Tanita SC-240, SC-240IM Owner's Manual

BODY COMPOSITION ANALYZER

SC-240 / SC-240IM

Instruction manual

Temperature Range for Use : Relative Humidity : 30% – 80%

Max Altitude : Pressure Range of Environment : 86kPa - 106kPa

0°C – 35°C (32F˚ – 95˚F)

(without condensation)

2,000m ASL (6,500ft ASL)

Please read this Instruction Manual carefully and keep it for future reference.

Temperature Range of Environment : -10°C – 60°C (14°F – 140°F) Range of Relative Humidity : 10% – 90% (without condensation) To avoid malfunctions, avoid storing the equipment where there is direct sunlight, significant temperature changes, the risk of dampness, a large amount of dust, in the vicinity of fires, or where there is the risk of receiving vibrations or shocks.

Intended us

• This equipment can be used in the screening of certain adult diseases and conditions related to body weight and composition.

• It can be used in the monitoring and prevention of conditions caused by excessive deposits of fat tissue such as diabetes, hyperlipidemia, cholelithiasis and fatty liver.

• It can be used in the monitoring of changes in individuals‘ body composition related to differences in the ratio of fat tissue to lean.

• It can be used to assess the effectiveness of individuals‘ nutrition and exercise programmers, both for health and physical fitness.

• The TANITA Body Composition Analyzer is indicated for use in the measurement of weight and impedance , and the estimation of body mass index (BMI), total body fat percent, total body water percent and weight , muscle mass (skeletal and smooth), physique rating, bone mass, visceral fat rating with healthy range, basal metabolic rate (BMR), and metabolic age, using B IA (Bioelectrical Impedance Analysis).

The device is indicated for use for healthy children 5-17 years old and healthy adults

with active, moderately active, to inactive lifestyles.

Efficacy

1. This product is simple to use, and requires no specialized facilities or expertise to take measurements.

2. Measurements can be taken quickly and easily, causing minimal inconvenience to the patient during measurments.

Contents

Before use

(safety precautions)

(cautions for safety)

Safety Notes 3 Part Names & Accessories 6 Names and Functions of Display Panel & Operation Keys 7 Preparation (Power supply) 8 Various setting 9

How to use

How to use (Mode selection) 10 How to use (Body composition mode) 11 How to use (Scale mode) 14 How to use (Scale / Weight lock mode) 15 How to use (Scale / BMI mode) 16

When necessary

Troubleshooting 17 Various criteria 18 Connection with a personal computer 22 Technical notes 26 Specifications 30

How to Measure Correctly

The following outlines precautionary measures to be taken to avoid injury to the users of this device and others, and to prevent damage to property. Please familiarise yourself with the contents to ensure the safe operation of this equipment.

Ignoring instructions highlighted with this mark could result in death or

Warning

Caution

Warning

This device must not be used on subjects with pacemakers or other mechanical implants.

This device passes a weak electrical current through the body which could interfere with and cause the malfunction of electrical medical implants, resulting in serious repercussions.

severe injury.

gnoring instructions highlighted with this mark could result in injury or

I damage to property.

This mark indicates actions that are prohibited.

This mark indicates instructions that must always be adhered to.

Prohibited

Always…

Do not handle the plug with a wet hand.

Such action may result in electric shock, fire, or leakage.

Keep this equipment away from flammable gas and oxygen rich environment.

No modification of this equipment is allowed.

There is a risk of electrocution or injury. Nor can precise analysis be guaranteed.

Do not use double adapters.

May result in fire.

Use only a correctly wired outlet.

Only genuine cables and equipments are allowed.

Caution

Keep off wet circumstance.

Avoid using on subjects with allergies to metals.

Allergic reactions may be caused by the stainless steel used in the electrodes of this device.

Do not jump on the equipment.

Do not lean on the equipment.

Do not use this equipment near other products that emit electromagnetic waves.

Do not insert fingers into gaps and holes.Prohibited

Avoid impacts on the display.

