User's Manual

8 - 3
on muscles of the thorax, may lead to erroneous arrhythmia alarms due to excessive muscle
movement.
8.4.3 Lead Wire Color Code
The following table lists the color coding of leadwires for AHA standards:
8.4.4 ECG Electrode Placements
In this section, electrode placement is illustrated using the AHA naming convention.
8.4.4.1 3-leadwire Electrode Placement
The following is the electrode configuration when a 3-leadwire cable is
used:
■ RA placement: directly below the clavicle and near the right
shoulder.
■ LA placement: directly below the clavicle and near the left
shoulder.
■ LL placement: on the left lower abdomen.
8.4.4.2 5-leadwire and 6-leadwire Electrode Placement
The following is the electrode configuration for a 5-leadwires cables:
■ RA placement: directly below the clavicle and near the right
shoulder.
■ LA placement: directly below the clavicle and near the left
shoulder.
■ RL placement: on the right lower abdomen.
■ LL placement: on the left lower abdomen.
■ V placement: on the chest in any of the V1 to V6 positions.
For 6-leadwire placement, you can use the position for the 5 -
leadwire placement but with two chest leads. The two chest leads (Va
and Vb) can be positioned at any two of the V1 to V6 positions. For
Lead
Label Color
Right arm RA White
Left arm LA Black
Right leg (neutral) RL Green
Left leg LL Red
Chest 1 V1 Brown/Red
Chest 2 V2 Brown/Yellow
Chest 3 V3 Brown/Green
Chest 4 V4 Brown/Blue
Chest 5 V5 Brown/Orange
Chest 6 V6 Brown/Violet
RA
LA
LL
RA
V
RL
LA
LL