xii Table of Contents 083730300A DCN8101
Figure 4-5. CO
2
Sensor Calibration Set Up ............................................................................................................101
Figure 5-1: Report Generation Page ......................................................................................................................106
Figure 5-2. Remote Update Page...........................................................................................................................107
Figure 5-3. Manual Update Page (and other utilities).............................................................................................107
Figure 5-4. Touchscreen Calibration Page .............................................................................................................108
Figure 5-5. Time Zone Change Requirements .......................................................................................................109
Figure 5-6. Sample Particulate Filter Assembly .....................................................................................................110
Figure 5-7. CPU Status Indicator ............................................................................................................................118
Figure 5-8. Sync/Demod Board Status LED Locations ..........................................................................................119
Figure 5-9. Relay Board Status LEDs ....................................................................................................................120
Figure 5-10. Typical Set Up of Status Output Test .................................................................................................133
Figure 5-11. Location of Diagnostic LEDs onCO
2
Sensor PCA .............................................................................134
Figure 5-12. Critical Flow Restrictor Assembly/Disassembly .................................................................................135
Figure 5-13. Opening the GFC Wheel Housing .....................................................................................................136
Figure 5-14. Removing the Opto-Pickup Assembly ...............................................................................................137
Figure 5-15. Removing the GFC Wheel Housing ...................................................................................................137
Figure 5-16. Removing the GFC Wheel .................................................................................................................138
Figure 5-17. Location of Sync/Demod Housing Mounting Screws .........................................................................139
Figure 5-18. Location of Sync/Demod Gain Potentiometer ....................................................................................139
Figure 6-1. Measurement Fundamentals ...............................................................................................................145
Figure 6-2. GFC Wheel ..........................................................................................................................................145
Figure 6-3. Measurement Fundamentals with GFC Wheel ....................................................................................146
Figure 6-4. Effect of CO in the Sample on CO MEAS & CO REF ..........................................................................147
Figure 6-5. Effects of Interfering Gas on CO MEAS & CO REF ............................................................................147
Figure 6-6. Chopped IR Signal ...............................................................................................................................148
Figure 6-7. Internal Pneumatic Flow – Basic Configuration ...................................................................................149
Figure 6-8. Flow Control Assembly & Critical Flow Orifice .....................................................................................150
Figure 6-9. Electronic Block Diagram .....................................................................................................................152
Figure 6-10. CPU Board .........................................................................................................................................153
Figure 6-11. GFC Light Mask .................................................................................................................................155
Figure 6-12. Segment Sensor and M/R Sensor Output .........................................................................................156
Figure 6-13. T300/T300M Sync/Demod Block Diagram.........................................................................................157
Figure 6-14. Sample & Hold Timing .......................................................................................................................158
Figure 6-15. Location of relay board Status LEDs .................................................................................................160
Figure 6-16. Power Distribution Block Diagram .....................................................................................................164
Figure 6-17. Front Panel and Display Interface Block Diagram .............................................................................165
Figure 6-18. Basic Software Operation ..................................................................................................................166
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