Body Fat Monitor
Model BF306
• Instruction Manual
• Gebrauchsanweisung
• Gebruiksaanwijzing
• Mode d’emploi
page 2
Seite 9
EN
DE
NL
FR
IT
pagina 16
page 23
• Manuale de instruzione
• Manual de instrucciones
pagina 30
pagína 37
ES
IM-HBF-306-E-04-10/2011
English
2. HOW TO OBTAIN A CORRECT
MEASUREMENT
2.3 Exceptions
In some cases, the measured body fat percentage may differ
too much from the actual body fat percentage. These excep-
tions are the people for who measurements may vary due to
consistently changing amounts of water and tissue density
within their bodies.
The body fat monitor is a monitoring device. It should be used
at a fixed point in time and with a fixed period between two
measurements. For instance: once a week on a Sunday
morning. With this in mind, please find in paragraph 2.1 a
table with recommended times for measurement.
There are conditions that are not suitable for taking a body fat
measurement. There are also some exceptions that are
excluded for taking a body fat measurement. This is explained
in paragraph 2.2 and 2.3. This chapter will end with some
recommendation (paragraph 2.4) before taking a measurement.
2.1 Recommended times for measurement
Children of
growing stage
Elderly people
and women after
menopause
Daily activities
Understanding the
Those having
swelling
Waking up
normal changes in
Recommended time zone
Breakfast
After waking up
your body fat per-
centage can help you
in preventing or
2 hours
reducing obesity.
Before lunch and about 2 hours or
more after breakfast
Recommended time zone
Being aware of the
times when the body
fat percentages shift
within your own
Lunch
2 hours
daily schedule will
assist you in obtain-
ing an accurate trend
of your body fat. It is
recommended to use
this unit in the same
environment and
In the afternoon about 2 hours or
more after lunch and before taking
bath or dinner
Recommended time zone
Patients of
osteoporosis
having very
People with
a fever
Bodybuilders or
professional
athletes
Taking bath and dinner
2 hours
low bone density
Before going to bed and about 2
hours or more after taking a bath
or dinner
Recommended time zone
Going to bed
same daily circum-
stances. (See chart)
2.2 The conditions or circumstances NOT suitable for a
correct measurement
Patients under-
going dialysis
If a measurement is made under the following physical
conditions, the measured body fat percentage may differ
significantly from the actual one because the water content
in the body changes.
Pregnant women
2.4 Recommendations for taking a measurement
If the palms of your hands are dry or the temperature of your
palms or the grip of the electrodes are extremely cool, stable
measurement is impossible, which may lead to display error
indication or inaccurate results.
Please pay special attention in winter because the air is dry
and/or the temperature is low.
Conditions
Actions
Immediately after
vigorous exercise
Immediately after
taking bath or sauna
Hands are dry.
Slightly moisten hands with
a wet towel, then measure.
Warm the grip electrodes by
leaving the unit in a warm
room for approximately ten
minutes.
When you hold the grip
electrodes, they feel cold.
Your body and hands are cold
due to the blood not circulating
well.
Warm your hands by
immersing in warm water
or staying in a warm room.
Start the measurement
again.
After drinking
much alcohol
After taking a large amount
of water or after a meal
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English
3. OPERATION AND USAGE OF THE
OMRON BF306 BODY FAT MONITOR
1
3
4
In this chapter a thorough description will be given about
the usage of the OMRON BF 306 Body Fat Monitor. First a
description of the main unit will be given followed by an
instruction to insert the batteries. Please note that paragraph
3.3, 3.4 and 3.5 are about the setting and taking the
measurement.
2
5
6
9
This chapter will be closed with a paragraph about changing
the values.
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BODY FAT MITOR BF306
3.1. Description of the unit
1
2
Display of height / weight / age mode
Display of the values of body fat percentage / height /
weight / age
2
1
3
4
5
6
Display of ready before and after a measurement
Graphical interpretation of fat% and BMI value
Euro Asia
Low battery display (when this mark flashes, replace
the batteries)
6
7
8
9
Display of BMI values
4
Display of personal memory number
Display of gender
3
5
7
3.2 Battery insertion and replacement
1. While pressing the mark on
1
Grip electrodes
Extremely weak electric current is applied from here
during the measurement
the battery cover on the back of the
unit with your finger, slide off
the cover in the direction of the
arrow.
2
3
4
Display
Displays the set value and the measurement results
2. Insert two AAA batteries with the
polarities in correct alignment,
as indicated in the battery compart-
ment.
