Fluke 125 - Making Rise Time Measurements

Fluke 125
Users Manual
2-24
Making Rise Time Measurements
To measure rise time, do the following:
c From Scope mode, display the
Cursor Key functions.
d Press to highlight (rise time).
Observe that two horizontal
cursors are displayed.
e If only one trace is displayed,
select MANUAL or AUTO. AUTO
automatically does steps 4 to 6.
For multiple traces select the
required trace A or B.
f Move the upper cursor to 100% of
the trace height. A marker is
shown at 90%.
g Highlight the other cursor.
h Move the lower cursor to 0% of
the trace height. A marker is
shown at 10%.
Figure 2-20. Risetime Measurement with Cursors
The reading now shows the risetime from 10%-90% of the
trace amplitude and the voltage at the cursors in relation to
the zero icon (-). See Figure 2-20.
i Turn off the cursors.