Slope Trigger - Teledyne LeCroy T3DSO2000A Series User Manual

15.5.3 Slope Trigger

The slope trigger looks for a rising or falling transition from one level to another level
in the specified time range. For example, positive slope time is defined as the time
difference between the two crossing points of trigger level lines A and B with the
positive edge as shown in the figure below.
Touch the Source area to select trigger source, and touch the Slope area to select
rising or falling.
Rising -- Only trigger on the positive slope
Falling -- Only trigger on the negative slope
Adjust Upper/Lower Level
The slope trigger requires upper and lower trigger levels. When
the trigger type is slope trigger, touch the trigger descriptor box,
the pop-up quick menu will show two levels.
The upper/lower level can be set in the following two ways:
1. Touch the Level Upper area in the quick menu to select the
upper level, and then set the level value by the virtual
keypad or the Level knob on the front panel. To set the
lower level is similar.
2. Use the Level knob on the front panel directly to set the level
value. Press the knob to switch between upper and lower
level, and rotate it to set the value.
The lower level should always be less than or equal to the upper level. In the trigger
descriptor box, the lower level is displayed.
Set Limit Range
Touch the Limit Range area in the trigger dialog box to select the time condition and
set the corresponding time in the Upper Value/Lower Value area.
Less than a time value（≤）-- Trigger when the positive or negative slope time of the
input signal is lower than the specified time value.
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T3DSO2000A Manual. Page 56