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Fox Model FT3 Gas Mass Flow Meter and Temperature Transmitter

 

Fox FT3 Inline & Insertion Flowmeters

The Fox Model FT3 Thermal Gas Mass Flow Meter and Temperature Transmitter measures two important process variables in one rugged instrument.

The Model FT3 measures gas flow rate in standard units without the need for temperature and pressure compensation.

Calibration Validation, using the CAL-V™ and Zero CAL-CHECK features, is an in-situ calibration routine that validates the flow meter's accuracy by testing the functionality of the sensor and it associated signal processing circuitry.

A free software tool – FT3 View™ - is available for the Model FT3.

Read more in the FT3 Brochure.

   

FT3 Insertion Flowmeter Configuration Tool

FT3 Inline Flowmeter Configuration Tool
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  • Features/Benefits

  • Specs

  • Approvals

  • Applications/Gases

  • Downloads

  • Dimensions

  • Awards

Common Features for Inline and Insertion Fox Model FT3 Flow Meter:

  • Measures process gas flow rate/total and temperature
 
  • 4 to 20 mA output proportional to mass flow rate
  • A USB connection is standard (free FT3 View™ Software); Optional HART and RS485 Modbus communication protocols
  • Click the Approvals tab for Model FT3 Agency Approvals.
  • Optional on-board display and configuration panel
  • Calibration Validation with the CAL-V™ and Zero CAL-CHECK™ features.
  • Equipped with the Power Pro™ thermal mass flow sensor
  • NIST-traceable calibration
  • Wide measurement range
  • One discrete output is programmable for either frequency (represents flow rate) or alarm
  • 1% R + 0.2% FS flow accuracy
  • One discrete input to reset total or select a different calibration on 2 gas curves
  • 24 VDC or optional 100 to 240VAC in local or remote enclosures

Technical Specifications

Fox Model FT3 Thermal Mass Flow Meter & Temperature Transmitter

Performance Specs

Type
Insertion
Inline
Flow Accuracy:
± 1% of reading ± 0.2% of full scale.
15 diameters of straight, unobstructed pipe upstream and 10 downstream.
± 1% of reading ± 0.2% of full scale.
8 diameters of straight, unobstructed pipe upstream and 4 downstream.
Flow Repeatability:
± 0.2% of full scale
Flow Response Time:
0.9 seconds (one time constant)
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 minimum.
Calibration:
Factory Calibration to NIST-traceable standards
CAL-V™ and Zero CAL-CHECK™: In situ, operator-initiated calibration validation

Operating Specs

Type
Insertion
Inline
Flow Units (field selectable):
SCFM, SCFH, NMPS, NM3/M, NM3/H, NM3/D, NLPS, NLPM, NLPH, MCFD,
MSCFD, SCFD, MMSCFD, MMSCFM, SMPS, SM3/H, LB/S, LB/M, LB/H, LB/D,
KG/S, KG/M, KG/H, SLPM, SFPM, MT/H, SM3/M
Flow Rates:
15 to 60,000 SFPM (0.07 to 280 NMPS) - Air at 70°F (20°C) & 1 ATM
Turndown:
up to 1000:1; 100:1 typical
Flow Ranges:
Pipe Size
SCFM
NM³/HR
 
Pipe Size
SCFM
NM³/HR
1.5” (40mm)
0 - 840
0 - 1,320
0.25”
0 - 20
0 - 32
2” (50mm)
0 - 1,400
0 - 2,200
0.5”
0 - 90
0 - 140
3” (80mm)
0 - 3,080
0 - 4,860
0.75”
0 - 180
0 - 280
4” (100mm)
0 - 5,300
0 - 8,360
1”
0 - 320
0 - 500
6” (150mm)
0 - 12,000
0 - 18,900
1.25”
0 - 580
0 - 910
8” (200mm)
0 - 20,800
0 - 32,800
1.5”
0 - 840
0 - 1,320
12” (300mm)
0 - 46,600
0 - 73,500
2”
0 - 1,400
0 - 2,200
 
2.5”
0 - 2,000
0 - 3,150
3”
0 - 3,080
0 - 4,860
4”
0 - 5,300
0 - 8,360
6”
0 - 12,000
0 - 18,900

Note:  Standard conditions of air at 70°F and one atmosphere. Consult factory for other
gases, pipe sizes and for flow ranges other than those listed.

