Xtreme Power Conversion Corporation
E90 Service Manual
Page 53
Uninterruptible Power Supply
Maintenance: All system parameter setting are controlled by two keys, Scroll and Enter.
Scroll - Moves through the parameters and adjusts values
Enter – Goes into setting pages and confirms values.
To enter the Maintenance - System parameter setting mode, press the Scroll and Enter keys simultaneously for 3
seconds. The display will show a password window, press the Scroll key to change the number and press Enter to
select the value, the password is “1121”.
Once the Maintenance password is entered, press the Enter key. The UPS goes into the Setting-System
window as shown below.