27
Subject to change without notice
All entries and settings will be automatically stored upon leaving
the Mathematics menu or turning the scope off. Measurement
results will be lost after turn-off.
”Mathematics“ offers:
7.1 Equations set
Using the INTENS knob
5 sets of formulas can be selected for
editing. This way 5 user-defi ned formula sets may be created.
Each set of formulas consists of 5 lines with one equation
each, designated MA1 to MA5. An equation may occupy one or
more lines. In this case it has to be kept in mind that the lines
of equations are processed as a stack, i.e. starting with MA1 =
1
st
line to MA5 = 5
th
line.
STOP
Please note:
That formula set is valid which is shown prior to
leaving the MATH menu.
7.2 Edit
”Edit“ opens the ”Mathematics Edit“ submenu.
7.2.1
Equation
5 equations may be selected with the INTENS knob
. Each
equation consists of the name of a result (e.g. MA5), the
= sign, the function (e.g. ADD) and (fi rst operand, second ope-
rand). Remark: The second operand will not be displayed with
all functions.
7.2.2
Function
By using the INTENS knob
, the following functions may be
selected:
ADD:
Operand 1 + operand 2
SUB:
Operand 1 – operand 2
MUL:
Operand 1 times operand 2.
DIV:
Operand 1 divided by operand 2.
SQ:
Operand 1 squared.
INV:
Changes sign of operand 1.
1/:
Calculates 1/operand 1 (reciprocal value).
ABS:
Takes absolute value of operand 1 (removes sign)
POS:
Only values of operand 1
>
0 are displayed,
<
0 will
not be displayed.
NEG:
Only values of operand 1
<
0 are displayed,
>
0 will
not be displayed.
7.2.3
Operand 1
The INTENS knob
allows the selection of these signals as
operands:
CH1:
CH1
signal.
CH2:
CH2
signal.
RE1:
Signal from reference memory 1
RE2:
Signal from reference memory 2
MA1:
Result of equation named MA1.
MA2:
Result of equation named MA2
MA3:
Result of equation named MA3.
MA4:
Result of equation named MA4
MA5:
Result of equation named MA5.
The next step after MA5 causes the display EDIT. Calling EDIT
opens a sub submenu described under item 7.2.5.
7.2.4
Operand 2:
The INTENS knob
allows the selection of the same operands
as mentioned under item 7.2.3 (Operand 1) if ADD, SUB, MUL
or DIV function is chosen.
The next step after ”MA5“ causes the display EDIT. Calling EDIT
opens a sub submenu described under item 7.2.5.
4.2
Under remote control this pushbutton will be illuminated.
After pressing the pushbutton, control is returned to the front
panel.
ANALOG/DIGITAL
Switches between analog (green) and DSO modes (blue). The
operating mode (Yt or XY) will not be affected. If component
test mode was selected, possible only in analog mode, and the
scope is switched to digital the operating mode last used when
in DSO mode will be reinstalled.
Y parameters will not be changed by the switching. Time base
modes will be changed due to the different operation of the
time bases in both modes. After any switching time base A will
be selected. The time base speeds selected will not be affected
unless they are not available any more, then the maximum
value will be chosen.
RUN/STOP
This pushbutton has several functions:
6.1
Analog mode, single sweep
The RUN/STOP pushbutton is used to set the time base for
a single sweep. Press MODE
and activate ”Single“ in this
menu. By pressing RUN/STOP the scope will wait for the next
trigger indicated by STOP blinking. After a signal triggered the
time base and the sweep is over the scope will stop, indicated
by STOP continuously illuminated. Each time the pushbutton
is depressed the scope will be activated anew for one trigger
resp. one sweep.
6.2 DSO mode, single capture
In order to prepare the scope for a single capture press MODE
and select ”Single“ in the menu presented. By pressing
RUN/STOP the scope will start to continuously acquire and store
so that later also the signal preceding the occurrence of the
trigger (Pre-trigger) will be available. STOP will blink in order to
signal that as yet no trigger was recognized. Upon receipt of a
trigger the acquisition will be completed so the signal following
the trigger (Post-trigger) will later be available, too. STOP will
then remain illuminated. The signal display on the screen will
be frozen. Pressing RUN/STOP again will prepare for another
acquisition as described. Each new acquisition will overwrite
the preceding one.
In order to leave this mode enter the MODE menu and select
”Auto“ or ”Normal“.
6.2.1
DSO mode, ending or interrupting a capture.
Any capture in progress may be stopped by pressing RUN/
STOP.
6.2.2
DSO mode, reset function.
Pressing RUN/STOP twice in ”env“ (Envelope) or ”avg“ (Average)
mode, where the signal display is the result of more than one
signal data acquisition, causes the previous signal capture
results to be deleted and a new start of the signal capture.
MATH
Only available in DSO mode.
This pushbutton calls the ”Mathematics“ menu and the ”Formu-
la editor“. With the ”Mathematics“ menu stored signals may be
mathematically processed, either directly or with reference to
other stored signals. The results may be graphically displayed
on the screen and determined by the cursor functions.
C o n t r o l s a n d R e a d o u t
