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#### Step 4 - Prepare for Calibration

To begin the calibration procedure for the SCP600 Probe Changer, follow these steps:

Probe Changer dialog box - Calibrate tab

1. Select the Calibrate tab from the Probe Changer dialog box.

2. Select TYPE=SCP600 from the Active probe changer list.

3. In the Active tip box, select the tip ID to be used for calibration. Most often this will be T1A0B0.

4. Click the Calibrate button to begin.

Once you click Calibrate the following message box appears:

PC-DMIS MESSAGE: Open the lid for port 1 and insert the stylus tool so that the lid remains open. Remove any probe that may currently be in the port. Click OK when ready.

1. Open the lid or lids by pushing them all the way back and inserting a metallic pin (called a stylus wrench) into the hole in the top of the slot near the back right corner. This hole is located to the side of the spring on the right when facing the rack.

2. With the lid or lids open, remove any modules or styli by sliding them forward out of the ports.

SCP600 Probe Changer showing an empty slot held open by the stylus wrench

3. Click OK when you are ready to take the first measurement.

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