Universal APX 525

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APX 525/625 Generator Revision C Diagnostics

2005 Del Medical Imaging Corporation

7/5/2005 Page 185

kilovoltage Control

Illustration X4

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Table of Contents5
Introduction10
Damage in Transportation10
X-Ray Protection10
X-Ray Equipment Safety Recommendations11
Electrical Grounding11
X-Ray Tube11
Features and Benefits of the APX 525 and 62512
Operating Manual14
Introduction14
Power On/Off Procedure16
APX Control Console Description17
Mode Selection19
Setting Default Startup Parameters20
Prep and Expose20
Using the Rotational Knob20
Multi-Function Buttons21
X-Ray Tube Anode Heat Display21
Basic X-Ray Procedures21
Manual Mode21
AEC Mode22
Apr Mode23
Daily X-Ray Tube Seasoning Procedure25
Fault Indications25
Specifications27
Aec28
Compatibility Listing29
X-Ray Tube Assemblies29
System Weights and Dimensions30
D.h.h.s. Compliance33
Preventive Maintenance33
User Service and Maintenance34
Safety Information34
X-Ray Generator Maintenance35
Pre-Installation36
Pre-Installation Planning36
Wiring Requirements36
Identification of Incoming Line37
Grounding38
Single Phase Installations (APX-525 Only)38
Making Connections (Single Phase)40
Connecting 208 VAC Single-Phase Power (636-0021P2) Transformer3140
Making Connections (Single Phase)49
Connecting 240 VAC Single-Phase Power (636-0021P2) Transformer4049
Three Phase Installations58
Connecting 208 VAC Three Phase Power (30 Kw Only) (636-5010P1 Transformer)65
CONNECTING 480 VAC THREE PHASE POWER (30 Kw & 40KW) (636-5010P1 TRANSFORMER)78
Connecting 208 VAC Three Phase Power (40 Kw Only) (636-0070P1 Transformer)92
Cable Index105
Cable Index Notes106
Modifications108
AEC Chassis Modifications108
Line Match Transformer108
Installation109
Rack Mounted APX 525/625 X-Ray Generator109
Generator Interconnections110
Power Module110
Exposure Interlocks110
Filament Connections to High Tension Transformer (Cable #126-0178G1)110
Plug Connections to Power Module111
Stator Connections111
Wall Image Receptor Connections111
Service Adjustments113
Start Up, Operational Check and Calibration Procedure113
General Notes113
Component Identification115
Pictorial Diagrams115
Adjustment Pot Identifications131
Generator Start up Operational Tests and Installation Set-Up131
Test Equipment Required132
Inspection of High Tension Transformer132
Inspection of Power Module133
Inspection of Controller133
Operational Testing133
Programming the Default System Configuration Menu135
X-Ray Tube Assemblies137
APX X-Ray Calibration Procedure139
Test Equipment Required139
Initial Test Exposure141
Dynalyzer / Scope Setup142
Calibrate Ma143
Initial Setting of Preheat Pots144
Calibrate Mas146
Initial Voltage to Frequency Calibration146
Long Exposure Mas Calibration147
Calibrate Kv147
Calibration Verification149
Alternate Calibration Procedure150
Kv Calibration154
Mas Adjustment154
Mas Adjustment - Alternate Method Without Dynalyzer155
Mas Calibration155
Ma Fault Calibration156
Additional Optional Inspections158
Calibrate High Tension Transformer Balance158
Calibration of SCR Hold off Time158
Boost Time Adjustment159
AEC Inspection and Calibration160
AEC Cable Interconnections160
Connections for Ion Chambers on Main AEC Board160
AEC Communication Link Checkout161
AEC Device Field Calibration Procedure163
Required Equipment163
Calibration Procedure164
Preliminary Gain Adjustments165
For the Table Image Receptor165
For the Wall Image Receptor165
Kv Compensation Adjustments166
Secondary Gain Adjustments168
Back-Up Timer Test168
Maintenance168
Schematics171
Diagnostics199
Troubleshooting Topics for the APX 525/625 Generator199
No Ready Light199
Ready Light Is Active, but no Exposure Occurs200
Kv Faults201
Category I - Consistent Kv Fault202
Category II - Intermittent Kv Fault205
No Load Test209
Long Exposure Times with Light Films210
Long Exposure Times with Dark Films210
Apparent Small Focus Open Filament Condition210
No Ma Feedback210
No Kv Feedback or Improper Kv Feedback210
Theory of Operation211
Using the del Apr Utility to Manage Apr Databases223
Installation of the Program223
Necessary Hardware224
Operating the Program224
Initial Optimization of the APR Database226
Creating New Anatomical Views228
Uploading Modified APR Files229
Error Messages230
Interface Cable231
Renewal Parts232
APX 525/625 Control, Power Module, and AEC Device232
Power Supply Board232
Relay Control Board232
Ma/Rotor Board232
KV Regulator232
Mother Board232
110-0028G2 High Frequency Transformer234
Periodic Maintenance235
General Notes235
Test Equipment Required235
Inspection235
Preventive Maintenance Log237
Maintenance Equipment Upgrade / Modification Log238
Index239

Universal APX 525 - Page 221

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