Beurer BF 66: Dear Customer,

1 Included in delivery

• Diagnostic scale BF66

• 3 x 1.5 V, type AAA (LR03), microlight batteries

• These operating instructions

2 Signs and symbols

The following symbols appear in these instructions.

Warning

Warning instruction indicating a risk of injury or damage to health.

Important

Safety note indicating possible damage to the device/accessory.

Note

Note on important information.

3 Device description

Overview

1 Electrodes made from

conductive rubber

2 Display

3 Function and

setting buttons

Function buttons

1

Weight

2

Body fat

3

Body water

4

Muscle percentage

5

Bone mass

6

Basal metabolic rate BMR

7

Active metabolic rate AMR

Setting buttons

8

T

Down

9

S /

Up / User

10 set Confirm setting

16

4 Notes

Safety notes

• The scales must not be used by persons with medical implants (e.g. heart pacemakers)

Otherwise their function could be impaired.

• Do not use during pregnancy. Measurements may be inaccurate due to amniotic fluid.

• Do not stand on the outer edge to one side of the scale otherwise it may tip!

• Keep children away from packaging materials (risk of suffocation).

Notes on handling batteries

• Swallowing batteries can be extremely dangerous. Keep the batteries and scale out of

the reach of small children. Should a child swallow a battery, seek medical assistance

immediately.

• Replace weak batteries before they discharge completely.

• Batteries must not be recharged, taken apart, thrown into an open fire or short circuited.

• Always replace all batteries at the same time and use batteries of the same type.

• Leaking batteries may damage the device. If you do not intend to use the scale for lon-

ger periods, remove the batteries from the battery compartment.

• If a battery has leaked, put on protective gloves and clean the battery compartment with

a dry cloth.

• Batteries can contain toxins that are harmful to health and the environment. Always

dispose of batteries in accordance with applicable legal regulations. Do not dispose of

batteries with the normal household waste.

General notes

• The unit is for personal use only and is not intended for medical or commercial applica-

tions.

• Please note that technically related measuring tolerances are possible, as the scale is

not calibrated for professional medical applications.

• The capacity of the scale is 150 kg (330 lb, 24 St). For weight measurement and bone

mass measurement, the results are shown in 100 g increments (0.2 lb, 1/4 St).

• The measuring results of the body fat, body water and muscle percentage are shown in

0.1% increments.

• On delivery, the scale is set to "cm" and "kg". At the back of the scales is a switch to

change between "inches", "pounds" and "stones".

• Place the scale on a firm level floor; a firm floor covering is required for correct meas-

urement.

• The scale should be cleaned occasionally. Dirt and dust has a tendency to collect on

the rubber electrodes. Always stand on the scale barefoot or wearing socks as the rub-

ber surfaces will quickly become dirty if you wear shoes. Use a damp cloth to clean the

scale. Do not use abrasive detergents and never immerse the scale in water.

• Protect the scale against hard knocks, moisture, dust, chemicals, major temperature fluctua-

tions and heat sources which are too close (stoves, heating radiators).

• Repairs may only be carried out by Beurer customer service or authorised dealers. Be-

fore submitting any complaint, first check the batteries and replace them if necessary.

• Should you have any questions concerning the use of our scale, please contact your

dealer or customer service.

• All scales comply with EC Directive 2004/108/EC. Should you have any questions con-

cerning the use of our scale, please contact your dealer or customer service.

17

5 Information

The measuring principle

This scale operates according to the B.I.A. principle (bioelectric impedance analysis). This

enables the measurement of physical relationships within seconds by means of an unde-

tectable, completely harmless electric current. The body fat percentage and other physical

relationships in the body can be determined by measuring the electrical resistance (imped-

ance) and calculating constants and individual parameters such as age, height, gender and

degree of activity.

Muscle tissue and water have good electrical conductivity, and therefore lower resistance.

Bones and fatty tissue, on the other hand, have low conductivity as fat cells and bones

conduct hardly any current as a result of their very high resistance.

Please be aware that values obtained from the diagnostic scale represent only an ap-

proximation of actual analytical medical data. Only a specialist physician can accurately

determine body fat, body water, muscle percentage and bone structure using medical pro-

cedures (e.g. computed tomography).

General tips

• If possible, always weigh yourself at the same time of day (preferably in the morning),

after using the toilet, on an empty stomach and unclothed, in order to achieve compara-

ble results.

• Important for the measurement: only measure body fat when barefoot and with the soles

of the feet slightly moist. Completely dry soles can result in unsatisfactory measure-

ments due to inadequate conductivity.

