Portable ultrasonic flowmeter PORTAFLOW-C

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Portable ultrasonic flowmeter Portaflow-C

This ultrasonic portable flowmeter consists of two sensors clamped on the pipe (DN 13 to 6000 mm, according to sensors) and of a digital converter operating on internal battery or on power line.


  • It can measure bi-directional flow speeds from -32 to +32 m/s.
  • Powerful and user-friendly tool that is very appreciated by anyone wishing to make a point measure of flow in the field : large color LCD graphic display, a set of drop-down menus and a reduced number of keys make this unit a simple.

Easy Measurement Anytime and Anywhere

  • Sensors are external mounted which allows easy installation without cutting the pipe nor the flow rate
  • 12 hours of continuous operation via built-in battery
  • Supplied with its carrying case converter, sensors and all cables and accessories
  • Graphic printer connection for on-site printing of measured data, or bmp file

portaflow C mounting



Consumed energy calculation

consumed energy calculationA function to obtain thermal energies exchanged via fluid used in air-conditioning systems. The transmitter calculates the consumed thermal energy based on the forward flow temperature, the return flow temperature, and the flow rate.



Simple and user-friendly interface

  • Data in SD card (instantaneous values, integrated values) can be transmitted to PC via USB cable
  • Flow velocity profile visualization
  • Memory storage 1 to 20 configurations
  • Consumed heat quantity computation





FluidsUniform liquid in which ultrasonic waves can propagate (Water, hot-water, distilled water, alcohol,milk, ethanol, etc.)
Inner pipe diameter13mm to 6000mm (depending on the detector)
Fluid temperature-40 to +200°C (depending on the detector)
Flow velocity range0 to ±32m/s (±0.3m/s min.)
±1.0% of rate(depending on the flow velocity)
Response time1 second
PathTransit time method (1 Path)
DisplayColor graphic LCD with back light
Analog output signal4–20 mA DC (1 point)
Analog input signal4–20 mA DC/1–5 V DC (2 points)
Supply voltageBuilt-in battery (In the fully charged condition, 12 hours of continuous operation is possible.)
Size210 × 120 × 65 mm
WeightApprox. 1kg
SD memory cardIt can be saved almost a year date by attached date standards (512MB)
Serial communicationTransmission data (data stored in a SD memory card such as instantaneous value, total value, etc)
USB port is used
Transmission distance: 3 m max.
FonctionsDamping time constant variable within 0 to 100 sec
Instantaneous value display (10 digits) Various flow rate unit settable
Total value display (10 digits) Various flow rate unit settable
Consumed heat quantity computation
Self diagnosis (diagnoses battery voltage drop and received waveform from the sensor)
Flash memory (measurement parameter for pipe, fluid, sensor, etc)
A number of registered sites: 32
Zero point adjustment (Set zero/Clear available)
Bi-directional flow measurement
Low flow cut (0 to 5m/s)
OptionsWith printer: Display hard copy, periodic printing and logged data printing
Flow velocity profile (Pulse Doppler method): Displays flow velocity profile of instantaneous value and average value


Portable ultrasonic flowmeter PORTAFLOW-C documentation