
Application Tutorials
Tutorial 7: Default and Custom Mask or Limit Line Testing
Display the Error Trace 
23 Display a mask and begin testing as described in this section, and then press: 
err trc ON|OFF ON 
Erase a Mask or Limit Line
24 Select the mask or limit line you wish to e rase by pressing: 
MENU, page 1 of 2, Analyze, masks, limits, define shapes, edit 
SELECT the number of the mask or limit line to be erased 
25 Erase the mask by pressing: 
delete shapes , DELETE CURRENT  
Remove all Displayed Masks 
26 Remove all displayed masks by pressing: 
Masks, mask setup 
27 To temporarily prevent the display of a mask without removing it, press: 
display ON|OFF OFF  
28 To remove the mask, press: 
CLEAR MASKS  
Refer to “Applying Mask Testing” on page 3-31 to learn more about saving, 
recalling, and erasing masks.