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Requires a sensor purchased separately. Find transducer options under the accessories tab or call 1-800-884-4967 to discuss.


  • 0 to ±32m/s (0 to ±105ft/s) flow velocity range
  • 0.5 to 236 inch pipe diameter range
  • -40 to 392°F (-40 to 200°C) fluid temp
  • ±1% accuracy
  • 1 second response time
  • USB port serial communication
  • Datalogging via SD memory card
  • Heat quantity measurement function
  • Digital signal processing
    • Improves anti-bubble characteristics
  • Sound velocity measuring function
    • Eliminates temperature and pressure errors
    • Enables easy setup for unknown materials
  • Compact and light-weight (just 2.3 lbs)
  • 4.7 inch color graphic display
  • 12 hour battery life

The Fuji Electric Portaflow-C Ultrasonic Flow Meter is a compact and light-weight flow meter, offering high performance and easy operation for the noninvasive measurement of flow rates in pipes.

Utilizing the latest electronics and digital signal processing technologies, the Portaflow-C offers high accuracy, quick response time, and outstanding anti-bubble characteristics. In addition to standard flow measurements, the Portaflow-C is capable of heat quantity measurement allowing simple management for heating and cooling applications.

The Portaflow can be used with various types of detectors applicable for small to large diameter pipe and low to high temperature. This flow meter is designed for 12 hours of continuous operation with its own built-in battery which is rechargeable in 3 hours with the supplied power adapter. An SD memory card allows flow, velocity and total data to be stored for later recall. A universal USB port permits communication with a PC to facilitate configuring the Portaflow-C as well as saving and reading data files, and a 4.7 inch color graphic display creates an easy-to-use operator interface.

The Portaflow-C applications include:

  • Flow measurement systems
  • Backup for an already installed flow meter system
  • Water supply and sewage treatment
  • Boiler-water / feed-water supplies
  • Cooling water or oil
  • Deionized water for semiconductor manufacturing

Transit Time Ultrasonic Flow Meters – Technology Explained

Transit Time ultrasonic flow meters are well-suited for relatively clean fluids with low to moderate aeration. These meters operate by comparing the time for an ultrasonic signal to travel with the flow (downstream) against the time for an ultrasonic signal to travel against the flow (upstream). The difference between these transit times is proportional to the flow, and the flow meter converts this information to flow rate and total. With this technology, the transducers are mounted on the outside of the pipe, providing tremendous advantages over more traditional and invasive flow measurement instruments such as magmeters, vortex meters, and turbine flow meters. These benefits include no system downtime for installation, no system contamination, no pressure drop, no moving parts, and no risk of leaks. This product is virtually maintenance free.

Required Transducers
At least one transducer is required for this product
Fuji Electric FSSD Transducer
0.5 to 4 inch pipes; -40 to 212°F; 2MHz
In Stock
Fuji Electric FSSC Transducer
2 to 48 inch pipes; -40 to 248°F; 1 MHz
In Stock
Fuji Electric FSSE Transducer
8 to 235 inch pipes; -40 to 175°F; 0.5MHz
In Stock
Fuji Electric FSSH Transducer
2 to 16 inch pipes; -40 to 390°F; 2MHz
In Stock
Fuji Electric Sensor Cables
Pair of 16 foot cables with Lemo connectors on one end and BNC male connectors on the other
In Stock
Carrying cases, spare cases
Pelican Cases
Watertight, crushproof and dustproof cases for the ultimate in protection
Starting at
Please consider these optional accessories.
Fuji Electric Thermal Printer
Print flow rate readings and and other data from the Fuji Electric Portaflow-C ultrasonic flow meter
Fuji Electric Thermal Printer Paper Roll
In Stock
Fuji Electric FSC Battery Pair
One pair of replacement batteries for Fuji's Portaflow-C ultrasonic flow meter
Sonic Coupling Compound
Acoustic couplant gel for use up to 400°F
In Stock
NIST-Traceable Calibration with Calibration Certificate
5-Point NIST-Traceable Calibration for Fuji Electric ultrasonic flow meters
FS-200 Ultrasonic Thickness Gauge
Hand-held ultrasonic pipe thickness meter with 5 MHz transducer
FSC-BTU-KIT BTU Metering Kit
Energy meter kit for measurement applications based on flow and temperature differential, used with Portaflow ultrasonic flow meters
Starting at
In Stock