The screen panel may split and cause injury.

Ensure disabled persons do not attempt to use the equipment by themselves.

A companion must perform the measurements.

Be sure to clean the scale platform with appropriate disinfectant after each use.

For your safety to avoid the risk of electric shock and to secure the accuracy, keep a clearance with patients during measuring.

Always…

Continually monitor both the subject and the equipment for anomalies.

Should an anomaly with the subject or the equipment be discovered, take appropriate action, such as stopping the equipment, while ensuring the safety of the subject.

Unplug the equipment from the wall outlet when it will not be in use for long periods of time.

Do not interpret analysis results yourself (including evaluating measurements and formulating exercise programmes based on results, etc.).

Weight loss and exercise based on self-analysis could be detrimental to you health. Always follow the advice of a qualified professional.

This equipment is designated a Class B IT equipment (mainly for systems intended to be used in domestic environments) and CE (EMC), but weak equipment may be affected.

If you connect your computer or peripherals, please use the compliance with IEC60601-1 (EN60601-1). Or if using the compliance with IEC60950 (EN60950), power must be supplied from themedical isolating transformer. Keep at a distance of 1.5m between each equipment during operation. If you ignore this requirement, may cause electrical shock of patients or operation.

How to Measure Correctly

For Accurate Measurements

Avoid measuring after hard exercise.

May result in measurement errors. Please take measurements after sufficient rest.

void measuring after over-eating or over-drinking, and when severely

A dehydrated.

May result in measurement errors. For greater accuracy, avoid using directly after

Prohibited

Always…

waking up. Use at the same time on each occasion, at least three hours after eating.

Do not take measurements while using transmitters, such as mobile phones, which may affect readings.

Use the device under the same conditions and in the same position as much as possible to track changes.

Readings are greatly affected by the level of hydration and position of the body. Please use at the same time each day, under the same conditions and in the same body position.

Avoid measuring in locations of greatly differing temperature.

May result in measurement errors. When the equipment has been moved to a location ±20ºC (±36˚F), allow to stand for at least 2 hours before using.

Bare feet should be placed correctly on the electrode panel for measurement.

Also, make sure the soles of feet are free of excess dirt, as this may also act as a barrier to the mild current.

Use in a stable location.

Errors in measurements may occur when the device is used in an unstable location.

Scheduled Maintenance

Perform periodic checks TANITA recommends that each facility conduct periodic checks of each unit.

1. Check the following at least daily:

• Place the unit on a stable and level surface.

2. Visually inspect the following at least weekly:

• the display for any damage or contamination

• all cables, cords, and connector ends for damage or contamination

• all safety-related labeling for legibility

• all accessories (sensors,electrodes ) for wear or damage

Always…

•documentation for current revision of the unit

3. Visually inspect the following at least monthly:

• Screws on unit

Update settings, replace items, or call for service as necessary based on results of visual inspection. Do not use the equipment if you see any signs of damage. Qualified service personnel must check any equipment that is damaged for proper operation before putting the equipment back into use.

The equipment should only be inspected in accordance with the regulations in each country.

Names and Functions of Display Panel & Operation Keys

ON / OFF key : turn the power ON / OFF

Mode selection key : Select Body composition analyzer / Weigh scale

PT / CE : Set preset tare / Clear input values

UP : Increase numerical values

DOWN : Decrease numerical values

Enter / Zero reset : Enter input value / Scale reset to zero / Mode setting

NET : Indicates that the clothes weight is input

Weight Only : Indicates that the Weight Only (Scale) Mode

Weight Lock : Indicates that the Weight is locking

Weight Lock Mode : Indicates that the Weight Lock function is activated

Age : Indicates that the age is input

Height : Indicates that the height is input

Step On : Indicates that the measuring start

Preset tare

(Clothes weight)

Athletic mode

Caution. Refer to the

attached information

for positive polarity

Male Female

Direct current Input, Output

Alternating current Negative polarity

Preparation (Power supply)

• Please change the batteries LR6 (AA)

• Ensure that the batteries are inserted with

• When not in use for a long time, remove the

(1) Insert the AC adapter jack into the AC

adapter inlet on the right side of the main unit.

