Altitude; Shock And Vibration Specifications; Operating Shock; Operating Vibration - Seagate ST251N Product Manual

1. 7 .4 ALTITUDE
Operating: -1,000 ft to 10,000 ft
Nonoperating: -1,000 ft to 30,000 ft
1.8 SHOCK AND VIBRATION SPECIFICATIONS
All shock and vibration measurements assume that the drive is
mounted in an approved orientation with the input levels at the drive
mounting screws.
Shock measurements are based on an 11 msec. half-sine wave shock
pulse. The nonoperating specifications assume that the read/write
heads are positioned in the shipping zone.
1.8.1 OPERATING SHOCK
Maximum permitted shock without incurring physical damage or deg-
radation in performance: 10 G's
1.8.2 OPERATING VIBRATION
Maximum permitted vibration at the following frequencies, without in-
curring physical damage or degradation in performance:
Frequency
5-22 Hz
22-300 Hz
300-22 Hz
22-5 Hz
Vibration
0.010 in. double amplitude
0.25 G peak amplitude
0.25 G peak amplitude
0.010 in. double amplitude
1.8.3 NONOPERATING SHOCK
Maximum permitted shock without incurring physical damage or deg-
radation in performance: 40 G's
1-4 ST251 N/277N Product Manual, Rev. B