•NEVER aim active unit at intense light sources (i.e. lights, headlamps, campfires, the moon, etc.)
•NEVER reverse the polarity of a battery
•NEVER connect the unit to external power sources
•ALWAYS remove batteries when not in use for an extended period of time
•ALWAYS keep the objective lenses covered
when not in use.
•ALWAYS store in a warm dry place when not in use
THANK YOU FOR PURCHASING THE NIGHT VISION RIFLE SCOPE DN-140M.
PLEASE REQUEST TO CHECK THE DEVICE FOR PROPER OPERATION BEFORE PURCHASE.
PLEASE READ ALL THE INSTRUCTIONS CAREFULLY BEFORE USING.
2. OVERVIEW
The night vision riflescope
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8. TROUBLESHOOTING
The scope does not work.
-Check that the batteries are installed properly.
-Check the charge of the batteries. Replace if they are weak. Do not use old batteries with new ones.
The image does not appear in focus.
Bring the inspected object to the center of the image. Turning the objective lens ring (7), and/or the eyepiece (2) adjust to achieve the clearest image on the screen. Repeat the steps of focusing if necessary
If the view still does not seem in focus, clean the lenses; they could be foggy or dusty.
Unit flashes
It is normal for the unit to flash within the first 2 minutes of activation. If the flashing continues afterwards the following is a possible cause: bright environment (even with the cap closed!)
Condensation accumulates on the parts.
It is O.K. to use the scope in cold. However, when the unit is brought from the cold into a warm environment, it has to warm up for up to 5 hours (not minutes!). Only then should it be turned ON again.
Visibility decreases and / or disappears.
Bright light sources (moon, projectors or headlights) may cause visibility to degrade or even completely disappear. Move the scope away from the light source immediately.
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