8-Advanced Function of Oscilloscope
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Table: Probe attenuation level and the corresponding menu setting
Probe attenuation level
Corresponding Menu Setting
1:1
1 X
10:1
10 X
100:1
100 X
1000:1
1000 X
8.2.4 Setting of Inverted Waveform
Inverted waveform: The displayed signal reverses 180 degrees relatively to the ground potential.
Press
F4
to set
Inverted
as
ON
to
start Invert; as
OFF
to close Invert.
8.3 Setting the Trigger System
The Trigger defines the time when the acquisition of data and display of waveform. If it is set
correctly, the trigger can turn an unstable display into a significant waveform.
When starting the acquisition of data, the oscilloscope collects sufficient data to draw the
waveform at the left side of the triggering point. With waiting for the triggering condition, the
oscilloscope is gathering data continuously. After a trigger is detected, the oscilloscope gathers
enough data continuously to draw the waveform at the right side of the triggering point.
To make a trigger mode setting, do the following:
1.
Press the
MENU
key and the function menu appears at the right of the screen.
2.
Press the
MENU
▲
or
MENU
▼
key to select
TRIG MODE
and five options are displayed
at the bottom of the screen.
3.
Select from
F1 to F5
key to make a different setting.
4.
Press
OPTION
and left bottom display as below during edge trigger and video trigger:
—
Time
—
Time Base
—
Trig
—
Trig
5.
Press
▲ (
OPTION) or
▼ (
OPTION) to adjust trigger vertical position, Press
◄
(OPTION)
or
►
(OPTION) to adjust time base horizontal position or adjust horizontal position.
8.4 Triggering Control
There are three trigger modes including Edge trigger and Video trigger . Each trigger mode is set
by different function menu.
Edge trigger:
The edge trigger type triggers on the incoming signal edge. Use the edge trigger for
all signals except for video related ones.