Immersion probes TSR EEx

Magnetically operated automatic liquid level controls

Magnetically operated automatic liquid level controls

Construction and operating principle of TSR immersion probes

The TSR immersion probes have a probe tube with built-in reed contacts. The float is fitted with a permanent ring magnet and moves freely up and down the probe tube, activating the reed contacts as it rises and falls. It should be noted that reed contacts do not lock but that they switch only for as long as they are influenced by the magnetic field. Once the float passes beyond a contact upwards or downwards, the latter returns to its original position. However, the contacts can be made to hold by using collars to limit the motion of the float.