9600 Service Manual - gmecorp-usa.com

14 Generator Calibration
DUTY CYCLE CALIBRATION
Take Duty Cycle Data
NOTE: Refer to the “Calibration Tips” at the end of this procedure for things to watch for
during the calibration procedure.
WARNING Steps within this procedure produce X-rays. Use appropriate precautions.
1. Enter command letter: A - Take Duty Cycle Data.
A screen of instructions will appear for either the Model II or III Dynalyzer. (The
model is automatically sensed by the software). Ensure that each instruction on the
list has been performed before continuing.
2. Depress the FOOTSWITCH (or X-RAY ON button) to select AUTO mode.
3. The system will automatically acquire a series of shots (approximately 250).
Observe the shots reported on the monitor. These should match those of the DRO.
If not there may be a problem with the:
• Auto-cal box
• PIOs on the Analog Interface PCB
• Cabling
4. If the Dynalyzer fails to trigger, the calibration software will prompt you to press the
RESET button on the DRO and then press ENTER.
5. The Generator automatically switches filaments during duty cycle calibration. When
this happens, the following message will appear on the Workstation screen.
***SWITCHING FILAMENTS - 1 MINUTE DELAY ***
NOTE: Exposures will continue until all the calibration data has been acquired.
Calculate Duty Cycle Coefficients
1. When the data acquisition run is complete, you will be returned to the Model 9600
Calibration Menu.
2. Select: B - Calculate Duty Cycle Coefficients to EEPROM.
3. The coefficients are calculated and briefly displayed on the screen.