Seagate ST3250823AS Product Manual - Page 24

drive activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is necessary. 2.9 Environmental specifications 2.9.1 Ambient temperature Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions for standard models, or 64°C (147°F) within the operating ambient conditions for all models. Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet (3,048 meters). Operating: Nonoperating: 0° to 60°C (32° to 140°F) -40° to 70°C (-40° to 158°F) 2.9.2 Temperature gradient Operating: Nonoperating: 20°C per hour (68°F per hour max), without condensation 30°C per hour (86°F per hour max) 2.9.3 Humidity 2.9.3.1 Relative humidity Operating: Nonoperating: 5% to 90% noncondensing (30% per hour max) 5% to 95% noncondensing (30% per hour max) 2.9.3.2 Wet bulb temperature Operating: Nonoperating: 37.7°C (99.9°F max) 40°C (104°F max) 2.9.4 Altitude Operating: Nonoperating: -60.96 m to 3,048 m (-200 ft. to 10,000+ ft.) -60.96 m to 12,192 m (-200 ft. to 40,000+ ft.) 2.9.5 Shock All shock specifications assume that the drive is mounted securely with the input shock applied at the drive mounting screws. Shock may be applied in the X, Y or Z axis. 2.9.5.1 Operating shock These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more than two times per second. 16 Barracuda 7200.8 Serial ATA Product Manual, Rev. D