AEMC OX 7102 III, Руководство пользователя

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Oscilloscope Mode - The "Trigger" Menu
SCOPIX IV - 73
Oscilloscope Mode (cont'd)
Count
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.
Trigger delay
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.
Holdoff
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.
Qualifier
selects the settings on the qualifier source.
Trigger
selects the settings on the trigger source.
Coupling
Selection of the filter for the auxiliary trigger source:
AC
AC coupling (10 Hz to 200 MHz):
blocks the DC component of the signal
DC
DC coupling (0 to 200 MHz):
allows the entire signal through
LF Reject
Reject of source signal frequencies < 10 kHz
facilitates observation of signals with a DC component
HF Reject
Rejection of source signal frequencies > 10 kHz:
facilitates observation of signals with high-frequency noise
Edge
Selection of the trigger slope :
+
trigger on rising edge
-
trigger on falling edge
The selected trigger slope is indicated the status area.
Level
1.09V Adjustment of the trigger level with the stylus on the scroll bar.
Noise reject
•
No:
hysteresis ≈ 0.5 div.
•
Yes:
introduces a hysteresis of ≈ 1.5 div.
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