#### Step 7 - Measuring Port 3 / PA25-20 Insert

Before PC-DMIS can measure Port 3 (the right-most probe), you must first change the probe to the probe file you previously specified for the Second Probe File in Step 4. When prompted, remove the current module, and add the TM25-20 module to the end of the probe body.

The image to the right shows the TM25-20 module and TP20 type stylus after this change.

Note: Changing probes may not be necessary depending on your FCR25 probe changer configuration. For example, if there are no inserts in any of the ports, then this probe change may not be necessary. The change specified in this step is only required to accommodate calibration of Port 3 with the PA25-20 insert.

After changing the probe, click OK. PC-DMIS will then display the following prompt:

PC-DMIS MESSAGE: Please jog the probe to a safe location with a clear line of approach to the port(s) being calibrated, then click OK. When you click OK the machine will begin DCC operation.

After moving the probe to a safe location, click OK, and PC-DMIS will begin automatic measurement of the insert in Port 3. The following images show the probe taking measurements. PC-DMIS will automatically take hits to determine the location of the insert.

This completes the measurement of Port 3. In the next step, PC-DMIS will measure Port 2.

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