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APPLICATION
The Viper Night Vision Scope is a complex opticoelectronic system for individual use. The
device consists of (see above figure) the objective lens assembly, eyepiece and the body. The
body contains a 1st Gen.+ image intensifier tube assembly with an integrated high voltage
power source and the three volt battery housing. When installing the battery one should keep
in mind that the polarity of the battery should coincide with the diagram on the body next to the
battery housing cap.
Objective lens protective cover (not shown) is intended to protect the objective lens from dust
and scratches. It also will act as a daylight filter, allowing you to test the scope in daylight or
other bright light situations. The pinhole in the center of the protective cover allows the user to
check the operation ability of the device in daylight conditions.
NOTE: Do not test the scope in daylight conditions even with the daylight filter/lens cap on for
more than ten (10) minutes.
The device is powered up by sliding the switch on the rear of the unit labeled “PWR”. You may
notice a persistent green glow for up to five (5) minutes after you have turned the unit off. This
is normal for the 1st Gen. light intensifier tube.
OPERATION
• Take the monocular out of the case.
• Install the battery into the housing with the polarity order as shown on the scope. Battery
Type: 3 Volt Lithium, #CR123A .
• Slide the switch to turn the unit on with the protective lens cover still attached to the lens. Do
not turn the unit on in the daytime without the protective lens cap on. You should see
green glow in the eyepiece.
• Observe the scene and adjust the diopter for optimal image clarity.
• You may now enter a dark environment or simply shut the lights off in order to darken the
room.
• Next, remove the lens cap/daylight filter. Adjust the front lens for the distance of the focus.
You should not have to readjust the diopter.
FOCUSING
To focus the Viper, first you will need to adjust the diopter. Simply turn the
diopter clockwise until it stops. Then, while looking throught the diopter at
an object, slowly turn the diopter back counter clockwise until the grain in
the image is sharp.
NOTE: We suggest that you focus the diopter during daylight with the
filter on.
Next focus the front lens until the image and the grain are both sharp. When
you are in low-light conditions and the daylight filter is off, you may focus the
front lens to receive sharp image, the diopter should not be adjusted.
NOTE: The front lens should be readjusted as you view objects at different
distances.