12
An irregular heartbeat is present when the heart rhythm deviates by
more than 25 % from the average heart rhythm. The contraction of the
heart muscle is stimulated by electrical signals. A disorder of these
electrical signals is called an arrhythmia. This may be due to a genetic
predisposition, stress, age, lack of sleep, exhaustion or similar factors. A
doctor can establish whether an irregular heartbeat is the result of an
arrhythmia.
Heart rhythm disorders are disturbances of the normal rate or rhythm of the
heartbeat. Distinction should be made between mild and severe heart rhythm
disorders. This can only be determined by a special examination carried out by a
doctor.
Power supply (batteries, power supply unit)
■ Observe the polarity labels plus (+) and minus (-).
■ Use only high-quality batteries (see specification in Chapter 13 ‘Technical
data’). If you use low-quality batteries, we can no longer guarantee the
specified number of measurements.
■ Never mix old and new batteries or batteries from different manufacturers.
■ Remove empty batteries immediately.
■ Replace batteries if the battery symbol remains illuminated.
■ Always replace all the batteries at the same time.
■ If the monitor remains unused for a longer period of time, batteries should be
removed to prevent possible leakage.
■ If you use the monitor with the power supply unit, position the monitor so
that you can disconnect the power supply at any time.
IFU_Veroval_dc_SK2_0307661_EN_TR_AE_CN_200918.indd 12 17.10.18 18:03
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