Notes:
• The chart is shown in SI (metric) units and a barometric pressure of 101.325 kPa (sea level).
• The recommended operating environment species a long-term operating environment that can result
in the greatest reliability and energy efîš´ciency.
• The allowable operating environment represents where the equipment has been tested to verify
functionality.
Figure 20. Psychrometric chart showing recommended and allowable operating environments for the tape
library
Table 19. Equipment environment speciîš´cations for the TS1170 drive model
Product operation (equipment is powered on) Product power off
1
Dry-bulb temperature Humidity range, non-condensing
Maximum elevation Dry-bulb temperature Relative humidity
Allowable/
Recommended
3
Maximum rate of
change
Allowable/
Recommended
Maximum rate of
change
15 to 25°C
(60 to 77°F)
5°C/hour
(9°F/hour)
20% to 50% RH
5% RH/hour
4
with no
condensation
3050 m (10,000feet)
5 to 45°C
(40 to 113°F)
8% to 50% RH
Notes:
1. Product equipment is removed from the original shipping container and installed but not in use - for example, during repair, maintenance, or upgrade.
2. Derate maximum dry-bulb temperature 1°C/300 m above 900 m (1.8°F/1,000 feet above 3,000 feet).
3. Derate maximum recommended dry-bulb temperature 1°C/300 m above 1,800 m (1.8°F/1,000 feet above 6,000 feet).
4. Changes of up to 30% RH in 5 minutes are allowed as long as the 20% to 50% absolute limits are not exceeded.
IBM Conîš´dential
30IBM TS4300 Tape Library Machine Type 3555: User's Guide
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