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5. Operation
5.1.3 AutoBoost: Illumination of AutoBoost indicator means that the AutoBoost
circuitry has been engaged to compensate for unacceptably low line voltage. The UPS
is capable of operating in this mode continuously without draining charge from the
battery.
5.1.4 On Line indicator: Illumination of the On Line indicator means that the load is
being supplied conditioned power derived from the utility service. The indicator outs
during the blackout, low voltage or over voltage conditions.
5.1.5 AutoTrim: Illumination of AutoTrim indicator means that the AutoTrim
circuitry has been engaged to compensate for unacceptably over line voltage.
5.1.6 Battery capacity bar graph: The battery capacity bar graph continuously displays
the state of battery charge. Where power quality is fair, the UPS will be able to
maintain the battery at 100% of rated capacity. In the event of an extended utility
failure, the capacity shown will decrease at a rate dependent on the load drawn from
the UPS. Large computer loads will cause the battery capacity indication to fall at a
faster rate.
5.1.7 Low battery indicator: When low battery conditions are reached, the bottom-
most bar will illuminate.
5.1.8 Trouble indicator: In the event of an short-circuit of output cable, weak
battery, over/low output voltage or miscellaneous trouble of UPS, the trouble indicator
will illuminate and emits constant tone.
5.1.9 Alarm disable pushbutton: This button may be pressed to silence the
trouble audible warning which of caused by utility failure only.
5.1.10 On battery indicator: Illumination of the On Battery indicator means that
load has been transferred to power derived from the UPS
’
s battery and that utility
voltage is not within normal limits.