General Information - Bosch PPW3320 Mode D'emploi

General information

The measurements are only an indication of
long-term changes. They are no substitute
for medical supervision or consultation.
For more detailed information about the
meaning of body fat / body water content
and the ideal values for you, please consult
your GP.
Tip: To obtain comparable measurements,
weigh yourself every day at the same time
and under the same conditions (recommen-
dation: three hours after eating or sport).
Note: The measurement results are not
reliable for children under 10 years of age.
What does BMI mean?
The Body Mass Index (BMI) is used to
assess a person's weight. It indicates
whether a person is of normal weight, over-
weight or underweight.
The Body Mass Index (BMI) is the quotient
of your weight (kg) and the square of your
height (m). The unit of the BMI is kg/m².
Meaning of BMI
(according to WHO)
BMI value Meaning
Below 19 underweight
19 to 25 normal weight
25 to 30 overweight
30 to 35 obesity degree 1
35 to 40 obesity degree 2
Over 40 obesity degree 3
Body Mass Index is only a rough indicator.
How do the scales measure
body fat?
Body fat is measured according to the
BIA principle (bioelectrical impedance
analysis). The appliance transmits a
weak, harmless electrical signal through
the body and measures its resistance
(impedance) to this signal. The resistance
is affected by the composition of the body.
Muscles and organs contain water and are
therefore good conductors. Fat resists the
signal and is therefore a poor conductor.
The body fat percentage is calculated from
this measured resistance, based on the
data (height, age, sex) input into the scales.
The body fat content varies greatly from
person to person. Therefore only guide
values are indicated in the following table.
Women
Age too low
10-19
20-39
40-59
60-79
0% 10%
Men
Age too low
10-19
20-39
40-59
60-79
0% 10%
Body water values
The body fat and water measurements
are influenced by the amount of water in
the body. The amount of water varies, e.g.
depending on the time of day, physical
demands, baths or showers, menstruation
and intake of food / drink. Illnesses or medi-
cation can also affect measurement.
The following guide values, according to
WHO, apply to persons who are of normal
weight:
Women
Men
Cleaning
Never immerse the scales in water. Do not
steam-clean the appliance.
■ Wipe the scales with a damp cloth; do not
use scouring agents.
■ Clean the glass surface with a standard
glass cleaner.
ideal too high
20% 30% 40%
ideal too high
20% 30% 40%
50-55%
60-65%
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