Greyline DFM

Non-intrusive ultrasonic flowmeter for wastewater
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  • Monitor the flow rate of dirty or aerated liquids including wastewater, chemicals, acids, slurries, abrasives and viscous liquids.
  • Recommended for full pipes and any fluid that contains solids or bubbles.
  • Installation is easy – without shutting down the flow system. The strap-on sensor is mounted on the outside of a plastic or metal pipe ½ inch / 12.7 mm diameter or larger. No contact is made with the moving fluid and no pipe cutting or drilling is required.
  • To measure flow an acoustic signal is reflected back to the sensor from moving particles or gas bubbles suspended in the fluid.
  • There is no fouling or scale build-up on the sensor.
  • Includes an ultrasonic sensor, a simple 5-key calibration system, a large digital flow rate display with totalizer, isolated 4-20mA output, and two programmable control relays.
  • Data logger and intrinsically safe sensor are optional.

Codes and references



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