K7168 setup, 8xLTZ1000 FX test run, 3458B

Keithley 7168 8-channel nanovolt scanner + RPI in K7001 chassis scanning voltage across each reference in chain.
HP 3458A measure voltage. Direct sample used as resulting sample.


Reference levels:
CH1 Median: 7.16166431 VDC, FX-10 LTZ
CH2 Median: 10.00039816 VDC, FX-10 output
CH3 Median: 7.15864547 VDC
CH4 Median: 7.12097192 VDC
CH5 Median: 7.15756108 VDC
CH6 Median: 7.12850898 VDC
CH7 Median: 7.10986240 VDC
CH8 Median: 7.13777734 VDC
K4 Median: 7.13666155 VDC, old KX A00 LTZ1000CH
K6 Median: 9.9999853 VDC from FX792X reference
HP3458C drifty A3 Median: 7.13671028 VDC, old KX A00, LTZ1000ACH

Result CSV-data

Workflow:

* RPI accesses DMMs via GPIB and reads data.
* Data is formatted by python script into DSV string and written/append to file on FTP
* DSV-file is visible publicly on https://xdevs.com/datashort/
* Page http://xdevs.com/datalog_mm/ runs D3.js javascript library to read DSV file test.log to input data
* D3.js plots SVG graph online :)