Bypass level indicators form an integral part of the pressure vessel. Via two process connections a standpipe ( bypass ) is mounted
to the side of a tank or vessel. Due to the direct connection the filling level in the bypass will always correspond
exactly to the filling level in the vessel ( communicating pipes ).
In the bypassing pipe a cylindrical float with a built-in magnetic system is contained. The concentrated magnetic field of the permanent magnet
corresponds exactly to the filling level of the liquid in the bypass. In a contactless way the magnetic field transmits itself through
the wall of the standpipe onto externally mounted displaying, recording and switching elements.