5.5.3 Point Envelope Algorithm The Point Envelope algorithm is used with the Tolerance settings. You use this algorithm to create a “tolerance envelope” between adjacent point markers. A line segment is created between the two sets of tolerance limits for each marker. If the graph trace stays within the en- velope, the tolerance lines display green indicating that the measured results is within the envelope. If the graph trace goes outside the envelope at any point, the tolerance line segment displays red. If the data for the results is outside the high limit, the top line segment will display red. If the data for the result is outside the low limit, the bottom line segment will display red. NOTE When using an envelope tolerance, it is important the your Limit 1 and Limit 2 values represent the same tolerance, i.e., Limit 1=Low Tolerance and Limit 2=High Tolerance.
Graph trace within the tolerance envelope
A Tolerance Envelope is created by adjacent markers and the individual marker’s tolerance limits.
In this example, the top tolerance line segment is red because the graph trace is ABOVE the tolerance envelope that was created.
Using Point Envelope Tolerance Finds any data point within or outside of the Tolerance Envelope
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