Products

Nivelco NIVOPOINT Magnetic Level Switch

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

 

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Description

NIVOPOINTmagnetic float level switches are suitable for level detection, level switching, and one- or multipoint level controlling tasks in normal as well as in hazardous areas. The device consists of a probe tube, a float incorporating a magnet, and a housing containing the connection terminals. A maximum of 5 switches can be incorporated in the probe. A sliding sleeve on the top of the probe provides for a simultaneous ±25 mm adjustment possibility of the positioning of the switches. The wetted parts of the level switch are made of stainless steel. The plastic-coated versions are suitable for level detecting of aggressive liquids, and the ATEX certified versions are applicable for level switching of explosive materials. Floats and process connections can be selected according to the measured medium and the application. The mini type NIVOPOINT magnetic float level switches are suitable for maximum level indication in small tanks. The small size and easy mounting of the switch allow maximum level detection in appliances or tanks using process connections made for different other purposes.

OPERATION

NIVOPOINTmagnetic float level switches work on the basis of the interaction of the built-in magnet in the float and the reed switches in the probe. The float of NIVOPOINTlevel switch devices moves alongside the probe tube tracking the level of the measured liquid and activating the reed switches.When the float moves ahead the reed switches, it changes the default state (NO or NC) of the reed switches, which stay in a self-holding state with the help of opposite polarized magnets next to the reed switches. When the liquid level decreases, the float moves ahead of the reed switches again, breaks off the self-holding state, and restores the previous state of the reed switches. The mini type NIVOPOINTlevel switches do not contain biasing magnets. By tracking the level, the magnetic float activates the reed switch in the probe. The reed switch opens or closes according to the position of the magnetic float. The default state is meant with bottom positioned float, the normally opened or closed state of the reed switch can be changed by the inversion of the float.