You can get two digits from the last dial scale. I didn't say I believed them :-) In fact, given the age and history of this thing, I'm surprised that even the first digit is believeable.
Joe Gray W5JG On Wed, Aug 14, 2013 at 12:43 AM, Charles Steinmetz <[email protected]>wrote: > Joe wrote: > > Just messing around, I measured a used 9 V battery. On the 100 uV scale >> and with some interprolating of the last dial, I read 9.189795 V at null >> (with a tiny bit of wobble on the needle). >> > > Reading an 895A to 7 significant figures is a case of "false precision," > which can lead to overconfidence in the accuracy of measurement results. > Fluke specifies the accuracy of the 895A in differential mode as +/- > (0.0025% of input + 0.0001% of range + 5 uV) at calibration temperature > (around +/- 250 uV uncertainty for the measurement you describe), with > calibration recommended every 30 days to maintain that accuracy. > > Best regards, > > Charles > > > > ______________________________**_________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/volt-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts> > and follow the instructions there. > > _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
