Environmental Specifications; Shock And Vibration; Table 2-4 Shock And Vibration - Western Digital Re EX800M Technical Reference Manual

EX800M
2.5

Environmental Specifications

2.5.1
Table 2-4. Shock and Vibration
Shock
Operating
Non-operating (2 ms)
Note: Half-sine wave, measured without shock isolation and without non-recoverable errors.
Rotational Shock Non-Operating
Amplitude
Duration
Vibration
Operating
Non-operating
Rotational Vibration
12.5 rad/sec
Operating Vibration
Drives are tested by applying a random excitation in each linear axis, one axis at a time. The drive
incurs no physical damage and no hard errors while subjected to continuous vibration not exceeding
the level listed in Table 2-4. Operating performance may degrade during periods of exposure to
continuous vibration.
Non-Operating Vibration
Note: This specification applies to handling and transportation of unmounted drives.
Drives are tested by applying a random excitation in each linear axis, one axis at a time. The drive
incurs no physical damage when subjected to continuous vibration not exceeding the level listed in
Table 2-4.
Packaged Shock and Vibration
The shipping packaging is designed to meet the National/International Safe Transit Association (N/
ISTA) standards for packaged products. The drive incurs no physical damage when subjected to the N/
ISTA standards.
2679-771339-A05

Shock and Vibration

30G, 2 ms (read/write)
65G, 2 ms (read)
300G
2
20K rad/sec
2 ms
Swept Sine: 20-300 Hz, 0.75G (0 to peak)
Sweep Rate: 0.25 octave/minute minimum
2
Random: 0.004 g
Swept Sine: 20-500 Hz, 4.0G (0 to peak)
Sweep Rate: 0.5 octave/minute minimum
2
Random: 0.05 g /Hz (10-300 Hz)
2
based on the following PSD profile maintaining <20% performance degradation:
Frequency (Hz)
2 2
(Rad/sec ) /Hz
RELEASED 8/13/13
/Hz (10-300 Hz)
20 200 300
0.035 0.035 0.2
Specifications
900 1400 2000
0.2 0.002 0.002
13