Dell Precision 690 - Manual (Page 83)

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CAUTION: Your computer is heavy and can
be difficult to maneuver. Seek assistance
before attempting to lift, move, or tilt it; this
computer requires a two-man lift. Always lift
correctly to avoid injury; avoid bending over
while lifting. See your Product Information
Guide for other important safety information.
Environmental
Temperature:
Operating 10° to 35°C (50° to 95°F)
Storage –40° to 65°C (–40° to 149°F)
Relative humidity 20% to 80% (noncondensing)
Maximum vibration:
Operating 5 to 350 Hz at 0.0002 G 2 /Hz
Storage 5 to 500 Hz at 0.001 to 0.01 G 2 /Hz
Maximum shock:
Operating 40 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 20 in/sec [51 cm/sec])
Storage 105 G +/- 5% with pulse duration of 2 msec +/- 10%
(equivalent to 50 in/sec [127 cm/sec])
Altitude:
Operating – 15.2 to 3048 m (–50 to 10,000 ft)
Storage – 15.2 to 10,668 m (–50 to 35,000 ft)