HP L1000 - 9000 - 0 MB RAM, User Manual

Page: 204 / 231

Appendix B
System Specifications
Temperature and Humidity Operating Standards
190
Temperature and Humidity Operating Standards
The following table lists the temperature and humidity specifications for rp54xx servers.
NOTE Operating ranges refer to the ambient air temperature and humidity measured at the cabinet
cooling air intake vents.
Thermal Protection Features
If the cabinet temperature approaches 35
o
C, thermal protection will be invoked. At 35
o
C +/- 2
o
C a warning
message will be displayed on the system console. At 40
o
C +/- 2
o
C an ungraceful shutdown will occur.
Temperature and Humidity Specifications
Parameter
Operational
Limits
Recommended
Operating
Range
Maximum
Rate of Change
(per hour)
Non-Operating
Ranges
Temperature
a
a. The rp54xx has been designed to operate within the above specific temperature and relative
humidity operational limits. In general, operating any electronic equipment within the
recommended ranges of temperature and humidity will produce optimal reliability.
5
o
C to 35
o
C
(41
o
F to 95
o
F)
b
b. Temperature ranges stated above are at sea level. Maximum operating temperature is
derated (reduced) by 2
o
C for each 1000 meters above sea level up to a maximum of 3000
meters.
20
o
C to 25
o
C
(68
o
F to 77
o
F)
10
o
C (50
o
F) per
hour (With tape
media)
20
o
C (68
o
F) per
hour (Without
tape media)
-40
o
C to +70
o
C
(-40
o
F to +158
o
F)
Operating
Humidity 15 to 80%
Relative
humidity
(Non-condensing)
at 35
o
C (95
o
F)
40 to 60%
Relative
humidity
(Non-condensing) 30% Per hour
Relative humidity
(Non-condensing) 90% Relative
humidity
(Non-condensing)
at 65
o
C (149
o
F)