(2) Plug the AC adapter into the power

outlet.

carefully to avoid dropping them on your feet.

the correct polarity incorrect, then the batteries may leak and damage the equipment.

batteries before storing the equipment.

/ . If the polarity is

• This equipment must be used with the included AC adapter.

• Please o bs erve t h e f ol lowing instr u c t i o n s for accurate measurement.

Measurement may not be possible on

the unstable environment.

During weight measurement, please

don’t touch any connecting cable “such as a AC Adapter cable and PC communication cable” to avoid causing unstable scale installation.

Call up the setting mode.

Press to turn on the power.

Various setting

Press

SET 0 is displayed.

Select the setting items.

1) by or ,

2) and

SET1

Set ON / OFF of the beep sound.

(0.off or 1.on, default: 1.on)

SET2

Set ON / OFF of the athlete selection.

(0.off or 1.on, default: 1.on)

SET3

Set the automatic acceptance time when inputting. (input range 0-9 seconds, default: 5 seconds) * “0” automatic acceptance function deactivate.

SET4

Set the automatic power off time. (0, 5, 10, 30, 60 minutes, default: 5 minutes) * “0” automatic power off function deactivate.

SET5

Set the unit. (0kg or 1.lb, default: 1.lb)

for 1 second.

key.

Input the setting value.

1) by or ,

2) and

Press

key.

to turn the power off.

How to use (Mode selection)

Press to turn on the power.

Model name is displayed.

is displayed (Body compositi o n

analyzer).

Mode is selected by key.

Body composition mode (

P. 1 1) Scale mode ( P.14)

Scale / Weight lock mode ( P.15)Scale / BMI mode ( P.16)

How to use (Body composition mode)

Press to turn on the power.

Check that the Body composition

analyzer mode is selected (

Input the clothes weight.

1) by or ,

2) and key *

a clear the input.

P. 10).

Select the Body type and Gender.

1) by or ,

2) and key *

a return to previous status.

How to use (Body composition mode)

Input the age

1) by or ,

2) and key *

Input the height

1) by or ,

a return to previous status

(continued)

2) and key * a return to previous status

How to use (Body composition mode)

Step on the platform with bare feet,

Measurement completion.

<BMI>

* , a Clear the displayed result

How to use (Scale mode)

Press to turn on the power.

Check that the Weight only mode is

selected (

Input the clothes weight.

1) by or ,

2) and key *

a clear the input.

P. 10 ).

Step on the platform, after “Step on”

Measurement completion.

How to use (Scale / Weight lock mode)

Activation of Weight lock function.

Press

Check that the Weight only mode

(Weight lock mode) is selected

P. 10).

(

Input the clothes weight.

1) by or ,

2) and key *

to turn on the power.

a clear the input.

Step on the platform, after “Step on”

Measurement completion.

* a Clear the displayed result

How to use (Scale / BMI mode)

Press to turn on the power.

Check that the BMI mode is selected

P. 10).

(

Input the clothes weight.

1) by or ,

2) and key *

a clear the input.

Input the height

1) by or ,

2) and key *

Step on the platform, after “Step on”

a return to previous status

Measurement completion.

* , a Clear the displayed result

Troubleshooting

- Please check the following before asking for repair.

Symptom Please check

Impedance

measurement error

Zero point error

How to measure

• Measure with bare feet.

• When the soles of your feet are dry, drop water for about 0.5 ml with the attached dropper on the electrodes before measurement.

• Check the input information.

• T u r n o f f the power, and remove the items on the platform and turn on the power again, and then redo the measurement.

• Is it installed at a place with vibrations?

• Is the platform inclined?

The measured weight is not stable.

Nothing is displayed even after turning on the power.

e Keep the platform horizontal.

