FOR PARTS HP Agilent Keysight 6813A AC Power Source Power Analyzer 16221

  For sale is a HP Agilent Keysight 6813A AC Power Source
  Power Analyzer 
  300Vrms, 750 VA
  On pic 3 you can see display which shows us some error. 
  Rest of this system looks good. We do not know how to test
  this system.

  THIS IS SOLD FOR PARTS BECAUSE WE DO NOT KNOW IF IT IS GOOD. 
  ALL I KNOW IS THAT IT POWERS UP.

(Click on the thumbnail images to enlarge)