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Njoy Ranger 30KR User Manual page 55

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5. Battery mode operation
• When the UPS is in Battery mode, the buzzer will sound according to
different battery capacity. If the battery capacity is more than 25%, the
buzzer will beep once every 4 seconds. If the battery voltage drops to the
alarm level, the buzzer will beep once every sec to remind users that the
battery is at low level and the UPS will shut down imminently. Users could
switch off some non-critical loads to disable the shutdown alarm and
prolong the backup time. If there is no more load to be switched off, you
have to prepare shutdown procedure to preserve working data or devices.
Otherwise, there is a risk of data loss or load failure.
• In Battery mode, users can touch "SETTING" "GENERAL" Audio Mute
to enable "Mode Mute" to disable the buzzer.
• The backup time of the long-run model depends on the external battery
capacity.
• The backup time may vary from different operating temperature and
load type.
• When setting backup time for 16.5 hours (default value from LCD
menu), after discharging 16.5 hours, UPS will shut down automatically to
protect the battery. This battery discharge protection can be enabled or
disabled through LCD menu.
6. Test the batteries
• If you need to check the battery status when the UPS is running in AC
mode/CVCF mode, you could touch "CONTROL" and select "Battery Test".
Refer to "Battery Test" screen.
• Users also can set battery self-test through monitoring software.
7. Turn off the UPS with utility power supply in AC mode
• Touch "CONTROL" and select "Turn off UPS" icon to turn off the UPS.
Refer to "On/Off UPS" screen.
NOTE 1: If the UPS has been set to bypass output, it will bypass voltage
from the mains to output terminal even though you have turned off the
UPS (inverter).
NOTE 2: After turning off the UPS, please be aware that the UPS is
working in Bypass mode, there will be risk of power loss for connected
devices.
55

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