APC 3000VA - Manual (Page 15)

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To reduce UPS sensitivity, press the voltage sensitivity button.
Use a pointed object (such as a pen) to do so. Press the button
once to set sensitivity to reduced. Press it again to set sensitivity to
low. Press the button a third time to reset normal sensitivity. You
also can change the sensitivity level through software.
normal
reduced
low
Brightly lit: UPS is set to normal sensitivity.
Dimly lit: UPS is set to reduced sensitivity.
Off:
UPS is set to low sensitivity.
Low Battery
Warning Level The low battery warning beeps to indicate low on-battery run
time. It beeps periodically (approximately three times per minute)
when less than seven minutes of run time remain. The beeps are
continuous when only two minutes of run time remain.
This may not be enough time to shut down some protected com-
puter systems. To change the warning interval default setting,
press the voltage sensitivity button while pressing and holding the
front-panel button.
2 min.
5 min.
7 min.
Brightly lit: Low battery warning interval is about two minutes.
Dimly lit: Low battery warning interval is about five minutes.
Off:
Low battery warning interval is about seven minutes.
120V Models
Site Wiring
Fault Indicator This indicator illuminates when the UPS is connected to an im-
properly wired AC power outlet.
If the UPS indicates a site wiring fault, get a qualified electrician to correct the
building wiring.
C IRCUIT B REAKERS
Input Circuit
Breaker One 40 Amp input circuit breaker is provided to the right of the
rear connector plug and battery pack connector.
Output Circuit
Breakers Three output circuit breakers are provided.