VSE VSI Pre-Amplifier Flow Meter

For precise and accurate flow and volume measurements with as high a resolution as possible, VSE has developed the optional VSI pre-amplifier


The integrated electronics of the VSI produces greatly improved signal quality with harmonic pulse widths. This means that more consistent and vibration-free measurements can be achieved. A switchable A/B-90° offset permits a direction change during commissioning. A separate direction signal also provides additional information for single channel evaluations, for example. Information can be read off quickly and easily using the LED status display. In addition, the interpolation factor has been increased by two IPF factors (24 and 32).

The replaceable system means that existing systems can be easily upgraded or expanded and standardised. An integrated embedded system permits greater flexibility, meaning that individual custom solutions can also be realised.




VSE Volumentechnik stands for high precision flow measurement technology. We develop and produce flow meters for virtually all pumpable media and the corresponding evaluation electronics. Since 1989 we have been part of the Echterhage Group.

Whether for water or highly viscous adhesive media with filler material, our in-house development and design department produces technically sophisticated flow sensors. The majority of our output is tailored to customer requirements, thereby putting handcraft back into industry. We can utilise modular systems that are adjusted in line with the technical specifications for each individual order. This means that product is carefully optimised for the needs of the customer.

VSE flow meters are used primarily where it is critical to have the most accurate measurements possible. Our flow measurement technology is used worldwide in high-tech processing plants in the plastics, polyurethane, chemical, pharmaceutical, paint and varnish, hydraulic and automobile industries, as well as in 2-component technology.


  • Greatly improved signal quality with harmonic pulse widths
  • More consistent and vibration-free measurements
  • Increase of the interpolation factor by two IPF factors (24 and 32)
  • Integrated Embedded System


  • Test benches for servo valves
  • Gearbox test benches
  • High precision leak measurements
  • High precision rapid controls


  • Flow range 0.002 to 525 l/min
  • Pressure range up to 450 bar
  • Temperature range -40 to +120°C
  • Frequency range up to 50 kHz
  • Viscosity range 1 to 1,000,000 cSt

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