Thermo Scientific APEX 100 User Manual page 377

4) Press the right-navigation button to select the photo-eye registration menu. (The
screen below shows that currently the photo-eye registration is set to detect the
leading edge of the product.)
Leading Photo Registration
5) Press the Go button repeatedly until the check mark is displayed next to the "detect
the middle of the package" icon, as shown below.
Middle Photo Registration
6) Press the Back button to save your setting and exit the menu.
Thermo Scientific APEX User's Guide Page 377