OPTI-UPS IS5000LR - Manual (Page 17)

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4.11.5 To change the green mode level at battery mode
When the “Gn.0” is blinking, it means the green mode level if off. The UPS will not turn off the
power automatically if there’s no any load connected to UPS. When the “Gn.1” is blinking, it
means the green mode level is 1%of full load level. The UPS will turn off the power automatically
if blackout happened when load level is less than 1% of full load.
Push the selection button “ “ for 2 seconds at least, to increase the green mode level or push
“ “ to decrease the level. Push two selection buttons at the same time to end the setting
.