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Teledyne API –Operation Manual - Model 300E Family CO Analyzers Table of Contents
xiii
9.7. Calibration of Optional Sensors ................................................................................................................. 209
9.7.1. O
2
Sensor Calibration Procedure........................................................................................................ 209
9.7.1.1. O
2
Calibration Setup.................................................................................................................... 209
9.7.1.2. Set O
2
Span Gas Concentration.................................................................................................. 210
9.7.1.3. Activate O
2
Sensor Stability Function.......................................................................................... 211
9.7.1.4. O
2
ZERO/SPAN CALIBRATION................................................................................................... 212
9.7.2. CO
2
Sensor Calibration Procedure..................................................................................................... 213
9.7.2.1. CO
2
Calibration Setup ................................................................................................................. 213
9.7.2.2. Set CO
2
Span Gas Concentration:.............................................................................................. 213
9.7.2.3. Activate CO
2
Sensor Stability Function ....................................................................................... 214
9.7.2.4. CO
2
Zero/Span Calibration.......................................................................................................... 215
10. EPA CALIBRATION PROTOCOL ................................................................................. 217
10.1. Calibration Requirements......................................................................................................................... 217
10.1.1. Calibration of Equipment - General Guidelines ................................................................................ 217
10.1.2. Calibration Equipment, Supplies, and Expendables......................................................................... 218
10.1.2.1. Data Recording Device.............................................................................................................. 218
10.1.2.2. Spare Parts and Expendable Supplies...................................................................................... 218
10.1.3. Recommended Standards for Establishing Traceability................................................................... 219
10.1.4. Calibration Frequency....................................................................................................................... 220
10.1.5. Level 1 Calibrations versus Level 2 Checks..................................................................................... 220
10.2. ZERO and SPAN Checks ........................................................................................................................ 221
10.2.1. Zero/Span Check Procedures .......................................................................................................... 222
10.2.2. Precision Check ................................................................................................................................ 222
10.3. Precisions Calibration .............................................................................................................................. 222
10.3.1. Precision Calibration Procedures ..................................................................................................... 223
10.4. Auditing Procedure................................................................................................................................... 223
10.4.1. Calibration Audit................................................................................................................................ 223
10.4.2. Data Reduction Audit........................................................................................................................ 223
10.4.3. System Audit/Validation.................................................................................................................... 224
10.5. Dynamic Multipoint Calibration Procedure............................................................................................... 224
10.5.1. Linearity test...................................................................................................................................... 224
10.6. References............................................................................................................................................... 226
PART III – TECHNICAL INFORMATION ............................................................................. 227
11. THEORY OF OPERATION ............................................................................................ 229
11.1. Measurement Method .............................................................................................................................. 229
11.1.1. Beer’s Law ........................................................................................................................................ 229
11.2. Measurement Fundamentals ................................................................................................................... 229
11.2.1. Gas Filter Correlation........................................................................................................................ 230
11.2.1.1. The GFC Wheel......................................................................................................................... 231
11.2.1.2. The Measure Reference Ratio .................................................................................................. 232
11.2.1.3. Summary Interference Rejection............................................................................................... 233
11.3. Pneumatic Operation ............................................................................................................................... 234
11.4. Flow Rate Control .................................................................................................................................... 235
11.4.1.1. Critical Flow Orifice.................................................................................................................... 235
11.4.2. Particulate Filter................................................................................................................................ 236
11.4.3. Pneumatic Sensors........................................................................................................................... 236
11.4.3.1. Sample Pressure Sensor .......................................................................................................... 236
11.4.3.2. Sample Flow Sensor ................................................................................................................. 236
11.5. Electronic Operation................................................................................................................................. 237
11.5.1. Overview ........................................................................................................................................... 237
11.5.2. Central Processing Unit (CPU) ......................................................................................................... 239
11.5.3. Optical Bench & GFC Wheel ............................................................................................................ 240
11.5.3.1. Temperature Control ................................................................................................................. 240
11.5.3.2. IR Source................................................................................................................................... 240
11.5.3.3. GFC Wheel................................................................................................................................ 240
11.5.3.4. IR Photo-Detector...................................................................................................................... 242
11.5.4. Synchronous Demodulator (Sync/Demod) Assembly ...................................................................... 242
04288D DCN5752