Fluke Biomedical 190M - Manual (Page 35)

Using the Scope and Meter
Acquiring Waveforms
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25
Acquiring Waveforms
Setting the Acquisition Speed and Waveform
Memory Depth
To set the acquisition speed, do the following:
1 SCOPE Display the SCOPE key labels.
2 F4 Open the WAVEFORM OPTIONS
menu.
3
ENTER
Select Acquisition:
Fast – for fast trace update rate;
shortest record length, decreased
zoom rate, no readings possible.
Full – maximum waveform detail;
10,000 samples per trace record
length, maximum zoom rate,
lower trace update rate.
Normal – optimal trace update
rate and zoom range combination
4 F4 Exit the menu
See also Table 2 in Chapter 8.
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 A Display the INPUT A key labels.
2 F2 Highlight AC .
Observe that the bottom left of the screen displays the
ac-coupling icon:
.
You can define how Auto Set affects this setting, see
Chapter 6 “Changing the Auto Set Options.”