LI-6400XT Software Downloads

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Thinking about upgrading your LI-6400 software?

Make sure you get the right version!

Read this first.

The LI-6400/LI-6400XT embedded instrument software is occasionally updated to add features and fix minor bugs. We encourage you to update your instrument software to the latest compatible version.

When upgrading your software, please make sure that you are downloading the correct version. Updating the software to a version that is incompatible with the hardware in your LI-6400/LI-6400XT can cause problems that may make your instrument unusable and require LI-COR technical support assistance to correct.

To determine the latest software version compatible with your hardware, you will need to turn your LI-6400/LI-6400XT on and view the main OPEN screen. The graphic below shows how to identify your version of OPEN software.

6400-screen

If your instrument has OPEN version 6.x software, you can upgrade to version 6.3.x software. We recommend backing up your data files before beginning the upgrade.

If your instrument has OPEN version 5.x software, you can also upgrade your software to version 6.3.x. If you choose to do this, however, you must save all of your data and calibration files before upgrading. The upgrade will erase all files from your instrument’s memory.

You can also upgrade your hardware to be compatible with version 6.3.x by installing the 6400-926 LI-6400XT Digital Board and Software Upgrade kit, which will provide you with a faster processor, more memory, Ethernet connectivity, compact flash card storage, and more. You can find more about the 6400-926 Upgrade kit here.

If you do not wish to upgrade to version 6.3.x, the latest version 5.x software is 5.3.2.

If your instrument has OPEN version 4.x software, you will not be able to upgrade to version 6.3.x without first purchasing the 6400-926 Upgrade kit. The latest version 4.x software available is 4.06.

If your instrument has OPEN version 3.x software, you will not be able to upgrade to version 6.3.x without first purchasing the 6400-926 Upgrade kit. The latest version 3.x software available is 3.4.3.

 Click below to get LI-6400XT instrument (embedded) software and file exchange/simulator software.

Download LI‑6400XT Software

NEW! Version 6.3 Software contains exciting features for the LI-6400XT System.

Recent Software Features and Updates

  • Improvements in CO2 and Temperature Control Resolution
  • Matching as a log option and includes an averaging time
  • New Diagnostic Displays
  • Two-factor Response Curves
  • Allows for varying control of light and CO2 at the same time
  • Ci Control Keep Ci constant while performing light response curves
  • Simultaneous viewing of graphs on remote terminal
  • Mixer allows for control of low CO2 concentrations

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