ATN PS28 Operator's Manual page 26

To install the battery unscrew the cap of the battery housing and
insert the battery following the polarity arrows marked on the
housing. Put the cap in place.
The IR-450 illuminator has a control panel with two buttons. To
switch the IR illuminator on/off press "+" and "-" buttons simultane-
ously. When the IR illuminator is switched on you can see the green
LED lit on the back side of IR450. By pushing the buttons "+" and
"-" you may adjust the IR brightness.
The IR beam is focusable to change the field of coverage. To
change the beam width slightly turn the IR lens.
You may need adjust the focus-
ing of the IR beam to change
the field of coverage.
Do it by slightly rotating the IR
lens. The windage and eleva-
tion screws help adjust the di-
rection of the IR beam from the
IR450 in order to focus on the
scene observed in the view-
finder of your NVD. Use the
included Allen wrench to rotate
the adjusting screws until the
IR beam is centered. Please
remember the adjustments
should be per formed under
night light conditions only.
You can change the position of the IR control panel to meet your
your needs. The wrench that is included in the set, is used to
loosen the nut located on the body of the IR. Rotate the IR to the
desired position. Tighten the nut with the wrench to secure the
new position.
2-10
WRENCH
TO LOOSEN NUT
CONTROL PANEL
FIGURE 2-9. CHANGING OF
CONTROL PANEL POSITION
TO TIGHTEN
NUT
NUT