ADInstruments DS2002A Series User Manual page 34

N o o o o t t t t e e e e : : : : W W W W h h h h e e e e n n n n y y y y o o o o u u u u c c c c h h h h o o o o o o o o s s s s e e e e N N N N o o o o r r r r m m m m a a a a l l l l P P P P o o o o l l l l a a a a r r r r i i i i t t t t y y y y , , , , t t t t h h h h e e e e t t t t r r r r i i i i g g g g g g g g e e e e r r r r a a a a l l l l w w w w a a a a y y y y s s s s o o o o c c c c c c c c u u u u r r r r s s s s o o o o n n n n n n n n e e e e g g g g a a a a t t t t i i i i v v v v e e e e - - - - g g g g o o o o i i i i n n n n g g g g s s s s y y y y n n n n c c c c p u u u u l l l l s s s s e e e e s s s s . . . . I I I I f f f f t t t t h h h h e e e e v v v v i i i i d d d d e e e e o o o o s s s s i i i i g g g g n n n n a a a a l l l l c c c c o o o o n n n n t t t t a a a a i i i i n n n n s s s s p p p p o o o o s s s s i i i i t t t t i i i i v v v v e e e e - - -
- g g g g o o o o i i i i n n n n g g g g s s s s y y y y n n n n c c c c p p p p u u u u l l l l s s s s e e e e s s s s , , , , u u u u s s s s e e e e t t t t h h h h e e e e I I I I n n n n v v v v e e e e r r r r t t t t e e e e d d d d P P P P o o o o l l l l a a a a r r r r i i i i t t t t y y y y o p p p p t t t t i i i i o o o o n n n n . . . .
Pulse Width Trigger
You can use it to trigger on aberrant pulses.
Options Settings
Pulse
CH1
CH2
Source
EXT
EXT5
=
≠
When
<
>
Set Pulse
20ns to 10.0sec
Width
Positive
Polarity
Negative
Auto
Mode
Normal
AC
DC
Coupling
HF Reject
LF Reject
More
Trigger When: The pulse width of the source must be ≥5ns so that the oscilloscope can detect the
pulse.
＝, ≠: Within a ±5% tolerance, triggers the oscilloscope when the signal pulse width is equal to
DS2002A Series Digital Storage Oscilloscope User Manual
Comments
With Pulse highlighted, the trigger occurs on pulses that
meet the trigger condition (defined by the Source, When
and Set Pulse Width options).
Select the input source as the trigger signal.
Select the trigger condition.
With Set Pulse Width highlighted by pressing F4, turn the
multi-functional knob to set the pulse width.
Select to trigger on positive or negative pulses.
Select the type of trigger. The Normal mode is best for
most pulse width trigger applications.
Select the components of the trigger signal applied to the
trigger circuit.
Switch between submenu pages.
Triggers when pulse is
less than width setting
= Trigger Point
Triggers when pulse is
greater than width setting
Threshold level
Threshold level
Basic Operation
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