• Stand still and upright during the measurement.

• Wait a few hours after unaccustomed physical activity.

• Wait approx. 15 minutes after getting up in the morning to allow the water in the body to

distribute.

• Remember that only long-term trends are important. Short-term changes in weight

within a few days are usually caused by a loss of fluid. Body water plays an important

role towards our general wellbeing.

Limitations

When measuring body fat and other values, deviating and implausible results may occur in:

• children under approx. 10 years,

• competitive athletes and body builders,

• pregnant women,

• persons with fever, undergoing dialysis treatment or with symptoms of edema or osteo-

porosis,

• persons taking cardiovascular medication (affecting the heart and vascular system),

• persons taking vascular dilating or vascular constricting medication,

• persons with considerable anatomic deviations of the legs in relation to total body size

(length of the legs considerably shortened or lengthened).

18

6 Batteries

Remove the batteries from the protective packaging and insert with the correct polarity.

See the diagram inside the battery compartment. When the batteries are inserted, the sca-

le switches on automatically in set-up mode (see Point 7). The date display flashes. If the

scale fails to operate, remove the batteries completely and reinsert them.

Your scale is fitted with a "change battery" indicator. If the scale is operating with a battery

which is too weak, "Lo" appears on the display and the scale will switch off automatically. In this

case, the batteries must be replaced (3 x 1.5 V, AAA (LR03), microlight).

7 Settings

Enter your personal information before using the scale. If no buttons are pressed for 90 se-

conds during the set-up procedure, the scale switches off and any information previously

entered is lost.

Setting the date, time and measuring unit

Press the [set] button when the display is switched off. The [set] button lights up and the date

indicator flashes on the display. Set the date, time and measuring unit (KG, LB, ST) one after

the other by pressing the S or T buttons.

• Modifying values: Press S or T or press and hold for more rapid progress.

• Confirming entries: Press the [set] button.

After your entries are made, "End" appears on the display and the information is saved.

Setting user data

You must enter personal user parameters in order to measure your body fat percentage and

other physical data.

The scale has 10 memory positions in which you and other members of your family can save

and retrieve personal settings.

• Switch on the display by tapping the scale briefly, forcefully and in an easily audible

manner.

• Wait until the display shows "0.0".

• Press the [set] button to start changing the settings. The first memory position flashes

on the display.

• Now you can enter the following settings:

User data Parameters

Memory position 1 to 10

Body size 100 to 220 cm (3' 3" to 7' 3")

Age 10 to 100 years

Sex

male

, female

Degree of activity 1 to 5

• Modifying values: Press S or T or press and hold for more rapid progress.

• Confirming entries: Press the [set] button.

The saved values are then displayed one after the other. The scale is now ready for measure-

ment. The scale switches off automatically if no other actions are performed.

19

Degrees of activity

Selection of the degree of activity must refer to the medium and long term.

Degree of

Physical activity

activity

1 None.

2 Low: A small amount of light physical effort (e.g. short walks, light garden

work, gymnastic exercises).

3 Medium: Physical effort for 30 minutes at least 2 to 4 times a week.

4 High: Physical effort for 30 minutes at least 4 to 6 times a week.

5 Very high: Intensive physical effort, intensive training or hard physical work for

at least one hour daily.

After all parameters have been entered, you can now measure your weight, body fat and the

other data.

8 Operation

Taking measurements

• Select the desired function and activate the scale as follows:

Function Activation

Press the

button or tap the scale briefly, forcefully and in an easily audible man-

Weight only

ner using your foot

Complete

Press the S

/ button (or or tap the scale briefly, forcefully and in an easily audible

analysis

manner using your foot and the press the S

/ button)

Target ana-

Press the function button

lysis

The display switches on and the date and time appear.

• Wait until "0.0 KG" appears on the display.

• When using the analysis functions, press the S /

button to select the user.

• Now step barefoot onto the scale. Stand still with your weight distributed evenly on both

legs. The scale will start measuring your weight immediately and a short time later will

display your weight.

Important:

When activating the analysis functions, make sure there is no contact between

your feet, legs, calves or thighs. Otherwise the measurement will not be per-

formed correctly.

• When you step off the scale, the scale will switch off after a few seconds.

20

Results display

"Weight only" function

The "Weight only" function only displays the measured weight

(the last weight measured, trend displays and interpretations

are not displayed).

