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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!
6.1 Pre-starting procedures.
Unpack the device. 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 Daytime testing.
Check the functioning of the device by switching it on (push and hold
button 4) and looking through the eyepieces (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 it is a great time to fill the warranty card.
Note: The unit will remain on for up to several minutes after
releasing the “On” button. This is normal.
Direct the device on an object placed within 8-15m from the
viewer. Turning the eyepieces (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 two images merge into one. If you wear
glasses fold the eyepiece rubber guards (5) to obtain closer focus
distance.
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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 eyepiece some
small structures inside the tube coating may be seen in the field of
view in the form of dark and/or white points, 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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