Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate Momentus 4200.2 ST9100825A 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 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 5° to 55°C (41° to 131°F)
Nonoperating –40° to 70°C (–40° to 158°F)
2.10.2

Temperature gradient

Operating 20°C per hour (68°F per hour max), without condensation
Nonoperating 30°C per hour (86°F per hour max), without condensation
2.10.3

Humidity

2.10.3.1 Relative humidity
Operating 5% to 90% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.3.2 Wet bulb temperature
Operating 30°C (86°F max)
Nonoperating 40°C (104°F max)
2.10.4

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 Momentus 4200.2 Product Manual, Rev. C