Standard Operating Temperature; Expanded Operating Temperature - Dell EMC PowerEdge R440 Installation And Service Manual

Particulate contamination
Corrosive dust
Table 28. Gaseous contamination specifications
Gaseous contamination
Copper coupon corrosion rate
Silver coupon corrosion rate
NOTE: Maximum corrosive contaminant levels measured at ≤50% relative humidity.

Standard operating temperature

Table 29. Standard operating temperature specifications
Standard operating temperature
Continuous operation (for altitude less than 950 m or 3117
ft)

Expanded operating temperature

Table 30. Expanded operating temperature specifications
Expanded operating temperature
Continuous operation
≤ 1% of annual operating hours
NOTE: When operating in the expanded temperature range, system performance may be impacted.
30 Technical specifications
Specifications
• Air must be free of corrosive dust.
• Residual dust present in the air must have a deliquescent point less than
60% relative humidity.
NOTE: This condition applies to data center and non-data center
environments.
Specifications
<300 Å/month per Class G1 as defined by ANSI/ISA71.04-1985.
<200 Å/month as defined by AHSRAE TC9.9.
Specifications
10°C to 35°C (50°F to 95°F) with no direct sunlight on the equipment.
Specifications
5°C to 40°C at 5% to 85% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C to
40°C), the system can operate continuously in temperatures as low
as 5°C and as high as 40°C.
For temperatures between 35°C and 40°C, de-rate maximum allowable
temperature by 1°C per 175 m above 950 m (1°F per 319 ft).
–5°C to 45°C at 5% to 90% RH with 29°C dew point.
NOTE: Outside the standard operating temperature (10°C to
40°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 and 45°C, de-rate maximum allowable
temperature by 1°C per 125 m above 950 m (1°F per 228 ft).