GE HEALTHCARE
DIRECTION 2307224-100, REVISION 6DISCOVERY LS SYSTEM SERVICE MANUAL
Table of Contents Page 15
2.7.1.3 Circuit Breakers and Switches - CPDU............................................................ 63
2.7.1.4 Mechanical Hazards - None............................................................................. 64
2.7.2 New Global Power Distribution Unit (NGPDU) ................................................................ 64
2.7.2.1 Hazard Awareness Indicators - NGPDU .......................................................... 65
2.7.2.2 Protected Service Outlets - NGPDU ................................................................ 65
2.7.2.3 Circuit Breakers and Switches - NGPDU ......................................................... 66
2.7.3 Mechanical Hazards ........................................................................................................ 66
Section 2.8
PET System Safety........................................................................................... 66
2.8.1 General............................................................................................................................ 66
2.8.2 Safety Signal Definitions.................................................................................................. 66
2.8.3 Safety Labels................................................................................................................... 67
2.8.3.1 Electrical Safety Labels.................................................................................... 67
2.8.3.2 Mechanical Motion Labels................................................................................ 71
2.8.4 Laser Related Labels....................................................................................................... 72
2.8.5 Radiation Safety Labels................................................................................................... 73
2.8.6 Thermal Hazard............................................................................................................... 74
2.8.7 Rating Labels................................................................................................................... 74
Section 2.9
CT-PET System Safety..................................................................................... 74
2.9.1 CT-PET Gantry Safety..................................................................................................... 74
2.9.1.1 Clearance Between Gantries in Service Position............................................. 74
2.9.1.2 Safety Measures While Moving PET Gantry.................................................... 74
2.9.1.3 CT-PET Emergency Stops............................................................................... 75
2.9.2 CT-PET Table Safety....................................................................................................... 76
2.9.2.1 Secondary Base Drive Mechanism Safety (Automated Tables) ...................... 77
2.9.2.2 Table Secondary Base Remote Control Switch Safety (Manual Tables)......... 78
2.9.3 CT-PET Safety Labels..................................................................................................... 78
Chapter 3
DLS System Functional Description.................................................................... 79
Section 3.1
Introduction ...................................................................................................... 79
Section 3.2
CT Overview and Functionality....................................................................... 79
3.2.1 PDU ................................................................................................................................. 80
3.2.2 Data Acquisition System.................................................................................................. 80
3.2.3 Image Processor.............................................................................................................. 80
3.2.4 Stationary Computer and Axial Board ............................................................................. 80
3.2.5 On-Board Controller......................................................................................................... 80
3.2.6 Axial Drive........................................................................................................................ 80
3.2.7 Slip-Ring Infrastructure.................................................................................................... 81
Section 3.3
PET Overview and Functionality..................................................................... 81
3.3.1 Electronic Cabinet............................................................................................................ 81
3.3.1.1 MAGIC ............................................................................................................. 81
3.3.1.2 SHARC............................................................................................................. 81
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