SE-1201 Electrocardiograph User Manual Operation Preparations
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3.1.2 Connecting the Patient Cable to Electrodes
Align all lead wires of the patient cable to avoid twisting, and connect the lead wires to the
reusable electrodes or the alligator clips. Firmly attach them.
The identifiers and color codes of electrode connectors used comply with IEC/EN requirements.
In order to avoid incorrect connection, the identifiers and color codes are specified in Table 3-1.
Moreover the equivalent codes according to American requirements are given in Table 3-1 too.
Table 3-1 Electrode Connectors and Their Identifiers and Color Codes
European American
Electrode Connectors Identifier Color Code Identifier Color Code
Right arm/Right deltoid R Red RA White
Left arm/Left deltoid L Yellow LA Black
Right leg/Upper leg as
close to torso as possible
N or RF Black RL Green
Left leg/Upper leg as
close to torso as possible
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
3.2 Preparing the Patient
3.2.1 Instructing the Patient
Before attaching the electrodes, greet the patient and explain the procedure. Explaining the
procedure decreases the patient’s anxiety. Reassure the patient that the procedure is painless.
Privacy is important for relaxation. When possible, prepare the patient in a quiet room or area
where others can’t see the patient. Make sure that the patient is comfortable. The more relaxed
the patient is, the less the ECG will be affected by noise.
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