Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide

14 Mask TestingRun UntilThe Run Until softkey lets you specify a condition on which to terminatetesting.• Forever — The oscilloscope runs continuously. However, if an error occursthe action specified using the On Error softkey will occur.• Minimum # of Tests — Choose this option and then use the #ofTestssoftkey to select the number of times the oscilloscope will trigger, displaythe waveform(s), and compare them to the mask. The oscilloscope willstop after the specified number of tests have been completed. Thespecified minimum number of tests may be exceeded. If an error occurs theaction specified using the On Error softkey will occur. The actual number oftests completed is displayed above the softkeys.• Minimum Time — Choose this option and then use the Test Time softkeyto select how long the oscilloscope will run. When the selected time haspassed the oscilloscope will stop. The specified time may be exceeded. Ifan error occurs the action specified using the On Error softkey will occur.The actual test time is displayed above the softkeys.• Minimum Sigma — Choose this option and then use the Sigma softkey toselect a minimum sigma. The mask test runs until enough waveforms aretested to achieve a minimum test sigma. (If an error occurs theoscilloscope will perform the action specified by the On Error softkey.)Note that this is a test sigma (the max achievable process sigma,assuming no defects, for a certain number of tested waveforms) asopposed to a process sigma (which is tied to the amount of failures pertest). The sigma value may exceed the selected value when a small sigmavalue is chosen. The actual sigma is displayed.186 Agilent InfiniiVision 2000 X-Series Oscilloscopes User's Guide