Microprecision Electronics

MP300 switch series
The MP300 switch series has an attached floating actuator that provides simple, cost-effective liquid detection in industrial refrigeration and other process-control applications. The floating polypropylene ball is mounted on a stainless-steel level actuator to determine when a specific liquid level is reached. Once activated, the unit triggers a signal that can be used as an input to a programmable logic controller (PLC). The 2-in.-dia. ball has a working temperature up to 210ºF, and can withstand up to 250ºF for short periods. The switches are mounted outside the vessel so they are not in contact with the process liquid, and feature a sealed IP67 design to resist challenging plant conditions. The floating ball and level actuator can be customized to meet a customer’s size and length specifications.