Fluke Biomedical 190M - Manual (Page 66)

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