Whether you decide to replace the battery now or not, take a few
minutes to back up your calibration data first. Two easy methods:
1) Use the built-in diagnostic routine EXER 02 and record a video
while scrolling through all 256 calibration values. How to use
EXER 02 is in the service manual.
2) Or, if you have the GPIB option, via the GPIB interface enter
the command "key 0" followed by the command "earom? f" . This will
produce a list of 256 numbers which is the calibration data. Save
this output in a file for future reference.
-mark
