Software Features - Velleman Modules VM205 Mode D'emploi

SOFTWARE FEATURES

Volts/Div: Selected value indicates the peak-to-peak voltage required to
produce a peak-to-peak defl ection of one major division on the screen.
Y-Position Scrollbar: Positions the trace vertically on the screen.
Time/Div: Selects the time setting for the beam to sweep one major
division on the screen.
Trigger On/Off: Selects free run mode or trigged mode.
Trigger Level: Selects the signal level at which the sweep is
triggered. Triggering reference mark is displayed with the horizontal line
on the left side of the screen.
Run: Selects recurrent display update. Pressing the Stop button freezes
the display.
Markers: There are two horizontal markers for measuring voltage. The
voltage difference (dV) is displayed. There are two vertical markers for
measuring time (T1, T2), time difference (dT) and frequency (1/dT).
Logic Analyzer Display: On the right side of the display there are 10
check boxes to select displayed logic analyzer channels.
TRIGGER EDGE
(Selects the triggering slope)
Rising: Trigger occurs when triggering signal crosses trigger level in a
positive going direction.
Falling: Trigger occurs when triggering signal crosses trigger level in a
negative going direction.
COUPLING
AC: the input signal is capacitive coupled to the input amplifi er/attenu-
ator. Only the AC components are measured.
DC: the input signal is directly connected to the input amplifi er/attenu-
ator. Both AC and DC voltage are measured.
MOVING THE MARKERS
Place the mouse pointer over a dashed marker line.
Press and hold the left mouse button. The marker line turns solid.
Drag the marker to the appropriate position
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