Battery Low/Replace Indicator (Red); Ups Load Indicator (Red) - Compaq Pro UPS 500 Operation And Reference Manual

BATTERY LOW/REPLACE Indicator (Red)

The BATTERY LOW/REPLACE indicator illuminates when the internal
processor detects a low or weak battery.
The BATTERY LOW/REPLACE indicator will illuminate constantly to
indicate low battery charge. This indicator will flash, after a self-test is
initiated, to indicate the need to replace the battery. An audio alarm will sound
once per 10 seconds. The alarm can be silenced by momentarily pressing the
TEST/ALARM RESET button. If the BATTERY LOW/REPLACE indicator
flashes, allow the UPS to recharge for 12 hours and repeat the self-test. See
"Initiating a UPS Self-Test" in this chapter.

UPS LOAD Indicator (Red)

The UPS LOAD indicator illuminates automatically under the following
conditions: utility power is absent, the UPS is operating from the battery, and
an overload condition exists. This indicator flashes when the UPS detects
overload conditions of 100 percent of rated load. The UPS will shut down and
the indicator will illuminate continuously if the UPS load exceeds 100 percent
of rating. Remove excess load immediately and initiate a self-test to clear the
shutdown latch.
You can detect the presence of an overload by conducting a self-test. See
"Initiating a UPS Self-Test" in this chapter.
Operation 3-11