O/I button
Turns the power on and off
Start button
Push the button and take the measurement posture,
then the measurement starts
3. Slide and securely close the battery
cover.
5
6
Set button
Stores the memory number (1-9)
and personal data
Battery life and replacement
Up/Down ( ▲ / ▼ ) button
When the battery replacement symbol flashes,
replace both batteries with new ones.
Increases/decreases the values of personal data
including height, weight, age and gender, as well as
the personal memory number.
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Battery cover (rear)
4
English
Disposal of used batteries should be carried out in accordance
with the national regulations for the disposal of batteries.
Now all the set items are stored,
Step 7
is displayed.
As the batteries may leak and damage the main unit, please
note the following points:
Continue with the next paragraph: to carry out the measure-
ment, paragraph 3.4.
• 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).
3.4 To take a measurement
• Replace the worn batteries with new ones immediately.
• Do not use manganese and alkaline batteries together.
• Do not use new and worn batteries together.
Step1: Stand with both feet slightly apart.
Step 2: Hold the grip electrodes.
Wrap your middle finger around the
groove of the handle. Place the palm of
your hand on the top and the bottom
electrodes. Put your thumbs up, resting
on top of the unit.
3.3 Setting the personal data before taking a measurement
Step 1: Push the O/ I button.
All the display segments turn on
Step 2: Push the Set button to enter the
setting mode.
Step 3: Hold your arms straight out, at a
90 degree angle to your body. Do not
move during the measurement.
BODY FAT MONITOR BF306
Step 3: Setting height (range: 100.0 cm
to 199.5 cm).
1. The height value 160.0 cm flashes
Step 4: Confirm the ready to measure
display.
and HEIGHT
is indicated.
The
indicator turns on.
2. Push the ▼/▲ button to set the height
value. The height value increases by
increments of 0.5 cm each time the
Step 5: Push the START button.
The display turns on.
▲ button is pressed or decreases
each time the ▼ button is pressed. By pushing the button for
more than 1 second, the height values change at a faster
rate.
3. Push the Set button to set the height value. The display
changes to the weight setting screen.
Step 6: Immediately after having pushed
the Start button, hold the electrodes
correctly with both hands as shown on
the right. The unit automatically detects
that it is held and starts measuring.
Step 4: Setting weight (range: 10.0 kg to 199.8 kg).
1. The weight value 60 kg flashes and
Step 7:
During measuring, the display shown to
the right turns on and the arrows rotate
from LOW to TOO HIGH.
WEIGHT
is indicated.
2. Push the ▼/▲ button to change the
weight value. The weight value
increments by 0.2 kg each time the
As soon as measurement is finished the
FAT% is displayed on the left display,
while indicating the interpretation of
this value (NORMAL >> TOO HIGH) on
the right display. After approx. 5
seconds, both displays change to BMI
(Body Mass Index).
▲ button is pressed or decreases each time the ▼ button is
pressed. By holding the button for more than 1 second, the
weight values change at a faster rate.
3. Push the Set button to set the weight value. The display
changes to the age setting screen.
Step 5: Setting age (range: 18 to 70 years old).
1. The age value 40 flashes and the
Every 5 seconds, the displays change
from FAT% to BMI and vice-versa.
AGE
is indicated.
2. Push the ▼/▲ button to change the
You can start another measurement
age. The age values change by 1 year.
when the
indicator turns on.
By holding the button for more than
1 second, the age values change at a faster rate.
3. Push the Set button to set the age value. The display
changes to the gender setting screen.
For an explanation how to interpret the
measurement results in detail, please
refer to chapter 4.
BODY FAT MONITOR BF306
Step 6: Setting gender (male/ female).
1. The gender male flashes and
Step 8: Push the O/I button to turn the
power off.
MALE
is indicated.
If you do not push the O/I button, the
unit will turn off automatically,
approximately three minutes after
displaying the measurement results.
2. Push the ▼/▲ button to change the
gender. The display of male or female
flashes alternately.
BODY FAT MONITOR BF306
3. Push the Set button to set the gender.
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English
3.5 Setting and using personal memory number
4. HOW TO INTERPRET MEASURED
RESULTS
The Omron BF 306 body fat monitor has a memory function.
This function enables you to store the data for 9 persons.
4.1 BMI Value
Push the O/ I button
All the display segments turn on
Graphical inter-
pretation of BMI
value (LOW >>
TOO HIGH)
When you want to set the personal memory number and store
personal data:
Select the personal memory number.
