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Teledyne API - T200 NO/NO
12.7.7. Pressure / Flow Sensor Assembly .....................................................................................................255
12.7.8. CPU ....................................................................................................................................................256
12.7.9. RS-232 Communications ...................................................................................................................256
12.7.10. NO2 NO Converter ......................................................................................................................257
12.7.11. Determining CE by Simplified GPT Calibration ...............................................................................262
12.7.12. Photomultiplier Tube (PMT) Sensor Module....................................................................................265
12.7.13. PMT Preamplifier Board ...................................................................................................................267
12.7.14. PMT Temperature Control PCA .......................................................................................................268
Generator ....................................................................................................................................269
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12.7.16. Internal Span Gas Generator and Valve Options ............................................................................270
12.7.17. Temperature Sensor ........................................................................................................................271
12.8. Service Procedures ...................................................................................................................................272
12.8.1. Disk-On-Module Replacement Procedure .........................................................................................272
12.8.2. O
Generator Replacement ...............................................................................................................273
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12.8.3. Sample and Ozone Dryer Replacement ............................................................................................273
12.8.4. PMT Sensor Hardware Calibration ....................................................................................................274
12.8.5. Replacing the PMT, HVPS or TEC ....................................................................................................276
12.8.6. Removing / Replacing the Relay PCA from the Instrument ...............................................................279
12.9. Frequently Asked Questions .....................................................................................................................280
12.10. Technical Assistance ..............................................................................................................................282
13. PRINCIPLES OF OPERATION ...................................................................................... 283
13.1. Measurement Principle .............................................................................................................................283
13.1.1. Chemiluminescence Creation in the T200 Reaction Cell ..................................................................283
13.1.2. Chemiluminescence Detection in the T200 Reaction Cell .................................................................285
and NO
X
13.1.4. Auto Zero ...........................................................................................................................................287
13.1.5. Measurement Interferences ...............................................................................................................288
13.2. Pneumatic Operation ................................................................................................................................291
13.2.1. Sample Gas Flow ...............................................................................................................................291
13.2.2. Flow Rate Control - Critical Flow Orifices ..........................................................................................293
13.2.3. Ozone Gas Generation and Air Flow .................................................................................................296
13.2.4. Pneumatic Sensors ............................................................................................................................300
13.3. Electronic Operation ..................................................................................................................................302
13.3.1. Overview ............................................................................................................................................302
13.3.2. CPU ....................................................................................................................................................304
13.3.3. Motherboard .......................................................................................................................................305
13.3.4. Relay PCA .........................................................................................................................................310
13.4. Sensor Module ..........................................................................................................................................316
13.5. Photo Multiplier Tube (PMT) .....................................................................................................................316
13.5.1. PMT Preamplifier ...............................................................................................................................317
13.5.2. PMT Cooling System .........................................................................................................................319
13.6. Pneumatic Sensor Board ..........................................................................................................................320
13.7. Power Supply/Circuit Breaker ...................................................................................................................321
13.7.1. AC Power Configuration ....................................................................................................................322
13.8. Front Panel Touchscreen/Display Interface ..............................................................................................327
13.8.1. LVDS Transmitter Board ....................................................................................................................328
13.8.2. Front Panel Touchscreen/Display Interface PCA ..............................................................................328
13.9. Software Operation ...................................................................................................................................328
13.9.1. Adaptive Filter ....................................................................................................................................329
13.9.2. Temperature/Pressure Compensation (TPC) ....................................................................................329
13.9.3. Calibration - Slope and Offset ............................................................................................................330
Glossary .............................................................................................................................................................331
Index ...................................................................................................................................................................335
APPENDIX A - VERSION SPECIFIC SOFTWARE DOCUMENTATION
APPENDIX B - SPARE PARTS
APPENDIX C - REPAIR QUESTIONNAIRE
APPENDIX D - ELECTRONIC SCHEMATICS
06858E DCN7057
Analyzer Operation Manual
2
X
Determination ..............................................................................................................286
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Troubleshooting
