Omron BF511 User Manual
BF511
Body Composition Monitor
• Instruction Manual
• Mode d’emploi
• Gebrauchsanweisung
• Manuale di istruzioni
• Manual de instrucciones
• Gebruiksaanwijzing
•
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Thank you for purchasing the OMRON Body Composition Monitor.
Before using this unit for the first time, please be sure to read this Instruction Manual
carefully and use the unit safely and properly.
Please keep this Instruction Manual at hand all the time for future reference.
IM-HBF-511-E-04-07/2015
5322544-0D
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Before using the unit
Dear customer,
Thank you for purchasing this high-quality OMRON Body Composition Monitor. With this medical device you will
be able to precisely measure the following body composition parameters and immediately interpret the results:
• Body Fat (in %)
• Visceral Fat (up to 30 levels)
• Body Mass Index (BMI)
• Skeletal Muscle (in %)
In addition, the calculation of the Resting Metabolism Rate (in kcal) determines the daily calorie requirement and
can act as a reference for weight reduction programme.
The unique OMRON 8-sensor technology using both hands and feet provides one of the most accurate methods of
entire body measurements.
The OMRON Body Composition Monitor BF511 is suitable for children from 6 years onwards and adults and can
weigh persons up to 150 kg.
Please read this inst ruction manual carefully before use and for further information on the individual functions.
Please keep this manual for future reference. Do not use this unit for purposes other than described in this manual.
BF511
Body Composition Monitor
Contents
Before using the unit
Notes on Safety......................................................................................................2
Information on Body Composition.......................................................................3
Operating instructions
1. Know Your Unit...............................................................................................5
2. Inserting and Replacing the Batteries ..........................................................5
3. Setting and Storing Personal Data................................................................6
4. Taking a Measurement ...................................................................................8
5. Measuring Weight Only................................................................................12
Care and maintenance
6. Error Displays ...............................................................................................13
7. Troubleshooting............................................................................................13
8. How to Take Care of and Store the Unit......................................................14
9. Technical Data...............................................................................................15
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Notes on Safety
Symbols and definitions are as follows:
Danger:
Warning:
Caution:
Improper use may cause danger resulting in death or serious injury.
Improper use may result in possible death or serious injury.
Improper use may result in injury or property damage.
Danger:
• Never use this unit in combination with medical
electronic devices such as:
(1) Medical electronic implants such as
pacemakers.
(2) Electronic life support systems such as
an artificial heart/lung.
(3) Portable electronic medical devices such as an
electrocardiograph.
This unit could cause these devices to malfunction,
posing a considerable health risk to users of these
devices.
Warning:
• Never start weight reduction or exercise therapy
without the instructions of a doctor or specialist.
• Do not use the unit on slippery surfaces, such as a
wet floor.
• Keep the unit out of the reach of young children.
Contains small parts that may cause a choking
hazard if swallowed by infants.
• The cord of the display may cause accidental
strangulation in infants.
• Do not jump onto the unit, or hop up and down on
the unit.
• Do not use this unit when your body and/or feet are
wet, such as after taking a bath.
• Stand on the main unit bare-footed. Attempting to
stand on it with socks on may cause you to slip and
result in injury.
• Do not step on the edge or display area of the main
unit.
• People with disabilities, or who are physically frail,
should always be assisted by another person when
using this unit. Use a handrail or so when stepping
on the unit.
• If battery fluid should get in your eyes, immediately
rinse with plenty of clean water. Consult a doctor
immediately.
• If battery fluid should get on your skin or clothing,
immediately rinse with plenty of clean water.
• Remove the batteries from this unit when you are
not going to use it for a long period of time
(approximately three months or more).
• Do not use different types of batteries together.
• Do not use new and worn batteries together.
• Remove the display unit from main unit before
stepping on the unit. If you try to remove the display
unit while stepping on to the unit, you may lose your
balance and fall.
