Compact vertical liquid level sensors

The VCS series of point liquid level switches demonstrates a high
degree of reliability due to the use of non-reactive wetted
components and a unique reed switch designed specifically for
level sensing applications. The sensor utilizes a moving float with
an embedded magnet to activate a reed switch located in the
sensor stem. As the liquid level passes the sensor, the float
moves up or down on the stem giving a normally closed or
normally open switch indication.

The reliability of this sensor results from a very simple operating
principle, a single moving part, media compatible wetted materials,
and a unique reed switch design that has a UL recognized
component certification.

The sensor mounts into the top or bottom of a liquid storage tank
from the inside (internal fitting) using either a 1/8” NPT or M8 x
1.25 threaded fitting. The output is a simple N.O. or N.C. SPST
reed switch that utilizes Ruthenium contact points for reliability.
Changing from a N.O contact to a N.C. output is done by removing
the float, inverting it and re-attaching. This change can be done in
the field. Electrical outputs are a single pair of wires with PVC
insulation and optional lengths of 100 mm or 600 mm.