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Ultrasonic Doppler clamp-on flow monitor/switch

  • Small size for simple installation
  • Suitable for dirty and turbulent liquids
  • Manual programming
  • No complicated process connections
  • Robust stainless steel construction
  • Low purchasing costs
  • Simple operation
  • Available in clamp-on or portable
UFM-10 ultrasonic doppler flowmeter

The recently revised UFM-10 is a simple ultrasonic clamp-on flow monitor and switch. It is used to monitor the flow of liquids containing a high level of solids or enclosed gas bubbles on applications where a general flow indication is sufficient.

Measurement technology
The UFM-10 uses an alternative ultrasonic measurement principle to the KATflow clamp-on flow meter range and therefore requires different application conditions. Applying a new measurement system called the Refracted Spread Spectrum Analysis technique, the UFM-10 requires liquids, which contain entrained solids, gases or turbulence in order to provide a measurement.

Applications and configuration
The accuracy of this device is less than for the KATflow ultrasonic clamp-on flow meters, however, the UFM-10 is ideal for pump protection or overflow applications. The unit is very easy to install with minimum configuration required. The UFM-10 provides both analogue and alarm outputs on the standard model and achieves an uncertainty of less than 10%.



  • Aerated liquids
  • Ash slurries
  • Paint
  • Paper stock
  • Activated sludge