General Advice:
• Do not place this unit on a cushioned floor surface
such as on a carpet or a mat. Correct measurement
may not be possible.
• Do not place this unit in highly humid environments
and protect it from splashing water.
• Do not place this unit near heat sources or below
air conditioners and avoid direct sunlight.
• Do not use this unit for purposes other than
described in this manual.
• Do not pull the cord of the display unit attached to
the main unit with force.
• As this unit is a precision instrument, do not drop,
vibrate, or apply strong shock.
• Disposal of used batteries should be carried out in
accordance with the national regulations for the
disposal of batteries.
• Do not wash the display unit or the main unit with
water.
• Do not wipe the unit with benzene, gasoline, paint
thinner, alcohol, or other volatile solvents.
• Do not place this unit where it will be exposed to
chemicals or corrosive vapors.
Read and follow the “Important information regarding
Electro Magnetic Compatibility (EMC)” in the
Technical Data Section.
Caution:
• Do not disassemble, repair, or remodel the display
unit or the main unit.
• Do not use a cellular phone near the display unit or
the main unit.
• Take care when storing the display unit. Your
fingers may be trapped between the grip and the
main unit if you press it too strongly.
• Do not use batteries not specified for this unit. Do
not insert the batteries with the polarities in the
wrong direction.
• Replace worn batteries with new ones immediately.
• Do not dispose of batteries in fire.
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Information on Body Composition
Principle of body composition calculation
Body fat has low electric conductivity
The BF511 measures the body fat percentage by the Bioelectrical Impedance (BI) method. Muscles, blood vessels
and bones are body tissues with a high water content that conducts electricity easily. Body fat is tissue that has little
electric conductivity. The BF511 sends an extremely weak electrical current of 50 kHz and less than 500 μA through
your body to determine the amount of fat tissue. This weak electrical current is not felt while operating the BF511.
In order for the scale to determine body composition, it uses the electrical impedance, along with your height,
weight, age and gender information to generate results based on OMRON’s data of body composition.
Measures the whole body to avoid the influence of fluctuations
During the course of a day, the amount of water in the body tends to gradually shift to the lower limbs. This is why
there is a tendency for the legs and ankles to swell in the evening or at night. The ratio of water in the upper body
and lower body is different in the morning and evening, and this means that the electrical impedance of the body
also varies. Since the BF511 uses electrodes for both hands and feet to take measurements, it can reduce the
influence of these fluctuations on measurement results.
Recommended measurement times
Understanding the normal changes in your body fat percentage can help you in preventing or reducing obesity.
Being aware of the times when the body fat percentages shift within your own daily schedule will assist you in
obtaining an accurate trending of your body fat. It is recommended to use this unit in the same environment and
daily circumstances. (See chart)
Daily activities
Waking up
Recommended time
Breakfast
2 hours
After waking up
Recommended time
Lunch
2 hours
Recommended time
Taking a bath or
eating dinner
2 hours
Recommended time
Going to bed
Before lunch and about 2 hours or
more after breakfast
In the afternoon about 2 hours or
more after lunch and before taking
a bath or eating dinner
Avoid measurement immediately
after eating or bathing.
Before going to bed and about 2
hours or more after dinner or bath
Avoid Taking Measurements Under the Following Conditions:
- Immediately after vigorous exercise, after a bath or sauna.
- After drinking alcohol or a large amount of water, after a meal (about 2 hours).
If a measurement is taken under these physical conditions, the calculated body composition may differ significantly
from the actual one because the water content in the body is changing.
What is BMI (Body Mass Index)?
BMI uses the following simple formula to indicate the ratio between weight and height of a person.
BMI = weight (kg) / height (m) / height (m)
The OMRON BF511 uses the height information stored in your personal profile number or when entering
information in the Guest Mode to calculate your BMI classification.
If the fat level revealed by BMI is higher than the international standard, there is an increased likelihood of common
diseases. However, not all types of fat can be revealed by BMI.
