E30 Digital Electrocardiograph User’s Manual
3-4
Electrode
labels
(IEC)
Electrode
colors
(IEC)
Electrode
Labels
(AAMI)
Electrode
colors
(AAMI)
Position
N Black RL Green
Right leg (On crus, midpoint
between knee and ankle.)
F Green LL Red
Left leg (On crus, midpoint
between knee and ankle)
C1 Red V1 Red
On the fourth intercostal space
at the right sternal border
C2 Yel low V2 Yel low
On the fourth intercostal space
at the left sternal border
C3 Green V3 Green
Midway between the V2 and
V4 electrode positions
C4 Brown V4 Blue
On the fifth intercostal space
at the left midclavicular line
C5 Black V5 Orange
On the left anterior axillary
line, horizontal with the V4
electrode position
C6 Violet V6 Violet
On the left midaxillary line,
horizontal with the V4
electrode position
Emplacing of chest electrodes
In general, 6 electrodes are placed on chest based on the intervals of ribs.
Taking the American standard as an example, the emplacing positions of
electrodes V1-V6 are shown in the figure below:
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