A
LPHA
X
PRESS
2020 RGB F
RONT
A
CCESS
F
ULL
-M
ATRIX
D
ISPLAYS
S
IGN
O
PERATION
AND
M
AINTENANCE
M
ANUAL
(PN 1523610201
REV
.
B
)
5-21
Part Replacement
5
L
IGHT
SENSOR
REPLACEMENT
■
Light sensor replacement
Guidelines for mounting the light sensor
•
The light sensor must be mounted facing in the same direction the front of the sign is facing.
•
Make sure the light sensor is
NOT
in the shade because this may make it difficult to read your sign during brighter periods of the
day.
•
You can strap the light sensor to a pole, but make sure it is facing the same direction as the front of the sign.
•
Do
NOT
mount light sensor directly to the sign; however it is okay to mount to the sign’s sub–structure.
•
The light sensor plug connection must be connected properly for a weather–tight seal.
Installing the light sensor assembly
1. Mount the light sensor.
Use one of the following methods to mount the light sensor:
Traditional wall mount
•
Position the light sensor on a flat vertical surface in close proximity to the sign and make sure it is facing the same
direction as the front of the sign.
•
Insert six screws (not supplied) into the mounting holes (three on each side) and tighten.
Perpendicular wall mount
•
Unscrew the two bracket screws and rotate the bracket 90 degrees.
•
Tighten the bracket into position with the two screws.
•
Position the side of the light sensor on a flat vertical surface in close proximity to the sign, making sure it is facing the
same direction as the sign.
•
Insert two screws (not supplied) into the mounting holes and tighten.
WARNING
Hazardous voltage.
Contact with high voltage may cause death or serious injury.
Always disconnect power to unit prior to service.
Front of light sensor
Back of light sensor
Facing same
direction as
front of sign.
Bracket is turned 90
degrees
Mount side against a flat surface
Two bracket screws
Mounting screw holes
Summary of Contents for AlphaXpress 2020
Page 51: ......
