PC Application
User’s Manual 29
Trigger Source: You can use the trigger source options to select the signal that the oscilloscope
uses as a trigger. Select the trigger source signal (CH1, CH2 or EXT).
Trigger Slope: Set the slope to Rising (+) or Falling (-).
Rising: Trigger on rising edge
Falling: Trigger on falling edge
Also user can also set trigger parameters in the bottom right sidebar.
Change Trigger Level
Trigger Level icon: User can also drag the trigger icon on screen to adjust the trigger
level. Double click trigger icon to set trigger level to the vertical midpoint between the peaks of the
trigger signal.
2.9.2 Capturing a Single-Shot Signal
To capture a single event, it needs to gather some pre-test knowledge of the signal in order to set
up the trigger level and slope correctly. For example, if the event is derived from 3.3V COMS logic,
a trigger level of 1.2 or higher Volts should work on a rising edge.
Do these steps as follows:
1. Set the probe and the channel attenuations to “x10”.
2. Set up the trigger in the Trigger Menu, or in the Trigger Setting window.
(1) Adjust the Trigger Mode to Edge.
(2) Set the Trigger Sweep to Single.
(3) Set the Trigger Source to CH1.
(4) Set the Trigger Slope to “+” which means you select the rising edge.
(5) Adjust the Volt/Div and the time base in a proper range for the signal.
(6) Drag the trigger level sign on the waveform display screen to proper position. It ally higher a
little above the normal level.
(7) Click START button to start capturing. When the trigger conditions are met, data appears on
the display representing the data points that the oscilloscope obtained with one acquisition.
This function helps to capture the signal occurrence easily, such as the noise with large amplitude;
set the trigger level higher a little above the normal level and press and wait. When noise occurs,
the instrument will record the waveform before and after the trigger.
To Next Page
Loading...
Need help?
General
