Dell EMC PowerEdge R740xd2 - Page 183

Temperature Specications
Maximum temperature gradient (operating and
storage)
20°C/h (36°F/h)
Table 32. Relative humidity specications
Relative humidity Specications
Storage 5% to 95% RH with 33°C (91°F) maximum dew point.
Atmosphere must be noncondensing at all times.
Operating 10% to 80% RH with 29°C (84.2°F) maximum dew point.
Table 33. Maximum vibration specications
Maximum vibration Specications
Operating 0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations)
Storage 1.88 G
rms
at 10 Hz to 500 Hz for 15 minutes (all six sides tested)
Table 34. Maximum shock pulse specications
Maximum shock pulse Specications
Operating Six consecutively executed shock pulses in the positive and negative x, y, and z
axis of 6 G for up to 11 ms.
Storage Six consecutively executed shock pulses in the positive and negative x, y, and z
axis (one pulse on each side of the system) of 71 G for up to 2 ms.
Table 35. Maximum altitude specications
Maximum altitude Specications
Operating 3048 m (10,000 ft)
Storage 12,000 m (39,370 ft)
Table 36. Operating temperature derating specications
Operating temperature derating Specications
Up to 30°C (86°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft), above 950 m (3,117
ft).
30–40°C (86–104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft), above 950 m (3,117
ft).
40–45°C (104–113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft), above 950 m (3,117
ft).
Technical specications 183