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Figure 6-5
Based on sinθ=A/B or C/D, θ is the phase angle between channels, the definition of A, B, C, D see Figure
6-5. So the phase angle isθ=±arcsin（A/B）or θ=±arcsin（C/D）.
If the main spindle of elliptical within I, III quadrant, then the acquired phase angle should at I, IV quadrant,
that is within （0～π/2）or（3π/2～2π）.
If the main spindle of elliptical within II, IV, then the acquired phase angle should within （π/2～π）or
（π～3π/2）.
In addition, if the frequency or phase difference of the two signal to be measured are integer times,
calculating the frequency and phase relation of the two signals based on the Figure 6-6.
Figure 6-6
6.5 Multi-Scopes
In multi-scopes, CH1, CH2 can be set to different timebase scale, so that signals of different frequency in multiple
channels can be observed at the same time. Enter Multi-Scopes interface via horizontal menu.
Switch Multi-scopes to enter this mode, as shown in Figure 6-7. Each channel can be set to different frequency,
amplitude and waveform and all can be stable generated in multi-scopes.
In multi-scopes, it can turn on, off, activate channel. Timebase scale, volts/div, horizontal displacement, vertical
displacement, trigger setting of channel can be adjusted independently.
Multi-Scopes supports split screen (upper and down screen) for observing waveform, as shown in Figure 6-7.
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