EDAN iSE-301 User Manual - page 21
SE-301 Series Electrocardiograph User Manual Operation Preparations
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Limb Electrode
The identifiers and color codes of electrodes used comply with IEC/EN requirements. In order
to avoid incorrect connections, the electrode identifiers and color codes are specified in Table
4-1. Moreover the equivalent codes according to American requirements are given in Table 4-1
too.
Table 3–1 Electrodes and Their identifiers and color codes
European
American
Electrodes
Identifier
Color code
Identifier
Color code
Right arm
R
Red
RA
White
Left arm
L
Yellow
LA
Black
Right leg
N or RF
Black
RL
Green
Left leg
F
Green
LL
Red
Chest 1
C1
White/red
V1
Brown/red
Chest 2
C2
White/yellow
V2
Brown/yellow
Chest 3
C3
White/green
V3
Brown/green
Chest 4
C4
White/brown
V4
Brown/blue
Chest 5
C5
White/black
V5
Brown/orange
Chest 6
C6
White/violet
V6
Brown/violet
As the following figure shows, the positions of chest electrodes on the body surface are
C1: Fourth intercostal space at the right border of the sternum
C2: Fourth intercostal space at the left border of the sternum
C3: Fifth rib between C2 and C4
C4: Fifth intercostal space on the left midclavicular line
C5: Left anterior axillary line at the horizontal level of C4
C6: Left midaxillary line at the horizontal level of C4
Reed
Electrode
Clamp