Environmental Requirements - Seagate STT20000A Product Manual

Specifications

Environmental requirements

STT20000A Product Manual
The following table lists the environmental specifications for the STT20000A. The
drive may be mounted either vertically or horizontally.
Specification
Temperature
Thermal gradient
Relative humidity
Maximum wet bulb temperature 78.8° F (26° C)
Altitude
Vibration
Peak to Peak
Displacement
Peak Acceleration
Acoustic level operational
(A-wt sum)
Shock (1/2 sine wave)
1 Specification applies to drive mechanism and media
2
Specification applies to drive mechanism only
Operational
1
1 t
+4 ° o +113° F
(+ 5° to + 45° C)
1° C per minute
(no condensation)
20% to 80%
1
non-condensing
–1000 to +15,000 feet
0.005 in. max.
(5 to 44.3 Hz)
0.50 g max.
(44.3 to 500 Hz)
55 dBA maximum
(measured in suitable
enclosure at 3-ft distance
and operator height)
2.5 g's peak, 11 msec
Chapter 2
Non-operational
o 2
–40° to +149 F
o
(–40° to + 65 C)
20° C per hour
5% to 95%
2
non-condensing
No condensation
–1000 to +50,000 feet
0.1 in. max.
(5 to 17 Hz)
1.5 g max.
(17 to 500 Hz)
—
100 g's peak, 11 msec
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