LS-7 Series Level Sensor: Operating Principle

Depending on the mounting position, the float on these switches can either rise or lower with the liquid level. By rotating the switch 180°, the switch operation can be Normally Open or Normally Closed. Arrows on exterior of mounting indicate N.O. when pointing up.

When the switch is mounted so that the float lowers with the liquid level, the switch is N.O.

When the switch is mounted so that the float rises with the liquid level, the switch is N.C.

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