• I s a nything caught in the gaps of the platform?

e Remove anything caught in the gaps.

• Check that the power supply is connected correctly.

Display part

is displayed.

Note

• I n t h e case that an error is displayed other than the above, turn off the power once, and then measure again.

If the same error is displayed repeatedly, contact our customer service center.

• The weight to measure exceeds the measurement range.

Variouscriteria

Whatisbodyfatpercentage?

Body fat percentage is the amount of body fat as a proportion of your body weight.

Reducing excess levels of body fat has shown to reduce the risk of certain conditions such as high blood pressure, heart disease,diabetes and cancer. The chart below shows the healthy ranges for body fat.

(Applicableage5-99)

Underfat : below the healthy body fat range. Increased risk for health problems. Healthy : within the healthy body fat percentage range for your age/gender. Overfat : above the healthy range. Increased risk for health problems. Obese : high above the healthy body fat range. Greatly increased risk of obesity-related health problems.

Note: Athletes may have a lower body fat range depending on their particular sport or activity.

- What is total body water percentage?

Total Body Water Percentage is the total amount of fluid in a person’s body expressed as a percentage of their total weight.

Wat er plays a vital role in many of the body’s processes and is found in every cell, tissue and organ. Maintaining a healthy total body water percentage will ensure the body functions efficiently and will reduce the risk of developing associated health problems. Your body water levels naturally fluctuate throughout the day and night. Your body tends to be dehydrated after a longnight and there are differences in fluid distribution between day and night. Eating large meals, drinking alcohol, menstruation, illness, exercising, and bathing may cause variations in your hydration levels. Your body water percentage reading should act as a guide and should not be used to specifically determine your absolute recommended total body water percentage. It is important to look for longterm changes in total body water percentage and maintain a consistent, healthy total body water percentage. Drinking a large quantity of water in one sitting will not instantly change your water level. In fact, it will increase your body fat reading due to the additional weight gain. Please monitor all readings over time to track the relative change. Every individual varies but as a guide the average total body water percentage ranges for a healthy adult are:

Female : 45 to 60% Male : 50 to 65% Source : Based on Tanita's Internal Research

Note: The total body water percentage will tend to decrease as the percentage of body fat increases. A

person with a high percentage of body fat may fall below the average body water percentage. As you lose body fat the total body water percentage should gradually move towards the typical range given above.

(Applicable age 18 - 99)

- What is visceral fat rating? (Applicable age 18 - 99)

This feature indicates the rating of visceral fat in your body.

Visceral fat is the fat that is in the internal abdominal cavity, surrounding the vital organs in the trunk (abdominal) area. Research shows that even if your weight and body fat remains constant, as you get older the distribution of fat changes and is more likely to shift to the trunk area especially post menopause. Ensuring you, have healthy levels of visceral fat my reduce the risk of certain diseases such as heart disease, high blood pressure, and the onset of type 2 diabetes. The Tanita Body Composition Analyzer will provide you with a visceral fat rating from 1 – 59.

Rating from 1 to 12

Indicates you have a healthy level of visceral fat. Continue monitoring your rating to ensure that it stays within the healthy range.

Rating from 13 – 59

Indicates you have an excess level of visceral fat. Consider making changes in your lifestyle possibly through diet changes or increasing exercise.

Source: 1) Tanita Institute Contract Study. Algorithm Development for Estimating Visceral Fat Rating.

SB Heymsfield MD. Columbia University College of Physicians and Surgeons 2004.

2) Wa ng, Z., et al. Japanese-American Differences in Visceral Adiposity and a Simplified Estimation Method for Visceral Adipose Tissue. North American Association for the Study of Obesity. Annual Meeting. Abstract 518-P. 2004

Note:

•Even if you have a low body fat rate, you may have a high visceral fat level.

•For medical diagnosis, consult a physician.

Various criteria

(continued)

-What is basal metabolic rate (BMR)? (Applicable age 18 - 99)

WHAT IS BMR?

