# LI-6800 Help Center - [LI-6800 Help Center](home.md): Product support landing page. ## Instruction Manual - [Instruction Manual](manuals.md) - [1. Introduction to the LI-6800](topics/introduction.md) - [What's What](topics/components.md) - [Chambers, Light Sources, and Accessories](topics/components-chambers.md) - [2. Assembling the LI-6800](topics/assembly.md) - [Powering](topics/powering.md) - [External Air Supply](topics/custom-inlet-gas.md) - [Tripods](topics/tripods.md) - [3. A Tour of the Interface](topics/guided-tours-preparation.md) - [The Start Up Tab](topics/startup-tab.md) - [The Constants Tab](topics/constants-tab.md) - [The Environment Tab](topics/environment-tab.md) - [Flow Control](topics/environment-flow-control.md) - [H2O Control](topics/environment-h2o-control.md) - [CO2 Control](topics/environment-co2-control.md) - [Mixing Fan Speed](topics/environment-mixing-fan.md) - [Temperature Control](topics/environment-temperature-control.md) - [Light Control](topics/environment-light-control.md) - [Auto Controls](topics/environment-auto-controls.md) - [The Measurements Tab](topics/measurements-tab.md) - [The Log Setup Tab](topics/log-files-tab.md) - [The Programs Tab](topics/programs-tab.md) - [The Tools Tab](topics/tools-tab.md) - [4. Working with Files](topics/logged-data.md) - [Transfering Files to a Computer](topics/file-transfer.md) - [Directory Map](topics/directory-map.md) - [Folders](topics/folders-and-data-files.md) - [Summary of Symbols](topics/symbols.md) - [5. System Tests and Messages](topics/troubleshooting-intro.md) - [Warmup Tests](topics/system-tests-warmup.md) - [Controller Tests](topics/system-tests-controller.md) - [Fluorometer Tests](topics/system-tests-fluorometer.md) - [Status Messages](topics/troubleshooting-messages.md) - [6. Troubleshooting](topics/troubleshooting-problems.md) - [7. Maintenance and Calibration](topics/maintenance.md) - [Calibration](topics/calibration.md) - [Intake Air Filter](topics/intake-filter.md) - [Columns](topics/columns.md) - [Head Maintenance](topics/maintenance-head.md) - [Storing the LI-6800](topics/storing.md) - [Preparation for Shipping](topics/transporting.md) - [8. The Fluorescence System](topics/fluorometer-introduction.md) - [What's What](topics/fluorometer-components.md) - [Installing the Fluorometer](topics/chamber-fluorometer-installation.md) - [Fluorometer Controls](topics/fluorometer-controls.md) - [The Fluorometer Tour](topics/fluorometer-tour.md) - [Chlorophyll Fluorescence Measurments](topics/fluorometer-experiments.md) - [Optimizing Flash Settings](topics/fluorometer-settings-optimization.md) - [Fluorescence Analysis Tools](topics/fluorescence-analysis-tools.md) - [The FlashAnalysis Application](topics/flash-analysis-app.md) - [Custom Flash Events](topics/custom-flash-events.md) - [Custom Events Parameter Reference](topics/custom-events-parameter-reference.md) - [Custom Events Meta Commands](topics/custom-events-meta-commands.md) - [Custom Events File Structure](topics/custom-events-file-structure.md) - [User-defined Meta Extras](topics/user-defined-meta-extras.md) - [Maintenance](topics/maintenance-fluorometer.md) - [References](topics/references.md) - [9. Leaf Chambers](topics/leaf-chambers-intro.md) - [What's What](topics/chambers-overview.md) - [Installing the Small Chamber and Light Source](topics/chamber-3x3.md) - [Leaf Chamber Controls](topics/leaf-measurement-controls.md) - [Making leaf-level measurements](topics/making-leaf-level-measurements.md) - [Matching the IRGAs](topics/matching-the-analyzers.md) - [Dynamic Assimilation Technique](topics/dynamic-assimilation-technique.md) - [Leaf Measurement Examples](topics/leaf-measurement-examples-intro.md) - [Carbon Dioxide Response Curves](topics/co2-response-curves.md) - [Light Response Curves](topics/light-response-curves.md) - [Fluorescence and gas exchange experiments](topics/fluorometer-gas-exchange-experiments.md) - [More Chamber Options](topics/chambers-more-options.md) - [Installing the Large Chamber and Light Source](topics/chamber-6x6.md) - [Light Source Extension Cable](topics/light-source-extension-cable.md) - [Sprig Adapter Kit](topics/sprig-blocks.md) - [Bryophyte Chamber](topics/chamber-bryophyte.md) - [Small Plant Chamber](topics/chamber-plant.md) - [Insect Respiration Chamber](topics/chamber-insect.md) - [Custom Chamber Adapter](topics/chamber-custom.md) - [Auxiliary