Temperature And Humidity; Cooling; Table 2-11. Temperature And Humidity; Table 2-12. Maximum & Reliability Operating Temperature Limits - Western Digital WDE4360 Technical Reference Manual

Specifications

2.5.2. Temperature and Humidity

Temperature and Humidity
Operating
Temperature
Humidity
Thermal Gradient
Non-Operating
Temperature
Humidity
Thermal Gradient
1
The system environment must provide sufficient air flow to limit maximum
surface temperatures as defined in Table 2-12.

2.5.3. Cooling

Drive component temperatures must remain within the limits specified in Table 2-12.
Figure 2-7 and Figure 2-8 show the temperature measurement locations. Sustained
operation at temperatures in excess of the reliability values degrades the MTBF rating.
Short excursions up to, but not exceeding, the maximum values do not affect the MTBF
rating. Maximum component temperature ratings must not be exceeded under any
operating condition. The drive may require forced air cooling to meet specified
operating temperatures.
Table 2-12. Maximum & Reliability Operating Temperature Limits
Component
Drive Baseplate
64C96
1
Sustained operation at temperatures in excess of the reliability values degrades the MTBF
rating.
16

Table 2-11. Temperature and Humidity

1
Location
#1, Figure 2-7.
4915 #2, Figure 2-8.
#3, Figure 2-8.
2298 #4, Figure 2-8.
1501 #5, Figure 2-8.
RELEASED 04-08-97
WD Enterprise WDE2170/WDE4360
5°C to 55°C (41°F to 131°F)
10-90% RH non-condensing
33°C (maximum wet bulb)
10°C/hour (maximum)
-40°C to 60°C (-40°F to 140°F)
5-95% RH non-condensing
33°C (maximum wet bulb)
20°C/hour (maximum)
Maximum
65 C (149 F)
95 C (203 F)
80 C (176 F)
80 C (176 F)
85 C (185 F)
1
Reliability
55 C (131 F)
80 C (176 F)
65 C (149 F)
65 C (149 F)
70 C (158 F)
4079-001045 Rev. B