Operation Preparations
4-3
cover.
Please place the folded paper into the recorder carefully to avoid the damage of the fringe of the
record paper.
4.3 Patient Cable Connection
Figure 4-2 Patient Cable
Patient cables include two parts:
Main cables which are connected to the electrocardiograph and the lead wires which are connected to
the patient; Lead wires include 6 chest lead wires and 4 limbs lead wires, the user can distinguish the
chest leads and limb leads from the color of the lead wires and the label on the connector.
Patient Cable Connection:
Plug the patient cable into the cable interface on the right side of the electrocardiograph; rotate the
screws at the two sides of the plug.
4.4 Electrodes Connection
Please ensure that all the electrodes are connected to the correct positions on the patient body;
avoid the contact of electrodes (include neutral electrodes) and patients to any other conductive
parts or the ground.
The contact resistance between the patient and electrodes exerts great influence on the quality of the ECG;
therefore in the connection of electrodes, the contact resistance should be minimized as possible to obtain
better ECG.