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Scope Multimeter Operations Operations
11. Select OK to exit the dialog box.
12. Select Back twice to close the Scope Multimeter Preferences dialog box.
Sweep Controls
Sweep is the amount of time represented by the screen, or the horizontal scale of the display.
z To adjust Sweep controls:
1. Select Setup from the Scope Multimeter toolbar.
The Scope Multimeter Preferences dialog box opens
2. Tap Sweep to open the sweep dialog box (Figure 9-10)
Figure 9-10 Sample Sweep Setup dialog box
3. Choose an option from the list.
4. Select OK to close the dialog box.
5. Select Back twice to close the Scope Multimeter Preferences dialog box.
Trigger Controls
Triggering allows you to set the scope so that it begins sampling and displaying a trace once
predetermined signal conditions, or triggers, are met. Triggering produces a much more stable
waveform. The trace always begins at the trigger point, so the image does not appear to flicker or
drift as it updates. There are three modes of triggering:
• Auto—this automatic triggering mode is the default setting that either constructs the trace
independently of the trigger point or begins the trace as it crosses the trigger.
• Manual—often called normal mode, this option allows the user to set a triggering point and the
trace does not begin to display until the signal reaches the trigger point.
• None—often called Histogram, this is a “no triggering” mode that is automatically engaged
whenever a timebase, or sweep, between 2 seconds and 20 seconds is selected. Triggering
is prevented at slower sweep rates to eliminate screen update delays caused by the way
VERDICT buffers data in order to capture rapidly occurring signal glitches.
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