Planmeca ProMax 3D Max with ProTouch Technical Manual page 117

Technical manual
6.c. Select Beam Check 3D of the Calibration Tasks selections.
7. Click the Next button to start capturing a test image.
8. Protect yourself from radiation and press the exposure button to take the
exposure.
The beam check test image will appear in the window.
9. Observe the beam check test image, check the following:
9.a. Check that all collimator blades are adjusted enough inside the
sensor active area so that the borderlines are clearly visible on
each side.
If there is no clear borderline on each side, adjust the collimator
blades more narrow, as described in the Step 4.
5 Panoramic and 3D calibrations
Planmeca ProMax 3D Max 111