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I use Firmware: 8.2.0.EU  which should be set to level2, as I can't do it in GUI

But still the voltage detected is 120V, which is wrong

Any advice?

I managed to change it to L2  using a RAPI command

Go to "Configuration " menu → "Developer " menu

In RAPi section  set : $SV 220000

click in the "send" button

Enjoy

Verify :

Go to the "Monitoring" menu

Go to "Captors" sub menu

Hello,

It not work on my side

It's ok with "Level 2" mode