New
Dual-Technology Feature - Redundant Level Sensor Input
6 Relays for Pump
Control, Pump Alternation and Level Alarms
Isolated 4-20mA output
Built-in 5-Key
Calibrator
Logs and Displays Relay
Run Times
New Pump and Lift Station Level Controller
Ideal for sewage pump stations, lift
stations, wet
wells and tank level control with a non-contacting ultrasonic
sensor mounted above the liquid. The new Greyline PSL 5.0 Level
Controller has 6 independently programmable control relays
for pump or valve control, level alarms, dialers, temperature
alarm and echo-loss alarm.
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 PSL 5.0 backlit LCD display.
For hazardous locations, the
ultrasonic sensor is rated Intrinsically Safe with an
optional safety barrier. It is rated for measurement ranges up to 32 ft / 10 m,
or use the optional PVC Sensor rated for 50 ft / 15.6 m
measurement range.
New
Dual-Technology Sensor Feature for Redundant Level Monitoring
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.
Hybrid PSL 5.0 Solves Echo Loss Callouts
Sewage lift stations at
the Town of Eckville Alberta were plagued by callout
alarms from ultrasonic level controllers as foam and
grease covered the water surface and caused echo loss.
Operators installed new Greyline PSL 5.0 Pump Station
Level Controllers with redundant sensors to solve the
problem.
