Seagate ST760211DE manual Environmental specifications

2.8Environmental specifications

2.8.1Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 70°C (158°F) within the operating ambient conditions. Case temperature of the drive operating at 60°C ambient may hit a maximum of 70°C at certain parts of the casing.

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

Operating	0° to 60°C (32° to 140°F)	(70°C max case temperature)
Nonoperating	–40° to 70°C (–40° to 158°F)

2.8.2Temperature gradient

Operating	20°C per hour (36°F per hour max), without condensation
Nonoperating	30°C per hour (54°F per hour max), without condensation

2.8.3Humidity

2.8.3.1Relative humidity

Operating	5% to 90% noncondensing (30% per hour max)
Nonoperating	5% to 95% noncondensing (30% per hour max)

2.8.3.2Wet bulb temperature

Operating	33°C	(91.4°F max) [1]
Nonoperating	40°C	(104°F max) [2]

[1]Operating: Wet bulb temperature is calculated by the operating Temperature and the Relative Humidity levels.

[2]Nonoperating: Wet bulb temperature is calculated by the nonoperating Temperature and the Relative Humidity levels.

2.8.4Altitude

Operating	–60.98 m to 3,048 m (–200 ft to 10,000+ ft)
Nonoperating	–60.98 to 12,192 m (–200 ft to 40,000+ ft)

10 Lyrion Series IDE Product Manual, Rev. B