Float switches

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.

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