Setting a self-made device and replacement.

A self-made device is set to the convex probe, and a position sensor is set to the device. At this time, a mark is made on the right side to prevent a mix up between the left and right sides of the position sensor. (A) Removal of the position sensor from the convex probe device. (B) Setting the self-made device to the M probe during TE. A position sensor is set to the device. At this time, the marking is made on the right side. (ZIP)