Each roller tube has a set of limit switches. The extension and retraction limit
switches have been preset at the factory. In general, we advise you to avoid
readjusting these switches.
In some cases, to enable proper alignment of the displayed image on the
screen, you may need to adjust the extension of the screen or mask. If
adjustment to the extension is necessary, carefully follow these instructions.
Modifying the extension of the screen and the mask
You can increase the extension of the screen and mask up to 3" / 7.6 cm past
the factory preset stop, or you can decrease the extension by approximately
4-6" (10-15 cm) from the factory preset stop. Do not attempt to modify the
extension beyond these recommended amounts.
The limit switches for each are located on the left side of the roller tube inside
the case, as shown in Figure 12.
To increase the fully extended (screen down) stop position:
1. Lower the screen or mask to its current stop position.
2. Locate the white extension (down) limit switch on the left side of the
roller tube. Use a screwdriver to turn the switch in a
counterclockwise direction. If the power is still on, the screen or
mask will drop incrementally as the switch is turned.
Note:
One complete turn of the switch will make approximately a 3/4"
(2 cm) change in the screen or mask stop position.
To decrease the extension:
1. Lower the screen or mask until it is extended about halfway down.
2. Locate the white extension (down) limit switch on the left side of the
roller tube. Use a screwdriver to turn the switch in a clockwise
direction.
Note:
One complete turn of the switch will make approximately a 3/4"
(2 cm) change in the screen or mask stop position.
ElectriMask Electriscreen: Owner’s Manual
13
A
DJUSTING THE
S
CREEN
E
XTENSION
Caution
Improper adjustment of the limit switches can cause irreparable
damage to the screen itself, resulting in voiding the factory
warranty.
Warning!
The screen and mask are fully retracted when the battens are
flush with the bottom of the case. Do not attempt adjustments
with the yellow retraction (UP) limit switch that will further retract
the screen. Incorrect adjustment of the switch will cause severe
screen damage. Please consult the factory if you have any
questions.
Figure 12:
Underside view
of Electriscreen
Electrical Access Plate
Internal Electrical Box
Screen
Limit
Switches
Mask Limit
Switches
Mask
Screen
