Dranetz 626 plug-ins
 

There are many different models of 626 power disturbance monitors, from the
vanilla 626, and from the 626A through 626G (as far as Mr. Google can tell
me).

I'm interested to discover what the "G" model consists of. The front panel
calls it "Graphics Universal Disturbance Analyzer". It looks like s plain 626
mainframe with a "AC Graphics Monitor Analyzer 626-PS-6030" plug-in.

I cannot find any detailed description of this plugin and what it does.
"Graphics"? Hmm...

Anyone have experience with this module?

Thanks.