3M
™
Advanced Systems Tester 900AST Series
44
The TDR Memory screen defaults to the control
settings that were active when the stored trace was
saved using the “TDR Save” function.
Peak
Use the TDR Peak mode to capture events that may
be intermittent. This mode continuously detects and
displays the maximum and minimum traces that
occur from the time that the mode is first selected.
The ‘live’ trace is also displayed continuously. As a
new maximum or minimum trace is detected, it will
replace the previous one on the display.
If the circuit being tested is stable (no intermittent
faults), then the minimum, maximum and “live”
traces should appear as a single trace.
If any of the control values are changed, the peak
histories will be erased and new values will begin to
display.
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