Dell PowerEdge T550 EMC Technical Specifications - Page 11

Environmental specifications

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Environmental specifications NOTE: For additional information about environmental certifications, refer to the Product Environmental Datasheet located with the Manuals & Documents on www.dell.com/support/home. Table 14. Operational climatic range category A2 Temperature Specifications Allowable continuous operations Temperature ranges for altitudes

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Environmental specifications
NOTE:
For additional information about environmental certifications, refer to the
Product Environmental Datasheet
located
with the Manuals & Documents on
www.dell.com/support/home
.
Table 14. Operational climatic range category A2
Temperature
Specifications
Allowable continuous operations
Temperature ranges for altitudes <= 900 m (<=
2953 ft)
10–35°C (50–95°F) with no direct sunlight on the equipment
Humidity percent ranges (non-condensing at all
times)
8% RH with -12°C minimum dew point to 80% RH with 21°C (69.8°F)
maximum dew point
Operational altitude de-rating
Maximum temperature is reduced by 1°C/300 m (33.8°F/984 Ft) above
900 m (2953 Ft)
Table 15. Operational climatic range category A3
Temperature
Specifications
Allowable continuous operations
Temperature ranges for altitudes <= 900 m (<=
2953 ft)
5–40°C (41–104°F) with no direct sunlight on the equipment
Humidity percent ranges (non-condensing at all
times)
8% RH with -12°C minimum dew point to 80% RH with 24°C (75.2°F)
maximum dew point
Operational altitude de-rating
Maximum temperature is reduced by 1°C/175 m (1.8°F/574 Ft) above 900
m (2953 Ft)
Table 16. Operational climatic range category A4
Temperature
Specifications
Allowable continuous operations
Temperature ranges for altitudes <= 900 m (<=
2953 ft)
5–45°C (41–113°F) with no direct sunlight on the equipment
Humidity percent ranges (non-condensing at all
times)
8% RH with -12°C minimum dew point to 80% RH with 24°C (75.2°F)
maximum dew point
Operational altitude de-rating
Maximum temperature is reduced by 1°C/125 m (1.8°F/410 Ft) above 900
m (2953 Ft)
NOTE:
Certain system hardware configurations may require operating temperatures to be less than 28°C. For more
information, see the Thermal air restrictions section.
Table 17. Shared requirements across all categories
Temperature
Specifications
Allowable continuous operations
Maximum temperature gradient (applies to both
operation and non-operation)
20°C in an hour* (36°F in an hour) and 5°C in 15 minutes (41°F in 15
minutes), 5°C in an hour* (41°F in an hour) for tape
NOTE:
* - Per ASHRAE thermal guidelines for tape hardware, these are
not instantaneous rates of temperature change.
Non-operational temperature limits
-40 to 65°C (-104 to 149°F)
Non-operational humidity limits
5% to 95% RH with 27°C (80.6°F) maximum dew point
Maximum non-operational altitude
12,000 meters (39,370 feet)
Technical specifications
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