Thermal Mass Flow Meter suits gas monitoring applications.

Press Release Summary:

Suitable for applications monitoring natural gas, air, and digester gas, Model FT1 utilizes DDC-Sensor™ consisting of direct digitally controlled sensor technology for calculating accurate gas correlations. Correlation algorithms allow meter to be calibrated on single gas in factory while providing user ability to select other gases in Gas-SelectX™ gas menu. With Zero CAL-CHECK™ feature, users can confirm that meter is functioning properly and accurately with push of button.

Original Press Release:

Fox Thermal Instruments Launches New Product

MARINA, Calif. — Fox Thermal Instruments announced today the launch of their new product:  the Fox Model FT1 Thermal Mass Flow Meter.

Fox Thermal Instruments has expanded its product line with the addition of the FT1 Thermal Mass Flow Meter. The FT1 is a high-end flow meter, and it features a robust design. Among its advanced features are:

• DDC-Sensor™ - Advanced Direct Digitally Controlled sensor technology

• Gas-SelectX™ - Onboard gas selection menu

• Zero CAL-CHECK™ - In Situ Calibration Validation Routine

• RS485 Modbus RTU or BACnet MS/TP - Optional Communication Protocols

• Standard USB Port – Gain Direct Meter-to-PC Connections

• FT1 View™  - Software for configuring, graphing and logging data

The FT1 was designed to be used in the most common gas monitoring applications. It is ideal for applications monitoring natural gas, air, and digester gas.  In addition, with its rugged-design, the FT1 is ideal for heavy industrial applications in HVAC, paper, glass and ceramics.

The DDC-Sensor provides a technology platform for calculating accurate gas correlations.   The FT1 correlation algorithms allow the meter to be calibrated on a single gas in the factory while providing the user the ability to select other gases in the Gas-SelectX™ gas menu. Current available gases include Air, Argon, Carbon Dioxide, Methane, Natural Gas, Nitrogen, and Methane/Carbon Dioxide/Nitrogen Mixes.

The FT1’s Zero CAL-CHECK™ feature allows users to confirm that the meter is functioning properly and accurately -- with just a simple push of a button. 

Other FT1 features:

• One standard 4 to 20mA output for flow or temperature

• A second output selectable for either:

- Pulse output (pulses per unit/units per pulse); or

- RS485 Modbus RTU; or

- BACnet MS/TP

FT1 View™ software allows easy adjustments to the meter configuration, evaluation of alarm conditions, collection of process data, and measurement viewing from your PC or control station.  Moreover, this software can be used to initiate Zero CAL-CHECK™ -- and it automatically logs the results of each Zero CAL-CHECK ™ test.  If any regulatory submission is required, the software will generate a certificate for easy recordkeeping.

A USB connection port comes standard on the new Model FT1 which allows quick and easy access with a laptop.


Founded in 1994, Fox Thermal Instruments provides a broad range of reliable, accurate and full-featured flow meters to industrial OEMs and end-user customers. The Fox management group has decades of experience in thermal flow design, application and manufacturing techniques. Our outstanding team of mechanical, electronic and software designers have helped shape the thermal mass flow measurement industry and continue to leverage new materials and technologies to improve instrument functionality, accuracy and reliability. More information on Fox Thermal Instruments can be found at

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