Campbell Scientific TGA100 Trace Gas Analyzer Manual - Manual (Page 7)

4.3 Finding the Absorption Line 52
4.4 Laser Mapping 53
4.5 Optimizing Laser Parameters 55
4.5.1 Laser Temperature 55
4.5.2 Zero Current 58
4.5.3 High Current 59
4.5.4 Omitted Data Count 62
4.5.5 Laser Modulation Current 63
4.5.6 Laser Maximum Temperature and Laser Maximum Current 63
4.5.7 Laser Multimode Correction 63
4.6 Optimizing Detector Parameters 64
4.6.1 Detector Gain and Offset 64
4.6.2 Detector Temperature 65
4.6.3 Detector Linearity Coefficients 65
4.7 Calibration 66
5 SAMPLING SYSTEM CONTROL 67
5.1 GRADIENT MEASUREMENTS 67
5.1.1 Gradient Overview 67
5.1.2 Gradient Calculations 68
5.1.3 Real time display 70
5.1.4 Controlling Gradient Valve Assemblies 70
5.1.5 Controlling a Gradient Site Selection Assembly 72
5.1.6 Gradient Mode Parameters 74
5.1.7 Gradient Mode Setup 75
5.2 SITE MEANS MEASUREMENTS 80
5.2.1 Site Means Overview 80
5.2.2 Site Means Calculations 81
5.2.3 Real Time Display 83
5.2.4 Controlling a Site Means Sampling System 83
5.2.5 Site Means Parameters 84
5.3 MASTER/SLAVE OPERATION 85
5.3.1 Master/Slave Setup 85
5.3.2 Master/Slave Operation 86
5.3.3 Shift and Omit Samples 86
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