CLAMP-ON DOPPLER – FLOW METER
CLAMP-ON ULTRASONIC FLOW METER FOR LIQUIDS WITH BUBBLES, SOLIDS OR SLURRIES
Greyline’s clamp-on ultrasonic flow meters are ideal for measuring flow of liquids containing bubbles, suspended solids or slurries and other “difficult” liquids.
Greyline’s Doppler ultrasonic flow meters are ideal for difficult liquids in filled pipes. Applications include Raw Sewage, Aerated Water, Return & Waste Sludge, Slurries, Viscous Liquids, Pulp Stock, Abrasives.
The single Doppler sensor is strapped on to the outside of the pipe and does not come into contact with the fluid at all.
The Greyline DFM is suitable for pipes from 12.7 mm to 4,500 mm in diameter and flow velocities from 0.08 to 12.2m/sec. Accuracy is typically ± 2%. For best operation the liquid should have solids or bubbles with a minimum size of 100 microns and minimum solids concentration of 75ppm. The DFM has a 128MB data logger capable of capturing 26 million data points. Optional MODBUS RTU via RS485 is available for connection to automation systems.
The Greyline Doppler ultrasonic flow meter is available in a portable format (PDFM) and also a fixed format (DFM) for permanent applications.
Advantages of Clamp-on, Non-contact Flow Meters
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How it works



Greyline Ultrasonic Clamp-on flow meter for difficult flow applications |
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Greyline Portable Ultrasonic Doppler Flow Meter |
PDFM |
Greyline Fixed Doppler Flow Meter |
DFM |