Flocorp UltraFlo™ UFDD Digital Doppler Clamp-On Flow Meter is the ideal flow meter with accurate, easy-to-use, easy-to-install digital doppler technology. The UltraFlo™ UFDD is offered in a portable flow meter design or permanent mount installation. Both are extremely rugged, reliable and durable. The flow meters are housed in a NEMA 4X fully sealed enclosure to withstand the most severe conditions.

The patented Digital Doppler technology will measure just about any liquid or fluid from potable water to 30% thickened sludge and fly ash slurries. The easy to read LCD alpha-numeric display, versatile AC & DC power operation, digital communications, batch control and data log events are all packaged in an affordable industrial design.

Because the UltraFlo™ UFDD sensors are clamped onto the outside of the pipe, the installation costs are a fraction of installed costs of traditional in-line flow meters. Plus, the sensors and electronics are immune to the process conditions regardless of process pressures, temperatures and build-up or scaling conditions. The Digital Doppler transducers will mount to just about any size pipe regardless of pipe wall thickness.

Flocorp UltraFlo™ UFDD Features and Benefits

  • AC or DC operation, isolated, regulated,
  • Smart LCD screen featuring high-resolution, 32 character, 2-line alphanumeric providing rate and totalization simultaneously – in Metric & English
  • Splash proof NEMA 4X case protected from moister and caustic
  • Easy configuration for setup and operation with on-screen prompting, quick scrolling menus, display panel keypad, and color coded LED’s.
  • Non-invasive, submersible, clamp-on transducers
  • Standard transducers fit pipe sizes 3/4” and larger pipe O.
  • RS232 Data Transfer Via DB9 Port or USB Terminal
  • Batch Control – Scalable Pulse 12 VDC Nominal Isolated @
  • Internal 12 VDC battery (Solar Panel optional).
  • Portable & Fixed models available (Provided in NEMA 4X enclosures).
  • Data Logger 2-32 Gb Flash Drive with cable and software (optional).
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Power Nominal 150mA 220/117 VAC/12 VDC Dimensions Portable: 19 x 15 x 7

Fixed: 10 x 8 x 6



4-20mA (Max. z 1000 ohm) Digital Pulse Train (0-12V), Hi & Lo limit Alarms, RS232 & Batch Control
Weight Portable: 15 Lbs.

Fixed: 6 Lbs.


LED Indicators

Green – Power Yellow – Echo

Red – Hi/Low Alarm

Flow Range (velocity) Volume Determined by Pipe ID  

0.50 to 50.0 feet per second



NEMA – 4X hinged (+4° F to +140° F)
Accuracy +/- 1 %
Particle Limitations Min: 35 ppm ; Max: 30% sludge
Transducer Submersible – Potted, PVDF (-70° F to +300° F)
Max. Pressure Based on Pipe Specification
Max. Temperature 300ºF Totalizer 12 digit LCD

Lifetime Memory Backup.

Pipe ID Range ½¨- 999¨ Doppler
Rate Meter 4 digit LCD Digital Bar Graph
Standard Transducers Fit pipe sizes 3/4″ and larger pipe O.D.
Linearity +/- 0.5 % Cable Length 0 to 5000 ft.

25 ft standard

Repeatability +/- 0.1 %
Engineering Units English & Metric