User manual

37
Analysis
SOR/MENU section to select the formula set. The formula
set editor (soft menu key EDIT FORMULARY) lists all exis-
ting equations which may be edited. A blue bar indicates
that an equation is selected. It is important to distinguish
between editing the display and editing the parameters.
Use the universal knob in the CURSOR/MENU section to
select the respective equation and activate by pressing the
soft menu key VISIBLE. An activated, visible equation is
markedbyalled-ineyesymbolintheformula editor and
is listed in the short menu. With the soft menu UNIT you
can use the universal knob in the CURSOR/MENU section
to select the following units:
V (Volt)
A (Ampere)
Ω (Ohm)
V/A (Volt per Ampere)
W (Watt)
VA (Volt Ampere)
VAr (reactive power)
dB (decibel)
m (Milli, 10
-3
)
µ (Mikro, 10
-6
)
n (Nano 10
-9
)
p (Piko, 10
-12
)
f (Femto, 10
-15
)
a (Atto, 10
-18
)
z (Zepto 10
-21
)
y (Yokto, 10
-24
)
K (Kilo, 10
3
)
M (Mega, 10
6
)
G (Giga, 10
9
)
T (Tera, 10
12
)
P (Peta, 10
15
)
E (Exa, 10
18
)
Z (Zetta 10
21
)
Y (Yotta, 10
24
)
dBm (decibel milliwatt)
dBV (decibel Volt)
s (second)
Hz (Hertz)
F (Farad)
H (Henry)
% (percent)
º (degree)
π (Pi)
Pa (Pascal)
m (meter)
g (Acceleration)
ºC (Degress Celsius)
K (Kelvin)
ºF (Degrees Fahrenheit)
N (Newton)
J (Joule)
C (Coulomb)
Wb (Weber)
T (Tesla)
(dez) (decimal)
(bin) (binary)
(hex) (hexadecimal)
(oct) (octal)
DIV (Division, division)
px (pixel)
Bit (Bit)
Bd (Baud)
Sa (Sample)
The selected equation unit will be applied to the channel
description, cursor types and automatic measurement
types. The equation name is listed in the formula set editor
and is used as label in the curve window. The soft menu
key DELETE removes the equation from the formula set.
An equation consists of an operator (mathematical func-
tion) and up to two operands. Use the universal knob in
the CURSOR/MENU section to choose the operators:
Addition
Subtraction
Multiplication
Division
Maximum
Minimum
Square
Root
Amount
Pos. Wave
Neg. Wave
Reciprocal
Inverted
Common logarithm
Natural logarithm
Derivation
Integral
IIR Low Pass Filter
IIR High Pass Filter
For each corresponding equation, the input channels CH1,
CH2, CH3, CH4 and an adjustable constant are allowed as
OPERAND (sources). For the formula MA2, MA1 is added
as source, for MA3 the added source is MA2, for MA4 it is
MA3andnallyforMA5theaddedsource is MA4. From
theseveequations,youcancreate,saveandretrievea
totalofvedifferentsets.Newequationscanbeadded
by using the universal knob to select the menu item NEW
in the formula set editor. Pressing the soft menu key ADD
allows you to edit the new equation.
Use the soft menu key EDIT CONSTANT and the universal
knob in the CURSOR/MENU section to choose from the
following constants:
Pi
2x Pi
0,5 x Pi
User 1 to 10 (up to 10 customized constants are available)
For instance, if you select USER1 as constant, you can
press the soft menu key VALUE and use the universal knob
in the CURSOR/MENU section to select a numeric value.
You can apply the same method to set a DECIMAL POINT
andenteranadditionalSIprex(softmenukeyPREFIX).
YoumaychooseaUNITfromthesameSIprexesas
those that are available in the soft menu EDIT. Press SAVE
to store these settings as USER 1 and return to the menu
to edit the equation. You can store up to 10 of these custo-
mized constants. When saving a formula set, you may also
add a comment (soft menu key COMMENT). Press the key
SAVE to save this formula set with the determined name
and comment to the selected location. Stored formula sets
may be reloaded at any time. Press the MATH key to acti-
vate the Mathematics menu and then press the MENU key
below the VOLTS/DIV key. This menu displays the menu
itemLOAD.Thiswillstartthelemanagerwhichwilldis-
play the internal memory or the connected USB stick as
possible storage location. Select the respective formula set
leandpressthekeyLOADtoloadthele.Itwillbecalcu-
lated, but will not be included in the display. You can also
choose a NAME with a maximum of 8 characters, load a
formula set (from the internal memory or from a USB stick)
or save a formula set (internally or on a USB stick). You can
Fig. 9.4: Entry of constants and units