User Manual

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2900H EN 20071108 Advanced operation (Key-operator mode)
DRYSTAR 5500/5503 REFERENCE MANUAL
2 To determine the reference values for geometry, measure the distances A and B
of the geometric square on the test image.
3 Record these values as reference dimensions A
ref
and B
ref
on Chart 4
(‘Drystar 5500/5503 Geometric Consistency Control Chart’). Refer to ‘Charts
for general radiography QC’ on page 242.
These charts will be used for the annual quality test. For more information, refer to
‘Performing the Annual QC tests for general radiography applications (DT 2 B and
DT 2 C)’ on page 152.
4 Save this film for future reference.
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).