Application E xamp les
4. Push More repeatedly until you select
Reference L evels from the popup menu.
Reference
Levels
5. Push Set Levels in to select units.
Set Levels
in
%|
Units
6. Push High Ref and tu rn multipurpose knob a
to enter 2.00 V. If needed, push Fine to change
the sen sitivity of the multipurpose kn ob.
High Ref
(a) 2.00 V
Mid Ref
7. Push Low Ref and turn multipurpose knob a to
enter 800 mV. If needed, pu s h Fine to change
the sen sitivity of the multipurpose kn ob.
Low Ref
(a) 800 mV
Rise time is typically m easu red between the 10% and 90% amplitude levels of a signal. These are the default reference levels
that t he oscilloscope uses for rise time measurements. However, in this example, you need to measure the time that the signal
takes to pass between the 0.8 V and 2.0 V levels.
You can customize the rise time measurement to measure the signal transition time betwee n any two re ference levels. You
can set each of these refere nce levels to a specific percent of the signal amplitude or to a specific level in vertical units (such
as volts o r amperes).
236 DPO3000 Series Oscilloscopes User Ma nual
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