4
• Do not consider the pulse frequency readings as reference values when heart
pacemaker is used.
ELECTROMAGNETIC INTERFERENCE
The device contains sensitive electronic components (Microcomputer). There-
fore, avoid strong electrical or electromagnetic fields in the direct vicinity of the
device (e.g. mobile telephones, microwave cookers). These can lead to temporary
impairment of the measuring accuracy.
2 IMPORTANT INFORMATION
ON THE SUBJECT OF BLOOD PRESSURE
AND ITS MEASUREMENT
2.1. CAUSES AFFECTING THE BLOOD PRESSURE LEVEL
The blood pressure level is regulated by a specific region of the brain – vaso-
motor center. The blood pressure change is subject to the heart force and
rate as well as the tone and lumen of blood vessels. Relaxation of the unstri-
ated muscles of the blood vessel walls results in pressure reduction due to the
expansion of the lumen of blood vessels.
The blood pressure level changes periodically during cardiac activity: the maxi-
mum value (systolic blood pressure value) is observed in the period of blood
ejection out of the heart ventricles (systole), the minimum value (diastolic blood
pressure value) is observed at the end of the relaxation period (diastole).
The blood pressure values must lie within normal ranges to prevent critical condi-
tion of health.
2.2. WHICH VALUES ARE NORMAL?
The blood pressure is considered to be elevated, if at rest the diastolic pressure
level is 90 mmHg or above and/or the systolic pressure level is above 140 mmHg.
In this case, please consult your doctor. Maintenance of such pressure levels for a
long period of time pose risk to health.
Should the systolic blood pressure values lie between 140 mmHg and 160 mmHg
and/or the diastolic blood pressure values lie between 90 mmHg and 100 mmHg,
immediately, please consult your doctor Immediately. Furthermore, regular self–
checks will be necessary.
With blood pressure values that are too low, i.e. systolic values under 100 mmHg
and/or diastolic values under 60 mmHg, likewise, please consult your doctor.
Even with normal blood pressure values, a regular self–check with your blood
pressure monitor is recommended. In this way you can timely detect deviations
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