Example 3: Capture Of Single Signal - UNI-T UTD2025C Operating Manual

The third example: Capture of single signal
Advantages and characteristics of digital storage
oscillograph include convenient capture of
aperiodic signals such as pulse and burring, etc. It
has to know this signal to set trigger level and
trigger edge to capture a signal signal. For
instance: Trigger level shall be set to about 2V and
set trigger edge to ascending edge trigger if pulse is
a logic signal of TTL level. User can observe it by
automatic or ordinary trigger mode so as to
determine trigger level and trigger edge for
unknown signals.
Operation steps are as follows:
1. To set attenuation coefficient of probe and CH1
channel like the previous example;
2. To set triggers;
To press MENU button in trigger control area to
display trigger setup menu
To set trigger type to edge, trigger source to CH1,
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Operating Manual for UTD2000/3000
gradient to ascend, trigger mode of single mode and
trigger coupling to AC by using menu operation keys
of F1 to F5 respectively under this menu.
To adjust horizontal time base and vertical gear to
appropriate scope
To rotate TRIGGER LEVEL knob to adjust
appropriate trigger level
To press RUN/STOP execution button to wait for
signals which meet trigger conditions. Once
sampling can be done for display on the screen if a
certain signal reaches set trigger level. Occidental
events can be captured easily by utilizing the
function. For instance: Sudden burring with large
amplitude Please set trigger level to be higher
than normal signal slightly then press
RUN STOP button for waiting
trigger automatically and record waveform before
and after trigger during burring. Horizontal
POSITION knob in horizontal
The machine will