Metering, Integration, Analytics
Metering, Integration, Analytics
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Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series
Keyence Clamp-On Liquid Flow Meter FD-R Series

Keyence Liquid Ultrasonic Flow Meter FD-R Series (FD-H32, FD-R50, FD-R80, FD-R125, FD-R-200)

$1,200.00 - $4,500.00
KEYENCE's FD-R Series Clamp-on Ultrasonic Liquid (Water) Flow Meter (sensor) is designed for pipes as large as 8". Installation is easy and requires only a screwdriver. The device can be mounted to a variety of materials including stainless steel, iron, copper, PVC, and resin. Both flow and temperature monitoring is possible for a wide variety of liquids—from water (including pure water) to oil, chemicals, and high-pressure liquids—at temperatures between -4°F and +248°F. 

The device does not come into contact with the liquid, so there is no risk of liquid-based corrosion or degradation, reducing maintenance time and costs. The rugged metal construction includes an easy-to-read indicator light, and data can be recorded directly on the device. The IP69K enclosure rating and NEMA4X compliance make this sensor both highly reliable and convenient for indoor and outdoor use.

Mounting and Integration

  • Clamp-On the Outside of a Pipe
  • No Pipe Modification (Non-Invasive)
  • No Downtime for hot-tap insertion installations or inline metering installations
  • Easily Secure with 4 or 6 Screws
  • Bracket Ensures Correct Mounting by Anyone

Highly Versatile Water metering for Any Situation

  • Measure Water, DI Water, Oils, Chemicals, Product, etc.
  • External pipe mount to Stainless, Iron, Copper, PVC, Resin, etc.
  • Precise Monitoring with Accuracy of ±2.0% of RD
  • Integrated Temperature Monitoring
  • AC/DC Compatibility

Significant Reduction in Installation Time and Costs

  • No loss of production during Installation through non-invasive installation
  • No Special Knowledge, Tools, or Contractors Needed
  • No Risk of Contamination, Leaks, or Pressure Loss
  • Install in Minutes with a Standard Screwdriver
  • Built-In Predictive Maintenance




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Product Details

Supported pipe materials

Metal / resin*1

Supported fluids

Various liquids (i.e. water, oils, chemicals)*1

Supported fluid temperature

- 20 to + 120°C - 4.0 to + 248 °F (no freezing on the pipe surface)*2

Maximum rated flow

Rated flow velocity range: 5.0 m/s
Flow rate range (Typical):
1 1/2" (40 A): 400 L / min 100 gal / min 24 m3/ h)
2" (50 A): 600 L / min 150 gal / min 36 m3 / h

Rated flow velocity range: 5.0 m/s
Flow rate range (Typical):
2 1/2" (65 A): 1000 L/min 260 gal/min 60 m3/ h)
3" (80 A): 1500 L/min 390 gal/min 90 m3 / h

Rated flow velocity range: 5.0 m/s
Flow rate range (Typical):
4"(100 A): 2500 L/min 660 gal/min 150 m3 /h
5" (125 A): 3700 L/min 990 gal/min 220 m3/h)

Rated flow velocity range: 5.0 m/s
Flow rate range (Typical):
6" (150 A): 5500 L/min 1400 gal/min 330 m3 /h
8"(200 A): 9500 L/min 2500 gal/min 570 m3 /h

Zero cut flow rate

Zero cut: 0.3 m/s (default)*3
Flow rate (Typical): 36 L / min 9 gal / min 2.4 m3 / h

Zero cut: 0.3 m/s (default)*3
Flow rate (Typical): 90 L / min 24 gal / min 5.4 m3/h

Zero cut: 0.3 m/s (default)*3
Flow rate (Typical): 220 L / min 60 gal / min 12 m3/h

Zero cut: 0.3 m/s (default)*3
Flow rate (Typical): 570 L / min 150 gal / min 36 m3 / h

Display method

Dual row, 5-digit display with white, 14-segment LED; Large status indicator; Output indicators; Stability indicator; Unit indicator

Display update cycle

Approx. 3 Hz

Display resolution

0.1 / 1 (L / min)

1 (L / min)

Response time

0.5 s / 1.0 s / 2.5 s / 5.0 s / 10.0 s / 30.0 s / 60.0 s / 120.0 s / 200.0 s (variable)

Measurement accuracy

Between 20 and 100% of F.S. : ±2.0% of RD*4*5
Between 6 and 20% of F.S. : ±0.4% of F.S. *4*5

Protection circuit

Power supply reverse connection protection, Power supply surge protection, Short-circuit protection for each output, Surge protection for each output

Zero point error

±0.5% of F.S.*4*6

Hysteresis

Variable

Flow units

L / min, m3 / h, gal / min

Integrated flow unit display

1 / 10 / 100 / 1000 / 10000 (L)

Pipe temperature measurement accuracy

±3°C ±5.4°F (liquid temperature of - 20 to + 50°C, - 4 to + 122°F)
±5°C ±9°F (liquid temperature of 50 to + 120°C, 122 to 248°F)
(ambient operating temperature of 25°C 77°F)*4

Wiring specifications

Power supply

DC power supply: M12 4-pin connector / AC power supply: M4 screw terminal block (selectable)

I/O

When using a DC power supply: M12 4-pin connector / when using an AC power supply: M3 screw terminal block

Input/Output (Selectable)

Output (ch.1/ch.2)

Control output / Integrated pulse output / Error output / Temperature alarm, NPN / PNP setting switchable,open collector output 30 VDC or less, max. 100 mA / ch., residual voltage: 2.5 V or less*7

Analog output (ch.1/ch.2)

Flow rate analog output / Temperature analog output and 4 - 20 mA / 0 - 20 mA (selectable), load resistance: 500 Ω or less*7

External input (ch.2)

Integrated flow reset input / Flow rate zero input / Origin adjustment input (selectable), short-circuit current: 1.5 mA or less, input time: 20 ms or more*7

Rating

Power voltage

20 to 30 VDC including 10% ripple (P-P), Class 2 / 100 to 240 VAC - 15% or + 10% (50 / 60 Hz)

Current consumption

When using a DC power supply: 200 mA or less (load current excluded), 400 mA or less (load current included) When using an AC power supply: 15 VA or less

Environmental resistance

Enclosure rating

IP65 / 67 (IEC60259), IP69K (ISO20653), Enclosure Type 4X (NEMA250)

Ambient temperature

- 20 to + 60°C - 4.0 to 140 °F (no freezing)*2

Relative humidity

5 to 90%RH (no condensation)

Vibration resistance

10 to 55 Hz, compound amplitude 1.5 mm 0.06", XYZ axes 2 hours for each axis

Shock resistance

100 m/s2 , 16 ms pulse, XYZ axes, 1000 times for each axis

Dimensions

Main unit size: 218.5 mm × 66.9 mm × 70.7 mm 8.60" × 2.63" × 2.78"

Material

Main unit

Body: aluminum die-casting + coating / PPS, display: reinforced glass, connectors: SUS304-equivalent

Unit rear

Rubber

Upper/lower bracket

SUS304

Weight

Main unit: Approx. 1.0 kg
Upper/lower bracket: Approx.1.5 kg (including sub unit)

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