OWON HDS Series - Manual (Page 47)

OWON HDS Series Handheld DSO & DMM 8-Advanced Function of Oscilloscope
Press F4 Invert to start Invert; again press F4 Invert to close Invert.
8.3 Make the Math Function Menu Setting
The MATH functions in showing the result of adding, subtracting, multiplying or dividing
calculation on CH1 and CH2 channel waveforms. Also, the result of arithmetic operation can be
measured with grid or cursor. The amplitude of the calculated waveform can be adjusted with
CHM VOL, which is displayed in the scale factor form. The amplitude ranges from 0.001 through
10 and steps in the 1-2-5 form, that is, it can be expressed as 0.001X, 0.002X, 0.005X…10X. The
position of the calculated waveform can be adjusted up and down with the CHM ZERO key used.
The corresponding operation function table
Setting Description
CH1-CH2
CH1 waveform minus CH2 waveform.
CH2-CH1 CH2 waveform minus CH1 waveform
CH1+CH2 Add CH1 waveform into CH2 waveform.
CH1*CH2 Multiply CH1 waveform and CH2 waveform.
CH1/CH2 Divide CH1 waveform by CH2 waveform.
To perform the CH1+CH2 waveform calculation, do the following:
1. Press the MENU key and the function menu appears at the right of the screen.
2. Press the MENU ▲ or MENU ▼ key to select MATH and 5 options are displayed at the
bottom of the screen.
3. Press the F3 CH1+CH2 key and the obtained waveform M appears on the screen. Again,
press the F3 key and Close the waveform M.
4. Press the OSC OPTION key and the following is displayed on the screen:
◄/► – Time Base
▲/▼ –CH Math Volts/Div
5. Press the OSC ▲ or OSC ▼ key to adjust the amplitude of the waveform M.
6. Again, press the OSC OPTION key twice and the screen shows the following:
◄/► – Time
▲/▼ – CHM Zero
7. Press the OSC ▲ or OSC ▼ key to adjust the position of the waveform M.
Now, look at the display and you will find a screen that looks like the following figure 37.
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