8
4.
Panel display, operation and running
The operation is simple, operators only need to read the manual and
follow the operation instructions listed in this manual without any special training.
4.1
Faceplate display illumination
4.1.1
Keys function
FIG.8 front panel buttons instruction
ON key
（
+
）
Press and hold this key for more than half a second to turn on the UPS.
OFF key
（
+
）
Press and hold this key for more than half a second to turn off the UPS.
TEST/MUTE key
（
+
）
Press and hold the key for more than 1 second in Line mode or economical mode:
UPS runs the self-test function.
Press and hold the key for more than 1 second in battery mode: UPS runs the mute
function.
INQUIRING key
or
Non-function setting mode:
Press and hold the key for more than half a second (less than 2 seconds): Indicate the
items of the LCD item section orderly.
