Teledyne 9110TH - Nitrogen Oxides Analyzer - Manual (Page 16)

Model 9110TH NOx Analyzer Table of Contents
Teledyne Analytical Instruments xvi
8.3.8. Ozone Supply Air Filter ......................................................................................................................................... 274
8.3.9. Ozone Scrubber ................................................................................................................................................... 274
8.3.10. Pneumatic Sensors ............................................................................................................................................. 275
8.3.11. Dilution Manifold ................................................................................................................................................. 276
8.4. Oxygen Sensor (OPT 65A) Principles of Operation ..................................................................................................... 277
8.4.1. Paramagnetic Measurement of O
2
........................................................................................................................ 277
8.4.2. Operation Within the 9110TH/M Analyzer ............................................................................................................ 278
8.4.3. Pneumatic Operation of the O
2
Sensor ................................................................................................................. 278
8.5. Electronic Operation ..................................................................................................................................................... 279
8.5.1. CPU ...................................................................................................................................................................... 280
8.5.2. Sensor Module, Reaction Cell .............................................................................................................................. 281
8.5.3. Photo Multiplier Tube (PMT) ................................................................................................................................. 282
8.5.4. PMT Cooling System ............................................................................................................................................ 284
8.5.5. PMT Preamplifier .................................................................................................................................................. 284
8.5.6. Pneumatic Sensor Board ...................................................................................................................................... 286
8.5.7. Relay Board .......................................................................................................................................................... 286
8.5.8. Status LEDs & Watch Dog Circuitry...................................................................................................................... 290
8.5.9. Motherboard ......................................................................................................................................................... 291
8.5.10. Analog Outputs ................................................................................................................................................... 293
8.5.11. External Digital I/O .............................................................................................................................................. 293
8.5.12. I 2 C Data Bus ....................................................................................................................................................... 293
8.5.13. Power-up Circuit ................................................................................................................................................. 293
8.6. Power Distribution & Circuit Breaker ............................................................................................................................ 294
8.7. Front Panel/Display Interface Electronics ..................................................................................................................... 295
8.7.1. Front Panel Interface PCA .................................................................................................................................... 295
8.8. Software Operation ...................................................................................................................................................... 296
8.8.1. Adaptive Filter ....................................................................................................................................................... 297
8.8.2. Calibration - Slope and Offset ............................................................................................................................... 297
8.8.3. Temperature/Pressure Compensation (TPC) ....................................................................................................... 298
8.8.4. NO
2
Converter Efficiency Compensation .............................................................................................................. 299
8.8.5. Internal Data Acquisition System (DAS) ............................................................................................................... 299
9. A Primer on Electro-Static Discharge ................................................................................................................................... 301
9.1. How Static Charges are Created .................................................................................................................................. 301
9.2. How Electro-Static Charges Cause Damage ................................................................................................................ 302
9.3. Common Myths About ESD Damage ........................................................................................................................... 303
9.4. Basic Principles of Static Control .................................................................................................................................. 304
9.4.1. General Rules ....................................................................................................................................................... 304
9.4.2. Basic anti-ESD Procedures for Analyzer Repair and Maintenance ...................................................................... 305
Glossary ................................................................................................................................................................................... 311
LIST OF FIGURES
Figure 3-1: Front Panel .................................................................................................................................... 9
Figure 3-2: Display Screen and Touch Control ................................................................................................ 9
Figure 3-3: Display/Touch Control Screen Mapped to Menu Charts ............................................................. 11
Figure 3-4: 9110TH/M Rear Panel Layout ..................................................................................................... 12
Figure 3-5: 9110TH/M Internal Layout ........................................................................................................... 13
Figure 3-6: Analog In Connector .................................................................................................................... 15
Figure 3-7: Analog Output Connector ............................................................................................................ 16
Figure 3-8: Status Output Connector ............................................................................................................. 17
Figure 3-9: Current Loop Option Installed on the Motherboard ..................................................................... 18
Figure 3-10: Control Input Connector ............................................................................................................... 20
Figure 3-11: Alarm Relay Output Pin Assignments .......................................................................................... 21
Figure 3-12: 9110TH/M Multidrop Card ........................................................................................................... 23
Figure 3-13: Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator ............................. 26
Figure 3-14: Pneumatic Connections–Basic Configuration–Using Bottled Span Gas ..................................... 27
Figure 3-15: 9110TH Internal Pneumatic Block Diagram - Standard Configuration ........................................ 29
Figure 3-16: 9110TM Internal Pneumatic Block Diagram - Standard Configuration ........................................ 30
Figure 3-17: Pneumatic Connections–With Zero/Span Valve Option (50A) .................................................... 31
Figure 3-18: Pneumatic Connections–With 2-Span point Option (50D) –Using Bottled Span Gas ................. 31