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Teledyne API T803 CO2/O2 Analyzer Operation Manual
xii
12.3. Operation within the T803 Analyzer .........................................................................................................208
12.4. Pneumatic Operation................................................................................................................................209
12.5. Flow Rate Control.....................................................................................................................................210
12.5.1. Critical Flow Orifice............................................................................................................................210
12.5.2. Particulate Filter.................................................................................................................................211
12.5.3. Pneumatic Sensors ...........................................................................................................................211
12.6. Electronic Operation .................................................................................................................................212
12.6.1. Overview............................................................................................................................................212
12.6.2. Central Processing Unit (CPU)..........................................................................................................213
12.6.3. Relay Board.......................................................................................................................................215
12.6.4. Heater Control ...................................................................................................................................217
12.6.5. Motherboard ......................................................................................................................................218
12.6.6. I
2
C Data Bus......................................................................................................................................219
12.6.7. Power Supply / Circuit Breaker .........................................................................................................220
12.6.8. Front Panel Touchscreen/Display Interface ......................................................................................221
12.6.9. Software Operation............................................................................................................................222
12.6.10. Adaptive Filter..................................................................................................................................222
12.6.11. Calibration - Slope and Offset .........................................................................................................223
12.6.12. Temperature and Pressure Compensation .....................................................................................223
12.6.13. Internal Data Acquisition System (DAS) .........................................................................................223
13. A PRIMER ON ELECTRO-STATIC DISCHARGE .........................................................225
13.1. How Static Charges are Created..............................................................................................................225
13.2. How Electro-Static Charges Cause Damage ...........................................................................................226
13.3. Common Myths About ESD Damage....................................................................................................... 227
13.4. Basic Principles of Static Control..............................................................................................................228
13.4.1. General Rules....................................................................................................................................228
13.4.2. Basic Anti-ESD Procedures for Analyzer Repair and Maintenance.................................................. 229
INDEX............................................................................................................................................................237
LIST OF FIGURES
Figure 3-1: Front Panel Layout ......................................................................................................... 25
Figure 3-2: Display Screen and Touch Control................................................................................. 26
Figure 3-3: Display/Touch Control Screen Mapped to Menu Charts................................................ 28
Figure 3-4: Rear Panel Layout..........................................................................................................29
Figure 3-5: Internal Layout................................................................................................................ 31
Figure 3-6: Analog In Connector....................................................................................................... 33
Figure 3-7: Analog Output Connector............................................................................................... 34
Figure 3-8: Current Loop Option Installed ........................................................................................ 35
Figure 3-9: Status Output Connector................................................................................................ 37
Figure 3-10: Control Input Connector ................................................................................................. 38
Figure 3-11: Concentration Alarm Relay ............................................................................................ 39
Figure 3-12: Default Pin Assignments, Rear Panel COM Port Connectors ....................................... 41
Figure 3-13: CPU Connector Pin-Outs for RS-232 Mode................................................................... 42
Figure 3-14: Jumper and Cables for Multidrop Mode ......................................................................... 44
Figure 3-15: RS-232-Multidrop PCA Host/Analyzer Interconnect Diagram........................................ 45
Figure 3-16: Pneumatic Connections, Using Bottled Span Gas......................................................... 48
Figure 3-17: T803 Internal Gas Flow .................................................................................................. 49
Figure 3-18: Viewing and Clearing T803 WARNING Messages ........................................................ 52
Figure 4-1: Front Panel Display ........................................................................................................ 58
Figure 4-2: Viewing T803 Test Functions ......................................................................................... 59
Figure 5-1: Analog Output Connector Pin Out.................................................................................. 65
Figure 5-2: Setup for Checking / Calibrating DCV Analog Output Signal Levels ............................. 89
Figure 5-3: Setup for Checking / Calibration Current Output Signal Levels Using an Ammeter ...... 91
Figure 5-4: Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels..... 93
07276B DCN6418