Downloads



Teslameter softwareLatest versionRelease dateSizeDownload
Firmware1.7.20190930062019-09-3037 MBF41_F71.lsfw
Operating system2.5.42019-06-04258 MBos_lsci_2_5_4.zip


Firmware update process

NOTE: This process is not capable of handling a full OS update, which is required for some versions of firmware. See instructions for the update process.

The easiest way to update instrument firmware is online:

  1. Provide the instrument with an Internet connection using Wi-Fi or Ethernet
  2. Access update screen (System settings > Update)
  3. The instrument will detect the latest firmware version, follow on-screen prompts to download and install the update

Updating an offline instrument is accomplished with the following steps:

  1. Click on the desired version number below. This is a link to the .lsfw firmware update file
  2. Copy or save the .lsfw file onto the root directory of a USB flash drive. Make sure it is the only .lsfw file in that location
  3. Plug the flash drive into the USB-C port on the back of the instrument, if you don't have a newer flash drive with a USB-C connection, use the adapter that was supplied with the instrument
  4. Restart the instrument to be given the option to perform a firmware update.
  5. Disconnect the USB flash drive once the update is complete

F71/F41 firmware changelog

Rev 1.7.2019093006 – 2019-09-30

Added

  • NEW FEATURE: High-speed pulse detection improved through the addition of maximum peak value holding

Fixed

  • 3-axis probes recognized correctly when hot-plugged into the instrument

Known bugs

  • After updating firmware, some settings may become corrupted, resulting in unusual error messages. Please reset instrument to factory defaults after applying this update.

Rev 1.6.2019092002 – 2019-09-20

Added

  • NEW FEATURE: Configurable high pass, low pass, and band pass filters
  • NEW FEATURE: Qualifier for comparing field measurement to user defined thresholds
  • Configurable corrected analog output voltage scaling

Changed

  • UI improvements to the sensor information page and keypads

Fixed

  • Critical: Performance degradation over time when using probes with temperature sensors. This causes the interface to lag and eventually crash. Please update immediately if using version 1.5.
  • Resolved several scenarios where uncommon user interface actions could result in system crashes

Known bugs

  • 3-axis probes were sometimes not recognized when plugged into the instrument. Could be resolved by sleep or power cycling the instrument
  • After updating firmware, some settings may become corrupted, resulting in unusual error messages. Please reset instrument to factory defaults after applying this update.

Rev 1.5.2019080703 - 2019-08-07 (Unstable version)

Added

  • Feedback page in the main menu
  • Support for future 3-axis orthogonality correction
  • Cryogenic mode recommendation message when the instrument temperature is set to a cryogenic range
  • Added kelvin (K) to available displayed temperature units

Changed

  • Improved remote query responses when the instrument is changing range or in an overload state
  • Buffered field values switched to scientific notation for consistent resolution of reported values
  • Rearranged configuration menu items to be a little more logical

Fixed

  • Several old bugs that were inadvertently reintroduced in the previous version

Known bugs

  • Critical: After several days of operation, some units would become sluggish and unresponsive due to a memory leak issue. Could only be resolved by power cycling the instrument.
  • 3-axis probes were sometimes not recognized when plugged into the instrument. Could be resolved by sleep or power cycling the instrument
  • Certain uncommon user interface actions could result in system crashes
  • After updating firmware, some settings may become corrupted, resulting in unusual error messages. Please reset instrument to factory defaults after applying this update.

Rev 1.4.2019061411 - 2019-06-14 (version not recommended)

Added

  • NEW FEATURE: Corrected analog voltage out for X, Y, Z, or magnitude field readings
  • Bias current cancellation - Found a way to further improve TruZero™. Residual offsets are now more consistent when switching probes between different teslameters, reducing offsets overall in some cases.
  • New FETCh:BUFFer:CLEar command that clears the buffer instead of having to read out all 128 buffered values. Useful for reducing the time it takes for the first buffer request to complete (fewer buffered values = faster response time).
  • Port number can now be set when using TCP/IP to communicate with the instrument
  • Serial port configuration details are now displayed on the Connectivity settings page as reference information

Fixed

  • Various quality of life improvements to Python drivers
  • The input state bitwise values were swapped when requesting buffered data. These values now report correctly.
  • Digital input states can no longer be toggled by tapping on them
  • Unit sometimes crashed when tapping on Firmware version in the About section of System settings
  • Fixed Ethernet lockup issue with a full OS update to version 2.5.4 (270 MB). See instructions for the update process.

