33
Analysis
❙
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)
Fig. 9.3: Formula editor for formula sets
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
❙
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)
❙
Square
❙
Root
❙
Amount
❙
Pos. Wave
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 finally for MA5 the added
source is MA4. From
these five equations, you can create, save and retrieve a
total of five 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 prefix (soft menu key PREFIX).
You may choose a UNIT from the same SI prefixes 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 file manager which will dis
-
play the internal memory or the connected USB stick as
possible storage location. Select the respective formula set
Fig. 9.4: Entry of constants and units
❙
Neg. Wave
❙
Reciprocal
❙
Inverted
❙
Common logarithm
❙
Natural logarithm
❙
Derivation
❙
Integral
❙
IIR Low Pass Filter
❙
IIR High Pass Filter