Information; General Tips - Beurer BF 105 Gebrauchsanweisung

IMPORTANT
• The device should be cleaned from time to time. Do not use any abrasive cleaning products and never
submerge the device in water.
• Make sure that no liquids come into contact with the scale. Never submerge the scale in water. Never
rinse it in running water.
• Do not place any objects on the scale when not in use.
• Protect the device from knocks, damp, dust, chemicals, marked temperature fluctuations and nearby
sources of heat (ovens, heaters).
• Do not press the buttons violently or with pointed objects.
• Do not expose the scale to high temperatures or strong electromagnetic fields (e.g. mobile telephones).

4. Information

The measurement principle
This scale works on the principle of B.I.A. (bioelectrical impedance analysis). This involves the calculation of
body content in a matter seconds, using a current that cannot be felt, is completely harmless and does not pose
any risk.
When this measurement of the electrical resistance (impedance) is considered alongside constants and/or indi-
vidual values (age, height, gender, activity level), the body fat percentage and other variables in the body can be
calculated. Muscle tissue and water conduct electricity well and therefore have a lower resistance. In contrast,
bones and fat tissue have low conductivity as the fat cells and bones are barely able to conduct the current due
to very high levels of resistance.
Moreover, this scale uses two different frequencies to be able to determine impedance even better. These dif-
ferent frequencies affect the cell membrane and body water differently. The electrical contact to the body is
also enhanced using 4 hand electrodes and 4 foot electrodes to achieve a higher measurement accuracy and
better analysis. This sensitive analysis technology means readings may change slightly when measurements are
repeated. This is caused by changes during the impedance measurement (e.g. different electrical contact to the
electrodes by the hands and feet, different distribution of water in the body).
Carry out the analysis as follows:
• Upper body: Hold the control unit in your hands and step onto the scale wearing your shoes.
• Lower body: Step onto the scale barefoot. Do not hold the control unit this time (e.g. leave it on the scale).
• Upper body and lower body: Hold the control unit in your hands and step onto the scale barefoot.
If you are holding the control unit in your hands when performing the analysis, the weight of the unit is automati-
cally deducted.
Please note that the values calculated by the diagnostic scale only represent an approximation of the actual
medical analytical values for the body. Only a specialist doctor can precisely establish the body fat, body water,
muscle percentage and bone structure using medical methods (e.g. computer tomography).

General tips

• As far as possible, weigh yourself at the same time every day (ideally in the morning), after having been to the
toilet, on an empty stomach and without clothing, in order to obtain results which can be compared.
• Important point regarding the measurement: the calculation of body fat may only be made when barefoot; the
soles of the feet may be lightly dampened where appropriate.
• Results may be unsatisfactory if the soles of the feet are completely dry or have a large amount of hard skin
since conductivity will be impaired.
• Stand up straight and still whilst weighing yourself.
• Wait a few hours after any physical exertion to which your body is unaccustomed.
• Wait approx. 15 minutes after getting up so that the water stored in your body can disperse.
• Remember that only the long-term trend is important. Short-term changes in weight within a few days are nor-
mally caused by loss of fluids; however, body water plays an important role in terms of well-being.
Limitations
When calculating body fat and the other values, unusual and implausible results may occur in the case of:
• Children under 10 years of age,
• Performance athletes and body-builders,
• Persons with a fever, persons undergoing dialysis, persons with oedema symptoms and persons suffering
from osteoporosis,
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