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Turbine flow sensor Type VTM15

 

Product description

Possible areas of application Turbine flow sensor Type VTM 15 M

The VTM15 are sensors for liquid flow measurement in solar heating plants. With compact dimensions and high measurement accuracy, they offer, compared to conventional water meters, convincing advantages:

  • A temperature sensor can be integrated into the turbine body saving additional installation costs
  • The maximum medium temperature of 120 °C offers sufficient safety and reliability for all operating conditions.

 

Description

Measuring principle
The liquid flowing into the turbine flow sensor is split into individual jets by the guiding blade. These jets hit the rotor evenly from different directions, 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.
 

Technical features

Technical features

For medium temperature up to 120 °C
Material pipe section Brass
Measurement range 2...20 l/min
Accuracy ±0.4 l/min
Reproducibility ±0.1 l/min
Medium temperature

Max. 120 °C

Pressure rating PN 10
Nominal diameter DN 15
Process connection G¾ male incl. union nuts
Sensor Hall effect sensor
Pulse Output 915 pulses/litre
Electrical connection 1.5 m PVC cable, screened (Tmax = 80 °C)

Power supply

4.5...24 VDC
Degree of protection IP54

 

Options

  • Integrated temperature sensor:
    Pt100 / 3-wire or Pt1000 / 2-wire
    1.5 m PVC cable, screened (Tmax = 80 °C)

 

 

Further details and accessories can be found in the datasheet.

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