3
BATTERY INSTALLATION
Install standard CR123A batteries as follows:
1. Unscrew the battery cap (A).
2. Insert CR123 battery (B), observing the polarity as indi-
cated.
3. Replace the battery cap and screw cap hand tight.
OPERATION
• Take the NVB3X out of the case.
• Install the battery into the housing with the polarity order as shown on the scope. Bat-
tery Type: 3 Volt, Lithium, CR123A .
• To turn on the device rotate switch once clockwise. Turn the unit on by 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.
• To turn the unit off, rotate switch counter clockwise to initial position.
FOCUSING
To focus the NVB3X, first you will need to
adjust the diopter. Simply turn the diopter
clockwise until it stops. Then, while looking
through 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 diop-
ter 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.
INFRA-RED ILLUMINATOR
Infra-red illuminators, or IR illuminators, are common to night vision. The IR light greatly
enhances the performance of the NVB3X while remaining almost totally invisible to the
naked eye.
A
B
Lens focus adjustment
Diopter
adjustment
