Technical data

Oscilloscope Familiarization Labs 2
4000 X-Series Oscilloscopes Advanced Training Guide 17
absolute voltage levels, such as from/to ± 1.0 V. Let’s now set up our scope
to measure just the rise time of this pulse relative to the 20% and 80%
threshold levels.
20 Press the Clear Meas softkey; then press the Clear All softkey.
21 Press the Settings softkey; then press the Thresholds softkey.
22 Press the Lower softkey; set the value to 20%.
23 Press the Upper softkey; set the value to 80%.
24 To return to the previous menu, press the (Back) front panel key
(just above the power switch).
25 Press the (Back) key again because we descended two levels into
this menu.
26 Press the Rise measurement on the right of the display; select Track with
Cursors.
Using these user-defined measurement threshold levels (20% and 80%), our
rise time measurement should be faster because we are now measuring
across a shorter segment of the waveform as shown in Figure 6. The
Figure 6 Performing a rise time measurement relative to 20% and 80% threshold levels.
Back
Back