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Mathematical function
The mathematical functions are used to display measuring channels added, subtracted, multiplied or
divided. Alternatively, the FFT function can be activated.
Functional scope of the mathematical functions:
Function menu
Setting
Description
Wfm Math
Factor1
CH1
CH2
CH3
CH4
Select signal source factor 1
Sign
+ - × /
Selects the mathematical function to
calculate from source 1 to source 2 (e.g.
CH1 + CH2)
Factor2
CH1
CH2
CH3
CH4
Select signal source factor 2
Vertical
Div
Voltage
Select voltage/division for displayed
mathematical waveform with multi-
controller
FFT
Source
CH1
CH2
CH3
CH4
Select channel as FFT source
Window
Rectangle
Hanning
Hamming
Blackman
Bartlett
Emperor
Select window type for FFT display.
Format
Vrms
dB
Select Vrms format.
dB Select format.
Hori
Hz
Hz/div
Select horizontal position for FFT
waveform with multi-controller
Vertical
div
v or dB
Select vertical position for FFT waveform
with multi-controller
Example- Add waveforms CH1 & CH2:
1. Press the Math button to display the maths menu. The additional mathematical waveform (pink) is
now shown in the display.
2. Select Dual Wfm Math from the bottom menu.
3. For Factor1, select channel 1 ① in the left selection menu.
4. Select the addition function + in the right-hand menu as the mathematical operator.
5. For Factor2, select channel 2 ② in the left selection menu.
6. Select Vertical in the right menu; select the menu several times to change the symbol in the
display to the upper position or lower position. Depending on the position, change the zero position
of the mathematical curve (pink) or the voltage/division for this curve by pressing the multi-controller.