Document Outline

• TABLE OF CONTENTS
• OVERVIEW
  • System Components
  • Theory of Operation
    • Optical System
    • Laser Scan Sequence
    • Concentration Calculation
  • Trace Gas Species Selection
  • Dual Ramp Mode
  • User Interface
  • Micrometeorological Applications
    • Eddy Covariance
    • Flux Gradient
    • Site Means
    • Absolute Concentration / Isotope Ratio Measurements
  • Specifications
    • Measurement Specifications
    • Physical Specifications
• INSTALLATION
  • Analyzer Installation
  • TGA100 PC Installation
  • Routine Operation
    • Startup Procedure
    • Shutdown Procedure
    • System Checks
• TGA SOFTWARE
  • General
  • Startup
  • Main Menu
  • Real Time Screen
    • Screen Layout
    • Navigating and Editing
    • Run Mode
    • Dynamic Parameters
    • Detector Video
    • Functions
    • Graph Selections
    • Graph Display Limits
    • Quick Keys
  • Parameter Change Menu
    • Standard Parameter Screens
    • File Output Selection Screen
    • Analog Output Screen
    • Gradient and Site Means Screens
  • TGA Files
    • Parameter Files
    • 10 Hz Concentration Data Files
    • Gradient (Delta Concentration) Files
    • Site Means Files
    • Housekeeping Data File
    • Header Files
    • User Messages
• DETAILED SETUP INSTRUCTIONS
  • Configuring the System for a Specific Gas Species
    • Laser Selection
    • Reference Gas
    • Detectors
    • Air Gap Purge
    • Polyethylene Sample Cell Liner
  • Optical Alignment
    • Setting Parameters to Align a New Laser
    • Initial Alignment
    • Horizontal and Vertical Alignment
    • Focus Adjustment
    • Reference Detector Coalignment
  • Finding the Absorption Line
  • Laser Mapping
  • Optimizing Laser Parameters
    • Laser Temperature
    • Zero Current
    • High Current
      • High Current Counts
      • Ramp B High Current
    • Omitted Data Count
    • Laser Modulation Current
    • Laser Maximum Temperature and Laser Maximum Current
    • Laser Multimode Correction
  • Optimizing Detector Parameters
    • Detector Gain and Offset
    • Detector Temperature
    • Detector Linearity Coefficients
  • Calibration
• SAMPLING SYSTEM CONTROL
  • GRADIENT MEASUREMENTS
    • Gradient Overview
    • Gradient Calculations
    • Real time display
    • Controlling Gradient Valve Assemblies
    • Controlling a Gradient Site Selection Assembly
    • Gradient Mode Parameters
    • Gradient Mode Setup
      • Flow Rate
      • Tubing Length and Diameter
      • Setting Timing Parameters
  • SITE MEANS MEASUREMENTS
    • Site Means Overview
    • Site Means Calculations
    • Real Time Display
    • Controlling a Site Means Sampling System
    • Site Means Parameters
  • MASTER/SLAVE OPERATION
    • Master/Slave Setup
    • Master/Slave Operation
    • Shift and Omit Samples
• EDDY COVARIANCE MEASUREMENTS
  • Overview
  • Flow Rate and Tubing Size
• AUXILIARY INPUTS AND OUTPUTS
  • Reading Data from a CSAT3 Sonic Anemometer
  • Reading Data from a CR9000
  • Sending Concentration Data to a CR9000
  • TGA Analog Inputs
  • PC Analog Inputs
  • Analog Outputs
  • Digital Outputs
  • Excitation Source
• TGA100 OPTIONS
  • Laser Cooling
    • LN2DEWAR TGA100 LN2 Laser Dewar
    • CRYODEWAR TGA100 Laser Cryocooler System
  • Lasers
  • TGAHEAT Temperature Controller
• TGA100 ACCESSORIES
  • TGA100 Insulated Enclosure Cover
  • Dewar Evacuation System
  • Sample Vacuum Pump
  • Sample Air Dryers
    • General Description
    • Theory of Operation
    • Installation Instructions
      • Mounting the Dryer
      • Sample Inlet Filter
      • Tubing Connections
      • Split-Sample Configuration
      • Two-Dryer Configuration
• Troubleshooting
  • Fiber Optic Diagnostics
• Appendix A. Options for File Save and Real Time Display
• Appendix B: Default Parameter File