Analysis functions "Complete analysis and target analysis"

The analysis functions display more detailed results:

1 Current measurement

2 Last measurement

2

3

3 Average value of the last

1

5 measurements

4 Interpretation: comparison with table values

4

The "Complete analysis" function displays the results automatically in

Complete analysis

function

sequence (one after the other), the illuminated function key indicates

the measured variable:

1

Weight KG, LB or ST

2

Body fat %

3

Body water %

4

Muscle percentage %

5

Bone mass KG, LB or ST

6

Basal metabolic rate

Kcal

BMR

7

Active metabolic rate

Kcal

AMR

Press any function key to display the results more quickly or individually.

Target analysis

If you pressed one of the function buttons to start

function

the measurement for a "Target analysis", only the weight and the se-

lected result are displayed.

In this case, the results are not displayed automatically in sequence.

However, you can also press one of the other function keys to retrieve

these results.

21

Memory function

• A maximum of 10 sets of results are saved automatically in the measured value memory.

• Incorrect measurements resulting in "Err" are not saved.

• Weight measurements (without analysis measurement) are not saved in the memory.

Retrieving measured values from the memory

The last 10 measurements can be retrieved.

• Switch on the scale by tapping the scale briefly, forcefully and in an easily audible manner.

• If necessary, press the

S button several times to select the memory position where your

personal user data is saved.

• When "0.0" appears, press the function buttons

to retrieve the

last measured value for this variable.

• "End" appears on the display if a value has not been saved.

• Press the relevant function key repeatedly to display the measured values one after the

other. The date indicates when the measurement was taken. If several measurements

were saved on one day, the value saved in the last memory position is displayed first.

• "End" appears after the last measured value is displayed.

• You can view any other measured variable together with stored related values by press-

ing the relevant function button

.

• If no buttons are pressed for a short time, "0.0" appears on the display and the scale is

ready for measurement.

Important:

For bone mass, basal metabolic rate (BMR) and active metabolic rate (AMR), on-

ly the last measured value is saved because these values hardly ever change.

9 Evaluation of results

Trend display

This scale has a trend display, which compares the current measured value with the average

calculated from the last 5 measurements.

Display Meaning

S

Current value is higher than the average of the last 5 measurements

T

Current value is lower than the average of the last 5 measurements

S T

Current value is the same as the average of the last 5 measurements

Important:

Note that trends are only displayed for body weight, body fat, body water and

muscle proportion.

Requirement: at least 5 measured values must be saved.

22

Interpretation

The values for body weight, body fat, body water and

1

3

muscle percentage appear in a graphic display, the

bar indicates the interpretation.

2

• 1 - Values low: Bar positioned on the left (-).

• 2 - Values normal: Bar positioned in the centre (see illustration).

• 3 - Values high: Bar positioned on the right (+).

Weight

Your weight is compared in the BMI (Body Mass Index). The following formula calculates your

weight:

BMI = weight in kg / (body size in m)² .

Underweight Normal weight Overweight

< 20 20 - 25 > 25

If your BMI is greater than 25, an symbol appears next to the interpretation bar.

Tip: Reassess your eating habits and change your diet.

Remember that the BMI interpretation always rates extremely muscular bodies

(such as bodybuilders) as overweight because the BMI formula does not take in-

to account the extremely high muscle mass.

Body fat percentage

The following body fat percentages are guide values (contact your physician for further information).

Man

Woman

Age low normal high very high

Age low normal high very high

10-14 <11 11-16 16.1-21 >21.1

10-14 <16 16-21 21.1-26 >26.1

15-19 <12 12-17 17.1-22 >22.1

15-19 <17 17-22 22.1-27 >27.1

20-29 <13 13-18 18.1-23 >23.1

20-29 <18 18-23 23.1-28 >28.1

30-39 <14 14-19 19.1-24 >24.1

30-39 <19 19-24 24.1-29 >29.1

40-49 <15 15-20 20.1-25 >25.1

40-49 <20 20-25 25.1-30 >30.1

50-59 <16 16-21 21.1-26 >26.1

50-59 <21 21-26 26.1-31 >31.1

60-69 <17 17-22 22.1-27 >27.1

60-69 <22 22-27 27.1-32 >32.1

70-100 <18 18-23 23.1-28 >28.1

70-100 <23 23-28 28.1-33 >33.1

A lower value is often found in athletes. Depending on the type of sports, training intensity and

physical constitution, values may result which are below the recommended values stated. It

should, however, be noted that there could be a danger to health in the case of extremely low

values.

