conductive level switch / for liquids / multi-point / stainless steel
NES

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Characteristics

  • Technology:

    conductive

  • Medium:

    for liquids

  • Other characteristics:

    multi-point, stainless steel, threaded

  • Process pressure:

    Max.: 30 bar (435.11 psi)

    Min.: 0 bar (0 psi)

  • Process temperature:

    Max.: 150 °C (302 °F)

    Min.: 0 °C (32 °F)

Description

The NES model is a conductive-type level monitor for gauging the level or controlling the pumping of conductive fluids. The principle of operation is thus: on application of a low AC voltage across the container wall and switching point, both of which are conductive, current starts flowing when a conductive fluid fills the gap. This current can be made to operate a relay which is in turn connected to a monitor or pump controller, based on the requirement. Thus, for minimum- and maximum-level control, two switching points and two relays are required, and for multiple-level signaling multiple switching points and relays are required. The lack of any moving parts makes it a preferred choice for use with conductive fluids with high viscosity, very low density, or solid precipitates. Either NE-104 or NE-304 (equivalent to 2 NE-104) relays can be used.

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