Altitude; Relative Humidity; Acoustics; Shock And Vibration - Seagate ST3780A Product Manual

Medalist Family AT Product Manual, Rev. A

1.8.3 Altitude

Operating
Nonoperating

1.8.4 Relative humidity

Operating
Maximum operating
gradient
Nonoperating

1.9 Acoustics

Sound pressure is measured from 1 meter above the drive top cover at
idle.
Value
Sound pressure, typ (dBA)
Sound pressure, max (dBA)

1.10 Shock and vibration

All shock and vibration specifications assume that the drive is mounted
as recommended in Section 2.6, with the input levels measured at the
drive mounting screws. Shock measurements are based on an 11 msec,
half sine wave shock pulse, not to be repeated more than twice per
second.
During normal operating shock and vibration, there is no physical dam-
age to the drive or performance degradation. During nonoperating shock
and vibration, the read/write heads are positioned in the shipping zone.
–1,000 ft to 10,000 ft (–305 m to 3,048 m)
–1,000 ft to 40,000 ft (–305 m to 12,192 m)
8% to 80% noncondensing
Maximum wet bulb 26 ° C (79 ° F)
10% per hour
5% to 95% noncondensing
Maximum wet bulb 26 ° C (79 ° F)
Idle Seek
30 36
33 39
7