Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate MOMENTUS ST9120315AS 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 70°C (158°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)
2.10.2

Temperature gradient

Operating 20°C per hour (68°F per hour max), without condensation
Nonoperating 35°C per hour (95°F per hour max), without condensation
2.10.3

Humidity

2.10.3.1 Relative humidity
Operating 5% to 95% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.3.2 Wet bulb temperature
Operating 37.7°C (99.86°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)
14 Momentus 5400.6 SATA Product Manual, Rev. E