AEMC OX 7102 III, Руководство пользователя

Страница: 180 / 226

Applications
IX - 180 SCOPIX
Applications (cont’d)
10. Display of slow
phenomena “ROLL”
mode
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:
500 ms/div
or using the keys
opposite.
• Validate signal CH 1:
Vert Menu Display Trace 1
or by pressing the CH1 key
or on the display of the CH1 trace parameters.
•
Adjust the CH1 sensitivity:
Vert Menu CH1 Sensitivity/coupling 500 mV/div (1/10 probe)
or using the keys
opposite.
•
Adjust the CH1 coupling:
Vert Menu CH1 Sensitivity/coupling DC
or by pressing the AC/DC GND key.
•
Select the trigger parameters:
Trig. Menu Parameter Main Source CH1
Coupling: AC
Front: + or using the key
opposite.
•
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 the oscilloscope stops data acquisition
once it has filled the acquisition memory (STOP mode).
- Trigger level > Signal level data acquisition no longer stops and the signal
is analyzed constantly.
The trigger level may be set precisely, using the trigger parameters menu:
Trig. Menu
Parameter Main Level.
•
Start acquisition using the RUN/HOLD key (RUN mode).
Examination of the
signal
The signal is analyzed constantly
(RUN mode).
This trace scroll function allows the
form of the signal to be monitored.
This function is recommended
for studying low-frequency signals.
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