Fox FT3 Thermal Gas Flow Meter

Fox FT3 Thermal Gas Flow Meter

The Fox Model FT3, a multiple award-winning thermal gas mass flow meter manufactured in the United States by Fox Thermal Instruments.The Model FT3 was designed with our oil and gas customers in mind. This meter is Quad O (OOOO) compliant and is perfect for use in flare gas applications along with other fuel gas measurement.

The Model FT3 measures gas flow rate in standard units (SCFM, NM³/hr, LBS/HR, KG/HR & many more) without the need for temperature and pressure compensation.

FT3 View™ - a free software tool –- allows the user to connect to and configure the FT3 using USB to a PC or laptop.


Measures process gas flow rate/total and temperature

A USB connection is standard (free FT3 View™ Software); Optional HART and RS485 Modbus communication protocols

Optional 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 flows) or alarms

One discrete input to reset total or select a different calibration on 2 gas curves

4 to 20 mA output proportional to mass flow rate

Calibration Validation with the CAL-V™ and Zero CAL-CHECK® features.

NIST-traceable calibration

Wide measurement range

1% R + 0.2% FS flow accuracy

24 VDC or optional 100 to 240VAC in local or remote enclosures,

Performance Specs

Flow Accuracy: ± 1% of reading ± 0.2% of full scale.

± 1% of reading ± 0.2% of full scale.

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.

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