180 Keysight InfiniiVision 1200 X-Series and EDUX1052A/G Oscilloscopes User's Guide
16 Mask Testing
 
5 Press Automask.
6 In the Automask menu, press the Source softkey and ensure 
the desired analog channel is selected.
7 Adjust the mask's horizontal tolerance (± Y) and vertical 
tolerance (± X). These are adjustable in graticule divisions or 
in absolute units (volts or seconds), selectable using the Units 
softkey.
8 Press the Create Mask softkey.
The mask is created and testing begins.
Whenever the Create Mask softkey is pressed the old mask is 
erased and a new mask is created.