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3
2. HOW TO OBTAIN A CORRECT
MEASUREMENT
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
Understanding the
normal changes in
your body fat per-
centage 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 obtain-
ing an accurate trend
of your body fat. It is
recommended to use
this unit in the same
environment and
same daily circum-
stances. (See chart)
2.2 The conditions or circumstances NOT suitable for a
correct measurement
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.
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.
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
Hands are dry. Slightly moisten hands with
a wet towel, then measure.
When you hold the grip Warm the grip electrodes by
electrodes, they feel cold. leaving the unit in a warm
room for approximately ten
minutes.
Your body and hands are cold Warm your hands by
due to the blood not circulating immersing in warm water
well. or staying in a warm room.
Start the measurement
again.
Daily activities
Waking up
Breakfast
Lunch
Taking bath and dinner
Going to bed
2 hours
2 hours
2 hours
After waking up
Before lunch and about 2 hours or
more after breakfast
In the afternoon about 2 hours or
more after lunch and before taking
bath or dinner
Before going to bed and about 2
hours or more after taking a bath
or dinner
Recommended time zone
Recommended time zone
Recommended time zone
Recommended time zone
Children of
growing stage
Elderly people
and women after
menopause
Those having
swelling
Patients of
osteoporosis
having very
low bone density
Bodybuilders or
professional
atheltes
Patients under-
going dialysis Pregnant women
People with
a fever
Immediately after
vigorous exercise
Immediately after
taking bath or sauna
After drinking
much alcohol
After taking a large amount
of water or after a meal
English
2
Thank you for purchasing this OMRON BF306 Body Fat
Monitor. To ensure proper and safe use of this unit, please take
a few minutes to carefully read this instruction manual.
Please keep this instruction manual on hand and in a safe
place for future reference.
TABLE OF CONTENTS
1 Safety precautions and storage . . . . . . . . . . . . . . . . . . . . . 2
1.1 Important safety instructions . . . . . . . . . . . . . . . . . . . 2
1.2 Care and storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3 Features of this product . . . . . . . . . . . . . . . . . . . . . . . 2
2 How to obtain a correct measurement? . . . . . . . . . . . . . . 3
2.1 Recommended times for measurement . . . . . . . . . . . 3
2.2 The conditions or circumstances that are
not suitable for a correct measurement . . . . . . . . . . . 3
2.3 Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Recommendations for taking a measurement . . . . . . 3
3 Operation and usage of the Omron BF 306
body fat monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1 Description of the unit . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Battery insertion and replacement . . . . . . . . . . . . . . . 4
3.3 Setting personal data before taking
a measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.4 To take a measurement . . . . . . . . . . . . . . . . . . . . . . . . 5
3.5 Setting and using personal memory number . . . . . . 6
3.6 To change any values . . . . . . . . . . . . . . . . . . . . . . . . . 6
4 How to interpret measured results . . . . . . . . . . . . . . . . . . 6
4.1 BMI (Body Mass Index) value . . . . . . . . . . . . . . . . . . . 6
4.2 Body fat percentage . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.1 Possible causes of inaccurate measurements . . . . . . 7
5.2 Explanation of error codes . . . . . . . . . . . . . . . . . . . . . 7
5.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5.4 Important information for users . . . . . . . . . . . . . . . . . 8
6 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1. SAFETY PRECAUTIONS AND
STORAGE
1.1 Important safety instructions
Please read the following instructions carefully, as they contain
important information concerning the setting up, use and care
of your new Body Fat Monitor.
Keep this manual for future reference.
Do not disassemble the body fat monitor. Apart from the
batteries, it contains no user serviceable parts.
Do not subject the device to strong shocks.
Although there are no known side effects, the body fat monitor
must NOT
be used under the following conditions:
• During an acute contagious disease;
• By persons with medical implants (e.g. pacemakers);
• By persons with any heart disease. Use the monitor after
consultation with your doctor;
• Never use it in combination with artificial heart-lung and
other electronic life support systems;
• Never use it in combination with an electrocardiograph and
other (portable) electronic medical devices.
Do not use the body fat monitor in a highly humid environ-
ment such as sauna or while you are in a bath or in a shower.
Never submerse in water.
Do not let unattended children or infirm persons have access
to the unit.
If you discover that the body fat monitor is damaged or does
not operate properly, switch it off immediately and stop using
it. An authorized dealer using only original OMRON spare
parts must carry out any repairs. Any part of the unit may only
be repaired or replaced by the Omron Service representative.
Please note that this device is only intended to measure the
body composition
1.2 Care and Storage
Clean the main unit with a soft dry cloth. If the main unit is
heavily stained, wipe it with a cloth lightly dampened with
water or detergent, then wipe it dry with a dry cloth.
Avoid an excessive amount of water, this can cause internal
damage. Do not wipe the unit with benzene, gasoline; paint
thinner, alcohol, or other volatile detergents.
1.3 Features of the product
Accurate measurement
The body fat percentage is measured based on the electric
resistance and the personal data such as height, weight, age
and gender. The measured results are closely correlated with
the “underwater weighing method” and the DEXA (Dual
Energy X-ray Absorbtiometry) method, which are said to be
the standard measurements methods for measuring the body
fat percentage.
Measurement is fast and simple
After setting the data, body fat mass can be measured by sim-
ply holding the grip electrodes and pushing the Start button.
The measured results are displayed approximately 7 seconds
after the Start screen is displayed.
Large and clear displays
The easy to read large digital and graphic displays can be
understood at a glance. The measured results based on body
fat percentage and on BMI calculations are displayed alternate-
ly, as well as their interpretations.
Memory
The memory can store the personal data (height, weight, age
and gender) of up to 9 people simultaneously.
Small, lightweight and portable