Hi,

Meter is Keithley 2015 THD running old firmware B12. I will upgrade to B17 soon and maybe run this test again.

I'm in the UK so 240VAC and 50Hz

I left your EZGPIB app running overnight and when I got up I noticed the meter was kept showing Error -213 "Init ignored" on some NPLC ranges but appeared to otherwise capture data ok.

Andy

(Macbeth on EEVblog)