User manual

WaveSurfer 3000 Oscilloscopes
SlewRate triggers when the rising or falling edge of a pulse crosses an upper and a lower level. The pulse
edge must cross the thresholds faster or slower than a selected period of time.
Serial Triggers
The Serial trigger type will appear if you have installed protocol-specific serial data trigger and decode
options. Select this type to open the serial trigger setup dialogs. Instructions for using all serial data options
are available from our website at teledynelecroy.com/serialdata.
Setting UpTriggers
To access the Trigger setup dialogs, do one of the following:
l Choose Trigger > Trigger Setup from the menu bar
l Press the front panel Trigger Setup button
l Touch the Trigger descriptor box
The main Trigger dialog contains the trigger type selections. On oscilloscopes with the Mixed Signal option,
many trigger types can be set on either analog channels, including the External Trigger input, or digital lines.
Other controls will appear depending on the trigger type selection (e.g., Slope for Edge triggers). These are
described in the set up procedures for each trigger.
The trigger condition is summarized in a preview window at the far right of the Trigger dialog. Refer to this to
confirm your selections are producing the trigger you want.
Edge Trigger
Edge triggers upon a achieving a certain voltage level in the positive or negative slope of the waveform. It is
the default trigger selection on standard oscilloscopes.
On the Trigger dialog, select Edge trigger type to display the controls.
ANALOG EDGE
1. Choose the Source signal input.
2. Enter the voltage Level upon which to trigger.
The Find Level button sets the Level to the signal mean.
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