Application Examples
To select the ri
se time measurement, follow these steps:
1. Push the Meas button to see the Select Measurement menu.
2. Push the channel 1 button and then the Select Measurement for Ch1 screen
button.
3. Select the Rise Time measurement.
Rise time is typically measured between the 10% and 90% amplitude levels of a
signal; these are the default reference levels the oscilloscope uses for rise time
measurements. However, in this example you nee d to measure the time the signal
takes to pa
ss between the 0.8 V and 2.0 V levels.
You can customize the rise time measurement to measure the signal transition
time betw
een any two reference levels. You can set each of those reference levels
to a specific percent of the signal amplitude or to a s pecific level in vertical units
(such as volts or amperes).
Setting Reference Levels. To set the reference levels to specific voltages, follow
these steps:
1. Push the Reference Levels screen button.
2. Push the Set Levels in screen button to select units.
3. Push the High Ref screen button.
4. Use the general purpose knob to select 2.0 V.
5. Pus
htheLow Ref screen button.
6. Use the general purpose knob to select 800 mV.
The measurement verifies that the transition time (3.842 ns) meets the specification
( ≤ 10 ns).
TDS3000C Series Oscilloscope User Manual 31
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