1.
7 .4 Altitude
Operating:
-1,000ftto
10,000ft
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 nonoperatlng specifications assume that the read/write heads
are positioned in the shipping zone at the inside diameter of the disc.
1.8.1
Operating Shock
Maximum permitted shock without incurring physical damage
or
degradation in performance: 1 O G's
1.8.2 Operating Vibration
Maximum permitted vibration at the following frequencies, without incur-
ring physical damage or degradation in performance:
Frequency
5-22 Hz
22-300Hz
300-22Hz
22-5 Hz
1.8.3 Nonoperating Shock
Vibration
0.020 in. double amplitude
0.5 G peak amplitude
0.5 G peak
amplitude
0.020 in. double amplitude
Maximum permitted shock without incurring
physical damage
or
degradation in performance: 60 G's
ST125N/138N/157N Product
Manual, Rev. C
5