Upgrading The Firmware - Keithley 2461 Reference Manual

Model 2461 Interactive SourceMeter® Instrument Reference Manual

Upgrading the firmware

To upgrade the Model 2461 firmware, you load an upgrade file into the instrument. You can load the
file from the front-panel USB port using either a remote interface or the front panel of the instrument.
If you are using Test Script Builder (TSB), you can upgrade the firmware from TSB using a file saved
to the computer on which TSB is running.
During the upgrade to new process, the instrument verifies that the version you are loading is newer
than what is on the instrument. If the version is older or at the same revision level, no changes are
made.
If you want to return to a previous version or reload the present version of the firmware, select
Downgrade to Older. This forces the instrument to load the firmware regardless of the version.
The upgrade process normally takes about five minutes.
Upgrade files are available on the
Disconnect the input and output terminals before you upgrade or downgrade.
Do not remove power from the Model 2461 or remove the USB flash drive while an upgrade or
downgrade is in progress. Wait until the instrument completes the procedure and shows the opening
display. If you are upgrading a Model 2461-NFP instrument, the LAN and 1588 LEDs on the front
panel blink during the upgrade and stop when the upgrade is complete.
2461-901-01 A/November 2015
Keithley Instruments website
Appendix A: Maintenance
(http://www.keithley.com).
A-3