Change log

The LI-8250 updater will install updated firmware for all components in a system.

Version 2.1.4 (current version; released December 12, 2023)

• Migration to Buildroot.

Version 2.1.2 (released April 27, 2023)

• Support for version 3 printed circuit boards. Adds support for power sequencing the an internal temperature sensor. No changes to the interface or operation.

Version 2.1.1 (released January 13, 2023)

• Support for an updated System-on-Module (SOM), the components of the embedded processing system. No changes to the interface or operation.

Version 2.1.0 (released February 14, 2022)

• Interface v1.5.2
• Multiplexer firmware v2.1.0
• Extension manifold firmware v1.0.11
• Chamber firmware v1.1.7

New Features

• Added support for the flask sampling kit.

Bugs Fixed

• Set limit for pre-purge to 5 seconds and post-purge for 0 seconds.
• Resolved issued with manifold valve state when loading configuration page in the interface.
• Improved reporting of chamber status.
• Added 15 second delay after a measurement is aborted due to a flow restriction.
• Improved system performance following multiplexer reboot scenarios.
• Truncated significant digits after a decimal to 2 characters in the interface.
• Improved communication between the LI-870 and multiplexer (changes to the LI-870 firmware).
• Improved detection and display of trace gas analyzer nodes.
• Improved performance of connection when a computer is reconnected to the device network after being connected to a different network.
• Improved alignment of Stevens Probe SDI-12 measurements with other chamber measurements to avoid missing soil water content and temperature data.
• Additional refinements.

Version 2.0.0 (released December 3, 2021)

• Added support for extension manifolds.

Version 1.2.5 (released March 17, 2021)

Embedded firmware

• Now continues to track chamber status beyond end of measurement

Interface changes

• Shows correct number of files found
• Fix chambers expanded state in diagnostics page
• Fix some color inconsistencies
• Refactor tool-tips
• Add files error dialog to deletion and copy on USB operations

Chamber changes

• More gracefully handle a close limit or open limit sensor failure
• Cache measurement set configuration info while SDI-12 device is performing measurement
• Report -9999 for SDI-12 fields that are not reported by device due to a misconfiguration
• Does a full SDI-12 measurement reinitialization on start command even if already in measurement mode