How long had the meter been powered on for when you started the test? Think days rather than hours to stabilise.
D. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of m k Sent: 20 January 2013 09:06 To: [email protected] Subject: [volt-nuts] 7081 resistance accuracy issue Hi everyone, As part of my checking over of the behaviour of the 7081 I ran "mode,testk" and "nines=8" overnight, the result is a swing larger than I would expect! max 166.00455 min 166.00040 this means a 25 ppm shift The circuit is meant to generate a constant current, so if that constant current can vary by 25ppm over a 20-23 degree house temperature then it is only accurate to 25ppm for resistance measurement except when used as a transfer standard. anyone else find a similar shift? M K _______________________________________________ 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.
