DSO-3004 USB
Series
Digital Oscilloscope
USER’S MANUAL 37
In the
“Format”
item, set the waveform display format (
Y-T
,
X-Y
).
Y -T
: Show the relative relation between vertical voltage and horizontal time
X -Y
: Show CH1 value at X axis; CH2 value at Y axis
Change Horizontal Position
Double click the channel button to set the trigger point to the horizontal center of the
screen.
Horizontal position changes the displayed waveform position, relative to the trigger point.
The user can drag
on screen to change the horizontal position.
3.4 Set Trigger System
Click
“Setup->Trigger”
, you can configure the trigger.
The user can also click
in the toolbar to set Trigger.
1. Set Trigger
Edge Trigger
T
he trigger determines when the oscilloscope starts to acquire data and display a wave-
form. When a trigger is set up properly, it can convert unstable displays or blank screens
into meaningful waveforms. If the oscilloscope wants to acquire a waveform, it collects
enough data so that it can draw the waveform to the left of the trigger point. The
oscilloscope continues to acquire data while waiting for the trigger condition to occur. The
oscilloscope continues to acquire enough data so that it can draw the waveform to the
right of the trigger point after it detects a trigger.
The
Edge
trigger determines whether the oscilloscope finds the trigger point on the rising
or the falling edge of a signal. Select
Edge
trigger mode to trigger on
Rising
edge or
Falling
edge.
