Seagate ST1000LM014 manual Environmental specifications, Ambient temperature, Temperature gradient

2.10Environmental specifications

This section provides the temperature, humidity, shock, and vibration specifications for Momentus XT drives.

2.10.1Ambient 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)

2.10.2Temperature 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

2.10.3Relative humidity

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

2.10.4Wet bulb temperature

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

2.10.5Altitude

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