Measurement Description
Input Power Enter the input power, This control is only present when Class is set to Class C, Table 3 or
Class D.
Filter (1.5 s) Toggles the filter on and off.
Grouping Toggles the grouping on and off.
Set to IEC Defaults Sets to IEC defaults.
Horizontal
Sets the horizontal scale for greater than 10 cycles.
Power Level Select a High or Low power level.
Current Select either measured or rated current.
Rated Current When rated current is selected, enter the current value.
Global Measurement Settings
Set the Hysteresis level. See Global Measurement Settings panel (Measurement
configuration menu) on page 1
12
Ripple Measurements panel (optional)
Measurement Description
Voltage Source
Select which channel the voltage waveform is on.
Current Source
Select which channel the current waveform is on.
Ripple Source
Select which channel to measure the ripple on.
Do Vertical Autoset
Removes the DC component from the signal by adding vertical offset and then auto-scaling
the AC component for optimal measurement accuracy
.
Typically, a ripple measurement involves looking at a very small voltage riding on a large
voltage. You want to use the internal resolution of the oscilloscope as effectively as
possible to measure that small voltage. With Do Vertical Autoset, you can devote much
more of the oscilloscope's ADC range to measurement of the desired ripple.
Set Offset to 0 V
Removes all vertical offset.
Modulation Measurements panel (optional)
Measurement Description
Voltage Source
Select which channel the voltage waveform is on.
Current Source
Select which channel the current waveform is on.
Modulation Source
Select which channel to measure the modulation on.
Modulation Type
Select what to measure. Choices include: positive pulse width, negative pulse width,
period, frequency
, positive duty cycle, and negative duty cycle.
Table continued…
Menus and dialog boxes
3 Series Mixed Domain Oscilloscope Printable Help 109
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