Teledyne LeCroy HDO 4000 Getting Started Guide - Manual (Page 34)

923010-00 Rev A
BASICS 30
D E
F
A B
C
Triggers
Triggers tell the oscilloscope when to perform an acquisition.
Available trigger types are described at more length in the
HDO4000 Oscilloscopes Operator’s Manual.
From the Front Panel
Opens the Trigger dialog.
Stops the oscilloscope from acquiring data.
Triggers once (single-shot acquisition) when all conditions are met.
Triggers repeatedly whenever all conditions are met.
Same as Normal when there is a valid trigger; triggers after a preset
period when there is no valid trigger.
Turn to raise or lower Trigger Level (V). Push to automatically find
the level.
Lights up when a trigger is armed.
Lights up when a trigger has fired.
From the Display
Touch to open Trigger dialog.
Touch to choose trigger Type.
Touch to set Trigger Level (V).
Touch to let the software automatically set trigger level
based on the input signal.
Pre/Post-Trigger Indicator appears
at the edge of the grid when trigger
point is no-longer visible. Level
Indicator Position
Indicator
A
B
C
D
E
F
H
A
B C D E
F
G
A
B
C
H G
Trigger Source
Trigger Coupling
Trigger Level
Trigger Slope
Trigger Type
Trigger Status
D
E
F
Trigger Indicators
H
G
I
H G I