Hmm, on another thread discussing Multiplus II internal/external current sensors someone wrote this…
msevestre
Hi
if you use a clamp, the setting related to the current sensor must not be changed (and thus, remains “internal”) as the champ is actually connected to same the internal sensor connector on the multiplus.
External current sensor setting must only be used for really external meters, not the CT clamp connected to the MP2 connector.
Matt