Operating environment
Maximum altitude (without pressurization)
3048 m (10 000 ft)
Temperature
• At altitudes up to 2438 m (8000 ft)
– Operating:
5°C
to
35°C
(41°F
to
95°F)
– Storage: 5°C to 43°C (41°F to 109°F)
• At
altitudes
above
2438
m
(8000
ft)
– Maximum temperature when operating under the unpressurized condition: 31.3°C (88°F)
Note:
When you charge the battery, its temperature must be no lower than 10°C (50°F).
Relative humidity
• Operating:
8%
to
95%
at
wet-bulb
temperature
23°C
(73°F)
• Storage:
5%
to
95%
at
wet-bulb
temperature
27°C
(81°F)
Cleaning and maintenance
With appropriate care and maintenance your computer will serve you reliably. The following topics offer
information to help you keep your computer in top working order.
Basic maintenance tips
Here are some basic points about keeping your computer functioning properly:
• If
possible,
place
your
computer
in
a
well-ventilated
and
dry
area
without
direct
exposure
to
sunshine.
• Store packing materials safely out of the reach of children to prevent the risk of suffocation from plastic
bags.
• Keep your computer away from magnets, activated cellular phones, electrical appliances, or speakers
(more than 13 cm or 5 inches).
• Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/95°F).
• Avoid placing any objects (including paper) between the display and the keyboard or the palm rest.
• Computer display might be designed to be opened and used at a certain angle. Do not open the display
with force. Otherwise, the computer hinge might get damaged.
• Do not turn your computer over when the ac power adapter is plugged in, otherwise, it could break the
adapter plug.
• Before
moving
your
computer,
be
sure
to
remove
any
media,
turn
off
attached
devices,
and
disconnect
cords and cables.
• When picking up your open computer, hold it by the bottom. Do not pick up or hold your computer by the
display.
• Only an authorized Lenovo repair technician should disassemble and repair your computer.
• Do
not
modify
or
tape
the
latches
to
keep
the
display
open
or
closed.
• Avoid directly exposing your computer and peripherals to the air from an appliance that can produce
negative ions. Wherever possible, ground your computer to facilitate safe electrostatic discharge.
Appendix A. Important safety information
45
Summary of Contents for IdeaPad S940-14IWL
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