Technical data

Oscilloscope Familiarization Labs 2
4000 X-Series Oscilloscopes Advanced Training Guide 37
Lab #6: Using Mask Test
With mask testing you can set up a pass/fail test criteria for automatically
testing waveforms to see if they conform to specific wave shapes. In this
lab we will test a digital signal that includes an infrequent glitch. With
InfiniiVision’s hardware- based mask testing capability, we will be able to
test over 200,000 waveforms per second and gain insight into the
statistical occurrences of this particular glitch. To enable Mask Testing,
your oscilloscope must have the mask test option installed (Option
DSOX4MASK). You can verify the installed options on your oscilloscope at
[Help] > About Oscilloscope.
1 Connect the channel-1 probe to the Demo 1 terminal and ground.
2 Press [Default Setup] on the scope’s front panel.
3 Press [Help]; then press the Training Signals softkey.
4 Turn on Clock with Infrequent Glitch signal.
5 Set channel- 1 to 500 mV/div and position/offset to 1.0 V.
6 Push the Trigger Level knob to set the trigger level at 50%.
7 Set the timebase to 20 ns/div.
8 Set the waveform intensity to 100% by first pressing the [Intensity]
button; then turn the Entry knob.