Emerson LIEBERT GXT5000R-208 - Manual (Page 15)

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Load Level indicators - 4 green, 1 amber, 1 red LEDs
The Load Level indicators display the approximate load level at all times.
• The four green LEDs indicate acceptable levels up to 95%.
• The amber light comes on when the load level is 96-105%.
• The last LED at right (red) indicates an overload (more than 105%) and warns of immi-
nent shutdown if the load is not reduced.
Battery Capacity indicators - 5 green LEDs
The GXT5000R-208 features an automatic battery test. The Battery Capacity LEDs display
the approximate level of battery reserves.
An automatic test occurs every 28 days if utility power has not been interrupted. Should the
battery fail this test, the Battery Capacity LEDs will flash and the failure code will be dis-
played.
Fault indicator - 1 red LED
The Fault indicator LED is illuminated if the UPS detects a problem. Also, one or more of the
Load Level/Battery Level indicators may be illuminated (refer to Troubleshooting).
On Bypass indicator - 1 amber LED
The On Bypass indicator LED is illuminated when the UPS is operating from bypass power.
On Inverter indicator - 1 green LED
The On Inverter indicator LED is illuminated when the UPS inverter is operating and supply-
ing power to your connected loads.
AC Input indicator - 1 green LED
The AC Input indicator LED is illuminated when utility power is available and falls within
the input specification.