Seagate DB35.4 DB35.4 Series SATA Product Manual - Page 17
Environmental specifications
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2.9 Environmental specifications 2.9.1 Drive case temperature Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet (3,048 meters). Drive case temperature should be measured at the location indicated in Figure 5 on page 19. Operating (Drive case temperature) Nonoperating (Ambient *) 0° to 75°C (32° to 167°F) -40° to 70°C (-40° to 158°F) * Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. 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) 40.0°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 The 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. 2.9.5.2 Nonoperating shock The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse of 2 msec duration. DB35.4 Series SATA Product Manual, Rev. C 11