Operation; Infra-Red Illuminator - ATN NVB5X User Manual

opERATIon

Diopter adjustment
Lens focus adjustment
• 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, push the button again by short press (less than 1.5 sec.).
focusIng
To focus the NVB5X, first you will need to adjust the diopter. Simply turn the diopter clock-
wise 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.

InfRA-RED IllumInAToR

Infra-red illuminators, or IR illuminators, are common to night vision. The IR light greatly
Built-in IR illuminator
To turn the IR off, push the button again by long press (more than 1.5 sec.).
NOTE: The IR will automatically turn off when the unit's power is turned off.
3
• Take the NVB5X 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 .
• Press the button (short press - less than 1.5
sec.) to 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 pro-
tective lens cap on. You should see green
glow in the eyepiece.
enhances the performance of the NVB5X
while remaining almost totally invisible to the
naked eye.
The NVB5X goggles have a built in IR with in-
dicator "ON" light within the FOV. To turn the
IR on, push the button by long press (more
than 1.5 sec.). It is important to remember
that the IR illuminator is simply an infra
red light source, and like any light source,
it may loose its effectiveness over a great
distance.