DFM 5.0 Doppler Flow Meter0 pages

Simple, Non-Contacting Flow Meter
for Accurate Flow Measurement from Outside a Pipe

Doppler Flow Meter
Model DFM 5.0
Displays, Transmits,
Totalizes and Controls
User-Friendly Calibration
Password Protected
Isolated 4-20mA Output
2 Control Relays
Digital Signal Processing
Optional Intrinsic Safety
Non-Contacting Flow Monitoring and Control
Ultrasonic Sensor mounts on any Pipe
Ideal for “Problem Liquids”

Greyline Doppler Flow Meters 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.

External Sensor
No Contact, No Maintenance

The DFM 5.0 strap-on sensor is mounted on the outside of a plastic
or metal pipe ½ inch / 12.7 mm diameter or larger. To measure flow
an acoustic signal is reflected back to the sensor from moving
particles or gas bubbles suspended in the fluid.
Installation is easy - without shutting down the flow system. No
contact is made with the moving fluid and no pipe cutting or drilling
is required. There is no fouling or scale build-up on the sensor.
The DFM 5.0 Doppler Flow Meter 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.