Seagate ST33000651AS manual Environmental specifications Ambient temperature, Temperature gradient

www.seagate.com Drive Specifications

2.7Environmental specifications

2.7.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.

Operating	0° to 60°C (32° to 140°F)
Nonoperating *	–40° to 70°C (–40° to 158°F)
* See Section for reliability projections.

2.7.2 Temperature gradient
Operating	20°C per hour (68°F per hour
	max), without condensation
Nonoperating	30°C per hour (86°F per hour
	max)

2.7.3	Humidity
2.7.3.1	Relative humidity
Operating		5% to 95% noncondensing
		(30% per hour max)
Nonoperating		5% to 95% noncondensing
		(30% per hour max)

2.7.3.2Wet bulb temperature

Operating	37.7°C (99.9°F max)
Nonoperating	40°C (104°F max)

2.7.4 Altitude

Operating	–60.96m to 3,048m (–200 ft
	to 10,000+ ft)
Nonoperating	–60.96m to 12,192m (–200 ft
	to 40,000+ ft)

Barracuda XT SATA Product Manual, Rev. D 17