Tank level sensor has sensor unit arranged in sensor housing, float arm rotatable around rotation axis and magnet fastened to float arm, where magnet and float arm are mechanically decoupled by spring element in direction of rotation axis

摘要

The tank level sensor (1) has a sensor unit (4) arranged in a sensor housing (3), a float arm (6) rotatable around a rotation axis (5) and a magnet (7) fastened to the float arm. The magnet is magnetically coupled with a coupling element (8) of the sensor unit, where the coupling element is arranged within the sensor housing. The magnet and the float arm are mechanically decoupled by a spring element (13) in the direction of the rotation axis of the float arm. The spring element is made of metal or plastic.