Steve, I thought of that and tried a voltage that was within about 10 uV of 10 VDC as measured by my other, Ametek calibrated, 7081 and it still did not help.
Has me puzzled. Joe -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Steve Krull Sent: Sunday, September 02, 2012 7:15 PM To: Discussion of precise voltage measurement Subject: Re: [volt-nuts] Solartron 7081 Calibration Problem Joe, What was the exact value of the DC reference voltage you were applying? I wonder if the 7081 has a limit built in so that if you're not using a reference that is pretty close to 10 vdc it will generate the error you're seeing? Just something to try - adjust your 10 vdc reference source a couple of millivolts each way and see what you get. Steve On 9/2/2012 5:57 PM, J. L. Trantham wrote: > I went through the calibration process today, using the manual and my 'new' > Fluke 5100B. I made a 'short circuit plug' by connecting 'HI' to 'LO' only. > All was OK until the last step of 'CALIBRATE REFERENCE'. I kept getting > 'FACTOR OUT OF RANGE'. What am I missing? > > > > However, after checking it against my other, Ametek calibrated, 7081, the > readings on the various scales are very close, about 10 uV at 10 VDC, for > instance, and 2 mV at 10 VAC using a 1 kHz signal and about 36 ohms at 1 > MegOhm. This is a significant improvement from where it started. > > > > Thanks for any help. > > > > Joe > > _______________________________________________ > 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. > _______________________________________________ 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. _______________________________________________ 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.
