AEMC OX III Series User Manual page 73

Oscilloscope Mode - The "Trigger" Menu
Oscilloscope Mode (cont'd)
Count
Trigger delay
Holdoff
Qualifier
Trigger
Coupling
Edge
Level
Noise reject
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Selects the edge trigger with counting of events.
The count is triggered by the auxiliary source. The main source serves as a
clock for the count.
Effective triggering occurs after the end of the count on the next event from the
main source.
3 Adjustment with the stylus using the setting scroll bar to choose the
number of events required.
Double-tapping in this field displays a virtual numeric keypad which can be
used to directly input the value.
232µs Adjustment with the stylus using the setting scroll bar, disabling of
the trigger for a predefined period and, among other things,
stabilization of the trigger on pulse trains.
Double-tapping in this field displays a virtual numeric keypad which can be used
to directly input the value.
selects the settings on the qualifier source.
selects the settings on the trigger source.
Selection of the filter for the auxiliary trigger source:
AC coupling (10 Hz to 200 MHz):
AC
blocks the DC component of the signal
DC coupling (0 to 200 MHz):
DC
allows the entire signal through
Reject of source signal frequencies < 10 kHz
LF Reject
facilitates observation of signals with a DC component
Rejection of source signal frequencies > 10 kHz:
HF Reject
facilitates observation of signals with high-frequency noise
Selection of the trigger slope :
trigger on rising edge
+
trigger on falling edge
-
The selected trigger slope is indicated the status area.
1.09V Adjustment of the trigger level with the stylus on the scroll bar.
•
No: hysteresis ≈ 0.5 div.
•
Yes: introduces a hysteresis of ≈ 1.5 div.
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