The Microprecision Electronics MP300 switch series feature an attached floater actuator for easy liquid detection in industrial refrigeration and other process control applications. By adding a floating polypropylene ball mounted on a stainless steel level actuator to a switch from the V3 size MP300 switch series, Microprecision has designed a simple solution that accurately determines when a specified liquid level is reached. Once the switch is activated, the MP300 switch series can trigger a signal as an input for a PLC or directly switch power of up to 6 A.
The floating polypropylene ball has a 5 cm diameter, a working temperature of up to 99 °C — withstanding up to 121 °C for short periods of time — and good chemical resistance that makes it suitable for use in a wide variety of liquids, from oil to coolant. MP300 series switches are mounted outside the liquid contents but feature a sealed, IP67 design to resist challenging plant conditions and they can be wired as a changeover switch or with a simple NO or NC circuit.
The MP300 switch series can operate in temperatures up to 204 °C under EN61058 or 93 °C under UL 1054, depending on whether a PTFE, PUR, SI or PVC cable is used, and has a power rating of 250 VAC/6A under EN61058 and UL 1054. Plus, the floating ball and level actuator can be customised to meet specific user-defined sizes and lengths.
Phone: 03 9308 8344
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