Programmable Pressure Sensor/Switch

Burkertype 8311 Pressure Sensor/Switch is designed to switch a valve, relay or pump and establish a simple ON/OFF control loop. The sensor may be used to energize a relay or provide transistor output (NPN or PNP) upon any pressure set point.

The device features +1% of full scale with 0.25% repeatability, and measures line pressure ranges up to 720 psig. It features a programmable set point which can be set locally with the three push buttons on the display, or externally from a PLC/computer over a 4-20mA loop.

Applications for the device include control of air or fluid pressures in tanks, the monitoring of flow pressures in water treatment systems, or control of tank level via hydrostatic head. Its plastic sensor/switch body has process connections of 1/2-inch NPT fittings. The inline technique provides for easy maintenance and change-out of the sensor without disrupting process flow. Wetted surfaces can be stainless steel, PFM or EPDM. Type 8311 gives superior long-term performance of 100 million switching cycles minimum.

The device facilitates Easy LINKTM construction of ON/OFF control systems using just the pressure sensor/switch and standard Burkert solenoid control valves. Electrical outputs are available as 5-30 VDC or 700 mA signals. Optional relay output is 3A 230 VAC or 3A 30 VDC programmable.

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