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Table of Contents Teledyne API T801 NDIR CO2 Analyzer Operation Manual
xii
12.2.1. Electronic Operation of the CO
2
Sensor............................................................................................204
12.3. Pneumatic Operation................................................................................................................................205
12.4. Flow Rate Control.....................................................................................................................................206
12.4.1. Critical Flow Orifice............................................................................................................................206
12.4.2. Particulate Filter.................................................................................................................................207
12.4.3. Pneumatic Sensors ...........................................................................................................................208
12.5. Electronic Operation .................................................................................................................................208
12.5.1. Overview............................................................................................................................................208
12.5.2. Central Processing Unit (CPU)..........................................................................................................209
12.5.3. Relay Board.......................................................................................................................................210
12.5.4. Motherboard ......................................................................................................................................213
12.5.5. Power Supply / Circuit Breaker .........................................................................................................215
12.5.6. Front Panel Touch Screen/Display Interface ....................................................................................216
12.5.7. Software Operation............................................................................................................................218
12.5.8. Adaptive Filter....................................................................................................................................218
12.5.9. Calibration - Slope and Offset ...........................................................................................................219
12.5.10. Temperature and Pressure Compensation.....................................................................................219
12.5.11. Internal Data Acquisition System (DAS) .........................................................................................219
13. A PRIMER ON ELECTRO-STATIC DISCHARGE .........................................................221
13.1. How Static Charges are Created..............................................................................................................221
13.2. How Electro-Static Charges Cause Damage ...........................................................................................222
13.3. Common Myths About ESD Damage.......................................................................................................223
13.4. Basic Principles of Static Control..............................................................................................................224
13.4.1. General Rules....................................................................................................................................224
13.4.2. Basic Anti-ESD Procedures for Analyzer Repair and Maintenance..................................................225
Glossary.............................................................................................................................................................229
INDEX................................................................................................................................................................233
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: T801 Internal Gas Flow.................................................................................................. 49
Figure 3-18: Viewing and Clearing WARNING Messages ................................................................51
Figure 4-1: Front Panel Touchscreen and Display........................................................................... 58
Figure 4-2: Viewing Test Functions .................................................................................................. 59
Figure 5-1: Analog Output Connector Pin Out..................................................................................65
Figure 5-2: Setup for Checking / Calibrating DCV Analog Output Signal Levels .............................91
Figure 5-3: Setup for Checking / Calibrating Current Output Signal Levels Using an Ammeter...... 93
07274B DCN6418