Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate ST920210AS Product Manual

2.9

Environmental specifications

2.9.1

Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions.
Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
Operating 0° to 60°C (32° to 140°F)
Nonoperating –40° to 70°C (–40° to 158°F)
2.9.2

Temperature gradient

Operating 20°C per hour (68°F per hour) max, without condensation
Nonoperating 30°C per hour (86°F per hour) max
2.9.3

Humidity

2.9.3.1

Relative humidity

Operating 8% to 90% noncondensing (30% per hour) max
Nonoperating 5% to 95% noncondensing (30% per hour) max
2.9.3.2

Wet bulb temperature

Operating 30°C (86°F) max
Nonoperating 40°C (104°F) max
2.9.4

Altitude

Operating –304.8 m to 3,048 m (–1,000 ft to 10,000 ft)
Nonoperating –304.8 m to 12,192 m (–1,000 ft to 40,000 ft)
12 LD25 Series 5400.2 Product Manual, Rev. C