Fluke 125 - Selecting AC-Coupling; Reversing the Polarity of the Displayed Waveform

Fluke 125
Users Manual
2-16
Selecting AC-Coupling
Use AC-coupling when you wish to observe a small AC
signal that rides on a DC signal.
To select AC-coupling on input A, do the following:
c Open the A MEASUREMENTS
menu.
d Open the INPUT menu:
e Jump to the COUPLING: field
f Highlight AC.
g
(2x)
Accept AC-coupling.
Reversing the Polarity of the Displayed Waveform
To invert the input A waveform, do the following:
c Open the A MEASUREMENTS
menu.
d Open the INPUT menu.
e
2x
Jump to the WAVEFORM: field
f Highlight INVERT.
g 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 A on left of the waveform area.