Schiller CARDIOVIT CS-104, Руководство пользователя

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Page 61
Recording an ECG 4
User Guide Electrode Check 4.4
A
rt.
no.
:
2.
511
335
Rev.
a
CARDIOVIT CS-104
4.4 Electrode Check
In the hookup screen, the following is checked and indicated on the bottom of the
screen:
• Excessive noise (signal noise too high) due to poor electrode contact or mains in-
terferences (mains filter not activated)
• Electrodes reversed
• Electrodes off or high resistance
If F (LL) or N is not connected or has come off, the electrode resistance cannot be
measured and all leads are marked red.
Check that the electrodes are properly attached,
the ECG cable is connected and the correct
powerline filter is configured.
Some of the electrodes seem to be interchanged.
Please check that all electrodes are placed at the
correct position.
Poor signal quality Lead reversal
One or more of the electrodes are not properly
connected. Please check that all electrodes are
placed at the correct position.
Electrode Off
4.4.1 Quality Indication on the ECG Trace
The signal quality is also indicated by the colour of the ECG trace as follows:
Green Trace: Good signal
Yellow Trace: Poor signal quality - you should be able to make a recording but
the indicated lead(s) have an electrode that is higher resistance
than is ideal.
Red trace: Bad signal quality and the lead should be checked.
4.4.2 Electrode Placement
An ECG recordin
ECG quality goo
Mid - clavicular line in the fifth
intercostal space
• Click anywhere in the screen to rotate and move the model for required view.
• Click on any electrode to zoom in on the electrode placement.
• When zoomed, electrode placement is given below the graphic.
• Click anywhere in the main ECG trace to zoom out again.
The colours given here are the default trace colours but these colours can be
redefined for user preference if required (
see para. 11.2.10, Recorder View, page
121) .