Appendix B Calibration (DiRex System)
HF Series X-ray Generators - Service Manual Revision W
Quantum Medical Imaging, LLC B-31
4. Take an exposure at the setting indicated on the KV Calibration Screen
(i.e., 50 kVp, 200L mA, 100 mS).
5. On the kVp meter, observe the measured kV value. (Ideally, this value
should be 50 kVp.)
6. If not 50 kVp, press the 50 kVp adjustment button (located directly below
"Measured KVP#1" label). Find the measured KVP value in the scrollable
list, select it then press Enter. The values appearing in the list are in one-
tenth increments.
7. Press Next Measure button to proceed to 100 kV calibration setting.
8. Verify 100 KVP appears on the KV Calibration Screen and "Save Calibra-
tion" now appears on the top right button.
9. Take an exposure at the setting indicated on the KV Calibration Screen
(i.e., 100 kVp, 200L mA, 100 mS).
10. On the kVp meter, observe the measured kV value. (Ideally, this value
should be 100 kVp.)
11. If not 100 kVp, press the 100 kVp adjustment button (located directly
below "Measured KVP#2" label). Find the measured KVP value in the
scrollable list, select it then press Enter.
12. Press Save Calibration button. The KV Calibration Screen (First Mea-
sure) should be displayed.
13. Repeat KV calibration for both 50 and 100 kVp until indicated and mea-
sured kVp values agree to within 4% tolerance.
14. To proceed to filament calibration, press the Next button.