Measurements and Math Functions 5
InfiniiVision 7000B Series Oscilloscopes User’s Guide 187
Multiply
When you select the multiply math function, the voltage values of the
channel chosen in Source 1 are multiplied point by point by the voltage
values of the channel chosen in Source 2, and the result is displayed.
Multiply is useful for seeing power relationships when one of the channels
is proportional to the current.
Example: Multiply channel 1 by channel 2
• Scale — lets you set your own vertical scale factors for multiply
expressed as V
2
/div (Volts- squared/division), A
2
/div
(Amps- squared/division), or W/div (Watts/division or
Volt- Amps/division). Units are set in the channel Probe Menu. Press
the Scale softkey, then turn the Entry knob to rescale the math
waveform.
• Offset — lets you set your own offset for the multiply math function.
The offset value is in V
2
(Volts- squared), A
2
(Amps-squared), or W
(Watts) and is represented by the center horizontal grid line of the
display. Press the Offset softkey, then turn the Entry knob to change
the offset for the math waveform.
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