Channels](topics/auxiliary-channels.md) - [Maintenance](topics/maintenance-chambers.md) - [Leaf Temperature Thermocouple](topics/leaf-thermocouple.md) - [Replacing the Chamber Ducts](topics/chamber-ducts.md) - [LED Source Maintenance](topics/led-source-maintenance.md) - [Mass Balance Derivation](topics/mass-balance-derivation.md) - [10. Aquatic Chamber](topics/chamber-aquatic-intro.md) - [What's What](topics/chamber-aquatic-components.md) - [Installing the Aquatic Chamber](topics/chamber-aquatic-installation.md) - [The Aquatic Chamber Controls](topics/chamber-aquatic-software.md) - [Preparing for Measurements](topics/chamber-aquatic-preparing.md) - [Measuring Media Response Time](topics/chamber-aquatic-response-time.md) - [Determining Light Transfer Through a Sample](topics/chamber-aquatic-light-transfer.md) - [Tips For Success](topics/chamber-aquatic-tips.md) - [Manual Photosynthesis Irradiance Response](topics/chamber-aquatic-irradiance-manual.md) - [PI Response with a simple Program](topics/chamber-aquatic-irradiance-ap.md) - [PI Response with a Background Program](topics/chamber-aquatic-irradiance-bp.md) - [More Options](topics/chamber-aquatic-more-options.md) - [Using a pH Probe or Auxiliary Sensor](topics/chamber-aquatic-auxiliary-sensors.md) - [Controlling Temperature with a Water Bath](topics/chamber-aquatic-temperature-control.md) - [Measuring the Sub-sample Loop Flow Rate](topics/chamber-aquatic-subsample-flow-rate.md) - [Auxiliary Channels with Aquatic](topics/chamber-aquatic-auxiliary-channels.md) - [Troubleshooting](topics/chamber-aquatic-troubleshooting.md) - [Maintenance](topics/chamber-aquatic-maintenance.md) - [Removing the Aquatic Chamber](topics/chamber-aquatic-removing.md) - [References](topics/chamber-aquatic-references.md) - [11. Soil Chamber](topics/soil-chamber-intro.htm#top) - [What's What](topics/soil-chamber-summary.md) - [Installing the Soil Chamber](topics/soil-chamber-preparations.md) - [The Soil Chamber Controls](topics/soil-chamber-software.md) - [Preparing for Soil Measurements](topics/soil-chamber-collars.md) - [Measurement Tutorial](topics/soil-chamber-tutorial.md) - [Variables and constants](topics/soil-chamber-variables.md) - [Troubleshooting](topics/soil-chamber-troubleshooting.md) - [Maintenance](topics/soil-chamber-maintenance.md) - [12. Trace Gas Measurements](topics/tga-intro.md) - [Installing the Kit](topics/tga-installation.md) - [Elements of the Interface](topics/tga-interface-tour.md) - [Operational Guidelines](topics/tga-operational-guidelines.md) - [Warmup Procedure](topics/tga-warmup-procedure.md) - [Calibrating the TGA](topics/tga-calibration-procedure.md) - [Isotopic Calibrations](topics/tga-isotopic-calibrations.md) - [TGA and User Configuration](topics/tga-user-confgurations.md) - [Example: Light Response](topics/tga-example-light-response.md) - [Example: CO2 Response](topics/tga-example-co2-response.md) - [TGA Reference](topics/tga-reference.md) - [TGA Data and Groups](topics/tga-data-and-groups.md) - [TGA Isotopic Calibration Details](topics/tga-isotopic-calibration-details.md) - [User I/O Controls](topics/tga-user-io-controls.md) - [Backgroud Program Tools for TGAs](topics/tga-background-program-tools.md) - [Trace Gas Analysis References](topics/tga-references.md) - [13. Background Programs](topics/background-program-things-to-know.md) - [Overview of Background Programs](topics/background-program-overview.md) - [Creating Custom Dialogs](topics/background-program-dialogs.md) - [Some Example Programs](topics/background-program-examples.md) - [Response Curve Programs](topics/background-program-response-curves.md) - [Background Program Screen Reference](topics/background-program-screen-details.md) - [Background Program Step Reference](topics/background-program-step-reference.md) - [Control Dictionary Map](topics/background-program-control-dictionary-map.md) - [Status Dictionary Map](topics/background-program-status-dictionary-map.md) - [The list_utility Module](topics/background-program-list-utility.md) - [Controlling Custom Events](topics/custom-events-controlling-bp.md) - [14. Specifications](topics/specifications.md) ## Documents - [Documents](docs.md) - [Going on a field trip?](topics/ttp-going-on-a-field-trip.md) - [Emailing Data Files Automatically](topics/ttp-sending-emails-automatically.md) - [Making One-side Leaf