Dell OptiPlex 755 User Manual page 81

Wattage
Heat dissipation
Voltage
Backup battery
Physical
Height
Width
Depth
Weight
Environmental
Temperature:
Operating
Storage
Relative humidity
Maximum vibration:
Operating
Storage
Maximum shock:
Operating
Storage
Altitude:
Operating
Storage
Airborne contaminant level
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280 W
955 BTU/hr
NOTE: Heat dissipation is calculated based upon the
power supply rating.
manual selection power supplies — 90 to 135 V at
50/60 Hz; 180 to 265 V at 50/60 Hz
3-V CR2032 lithium coin cell
11.4 cm (4.5 inches)
39.9 cm (15.7 inches)
35.3 cm (13.9 inches)
10.4 kg (23 lb)
10° to 35°C (50° to 95°F)
–40° to 65°C (–40° to 149°F)
20% to 80% (noncondensing)
0.25 G at 3 to 200 Hz at 0.5 octave/min
0.5 G at 3 to 200 Hz at 1 octave/min
bottom half-sine pulse with a change in velocity of
50.8 cm/sec (20 inches/sec)
27-G faired square wave with a velocity change of
508 cm/sec (200 inches/sec)
–15.2 to 3048 m (–50 to 10,000 ft)
–15.2 to 10,668 m (–50 to 35,000 ft)
G2 or lower as defined by ISA-S71.04-1985