Installation & Operating Instructions
PC/LM Series
DESCRIPTION
The LightMaster PC Series Lighting Control system inde-
pendently controls one or two circuits based on the amount
of natural light in an area. When the detected light drops
below the configured foot-candle setting, LightMaster turns
circuits ON. When natural light rises above the setting,
LightMaster turns circuits OFF. Each circuit has adjustable
time delay dials from 0 to 100 seconds to prevent unwant-
ed switching caused by headlights, lightning, and other
conditions. LightMaster can be used with LS2 high-range
opaque sensors for typical outdoor dusk-to-dawn applica-
tions or with LS1 clear sensors for indirect light applica-
tions.
Dimensions
MOUNTING THE LightMaster SENSORS:
Follow these guidelines to mount the LS1 or LS2 sen-
sor.
• If sensor is mounted directly to enclosure of con-
troller, use standard conduit connection means.
• If sensor is mounted remotely from controller, either
route sensor wiring separately from class 1 wiring
or use wiring for sensor rated for the minimum volt-
age of adjacent class 1 wiring.
• The light level sensor can be mounted indoors or
outdoors.
• It must be mounted vertically with the wires facing
down.
• The wiring length should not exceed 330 feet and
should not be run in close proximity to current car-
rying wires.
• If you are using the sensor for dusk/dawn sensing,
position the sensor with the arrow facing a wall.
• If you are using the sensor to control interior light-
ing, awnings, or shades, position the sensor with
the arrow facing away from the building towards
the sunlight.
• Be sure to position the sensor so unwanted light-
ing, such as car headlights, will not influence it.
WARNING
Risk of Fire or Electric Shock
• Disconnect power at the circuit breaker(s) or disconnect switch(es) before installing or
servicing.
• More than one circuit breaker or disconnect switch may be required to de-energize the
equipment before servicing.
• Use #22 - #12 AWG wire - COPPER conductors ONLY. Rated 90°C Min.
• Installation and/or wiring must be in accordance with national and local electrical code
requirements.
• For outdoor locations, raintight, or wet locations, conduit hubs that comply with requirements
of the UL514B (standard for fitting for conduit and outlet boxes) are to be used.
• Photoelectric sensor shall be directly mounted to enclosure using standard conduit
connection means.
• When photoelectric sensor is mounted in a remote location, wiring shall be routed separately
from Class 1 wiring.
• When photoelectric sensor is mounted in a remote location and routed with Class 1 wiring,
the wiring insulation shall be rated for the minimum voltage of the Class 1 wiring.
• KEEP DOOR CLOSED AT ALL TIMES when not servicing.
NOTICE
•
The warranty will be void if the wrong voltage is applied. Connect the wires in accordance with
the wiring diagram.
MOUNTING THE LightMaster MODULE
There are multiple mounting options for the LightMas-
ter module. Follow the applicable guidelines for the
appropriate mounting method for your facility.
•
Surface Mount in a control panel or enclosure
with a standard DIN rail
•
Place the top two protruding guides located
on the back of the unit over the top lip of
the DIN Rail and snap into place.
•
Mount as a Stand alone unit
• Mount the LightMaster in a TYPE 3R indoor/
outdoor enclosure.
NOTE: Also available: LM2 Series system with included
TYPE 3R enclosure.
