User Manual AMETEK Programmable Power
RS Series 121
PRE TRIGGER DELAY
Alternatively, a negative trigger delay value may be specified up to the maximum time window
depth of the acquisition window. The value may be entered directly from the keyboard or using
the knob. The following time interval range is available:
128 msec to 1280 msec.
This situation is shown in Figure 4-38. The example shows a similar scenario as before, only this
time the trigger delay was set a -20 ms. Notice that the data acquisition window now contains
data that occurred before the user pressed the ENTER key to start the acquisition.
Figure 4-38: Negative Trigger Delay (Pre-Trigger Data)
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