GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Job Card ELE A012 - X-ray Parameter Check
Page no. 571 Chapter 7
JC-ELE-A-012.fm
Job Card ELE A012 - X-ray Parameter Check Chapter 7
1SUPPLIES
None
2TOOLS
• Set of acrylic plates
• Meter for measurement of mAs. The meter used must be in good condition and possess valid certifi-
cation.
Suitable meters are:
- Fluke 87 multimeter
- Keithley 35035 mAs meter
- GS Poner 165 mA-mAs meter
3 REQUIRED EFFORT
Personnel: 1 Field Engineer
Time: 40 minutes
4 SAFETY PRECAUTIONS
The procedures in this Job Card produce X-rays. Ensure that you take appropriate precautions when
operating with X-rays (for example, stay behind the radiation screen during an X-ray exposure).
5 PREREQUISITES
None
6 GENERATOR TESTING
You must check the Generator kV, mA, and mAs calibrations, which have already been made in the fac-
tory.
6-1 Set Up the Generator for Testing
1. Configure the Senographe for the following exposure:
- Mode manual (2-point)
- Focal spot: large
-Track: Mo
-Filter: Mo
-mAs: 60 (lower mAs value can give inaccurate measurements)
-HV: 22 kV
2. Activate display of parameters following an exposure by selecting SETUP/GENE/INSTAL/GENE/
CONFIG/DISP/YES on the X-ray Console. Return to application mode.
3. Connect the digital mAs meter to kV mA board 701-PL1 (on the HV tank unit 701) between terminals
MES_MA_POS and MES_MA_NEG. Disconnect the jumper that is normally between these two ter-
minals.
4. Set the mAs meter to current (mA) measurement.
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