Quantum ODYSSEY HF Series User Manual

Appendix D Calibration (Using Generator Service Tools)
Revision W HF Series X-ray Generators - Service Manual
D-24 Quantum Medical Imaging, LLC
The Calibration Wizard is organized into six groups, as represented by the fol-
lowing tabs:
• Overview - Provides brief description of calibration Wizard and includes
an activate/deactivate function to determine which generator calibrations
to perform
• A/D - Accesses the analog-to-digital (A-D) converters calibration function
• kVp - Accesses KV calibration function
• Filament Offset - 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.
The paragraphs that follow describe the procedures for performing each of
the above calibration functions. These procedures should be performed in
the order presented. Note that any of the six calibration procedures may be
directly accessed and performed by simply selecting the corresponding tab
in the Calibration Wizard - Overview screen.
A/D Tab
The A/D (analog/digital converter) calibration utility is used to calibrate vari-
ous essential supply voltages utilized by the x-ray generator against a pre-cal-
ibrated NIST-traceable voltage measurement instrument (such as a DMM).
After A/D calibration has been performed, the generator continuously moni-
tors the critical internal voltages, and will not allow an exposure if certain tol-
erances are exceeded.
Table 3-3 shows the various voltage levels (with tolerances) that can be cali-
brated using this utility, and it provides the location of the test point at which
a calibrated voltmeter must be connected for measuring the actual voltage
level:
Table D-1. A/D Calibration Voltages
Voltage Level
Calibration
Accuracy
Test Point Measurement Location
Cathode ±8 VDC
+/- bus bars on Capacitor Bank next to Power Mod-
ule A19 (left side looking into generator cabinet)
Anode ±8 VDC
+/- bus bars on Capacitor Bank next to Power Mod-
ule A18 (right side looking into generator cabinet)
+5VDC ±0.1 VDC TP1 on Logic Board AY40-006S

Quantum ODYSSEY HF Series Specifications

General

Brand	Quantum
Model	ODYSSEY HF Series
Category	Medical Equipment
Language	English