Other topics about Maintenance
User can update E4991B firmware by themselves. The latest firmware can be downloaded from the http://www.keysight.com/find/e4991b-firmware.
Updating firmware does not include the following software update.
Windows Operating System
Driver for Windows
Calibration Constant Data
Press System > Service Menu > Exit to terminate the E4991B application.
Download the latest firmware from the download site. (E4991B.exe). f you use your local PC to download, save the file to a USB mass storage device in order to move it to E4991B, then connect the USB mass storage device into the front USB port of the E4991B.
Double click E4991B.exe to install the firmware.
Follow the instruction of windows installer. After the installation is finished, the instrument restarts.
Press System > Firmware Revision to confirm the firmware revision you have just installed.
Download the latest firmware from the download site.
Download the execution file (E4991B_xx.xx.exe).
Run the E4991B_xx.xx.exe to extract the E4991B.msi.
If you use your local PC to download, save the file to a USB mass storage device in order to move it to E4991B. Connect the USB mass storage device into the front USB port of the E4991B.
Copy or move the E4991B.msi file to D drive.
Press System > Service Menu > Update Firmware.
In Open dialog box, select E4991B.msi, then press Open. Then the windows installer appears.
Follow the instruction of windows installer.
After the installation is finished, the firmware restarts.
Press System > Firmware Revision to confirm the firmware revision you have just installed.