Dell External OEMR R320 Owner's Manual page 121

Expanded Operating Temperature
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 on
the LCD and in the System Event Log.
< 10% of annual operating hours
< 1% of annual operating hours
Expanded Operating Temperature Restrictions
Environmental
NOTE: For additional information about environmental measurements for specific system configurations, see
dell.com/environmental_datasheets.
Temperature
Maximum Temperature Gradient (Operating and
Storage)
Storage Temperature Limits
Temperature (Continuous Operation)
Temperature Ranges (for altitude less than 950 m or
3117 ft)
Humidity Percentage Range
Relative Humidity
5 °C to 40 °C at 5% to 85% RH with 26 °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 40 °C for a maximum of 10% of its annual
operating hours.
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).
–5 °C to 45 °C at 5% to 90% RH with 26 °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 dry bulb temperature by 1 °C per 125
m above 950 m (1 °F per 228 ft).
• Do not perform a cold startup below 5 °C.
• Allow processor performance degrade.
• Non-redundant power supplies are not
supported.
• Non Dell qualified peripheral cards and/or
peripheral cards are not supported.
20 °C/h (36 °F/h)
–40 °C to 65 °C (–40 °F to 149 °F)
10 °C to 35 °C (50 °F to 95 °F) with no direct sunlight on
the equipment.
10% to 80% Relative Humidity with 26 °C (78.8 °F)
maximum dew point.
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