Fluke 190 Series II User Manual page 64

Fluke 190 Series II
Users Manual
Making Rise Time Measurements
To measure rise time, do the following:
1 From scope mode, display the
CURSOR
cursor key labels.
2 Press to highlight
F1
Observe that two horizontal
cursors are displayed.
3 For multiple traces select the
F4
required trace A, B, C, D or M (if a
math function is active).
4 Select MANUAL or AUTO (this
F3
automatically does steps 5 to 7).
5 Move the upper cursor to 100% of
the trace height. A marker is
shown at 90%.
6 Highlight the other cursor.
F2
7 Move the lower cursor to 0% of
the trace height. A marker is
shown at 10%.
56
The reading shows the risetime from 10%-90% of the
trace amplitude.
(rise time).
Figure 27. Risetime Measurement