Luna Optics LN-PRS40M - Manual (Page 5)

INSTALLING THE BATTERIES:
Your night vision unit operates on two AA-type alkaline batteries
commonly available in electronics shops, drug and convenience
stores, as well as supermarkets.
To install the batteries, remove the battery compartment cover (4),
by turning the fixing screw (5) counter-clockwise. Install the
batteries according to the diagram indicated next to the
compartment. Once the batteries are inside, replace the cover by
applying firm pressure to it and turning the fixing screw clockwise.
TURNING THE UNIT ON AND OFF:
Your night vision unit has a convenient Power/Reticle Switch (3). To
turn the unit ON, first flip up the objective lens cover (9) (ONLY IN
THE DARK!) and rotate the switch (3) from OFF to ON position.
Look through the rubber eyecup – you should see the green glow.
Even if the image is not yet sharp, the unit is operating. To turn the
unit OFF, flip the power switch back to the OFF position.
IMPORTANT: Please make sure the switch is in OFF position,
as even if the unit is turned off, the green glow will continue for up
to several minutes, depending on the outside light conditions. This
is normal. Always replace the objective lens cover after the unit is
turned off and is no longer is in use.
FOCUSING THE UNIT:
To obtain the sharp image, you must first rotate the Ocular Focusing
Wheel (1) in either direction, until you notice in which position the
image is at its best. After that, rotate the Distance Focusing Wheel
(2) also until the image is at its best. You may have to repeat the
process again, until the image is sharp and clear. Once the clear
image is obtained, you no longer need to adjust the Ocular Focusing
Wheel, just rotate the Distance Focusing Wheel to adjust the
distance to the object you are viewing. Please be aware that
Generation-1 night vision image resolution and clarity is best at the
center of the image and as you look to the peripheral area you will
notice some distortion. This is normal and is inherited in the
technology.
USING INFRARED ILLUMINATOR:
Your night vision scope is equipped with a built-in multi-stage
Infrared illuminator light (7). This light operates in a spectrum,
which is normally invisible to a human eye, however with the help of
the tube, located inside the unit, you will see a beam of light when
looking though the ocular lens. This Infrared light is here to assist