Appendix B Calibration (DiRex System)
Revision W HF Series X-ray Generators - Service Manual
B-26 Quantum Medical Imaging, LLC
AEC optical density (on systems equipped with AEC option). These procedures
should be performed in the order presented in this chapter. The following is a
brief description of each of the Calibration Menu selections:
• A/D: Accesses the analog-to-digital (A-D) converters calibration function
• KV: Accesses KV calibration function
• Filament: Accesses tube filament offset calibration function
• MA: Accesses mA calibration function
• AEC: Accesses the AEC optical density and AEC kVp calibration functions
(active on systems equipped with AEC option only). Note that all of the
AEC Calibrations must be performed for each table and/or film/screen
combination used with the x-ray system. Selection of each film/screen
type used with the system is explained in "CONFIGURATION SETTINGS"
paragraph described previously in this chapter.
• Back: Returns to the Generator Service Menu. This function is also
provided in each of the above calibration screens, from which you are
returned to the main Calibration Menu
The paragraphs that follow describe the procedures for performing each of the
above calibration functions. Following initial system installation, these procedures
should be performed in the order presented in this chapter.
General Calibration Procedure Notes
The following notes apply in general to all calibration procedures, including
AEC calibration procedures. Please review these notes prior to performing
calibration.
•Press the Next button to advance to the next calibration procedure.
•Press the Back button to return to the previous calibration procedure.
• Each calibration screen displays the correct KV, MA, time and thickness
(in CM) value required for performing a particular calibration procedural
step. However, always ensure the correct values are set prior to
performing each procedural step.
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