Fluke 123/124
Users Manual
26
Selecting AC-Coupling
Use AC-coupling when you wish to observe a small AC
signal that rides on a DC signal.
c
Open the SCOPE INPUTS menu.
d
Highlight AC.
e
(4x)
Accept AC-coupling for INPUT A.
Reversing the Polarity of the Displayed
Waveform
To invert the input A waveform, do the following:
c
Open the SCOPE INPUTS menu.
d
Select NORMAL (of INPUT A).
e
Highlight INVERT.
f
(3x)
Accept inverted waveform display.
For example, a negative-going waveform is displayed as
positive-going, providing a more meaningful viewing
perspective in some cases. An inverted display is
identified by trace identifier
on left of the waveform
area.
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