LW87 Magnetic Float Liquid Level Switch gives alarm signal on the appointed liquid level on the

side wall of open or pressurized vessel basing on float theory.

LW87C is a horizontal installed float liquid level switch,fixing on the side wall of vessels with the float fixed inside the vessel and the switches and transducer component are totally isolated. When the liquid level reaches the assigned point, the position change of the float will activate the switch by magnetic system and output signals. This switch suits to single level control.

LW87D is a vertical installed float level switch and fixed on the top of the vessel. The float is inside the vessel .Switch is isolated with the transducers. The float is fixed on non magnetic transmitting pipe run, the magnetic system inside the float will urge the switch to output signal. This switch could control many level points.

Measurement Princple:

LW87 Magnetic Float Liquid Level Switch used to monitor the appointed liquid level in open or

pressurized vessel according to float theory and fixed on the side wall of the vessel,the position of the float fixed on the stem will change with the liquid level. When the liquid level reaches appointed level (float is at a certain horizontal status or angle), the float will drive the magnetic system to activate the switch to output signal.

The position of the float is basing on the change of the liquid level; the action of the switch is made according to magnetic transmission system. The switch housing is well isolated from the inside of the vessel.