Working principle
The measuring system is based on the capacitive measuring
method. The measuring probe and the tank wall or the se
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cond electrode respectively form the plates of a capacitor,
the medium in the tank is the dielectric fluid. The capacity
depends on the medium. The more the medium touches the
measuring probe, the higher the capacity. This change is de
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tected by the plug-in evaluation module and transformed in a
percentage display or a 4 -20 mA signa