Omega OME-ET-7000 Series User Manual page 133

Step 4
Choose "Erase Disk" from the "Command" menu.
After establishing a connection, then choose "Erase Disk" from
Command menu (or right-click on the right of window) to erase the
contents of the flash memory.
Tips & Warnings
You have to delete all files existed on the
OME-ET-7000/OME-PET-7000 before uploading the firmware.
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