Environmental Specifications; Ambient Temperature; Temperature Gradient; Humidity - Seagate Momentus 5400.3 ST9100828SB 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.
Duty 50%, power-on hours (POH) of 8,750 per year (24 hours per day, 7 days per week operation). Actual
drive case temperature should not exceed 45°C (113°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 40°C (32° to 104°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)
10 Momentus 5400.3 SATA Blade Server Product Manual, Rev. E