This unit is a sophisticated electronic device. To operate it properly, please read this manual carefully. Ignoring operation procedures described in this manual will void your warranty.
•NEVER disassemble the unit. This device contains a source of high voltage, which may be hazardous to your health.
•NEVER open objective lens of an active unit in bright light, including daylight. In the daytime the objective lens must be covered by caps. A tiny hole in each cap provides enough light for daytime testing.
•NEVER aim active unit at intense light sources, such as lights, headlamps, campfires, the Moon, etc.
•NEVER reverse the polarity of a battery.
•NEVER connect the unit to external power sources.
•ALWAYS remove battery when the unit not in use for a long period.
•ALWAYS keep the objective lenses covered when not in use.
•ALWAYS store the unit in a warm dry place.
Precautions
BDN 14x50 is a sophisticated precise optical instrument equipped with electronics. It should be handled with due care:
•Unit contains fragile components. Avoid impacts, dust, moisture and sharp changes of temperature.
•Do not touch the optical surfaces other than for cleaning. Doing so may damage the
•Clean optical surfaces with professional lens cleaning supplies.
•Use only a soft clean cloth to clean the exterior of the device.
•Keep the unit away from sources of heat, such as heating appliances, sunlight or central heating.
•Switch off the unit and remove the battery during the extended periods of
•Do not keep the device at temperatures higher than 60oC (140oF).
•Do not apply excessive force or pressure to the lens assembly, movable parts and thread connections.
•Small dark and/or light points may be seen in the field of view due to considerable optical magnification of the eyepiece. This does not affect the operational capabilities of the device.
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