Known bugs

  • Several old bugs that had been fixed were reintroduced in this version. This firmware version should be avoided if possible
  • Certain uncommon user interface actions could result in system crashes
  • After updating firmware, some settings may become corrupted, resulting in unusual error messages. Please reset instrument to factory defaults after applying this update.

Rev 1.2.2019030102 - 2019-03-01

Fixed

  • Fixed a field control issue where a small slew rate setting caused field control instability

Known bugs

  • Fetching field values while the instrument is ranging or overloaded will cause the instrument to ignore that request

Rev 1.2.2019020602 - 2019-02-06

Fixed

  • Fixed an issue with IP address assignment after an OS update

Known bugs

  • Fetching field values while the instrument is ranging or overloaded will cause the instrument to ignore that request
  • The input state bitwise values are swapped when requested buffered data

Rev 1.2.2019011608 - 2019-01-16

Added

  • NEW FEATURE: Native Python drivers
  • NEW FEATURE: Cryogenic excitation added as an optional drive setting, allowing the user to reduce sensor power and minimize self-heating at the cost of resolution

Changed

  • Improved buffered data formatting (see instrument manual for details)

Fixed

  • General stability and operational improvements for SCPI commands (SCPI crashing when sent semi-colons and SCPI responding while the instrument is asleep)
  • Fixed an issue where the screen would grey out after the instrument had been on for 1 to 2 weeks PLEASE NOTE: This change requires a full OS update to version 2.5.2. See instructions for update process.

Known bugs

  • OS update results in an issue with IP address assignment
  • Fetching field values while the instrument is ranging or overloaded will cause the instrument to ignore that request
  • The input state bitwise values are swapped when requested buffered data

Rev 1.1.2018101004 - 2018-10-10

Fixed

  • Removed an unnecessary software module that caused errors to be displayed periodically

Changed

  • Made a change to USB connection parameters, adding RTS/CTS flow control to make buffered data streaming more robust. PLEASE NOTE: This change requires an OS update to version 2.5.1 in addition to these regular firmware updates. Please contact Lake Shore Service if you are updating to this firmware for assistance.

Known bugs

  • Fetching field values while the instrument is ranging or overloaded will cause the instrument to ignore that request
  • The input state bitwise values are swapped when requested buffered data
  • The screen sometimes displays a frozen grey screen after several days of being powered on.
  • When using FETCh:BUFFer:* the time interval between measurements is sometimes different to the specified averaging window.

Rev 1.1.2018091003 - 2018-09-10

Added

  • NEW FEATURE: Closed-loop field control commands, settings and UI. Ready for upcoming field control option card hardware
  • Probe high frequency compensation - providing more accurate measurement of high-frequency fields
  • NEW FEATURE: Buffered data streaming - for continuous acquisition of timestamped readings using SCPI commands
  • New drivers: LabVIEW and IVI

Changed

  • Layout of the main menu drawer improved
  • Moved temperature reporting from top taskbar to a new card on the home screen to avoid unresponsiveness of other taskbar elements
  • Other general UI improvements
  • Improved accuracy of frequency detection in AC and HF mode

Fixed

  • In AC Mode, RMS readings sometimes spiked when DC offsets were high
  • Improved error notifications
  • General program stability improvements reducing the chance of the instrument having to recover itself
  • Changing the Digital I/O functions using SCPI commands were not replicated on the UI
  • SOURCE:AOUT? query timed out

Known bugs

  • Fetching field values while the instrument is ranging or overloaded will cause the instrument to ignore that request
  • The input state bitwise values are swapped when requested buffered data
  • Headers returned by FETCh:BUFFer:FORMat? are not formatted consistently
  • The first buffered value read back (FETCh:BUFFer:*) can sometimes be less than the specified averaging window.

Rev 1.0.2018060702 - 2018-06-07

Initial release