Newcon Optik LRB 3000PRO - Manual (Page 23)

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7. STORAGE AND MAINTENANCE
The unit is a sophisticated precision optical instrument
equipped with laser and electronics. Therefore, it should be
handled with due care.
 Keep it away from direct sunlight.
 Avoid impacts, jolts, dust, moisture, and sharp changes
of temperature.
 Do not use the device at temperatures higher than 50 o C
(122 o F).
 Do not touch optical surfaces. Doing so may damage the
anti-reflection coating.
 Clean optical surfaces only with professional camera lens
cleaning supplies.
 Clean the exterior of the unit with a soft clean cloth.
 Keep away from heating appliances and central heating.
 Remove the battery when storing the device for long
time.
 All repair works must be performed by an authorized
service.
 Prevent bright light from focusing through the eyepiece.