Datasheet

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43
Available Models:
Features:
• One unit serves pump-up and pump-down
applications
• Adjustable sensitivity knob (4.7 to 100Kohms)
• Debounce time delay (2 seconds)
• Single or dual probe inputs (plus a common
reference)
A pprovals:
PC-100-LLC-CZ
PC-200-LLC-CZ
PC-100-LLC-GM
PC-100-LLC-GM-OT (sold with OT08 socket)
PC-200-LLC-GM
PC-200-LLC-GM-OT (sold with OT08 socket)
Specications
The PC-xxx-LLC-CZ & PC-xxx-LLC-GM
are liquid level control relays used to control
conductive liquid pumping operations in a pump-
up or pump-down application. The units come in
two different voltage ranges (see specs below).
The units have an adjustable sensitivity knob
(4.7k to 100k ohms) that is set according to the
resistance level at which you want the probes (sold
separately) to sense the conductive liquid. The units
have a built-in debounce time delay that prevents
the relay from energizing if the probe resistance
momentarily goes above or below the sensitivity
setpoint (due to liquid splashing in the tank).
The units operate their internal relay based on
inputs from a high and low probe and a common
reference (when a conductive tank is used) or
common probe (when a non-conductive tank is
used).
For more information see:
See Appendix A, page 68, Figure 8 for dimensional
drawing.
See Appendix B, page 78, Figures 37 & 38 for typical
wiring diagrams.
PC-xxx-LLC-GM
• Compatible with Gems’ Series 16M general
purpose control
PC-xxx-LLC-CZ
• Compatible with Crouzet’s PNR & PNRU series
liquid level control
Auxiliary Products:
• 8-pin octal socket (P/N: CT0T08-PC)
Model PC-xxx-LLC-CZ / PC-xxx-LLC-GM
liquid level control, 8-pin plug-in for two probe inputs with SPDT output
Pump Controller
Standards Passed
Electrostatic Discharge (ESD) ...........................IEC 61000-4-2, Level 3, 6kV contact, 8kV air.
Radio Frequency Immunity (RFI) ........................150MHz, 10V/m
Fast Transients ........................................IEC 61000-4-4, Level 3, 2kV input
power and controls
Safety Marks
UL (OT08-PC octal socket required) .................UL508 (File #E68520)
CE ..............................................IEC60947-6-2
Dimensions ......................................1.75”H x 2.375”W x 4.125”D
(44.45 x 60.33 x 104.78mm)
Weight .......................................... 0.65 lb. (10.4 oz., 294.84 g)
Mounting Method ................................ DIN rail or surface mount (plug into
OT08-PC socket)
Socket Available ................................. Model OT08-PC (UL Rating 600V)
The 600V socket can be surface mounted or installed on DIN Rail.
Input Characteristics
Supply Voltage
PC-100-LLC-CZ, PC-100-LLC-GM ..................95-120VAC
PC-200-LLC-CZ, PC-200-LLC-GM ..................190-240VAC
Frequency ....................................... 50/60Hz
Functional Characteristics
Probe Sense Voltage .............................. 5vdc pulsed
Debounce Time Delay ............................. 2 seconds
Probe Sensitivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7k to 100k Adjustable
Output Characteristics
Output Contact Rating
Pilot Duty .......................................480VA @ 240VAC
General Purpose .................................. 10A @240VAC
General Characteristics
Temperature Range ...............................-40° to 70°C (-40° to 158°F)
Maximum Input Power ............................5 W
Must use Model OT08-PC or RB08-PC
socket for UL Rating!
Note: Manufacturer’s recommended screw
terminal torque for the RB Series and
OT Series Octal Sockets is 12 in.-lbs.
CATALOG_SYMCOM_2014.indd 43 6/10/14 11:06 AM