Gas Pressure (max):
500 psig (34.5 barg)
NPT (0.25” - 6”):
500 psig (34.5 barg)
150# flange:
230 psig (16 barg)
Check with factory for higher pressure options.
Note: Pressure ratings stated for temperature of 100°F (38°C).
Relative Humidity:
90% RH maximum; non-condensing
Temperature by Sensor Type (see Approvals tab):
ST sensor: -40 to 250°F (-40 to 121°C)
HT Sensor: 32 to 650°F (0 to 343°C)
Temperature by Enclosure (see Approvals tab):
Without display or AC power supply: -40 to 158°F (-40 to 70°C)
With display and/or AC power supply: -4 to 158°F, (-20 to 70°C)
Remote sensor junction box: -40 to 158°F (-40 to 70°C)
Input Power:
  • 24 VDC, ± 10%, 0.75 amp standard; 85 to 264 VAC 47-63Hz, 20 watts optional.
  • 24VDC, (±10%), 0.7 Amps (standard DC Power) 100 to 240VAC ~ (+10%-15%), 50-60Hz, 0.2 Amps (with AC power option).

Note: Fluctuations of AC and DC power supply are not to exceed ±10% of rating.
Class I Equipment (Electrical Grounding Required for Safety).
Installation (Over-voltage) Category II for trnasient over-voltages.

Inputs/Outputs:
  • All outputs and communication circuits are galvanically isolated.
  • 4 to 20mA output one is proportional to the measured flow rate.
  • Fault indication per NAMUR NE43.
  • 4 to 20mA output two is programmable for temperature or flow rate.
  • Digital output one is programmable for either frequency or alarm output.
  • Output is open collector type, operating voltage 5V to 24V, maximum sinking current: 10mA.
  • The frequency ouput is proportional to flow rate with a range of 0 to 100Hz.
  • When configured for alarm, the digital output generates an on or off signal.
  • Remote switch input can be configured to reset elapsed time, flow totalizer and switch between gas curves when the 2 gas curve option is ordered.
Port:
USB communication port is standard.
Software:
The free PC-based software tool - FT3 View™ - provides complete configuration, remote process monitoring, and data logging functions.
Optional serial communication:
HART and RS485 Modbus.
4 to 20mA Loop Verification:
Simulation mode used to align 4 to 20mA output with the input to customer’s PLC/DCS.

Physical Specs

Type
Insertion
Inline
Sensor Material:
316 stainless steel standard; Hastelloy C276 optional
Enclosure:
NEMA 4X (IP68), Aluminum, dual conduit entries with ¾” NPT or optional M20 x 1.5mm.
Cabling to remote enclosure: 5-conductor, 18 AWG, twisted, shielded, 100 feet maximum.
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.
Installation:
Fox-supplied compression fitting connects to customer-supplied 3/4” female coupling welded to pipe.
 

FT3 Approvals

CE: Approved
EMC Directive; 2004/108/EC
Emissions and Immunity Testing: EN61326-1:2008

FM and FMc: Approved
Class I, Div. 1, Gps B, C, D; Class II, Div. 1, Gps E, F, G; Class III, Div. 1;
T3C, Ta = -40°C to 70°C; Class I, Zone 1, AEx/Ex d IIB+H2 (T6, T4, or
T1*); Ta = -20°C to 70°C; Type 4X, IP67

ATEX (FM12ATEX0034X): Approved
II 2 G Ex d IIB+H2 (T6, T4, or T1*) Gb Ta = -20°C to 70°C; IP67
II 2 D Ex tb IIIC (T85°C, T135°C, or T450°C*) Db Ta = -20°C to 70°C; IP67

IECEx (IECEx FMG 12.0010X): Approved
Ex d IIB+H2 (T6, T4, or T1*) Gb Ta = -20°C to 70°C; IP67
Ex tb IIIC (T85°C or T135°C*) Db Ta = -20°C to 70°C; IP67**

ATEX and IECEx Standards:
EN 60079-0: 2009 IEC 60079-0: 2011
EN 60079-1: 2007 IEC 60079-1: 2007
EN 60079-31: 2009 IEC 60079-31: 2008
EN 60529: 1991, +A1: 2000 IEC 60529: 2001

Model Code

 

Temperature Code Marking

(Gas)

 

Temperature Code Marking

(Dust)

Enclosure
Sensor Type
Main Enclosure
Remote Enclosure
Main Enclosure
Remote Enclosure**

E1

ST
T4
N/A
135°C
N/A

E2

ST
T6
N/A
135°C
N/A

E3

ST
T6
T4
85°C
135°C**

E4

ST
T4
T4
85°C
135°C**

E3

HT
T6
T1
85°C
450°C**

E4

HT
T6
T1
85°C
450°C**

*Temperature code ratings for Zones are dependent on external process temperature factors
and equipment enclosure configuration. See the table above for specific temperature code ratings.
**The IECEx dust rating does not apply to the Remote Enclosure.

