AccuLine TNplus 1000m User Manual page 29

then, while the UPS is operating in battery mode or battery test mode, the
will be displayed on the LCD in turns, changing every 2 sec.
An example for changing the Operating mode from normal mode to
converter mode via the LCD display.
Step 1:
OPV after pressing the Enter button.
Step 2:
OPF after pressing the Select button.
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