OEC 9800C-Arm, Service Manual, Page: 314 / 490

Calibration
49. In the Dose Area Product Calibration Window, in the box provided next to the Drive Iris To Button, click on the box containing
the following iris position:
For 9-inch System 350
For 12-inch System 260
Point and click on the DRIVE IRIS TO Button.
50. Take a Fluoro X-ray, then on the DOS Keyboard press the X Key. On the DOS Monitor, on the DAP_CMP Report line,
ensure that the Shutter report is
≥
97.5, Rotation report is 180 ± 2.
For 9-inch Systems, the Iris report is 46 ± 2
For 12-inch Systems, the Iris report is 40 ± 2
51. On the DOS Keyboard, press the X Key.
52. Take a Normal Fluoro X-ray for at least 10 seconds, read and record the Dose Rate in mR/sec. Enter this value in the correct
corresponding box in the Dose Area Product Calibration Window.
53. Manually adjust the Collimator Rotation fully
4
CCW.
54. Take a Fluoro X-ray, then on the DOS Keyboard press the X Key. On the DOS Monitor, on the DAP_CMP Report line,
ensure that the Shutter report is
≥
97.5, the Rotation report is 0 ± 2.
For 9-inch Systems, the Iris report is 46 ± 2
For 12-inch Systems, the Iris report is 40 ± 2
55. On the DOS Keyboard, press the X Key.
56. Take a Normal Fluoro X-ray for at least 10 seconds, read and record the Dose Rate in mR/sec. Enter this value in the correct
corresponding box in the Dose Area Product Calibration Window.
57. In the Dose Area Product Calibration Window, in the box provided next to the Drive Iris To Button, click on the box containing
the following iris position:
For 9-inch System 400
For 12-inch System 325
Point and click on the DRIVE IRIS TO Button.
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Service Periodic Maintenance Contents Schematics Illustrated Parts Installation