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Instructions for use
PRIMEDIC
™
Defi-Monitor ECO 1 / DM 1 / DM 3
74
19499 / 05.03
Attention:
If one or several LEDs or the warning buzzer do not function,
the defect has to be eliminated immediately.
4.2 Synchronous and asynchronous
operation
When switching on the
PRIMEDIC
™
Defi-Monitor
the
defibrillator is automatically in asynchronous operation.
Press SYNC (34) to select synchronous operation of the
defibrillator (cardioversion) if required by the emergency
situation.
LED (33) signals the synchronous operation. In addition, the
note "SYNC" is displayed on the ECG monitor.
After a synchronous discharge (cardioversion) the defibrillator
switches back to asynchronous operation.
Note:
During synchronous operation ECG markings are shown on
the monitor. For safe synchronous operation these
cardioversion markers must appear in every QRS complex
with a R-peak. A clear, artefactfree ECG signal with sufficient
amplitude is essential.
If there are no markings shown on the ECG monitor, the
amplitude probably has to be changed by means of SIGNAL
AMPLIFICATION or a lead with improved signal quality has to
be selected.
Note:
Do not use the paddles but the external ECG patient
electrodes for the ECG recording during synchronous
operation. Otherwise artefacts can be caused when moving
the paddles which leads to faulty synchronization.
Note:
The delay time between the recognition of a QRS complex
(synchronous pulse) and energy discharge is less than 60 ms.
Attention:
Before releasing the cardioversion check on the monitor
whether the cardioversion markers are clearly related to the
R-peaks and do not react e. g. to pacemaker pulses or
artefacts.