EEVblog #834 - Wekomm Resistance Standard

An impromptu play with Dave's Wekomm 10K Transfer Resistance Standard.
What is the strange discrepancy in drift on the graph on the Keithley DMM7510 multimeter?
http://www.wekomm.de/metrologie_e.php
This is Part 1, don't forget Part 2 is here: https://www.youtube.com/watch?v=gEDs0OtOkGE
Forum: http://www.eevblog.com/forum/blog/eevblog-834-wekomm-resistance-standard/

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