Hi User,
Setting UPS parameters:
− When the UPS is in standby mode or bypass mode, hold down
SELECT for 5 seconds to start setting UPS parameters. Press
ON/MUTE or SELECT to switching LCD display. 10 seconds after
the button is released, the default display returns.
− When the UPS is in normal mode or battery mode, hold down
SELECT for 5 seconds to start setting only for 11 UPS buzzer
parameters.
Selecting the next option: During the setting of UPS parameters, press
SELECT for more than 3 seconds. Release the button when you hear a
beep sound to select the next option.
In normal mode, press SELECT twice and ensure that the pressing
time is less than 3 seconds each time. Then you can view the input,
output, and battery information.
hope this will help you.