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ONTENTS
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Julu 2000 Rosemount Analytical 748446-AModel CAT 200 Continuous Analysis Transmitter
FIGURES
1-1. CAT 200 Continuous Analyzer Transmitter ............................................ 1
2-1. Absorption Bands of Sample Gas and Transmittance of
Interference Filters........................................................................ 4
2-2. Opto-Pneumatic Gas Detector................................................................. 5
2-3. Overall NDIR Method............................................................................... 7
2-4. Paramagnetic Oxygen Analysis............................................................... 9
2-5. Electrochemical Oxygen Sensor.............................................................. 10
2-6. Reaction of Galvanic Cell......................................................................... 11
2-7. Thermal Conductivity Sensor................................................................... 12
2-8. Response Time vs Flow Rate Dependence............................................. 13
3-1. Outline and Mounting Dimensions........................................................... 16
3-2. Gas Connections..................................................................................... 17
3-3. Piping Diagram (Example)....................................................................... 18
3-4. Internal Gas Paths (example).................................................................. 20
3-5. Increased Safety Junction Box Terminals................................................ 25
3-6. Leak Test Flow Indicator Method............................................................. 26
3-7. Leak Test Manometer Method................................................................. 27
5-1. CAT 200 Enclosure Assembly................................................................. 146
5-2. Analyzer Component Layout (Two IR channels / oxygen measurement,
combined)..................................................................................... 156
5-3. Analyzer Component Layout (Two IR channels / oxygen measurement,
combined)..................................................................................... 157
5-4. Analyzer Component Layout (Two IR channels / oxygen measurement,
combined)..................................................................................... 158
5-5. Analyzer Component Layout (Card Cage and PCB Locations)............... 159
5-6. Plug Locations PCB PIC.......................................................................... 160
5-7. Analyzer Rear Panel Layout.................................................................... 162
5-8. SIO/DIO Pin Assignments (option) (front view of connectors)................. 163
5-9. Pin Assignments DC Power Connector................................................... 164
5-10. TC Sensor Standard (short) Response Time Setting .............................. 165
5-11. TC Sensor Long Response Time Setting ................................................ 166
5-12. Analyzer Photometer Assembly ( 2 channel IR, electrochemical oxygen
analyzer, viewed from top)............................................................ 168
5-13. Chopper Housing with IR Light Sources.................................................. 169
5-14. Photometer Assembly (1 mm to 10 mm cells)......................................... 170
5-15. Photometer Assembly (30 mm to 200 mm cells)..................................... 170
5-16. PCB OXS Measuring Points.................................................................... 174
5-17. Front Panel Rear View with Oxygen Sensor............................................ 175
5-18. PCB OXS Connections & Measuring Points............................................ 176
5-19. Photometer Block Diagram...................................................................... 177
5-20. PCB VVS................................................................................................. 178
5-21. PCB MOP................................................................................................ 179