4-2
KaVo OP 3D Vision Service Manual
032-0358-EN Rev B
Run Utilities
1. Select Acquire from the menu.
2. Press to access Utilities menu.
Roll-Off
Roll-off is used for field of view collimation testing and checks that the extents of the field of view are
visible. It can be run for both Full Beam (landscape) and Half Beam (portrait) orientation.
1. Perform both a PanelCal and a ShutterCal, described earlier in this chapter.
2. Select Roll-off and press .
3. Remove all objects from the field of view.
4. Select desired orientation (Full Beam or Half Beam) and press .
5. To fine-tune adjust the beam limiter shutter collimation amount, enter roll-off values as desired for
top, bottom, left and/or right borders. Each border can be independently adjusted. Positive values
shift the collimation out; negative values shift the collimation in.
6. Press to initiate a scout scan. Review scout scan for evidence of beam limiter shutter
collimation on all four borders.
NOTE: For Full Beam, two scout scans are taken in landscape position. For Half Beam, one scout
is taken in portrait position.
• Make note of any test configuration that requires roll-off adjustment greater than 10.00 (mm)
vertically or horizontally in either direction (plus or minus).
• Make note of any test configuration that does not show evidence of beam limiter shutter
collimation.
7. When scout scans are complete, press to continue with additional roll-off testing or
to exit.
Option Description
PanelCal
ShutterCal
ChairCal
GeoCal
QA Line Pair
QA Material
QA Air Water
QA Pan
Refer to Installation Manual.
Reprocess Exam Refer to User Manual.
Favorites Manager Refer to User Manual.
Roll-off Roll-off is used for field of view collimation testing.
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