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Information on Body Composition
Sample Visceral Fat
(MRI image)
Visceral Fat
Subcutaneous Fat
Spine
Sample Subcutaneous Fat
(MRI image)
Visceral Fat
Subcutaneous Fat
Spine
What is Body Fat Percentage?
Body fat percentage refers to the amount of body fat mass in regards to the total body weight expressed as a
percentage.
Body fat percentage (%) = {Body fat mass (kg) / Body weight (kg)} × 100
The device uses BI method to estimate your body fat percentage.
Depending on where fat is distributed in the body, it is classified as visceral fat or subcutaneous fat.
What is Visceral Fat Level?
Visceral fat = fat surrounding internal organs
Too much visceral fat is thought to be closely linked to increased levels of fat in the
bloodstream, which can lead to common diseases such as hyperlipidemia and
diabetes, which impairs the ability of insulin to transfer energy from the bloodstream
and using it in cells. In order to prevent or improve conditions of common diseases,
it is important to try and reduce visceral fat levels to an acceptable level. People
with high visceral fat levels tend to have large stomachs. However, this is not
always the case and high visceral fat levels can lead to metabolically obese.
Metabolically obese (visceral obesity with normal weight) represents fat levels that
are higher than average, even if a person’s weight is at or below the standard for
their height.
What is Subcutaneous Fat?
Subcutaneous fat = fat below the skin
Subcutaneous fat not only accumulates around the stomach but also around the
upper arms, hips and thighs, and can cause a distortion of the body's proportions.
Although not directly linked to increased risk of disease, it is thought to increase
pressure on the heart and other complications. Subcutaneous fat is not displayed in
this unit, but is included in the body fat percentage.
What is Skeletal Muscle?
Muscle is divided into two types, muscle in internal organs, such as the heart, and skeletal muscle attached to
bones that is used to move the body. Skeletal muscle can be increased through exercise and other activity.
Increasing the ratio of skeletal muscle means that body can burn energy more easily, which means that it is less
likely to turn to fat, and makes it easier to lead an energetic lifestyle.
What is Resting Metabolism?
Regardless of your activity level, a minimum level of caloric intake is required to sustain the body’s
everyday functions. Known as the resting metabolism, this indicates how many calories you need to
ingest in order to provide enough energy for your body to function.
The reason calculated results may differ from actual body fat percentage
The body fat percentage measured by this unit may significantly differ from the actual body fat percentage in
the following situations:
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Elderly people (over 81 years old) / People with a fever / Body builders or highly trained athletes / Patients
undergoing dialysis / Patients with osteoporosis who have very low bone density / Pregnant women / People
with swelling
These differences may be related to changing ratios of body fluid and/or body composition.
Operating instructions
1. Know Your Unit
Display Unit
Grip Electrodes
Display
Personal Profile
Number Button
Main Unit (Measurement Platform)
Personal Profile
Number Button
Cord
Buttons
Down/MEMORY Button
WEIGHT/BMI Button
VISCERAL FAT Button
Display Unit Holder
Foot Electrodes
2. Inserting and Replacing the Batteries
1. Open the battery cover on the back of
the main unit.
Press the tab of the battery cover to
1)
release it.
2) Pull it up as shown.
Tab
2. Install the batteries in correct polarity
as marked inside the battery
compartment.
3. Close the battery cover.
Battery Life and Replacement
When the battery low indicator ( ) appears,
replace all four batteries with new ones.
Items stored in memory are retained even if the
batteries are removed.
• Replace the batteries after turning off the power.
• Disposal of used batteries should be carried out
in accordance with the national regulations for
the disposal of batteries.
• Four AA batteries will last approximately 1 year
(when measurements are made four times a
day).
• Because the supplied batteries are for trial use
only, they may have a shorter life.
SET Button
Up/GUEST Button
Resting Metabolism Button
BODY FAT/MUSCLE Button
Front View
Power Switch
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