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Table 32 Particulate contamination specifications (continued)
Particulate contamination Specifications
Note: Air entering the data center must have
MERV11 or MERV13 filtration.
Conductive dust Air must be free of conductive dust, zinc whiskers,
or other conductive particles.
Note: This condition applies to data center and
non-data center environments.
Corrosive dust
l
Air must be free of corrosive dust.
l
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.
The copper coupon corrosion rate is <300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985. The silver coupon corrosion rate is <200 Å/month as defined by AHSRAE TC9.9.
Table 33 Gaseous contamination specifications
Gaseous contamination Specifications
Copper coupon corrosion rate <300 Å/month per Class G1 as defined by ANSI/
ISA71.04-1985.
Silver coupon corrosion rate <200 Å/month as defined by AHSRAE TC9.9.
Note: Maximum corrosive contaminant levels measured at ≤50% relative humidity.
Expanded operating temperature
When the system is at 10% of annual operating hours, the expanded operating temperature ranges
from 5°C to 40°C at 5% to 85% RH with 29°C dew point. NOTE: Outside the standard operating
temperature (10°C to 35°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 dry
bulb temperature by 1°C per 175 m above 950 m (1°F per 319 ft). When the system is operating at
< 1% of annual operating hours, the expanded operating temperature is –5°C to 45°C at 5% to
90% RH with 29°C dew point. NOTE: Outside the standard operating temperature (10°C to
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 and 45°C, de-rate maximum allowable
temperature by 1°C per 125 m above 950 m (1°F per 228 ft).
Table 34 Expanded operating temperature specifications
Expanded operating temperature Specifications
Continuous operation 5°C to 40°C at 5% to 85% RH with 29°C dew
point.
Note: Outside the standard operating
temperature (10°C to 35°C), the system can
operate continuously in temperatures as low as
5°C and as high as 40°C.
Technical specifications
Dell PowerEdge R430 Owner's Manual 49