HFT 2100 for Oils / Viscous Fluids


The HFT 2100 series of HYDAC flow transmitters is based on the variable area float principle. Irrespective of the installation position, the test medium deflects a spring-loaded float in the direction of flow, depending on the flow rate.

A Hall sensor which detects the position of the float is fitted to the outside of the instrument and is, therefore, separate to the flow circuit. In proportion to the deflection of the float, the sensor produces an analogue signal which corresponds to the particular measuring range.

The device is calibrated for vertical installation and for an upwards flow direction. The transmitter is designed to give reliable measurements within its accuracy range, even with changes in viscosity. The kinematic viscosity may vary between 30 and 600 cSt.

The areas of application include:

  • Central lubrication systems
  • Oil circuit lubrication systems
  • Transformers
  • Cooling systems and circuits
  • Lubrication circuits
  • Hydraulic systems
  • Pumps
  • Welding machines and laser systems
  • Chemical industry
  • Research & development


  • Oils / viscous fluids


  • Accuracy ≤ ± 10 % FS
  • Viscosity compensation from 30 .. 600 cSt
  • Any mounting position
  • High level of functional reliability
  • High-pressure resistance
  • Threaded connection


Contact us for more information on this product

HYDAC Australia

HYDAC New Zealand

AUSTRALIA 1300 449 322

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