Dell MD1280 manual

Page 30

Environmental

NOTE: For more information about environmental measurements for specific system

configurations, see dell.com/environmental_datasheets.

Temperature

 

Operating

5° to 35°C (41° to 95°F) with a maximum

 

temperature gradation of 10°C per hour

 

NOTE: Maximum 35°C up to 2134 m (7000 ft),

 

derate to 30°C for 2134 m to 3000 m (7000 ft

 

to 10,000 ft).

Storage

–40° to 70°C (–40° to 158°F) with a maximum

 

temperature gradation of 20°C an hour

Relative humidity

 

Operating

20 percent to 80 percent (noncondensing) with a

 

maximum humidity gradation of 10 percent an

 

hour

Storage

5 percent to 100 percent (noncondensing)

Maximum vibration

 

Operating

0.21 g at 5–500 Hz for 15 min

Storage

1.04 g at 2–200 Hz for 15 min

Maximum shock

 

Operating

Half-sine shock 5 g +/- 5 percent with a pulse

 

duration of 10 ms +/- 10 percent in operational

 

orientations only

Storage

z-axis: 30 g 10 ms half-sine

 

x-axis and y-axis: 20 g 10 ms half-sine

Altitude

 

Operating

–30.5 to 3000 m (–100 to 10,000 ft)

 

NOTE: Maximum 35°C up to 2134 m (7000 ft),

 

derate to 30°C for 2134 m to 3000 m (7000 ft

 

to 10,000 ft).

Storage

–300 m to 12,192 m (–1000 ft to 40,000 ft)

Airborne Contaminant Level

 

Class

G2 or lower as defined by ISA-S71.04-1985

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Contents Dell Storage MD1280 Service Guide Page Contents Technical specifications Contacting Dell Dell Storage MD1280 overview About the Dell Storage MD1280 Service GuideFront-panel features and indicators Dell Storage MD1280 hardwareFront-panel features and indicators Back-panel features and indicators EMM features and indicators Back-panel features and indicatorsFan module features and indicators O EMM features and indicatorsPSU features and indicators Fan module features and indicatorsDdic indicator Ddic indicatorDdic indicator General safety precautions Safety precautionsElectrical safety precautions Replacing Dell Storage MD1280 componentsPre-replacement tasks Replacing PSUsRemoving a PSU Replacing fan modules Identifying the failed fan moduleReplacing a fan module Replacing hard drives Numbering the hard driveIdentifying the failed hard drive Replacing hard drivesOpening a Ddic Ddic Replacing I/O EMM modules Closing a drive drawerIdentifying the failed EMM Replacing an EMMReplacing chassis Replacing rack railsPost-replacement tasks Turning on the EMMs and enclosureTroubleshooting PSUs Troubleshooting Dell Storage MD1280 componentsTroubleshooting fan modules Troubleshooting DDICsTroubleshooting I/O EMMs Technical specifications PSU Physical Depth front mounting bracket to rear surface Page Page Contacting Dell