Runout and interpretation of the drawing

Hello good people.

I have a little question regarding this runout callout,

I only have 2 years of experience in this field of work but I have never seen this kind of callout for runout.

how should I go forward with measuring this using PCDmis 2022?

What excactly is the point of the "circle" that the arrows indicate to?
I am assuming it is for directional "guidance" but I could be terribly wrong

All help is appreciated!

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UKCMM over 1 year ago

Would not attempt to measure this wheel rim Runout on a CMM, hard gauge fixture with DTI or electronic transducers is the way to go. As for the circle looks like it could be for measuring the 571.5 bead diameter using a set roller diameter possibly a note on the drawing somewhere.
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AdrianH over 1 year ago in reply to UKCMM

Thank you for the input!
there is no other notes on the drawing, I am not sure what you mean by "DTI or electronic transducers" though.
English is not my first language and some of the terminology is probably lost in translation :P could you please explain some more?
Regards
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AdrianH over 1 year ago in reply to UKCMM

Thank you for the input!
there is no other notes on the drawing, I am not sure what you mean by "DTI or electronic transducers" though.
English is not my first language and some of the terminology is probably lost in translation :P could you please explain some more?
Regards
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