GE Senographe DS Manual page 1659

GE Healthcare
Revision 1
SETUP/GENE/INSTAL/GENE/GENE/BIAS/VOLTAGE/CHANGE
a. Select
sole.
b. Enter 1.300E+2V and valid.
c. Press SETUP/SETUP/SETUP/SETUP/CKSUM/CKSUM on the X-ray Console to perform a
checksum.
d. Press SETUP/SETUP/SETUP/SETUP (i.e. 4 times) on the X-ray Console.
e. Select 30kV/LARGE/MO/MO on the X-ray Console.
f. Do a preparation with the Prep button on the X-ray Console.
g. Check that the result is between 123.5 and 136.5Vdc.
SETUP/GENE/INSTAL/GENE/GENE/BIAS/VOLTAGE/CHANGE
h. Select
sole and enter the value corresponding to the MO/LF noted in the first check point.
7. Fourth check point:
a. Select MO/SF voltage parameter and note the actual value associated to the tube (see step
section 6-2).
b. Enter 2.500E+2V and valid.
c. Press SETUP/SETUP/SETUP/SETUP/CKSUM/CKSUM on the X-ray Console to perform a
checksum.
d. Press SETUP/SETUP/SETUP/SETUP (i.e. 4 times) on the X-ray Console.
e. Select 30kV/SF/MO/MO on the X-ray Console.
f. Do a preparation with the Prep button on the X-ray Console.
g. Check that the result is between 247 and 256Vdc.
8. Fifth check point:
SETUP/GENE/INSTAL/GENE/GENE/BIAS/VOLTAGE/CHANGE
a. Select
sole and enter the value corresponding to the MO/SF noted down on step
b. Select MO/SF voltage parameter and note the default value.
c. Enter 3.000E+2V and valid.
d. Press SETUP/SETUP/SETUP/SETUP/CKSUM/CKSUM on the X-ray Console to perform a
checksum.
e. Press SETUP/SETUP/SETUP/SETUP (i.e. 4 times) on the X-ray Console.
f. Select 30kV/SF/MO/MO on the X-ray Console.
g. Do a preparation with the Prep button on the X-ray Console.
h. Check that the result is between 297 and 305Vdc.
i. Select SETUP/GENE/INSTAL/GENE/GENE/BIAS/VOLTAGE on the X-ray Console and select
MO/SF.
j. Enter the value corresponding to the MO/SF value noted down on step
9. If the results are within the tolerances given, the focal bias voltage calibration is finished. If the results
are out of tolerance, repeat the calibration and check procedures.
10. Select SETUP/SETUP/SETUP
values of parameters I, J, K, L, M and N. Each of these six values can be displayed alternately by
rotating the kV dial on the X-ray Console,
11. Delete the previously created patient called "X-ray Tube BIAS cal".
12. Perform a checksum (SETUP/GENE/INSTAL/CKSUM/CKSUM), then turn the system OFF.
13. Remove the high voltage cable adapter. Remember to secure the HV ring correctly using the allen
JC-CAL-A-003.fm
Service Information and Procedures Class A 2385072-16-8EN
Job Card CAL A003 - X-Ray Tube Focal Bias Voltage Scale Factor
/CALIB/PARAM
on the X-ray Console. Note down the calculated
Page no. 1659
Senographe DS
on the X-ray Con-
on the X-ray Con-
on the X-ray Con-
7 (fourth check point).
7 (fourth check point).
Chapter 9
3