Environmental Specifications; Ambient Temperature; Temperature Gradient; Relative Humidity - Seagate Momentus XT Product Manual

2.10

Environmental specifications

This section provides the temperature, humidity, shock, and vibration specifications for Momentus XT drives.
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 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
Operating: 0°C to 60°C (32°F to 140°F)
Nonoperating: –40°C to 70°C (–40°F 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

Relative humidity

Operating 5% to 95% noncondensing (30% per hour max)
Nonoperating 5% to 95% noncondensing (30% per hour max)
2.10.4

Wet bulb temperature

Operating 37.7°C (99.8°F max)
Nonoperating 40°C (104°F max)
2.10.5

Altitude

Operating –304.8 m to 3,048 m (–1000 ft to 10,000+ ft)
Nonoperating –304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
12 Momentus XT Product Manual, Rev. B