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990-1007A, Revision 2 9/99 14
LEDs
The LED bar on the front of the unit gives information by means of color and size of the bar.
[ MUTE ]
Battery Oper.
Check Battery
Green
Yellow
Normal Oper.
Recharging Batt.
[ 100 % ][ 50 % ]
[ 25 % ]
[ 75 % ]
Overload
Red
Bypass / Failure
The general meaning is:
Green = Okay.
Yellow = Okay, but...
Red = DANGER!! Might lose output.
CONSTANT GREEN
FLASHING GREEN
CONSTANT YELLOW
FLASHING YELLOW
CONSTANT RED
FLASHING RED
= NORMAL OPERATION
= CHARGING
= BATTERY OPERATION
0 - 25% load
0 - 25% recharged
25 - 50% load
25 - 50% recharged
50 - 75% load
50 - 75% recharged
75 - 100% load
75 - 100% recharged
Battery is wearing out and
needs to be changed
Overload
Bypass
100 - 75% remaining energy
75 - 50% remaining energy
50 - 25% remaining energy
25 - 0% remaining energy
LED DISPLAY
An alarm will sound when the UPS goes into battery operation, bypass operation, or fault conditions. (The alarm can be
stopped by pressing the mute button.)