Fujitsu MAN3367FC - Enterprise 36.7 GB Hard Drive, Product/Maintenance Manual

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4.1 Mounting Requirements
C141-E133-02EN 4-5
(3) Limitation of bottom-mounting
Use all 4 mounting holes on the bottom face.
(4) Environmental temperature
Temperature condition at installed in a cabinet is indicated with ambient temperature measured 3 cm
from the disk drive. At designing the system cabinet, consider following points.
•
Make a suitable air flow so that the DE surface temperature does not exceed 55°C.
•
Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling effect
by measuring temperature of specific ICs and the DE. These measurement results should be
within a criteria listed in Table 4.1.
•
Keeping the DE surface temperature at 40
°
C or lower, which is a condition for assuring an
MTBF of 1,200,000 hours, requires an air flow of 1.0 m/s.
Table 4.1 Surface temperature check point
No. Measurement point Criteria
1 Center of DE cover 55°C
2 Read channel LSI 90°C
3 VCM/SPM Driver 92°C
4 HDC 95°C
5 MPU 88°C
Figure 4.5 Surface temperature measurement points
1
2
4
5
3