CH9720 Programmable DC Electronic Load Instructions Chapter III Menu Operation
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N
ote: Files that match the upgrade file format can be displayed, but will only be
installed by the instrument after verification by the upgrade.
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Step 5:
Use the cursor keys to select the upgrade file suitable for this machine, and
press the “Upgrade” function soft key;
Step 6:
After confirming the upgrade operation, the instrument verifies the upgrade file.
If the verification is correct, the upgrade file is installed into the FLASH ROM
and automatically restarted after the installation is completed.
You can check the latest upgraded firmware version on the System Information page.
Note: You cannot power off during the upgrade process. Otherwise, the instrument
firmware may be damaged and cannot work. You need to return to the factory for
repair.