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FUNCTION REFERENCE

Newly acquired traces or previously stored traces can be used as source for this process and can be selected with the Δ control. The resulting trace is automatically written in a register memory (m1 for math1 or m2 for math2).

To see the result more clearly, use the ‘DISPLAY SOURCE on/off’ softkey to turn off the two source traces.

One example of using the MULTIPLY function is the measurement of dissipated power, by taking the voltage across a device and multiplying it by the current through the same device.

Mathematical description:

Result = S1 x S2

Key sequence:

MATH MATH1(2)

add substract multiply filter

Δ

Control to select the MULTIPLY process.

Control to select the first source trace.

on off

SCALE

T Δ

DISPLAY SOURCE yes no

ST7271

9303

Δ

Control to select the second source trace.

Toggle softkey to switch the MULTIPLY function on.

TRACK

Control to adjust the scale factor.

Δ

Control to adjust the offset factor.

auto

scale

Toggle softkey to select the autoscaling.

Toggle softkey to switch the source traces on and off.

Remote commands:

CPL: QW (Command to query a waveform) Refer to Chapter 6 for full details.

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Fluke PM3370B user manual Mathematical description, Result = S1 x S2