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990-1060B 12/2005 12
ON BATTERY OPERATION
The UPS switches to battery operation automatically and an internal alarm sounds (periodic beeps) if
the utility power fails. Press the ON button (front panel) to silence the UPS alarm until low battery
(for the current outage only). You can change the audible indicator if you are using PowerChute
software. If the utility power does not return, the UPS continues to supply power to the connected
equipment until exhausted. The UPS will begin to beep continuously approximately two minutes
before final low battery shutdown by default. If you are using a computer, you must manually save
your files and power down before the UPS turns off, unless you are using PowerChute interface
software that provides automatic, unattended shutdown.
UPS battery life differs based on usage and environment. It is recommended that the
battery pack be changed once every three years. See the Run-Time Table for Smart-
UPS RT on the APC website for approximate run times.
USER CONFIGURABLE ITEMS
NOTE: SETTING THESE ITEMS REQUIRES SOFTWARE, OPTIONAL HARDWARE, OR
CONFIGURATION IN TERMINAL MODE.
FUNCTION
F
ACTORY
DEFAULT
USER SELECTABLE
CHOICES
D
ESCRIPTION
Automatic Self-
Test
Every 14 days
(336 hours)
Every 7 days
(168 hours),
On Startup Only,
No Self-Test
This function sets the interval at which the
UPS will execute a self-test. Refer to your
software manual for details.
UPS ID UPS_IDEN Up to eight charac-
ters to define the
UPS
Use this field to uniquely identify the UPS
for network management purposes.
Date of Last Bat-
tery Replacement
Manufacture
Date
Date of Battery
Replacement
Reset this date when you replace the battery
pack.
Minimum Capacity
Before Return from
Shutdown
0 percent 15, 25, 35, 50, 60,
75, 90 percent
The UPS will charge its batteries to the
specified percentage before return from a
shutdown.
Duration of Low
Battery Warning
2 minutes 5, 7, 10, 12, 15, 18,
20 minutes
This function sets the time before shutdown
at which the UPS issues a low battery
warning. Set it higher than the default if the
operating system needs more time for shut-
down.
Alarm Delay After
Line Fail
5 second delay 30 second delay, At
Low Battery Condi-
tion, No Alarm
Set the alarm delay to avoid alarms for
minor power glitches.
Shutdown Delay 20 seconds 0, 60, 120, 240, 480,
720, 960 seconds
This function sets the interval between
when the UPS receives a shutdown com-
mand and when shutdown occurs.