Seagate ST36450A, Product Manual

Page: 20 / 52

1.13.2 Temperature gradient
Operating 20
°
C per hour (36
°
F per hour)
Nonoperating 25
°
C per hour (45
°
F per hour)
1.13.3 Altitude
Operating –1,000 ft. to 10,000 ft. (–305 m to 3,048 m)
Nonoperating –1,000 ft. to 40,000 ft. (–305 m to 12,192 m)
1.13.4 Relative humidity
Operating 8% to 80% noncondensing
Maximum wet bulb 29.4
°
C (85
°
F)
Maximum operating
gradient
10% per hour
Nonoperating 5% to 95% noncondensing
Maximum wet bulb 35
°
C (95
°
F)
1.14 Shock and vibration
All shock and vibration specifications apply when the drive is mounted
as recommended in Section 2.5 on page 22, with the input levels
measured at the drive mounting screws. Shock measurements are based
on an 11 msec, half sine wave shock pulse, not to be repeated more than
twice per second.
During normal operating shock and vibration, there is no physical dam-
age to the drive or performance degradation. During nonoperating shock
and vibration, the read/write heads are positioned in the landing zone.
During abnormal operating shock and vibration, there is no physical
damage to the drive, although performance may be degraded during the
shock or vibration episode. When normal operating shock levels resume,
the drive meets its performance specifications.
Operating Abnormal Nonoperating
Shock 2 Gs 10 Gs 75 Gs
5–22 Hz vibration 0.020-inch
displacement
—
0.081-inch
displacement
22–350 Hz vibration 0.50 Gs — 2.00 Gs
12 Medalist Pro 6450/6451 Product Manual, Rev. B