Separate-amplifier type digital flow sensor

FD-V70 series

Catalogs View Catalog

Amplifier Unit, DIN Rail Mount Type, NPN FD-V70A

FD-V70A - Amplifier Unit, DIN Rail Mount Type, NPN

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

Data Sheet (PDF)


CAD Data

360°view (3D PDF)

  • CE Marking
  • UL Recognition(c/us)





DIN-rail mounting type

Current consumption


At 12 V: 1,500 mW (125 mA) or less, At 24 V: 2,000 mW (83 mA) or less*1

Eco mode

At 12 V: 1,320 mW (110 mA) or less, At 24 V: 1,700 mW (70 mA) or less*1

Display power

3 digit dual row 7-segment LED (character height: Upper characters; 8 mm 0.315", red. Lower characters; 5.7 mm 0.224", green)
Display refresh cycle: 5 times/second (10 times/second when response time is 0.5 seconds in the standard display mode)

Operation status indicators

Red LED x 3 (corresponding to control output 1, control output 2, and the abnormality alarm output)

Detecting area

FD-P05: 0.5 to 5 L/min、FD-P20/F20: 2 to 20 L/min、FD-P50/F50: 5 to 50 L/min
FD-P100: 10 to 100 L/min、FD-F04: 0.4 to 4 L/min

Display resolution

[Standard display mode or averaged display mode]
FD-P05/P100: 0.01 L, FD-P20/P50/P100/F20/F50: 0.1 L
[Averaged 2-digit displaymode]
FD-P05/P100: 0.1 L, FD-P20/P50/P100/F20/F50: 1 L



Response time (chatter prevention feature)

Selectable from 0.5, 1, 2, 5, 20 and 60

Accumulated flow unit

FD-P05/F04: 0.01, 0.1, 1, 10, 100 Selectable fromthe above
FD-P20/P50/P100/F20/F50: 0.1, 1, 10, 100, 1,000 Selectable from the above

Integration reset/bank input

Input time 20 ms or greater (Analog output/abnormality alarm output switchable)

Control output/integration pulse output

NPN open collector Max. 50 mA (40 V or less), Residual voltage 1 V or less, 2 outputs (N.O./N.C. switchable)

Abnormality alarm output

NPN open collector Max. 20 mA (27 V or less), Residual voltage 1 V or less, (ON at abnormality/analog output, integration reset, bank input switchable)

Analog output

4 to 20 mA Maximum load resistance 260 Ω
Analog output range can be set with the maximum 10 % step of F.S.


±0.5 % of F.S. or less (Fluid temperature 20 °C 68 °F at the ambient operating temperature of 25 °C 77 °F)


Power voltage

12 to 24 VDC, Ripple (P-P) 10 % or less

Environmental resistance

Ambient temperature

0 to +50 °C 32 to 122 °F (No freezing)

Relative humidity

35 to 85 % RH (No condensation)

Vibration resistance

10 to 55 Hz, Double amplitude 1.5 mm 0.06", 2 hours in each of the X, Y, and Z axis


Main body and cover: polycarbonate, Key top: silicon rubber


Power cable, mounting bracket, Instruction Manual


Approx. 85 g (including power cable)

*1 Excluding analog output current. Including head block.

Data Sheet (PDF) Other Models