Follow these steps to setup the trigger area for uneven surfaces 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. Place a thin, flat piece of board (e.g. cardboard) that is at least 1ft x 1ft over the scale / rollers.

3. Go to Advanced -> Options, scroll down to Advanced tab, and make sure "Auto Calibrate" is unchecked.

4. Follow these steps to setup trigger area.

5. Remove board from trigger area.