1. Push the ▼/▲ button and select a
personal number from 1 to 9.
BODY FAT MONITOR BF306
2. Push the Set button.
The personal number turns on and changes
to height setting mode.
3. Set the personal data - continue with step
3 paragraph 3.3 "Setting personal data".
BMI is an internationally used index to show the body
condition by checking the balance between the height and
the weight.
Taking a measurement by using your personal memory (be
sure the device is on):
It is calculated by the following formula:
BMI = weight / height
2
Search your personal memory number
1. Push the ▼/▲ button to select your memory number
2. Push the Set button.
The memory number is indicated and your personal data is
displayed.
BMI
< 18.5
>18.5 and < 25
> 25 and < 30
> 30
BMI value*
LOW
NORMAL
HIGH
TOO HIGH
3. Carry out the measurement.
* The above mentioned indices refer to the values for obesity proposed
Refer to "To take the measurement” paragraph 3.4
by the WHO (World Health Organization)
3.6 To change any values
4.2 Body fat percentage
Graphical inter-
pretation of
1. Push the Set button to go to the personal data you want
to change.
2. Push the ▼/▲ button to change the setting.
measured FAT%,
based on
Deurenberg’s*
table below
By pushing both the ▼/▲ buttons at the same time, the
current flashing display will reset to the initial value.
How to delete all 9 personal data values from the memory
1. Push the ▲ button and select the memory No. 1.
2. Push the SET button for 2 seconds.
BODY FAT MONITOR BF306
3. All personal data is deleted and all.
4. The display segments turn on.
Displays the body fat mass as the percentage of body weight.
(Same state as when the O/I button is pushed.)
bodyfat%
0%
10%
20%
30%
40%
50%
age
If you leave the set items on the screen without confirma-
tion, in approximately 1 minute the display will change to
the initial values or the to values before setting.
18 – 29
30 – 39
40 – 49
50 – 59
60 – 70
After 1 minute, the unit will automatically turn off.
bodyfat%
If your age, weight, or height has changed, correct the
value accordingly.
0%
10%
20%
30%
40%
50%
age
18 – 29
30 – 39
40 – 49
50 – 59
60 – 70
Obesity judgment Low
High
Normal
Too high
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English
References:
5.2 Explanation of error codes
Error display Cause
Deurenberg* P, Yap M, van Staveren WA.
Body mass index and percent body fat: a meta-analysis
among different ethnic groups.
What to do (the next
button to push)
Electrodes were not Grasp the grips cor-
International Journal of Obesity 1998;22:1164-1171
firmly grasped.
rectly and measure.
(Start button)
WHO
Obesity: Preventing and managing the global epidemic.
Report on a WHO Consultation on Obesity, Geneva, 3-5
June, 1997
Measurement posture Measure without or
grip was not stable.
moving your arms.
(Start button)
WHO/NUT/NCD/98.1, Geneva 1998
Hands are dry.
Slightly moisten
hands with a wet
towel, then measure.
(Start button)
* Paul Deurenberg, PhD
Associate Professor in Nutrition, Wageningen University,
The Netherlands
Visiting Professor University 'Tor Vergata', Rome, Italy
Nutrition Consultant in Singapore
The values of body
fat percentage and
BMI are outside the
measurable range.
Check the set height,
weight, age, and
gender again. (Set
button)
5. TROUBLESHOOTING
5.1 Possible causes of inaccurate measurements.
Abnormal operation Press the O/I button
again and start
Measuring postures that should be avoided
Measurement in the following positions may not provide
accurate measurement.
measurement. If this
error occurs again,
consult the nearest
Omron dealer.
5.3 Troubleshooting
Trouble
When the O/I
button is
pushed, nothing
is displayed.
What to inspect
Are the batteries
worn out?
How to repair
Replace both
batteries with
new 5 ones
Insert the batteries
correctly.
Elbows are bent.
Moving your body or arms
during measurement.
Is the battery
polarity correct?
The value of body Is the measurement Measure again in
fat percentage
displayed is ab-
normally high
(or low).
posture correct?
correct posture.
Arms held at an angle,
either too low ot too high.
Measuring while lying down
or sitting.
An error (E1 to E6) Please refer to "Explanation of Error
is displayed and Codes". (see above)
the measurement
How to hold the grips.
In the following cases, the electric resistance may not be
measured correctly.
is impossible.
The results differ Please refer to "How to Obtain a Correct
extremely for each Measurement"
measurement.
Your fingers are
not properly
gripping the
electrodes.
