A PVDF turbine with PTFE axis rotates proportionally to the fluid speed.
The fluid is injected through an injector of various diameters to allow different ranges.
Permanent magnets are inserted in the turbine to actuate a Hall Effect sensor.
A frequency-squared signal is proportional to the fluid speed and to the real flow rate.

Designed for low flow rates, the FFG flow metre is reliable in all industries for neutral or very aggressive liquids.
The FFG accepts no crystallizing fluids and without particles. It is better to install a filter before the flow metre.

Range: 6 to 720 L/h (water at 20°C), depending of nozzle diameter

Accuracy:
± 1% full scale for 1:10 ratio range
± 2% full scale for 1:25 ratio range

Repeatability: > 0.25 %
Temperature: Ambient 0 ... +40°C
Pressure: vs. temperature, see the drawing
Viscosity: 0.2 to 20 cSt
Housing: PVDF, Polysulfon or Arnite (PBT)
Turbine: PVDF
Nozzle: PTFE
Turbine axis: PCTFE
O-ring: FPM
Power input: 5 to 24 V DC
Consomption: 5 to 13 mA as a maximum
Output signal: NPN collector – Signal load, max. 20 mA
Connection: IP65, DIN 43650 connector

Cable:
3 x 0.75 mm² shielded - max. length: 100 meters
3 x 0.75 mm² without shield - max. length: 30 meters

Process connection: BSP 1/4"
Weight: 185 g