Fluke 91 Series II User Manual page 148

ScopeMeter Test Tool Tutorial
Figure 8-13 Trigger on DC Coupling
Tips for low frequency measurements:
(I) Always choose DC coupling for low frequency
measurements.
(II) Make sure FREE RUN is off, or the display will
possibly be unstable.
(III) If you are in doubt about the nature of a
waveform, use the following "quick indication"
method.
Connect INPUT A only.
1. Reset the ScopeMeter test tool
( + ).
2. Press to select the SCOPE mode.
3. Press .
4. Press .
5. Press turn GLITCH DETECT on.
6. Press to slow the time base.
Continue to slowly reduce the time base until you can
see enough detail of the waveform to make the best
amplitude, time base, and trigger settings. When you
select a time base of 2 sec/DIV or slower, the Roll
mode is activated. The Roll Mode functions like a pen
recorder. Try this on TP4.
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