Calibration
7. While making an Auto Fluoro exposure in the Normal Magnification mode, move the iris gears to obtain image tube input
doses according to the preceeding section.
8. Without moving the position of the iris gears, swing the open iris stop up against the iris stop and tighten the set screw to 10
ounce-inches.
9. Repeat the Iris Stop Verification procedure in the previous section.
10. If the system has the 30 PPS HLF option available, proceed to the next step, otherwise go to the CameraLens Focus section
following.
11. Loosen the closed iris stop set screw using a 6 flute Bristol Spline tool (see next picture).
12. While making an exposure in the Auto Fluoro exposure in the Normal Magnification mode, move the iris gears to obtain the
following image tube input dose:
• 9-inch I.I. – 16 ± 2.0 mR/minute
• 12-inch I.I. – 11.6 ± 1.5 mR/minute
13. Without moving the position of the iris gears, swing the closed iris stop up against the iris stop and tighten the set screw to 10
ounce-inches (see following picture).
14. Repeat the Iris Stop Verification procedure in the previous section.
Note: The doses set in step 12 are not the verified amounts specified in the Verification instructions in the previous section.
67
Service
Periodic Maintenance
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