Teledyne 6200T - Sulfides Analyzer User Manual
Page 13
6200T Total Sulfur Analyzer
Table of Contents
Teledyne Analytical Instruments
xiii
12.7.2. Sensor Module Repair & Cleaning ....................................................................................................262
12.8. M501TS Converter Maintenance ............................................................................................................277
12.8.1. Changing the Quartz Tube.................................................................................................................277
12.8.2. Checking the Converter Efficiency .....................................................................................................277
12.8.3. Sample Diluter Maintenance ..............................................................................................................279
12.8.4. Thermocouple Replacement ..............................................................................................................279
12.9. Frequently Asked Questions (FAQs) ....................................................................................................283
12.10. Technical Assistance ............................................................................................................................284
13. PRINCIPLES OF OPERATION ....................................................................................... 285
13.1. Sulfur Dioxide (SO
2
) Sensor Principles of operation ..........................................................................285
13.1.1. SO
2
Ultraviolet Fluorescence Measurement Principle .......................................................................285
13.1.2. The UV Light Path ..............................................................................................................................288
13.1.3. UV Source Lamp ................................................................................................................................289
13.1.4. The Reference Detector .....................................................................................................................289
13.1.5. The PMT ............................................................................................................................................289
13.1.6. UV Lamp Shutter & PMT Offset .........................................................................................................290
13.1.7. Optical Filters .....................................................................................................................................290
13.1.8. Optical Lenses ...................................................................................................................................293
13.1.9. Measurement Interferences ...............................................................................................................294
13.2. Oxygen (O
2
) Sensor Principles of Operation .......................................................................................295
13.2.1. Paramagnetic Measurement of O
2
.....................................................................................................295
13.2.2. O
2
Sensor Operation within the 6200T Analyzer ...............................................................................296
13.3. Carbon Dioxide (CO
2
) Sensor Principles of Operation .......................................................................297
13.3.1. NDIR Measurement of CO
2
...............................................................................................................297
13.3.2. CO
2
Operation within the 6200T Analyzer .........................................................................................298
13.3.3. Electronic Operation of the CO
2
Sensor ............................................................................................298
13.4. Pneumatic Operation ..............................................................................................................................299
13.4.1. Sample Gas Flow ...............................................................................................................................299
13.4.2. Flow Rate Control ..............................................................................................................................300
13.4.3. Hydrocarbon Scrubber (Kicker) .........................................................................................................301
13.4.4. Pneumatic Sensors ............................................................................................................................302
13.5. Electronic Operation ...............................................................................................................................303
13.5.1. CPU ....................................................................................................................................................305
13.5.2. Sensor Module ...................................................................................................................................306
13.5.3. Photo Multiplier Tube (PMT) ..............................................................................................................308
13.5.4. PMT Cooling System .........................................................................................................................310
13.5.5. PMT Preamplifier ...............................................................................................................................311
13.5.6. Pneumatic Sensor Board ...................................................................................................................313
13.5.7. Relay Board .......................................................................................................................................313
13.5.8. Motherboard .......................................................................................................................................315
13.5.9. Analog Outputs ..................................................................................................................................316
13.5.10. External Digital I/O ...........................................................................................................................317
13.5.11. I
2
C Data Bus ....................................................................................................................................317
13.5.12. Power up Circuit ...............................................................................................................................317
13.5.13. Power Supply/ Circuit Breaker .........................................................................................................317
13.6. Front Panel/Display Interface ................................................................................................................319
13.6.1. LVDS Transmitter Board ....................................................................................................................319
13.6.2. Front Panel Interface PCA .................................................................................................................319
13.7. Software Operation .................................................................................................................................320
13.7.1. Adaptive Filter ....................................................................................................................................320
13.7.2. Calibration - Slope and Offset ............................................................................................................321
13.7.3. Temperature and Pressure Compensation (TPC) Feature ...............................................................321
13.7.4. Internal Data Acquisition System (DAS) ............................................................................................322
14. A PRIMER ON ELECTRO-STATIC DISCHARGE .......................................................... 325
14.1. How Static Charges are Created ...........................................................................................................325
14.2. How Electro-Static Charges Cause Damage ........................................................................................326
14.3. Common Myths About ESD Damage ....................................................................................................327
14.4. Basic Principles of Static Control .........................................................................................................328