PowerWalker Battery Pack for VI 1000_1500RT LCD - Manual (Page 19)

EN
4. Operation
4.1 Display Panel
The UPS has a four-button graphical LCD with dual color backlight. Standard
back-light is used to light up the display with black text and a blue background.
When the UPS has a critical alarm, the backlight changes the background to
red. See Figure below:
Control Buttons functions:
There are four buttons on the control panel.
ON/OFF
UPS Test /Alarm Silence
Select
Enter