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190 Series III
Users Manual
24
Pass - Fail Tests
You can use 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 be stored. The most appropriate reference waveform for the Pass-Fail
test is a waveform envelope.
To use the Pass - Fail function with a waveform envelope:
1. Show a reference waveform on the display. See Waveform Comparisons.
2. Use the cursor and E to:
a. Highlight Pass Fail Testing menu.
b. Select Store Fail saves each scope screen with samples outside the reference
c. Select Store Pass saves each scope screen with no samples outside the reference
Each time a scope screen is saved you will hear a beep. See Replay the 100 Most Recent Scope
Screens for information on how to analyze the saved screens.
Waveform Analysis
You can use the analysis functions CURSOR, ZOOM and REPLAY to perform detailed waveform
analysis. See Replay, Zoom and Cursors for more information.
Automatic Meter Measurements (190-xx4)
The test tool offers a wide range of automatic meter measurements. You can display four large
numeric readings: READING 1...4. These readings are selectable independently, and the
measurements can be done on the input A, B, C or input D waveform. In METER mode the
waveforms are not displayed. The 10 kHz HF rejection filter is always on in the METER mode.
See Noisy Waveforms
Meter Measurement Selection
To choose a current measurement for input A, do the following:
1. Press
M to show the METER key labels.
2. Open the READING menu with 1.
3. Press 1 to select the reading number to be displayed, for example READING1.
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