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Portable Doppler Ultrasonic Flow meters


Item# FD613-S1

Please contact Technical Sales Team for assistance.
Portable Doppler Ultrasonic Flow meters FD613-S1 FD613-S1

This product is no longer available and is being replaced by our FDT-25.

  • 100 PPM OF 100 Microns in Size Paticulate or Bubbles Required
  • Battery Operated
  • Non-Invasive Clamp-On Transducer
  • Large Character Display

FD613-S1 Model Options

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Velocity Range
Pipe Diameter Range
Media Type
Form Factor
Max Process Temperature
Supply Power

  • Accuracy Value ±2% full scale
  • Battery Type Alkaline
  • Battery Life 30 hours of continuous operation
  • Display Digit Height 18 mm
  • Enclosure Material NEMA 12X ABS plastic
  • Maximum Ambient Humidity 95% RH non condensing
  • Measurement Type Flow
  • Maximum Ambient Temperature 82 {C} (180 {F})
  • Media Type Liquid Flow Rate
  • Minimum Ambient Temperature -20 {C} (-28 {F})
  • Minimum Ambient Humidity 0% RH
  • Number of Batteries 4
  • Number of Display Digits 4
  • Power Source Battery
The FD613 Series ultrasonic flow meter features advanced Trans-Phase measuring technology, providing accurate and reliable flow velocity assessments in closed full pipe systems. The FD613 utilizes a non- invasive clamp-on transducer which is placed on the outside of a pipe. Within seconds, the large 18 mm (0.7") LCD provides stable flowrate readings in feet (or meters) per second. This product operates on metal or plastic pipes containing liquids with more than 100 ppm of 100 micron or larger suspended solids or entrained gases.

The FD613 Series flowmeter utilizes an advanced Trans-Phase measuring technique, providing accurate, non-invasive fluid velocity assessment without opening the pipe. The FD613 Series utilizes two piezoelectric crystals contained within one transducer to transmit ultrasonic energy into the fluid stream and receive back energy reflected off discontinuities (suspended particles or entrained gases) within the moving liquid. Transformations that result from the energy reflections are processed and converted to a measurement of fluid velocity by the sophisticated software algorithm. The processor also controls all operations of the instrument from its ultra-efficient battery management circuitry to a proprietary FIR (Finite Impulse Response) filtration program.

Supply Voltage: Battery powered, non-rechargeable alkaline, four AA cells, providing over 30 hours of continuous operation
Flow Range: 0.30 to 30.00 FPS (0.10 to 9.00 MPS)
Display: Single line – four-digit LCD readout of velocity (18 mm (0.7") digits), signal strength, measuring units, and low battery indication
Temperature: -20 to 60°C (-28 to 140°F)
Enclosure Rating/Dimensions: NEMA-12X ABS plastic; 200 H x 100 W x 38 mm H (7.76 x 4 x 1.5")
Weight: 0.7 kg (1.5 lb)
Accuracy: ±2% full scale
Transducer Material: Plated body; ULTEM 1000 sensor material
Cable: 2 m (6.6 ft) cable and connector
Temperature: -40 to 82°C (-40 to 180°F)
Humidity: 0 to 95% non-condensing
Mounting Method: Clamp-on style with DOW 111 coupling compound
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It's not clearly stated so I'm asking, the FD613 product does not include the transducers? And those transducers are products FD613-S1 and FD613-S2?

Asked by: Brockwood95
Thanks for your question. Yes,the transducers are sold separately. Part numbers are FD613-S1 and FD613-S2 depending the pipe size.
Answered by: ASE HPO
Date published: 2020-01-14
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