Crosstest 4 DCI

3458B + 3458X with 3245 100uA

3458X : 100uA TCI, -0.45 ppm/K
3458B : 100uA TCI, -1.42 ppm/K

Result CSV-data from HP 3458A


* 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
* Page runs D3.js javascript library to read DSV file test.log to input data
* D3.js plots SVG graph online :)