Planmeca ProMax X-ray Instruction Manual page 91

PANORAMIC BEAM AND PATIENT POSITIONING MECHA- Chapter E - C-ARM AND IMAGING ARM
From the list on the i600 display that appears select Primary collimator calibration (i610) .
Figure 10
From the list on the i610 display that appears select Pan mode X-collimator calibration (i611) .
The radiation beam from the collimator can now be checked without the rotating unit moving.
Figure 11
Manually position the C-arm to a convenient position for viewing the secondary collimator.
ProMax X-ray unit with Dimax3 E-5
Technical Manual