Extech Instruments MS420 User Manual page 32

CH2-CH1 CH2 waveform minus CH1 waveform
CH1+CH2 Add CH1 waveform to CH2 waveform
CH1*CH2 Multiply CH1 and CH2 waveforms
CH1/CH2 Divide CH1 by CH2
To perform a CH1+CH2 waveform calculation, perform the following:
1. Press the MENU key; the function menu will appear at the right of the screen.
2. Press MENU ▲ or MENU ▼ to select WAVE MATH. Five (5) selectable options will
then be displayed at the bottom of the screen.
3. Press the F3 CH1+CH2 key and waveform M appears on the screen. Press the F3
key again to close waveform M.
4.
Press OPTION and the display will show the following:
— CH Math Volts/Div
— CH M Zero
(yellow)
Press ◄
(yellow)
Press ▲
Refer to Figure 22.
► (yellow)
or to adjust the range of the M waveform
(yellow)
or ▼ to adjust the position of the M waveform
Figure 22: Waveform Mathematics
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