Dell PowerEdge R740xd2 EMC Installation and Service Manual - Page 169

Table 33. Temperature specifications, Table 38. Operating temperature derating specifications

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Table 33. Temperature specifications Temperature Storage Continuous operation (for altitude less than 950 m or 3117 ft) Fresh air Maximum temperature gradient (operating and storage) Specifications -40-65°C (-40-149°F) 10-30°C (50-86°F) with no direct sunlight on the equipment For information about fresh air, see the Expanded operating temperature section. 20°C/h (36°F/h) Table 34. Relative humidity specifications Relative humidity Storage Operating Specifications 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be noncondensing at all times. 10% to 80% RH with 29°C (84.2°F) maximum dew point. Table 35. Maximum vibration specifications Maximum vibration Specifications Operating Storage 0.26 Grms at 5 Hz to 350 Hz (all operation orientations) 1.88 Grms at 10 Hz to 500 Hz for 15 minutes (all six sides tested) Table 36. Maximum shock pulse specifications Maximum shock pulse Specifications 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 37. Maximum altitude specifications Maximum altitude Operating Storage Specifications 3048 m (10,000 ft) 12,000 m (39,370 ft) Table 38. Operating temperature derating specifications Operating temperature derating Specifications 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 specifications 169

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Table 33. Temperature specifications
Temperature
Specifications
Storage
-40–65°C (-40–149°F)
Continuous operation (for altitude less than 950 m
or 3117 ft)
10–30°C (50–86°F) with no direct sunlight on the equipment
Fresh air
For information about fresh air, see the
Expanded operating temperature
section.
Maximum temperature gradient (operating and
storage)
20°C/h (36°F/h)
Table 34. Relative humidity specifications
Relative humidity
Specifications
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 35. Maximum vibration specifications
Maximum vibration
Specifications
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 36. Maximum shock pulse specifications
Maximum shock pulse
Specifications
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 37. Maximum altitude specifications
Maximum altitude
Specifications
Operating
3048 m (10,000 ft)
Storage
12,000 m (39,370 ft)
Table 38. Operating temperature derating specifications
Operating temperature derating
Specifications
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 specifications
169