Vision™ MX280001A Spectrum Monitoring Application Software : Vision Trace Monitor (Option 400) : Setting up a Mask : Mask Limit Line Editor
 
Mask Limit Line Editor
From the Status Panel, use the Mask Limit Line Editor to create a mask that will determine the pass/fail limits of the traces collected. Apply the mask to an individual channel or to the entire database. Refer to Trace Mask to access the Vision Limit Line Editor. A panel titled How to Edit Limit Lines contains instructions for developing a mask.
Click a limit line either on the table or the graph. You can drag a limit line with the mouse to reposition anywhere on the graph. To adjust the segment size hold down the Control key and use the mouse wheel.
• For precise placement, use the segment editor accessed from the toolbar.
• For crude adjustments, the keyboard arrow keys are very useful.
• For finer adjustment hold the Shift or Control keys while adjusting a segment.
A Limit Line Editor user interface is shown in Figure: Vision - Limit Line Editor (Segmented).
Vision - Limit Line Editor (Segmented)

1. Toolbar
2. Segment List
3. Trace Window
4. Line Segment
5. How to Edit Limit Line Dialog
6. Mask Name List (Segmented Mask Selected)
Types of Limit Lines
There are two types of limit lines:
• Segmented masks
• Trace masks.
The Segmented toolbar and Trace toolbar have different icons. This description describes using the limit line editor for segmented masks. The toolbar changes when editing trace masks. See Trace Mask to create trace mask limit lines.