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Agilent 54622D / Replacing backup battery

Question asked by Paolo on Aug 19, 2007
Latest reply on Sep 30, 2009 by Paolo

I am about to replace the 3V lithium battery of my Mixed Signal Oscilloscope Agilent 54622D.
The oscilloscope is 7 years old and the voltage of the original battery is now down to 2.97V.
Until now I have not seen any error message about this backup battery but I want to be
ready to replace it.

The lithium battery CR2354 is soldered on the system board.
Anything I should know before I replace the battery?

After replacing the battery, setting the time (RTC) and
then performing a self-calibration "User Cal" will be enough?

Any information is greatly appreciated. Thank you in advance.

Best regards,


Model number: 54622D
Software revision: A.02.31
ROM revision: A.01.10

54620-Series Oscilloscopes Service Guide