Fig.6-30
It is similar to the interface of order replay, but add the azury diagram above the HR trend. It is
the RR interval of the current position that displayed. At the same time, there is a red rectangle
appear on the multi-channel graph. The waveform that the red rectangle indicates corresponds to
the waveform indicated on the RR interval graph.
The user can choose any parts of RR interval to scan by using the HR trend at the bottom. User