Clamp-on Ultrasonic Doppler Flow Meter (0.05 to 9 MPS)
The Dynasonics DFX doppler ultrasonic flow meters measure the flow of liquids that contain sound reflectors eg. suspended solids or gas bubbles which are greater than 35 microns insize. The DFX doppler ultrasonic flow meter software automatically adjusts filtering parameters and gain settings to ensure that reliable readings are guaranteed over a wide range of liquid and reflector conditions.
The Dynasonics DFX doppler ultrasonic flow meter is housed in a IP66/NEMA 4X enclosure and is configured by the user via the front panel buttons. A two ine backlit LCD display shows flow rate and accumulated flow values in user selected measuring units. Power supply options include AC or DC operation, and the output options include 4-20mA, flow rate pulse, and dual programmablerelay outputs.
Two sensor types are available with the DFX meter:
∴ Series DT9 clamp-on, non-intrusive sensor is recommended for use on most pipes, constructed from metal or plastic. The DT9 is rated to Type 6 (IP67) and has the ability to work with temperatures up to +200 ºC (+400 ºF).
∴ Series DP7 hot-tap insertion probe sensor is available for installations on pipe systems that do not permit ultrasound penetration. The DP7 inserts into the pipe wall and directly contacts the flowing liquid
⊃ Non-intrusive, clamp-on transducers for most pipes from (6 mm) and above.
⊃ Wide velocity range: 0.15 to 30 FPS (0.05 to 9 MPS).
⊃ Flexibility: with automatic gain control and in-field linearization,
the DFX will adapt to a wide variety of applications.
⊃ Inherent immunity to VFD and other electronic/ultrasonic noise.
⊃ Hot-tappable Insertion probe transducer available for concrete, FRP/GRP, or woodstave pipes.
⊃ Microprocessor-based system; configuration and accumulation
data stored in non-volatile flash ROM.
Insertion probe option
⊃ Minimal installation time: the DFX may be installed and fullyoperational within minutes.
⊃ For most homogeneous pipe materials, there is no need to break into pipelines.
⊃ Minimal material costs: clamp-on sensor eliminates the need for in-line flanges,
pipe fittings, strainers, or filters.
⊃ Reduced down-time: installation may be performed on full pipes and active systems
there is no need to shut the process down
for installation or maintenance.
⊃ Lower maintenance costs: with no moving parts, there is nothing
on the DFX to wear down.