Setting The Probe Attenuation; Invert A Waveform; Wave Math Function Menu Settings - Extech Instruments MS420 User Manual

S
ETTING THE PROBE ATTENUATION
To prevent excessive input voltage, set the probe attenuation level to the 10X
position.
Next, magnify the display by 10X to match the displayed amplitude to the actual
amplitude.
Press F3 Probe to adjust the probe attenuation level.
Table: Probe attenuation level and the corresponding menu setting
Probe attenuation
level
1:1
10:1
100:1
1000:1
I W
NVERT A AVEFORM
Inverted waveform: The displayed signal reverses 180 degrees relative to ground.
Press F4 Invert to invert the waveform; press F4 Invert again to exit the inversion
mode.
WAVE MATH F
UNCTION
The WAVE MATH functions show the calculation results (adding, subtracting,
multiplying or dividing CH1 and CH2 channel waveforms). Arithmetic operation
results can be displayed using a grid or a 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 (in 1, 2, and 5 step increments)
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 using the CHM ZERO key.
The corresponding operation function table
Setting Description
CH1-CH2 CH1 waveform minus CH2 waveform
Corresponding Menu Setting
1X
10X
100X
1000X
M S
ENU ETTINGS
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