Continuous Measurement with Float

What are the benefits of high-precision level measurement?

  • The simple and effective principle of operation is suitable for a very wide range of applications.
  • Continuous measurement of levels, independent of physical and chemical changes of the liquid such as foaming, conductivity, dielectric constant, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects, change„
  • Signal transmission over long distances
  • Simple installation and commissioning, onetime calibration only, no recalibration necessary
  • Interface measurement and overall level from Δ ≥ 50 kg/m³
  • Explosion versions
  • Functional safety IEC 61508/IEC 61511, SIL-2
  • Output signal: 4 … 20 mA, HART®
  • Measuring accuracy ≤ 1 mm

What are the benefits of level sensors?

  • The reliable and proven operation principle is suitable for a very wide range of applications
  • Continuous measurement of levels, independent of physical and chemical changes of the liquid such as foaming, conductivity, dielectric constant, pressure, vacuum, temperature, vapours, condensation, bubble formation, boiling effects, change
  • Signal transmission over long distances
  • Simple installation and commissioning, onetime calibration only, no recalibration necessary
  • Interface measurement and overall level from Δ ≥ 50 kg/m³
  • Explosion versions
  • Output signal 4 ... 20 mA, HART®, PROFIBUS® PA, FOUNDATION™ Fieldbus
  • Resolution ≥ 5 mm
  • Level displayed proportional to volume or height
  • In combination with limit switches, stepless setting of the limit values possible over the entire measuring range
  • High repeat accuracy of the set limit values
  • Cable and plug versions

What is a magnetostrictive level sensor used for?

These level sensors are used as measured value pick-ups for the continuous recording of levels, and are based on determining the position of a magnetic float according to the magnetostrictive principle.

How does a level sensor work?

These level sensors work on the float principle with magnetic transmission. The float's magnetic system actuates a resistance measuring chain that corresponds to a 3-wire potentiometer circuit in the guide tube.

How does a built-in magnetic system work?

A float with a built-in magnetic system moves with the level of the medium to be measured on a guide tube which has one or more reed switch contacts built into it. The magnet actuates the contacts at the pre-set switching heights and thus allows individual levels to be monitored. The simple and tried-and-trusted principle of operation is suitable for a very wide range of applications.

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