Applications

Typical Gas Calibrations

  • Natural Gas Flowmeters
  • Air
  • Air Flowmeters
  • Ammonia
  • Compressed Air Flowmeters
  • Argon
  • Emissions Monitoring
  • Biogas
  • Environmental Monitoring
  • Butane
  • Flare Gas Flowmeters
  • Carbon Dioxide
  • Vent Gas Flowmeters
  • Carbon Monoxide
  • Flash Gas Flowmeters
  • Compressed Air
  • Biogas Flowmeters
  • Digester Gas
  • Digester Gas Flowmeters
  • Ethane
  • Landfill Gas Flowmeters
  • Flare Gas
  • Waste Water Gas Flowmeters
  • Flash Gas
  • Coal Methane Recovery Flowmeters
  • Helium
  • Energy Accounting
  • Hydrogen
  • Combustion Process Optimization
  • Methane
  • Other Mixed or Pure Gas Flowmeters
  • Mixed Gases
 
  • Natural Gas
 
  • Nitrogen
 
  • Oxygen
 
  • Propane
 
  • Vent Gas
 
  • Other Gases

Additional Model FT3 Information to View and/or Download

Model FT3 Datasheet
     
Model FT3 Datasheet (Spanish)
     
FT3 Features
     
FT3 Application Datasheet
   
FT3 Display Configuration Codes
     
FT3 Model Codes
     
FT3 Instruction Manual
     
All FT3 Dimensional Drawings
     
FT3 HART Manual
     
FT3 Modbus Manual
     
FT3 Data Logger Datasheet
     
FT3 Troubleshooting Guide
     
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View Dimensional Drawings for Fox Model FT3 Insertion by clicking the PDF links below:

   
FT3 Insertion Models
Local electronics, probe without retractor
FT3 Local Insertion Flow Meter With a Probe
Local electronics, probe with retractor
FT3  Local Insertion Flow Meter With a Retractor
Remote electronics, probe without retractor
FT3 Remote Insertion Flow Meter With Probe
Remote electronics, probe with retractor
FT3 Remote Insertion Flow Meter With Retractor
 

View Dimensional Drawings for Fox Model FT3 Inline by clicking the PDF links below:

 
FT3 Inline Models
Local electronics, NPT end connections
FT3 Local Inline Flow Meter With NPT end Flow Conditioners
Local electronics, 150# flange end connections
FT3 Local Inline Flow Meter with 150# Flanged Flow Conditioners
Remote electronics, NPT end connections
FT3 Remote Inline Flow Meter With NPT end flow conditioners
Remote electronics, 150# flange end connections
FT3 Remote Inline Flow Meter With 150# Flanged flow conditioners
 

View Dimensional Drawings for Fox Model FT3 Retractors by clicking the PDF link below:

 
Retractors
Crank Retractor (model codes R1 - R5)
FT3 Flow Meter Remote Mounting Kit
Crank Retractor (model codes R6 - R9)
FT3 Flow Meter Remote Mounting Kit
 

View Dimensional Drawings for Fox Model FT3 Remote Mounting Kit by clicking the PDF link below:

 
FT3 Remote Mounting Kit
Remote Mounting Kit
FT3 Flow Meter Remote Mounting Kit

Winner of Flow Control's 2013 Innovation Award

2013 Flow Control Award

The votes are in!  The Fox Model FT3 Thermal Mass Flowmeter and Temperature Transmitter has won the Flow Control 2013 Innovation Awards.  The innovative Calibration Validation feature, using the CAL-V and Zero CAL-CHECK tests, has paved the way for this advanced meter to garner the votes necessary to win this honor.  Fox is very pleased and would like to thank all who have voted for this outstanding product. Read the Digital Issue of Flow Control's Announcement...

Winner of Processing’s Breakthrough Products of the Year Award

Processing Mag Logo

Processing Magazine has awarded Fox Thermal Instruments’ Model FT3 Thermal Mass Flowmeter & Temperature Transmitter the Breakthrough Products of the Year award for 2012.  These awards recognize products, technologies and services that made significant contributions in the process industries within the last year and are expected to impact the industry for years to come.  Read the article describing Calibration Validation feature of the Model FT3.

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Your choice of measurement units

SCFM SFPM SMPS KG/S LB/S
SCFH SLPM NMPS KG/M LB/M
SCFD MCFD NM3/M KG/H LB/H
SM3/M MSCFD NM3/H NLPS LB/D
SM3/H MMSCFD NM3/D NLPM  
SM3/D MMSCFM MT/H NLPH  
         
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Contact Fox Sales to check compatibility with your application and get more information on options/product configuration.

 

Click Here for a list of the most Frequently Asked Questions.

 

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