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HDO9000 High Definition Oscilloscopes Operator's Manual
Param(eter) Compare Qualifiers
Pass/Fail qualifiers (Qx) can be configured to compare different parameter measurements (Px) to
each other or to a user-defined limit (or statistical range).
Comparing a Measurement to a Limit
This method takes the result of a selected measurement parameter and compares it to a user-
defined value or range of values.
1. Choose Analysis > Pass/Fail to display the Pass/Fail dialog.
2. Touch the Qx button where you want to set up a qualifier.
3. From the pop-up menu, choose Param compare.
4. On the Qx dialog, touch Source1 and choose the parameter.
5. On the ParamCompare dialog, touch Compare Values and select All or Any from the pop-up.
By selecting All, the condition is true only if every waveform falls within the limit. Selecting Any
makes the condition true if just one waveform falls within the limit.
6. Touch Condition and select a math operator, then touch Limit and enter the value that
completes the condition. The value entered acquires properties corresponding to the
parameters being tested. For example, if you are testing a time parameter, the unit is seconds.
7. If you chose to set a Delta limit, also enter the Absolute or % Delta value. You may choose
instead to set Limit and Delta using one of the buttons at the bottom of the dialog.
Comparing Parameter Measurements
When using Dual Param Compare, two measurements are compared, rather than two waveforms.
1. Choose Analysis > Pass/Fail to display the Pass/Fail dialog.
2. Touch the Qx button where you want to set up a qualifier.
3. From the Pass/Fail Condition menu, choose Dual Param Compare.
4. On the left-hand Qx dialog, select the parameters to compare in Source1 and Source2.
5. On the ParamCompare dialog, touch Compare values and select All or Any from the pop-up.
By selecting All, the test are true only if every waveform falls within the set limit. Selecting Any
makes the test true if just one waveform falls within the limit.
6. Touch Condition and select the math operator that completes the condition. The Summary
field shows the completed condition that is represented by this qualifier.
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