Operating Basics
on the display i
s 0.04 × range/div. 1 horizontal pixel on the display is 0.0333
× range/div.
Table 2: Pi
xel colors description
Pixel colo
r
Descripti
on
black pixels
basic wav
eform
gray pixels ± 2 pixels envelope
Pass-Fail Testing
You can u
se a reference waveform as a test template for the actual waveform. If at
least one sample of a waveform is outside the test template, the failed or passed
scope screen will be stored. Up to 100 screens can be stored. If the memory is
full, the first screen will be deleted in favor of the new screen to b e stored.
The most appropriate reference waveform for the Pass Fail test is a waveform
envelope.
To use the Pass-Fail function using a waveform envelope, do the following:
1. Display a reference waveform as described in the previous section Comparing
Waveforms. (See page 44.)
2. From the Acquire button ACQUIRE OPTIONS menu, select Reference.
3. Se
lect one of the following options from the Pass Fail Testing menu:
Store “Fail”: Each screen with samples outside the reference will be
st
ored.
Store “Pass”: Each screen with no samples outside the reference will
b
estored.
Off: No sc reens will be stored.
Each time a screen is stored you will hear a beep. Yo u can read more about how
to analyze s tored screens using replay, zoom, and cursors. (See page 52, Analyze
Waveforms.)
46 THS3000 Series Oscilloscopes User Manual
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