Velleman PCS100A pcs100 - pcs500 - k8031 - Manual (Page 13)

PCS500 / PCS100 / K8031
13
TIME/DIV
Selects the time setting for the beam to sweep one major division on the
screen. By selecting different TIME/DIV settings it is possible to zoom the
frozen waveform 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.
TRIGGER Channel
Selects the trigger source signal (CH1, CH2 or EXT)
TRIGGER Edge
Selects the triggering slope:
Arrow up: Trigger occurs when triggering signal crosses trigger level in a
positive going direction.
Arrow down: Trigger occurs when triggering signal crosses trigger level in a
negative going direction.
>|<
Resets the triggering x-position reference point. Triggering reference mark is
displayed with the vertical line on the bottom of the screen.
|< (PCS100 / K8031)
Resets the trace starting from the triggering point.
RUN
Selects recurrent display update mode (RUN). Pressing the button again
freezes the display.
SINGLE
When button is depressed and the trigger level is reached, refreshment of the
display takes place only once.
X-POSITION SCROLLBAR (Below the waveform display)
Positions the trace horizontally on the screen. Triggering reference point is
displayed with the vertical line on the bottom of the screen.
S/L
Button selects linear (L) or smoothed (S) interpolation. Linear interpolation
connects the data points with straight lines. Smoothed interpolation uses
curves to connect the data points . Smoothed interpolation gives better
waveform display at highest sine frequencies. Linear interpolation is better for
step signals. The S/L selection effects only at TIME/DIV settings 0.2 and 0.1us
(and in 1GS/s modes for the PCS500).