Follow these steps to set up the trigger area for the first time, or when Tricolops Dimensioning Application indicates the trigger area needs to be re-calibrated.

1. Remove all objects from the trigger area/scale.
   

2. Click Options -> Set Trigger Area.
   
   

3. Click and drag the edges of the black to be inside the surface of the scale.
   
   

4. Click Finish on the top left corner of the image.