Fluke 199C/S FE 192,196,199 C Users Manual - Page 26

Acquiring Waveforms, Selecting AC-Coupling, Reversing the Polarity of the Displayed, Waveform

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Fluke 192B - 196B/C - 199B/C Users Manual Acquiring Waveforms Selecting AC-Coupling After a reset, the test tool is dc-coupled so that ac and dc voltages appear on the screen. Use ac-coupling when you wish to observe a small ac signal that rides on a dc signal. To select ac-coupling, do the following: 1 Display the INPUT A key labels. 2 Highlight AC. Observe that the bottom left of the screen displays the ac-coupling icon: . Reversing the Polarity of the Displayed Waveform To invert the input A waveform, do the following: 1 Display the INPUT A key labels. 2 Open the Input A menu. 3 Select Inverted and accept inverted waveform display. 4 Exit the menu. For example, a negative-going waveform is displayed as positive-going waveform which may provide a more meaningful view. An inverted display is identified by an inversed trace identifier ( ) at the right of the waveform. 18

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Fluke 192B - 196B/C - 199B/C
Users Manual
18
Acquiring Waveforms
Selecting AC-Coupling
After a reset, the test tool is dc-coupled so that ac and dc
voltages appear on the screen.
Use ac-coupling when you wish to observe a small ac
signal that rides on a dc signal. To select ac-coupling, do
the following:
1
Display the
INPUT A
key labels.
2
Highlight
AC
.
Observe that the bottom left of the screen displays the
ac-coupling icon:
.
Reversing the Polarity of the Displayed
Waveform
To invert the input A waveform, do the following:
1
Display the
INPUT A
key labels.
2
Open the
Input A
menu.
3
Select
Inverted
and accept
inverted waveform display.
4
Exit the menu.
For example, a negative-going waveform is displayed as
positive-going waveform which may provide a more
meaningful view. An inverted display is identified by an
inversed trace identifier (
) at the right of the waveform.