Newcon Optik DN-140 operation manual Troubleshooting, Visibility decreases and / or disappears

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NEVER aim active unit at intense light sources (i.e. lights, headlamps, campfires, the moon, etc.)3

NEVER reverse the polarity of a battery

NEVER connect the unit to external power sources

ALWAYS remove batteries when not in use for a long period

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-140.

PLEASE DEMAND TO CHECK THE DEVICE FOR PROPER OPERATION WHEN BUYING IT.

PLEASE READ ALL THE INSTRUCTIONS CAREFULLY BEFORE USING.

2. OVERVIEW

The night vision rifle scope DN-140 is an observational optico-electronic monocular device intended for precise shooting, examining distant objects orientation at nighttime conditions. The unit utilizes an image intensifier which amplifies available moonlight,

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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 eye-piece (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 it is allowed to turn it 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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Contents Camera/Video Adaptable Acceptance CertificateContents DisclaimerWarranty What This Warranty Does Not CoverTroubleshooting Visibility decreases and / or disappearsUsing DN-140 As a Rifle Scope FeaturesPrecautions Using the DN-140 with a Camera or a Video CamcorderOperation at night AT Insufficient Ambient IlluminationComponents Name QuantitySpecifications of DN-140 Construction Pic