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3.3 Catch the single signal
For catching a single signal, you need to understand the signal to a certain extent at
first, otherwise, observe the signal at first at an automatic trigger mode or at a normal
trigger mode so as to determine a suitable trigger electric level and a trigger edge.
The operation steps are as follows:
1. Set the attenuation coefficient as 10× in the probe option, and set the switch on the
probe as × 10.
2. Carry out trigger setup.
(1) Press [TRIG MENU] to display the“TRIGGER”menu.
(2) Respectively set the type as “EDGE TRIGGER”, set the signal source as [CH1], set
the slope as “RISE EDGE”; set the trigger mode as “ONCE”, and set the coupling as
“DIRECT CURRENT”.
(3) Regulate the horizontal time base and the vertical gear to a suitable range.
(4) Revolve [LEVEL] to regulate a suitable trigger electric level.
(5) Press [RUN/STOP] to wait appearance of a signal satisfying the trigger condition,
acquire the signal once and display the signal on the screen.
By this function, occasional events can be easily caught, such as sudden burrs with
large amplitude; the trigger electric level is set to be an electric level that is a little
larger than a normal signal; the key [RUN/STOP] is pressed to wait, and the machine
automatically carries out triggering and records the waveform within a period before
and after triggering when burrs appear. The [POSITION] panel is revolved to observe
the waveform before appearance of the burrs.
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