DFX Doppler Ultrasonic

The DFX ultrasonic Doppler flow meter measures flows of liquids containing suspended particles or aerated liquids. The suspended particles must reflect ultrasonic energy. The DFX flow meter operates by transmitting ultrasonic waves into the flow stream and measuring the frequency shift of the reflected wave. The meter’s clamp-on design allows quick and low-cost installation, and eliminates worries of fluid compatibility and pressure head loss. With no moving parts, there is no mechanical wear, so repair kits or replacement parts are not needed.


  • Minimal installation time
  • Minimal material costs
  • Reduced down-time
  • Lower maintenance costs


  • Measures liquids containing suspended reflectors
  • Non-intrusive, clamp-on transducers for most pipes
  • Wide velocity range
  • Flexibility: with automatic gain control and in-field linearization, adapts to a wide variety of applications


  • Size: 1/4…120 in.
  • Temperature Range: -40…400 °F
  • Flow Range: 0.15…30 ft/sec
  • Pressure Range:  DT9 per pipe specification PSI
  • Accuracy: (full scale) ±2 %

More Information

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