User's Manual

3 EXTREME CONDITIONS
• Extreme heat (moist or dry): no special procedures
required.
• Extreme cold: extreme cold might shorten battery life.
The intensity switch can be more difficult to operate
than at normal temperatures.
• Salt air: no special procedures required.
• Sea spray, water, mud and snow: ensure the battery
cap and the adjustment caps are tightened before
exposing the sight to sea spray, mud, snow or before
submerging the sight in water. Tighten the adjustment
caps and the battery cap by hand and by the use of the
tool (13B). Keep lens covers closed when the sight is
not being used. Clean lenses with lens paper/cloth and
wipe the sight dry as soon as possible after exposure to
water, sea spray, mud or snow.
• Dust storms and sand storms: keep lens covers closed
when the sight is not being used.
• High altitudes: no special procedures required.
CAUTION: Never clean the lenses with ngers. Use
lens paper/cloth. If lens paper/cloth is not available:
• To clear away debris (sand, grass etc.): blow away
the dirt or rinse with clear water.
• To clean lenses: fog the lenses or rinse with clear
water and clean them with a soft piece of cloth.