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9-9

IM 701450-01E

Waveform Computation

Explanation

This section describes the procedure for setting the computation that inverts waveforms

in normal computation mode. If the user-defined computation option is installed, you

must first enter normal computation mode as described in section 9.1. For a description

of the setup procedure of user-defined computation, see section 9.9.

Turning ON/OFF the Computed Waveform Display and Computed Waveform Label

See section 9.1.

Operator

Select the inversion operator Invert as the operator for Math1 and Math2. The waveform

to be computed is inverted vertically (around the 0 level of the waveform) by multiplying

the waveform data by –1.

Waveform to be computed

Computed waveform

Waveform to Be Computed

The waveforms on which computation can be performed are as follows.

Computation Name Source

Math1 One channel from CH1 to CH4

Math2 One channel from CH1 to CH4 and Math1

• On the menu, CH1 to CH4 may be indicated as C1 to C4 and Math1 as M1.

• To perform computation on CH5 to CH8 on the DL7480, the optional user-defined

computation function is required.

Scaling