Shock; Operating Shock; Nonoperating Shock; Vibration - Seagate ST920210AS Product Manual

2.9.5

Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1

Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 175 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more
than two times per second.
2.9.5.2

Nonoperating shock

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 500 Gs based on a nonrepetitive half-sine shock pulse
of 2 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse
of 1 msec duration.
The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 200 Gs based on a nonrepetitive half-sine shock pulse
of 0.5 msec duration.
2.9.6

Vibration

All vibration specifications assume that the drive is mounted securely with the input vibration applied at the
drive mounting screws. Vibration may be applied in the X, Y or Z axis.
2.9.6.1

Operating vibration

The following table lists the maximum vibration levels that the drive may experience while meeting the perfor-
mance standards specified in this document.
5–350 Hz 0.5 Gs
351-500 Hz 0.25 Gs
2.9.6.2

Nonoperating vibration

The following table lists the maximum nonoperating vibration that the drive may experience without incurring
physical damage or degradation in performance when subsequently put into operation.
10–350 Hz 5.0 Gs
351-500 Hz 1.0 G
LD25 Series 5400.2 Product Manual, Rev. C 13