Pulsar Measurement – DFM 6.1 – Clamp-On Ultrasonic Doppler Flow Meter for Full Pipes & Difficult Liquids

The DFM 6.1 Doppler Flow Meter is a non-contacting, clamp-on flow meter that uses Doppler technology for effective pipe flow measurement. It is suitable for liquids with suspended solids like wastewater, slurries, and chemicals. The meter is easy to install without interrupting the flow system and offers features such as a digital flow rate display, data logger, and control relays. It can measure flow in either direction and is ideal for controlling flow within a process or testing existing equipment for accurate flow measurement. Visit the Downloads tab for case studies on its applications.

  • Clamp-on Doppler ultrasonic flow meter for dirty or aerated liquids
  • Suitable for wastewater, chemicals, acids, slurries, abrasives, and viscous liquids
  • Sensor mounts externally on plastic or metal pipes 12.7mm (0.5in) or larger
  • Designed for full pipes containing solids or bubbles
  • Optional Modbus RTU or HART output
Minimum Pipe Size12.7mm (0.5in)
TechnologyDoppler ultrasonic
ApplicationDirty/aerated liquids
OutputsOptional Modbus RTU / HART

What liquids is the DFM 6.1 designed for?

Dirty or aerated liquids like wastewater, slurries, chemicals, and abrasives.

How is the sensor mounted?

Externally, clamped onto plastic or metal pipes 12.7mm or larger — no cutting into the pipe required.

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