Greyline PSL 5.0 Ultrasonic Level Controller

PSL 5.0

Automatic, hybrid pump station level controller with a non-contacting, ultrasonic sensor.

  • Isolated 4-20mA Output (1000 ohm)
  • Programmable Signal Relay
  • Non-Contacting Ultrasonic Sensor or Optional Pressure Sensor
  • Built-in 2-Key Calibrator
  • Watertight, Dust-tight Enclosure



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Product Details

Greyline PSL 5.0 Ultrasonic Level Controller

Designed for pump stations, wet wells, and tank level control – the Greyline PSL 5.0 Pump Station Level Controller has six independently programmable control relays for pump or valve control, level alarms, autodialers, temperature, or fault alarms.

Easy Installation

The Greyline PSL 5.0 Pump Station Level Controller is designed for pump station and tank level control applications with the noncontacting sensors mounting just above the well or at the top of a tank. Calibration is simple and easy, use the built-in keypad to calibrate Greyline measurement span, relay set points, pump alternation sequence, and level alarms.

Redundant Sensor Level Control

The PSL 5.0 sets a new level of reliability. It operates with an ultrasonic level transducer as its primary sensor but also accepts connections from 4-20mA level sensors for redundancy. If the ultrasonic transducer loses signal from foam on the water surface, for example, the redundant sensor will take over reading instantly. As soon as the ultrasonic sensor receives new echoes, it will resume function as the primary sensor.


  • Pump Stations
  • Tank Level Control

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