Teledyne 100E - Page 8

Model 100E Instruction Manual
vi 045150102 Rev XB1
7.8. Automatic Calibration (AutoCal)........................................................ 139
7.9. Calibration Quality .......................................................................... 142
8. EPA PROTOCOL CALIBRATION .......................................................... 143
8.1. Calibration Requirements ................................................................ 143
8.1.1. Calibration of Equipment ......................................................................143
8.1.2. Data Recording Device .........................................................................145
8.1.3. Recommended Standards for Establishing Traceability ..............................145
8.1.4. EPA Calibration Using Permeation Tubes .................................................146
8.1.5. Calibration Frequency ..........................................................................146
8.1.6. Record Keeping...................................................................................146
8.1.7. Summary of Quality Assurance Checks ...................................................147
8.2. Level 1 Calibrations versus Level 2 Checks......................................... 147
8.3. ZERO and SPAN Checks .................................................................. 148
8.3.1. Zero/Span Check Procedures ................................................................150
8.4. Precisions Calibration Procedures and Checks ..................................... 150
8.4.1. Precision Calibration ............................................................................151
8.4.2. Precision Check...................................................................................151
8.5. Dynamic Multipoint Span Calibration ................................................. 151
8.6. Special Calibration Requirements for Dual Range or Auto Range............ 152
8.7. References .................................................................................... 152
9. INSTRUMENT MAINTENANCE ............................................................ 155
9.1. Maintenance Schedule..................................................................... 156
9.2. Predictive Diagnostics ..................................................................... 157
9.3. Maintenance Procedures.................................................................. 157
9.3.1. Changing the Sample Particulate Filter ...................................................157
9.3.2. Changing the IZS Permeation Tube........................................................159
9.3.3. Changing the External Zero Air Scrubber ................................................159
9.3.4. Cleaning the Sample chamber...............................................................161
9.3.5. Cleaning or Changing Critical Flow Orifices ..............................................162
9.3.6. Checking for Light Leaks ......................................................................162
10. THEORY OF OPERATION .................................................................. 163
10.1. Measurement Principle .................................................................. 163
10.1.1. SO
2
Ultraviolet Fluorescence................................................................163
10.2. The UV Light Path ......................................................................... 166
10.2.1. UV Source Lamp................................................................................166
10.2.2. The Reference Detector ......................................................................167
10.2.3. The PMT ...........................................................................................167
10.2.4. Optical Filters....................................................................................167
10.2.5. Optical Lenses...................................................................................169
10.2.6. Measurement Interferences.................................................................170
10.2.6.1. Direct Interference.......................................................................170
10.2.6.2. UV Absorption by Ozone ...............................................................170
10.2.6.3. Dilution ......................................................................................171
10.2.6.4. Third Body Quenching ..................................................................171
10.2.6.5. Light Pollution .............................................................................171
10.3. Pneumatic Operation..................................................................... 172