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Chapter 6 Trigger System
93
Fine adjustment: After moving the trigger level, tap the fine adjustment button in the lower left corner of the screen
for fine adjustment of the trigger level.
Note: Fine adjustment requires activation of the trigger level control function.
Set trigger hold-off time
The trigger hold-off time can set up the waiting time of the oscilloscope after the trigger and before the trigger
circuit is reconnected. During hold-off time, the oscilloscope does not re-trigger until the end of the hold-off time,
and the hold-off time can be used to stably trigger complex waveforms. The trigger hold-off time ranges from
200ns~10s.
The hold-off may be used to trigger on repetitive waveforms with multiple edges (or other events) between
waveform repetitions. If the shortest time between triggers is known, the hold-off may also be used to trigger on the
first edge.
For example, to obtain stable trigger on the repetitive pulse trigger shown below, set the hold-off time to a
value >200ns but <600ns.
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