Njoy Ranger 30KR User Manual page 26

Enable: When selected, the UPS will NOT alarm when UPS related status
changes.

Volume: Simply touch the panel to adjust alarm volume.
Advance Setting
 Advance
To access to the "Advance
enter the default password "0000".
If entered password is right, the page will jump to setting screen. If the
password is wrong, it will ask to enter again.
26
Advance Password Page
User
User" Setting menu page, it's required to
Password error page