Relative Humidity; Shock And Vibration; Acoustics - Seagate MEDALIST 1080SL Product Manual

10 Medalist 1080sl SCSI Product Manual, August 1995

1.8.4 Relative humidity

Operating
Operating gradient, max
Nonoperating

1.9 Shock and vibration

All shock and vibration specifications assume that the inputs are 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 abnormal operating shock and vibration, there is no physical
damage to the drive, although performance may be degraded during the
shock or vibration episode. When normal operating shock levels resume,
the drive meets its performance specifications.
During nonoperating shock and vibration, the read/write heads are
positioned in the shipping zone.
Normal
operating
Shock 2 Gs
5–22 Hz vibration 0.020-inch
displacement
22–350 Hz vibration 0.50 Gs

1.10 Acoustics

Sound pressure is measured at idle from 1 meter above the drive top
cover.
Idle
Sound pressure, typ 30 dBA
Sound pressure, max 34 dBA
8% to 80% noncondensing
Maximum wet bulb 29.4°C (84.9°F)
10% per hour
5% to 95% noncondensing
Maximum wet bulb 35°C (95.0°F)
Abnormal
operating
10 Gs
0.030-inch
displacement
0.75 Gs
Seek
34 dBA
38 dBA
Nonoperating
75 Gs
0.160-inch
displacement
4.00 Gs