Seagate ST251 - Relative Humidity; Altitude Limits; S Shock and Vibration Specifications; Operating Vibration

1.8.3 RELATIVE HUMIDITY
Operating:
Maximum Wet
Bulb:
Nonoperati ng:
8 to
80% noncondensing
26°C (78.8°F)
5 to 90% noncondensing
1.8.4 ALTITUDE LIMITS
Operating: -1,000 ft to 10,000 ft
Nonoperati ng:
-1,000 ft to 30.000 ft
1.8.5 SHOCK AND VIBRATION SPECIFICATIONS
All shock and vibration specifications assume that the drive is mounted
in an approved orientation with the input
levels at the drive mounting
screws.
Shock measurements are based on a
11 msec. half-si ne wave shock
pulse. The nonoperating specifications assume that the read/write
heads are positioned in the shipping zone.
1.8.5.1 OPERATING SHOCK
Maximum shock without incurring physical damage or degradation in
performance:
10 G's.
1.8.5.2 OPERATING VIBRATION
Maximum vibration, at the following frequencies, without incurring
physical damage or degradation in performance:
1-6
Freq.
5-22 Hz:
22-300 Hz:
300-22 Hz:
22-5
Hz:
Vibration
0.010 in. Displacement (double amplitude)
0.25 G Acceleration (peak)
0.25 G Acceleration (peak)
0.010 in. Displacement (double amplitude)
ST251/251 RI277R Product Manual, Rev.A