6. TROUBLESHOOTING
No green (or black and white) image visible
Check that the batteries are installed properly and are full charged. Wrongly installed and expended batteries are the most common problems leading users to believe their Unit is defective.
Image is unclear
Check if the lenses are foggy or dusty. Clean them if necessary.
If the image is still unfocused – adjust the diopter correction of the eyepieces. The image will always be unclear when the objective lens cap is in place. The unit is designed to provide a clear image in dark condition in which the objective lens cap is not required.
Image flashes
Image may flash during the first two minutes after activation. It may continue flashing if exposed to bright light (even with the lens cap on).
Condensation accumulates on Unit
When the Unit is moved from cold to warm environments internal condensation may appear. If this occurs, the Unit must be warmed up for up to two hours in order to regain full operational capacity.
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