Power the 4200A-SCS with an uninterruptable power supply during the firmware upgrade
process. Interruption of the firmware upgrade process may damage an instrument card.
To upgrade the firmware:
1. From the Windows taskbar, select Start.
2. In the Keithley Instruments folder, select the Firmware Upgrade tool. If your instrument needs to
be upgraded, the Upgrade button is active and the Status column shows "Upgrade Required."
3. Select an instrument that needs to be updated and select Upgrade.
A progress bar is displayed during the upgrade. Note that each instrument card type is upgraded
separately.
Accessing the release notes
Refer to the Learning Center for the release notes.
Reset the hardware
If you suspect a problem with any 4200A-SCS hardware, do not use Windows Task Manager to close
any open applications. Both hardware and software issues may occur.
To reset the hardware:
1. Select Start.
2. Type resethw.
3. Select the instruments that need to be reset.
4. Click Reset.
Lithium battery
The 4200A-SCS contains a CR2032 cell (LiMnO
2
) battery. Perchlorate material may require special
handling. See Hazardous waste - perchlorate (dtsc.ca.gov/hazardouswaste/perchlorate).
This battery is not replaceable by the user.
Calibrate the system
To maintain SMU performance specifications, you must autocalibrate the 4200A-SCS every 24 hours
or any time after the ambient temperature has changed more than ±1 °C.
The autocalibration routine recalibrates the current and voltage offsets for all source and
measurement functions of all SMUs in the system.
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