Low Flow Transmitter for tubes and pipes 6 to 10mm

  • Flow transmitter for low level flow
  • 6 to 10mm tubing
  • 0.01 to 10L/min
  • Combine with temperature switch
  • No moving parts
  • Low pressure loss
  • Calorimetric sensor fast response
  • Simultaneous Flow and temperature
  • Temperature compensated
  • PDF

The FLEX-FIN flow sensor monitors fluid media. Its compact form combines the measurement tube and converter / counter which, depending on the model, trigger an adjustable limit value with transistor output or an analog output (4..20 mA or 0..10 V) or both. In addition, the limit switch can alternatively be replaced by a frequency output or a Pulse output. The converter / counter record two process parameters: the flow speed of the medium and its temperature. Both parameters can be assigned to the analog output or to the switching output.


Sensor Calormetric measurement
Nominal tube size DN6..10
Process Connection smooth tube for crimp connector or hose
Metering Ranges 6 mm tube: (0.001) 0.01..2 l/min
8 mm tube: 0.025..5 l/min
10 mm tube: 0.05..10 l/min
Special ranges available on request
Measurement Accuracy ±3 % F.S. (H2O dist.)
Repeatability ±1 % of the measured value (H2O dist.)
Temperature Gradient 4 K/s
Pressure Resistance PN 10Bar
Medium Temperature 0..+70 °C (-20..+100 °C available on request)
Operating Temperature -20..+70 °C (electronics)
Storage Temperature -20..+80 °C
Pressure Loss max. 0.3 bar at max. flow
Supply Voltage 24 V DC ±10 %
Current Consumption max. 100 mA
Switching Output transistor output "push-pull"
(resistant to short circuits and polarity
Iout = 100 mA max.
Switching Hysteresis flow 1 % of full scale value
Temperature: approx. 1 °C
Pulse Output pulse width 50 ms
→ max. output frequency < 20 Hz
Display (only with switching Output yellow LED
(On = Normal / Off = Alarm /
rapid flashing = Programming)
Adjustment by means of magnet
Analog Output 4..20 mA / Load 500 Ohm max.
or 0..10 V / Load min. 1 kOhm
Ingress Protection IP65
Electrical Connection for round plug connector M12x1, 4-pole
Materials - medium contact stainless steel 1.4571 optional: hastelloy® C-276
Materials - non medium contact PPS, PA6.6, CW614N
Weight Approx 0.2 g
Conformity CE mark

Ordering information

Model Description US $
Flex Finn Call or use the inquiry form to request help with configuration and a quotation. See the PDF manual for detailed options and part number configurator.