No response from the hioki distributor so far
No good news from them...
Production ended in 2015, service support ended in 2021.
This means that since that date there is nothing more for it, no spare parts and no documents like the service manual.
That, in turn, was only available for authorized service workshops.
Fortunately, the device does not have an electrical defect in the sense that it requires the manual.
But maybe I'll be lucky someday and get it after all.
Now I want to order the panel from the Ebay seller, but he is on "vacation" until February.