Your Basal Metabolic Rate(BMR) is the minimum level of energy your body needs when at rest to function effectively including your respiratory and circulatory organs, neural system, liver, kidneys, and other organs. You burn calories when sleeping.

About 70% of calories consumed every day are used for your basal metabolism. In addition, energy is used when doing any kind of activity however; the more vigorous the activity is the more calories are burned. This is because skeletal muscle (which accounts for approximately 40% of your body weight) acts as your metabolic engine and uses a large amount of energy. Your basal metabolism is greatly affected by the quantity of muscles you have, therefore increasing your muscle mass will help increase your basal metabolism.

By studying healthy individuals, scientists have found that as people age, their metabolic rate changes. Basal metabolism rises as a child matures. After a peak at the age of 16 or 17, it typically starts to decrease gradually.

Having a higher basal metabolism will increase the number of calories used and help to decrease the amount of body fat. A low basal metabolic rate will make it harder to lose body fat and overall weight.

HOW DOES A TANITA BODY COMPOSITION ANALYZER CALCULATE BMR?

The basic way of calculating Basal Metabolic Rate BMR is a standard equation using weight and age. Tanita has conducted in-depth research into the relationship of BMR and body composition giving a much more accurate and personalized reading for the user based on the impedance measurement. This method has been medically validated using indirect calorimetry (measuring the breath composition).* * Reliability on

Exposition Title: International Comparison: Resting Energy Expenditure Prediction Models: The American Journal of

Clinic

al Nutrition

equation for Basal Metabolic Rate: At 2002 Nutrition Week : A Scientific and Clinical Forum and

- What is metabolic age? (Applicable age 18 - 99)

This feature calculates your BMR and indicates the average age associated with that type of metabolism.

If your BMR Age is higher than your actual age, it is an indication that you need to improve your metabolic rate. Increased exercise will build healthy muscle tissue, which will improve your metabolic age.

You will obtain a reading between 12 and 90. Under 12 will be displayed as “12” and over 90 displayed as “90”.

-Whatismusclemass?

This feature indicates the weight of muscle in your body. the muscle mass displayed includes the skeletal muscles, smooth muscles (such as cardiac and digestive muscles) and the water contained in these muscles. Muscles play an important role as they act as an engine in consuming energy. As your muscle mass increase, your energy consumption increases helping you reduce excess body fat levels and lose weight in a healthy way.

(Applicableage18-99)

-Whatisbonemass?(Applicableage18-99)

This feature indicates the amount of bone (bone mineral level, calcium or other minerals) in the body.

Research has shown that exercise and the development of muscle tissue are related to stronger, healthier bones. While bone structure is unlikely to make noticeable changes in a short period, it is important that you develop and maintain healthy bones by having a balanced diet and plenty of exercise. People worried about bone disease should consult their physician. People who suffer from osteoporosis or low bone densities due to advanced age, young age, pregnancy,hormonal treatment or other causes, may not get accurate estimations of their bone mass.

Below is the result of estimated bone masses of persons aged 20 to 40, who are said to have the largest amounts of bone masses, by weight. (Source : Tanita Body Weight Science Institute)

Please use the below charts as a guide to compare your bone mass reading.

Women : Average of estimated bone mass

Weight (lb)

Less than 110 lb 110lb - 165 lb 165 lb and up

4.3 lb 5.3 lb 6.5 lb

Less than 50 kg 50 kg - 75 kg 75 kg and up

1,95 kg 2,40 kg 2,95 kg

Weight (kg)

Men : Average of estimated bone mass

Weight (lb)

Less than 143 lb 143 lb - 209 lb 209 lb and up

5.9 lb 7.3 lb 8.1 lb

Note: Persons described below may obtain varying readings and should take the values given for

reference purposes only.

- Elderly persons

- Women during or after menopause

- People receiving hormone therapy

“Estimated bone mass” is a value estimated statistically based on its correlation with the fat-free amount (tissues other than the fat). “Estimated bone mass” does not give a direct judgment on the hardness or strength of the bones or the risks of bone fractures. If you have concerns over your bones, you are recommended to consult a specialist physician.

