Eaton RT 1250VA User Manual - page 22
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②
Enter the output voltage setting interface Press and hold the
function setting key
for more than half a second(less than 2
seconds), then come to setting interface of output voltage OPU, at
this time, the letters “OPU” will light for a long time. The
numerical value below the OPU will flash. Press and hold the
inquiring key
for more than half a second (less than 2 seconds),
select the numerical value in accordance with “OPU” function. The
provided voltages are 208v, 220v, 230v, 240v you can choose anyone
by yourself (The default is 220v).
③
Confirm the output voltage setting interface After selecting
numerical value, press and hold the function setting key
for
more than 2 seconds. Now, the OPU setting function is completed and
the numerical value below the “OPU” will light without flash.
④
Exit from the setting interface. Press and hold function setting
key
for more than 2 seconds, exit from the setting interface
and return to main interface.