Seagate ST960815AB Momentus 5400.3 PATA Blade Server Product Manual - Page 20

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 8,760 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 38°C (100.4°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 5400.3 PATA Blade Server Product Manual, Rev. B