Model FT2A Thermal Gas Mass Flow Meter

Brand: Fox Thermal Instruments

The Model FT2A has a large selection of communication protocol options available intrinsically (without any other equipment).

Options include: BACnet MS/TP, RS485 Modbus RTU, Profibus-DP, DeviceNet, or Ethernet Modbus TCP.
Features
  • Measures process gas flow rate/total and temperature
  • Standard USB port, optional BACnet MS/TP, RS485 Modbus, Profibus-DP, DeviceNet, or Ethernet Modbus TCP
  • Standard on-board display and configuration panel
  • Equipped with the Power Pro™ thermal mass flow sensor
  • One discrete output is programmable for either pulse (for totalizing flow) or alarms
  • One discrete input to reset total or select a different calibration on 2 gas curves
  • 4-20 mA output proportional to mass flow rate
  • FM and FMc approved for Class I, II, III, Div 2, Groups A, B, C, D, E, F, G, T4 hazardous locations; NEMA 4X approved; Remote NEMA 4X electronics enclosure with explosion proof sensor j-box
  • CE Approved
  • NIST traceable calibration
  • Wide measurement range
  • 1% R + 0.2% FS flow accuracy
  • 24 VDC or optional 100-240 VAC in local or remote enclosures
  • Insertion, Inline & Remote Styles
  • USB Port, free FT2A View™ Software
  • 2 x 4-20 mA outputs
  • FM/FMc approvals

Specifications

4-20 mA Loop Verification

  • Simulation Mode used to Align 4-20 mA Output with the Input to Customer’s PLC/DCS.

Cabling to Remote Enclosure

  • 5-Conductor, 18 AWG, Twisted, Shielded, 100 feet Max.

Calibration

  • Factory Calibration to NIST-Traceable Standards

Enclosure

  • FM (U.S.) & FMc (Canadian) Approved for Class I, II, III, Div. 2, Groups A, B, C, D, E, F, G, T4A Hazardous Locations. NEMA 4X & CE Approved. Options: Remote NEMA 4X Electronics Enclosure with Explosion-proof Sensor J-box.

Flow Accuracy

  • Inline - ± 1 % of Reading ± 0.2 % of Full Scale. 8 Diameters of Straight, Unobstructed Pipe Upstream & 4 Downstream.
  • Insertion - ± 1 % of Reading ± 0.2 % of Full Scale. 15 Diameters of Straight, Unobstructed Pipe Upstream & 10 Downstream.

Flow Range

  • Inline - Pipe Size scfmNm³/hour 0.25” 0 - 7.5 0 - 11.8 0.5” 0 - 125 0 - 200 0.75” 0 - 220<
  • Insertion - Pipe Size scfmNm³/hour 1.5” (40 mm) 0 - 840 0 - 1,325 2” (50 mm) 0 - 1,400 0 - 2,210 2.5” (63 mm) 0 - 2,0
  • Note: Standard Conditions of Air at 70° F & One Atmosphere. Consult Factory for Other Gases, Pipe Sizes, & Flow Ranges Other Than Those Listed.

Flow Rates

  • 15 to 60,000 SFPM (0.07 to 280 NMPS) - Air at 70° F (20° C) & 1 ATM

Flow Repeatability

  • ± 0.2 % of Full Scale

Flow Response Time

  • 0.9 seconds (One Time Constant)

Flow Units (Field Selectable)

  • scfm, scfh, NMPS, Nm³/M, Nm³/hour, Nm³/D, NLPS, NLPM, NLPH, MCFD, MSCFD, SCFD, MMSCFD, MMscfm, SMPS, Sm³/hour, LB/S, LB/M, LB/H, LB/D, KG/S, KG/M, KG/H, SLPM, SFPM, MT/H, Sm³/M

Gas Pressure (Maximum)

  • Check with Factory for Higher Pressure Options. Note: Pressure Ratings Stated for Temperature of 100° F (38° C).
  • Inline - NPT(0.25” - 6”): 500 psig (34.5 barg) 150# Flange: 230 psig (16 barg)
  • Insertion - 500 psig (34.5 barg)

Inputs Power (Power Consumption):

  • Input Power (without the Anybus Serial Communication Option): 24 Vdc, (± 10 %), 0.4 Amps (Standard DC Power) 100 to 240 Vac ~(+10 %-15 %), 50/60 Hz, 0.2 Amps (with AC Power Option).Input Power (with Anybus Serial Communication Option): 24

Installation

  • Inline - Compression Fitting Included with Flow Body
  • Insertion - Fox Thermal-supplied Compression Fitting Connects to Customer-supplied 3/4” Female Coupling Welded to Pipe.

Optional Serial Communication

  • RS-485 Modbus, BACnet MS/TP, PROFIBUS-DP, DeviceNet or Ethernet Modbus TCP.

Outputs:

  • Two Isolated 4-20 mA Outputs (One for Flow Rate & a second is Programmable for Flow Rate or Temperature), Fault Indication Per NAMUR NE43.Isolated Pulse Output 0 to 100 Hz, 5 to 24 Volts P/p for Flow (The Pulse Output Can be used as an Is

Port

  • Mini USB Communication Port is Standard.

Relative Humidity

  • 90 % Relative Humidity Max.

Retractor Assemblies

  • Packing Gland Assembly: 125 psig (8.6 barg) Max. High Pressure (Crank) Retractor: NPT 600 psig (41.4 barg), ANSI 150 Flange & ANSI 300 Flange, No Valve Supplied.

Sensor Material

  • 316 Stainless Steel Standard. Hastelloy C-276 Optional.

Software:

  • The Free PC-based Software Tool - FT2A View™ - Provides Complete Configuration, Remote Process Monitoring, & Data Logging Functions.

Temperature Accuracy

  • ± 1.8° F (± 1.0° C) -40° to 250° F (-40° to 121° C), ± 3.6° F (± 2.0° C), 250° to 650° F (121° to 343° C), 60 SFPM Min..

Temperature by Enclosure

  • DC Power: -40° to 158° F (-40° to 70° C) AC Power: -4° to 158° F (-20° to 70° C)

Temperature by Sensor Type

  • ST Sensor: -40° to 250° F (-40° to 121° C) HT Sensor: -40° to 650° F (-40° to 343° C)

Turndown

  • Up to 1000: 1, 100: 1 Typical

  • Aluminum & Steel Production
  • Chemical Plants
  • Glass & Ceramics Production
  • Pulp & Paper Production
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