Trigger Source - Rigol DS4024E User Manual

RIGOL

Trigger Source

Signals input from the channels (CH1 to CH4), the external trigger input terminal
[EXT TRIG] connector and the AC Line can all be used as trigger source.
Press MENU (in the trigger control area (TRIGGER) at the front panel)  Source
and turn the multi-function knob
also press Source continuously to switch the current trigger source.
CH1 to CH4

Signals input from the channels (CH1 to CH4) can all be used as the trigger
source. No matter whether the channel selected is turned on, the channel can
work normally.
External trigger input

Signals (such as external clock and signal of the circuit to be tested) input from
the external trigger input terminal ([EXT TRIG] connector) at the front panel
can be used as the trigger source. When this type of trigger source (EXT or
[1]
) is selected, turning TRIGGER
EXT/5
-800 mV to +800 mV.
[1]
Note : EXT/5 refers to attenuating the signal input from the external input terminal ([EXT
TRIG] connector) by 5 times.
AC line

The trigger signal is obtained from the AC power input of the oscilloscope. This
trigger source can be used to display the relationship between the signal (such
as illuminating device) and power (power supply device). For example, to stably
trigger the waveform output from the transformer of a transformer substation;
this is mainly used in related measurement of the power industry.
Note: When different trigger type is selected, the signal sources (one or more of the
signals mentioned above) available are different.
5-2
to select the desired trigger source. You can
LEVEL can set a trigger level from
Chapter 5 Trigger
DS4000E User's Guide