Keep the pan comparison
Say whether the same pan previously worked on that zone and whether other ordinary pans are recognised. Include the approximate base size without inventing a minimum dimension.
Preserve the exact display
Copy flashing symbols and model details. An engineer can use the pattern to decide whether the enquiry concerns cookware detection, a zone or controls. Avoid buying a part from the symbol alone.
A useful distinction
A pan's top diameter can differ from its contact base. If size appears relevant, describe the base and actual model guidance rather than comparing the width of the rim with the printed ring.