Newcon Optik NIGHT VISION MONOCULAR - Manual (Page 11)

• The capacity of the battery in low temperature is decreased. If possible the batteries should
always be protected from low temperatures.
High temperature operation
• Unit functions properly at temperatures up to +40
°
C.
• If possible please make sure that battery is protected from high heat and direct sun light.
Operation in high moisture environments
In the areas of high moisture the optical surfaces of the unit should always be clean and dry.
Moisture on surfaces of the unit can be discarded with clean dry cloth.
Optical surfaces should be cleaned with special optical cloth.
OPERATION INSTRUCTIONS (con’t)
21
Environmental Conditions
Nightwitness functions equally reliable in normal as well as extreme weather conditions.
Although the unit performs reliably in harsh weather conditions and high moistures it is expected that
user will do due diligence and pay more close attention to operation instructions, in order to keep unit
in good working order and prevent early demise of the unit.
Low temperature operation
• Unit functions properly at temperatures below -20
°
C. In low temperatures the objective focus-
ing ring as well as dioptric correction ring may become more stiff. Do not force the adjustment rings
as they may become nonoperating.
• The unit should never be subjected to extreme weather fluctuations. If it is required to move
the unit from one extreme environment to other, the unit should be placed in waterproof container and
closed it tight etc... The container should not be opened until it reaches same temperature as the new
environment, if this is not performed the unit will have moisture condensation on optical surfaces.
OPERATION INSTRUCTIONS (con’t)
20