1. Setting up channel coupling :
F1
F2
Take an example of applying a signal to CH1. The
signal being tested is a sine signal that contains
DC%. Press [
] to select AC then press [
] to select
AC 1M
It is now set up as AC coupling
DC
quantities
of
the
signal
being
tested
will
be
intercepted
The waveform display is as follows
.
.
.
:
Ω
Ω
Press [
] twice to select DC 1M
Both DC and AC
quantities of the testing signal being inputted to
CH1 can pass through
The waveform display is
as follows
F1
.
.
:
19
UTD4000 Four-channel User Manual
Figure 2-1 DC quantities of the signal are intercepted
AC coupling
setup
DC coupling
setup
Figure 2-2 Both DC and AC quantities of the signal are
displayed
