Frans, Do you perform an in-house calibration with a 10V reference and 1 ohm & 10k resistors? I have been studying the recommended calibration intervals of Fluke's 57xx series calibrators and I wonder how well the unit maintains its stability over long intervals between trips to a cal lab.
Also, if you don't mind, would you give a ballpark figure for the cost of cal from your cal lab? Todd Sent from my iPad > On May 15, 2015, at 14:50, Electronics and Books via volt-nuts > <volt-nuts@febo.com> wrote: > > My Fluke 5700A calibrator was calibrated today after 9 years. It displays how > much it deviated from the last calibration. For the both voltage references i > got 0.0 ppm and for the internal 10k resistor -1.7 ppm. > Only the amplifier for the 11-22 volt range drifted 1700 ppm for it depends > on a voltage divider composed of two normal metalfilm resistors. These will > be replaced by 2 vishay 0.01% resistors which are hopefully more stable. > > Regards > > Frans > > > > Discere ne cesses > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.