Greyline Instruments PSL Data sheet

Automatic Pump Station

Hybrid

Level Controller

with Non-Contacting Ultrasonic Sensor

PSL 5.0

Pump Station

Level Controller

6 Control Relays

Programmable Pump Alternation

Relay Run Time Reports
Redundant Sensor Input

Isolated 4-20mA Output

Large Backlit Display

New and

Improved!

Pump Station Level Control, Monitoring and Reporting

Ideal for Level Control

No contact, No maintenance

New Dual-Technology

Sensor Feature

Redundant Level Sensing

Designed for pump stations, wet wells and tank level control the new
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.

Mount the non-contacting, ultrasonic sensor in the tank or wet well and
install the watertight electronics in the control room or any location within
500 ft / 150 m. Use the simple menu system and built-in keypad to set up
measurement range, relay set points and pump alternation sequence. A
relay/pump run time report is updated and stored automatically for viewing
on the instrument’s backlit LCD display.

Connect a submersible pressure sensor or other 4-20mA level transmitter
to the PSL 5.0 for fail-safe hybrid sensing. The PSL 5.0 will auto-calibrate
the redundant sensor and if signal is lost to the ultrasonic sensor, the
redundant sensor will seamlessly take over monitoring until signal
resumes from the ultrasonic. The redundant sensor is continuously
monitored to ensure availability during primary sensor failure.

RELIABLE MEASUREMENT AND CONTROL

www.greyline.com

–

Specify Greyline PSL 5.0 for Pump Stations

or Tank Level Control

Easy to Install with Non-Contacting Sensor

The PSL 5.0 Pump Station Level Controller is designed for Pump Station and Tank Level Control applications. Mount the
non-contacting ultrasonic sensor above the well or at the top of a tank. Use the built-in keypad to calibrate measurement
span, relay set-points, pump alternation sequence and level alarms. Assign the six built-in control relays for ON/OFF
pump control, Hi or Lo level alarms, autodialer activation, air temperature alarm or sensor echo loss alarm. Connect the
isolated 4-20mA output to your SCADA system, PLC's or recorders.

Animated Icons Indicate Active Sensors

Non-Contacting
Ultrasonic Sensor

Redundant
Submerged
Pressure Sensor

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.

An animated icon on the PSL 5.0 digital display indicates that the ultrasonic sensor is active. The icon indicates if the
system automatically switches to the redundant sensor.

Calibration of the Redundant Sensor is Totally Automatic

You can use hydrostatic pressure sensors, radar, or any 4-20mA transmitter for redundant level sensing. The PSL 5.0
automatically scales and calibrates the redundant sensor during each pump cycle. Once the PSL has operated through at
least one pump cycle, the redundant sensor will be calibrated and ready to function.

PSL 5.0 Pump Station Level Controller

þ

Non-Contacting Ultrasonic Sensor

Accepts Pressure Sensor Input for Redundant Monitoring

þ

6 Control Relays with Programmable Pump Alternation

þ

Automatically Logs and Reports Relay Run Times for Pump

þ

Performance Evaluation

Plug and Play Optional Data Logger

þ

Isolated 4-20mA Output

þ