Current Help System: PC-DMIS Portable (View Core Help)

## Performing a Fixed Time Manual Scan

The Time Delta method of scanning allows you to reduce the scan data by setting a time increment in the Time Delay Between Reads box. PC-DMIS will start from the first hit and reduce the scan by deleting hits that are read in faster than the specified time delay.

Example: If you specify a time increment 0.05 seconds, then PC-DMIS will only keep hits from the controller that are measured at least 0.05 seconds apart. The other hits are excluded from the scan.

See the "Common Functions of the Scan Dialog Box" topic of the PC-DMIS Core help file for information on this tab's other controls.

To Create a Fixed Time (Time Delta) Scan:

1. Select the
   Insert | Scan | Fixed Time menu option. The TIME DELTA dialog box appears.

TIME DELTA dialog box

2. Specify a custom name for the scan in the ID box, if you don't want to use the default name.

3. In the Time Delay Between Reads box, type the time in seconds that will need to elapse before PC-DMIS takes a hit.

4. If you're using a CAD model, type a Find Nominals tolerance in the Find Nominals Control area. This defines how far away the actual ball center point can be from the nominal CAD location.

5. Set any other dialog box options as needed.

6. Click Create. PC-DMIS inserts the basic scan.

7. Execute your part program. When PC-DMIS executes the scan, the Execution Options dialog box appears and PC-DMIS waits for data to come from the controller.

8. Manually drag the probe over the surface you want to scan. Whenever the elapsed time exceeds the values specified in the Time Delay Between reads box, PC-DMIS will accept a hit from the controller.