Turbine flow sensors


The turbine flow sensors are sensors for flow measurement or dosing applications for liquids. Because of the very compact design, the very wide measuring range and the convincing precision of measurements, almost unlimited applications are possible.

Measuring principle

The liquid flowing into the turbine flow sensor is split into individual jets by the flow straightener. These jets hit the rotor evenly, setting the rotor in motion. The rotation speed of the rotor is then converted to an electrical pulse signal (frequency): The rotor is fitted with magnets and a Hall effect sensor detects the rotation of the rotor.
A flow-proportional frequency signal (square-wave signal) is made available.
Given the uniform inflow to the bearing, the forces largely cancel themselves out and wear is reduced to a minimum. The extremely hard bearing materials - sapphire and hard metal - also guarantee an exceptionally long endurance.

Benefits

  • Low wear and extremely long durability due to high quality bearing
  • Practically no deviation in mass production due to fixed pulse rate
  • Insensitive against water hammers
  • Proven in numerous mass production applications
  • High measuring accuracy, mostly independent of fitting position due to integrated flow straightener

 

Turbine flow sensor for potable water applications series VTY10 brass threaded

Measurement range 1...30 l/min
Accuracy ±1 % of range
Signal output From 0.7 l/min
Nominal diameter DN 10
Pressure rating PN 16
Medium temperature 0...90 °C (non-freezing), temporary 95 °C
Ambient temperature 0...70 °C
Process connection G½ male
Output signal Square wave frequency signal, NPN open collector
Pulse rate / K-factor 495 pulses/l
Electrical connection PVC-cable, double insulated (1 m), optional single wire
Power supply 4.5...24 VDC

 

Turbine flow sensor for potable water applications series VTY10 plastic threaded

 

Measurement range 1...30 l/min
Accuracy ±1 % of range
Signal output From 0.6 l/min
Nominal diameter DN 10
Pressure rating PN 10
Medium temperature 0...70 °C (non-freezing), temporary 95 °C
Ambient temperature 0...70 °C
Process connection G¾ male
Output signal Square wave frequency signal, NPN open collector
Pulse rate / K-factor 530 pulses/l
Electrical connection PVC-cable, double insulated (1 m), optional single wire
Power supply 4.5...24 VDC

** NEW ** Turbine flow sensor for potable water applications series VTY15 brass threaded

Turbine flow sensors of the series VTY were specially developed for the use in potable water mass production applications.
Sensors of the series VTY are used among others for the measurement of tap water.

Technical features

 
Measurement range 1...45 l/min
Accuracy
±(1 % of range + 0,5 % of reading)
Signal output From 0.8 l/min
Nominal diameter DN 15
Pressure rating PN 16
Medium temperature 0...90 °C (non-freezing), temporary 95 °C
Ambient temperature 0...70 °C
Process connection G¾ male
Output signal Square wave frequency signal, NPN open collector
Pulse rate / K-factor 234 pulses/l
Electrical connection PVC-cable, double insulated (0.5 m), optional single wire with Molex Mini-Fit® plug
Power supply 4.5...24 VDC

 

Turbine flow sensor for potable water applications series VTY20 brass threaded

Measurement range 1...60 l/min
Accuracy ±1 % of range ±1 % of reading
Signal output From 0.8 l/min
Nominal diameter DN 20
Pressure rating PN 16
Medium temperature 0...90 °C
Ambient temperature 0...70 °C
Process connection G1 male thread
Output signal Square wave - frequency signal, NPN open collector
Pulse rate / K-factor 119 pulses/l
Electrical connection
 
80 mm single wire with Molex Mini-Fit® Jr. plug
optional: 0.5 m PVC cable
Power supply 4.5...24 VDC
Pressure drop 0.33 bar (at Q = 60 l/min)

 

Turbine flow sensor for industrial applications series VTY20 stainless steel threaded

Measurement range 1...60 l/min
Accuracy ±1 % of range ±1 % of reading
Signal output From 0.8 l/min
Nominal diameter DN 20
Pressure rating PN 16
Medium temperature 0...90 °C (non freezing)
Ambient temperature 0...70 °C
Process connection G1 male thread
Output signal Square wave - frequency signal, NPN open collector
Pulse rate / K-factor 122 pulses/l
Electrical connection
 
80 mm single wire with Molex Mini-Fit® Jr. plug
optional: 0.5 m PVC cable
Power supply 4.5...24 VDC
Pressure drop 0.33 bar (at Q = 60 l/min)

 

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