Teledyne 501 TRS, Operation Manual, Page: 12 / 111

TABLE OF CONTENTS Teledyne API - T102/501 TRS, Addendum to T101 Operation Manual
x
9.1.1.3. Changing the SO
2
Scrubber Material ............................................................................. 54
10. THEORY OF OPERATION ............................................................................................................55
10.1. Measurement Principle ........................................................................................................... 55
10.1.1. TRS Conversion .............................................................................................................. 55
10.1.2. SO
2
Ultraviolet Fluorescence ............................................................................................. 56
10.2. The UV Light Path .................................................................................................................. 58
10.2.1. UV Lamp Shutter & PMT Offset ......................................................................................... 58
10.3. Pneumatic Operation .............................................................................................................. 59
10.3.1. Sample gas Flow ............................................................................................................. 59
10.3.2. M501 SO
2
Scrubber ......................................................................................................... 59
10.4. Electronic Operation ............................................................................................................... 60
10.4.1. Sensor Module ................................................................................................................ 60
10.4.1.1. Sample Chamber ...................................................................................................... 61
10.4.1.2. Sample Chamber Heating Circuit ................................................................................ 61
10.4.2. M501-TRS Electronics ...................................................................................................... 62
10.4.2.1. Thermal Switch ........................................................................................................ 62
10.4.2.2. Temperature Alarms and Alarm Output ....................................................................... 63
11. TROUBLESHOOTING AND REPAIR .............................................................................................65
11.1.1. Fault Diagnosis with Warning Messages ............................................................................. 65
11.1.1.1. T102 Warning Messages ............................................................................................ 65
11.1.1.2. M501-TRS Error Codes .............................................................................................. 65
11.1.2. Fault Diagnosis with Test Functions ................................................................................... 66
11.2. M501-TRS Troubleshooting ..................................................................................................... 67
11.2.1. TRS Converter Not Heating: ............................................................................................. 67
11.3. Other Performance Problems ................................................................................................... 68
11.3.1. Excessive noise ............................................................................................................... 68
11.4. Subsystem Checkout .............................................................................................................. 68
11.4.1. Checking the Efficiency of the M501-TRS SO
2
Scrubber ........................................................ 68
11.4.2. Checking the Efficiency of the M501-TRS TRS

SO
2
Converter ............................................ 68
11.5. Additional Repair Procedures ................................................................................................... 70
11.5.1. UV Lamp Adjustment and/or Replacement .......................................................................... 71
11.5.1.1. Adjusting the UV Lamp (Peaking the Lamp) ................................................................. 71
11.5.1.2. Replacing the UV Lamp.............................................................................................. 72
11.5.2. Replacing the UV Filter/Lens .............................................................................................. 73
11.5.3. Replacing the PMT, HVPS or TEC ....................................................................................... 74
11.5.4. T102 PMT Hardware Calibration (FACTORY CAL).................................................................. 77
11.5.5. Replacing the TRS Converter Heating Tube ......................................................................... 80
11.5.6. Replacing the Thermocouple ............................................................................................. 81
11.6. Manually Programming the M501-TRS Temperature Controller .................................................... 84
11.6.1. Temperature Controller Primary Menu Parameters ............................................................... 85
11.7. Technical Assistance .............................................................................................................. 87
LIST OF APPENDICES
APPENDIX A - VERSION SPECIFIC SOFTWARE DOCUMENTATION
APPENDIX A-1: T102 Software Menu Trees, Revision A.2
APPENDIX A-2: Setup Variables For Serial I/O, Revision A.2
APPENDIX A-3: Warnings and Test Functions, Revision A.2
APPENDIX A-4: T102 Signal I/O Definitions, Revision A.2
APPENDIX A-5: T102 iDAS Functions, Revision A.2
APPENDIX B - T102 SPARE PARTS LIST
APPENDIX C - T102 REPAIR REQUEST FORM
APPENDIX D - ELECTRONIC SCHEMATICS
07267B DCN6485