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Not all USB memory drives are created equal when recording data on a 2638A


Running a configuration file with “internal” memory selected

AND Resume scan selected

AND if the power is interrupted for any reason



If you are using certain types/brands of USB memory devices, when the

Fluke 2638A resumes power, after boot up it may give the following message:

“Error resuming data record” ERROR 655



This is a result of the USB memory drive being slow to be detected with the 2638A operating system.

The only solution at this time is to use not that type/brand of USB memory device when attempting to resume scan after power failure when recording to a usb memory device.




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