Caddock T3


Resistor photos and brief spec intro.

3458's , K2002-4 have TCV = <0.05 ppm/K

70K Tempco is -x.x ppm/K ; 120R Tempco is -x.x ppm/K

PID settings: KP=140, KI=0.1, KD=0.9, Max TEC voltage = 10.5V, Max TEC Current = 1.3A, YSI 44006 current = 100E-6 A

Reference levels:

Result CSV-data


* 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 :)