I have a little problem with my FP3 CCT Dialog11.

Before, I should say that I currently familiarize myself with the Dialog11 as I recently bought the machine.
I already have good knowledge in Shopmill, Shopturn or Mazatrol if anybody wants to make any comparisons.
About my problem:
I wanted to identify the probe length.
So I created the probe as a tool e.g. TT99 i drove over the table with the empty spindle and kind of zero it via a gauge block.
Then exchanged the probe until the contact has run onto the table- like that the resulting Z different from the spindle to the table is taken as a the probe length and typed in for the probe in the tool memory.
Now it should display Z0 when I change the probe and drive onto the table. But it doesn’t do that. Somehow it doesn’t calculate the tool lengh.

What am I doing wrong???

Unfortunately I couldn’t find anything in the manual....

Can anybody help me out?

Kind regards