Dell PowerEdge C6400 EMC Installation and Service Manual - Page 33

Expanded operating temperature specifications Table 16. Expanded operating temperature Expanded operating temperature Specifications Continuous operation 5°C-40°C at 5% to 85% RH with maximum 29°C dew point. NOTE: Outside the standard operating temperature (10°C-35°C), the system can operate continuously in temperatures as low as 5°C and as high as 40°C. ≤ 1% of annual operating hours For temperatures between 35°C and 40°C, derate maximum allowable temperature by 1°C per 175 m above 950 m (1°F per 319 ft). -5°C-45°C at 5% to 90% RH with maximum 29°C dew point. NOTE: Outside the standard operating temperature (10°C-35°C), the system can operate down to -5°C or up to 45°C for a maximum of 1% of its annual operating hours. For temperatures between 40°C-45°C, derate maximum allowable temperature by 1°C per 125 m above 950 m (1°F per 228 ft). NOTE: When operating in the expanded temperature range, system performance may be impacted. NOTE: When operating in the expanded temperature range, ambient temperature warnings may be reported in the System Event Log. Operating temperature derating specifications Table 17. Operating temperature Operating temperature derating < 35°C (95°F) Specifications Maximum temperature is reduced by 1°C/300 m (1°F/547 ft) above 950 meters (3,117 ft). 35°C-40°C (95°F-104°F) Maximum temperature is reduced by 1°C/175 m (1°F/319 ft) above 950 meters (3,117 ft). > 45°C (113°F) Maximum temperature is reduced by 1°C/125 m (1°F/228 ft) above 950 meters (3,117 ft). Relative humidity specifications Table 18. 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. Temperature specifications Table 19. Temperature specifications Temperature Storage Specifications -40°C-65°C (-40°F to 149°F) Technical specifications 33