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Contact

Float Level
Magnetic Tracking

Single point as well as multi point float level switches use hermetically sealed reed contacts that are actuated by a magnet in the rising or descending float. As the float rises and falls, the magnetic field causes the switch inside the stem to open or close.

These switches are available as single or in multi float configurations for a multiple alarm setpoints activation. Switches can be supplied as normally open as well as normally closed and are typically used for pump control.

Features

Liquids with min. 0.5 kg/dm3 or 0.8 kg/dm3 density
Multi-point level switch in closed tanks
Chemicals with dense vapour or gas layer above the surface
Foaming liquids

Benefits

Operation without power supply
Reed switches separated from process
Wetted parts stainless steel or plastic
Up to 5 switch points
Vertical adjustability of all switch points
Various process connections
Explosion-proof models

Short Description	Magnetic float level switch without external power supply
Operating Principle	The magnet in the float operates the reed relays in the probe tube
Mounting, Adjustment	Top of the tank
Setting of the switching point(s)	Max. 5 switching points at distances as ordered
Material of wetted parts	Stainless steel. PVDF float and PFA coated probe tube; Housing material: Alu cast
Ex version	Available
Special applications, advantages	Max 5 switching points with one instrument, Limit switch, high or low fail-safe switching
Suggested applications	Limit switch, high or low fail-safe switching
Measurable mediums	Liquids with min 0.5 kg/dm3 density. Foaming, steaming, high pressure liquids; Chemicals, solvents, hydrocarbons
Ambient Temperature	-20 to 95 C
Medium Temperature	-20 to 150 C
Process Pressure	Max 25 bar
Output	250 V AC, 3 A
Process Connection	1
Ingress Protection	IP65
Ex approval	Ex II 2 G EEx d IIC T3 to T6