Measurements](topics/one-sided-leaf-measurements.md) - [Building a Large Prompt List](topics/ttp-building-a-large-prompt-list.md) - [Gassing up your LI-6800](topics/ttp-gassing-up-your-6800.md) - [Leaf-level O2 and CO2 measurements](topics/leaf-level-O2-measurements.md) - [Setting the Thermocouple Height](topics/ttp046-thermocouple-height.md) - [Resolving a Leak Issue](topics/ttp055-leaks.md) - [Prepare the LI-6800 for shipping](topics/ttp045-shipping-recommendations.md) - [Replacing the Wheels](topics/ttp054-wheels.md) - [Considerations for Curve Fitting DAT Data](topics/dynamic-assimilation-and-curve-fitting.md) - [Controlling via VNC](topics/ttp061-vnc-remote-connection.md) - [Installing the LI-190R](topics/install-the-li190r-on-the-li6800.md) - [CO2 Cartridges](Photosynthesis/topics/ttp051-co2-cartridges.md) - [Custom Chamber Note](topics/chamber-custom-note.md) - [Small Plant Chamber Note](topics/chamber-plant-note.md) - [Using Light Sources and Leaf Chambers](topics/light-sources.md) - [Aquatic Sample Adapter](topics/chamber-aquatic-sample-adapter.md) - [Equilibrator Upgrade](topics/chamber-aquatic-equilibrator-upgrade.md) - [Volume, Flow, and Mixing Considerations](topics/volume-flow-and-mixing.md) - [FlashAnalysis Application](Photosynthesis/topics/flash-analysis-application.md) - [Setting H2O Spans with the DG-4](AppNotes/setting-h2o-span-with-DG4.md) - [Complimentary Photosynthesis Measurements with the LI-600 and LI-6800](Photosynthesis/topics/complementary-photosynthesis-measurements.md) - [Comparing Conductance Measurements from the LI-600 and LI-6800](Photosynthesis/topics/comparing-conductance-measurements.md) - [Software Change Log](topics/change-log.md) - [What's New in Version 2.2](topics/whats-new-in-2.2.md) ## Videos - [Videos](videos.md) - [Unpacking the LI-6800](videos/unpacking-the-li-6800.md) - [Filling the Columns](videos/chemical-columns.md) - [Installing the LI-190R](videos/installing-the-LI-190R-on-the-LI-6800.md) - [Software Overview](videos/software-intro.md) - [Warmup and System Tests](videos/system-tests.md) - [Power Options](videos/power-options.md) - [Controlling from a Computer](videos/controlling-from-a-computer.md) - [Connecting an Air Supply](videos/connecting-an-air-supply.md) - [Installing the 3x3 cm Chamber and Light Source](videos/install-small-leaf-chamber.md) - [Installing the Fluorometer](videos/install-fluorometer.md) - [Installing the Bryophyte Chamber](videos/install-bryophyte-chamber.md) - [Swapping Leaf Chamber Springs](videos/leaf-chamber-springs.md) - [Tracking Ambient Light](videos/configure-light-source-to-track-ambient.md) - [Setting Stability Criteria](videos/setting-stability-criteria.md) - [Prompts, Constants, and Computed Values](videos/prompts-constants-computed-values.md) - [Introduction to Range Matching](videos/introduction-to-range-matching.md) - [Introduction to Background Programs](videos/making-background-programs.md) - [Basic Survey Measurement](videos/survey-measurement.md) - [Measuring Electron Transport Rate](videos/etr-measurement.md) - [Measuring Non-photochemical Quenching](videos/npq-measurement.md) - [CO2 Response Curves with DAT](videos/dynamic-assimilation-technique.md) - [Viewing Data on the Console](videos/viewing-logged-data.md) - [Downloading Data](videos/downloading-data.md) - [Maintenance Overview](videos/maintenance-overview.md) - [Exending the Sodalime](videos/extend-soda-lime.md) - [Replacing Leaf Chamber Gaskets](videos/leaf-chamber-gaskets.md) - [Replacing Column Air Filters](videos/replacing-column-air-filters.md) - [Replacing Head Air Filters](videos/replacing-head-air-filters.md) - [Replacing the Leaf Temperature Thermocouple](videos/replacing-leaf-temperature-thermocouple.md) - [Replacing the Console Air Filter](videos/replacing-the-console-air-filter.md) - [Cleaning the Screen](videos/cleaning-the-screen.md) - [Cleaning the Gas Analyzer Optics](videos/cleaning-the-irga.md) - [Introduction to the Aquatic Chamber](videos/aquatic-chamber-overview.md) - [Using the Aquatic Chamber](videos/aquatic-chamber.md) - [Installing the Soil Chamber](videos/installing-the-soil-chamber.md) - [Overview of the Soil CO2 Flux Software](videos/soil-chamber-software.md) - [Innovations in Fluorescence](videos/fluorescence-intro.md) ## FAQs - [FAQs](faqs.md) ## Software - [Software](software.md) ## Factory Calibration - [Factory Calibration](factory-calibration.md)