23

Body water percentage

The body water percentage is normally within the following ranges:

Man

Woman

Age poor good very

Age poor good very

good

good

10-100

<50 50-65 >65

10-100

<45 45-60 >60

Body fat contains relatively little water. Therefore persons with a high body fat percentage

have body water percentages below the recommended values. With endurance athletes, how-

ever, the recommended values could be exceeded due to low fat percentages and high muscle

percentage.

This scale is unsuitable for measuring body water in order to draw medical conclusions con-

cerning age-related water retention, for example. If necessary ask your physician. Basically, a

high body water percentage should be the aim.

Important:

If your body water proportion is rated as "poor", an symbol appears next to the in-

terpretation bar. Tip: Increase your daily water intake.

Muscle percentage

The muscle percentage is normally within the following ranges:

Man

Woman

Age low normal high

Age low normal high

10-14 <44 44-57 >57

10-14 <36 36-43 >43

15-19 <43 43-56 >56

15-19 <35 35-41 >41

20-29 <42 42-54 >54

20-29 <34 34-39 >39

30-39 <41 41-52 >52

30-39 <33 33-38 >38

40-49 <40 40-50 >50

40-49 <31 31-36 >36

50-59 <39 39-48 >48

50-59 <29 29-34 >34

60-69 <38 38-47 >47

60-69 <28 28-33 >33

70-100 <37 37-46 >46

70-100 <27 27-32 >32

Bone mass

Like the rest of our body, our bones are subject to the natural development, degeneration and

ageing processes. Bone mass increases rapidly in childhood and reaches its maximum between

30 and 40 years of age. Bone mass reduces slightly with increasing age. You can reduce this de-

generation somewhat with healthy nutrition (particularly calcium and vitamin D) and regular exer-

cise. With appropriate muscle building, you can also strengthen your bone structure. Note that this

scale will not show you the calcium content of your bones, but will measure the weight of all bone

constituents (organic substances, inorganic substances and water).

Attention:

Please do not confuse bone mass with bone density.

Bone density can be determined only by means of a medical examination (e.g. com-

puter tomography, ultrasound). It is therefore not possible to draw conclusions concern-

ing changes to the bones and bone hardness (e.g. osteoporosis) using this scale.

24

Little influence can be exerted on bone mass, but it will vary slightly within the influencing factors

(weight, height, age, gender). Bone mass trend displays and interpretations are not available and

there are no recognised guidelines or recommendations relating to bone mass measurement.

BMR

The basal metabolic rate (BMR) is the amount of energy required by the body at complete rest

to maintain its basic functions (e.g. while lying in bed for 24 hours). This value largely depends

on the weight, body size and age of the individual and is displayed on the diagnostic scale in

kcal/day units using the scientifically recognised Harris-Benedict formula.

Your body requires this amount of energy in any case and it must be reintroduced into your bo-

dy in the form of nutrition. Failing to supply the body with the necessary amount of calorific en-

ergy can cause serious health problems.

AMR

The active metabolic rate (AMR) is the amount of energy required daily by the body in its active

state. The energy consumption of a human being rises with increasing physical activity and is

measured on the diagnostic scale in relation to the degree of activity entered (1-5).

To maintain your existing weight, the amount of energy used must be reintroduced into the bo-

dy in the form of food and drink. If less energy is introduced than is used over a longer period of

time, your body will obtain the difference largely from the amount of fat stored and your weight

will decrease. If, on the other hand, over a longer period of time more energy is introduced than

the total active metabolic rate (AMR) calculated, your body will be unable to burn off the excess

energy, and the excess will be stored in the body as fat and your weight will increase.

Results in relation to time

Remember that only long-term trends are important. Short-term fluctuations in

weight over a few days are usually the result of a loss of fluid.

The interpretation of the results will depend on changes in your overall weight and body fat, bo-

dy water and muscle percentages, as well as on the period during which these changes take

place. Sudden changes within days must be distinguished from medium term changes (over

weeks) and long term changes (months).

A basic rule is that short term changes in weight almost exclusively represent changes in water

content, whereas medium and long term changes may also involve the fat and muscle percent-

ages.

• If your weight reduces over the short term, but your body fat percentage increases or

remains the same, you have merely lost water – e.g. after a training session, sauna

session or a diet restricted only to rapid weight loss.

• If your weight increases over the medium term and the body fat percentage falls or

stays the same, then you could have built up valuable muscle mass.

• If your weight and body fat percentage fall simultaneously then your diet is working – you are

losing fat mass.

• Ideally you should support your diet with physical activity, fitness or power training. This

way you can increase your muscle percentage over the medium term.

• Body fat, body water or muscle percentages should not be added (certain elements of

muscle tissue also contain body water).

25