Measured noise on L4411A,34411A and 34410A. The noisiest are ranges 1V and 100V, about 3 times less noise is on 10V range and 1000V range.
Noise calculation has been calculated as st. Dev on NPLC 1,2,10 and 100.
Noise on 100mV was quite high 4 ppm/Range, compared to 0.1 at 10V range.
Source data are in attachment, including .xlsx spreadsheet and Labview program (works only with 34411,34410 and L4411.
Instruments like 34465,34461 and 34401 will follow (measurement data and program support as well).
Program was too big to upload, so I used TiN FTP /Plesa/Agilent