Fluke 125 Fluke 125 Users Manual - Page 38

Selecting AC-Coupling, Reversing the Polarity of the Displayed Waveform, Open the A MEASUREMENTS - case

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Fluke 125 Users Manual 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: 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 Jump to the COUPLING: field f Highlight AC. g (2x) Accept AC-coupling. 2-16 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.

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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:
Open the A MEASUREMENTS
menu.
Open the INPUT menu:
Jump to the COUPLING: field
Highlight AC.
(
2x)
Accept AC-coupling.
Reversing the Polarity of the Displayed Waveform
To invert the input A waveform, do the following:
Open the A MEASUREMENTS
menu.
Open the INPUT menu.
2x
Jump to the WAVEFORM: field
Highlight INVERT.
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.