Firmware update process
The easiest way to update instrument firmware is online:
- Provide the instrument with an Internet connection using Wi-Fi or Ethernet
- Access update screen (System settings > Update)
- 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:
- Click on the desired version number below. This is a link to the .lsfw firmware update file
- 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
- 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
- Restart the instrument to be given the option to perform a firmware update.
- Disconnect the USB flash drive once the update is complete
F71/F41 firmware changelog
- Removed an unnecessary software module that caused errors to be displayed periodically
- 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 in addition to these regular firmware updates. Please contact Lake Shore Service if you are updating to this firware for assistance.
Remaining known bugs
- The screen sometimes displays a frozen grey screen after several days of being powered on. This issue is actively being investigated. Until a solution is found, this issue can be cleared by power cycling the instrument. Either by disconnecting the unit from power, or holding the power button down for 5 or more seconds to fully turn the instrument off.
- When using
FETCh:BUFFer:* the time interval between measurmemnts is sometimes different to the specificed averaging window. For example, an averaging window of 100 ms results in a consistent 100 ms spacing between reported measurements. Occasssionaly, a measurement spacing of 110 ms may appear.
- When collecting data using the
FETCh:BUFFer:* command, loss of resolution is possible when measuring very small DC fields in units of tesla. Workaround for now is to measure in gauss. Will be corrected in future version by changing to scientific notation.
- 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
- Buffered data streaming - for continuous acquisition of timestamped readings using SCPI commands
- New drivers: LabVIEW and IVI
- 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
- 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
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