Bosch PPW 2250 Instructions For Use Manual page 8

en
The measurement can now be read off.
If the setting is in kg, the scales display the
weight in 100 g steps.
The scales automatically switch off after
the measuring process.
Measuring weight as well as
body fat and body water
content, muscle and bone
mass
Fig. 5
S
Press the + or button 2. The last set
memory location is displayed.
S
Select the programmed personal memory
location with the + or button 2. Press the
centre of the weighing area to activate the
measuring process.
The set personal data lights up in succession
on the display, then the scales switch to
0.
kg (lb or st).
0
Note: Stand on the scales with bare feet only.
S
Step onto the scales and stand still until the
bar graph on the display 1 stops moving.
Distribute your weight evenly on both legs.
Important: Your feet, calves and thighs must
not touch, otherwise the measurement will be
incorrect.
The values can now be read off. The following
values are indicated sequentially:
- Weight in kg (lb or st)
- Body fat content as %
- Body water content as %
- Bone mass in kg (lb or st)
- Muscle mass in kg (lb or st)
The scales automatically switch off at the end of
the measuring process.
8
General
The body fat and water measurements are
influenced by the amount of water in the body.
The amount of water varies, e.g. according to
the time of day, demands on the body, baths or
showers, menstruation, eating and drinking.
Even illnesses or medication may influence the
result.
Note: The measurement results are not reliable
for children under 10 years of age.
How does body fat
measurement function
Body fat is measured according to the BIA
principle (bioelectrical impedance analysis).
The appliance transmits a weak, harmless
electrical signal through the body.
The resistance (impedance), i.e. the signal
which the body resists, is measured.
The resistance is affected by the composition of
the human 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 taking into account the
data (size, age, sex) which was input into the
scales. The body fat content varies greatly from
person to person. Therefore, only approximate
values are indicated in the following table.
Women
Age
too low
Age
too low
Sources: BMI guidelines of the NIH/WHO. Quoted from
Gallagher, et al. at the NY Obesity Research Center.
ideal high
ideal high
Men