Less than 65 kg 65 kg - 95 kg 95 kg and up

2,66 kg 3,29 kg 3,69 kg

Weight (kg)

Connection with a personal computer

he USB interface enables input and output from this equipment.

Communication standards

Communication method

Signal speed

Data bit length

Parity

Stop bit

Flow control

Terminator

USB

Asynchronous Transmission

9600 baud

8 bits

None

1 bit

None

CR+LF

Note

• USB connector (B - Type 4 - pin female) are located on the back of the control box.

• Please provide your own cable as necessary as none are included. USB cable : A - Type 4 - pin (male) - B - Type 4 - pin (male)

• Yo u must install the necessary driver onto your PC, available download from http://www.tanita.com or on the enclosed CD-Rom.

- Tra nsm it data

Tra ns mi ss ion Data is output immediately after measurement regardless of the status of the receiving equipment (personal computer, etc.). Therefore the receiving equipment needs to be ready to accept the data before measuring.

(1) Output example (in the case to kg unit)

Note

• The data are divided with commas (,) for each data.

• The terminator (end of the data) is CR (ASCII code 0DH), LF (ASCII code 0AH).

• T h e c o n t r ol data for the items 1 – 4 are for expansion. They are not used presently so the receiving side can ignore them.

• Because of its specifications, the scale will output an irrelevant signal approximately 0.1 second after data output. Make sure you ignore this signal and do not import it.

Connection with a personal computer

cale BMI

Control data

˜0 ˜1 ˜2

Bt GE

Pt Wk FW

wW ww

Item

Header

edom mc / gktamrof

2 bytes ﬁxed length

3 4 5

7 88

Adult

Body composition

Order of output

thlete

Child

111

3 4 5 6

1 22 33 44 55

1 byte ﬁxed length 1 byte ﬁxed length 1 byte ﬁxed length

8 bytes ﬁxed length (“SC-240”)

1 byte ﬁxed length (0: Standard 2: Athletic)

1 byte ﬁxed length (1: Male 2: Female)

1-2 bytes variable length

4-5 bytes variable length (cm) 3-4 bytes variable length (increments 0.1 kg) 3-5 bytes variable length (increments 0.1 kg)

3-4 bytes variable length (increments 0.1%) 3-5 bytes variable length (increments 0.1 kg) 3-5 bytes variable length (increments 0.1 kg)

3-5 bytes variable length (increments 0.1 kg)

4 bytes ﬁxed length (increments 0.1%)

3-5 bytes variable length (increments 0.1)

“XXXXXX”

0 or 2 1 or 2

XXX.X

XX.X

XXX.X

XX.X XXX.X XXX.X

XXX.X

XX.X XXX.X

Control data Control data Control data

Model number

Body type

Gender

Age

Height

Preset tare

Body weight

Fat %

Fat mass

FFM

Body water

BMI

ZF 1-2 bytes variable length (4-55)

XXXX.X

Impedance (50 kHz)

CS 2 bytes ﬁxed length

Checksum

Body water %

SN 666

10 bytes ﬁxed length

“XXXXXXXX”

Serial number

999 10 10 10 11 11 11 7

812 12 12

7 8

9 13 13 14 14 15 15

13 14 15

mW 3-5 bytes variable length (increments 0.1 kg)

XXX.X

Muscle mass

16 16

sW 1-2 bytes variable length (1-24)

Muscle score

17 17

bW 3-5 bytes variable length (increments 0.1 kg)

XXX.X

Bone mass

18 18 19 20

19 20

21 21 16

Sw 3-5 bytes variable length (increments 0.1 kg)

XXX.X

Ideal body weight

OV 3-5 bytes variable length (increments 0.1%)

XXX.X

Degree of obesity

IF 1-2 bytes variable length

Visceral fat rating

24 22

rb 1-5 bytes variable length (increments 1 kJ)

