Brochure

Catalog CIC-2003-1/US
Industrial Refrigeration Products: Liquid Level Control
Parker Hannifin Corporation
Climate & Industrial Controls Group
Cleveland, OH
425
Industrial
Refrigeration
Products
Programmable Liquid Level Controller
●
Oversized keypad on front panel for programming
●
Easy to read enlarged LED digital display
●
5 programmable 6 amp fused relays
●
Level simulation mode facilitates control wiring check
and test
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Large enclosure with separable terminal blocks accom-
modate up to 14 gage wire
●
Plug-in style terminal blocks with recessed screws
●
Conventional intstrument wiring from controller to probe
●
120/240 V 60 Hz or 110/220 V, 50 Hz Power
●
4-20 mA Output Signal
Purpose
The Programmable Liquid Level Control provides remote
liquid level management for industrial refrigeration. The
PLLC is designed for use specifically with Parker's
Depth
Tracker
transducer liquid level probe. The PLLC provides the
power source for the current loop of the probe. The trans-
ducer probe is used to provide a current signal proportional
to the vertical liquid level in a standpipe or vessel. The PLLC
serving as a switching mechanism also converts the return
signal and performs up to 5 programmable relay functions.
Dimensions
Unit is 9½" high by 6¾" wide by 2" deep.
PLLC
Strain Relief
1" Conduit Knockout
Channels:
1 High Red
2 Level Control
3 Level Control
4 Low Green
5 Low Red
How to Order
PLLC
Programmable
Liquid Level
Controller
Wiring
The separable terminal blocks on the PLLC will accommo-
date up to 14 gage wire. The Line Voltage Input can be
either 120/240V 60Hz or 110/220V 50Hz. The PLLC
provides the power source for the current loop of the
transducer probe. The programmable relays are individually
5 amp fused. Relays are equipped with normally open and
closed terminals and can be wired as either. The maximum
recommended distance between PLLC and probe is 5000 ft.
Refer to Bulletin 61-50.
Weight
1.8 kg (4 lb)
Technical Information, Dimensions and How to Order