI 16.5)
  • 1” (DN 25) - PN 40 (Form C Per DIN 2526 or Form B1 Per DIN EN 1092-1)

Flange Size - 1/2” (DN 15)

  • 1/2” (DN 15) - 150# (ANSI 16.5)
  • 1/2” (DN 15) - PN 40 (Form C Per DIN 2526 or Form B1 Per DIN EN 1092-1)

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# (ANSI 16.5)
  • 2” (DN 50) - PN 16 (Form C Per DIN 2526 or Form B1 Per DIN EN 1092-1)

Flange Size - 3/4” (DN 20)

  • 3/4” (DN 20) - 150# (ANSI 16.5)

Flange Type

  • Raised Face ANSI

Flow Rate

  • 0.04 to 559.27 scfm

Frequency

  • Output Signal: 0 to 500 Hz Pulse for Total Flow

Input Power

  • AC: 85-265 Vdc (12 W, Max.
  • CE Marking Approval: 100-240 Vac
  • DC: 18-36 Vdc (6 W, Max.

Length

  • Tee Body: 1.54” to 3.86” (39.12 to 98.04 mm)

Materials of Construction

  • Compression Fitting: 316 Stainless Steel
  • Flow Body: Schedule 40 Stainless Steel

Media

  • Air: Compressed Air, Nitrogen, Oxygen, Argon, Carbon Dioxide & Ozone
  • Inert Gases, Natural Gas, Other Hydrocarbon Gases & Hydrogen

Mounting

  • Integral with Sensor Element
  • Remote Mounting

Mounting Position

  • Horizontal Top or Side Mount
  • Vertical Side Mount

NPT Connection

  • 1” NPT Female
  • 1” NPT Male
  • 1/2” NPT Female
  • 1/2” NPT Male
  • 1/4” NPT Female
  • 1/4” NPT Male
  • 1-1/2” NPT Female
  • 1-1/2” NPT Male
  • 2” NPT Female
  • 2” NPT Male
  • 3/4” NPT Female
  • 3/4” NPT Male

Operating Pressure

  • psig: 240 (kPa: 1,650, bar: 16.5) - Max.

Operating Temperature

  • Transmitter: -18° to 60° C (0° to 140° F)

Output

  • Dual 4-20 mA Analog Output

Output Function

  • Fault Indication Per NAMUR NE43 Guidelines, User Selectable for High (> 21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (21.0 mA) or Low (< 3.6 mA) for ST75A

Pipe Size

  • 1/4” to 2” (6 to 51 mm)

Principle of Operation

  • Thermal, Calorimetric

Process Connection Material

  • 316L Stainless Steel

Process Temperature

  • -18° to 121° C (0° to 250° F)

Repeatability

  • ± 0.5 % of Reading

Sensor, Probe Material

  • 316 Stainless Steel
  • Thermowell Sensor: Hastelloy C

Turndown

  • 3:1 to 100:1

  • Air Compressor System Control & Point-of-Use Monitoring
  • Burner /Boiler Fuel and Air Feed Lines
  • Industrial Furnaces, Kilns and Oven Fuel /Air Controls
  • Heat Treating Gas Controls
  • Air Compressor System Control and Point-of-Use Monitoring
  • Chiller Air Flow Measurements
  • Co-Gen and Turbine Generator Fuel Flow Measurements
  • Dosing and Gas Injection Rate Controls

Documentation

Data Sheets

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