XXXXX

BMR (kJ)

25 23

rB 1-5 bytes variable length (increments 1 kcal)

XXXXX

BMR (kcal)

26 24

rJ 1-2 bytes variable length (1-24)

BMR score

27 25

rA 2 bytes ﬁxed length

Metabolic age

28 26

29 27 17 30 28 18 10

(2) Output data items

Output sample

Standard, Male, 30 years old, Height 170 cm {0, 16, ~0, 1, ~1, 1, ~2, 1, MO, “SC-240”, SN, “00000002”, Bt, 0, GE, 1, AG, 30, Hm, 170, Pt, 0.0, Wk,

82.7, FW, 18.6, fW, 15.4, MW, 67.3, mW, 64.0, sW, 19, bW, 3.3, wW, 48.0, ww, 58.0, MI, 28.6, Sw, 63.6, OV, 30.0, IF, 6, rb, 8255, rB, 1973, rJ, 12, rA, 28, ZF, 369.4, CS, FD

(continued)

Scale BMI

Control data

˜0 ˜1 ˜2

Bt GE AG

Wk FW

wW ww

{

Item

Header

2 bytes ﬁxed length

3 4 5

7 88

Adult

Body composition

Order of output

thlete

Child

111

3 4 5 6

1 22 33 44 55

1 byte ﬁxed length 1 byte ﬁxed length 1 byte ﬁxed length

8 bytes ﬁxed length (“SC-240”)

1 byte ﬁxed length (0: Standard 2: Athletic)

1 byte ﬁxed length (1: Male 2: Female)

1-2 bytes variable length

4 bytes variable length (in)

3-5 bytes variable length (increments 0.2 lb)

4 bytes ﬁxed length (increments 0.1%)

3-5 bytes variable length (increments 0.1)

“XXXXXX”

0 or 2 1 or 2

XXX.X

XX.X

XXX.X

XX.X XXX.X XXX.X

XXX.X

XX.X XXX.X

Control data Control data Control data

Model number

Body type

Gender

Age

Height

Preset tare

Body weight

Fat %

Fat mass

FFM

Body water

BMI

ZF 5-6 bytes variable length (increments 0.1)

XXXX.X

Impedance (50 kHz)

CS 2 bytes ﬁxed length

Checksum

Body water %

SN 666

10 bytes ﬁxed length

“XXXXXXXX”

Serial number

999 10 10 10 11 11 11 7

812 12 12

7 8

9 13 13 14 14 15 15

13 14 15

3-5 bytes variable length (increments 0.2 lb)

XXX.X

Muscle mass

16 16

sW 1-2 bytes variable length (1-24)

Muscle score

17 17

3-5 bytes variable length (increments 0.2 lb)

XXX.X

Bone mass

18 18 19 20

19 20

21 21 16

3-5 bytes variable length (increments 0.2 lb)

XXX.X

Ideal body weight

3-5 bytes variable length (increments 0.1%)

XXX.X

Degree of obesity

IF 1-2 bytes variable length

Visceral fat rating

24 22

rb 1-5 bytes variable length (increments 1 kJ)

XXXXX

BMR (kJ)

25 23

1-5 bytes variable length (increments 1 kcal)

XXXXX

BMR (kcal)

26 24

rJ 1-2 bytes variable length (1-24)

BMR score

27 25

rA 2 bytes ﬁxed length

Metabolic age

28 26

29 27 17 30 28 18 10

mode ni-tf / blformat

3-4 bytes variable length (increments 0.2lb) 3-5 bytes variable length (increments 0.2 lb) 3-4 bytes variable length (increments 0.1%) 3-5 bytes variable length (increments 0.2 lb) 3-5 bytes variable length (increments 0.2 lb)

Output sample

Standard, Male, 30 years old, Height 67.0 in {0, 16, ~0, 1, ~1, 1, ~2, 1, MO, “SC-240”, SN, “00000003”, Bt, 0, GE, 1, AG, 30, Hi, 67.0, Pt, 0.0, Wp,

182.2, FW, 18.7, fW, 34.0, MW, 148.2, mW, 140.8, sW, 19, bW, 7.4, wW, 105.6, ww, 58.0, MI, 28.5, Sw,

140.4, OV, 29.8, IF, 6, rb, 8247, rB, 1971 ,rJ, 12, rA, 29, ZF, 372.8, CS, 2A

Technical notes

Body composition measurement by the BIA method.

