This document describes relevant new features that were added to the LI-6400/XT OPEN software versions 3, 4, 5, and 6.
| Feature | What it brings | LI-6400 Model | LI-6400/XT1 Model | ||
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| OPEN 3 Software | OPEN 4 Software | OPEN 5 Software | OPEN 6 Software | ||
| CO2 Injector | Adds the capability to control CO2 concentrations in the leaf chamber, bringing more precise measurements. |
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| LED Light Source | This accessory makes it possible to measure photosynthetic response under controlled red and blue light levels. |
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| Soil Gas Flux Chamber | Expands the capabilities of the instrument to make measurements of CO2 flux from soil. |
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| AC Power Supply | Simplifies long-term laboratory and greenhouse measurements by eliminating the need for batteries. |
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| Insect Respiration Chamber | This enclosure holds a small insect to measure its respiration, bringing an entirely new function to the instrument. |
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| Extended Temperature Control Kit | Increases the range of chamber air temperatures attainable by the system. |
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| Custom Chamber Interface | Enables researchers to connect custom chambers, opening a vast new range of sampling possibilities. |
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| Clear Conifer Chamber | For measuring gas exchange from shoots and small branches of coniferous plants. |
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| Narrow Leaf Chamber | Ideal chamber shape for grasses and other monocots to optimize measurements. |
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| Trace Gas Sampling Kit | Brings the capability to collect gas samples directly from the leaf chamber, for measurements of other gas species with an external gas analyzer. |
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| Leaf Chamber Fluorometer | Enables measurement of chlorophyll fluorescence and gas exchange simultaneously over the same leaf area. |
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| Low O2 Measurements | Low O2 concentrations suppress photorespiration, providing a method for studying photosynthetic efficiency in C3 plants. |
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| User-Definable Stability Criteria | Brings the capability to to monitor variance and rate of change for almost any parameter measured by the instrument. |
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| Multiphase Flash™ Fluorescence | The protocol for measuring maximum fluorescence yield (Fm’) provides more accurate measurements than other methods. |
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| Network Connectivity | Brings the capability to share the instrument screen and control the LI-6400/XT with almost any computer on the Internet. |
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| Advanced Graphing | Improvements in graphing enable you to configure more graphs, zoom in and out, and store 10 minutes or more of graphing data. |
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| Ci Control | Makes it possible to maintain intercellular CO2 concentrations when changing other parameters. |
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| Two-Factor Response Curves | Creates automatically-run programs that measure the photosynthetic response to two changing variables. |
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| Low CO2 Control Modification | Brings new capabilities to study the differences between C3 and C4 plant biochemistry with support for measurements at low CO2 concentrations. |
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| Microsoft® Excel® Files with Equations | The ability to create files with equations saves time when you need to modify or recompute a dataset. |
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| iPhone® and iPad® Apps | Enables control of the LI-6400/XT from your mobile iOS device. |
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| RGB Light Source | Brings control over red, green, and blue light in the leaf chamber. Its compatibility with the Whole-Plant Arabidopsis Chamber, Opaque Conifer Chamber, and Bryophyte Chamber bring numerous novel capabilities. |
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| Bryophyte and Opaque Conifer Chambers | These chambers enable measurements of respiration from mosses, lichens, and small conifer branches under controlled lighting from the RGB Light Source. |
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| Whole-Plant Arabidopsis Chamber | Enables whole-plant photosynthesis measurements of Arabidopsis and other small plants. |
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Learning about photosynthesis?
- For FREE software updates visit www.licor.com/support and select the LI-6400XT.
- Contact us for information on upgrade packages, chambers, and light sources: envsales@licor.com.
