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Table 26 details the environmental specifications for the R420. For the most up-to-date information,
Dell PowerEdge R420 Systems Owner's Manual
see the
Started Guide
on Support.Dell.com/Manuals. For additional information about environmental
measurements for specific system configurations, see www.dell.com/environmental_datasheets.
Temperature
Continuous
10°C to 35°C at 10% to 80% relative humidity (RH), with 26°C max dew point. De-rate
operation
maximum allowable dry bulb temperature at 1°C per 300m above 900m (1°F per 550 ft).
Expanded
10% of annual operating hours: 5°C to 40°C, 5% to 85% RH with 26°C dew point. For
operation
temperatures between 35°C and 40°C, the de-rate maximum allowable dry bulb
temperature is 1°C/175 m above 950 m (1°F per 319 ft).
1% of annual operating hours: –5°C to 45°C, 5% to 90% RH with 26°C dew point. For
temperatures between 40°C and 45°C de-rate maximum allowable dry bulb temperature
is 1°C/125 m above 950 m (1°F per 228 ft).
Restrictions:
No cold startup below 5°C.
Maximum altitude of 3050 m (10,000 ft).
Redundant PSU configuration required.
o
Storage
–40
C to 65
Relative humidity
Operating
20% to 80% (noncondensing) at a maximum wet bulb temperature of 29°C (84.2°F)
Storage
5% to 95% at a maximum wet bulb temperature of 38°C (100.4°F)
Maximum vibration
Operating
0.26 Grms at 5-350Hz in all orientations
Storage
1.87 Grms at 10-500Hz for 15 min (all six sides tested)
Maximum shock
Operating
Half sine shock in all operational orientations of 31G +/– 5% with a pulse duration of
2.6 ms +/– 10%
Storage
Half sine shock on all six sides of 71G +/– 5% with a pulse duration of 2 ms +/–10%;
square wave shock on all six sides of 27G with velocity change at 235 in/sec or greater
Altitude
Operating
–15.2m to 3048m (–50 to 10,000 ft); for altitudes above 2950 ft, the maximum operating
temperature is de-rated 1
Storage
–15.2m to 10,668m (–50 to 35,000 ft)
Airborne contaminant level
Class G2 or lower as defined by ISA-S71.04-1985
o
o
o
C (-40
F to 149
F) with a maximum temperature gradation of 20
o
F/550 ft
Dell PowerEdge R420 Getting
and the
o
C per hour