Dataman 520 Series - Manual (Page 16)

DATAMAN 520 series oscilloscope with rollmode
User’s Guide
If the is activated, the displayed dot is calculated as a minimum of measured
samples.
If both the and are activated, the line between maximum and minimum value
of samples is displayed.
“Clear Scr” clears the oscilloscope screen.
4.7. Timebase controls
The timebase controls are located in the bottom of the main window.
Fig. 4.7.1. – Timebase controls
The scrollbar on the left side controls the sampling frequency. The actual sampling
frequency is shown above. Usable values are 50S/s to 5MS/s settable in 1-2-5
sequence.
WARNING: The fastest sampling frequency is available only if the oscilloscope
is connected to computer via a USB 2.0 interface. It is strongly recommended to
close any other application and choose the “Rew” display mode or switch the
oscilloscope display off (see chapter 4.4.). If the oscilloscope is connected to the
computer via the USB 1.1 interface the maximum available sampling frequency
is 250kS/s.
The scrollbar on the right side controls the display timebase. The following
information is displayed above this scrollbar:
- time of one grid division
- 1/time of one grid division
- number of samples aggregated to one screen point
TIP: For more information about display mode please see chapter 4.6.
If the change of one scrollbar results in a lack of samples to create the dot, the
position of the second scrollbar can be adjusted to get one sample for each displayed
dot.
WARNING: If the scrollbar position is adjusted due to above mentioned reasons
automatically, it won’t be readjusted back, when the conditions are gone.
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