Other conditions. Push the O/I button again and restart
from the beginning
If you are unable to obtain a correct measurement after
taking the above-mentioned troubleshooting steps, please
contact the nearest OMRON dealer.
When holding the grips, the hands are
positioned unevenly towards the top or
the bottom.
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English
5.4 Important information regarding Electro Magnetic
Compatibility (EMC)
6. SPECIFICATIONS
With the increased number of electronic devices such as
PC's and mobile (cellular) telephones, medical devices in
use may be susceptible to electromagnetic interference from
other devices. Electromagnetic interference may result in
incorrect operation of the medical device and create a
potentially unsafe situation. Medical devices should also not
interfere with other devices.
Model:
Display:
OMRON BF306 Body Fat Monitor
Body fat percentage (4.0% to 50.0%)
BMI (7.0 to 90.0)
Fat% interpretation levels: low,
normal, high, too high
BMI interpretation levels: low,
normal, high, too high
Accuracy (S.E.E.):
Input data:
4.1 %
In order to regulate the requirements for EMC (Electro
Magnetic Compatibility) with the aim to prevent unsafe
product situations, the EN60601-1-2 standard has been
implemented. This standard defines the levels of immunity
to electromagnetic interferences as well as maximum levels
of electromagnetic emissions for medical devices.
Height: 100.0 cm. to 199.5 cm.
Weight: 10 kg to 199.8 kg
Age: 18 to 70 years old
Gender: Male / Female
Number of personal
memories:
Power supply:
Battery life:
9 memory numbers
2 AAA batteries
Approximately 1 year (when used
twice a day)
This medical device manufactured by OMRON Healthcare
conforms to this EN60601-1-2:2001 standard for both immu-
nity and emissions.
Operating temperature
and humidity:
Storage temperature
and humidity:
External
dimensions:
Weight:
Package includes:
+10°C to +40°C, 30% to 85% RH
-20°C to +60°C, 10% to 95% RH
Nevertheless, special precautions need to be observed:
• Do not use mobile (cellular) telephones and other devices,
which generate strong electrical or electromagnetic fields,
near the medical device. This may result in incorrect opera-
tion of the unit and create a potentially unsafe situation.
Recommendation is to keep a minimum distance of 7 m.
Verify correct operation of the device in case the distance
is shorter.
Approx. 197 (L) x 128 (H) x 49 mm (W)
Approx. 230 g (not including batteries)
2 AAA batteries, main unit, instruc-
tion manual, warranty card
This OMRON product is produced under the strict quality
system of OMRON Healthcare Co. Ltd., Japan.
Further documentation in accordance with EN60601-1-2:2001
is available at OMRON Healthcare Europe at the address
mentioned in this instruction manual. Documentation is also
available at www.omron-healthcare.com.
Specifications may be changed without prior notice.
= Type BF
Correct Disposal of This Product (Waste Electrical
& Electronic Equipment)
This marking shown on the product or its literature,
indicates that it should not be disposed with other
household wastes at the end of its working life. To
prevent possible harm to the environment or human
health from uncontrolled waste disposal, please separate
this from other types of wastes and recycle it responsibly to
promote the sustainable reuse of material resources.
Read the instructions in this manual carefully.
This device fulfills the provisions of the EC directive
93/42/EEC (Medical Device Directive).
Manufacturer
OMRON HEALTHCARE Co., Ltd.
53, Kunotsubo, Terado-cho, Muko, Kyoto,
617-0002 JAPAN
Household users should contact either the retailer where
they purchased this product, or their local government
office, for details of where and how they can take this item
for environmentally safe recycling.
EU-representative
OMRON HEALTHCARE EUROPE B.V.
Scorpius 33, 2132 LR Hoofddorp, THE NETHERLANDS
Business users should contact their supplier and check the
terms and conditions of the purchase contract. This product
should not be mixed with other commercial wastes for dis-
posal.
OMRON (DALIAN) CO., LTD.
Production facility
Subsidiary
Dalian, CHINA
OMRON HEALTHCARE UK LTD.
Opal Drive, Fox Milne, Milton Keynes, MK15 0DG, U.K.
OMRON MEDIZINTECHNIK
This product does not contain any hazardous substances.
HANDELSGESELLSCHAFT mbH
John-Deere-Str. 81a, 68163 Mannheim, GERMANY
OMRON SANTÉ FRANCE SAS
14, rue de Lisbonne, 93561 Rosny-sous-Bois Cedex, FRANCE
Made in China
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