Dell PowerEdge MX740c EMC PowerEdge MX740c Installation and Service Manual - Page 125

Particulate and gaseous contamination specifications, Table 20. Temperature specifications

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Table 20. Temperature specifications Temperature Specifications Storage -40°C to 65°C (-40°F to 149°F) Continuous operation (for altitude less than 950 m or 10°C to 35°C (50°F to 95°F) with no direct sunlight on the 3117 ft) equipment. Maximum temperature gradient (operating and storage) 20°C/h (68°F/h) Table 21. Relative humidity specifications Relative humidity Storage Operating Specifications 5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere must be noncondensing always. 10% to 80% relative humidity with 29°C (84.2°F) maximum dew point. Table 22. Maximum vibration specifications Maximum vibration Operating Storage Table 23. Maximum shock specifications Maximum shock Operating Storage Specifications 0.26 Grms at 5 Hz to 350 Hz (all operation orientations). 1.87 Grms at 10 Hz to 500 Hz for 15 min (all six sides tested). Specifications Six consecutively executed shock pulses in the positive and negative x, y, and z axes of 6 G for up to 11 ms. Six consecutively executed shock pulses in the positive and negative x, y, and z axes (one pulse on each side of the system) of 71 G for up to 2 ms. Table 24. Maximum altitude specifications Maximum altitude Operating Storage Specifications 3048 m (10,000 ft) 12,000 m (39,370 ft) Table 25. Operating temperature derating specifications Operating temperature derating Specifications Up to 35°C (95°F) Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 m (3,117 ft). 35°C to 40°C (95°F to 104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 m (3,117 ft). 40°C to 45°C (104°F to 113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 m (3,117 ft). Particulate and gaseous contamination specifications The following table defines the limitations that help avoid any equipment damage or failure from particulates and gaseous contamination . If the levels of particulates or gaseous pollution exceed the specified limitations and result in equipment damage or failure, you may must rectify the environmental conditions. Remediation of environmental conditions is the responsibility of the customer. Technical specifications 125

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Table 20. Temperature specifications
Temperature
Specifications
Storage
–40°C to 65°C (–40°F to 149°F)
Continuous operation (for altitude less than 950 m or
3117 ft)
10°C to 35°C (50°F to 95°F) with no direct sunlight on the
equipment.
Maximum temperature gradient (operating and
storage)
20°C/h (68°F/h)
Table 21. Relative humidity specifications
Relative humidity
Specifications
Storage
5% to 95% RH with 33°C (91°F) maximum dew point. Atmosphere
must be noncondensing always.
Operating
10% to 80% relative humidity with 29°C (84.2°F) maximum dew
point.
Table 22. Maximum vibration specifications
Maximum vibration
Specifications
Operating
0.26 G
rms
at 5 Hz to 350 Hz (all operation orientations).
Storage
1.87 G
rms
at 10 Hz to 500 Hz for 15 min (all six sides tested).
Table 23. Maximum shock specifications
Maximum shock
Specifications
Operating
Six consecutively executed shock pulses in the positive and negative x,
y, and z axes of 6 G for up to 11 ms.
Storage
Six consecutively executed shock pulses in the positive and negative x,
y, and z axes (one pulse on each side of the system) of 71 G for up to
2 ms.
Table 24. Maximum altitude specifications
Maximum altitude
Specifications
Operating
3048 m (10,000 ft)
Storage
12,000 m (39,370 ft)
Table 25. Operating temperature derating specifications
Operating temperature derating
Specifications
Up to 35°C (95°F)
Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above
950 m (3,117 ft).
35°C to 40°C (95°F to 104°F)
Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above
950 m (3,117 ft).
40°C to 45°C (104°F to 113°F)
Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above
950 m (3,117 ft).
Particulate and gaseous contamination specifications
The following table defines the limitations that help avoid any equipment damage or failure from particulates and gaseous
contamination . If the levels of particulates or gaseous pollution exceed the specified limitations and result in equipment damage
or failure, you may must rectify the environmental conditions. Remediation of environmental conditions is the responsibility of
the customer.
Technical specifications
125