### Step 3 - Define the Number of Slots

The SCP600 is a single slot rack. You can make use of any quantity of racks acting independently. You can also assemble them to form a multi-slot rack of any quantity. This requires that you position them tightly against one another so that there is space between them.

Regardless of how many rack pieces are being used independently, they must all be defined and calibrated individually. However you choose to use them, the number of slots must be first entered in the ‘Slots’ tab before calibration begins.

Probe Changer dialog box - Slots tab

To define the number of slots for your SCP600 Probe Changer, follow these steps:

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

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

3. In the Number of slots box, type the number of slots (1, 2, 4, and so on).

4. Click Apply to save your changes.

You are now ready to begin calibration. In the next step you will start the calibration procedure.

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