When performing scans Transvirtual has the ability to declare equipment types associated with these scans.

For detail on Scanning process see article here 

Once a scan has been performed you will see the Equip Check option appear as below

Once selected you will be presented with the below screen with equipment options configured in your account.

Enter the number of each equipment type associated with this item being scanned. 

You also have the option to apply this same equipment count to subsequent scans by populating the below field.

Now select the save option.

If the count has been applied to subsequent scans you can see this count whilst scanning as highlighted below, this number will reduce as subsequent scans are performed.