Hi all,
I've just been handed over a bunch of instruments from someone in my neck of the woods that is downsizing/moving.
One of these is a Fluke 8840A, in very good shape. Upon starting it up yesterday to see what's going on with it, it displayed something line 0.00 and I noticed the "CAL" notation on top of the screen. Grabbed the manual, which states the calibration button should not be depressed until one intends to perform it, and never during a power cycle.
Oopsie, I thought, turned it off, switched off the calibration switch and turned it back on. Well, everything seems normal... Self tests are successful, it measures voltage from my bench source pretty accurately (I don't really have confirmed/calibrated instruments to check - just my "nothing wrong with them" bench DMMs - but I have no reason to think anything is wrong with the value displayed).
Shall I worry about its calibration memory being wiped? I am not sure what else could happen during the mishap at first turn on.
Thanks a bunch for input!