Introduction

This equipment provides estimated values for each measured value of body fat percentage, fat mass, fatfree mass, muscle mass and bone mass by the DXA method, estimated value for the total body water measured value by the dilution method and estimated value for the visceral fat rating by MRI method using the Bioelectrical Impedance Analysis (BIA method). For measurement, a mode must be selected based on body type.

1) Standard (for 5-99 years of age)

2) Athletic (for Athletic persons who exercise considerably more than non-athlete) Making a distinction by body type in the measurement mode produces more reliable body composition measurements for athletic persons, whose body compositions differ from those of average persons.

- Principles of body composition measurement

BIA is a means of measuring body composition – fat mass, predicted muscle mass, etc. – by measuring bioelectrical impedance in the body. Fat within the body allows almost no electricity to pass through, while electricity passes rather easily through water, much of which is found in muscles. The degree of difficulty with which electricity passes through a substance is known as the electrical resistance, and the percentage of fat and other body constituents can be inferred from measurements of this resistance. The Tanita Body Composition Analyzer measures body composition using a constant current source with a high frequency current (50 kHz, 90 µA). The 8 electrodes are positioned so that electric current is supplied from the electrodes on the tips of the toes of both feet, and voltage is measured on the heel of both feet. The current flows into the upper limbs or lower limbs, depending on the body part(s) to be measured.

- What is the DXA method?

DXA was originally designed to measure bone mineral content, but in the full-body scan mode the body fat percentage, fat mass, and fat free mass of individual body parts (arms, legs, trunk) can also be measured. The image below shows one example of body composition measurement results obtained by DXA.

Body composition measurement

results obtained by DXA

- What is dilution method?

In the dilution method, a labeled substance for a known amount is given and the concentration in equilibrium diffusing evenly is measured to obtain the total amount of the solvent that dilutes the labeled substance. To measure the total body water (TBW), deuterium oxide (D2O) is generally used as the labeled substance. Deuterium oxide uses the overall total body water as dilution space so the total body water can be obtained. To obtain the extracellular fluid amount, sodium bromide (NaBr) is used as a labeled substance. Bromine (Br) is said to not enter the inside of cells, and uses extracellular fluid as the dilution space.

(Lunar Co., Ltd; DPX-L)

- What is the visceral fat?

Visceral Adipose Tissue (VAT) has been associated with increased risk of developing lifestyle-related diseases. Accordingly, knowing and periodically checking the estimated VAT accumulation serves as one factor of a number of factors in assessing the prevention of lifestyle related diseases.

Tanita has developed the technology for measuring the VAT accumulation risk through bioelectrical impedance analysis (BIA) in comparison with image analysis applied to magnetic resonance imaging (MRI), in addition to the established technology for measuring the percent of body fat. The VAT accumulation risk is calculated by estimating the VAT area by the BIA method on the basis of MRI image processing. This method has a higher correlation than the estimation of the VAT accumulation risk based on BMI or abdominal circumference (waist circumference), allowing estimation that corresponds more precisely to individuals. * The VAT area by MRI is calculated by carrying out an image processing of the cross section of the

lumber vertebra L4-L5 regions.

(Fig. 1 - Fig. 3: Research results by N. Y. Columbia University and Jikei University Published by the North American Association for the Study of Obesity [NAASO] in 2004.)

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Tanita SC-240, SC-240IM Owner's Manual

Specifications and Main Features

Frequently Asked Questions

User Manual