Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate EE25.2 - Series 80 GB Hard Drive Product Manual

2.10

Environmental specifications

2.10.1

Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature, measured on baseplate, should not exceed 90°C (194°F) within the operating
ambient conditions.
Extreme: -30° to 85°C (-86° to 185°F)
Operating
Rugged: -20° to 75°C (-68° to 167°F)
–40° to 95°C (–140° to 203°F)
Nonoperating
2.10.2

Temperature gradient

20°C/hour without condensation
Operating
30°C/hour
Nonoperating
2.10.3

Humidity

2.10.3.1 Relative humidity
Operating 5% to 90% noncondensing (30% per hour max gradient)
Nonoperating 5% to 95% noncondensing (30% per hour max gradient)
2.10.3.2 Wet bulb temperature
Operating 30°C (86°F max)
Nonoperating 40°C (104°F max)
2.11

Altitude

Operating (Extreme models: -30°C to 85°C)
Operating (Rugged models: -20°C to 75°C)
Nonoperating (below mean sea level, max)
2.11.1

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.11.1.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 300 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second. For 11 msec shock duration, these drives will withstand operating shock up to 150
Gs.
EE25.2 Series Product Manual, Rev. E
–304.8 m to 5,500 m (–1000 ft to 18,100 ft)
–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
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