Teledyne 100E - Page 9

Model 100E Instruction Manual
045150102 Rev XB1 vii
10.3.1. Sample Gas Flow ...............................................................................172
10.3.2. Flow Rate Control ..............................................................................173
10.3.2.1. Critical Flow Orifice ......................................................................173
10.3.3. Sample Particulate Filter.....................................................................174
10.3.4. Hydrocarbon Scrubber (Kicker)............................................................174
10.3.5. Pneumatic Sensors ............................................................................175
10.3.5.1. Sample Pressure Sensor ...............................................................175
10.3.5.2. Sample Flow Sensor .....................................................................175
10.4. Electronic Operation...................................................................... 176
10.4.1. CPU .................................................................................................177
10.4.1.1. Disk On Chip ...............................................................................178
10.4.1.2. Flash Chip...................................................................................178
10.4.2. Sensor Module & Sample chamber .......................................................179
10.4.3. Sample Chamber Heating Circuit .........................................................179
10.4.4. Photo Multiplier Tube (PMT) ................................................................180
10.4.5. PMT Cooling System. .........................................................................181
10.4.5.1. Thermoelectric Cooler (TEC) ..........................................................181
10.4.5.2. TEC Control Board .......................................................................182
10.4.6. PMT Preamplifier ...............................................................................182
10.4.7. Pneumatic Sensor Board.....................................................................183
10.4.8. Relay Board ......................................................................................184
10.4.8.1. Heater Control.............................................................................184
10.4.8.2. Valve Control ..............................................................................184
10.4.9. Status LEDs & Watch Dog Circuitry ......................................................185
10.4.10. Motherboard ...................................................................................186
10.4.10.1. A to D Conversion ......................................................................186
10.4.10.2. Sensor Inputs............................................................................186
10.4.10.3. Thermistor Interface...................................................................187
10.4.11. Analog Outputs................................................................................187
10.4.12. External Digital I/O ..........................................................................188
10.4.13. I
2
C Data Bus ...................................................................................188
10.4.14. Power up Circuit ..............................................................................188
10.5. Power Supply/ Circuit Breaker ........................................................ 188
10.6. Communications Interface ............................................................. 190
10.6.1. Front Panel Interface..........................................................................191
10.6.1.1. Analyzer Status LED’s...................................................................191
10.6.1.2. Keyboard....................................................................................191
10.6.1.3. Display.......................................................................................192
10.6.1.4. Keyboard/Display Interface Electronics ...........................................192
10.7. Software Operation....................................................................... 194
10.7.1. Adaptive Filter...................................................................................194
10.7.2. Calibration - Slope and Offset..............................................................195
10.7.3. Temperature and Pressure Compensation (TPC) Feature .........................195
10.7.4. Internal Data Acquisition System (iDAS) ...............................................196
11. TROUBLESHOOTING & REPAIR........................................................ 197
11.1. General Troubleshooting ................................................................ 197
11.1.1. Warning Messages .............................................................................198
11.1.2. Fault Diagnosis with Test Functions ......................................................199
11.1.3. Using the Diagnostic Signal I/O Function...............................................199