RIGOL  Chapter 6 MATH and Measurements 
6-32    DS2000E User’s Guide 
Note: When the current measurement source is MATH, only the 
parameters in the Zoom region can be measured. 
  When Zoom is disabled, "Main" is automatically selected in Screen and 
cannot be modified. 
 
4.  Select X (Y) Axis Unit 
When the measurement source is "CH1", "CH2" or "MATH"   
When the display mode is "X" or "X-Y", press Time Unit to select "s", "Hz", "°" 
or "%". 
  s: in the measurement results, A->X, B->X and △X denote time and 1/△X 
denotes frequency. 
  Hz: in the measurement results, A->X, B->X and △X denote frequency and 
1/△X denotes time. 
  °: in the measurement results, A->X, B->X and △X are expressed in degree. 
At this point, A->X, B->X and △X will change to "0°", "360°" and "360°" 
respectively when you press SetCursor, no matter where cursor A and 
cursor B are currently located. At the same time, two cursor lines 
(unmovable) appear on the screen as the reference positions. 
  %: in the measurement results, A->X, B->X and △X are expressed in 
percentage. 
At this point, A->X, B->X and △X will change to "0%", "100%" and "100%" 
respectively when you press SetCursor, no matter where cursor A and B 
are currently located. At the same time, two cursor lines (unmovable) 
appear on the screen as the reference positions. 
Note: When the display mode is set to "Y", the Time Unit menu will be hidden 
automatically and cannot be set. 
 
When the display mode is "Y" or "X-Y", press Vertical Unit to select "Source 
Unit" or "%". 
  Source Unit: when this unit is selected, in the measurement results, the 
units of A->Y, B->Y and △Y will be automatically set to the unit of the 
current source.  
  %: when this unit is selected, in the measurement results, A->Y, B->Y and 
△X are expressed in percentage. At this point, A->Y, B->Y and △X will 
change to "0%", "100%" and "100%" respectively when you press 
SetCursor, no matter where cursor A and B are currently located. At the 
same time, two cursor lines (unmovable) appear on the screen as the