Newcon Optik nvs 4 用户手册
2
Precautions
NVS 4 is a sophisticated precise optical instrument
equipped with electronics.
Therefore, it should be handled with due care.
• Keep your device away from direct sunlight,
equipped with electronics.
Therefore, it should be handled with due care.
• Keep your device away from direct sunlight,
impacts, dust, moisture,
and sudden changes of temperatures.
and sudden changes of temperatures.
• Do not touch the optical surfaces with fingers.
Doing so may damage the anti-reflection coating.
• Cleaning of optical surfaces is allowed only with
professional camera lens cleaning supplies.
• Use only a soft clean cloth to clean the exterior of
the device.
• Do not take the cover off the lens if not necessary.
• Keep away from heating appliances and central
heating.
• Make sure to switch off the unit and remove the
heating.
• Make sure to switch off the unit and remove the
batteries during periods of non-operation and when
storing the device for long period of time.
storing the device for long period of time.
• Do not apply superfluous efforts at work with lens
assembly, agile elements and thread connections.
Due to considerable optical magnification of the eye-piece
some
small structures inside the tube coating in the form of dark
and/or white points may be seen in the field of view which
does not affect
the serviceability of the device
some
small structures inside the tube coating in the form of dark
and/or white points may be seen in the field of view which
does not affect
the serviceability of the device