Liquid Level Switches

Single Stage Liquid Level Switches are designed to shut down machinery or turn on warning  devices when the liquid supply fails or recedes to a predetermined level.  This is especially important in automated plants which demand bearing protection to safeguard against downtime and costly repairs.  The units are ideal for monitoring the oil level in unattended automated plants, large bearings, gear cases, transformers, circuit breakers, oil tanks, and cutting oil reservoirs on screw machines, along with many other applications.  They can be wired to flash a warning light, sound a howler, shut down a machine, or signal a computer.  The switch with a clear acrylic reservoir is used for remote indication of low liquid levels.  The tip outlet can be piped directly into  the reservoir, or it can be vented to the outside for use on applications with atmospheric pressure.   The switch less reservoir is designed for internal use on open or pressure tanks.  Simplicity makes  these switches reliable in operation.  When the liquid in the reservoir recedes to the low level, a  magnet carried inside of the float actuates a reed switch within the central pipe.  The magnetic reed  switch is single pole-single throw and is intended for pilot control only.  It is potted into an auxiliary  tube with silicone rubber for protection against shock and moisture.  This reed switch assembly  is screwed into the lower end of the liquid control switch and can be removed without draining the float chamber.  An Oil-Rite relay is recommended.