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6. OPERATION INSTRUCTIONS
WARNING!
NEVER OPERATE YOUR NIGHT VISION DEVICE IN
DAYLIGHT AREAS WITHOUT THE LENS COVERS ON!
NEVER DIRECT THE LENS IN THE DIRECTION OF
BRIGHT LIGHT!
Pre-starting procedures.
6.1 Unpack the device. In order to install the battery, first
open the battery house cover (2), and install the battery. Observe the
correct polarity indicated on the housing. Close the battery house
cover.
6.2 Check the functioning of the device by switching it on
(push and hold button 4) and looking through eye-pieces (5). (Make
sure the lens caps are on while operating during the day). If power
supply and the batteries are O.K., you will see greenish lit screen. If
the screen is not lit, check the batteries. Replace the battery if
necessary. If everything works, now is a great time to fill the warranty
card.
Note: The unit will remain on for up to several minutes after
switching the power off. This is normal.
Testing of operation:
Direct the device on an object placed within 8-15m from the viewer.
Turning the eye-pieces (5) try to achieve the sharpest image on the
screen of the image tube. Adjust the distance between the eyes by
folding the binoculars until 2 images will merge into 1.
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Warning! After transportation or keeping the device at temperature
lower than -25°C (-13°F), the device must be warmed up to ambient
temperature for at least 2 hours.
Precautions
BN-5 is a sophisticated precision optical instrument equipped with
electronics. Therefore, it should be handled with due care.
• Keep your device away from direct sunlight, impacts, dust,
moisture, and sudden changes of temperatures.
• Cleaning of optical surfaces is possible only with professional camera
lens cleaning supplies.
• Do not touch optical surface with fingers. Doing so may damage the
anti-reflection coating.
• To clean the exterior of the device, use only a soft clean cloth.
• Do not take the covers off the lenses if not necessary.
• Keep away from heating appliances and central heating.
• Make sure to switch off the unit during periods of non-operation and
when storing the device for long period of time.
• Do not apply superfluous efforts at work with lens assembly, agile
elements and thread connections.
Due to considerable optical magnification of the eye-piece some small
structures inside the tube coating in the form of dark and/or white points
may be seen in the field of view which does not affect the serviceability
of the device
The resolving power (resolution) may change in the direction from the
center towards the perimeter of the field of view. This is an inherent
feature of the image tube type utilized in the device. We would
recommend to place the scene of observation in the center of the field of
view.
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