Dell 7500 - Manual (Page 4)

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If you use an extension cable with your AC adapter, ensure that the total ampere
rating of the products plugged in to the extension cable does not exceed the
ampere rating of the extension cable.
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To remove power from the computer, turn it off, remove the battery pack, and
disconnect the AC adapter from the electrical outlet.
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If your computer includes an integrated or optional (PC Card) modem, disconnect
the modem cable during an electrical storm to avoid the remote risk of electric
shock from lightning via the telephone line.
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To help avoid the potential hazard of electric shock, do not connect or disconnect
any cables or perform maintenance or reconfiguration of this product during an
electrical storm.
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PC Cards may become very warm during normal operation. Use care when
removing PC Cards after their continuous operation.
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Do not dispose of battery packs in a fire. They may explode. Check with local
authorities for disposal instructions.
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When traveling, do not check the computer as baggage. You can put your
computer through an X-ray security machine, but never put your computer
through a metal detector. If you have the computer checked by hand, be sure to
have a charged battery available in case you are asked to turn on the computer.
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When traveling with the hard-disk drive removed from the computer, wrap the
drive in a nonconducting material, such as cloth or paper. If you have the drive
checked by hand, be ready to install the drive in the computer. You can put the
hard-disk drive through an X-ray security machine, but never put the drive through
a metal detector.
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When traveling, do not place the computer in overhead storage compartments
where it could slide around. Do not drop your computer or subject it to other
mechanical shocks.
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Protect your computer, battery, and hard-disk drive from environmental hazards
such as dirt, dust, food, liquids, temperature extremes, and overexposure to
sunlight.
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When you move your computer between environments with very different
temperature and/or humidity ranges, condensation may form on or within the
computer. To avoid damaging the computer, allow sufficient time for the moisture
to evaporate before using the computer.
NOTICE: When taking the computer from low-temperature conditions
into a warmer environment or from high-temperature conditions into
a cooler environment, allow the computer to acclimate to room
temperature before turning on power.