AEMC OX III Series User Manual page 180

Applications (cont'd)
10. Display of slow
phenomena "ROLL"
mode
Examination of the
signal
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This example examines the analysis of slow phenomena for time bases ranging
from 200 ms to 200 s. The samples are displayed constantly, without waiting for
the Trigger (ROLL mode).
Examination of slow phenomena over a significant period of time
• Select "Oscilloscope" mode (key opposite).
• Inject on the CH1 input a sinusoidal signal at 1 Hz and 1 Vrms.
• Adjust the scan speed: using the scrollbar in the time base window:
• Validate signal CH 1:
Vert Menu Display
• Adjust the CH1 sensitivity:
Vert Menu CH1
• Adjust the CH1 coupling:
Vert Menu CH1
• Select the trigger parameters:
Trig. Menu Parameter
• Adjust the trigger mode:
Trig. Menu Single mode
or using the SGLE REFR key.
Use the stylus to move the Trigger level symbol up or down in the display
area:
Trigger level is < the signal level
once it has filled the acquisition memory (STOP mode).
- Trigger level > Signal level
is analyzed constantly.
The trigger level may be set precisely, using the trigger parameters menu:
Trig. Menu Parameter
• Start acquisition using the RUN/HOLD key (RUN mode).
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500 ms/div
or using the keys opposite.
Trace 1
or by pressing the CH1 key
or on the display of the CH1 trace parameters.
Sensitivity/coupling
or using the keys opposite.
Sensitivity/coupling
or by pressing the AC/DC GND key.
Main Source
Coupling: AC
Front: + or using the key opposite.
the oscilloscope stops data acquisition
data acquisition no longer stops and the signal
Main Level.
The signal is analyzed constantly
(RUN mode).
This trace scroll function allows the
form of the signal to be monitored.
for studying low-frequency signals.
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500 mV/div (1/10 probe)
DC
CH1
This function is recommended
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Applications
SCOPIX