YOKOGAWA DL 1540, Руководство пользователя

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6-17 IM 701510-01E
Activating a
T
rigger
6
6.11 Changing the Trigger Position
1.
Press the
POSITION/DELAY key
to display the trigger position/
delay setting menu.
2.
Press the soft key to set the desired trigger position. Depending on the
model or the software (ROM) version, the trigger position can also be
set using the rotary knob.
• Menu (DL1520/DL1520L/DL1540 with software (ROM)
version 1.20 or later/DL1540L with software (ROM) version
1.20 or later)
• Menu (DL1540 with software (ROM) version before 1.20/
DL1540L with software (ROM) version before 1.20)
Explanation
Selecting the trigger position
• The trigger position can be selected from the following. As shown in the menu above,
the selection varies depending on the model or the software (ROM) version.
+4div
+4 divisions from the center of the waveform display frame
+2div
+2 divisions from the center of the waveform display frame
0div
the center of the waveform display frame
–2div
–2 divisions from the center of the waveform display frame
–4div
–4 divisions from the center of the waveform display frame
–4div 0div
+4div
–2div +2div
• Depending on the model or the software (ROM) version, the trigger position can be set with in
steps of 1/50 div using the rotary knob.
Setting the trigger delay and trigger position
The trigger position indicates which position of the waveform in the acquisition memory
will actually be displayed on the screen. The trigger point refers to the point at which a
trigger is activated. If no delay time has been set (i.e. delay time: 0 s), the trigger position
and the trigger point refer to the same location.
However, if a delay time is set using the trigger delay, the trigger position must be moved
using the above operations, since the delay point will not match the trigger point.
For more details on delays, refer to the next page.
Move the trigger position to the right
Delay time Delay time
Trigger point Trigger point
T (Trigger position) T (Trigger position)
Points to note when setting the trigger position
• If the trigger position is changed while acquisition is not in progress (i.e. while the
START indicator is not lit), the setting will not be valid until acquisition starts and the
waveforms are updated.
• The time measured by cursor measurement will change if the trigger position is changed,
because the trigger position is used as the reference position (except when the roll mode
is being displayed).
Keys and Procedure
POSITION/DELAY key
Soft keys