AGFA DRY 3.4 User Manual page 98

98 | DRY 3.4 | Advanced Operation (key-operator mode)
3. Record these values as measured distances A and B on Chart 4 ('Geometric
Consistency Control Chart').
4. Compare the measured A and B dimensions with the reference dimension
values, A
The differences between the measured dimensions of A and B and the
reference values A
5. Check for image distortion.
6. Calculate the aspect ratio by dividing A by B.
The result must be 1 +/- 0.01
Related Links
Establishing the image geometry reference values for general radiography
applications
Charts for general radiography QC
2602A EN 20191018 0826
WARNING:
Make sure to measure distance A from the left edge of
the left line to the right edge of the right line and
distance B from the upper edge of the upper line to the
lower edge of the lower line.
We strongly recommend using a 30 cm (12 inch) machinist
scale with 0.5 mm divisions (1/64 inch).
and B on Chart 4 ('Geometric Consistency Control Chart').
ref ref
and B
ref ref
WARNING:
If the image size or distortion values exceed the limits,
contact your local service organization to resolve the
problem.
on page 92
should be less than or equal to 1.0%.
on page 130