Vibration And Shock Tolerances; Table 5.21 Vibration And Shock Tolerances - Hitachi 9900 User And Reference Manual

5.7.5

Vibration and Shock Tolerances

Table 5.21 lists the vibration and shock tolerance data for the 9900 subsystem. The 9900 can
be subjected to vibration and shock up to these limits and still perform normally. The user
should consider these requirements if installing the 9900 near large generators located on
the floor above or below the 9900 subsystem. Generators or any other source of vibration, if
not insulated or shock-mounted, can cause excessive vibration that may affect the
subsystem.
Table 5.21 Vibration and Shock Tolerances
Condition Operating
Vibration 0.01" (0.25 mm), 5~10 Hz
0.05
Shock
—-
*1: See ASTM D999-86, Standard Methods for Vibration Testing of Shipping Containers.
*2: See ASTM D880-86, Standard Methods of Incline Impact Test for Shipping Containers.
*3: See ASTM D775-80, Standard Methods for Drop Test for Loaded Boxes.
g = acceleration equivalent to gravity (9.8 m/sec
114 Chapter 5 Planning for Installation and Operation
Nonoperating
0.1" (2.5 mm), 5~10 Hz
g , 10~300 Hz 0.5 g , 10 to 70 Hz
0.002" (0.05 mm), 70~99 Hz
g
1.0 , 99 to 300 Hz
g
8 , 15 ms
Shipping or Storage
g
0.5 , 15 min. *1
At four most severe resonance frequencies
between 5 to 200 Hz
Horizontal: Incline Impact 4 ft (1.22 m) *2
Vertical: Rotational Edge 0.3 ft (0.1 m) *3
2
)