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The FCI Model ST112 is a dual-element system that can be applied in an averaging mode or as two discrete and independent sensors operating through a single transmitter. 

A single dual-element instrument can result in significant cost and space savings compared to installing and integrating two single-element instruments.

Model ST112 features FCI’s exclusive patented VeriCal system. VeriCal provides you with the ability to perform periodic field validation and verification of the flow meter’s measuring performance and calibration without extracting the flow meter from the pipe or process.
Features
  • Validate performance on-site in minutes
  • Comply with ISO and local regulations for periodic calibration verification
  • Compatible with more than 200 gases 
  • Direct mass flow measurement 
  • Dual function – flow and temperature 
  • Temperature service to 260° C (500° F) 
  • No moving parts, non-clogging 
  • Easy single point insertion 
  • Multiple Analog outputs 
  • Extensive bus communications options 
  • Agency approvals on full instrument 
  • Provides in-situ flow element cleaning 
  • On-board data logger 

Specifications

Accuracy

  • Gas Specific Calibration & SpectraCal™ Gas Equivalency: ± 0.5 % of Full Scale
  • Gas Specific Calibration: ± 0.75 % of Reading
  • SpectraCal™ Gas Equivalency: Typically ± 4 % of Reading
  • Temperature (Display Only, Flow Rate Must be greater than 5 AFPS [1.5 m/sec]): ± 1.1° C (± 2° F)

Approvals & Certifications

  • AS 9100
  • ISO 9001
  • ATEX: Zone 1, II 2 GD Ex d IIC T4
  • CE
  • CPA
  • EAC TR CU Russia
  • FM, FMc (Canadian): Class I, Div. 1, Hazardous Locations, Groups B, C, D, E, F, G
  • GOST-R, GOST-K
  • IECEx: Zone 1, II 2 GD Ex d IIC T4
  • INMETRO
  • NEPSI

Cable Length

  • Remote Transmitter Configuration (Interconnecting Cable): up to 1,000 feet (300 metres)

Cable Material

  • PVC Jacketed
  • Teflon Jacketed

Communication

  • Ethernet
  • FOUNDATION Fieldbus H1
  • HART (Comes Standard with Analog Outputs, V7 Compliant)
  • Modbus Via RS-485
  • On-Board Data Logger
  • PROFIBUS PA
  • USB

Conduit Connection

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

Delay Time

  • 0 to 99.9 seconds

Display

  • Large 2” x 2” (50 x 50 mm) LCD, Digital Plus Bar Graph & Engineering Units

Enclosure, Body Material

  • Transmitter / Electronics & Local Enclosure (Remote Configuration): Polyester Powder-Coated Aluminum
  • Transmitter / Electronics: Stainless Steel

Environmental Protection

  • IP66
  • IP67
  • NEMA 4X

Flange Material

  • 316L Stainless Steel
  • Carbon Steel
  • Hastelloy C

Flange Size - 1-1/2” (DN 40)

  • 1-1/2” (DN 40) - 150# ANSI
  • 1-1/2” (DN 40) - 300# ANSI
  • 1-1/2” (DN 40) - PN 40 (DIN)

Flange Size - 2” (DN 50)

  • 2” (DN 50) - 150# ANSI
  • 2” (DN 50) - 300# ANSI
  • 2” (DN 50) - PN 16 (DIN)
  • 2” (DN 50) - PN 40 (DIN)

Flow Rate

  • Air at 21.1° C (70° F) & psi a: 14.7 (kPa: 101.3, bar: 1.013) at 0° C (32° F): 0.25 to 600 sfps (0.07 to 172 NMPS)

Hysteresis

  • 00.0 to 99.9 Counts

Indication

  • Relay/Alarm Status

Input

  • Auxiliary Input: Two 4-20 mA Input Channel

Input Power

  • 19.2-28.8 Vdc 50/60 Hz
  • 24 Vdc ± 20 %
  • 85-265 Vac

Insertion 'U' Length

  • 1” to 60” (25 to 1,524 mm)

Media

  • Air
  • Gases (Compatible with the Flow Element Material)

Mounting

  • Integral Mounting
  • Remote Mounting

Mounting Position

  • Horizontal, Flow Right-to-Left or Left-to-Right
  • Vertical Down or Up

NACE & NIST

  • Calibration: Performed on NIST Traceable Facility

NPT Connection

  • Fixed Connection: 1” NPT Male
  • Retractable Packing Gland: 1-1/4” NPT Male

Operating Pressure

  • psig: 1,000 (kPa: 6,900, bar: 69)

Operating Temperature

  • Flow Transmitter/Electronics: -18° to 54° C (0° to 130° F)

Output

  • Standard Output Plus Two (2) 2 A SPDT Relays
  • Three (3) 4-20 mA, 0 to 1 kHz, or 0 to 10 kHz Pulse/Frequency

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 (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)

Packing Material

  • Graphite
  • Teflon

Process Temperature

  • -40° to 260° C (-40° to 500° F)

Repeatability

  • Flow: ± 0.5 % of Reading
  • Temperature (Flow Rate Must be greater than 5 AFPS): ± 1° C (± 1° F)

Rotation

  • Display is Electronically Rotatable: 90° Increments to Optimize Viewing Angle

Sensor, Probe Style

  • Insertion, Dual-Element System with VeriCal Capability (FP Style)

Sensor, Probe Type

  • Precision, Wide-Ranging Platinum RTD

Temperature Coefficient

  • Flow: ± 0.015 % of Reading/°F up to 250° F [ ± 0.03 % of Reading/°C up to 121° C], Max.
  • Temperature Compensation: 10 to 100 % of Full Scale Calibration

Turndown

  • Factory Set & Field Adjustable: 10: 1 to 100: 1 within Calibrated Flow Range

Wetted Materials

  • Flow Element: 316L Stainless Steel
  • Flow Element: Hastelloy C-276
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