Comparison of Fluke 5790A vs Wavetek 4920M vs HP 3458A on ACV function

Sine 1.0 VRMS 1000Hz from modified HP 3245A feed into all meters
3458A: ACV 1.0, NPLC 100, SETACV SYNC, LFILTER ON, NDIG 8
5790A: ACV 2.2, DFILT ON, FINE, SLOW, EXTGRD ON, HIRES ON
4920M: ACV 1.0, RESL7, FILT100Hz, AVG8


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 :)