2.9Environmental specifications

2.9.1Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 65°C (149°F) within the operating ambient conditions.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.

Operating

0° to 60°C (32° to 140°F)

 

 

Nonoperating

–40° to 70°C (–40° to 158°F)

 

 

2.9.2Temperature gradient

Operating

20°C per hour (68°F per hour) max, without condensation

 

 

Nonoperating

30°C per hour (86°F per hour) max

 

 

2.9.3Humidity

2.9.3.1Relative humidity

Operating

8% to 90% noncondensing (30% per hour) max

 

 

Nonoperating

5% to 95% noncondensing (30% per hour) max

 

 

2.9.3.2Wet bulb temperature

Operating

30°C

(86°F) max

 

 

 

Nonoperating

40°C

(104°F) max

 

 

 

2.9.4Altitude

Operating

–304.8 m to 3,048 m (–1,000 ft to 10,000 ft)

 

 

Nonoperating

–304.8 m to 12,192 m (–1,000 ft to 40,000 ft)

 

 

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LD25 Series 5400.2 Product Manual, Rev. C

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Seagate ST980210AS, ST960210AS, ST940210AS, ST920210AS manual Environmental specifications