Source Mode Operation 
  Copyright ©ITECH Electronic Co., Ltd.  58 
 
 
DST wave: Select waveforms which built into the instrument by default. When 
the  waveform  name  is  selected,  the  parameters  and  waveform  diagram  are 
displayed on the right side of the interface. 
User THD wave: THD wave of user defined. 
“+”    Create a new THD wave. 
“-“    Delete the seleted THD wave. 
“ ”    Edit the THD wave. 
Press the “+” or “ ” enter to the edit interface. 
 
 
Thd profile: THD file name 
Thd formula: Distortion factor calculation formula. 
%r:  displaying  harmonics  in  the  form  of  percentage  to  the  overall  voltage 
amplitude of all harmonics.     
%f: displaying harmonics in the form of percentage to the fundamental voltage.