Teledyne GFC 7001EM operation manual 217, 227, 229

Table of Contents	Model GFC7001E Carbon Dioxide Analyzer
9.7. Calibration of Optional Sensors		209
9.7.1. O2 Sensor Calibration Procedure		209
9.7.1.1. O2 Calibration Setup		209
9.7.1.2. Set O2 Span Gas Concentration		210
9.7.1.3. Activate O2	Sensor Stability Function	211
9.7.1.4. O2ZERO/SPAN CALIBRATION		212
9.7.2. CO2 Sensor Calibration Procedure		213
9.7.2.1. CO2 Calibration Setup		213
9.7.2.2. Set CO2 Span Gas Concentration:		213
9.7.2.3. Activate CO2 Sensor Stability Function		214
9.7.2.4. CO2 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
	Teledyne Analytical Instruments	13