Float Level Switch
A float level switch is one that operates using a magnet encased in a float.
When rising or falling liquid levels in a vessel cause this float to make contact
with a stationary reed switch, the switch closes and completes an electrical
circuit. Likewise, when the float moves away from the stationary stem, the
circuit reopens. This contact may be conditioned to activate alarms and controllers,
or to operate pumps that adjust the liquid levels in the vessel./p>
These switches may be used in a variety of industrial applications, including
clean or dirty liquids, water and wastewater, chemicals which are compatible
with PVC, sump pumps, and wells. Electrical interference does not affect float
level switches. Depending on their intended use, float level switches can be
constructed from materials that allow them to function in high-temperature
and high-pressure environments.
Float level switches offer simple and compact design, high reliability, and
low cost.