Description Electrode Colour Position
R red right arm
L yellow left arm
F green left leg
N black right leg (neutral)
Important: The cable must be plugged in as shown in figure 3.1 For the correct
positioning you can find a red dot on the plug and on the case,
which belong together.
3.3.5 The Bluetooth-Interface
The Bluetooth Interface of the device is used in connection with the HMS CS for the
management of the device in practices (configure settings and take readings), as
well as optionally for the telemetric transfer of the ECG after each reading.
3.4 Recording process
Two recording options are differentiated, the Loop recording and the Event record-
ing.
3.4.1 Loop (with cable single-use electrodes)
The recording runs continously in a loop, i.e. the memory is overwritten in a
loop-form. If the patient presses the start button the last few minutes before the
activation and some minutes after the activation are recorded for the physician,
which enables documenting of the heart rhythm before pressing the button. The
advantages of this method are, that a ECG documentation is not only possible from
activation onwards, but also beforehand improving ECG quality, which facilitates the
interpretation. A disadvantage is the use of single-use electrodes and the permanent
body contact.
Warning: After the start of operation or upon changing the electrode a waiting period
will occur, which is dependent on the configured loop interval. When pressing the
start button, only that period can be saved, when the recorder is ready. If no full loop
interval has been saved, the missing area will be filled with a "zero line".
3.4.2 Event (with case electrodes)
At this procedure the ECG Signal will be recorded from activation, by pressing the
start button together with the body contact of the case electrodes. The advantage of
this examination method is that it is not loading because no permanent electrodes
are used and the device does not have to be carried on the body permanently. The
disadvantage of this recording method is that the ECG recording only starts after
skin contact and activation, as a result the symptoms leading to this event cannot
be documented. Also the electrocardiogram quality can be strongly impaired by the
absence of permenent electrodes, so that a correct interpretation is made more
difficult.
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