Fluke 190 Series II - Suppressing High Frequency Noise; Acquiring Waveforms; Setting the Acquisition Speed and Waveform Memory Depth

Fluke 190 Series II
Users Manual
24
Suppressing High Frequency Noise
Switching the glitch detection off (Glitch: Off) will
suppress the high frequency noise on a waveform.
Averaging will suppress the noise even more.
1
SCOPE
Display the SCOPE key labels.
2
F4
Open the WAVEFORM OPTIONS
menu.
3
ENTER
Select Glitch: Off, then select
Average: On… to open the
AVERAGE menu
4
ENTER
Select Average 8 .
See also Using Average for Smoothing Waveforms
on page 21.
Glitch capture and average do not affect bandwidth.
Further noise suppression is possible with bandwidth
limiting filters. See
Working with Noisy Waveforms on
page 27.
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