Tripp-Lite SmartPro SLT Seerie Manuel Du Propriétaire page 6

Basic Operation
continued
Indicator Lights (Front Panel)
All Indicator Light descriptions apply when the UPS is plugged into a wall outlet
and turned ON.
"POWER" LED: this green LED lights continuously when the UPS is ON and
supplying connected equipment with AC power from a utility source. The LED
flashes and an alarm sounds (4 short beeps followed by a pause) to indicate the
UPS is operating from its internal batteries during a blackout or severe
brownout. If the blackout or severe brownout is prolonged, you should save
files and shut down your equipment since internal battery power will eventual-
ly be depleted. See "BATTERY CHARGE" LED description below.
"VOLTAGE CORRECTION" LED: this green LED lights continuously
whenever the UPS is automatically correcting high or low AC voltage on the
utility line without the assistance of battery power. The UPS will also emit a
slight clicking noise. These are normal, automatic operations of the UPS, no
action is required on your part.
"OUTPUT LOAD LEVEL" LED: this stack of 3 LEDs (green, yellow, red)
indicates the approximate electrical load of equipment connected to the UPS's
AC outlets. It will turn from green (light load) to yellow (medium load) to red
(overload). If the LED is red (either illuminated continuously or flashing), clear
the overload immediately by unplugging some of your equipment from the out-
lets until the LED changes from red to yellow (or green). CAUTION! Any over-
load that is not corrected by the user immediately may cause the UPS to shut
down and cease supplying output power in the event of a blackout or brownout.
"BATTERY CHARGE" LED: when the UPS is operating from utility power,
this stack of 3 LEDs (green, yellow, red) indicates the approximate charge state
of the UPS's internal batteries: red indicates the batteries are beginning to
charge; yellow indicates the batteries are roughly midway through charging; and
green indicates the batteries are fully charged. When the UPS is operating from
battery power during a blackout or severe brownout, these LEDs indicate the
approximate amount of energy (ultimately affecting runtime) which the UPS's
batteries will provide: red indicates a low level of energy; yellow indicates a
medium level of energy; and green indicates a high level of energy. Since the
runtime performance of all UPS batteries will gradually deplete over time, it is
recommended that you periodically perform a self-test (see MUTE/TEST Button
description) to determine the energy level of your UPS batteries BEFORE a
blackout or severe brownout occurs. During a prolonged blackout or severe
brownout, you should save files and shut down your equipment since battery
power will eventually be depleted. When the red LED is lit and an alarm sounds
continuously, it indicates the UPS's batteries are nearly out of power and UPS
shut down is imminent.
"BATTERY WARNING" LED: this LED lights yellow and an alarm sounds
intermittently after you initiate a self test (See "MUTE/TEST" Button description)
to indicate the UPS batteries need to be recharged or replaced. Allow the UPS
to recharge continuously for 12 hours, and repeat the self-test. If the LED con-
tinues to light, contact Tripp Lite for service. If your UPS requires battery
replacement, visit www.tripplite.com to locate the specific Tripp Lite replace-
ment battery for your UPS.
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