Please read this Instruction Manual carefully and keep it handy for future reference.
Temperature Range
: 41 to 95°F/5 to 35°C
Relative Humidity Range
: 30 to 80%
(without condensation)
Maximum Altitude
: 6,500ft ASL/2,000m ASL
Atmospheric Pressure Range :
86
to
106kPa
Temperature Range
: 14 to 140°F/-10 to 60°C
Relative Humidity Range
: 10 to 90% (without condensation)
Atmospheric Pressure Range : 70 to 106kPa
<Storage/Transport Conditions><Usage Conditions>
To avoid malfunctions, avoid storing the equipment in a location that is
subject to direct sunlight, significant temperature changes, dampness, large
amounts of dust, the risk of vibration or impact, or near naked flames.
Images in this manual are for illustrative purposes only.
DC-240
Body Composition Analyzer
Instruction Manual
2
Contents
Disposal
This equipment is electronic device. Please dispose of this equipment appropriately as not
general household waste but electronic equipment. Please follow a regional regulation when
you dispose of this.
For Your Safety ……………………………………………… 3
Part Names & Accessories …………………………………… 7
Names and Functions of Display Panel & Operation Keys …… 8
Preparation …………………………………………………… 9
Power Supply ……………………………………………… 10
Various Settings …………………………………………… 11
How to Use (Mode Selection) ……………………………… 12
How to Use (Body Composition Mode) ……………………… 13
How to Use (Scale Mode) …………………………………… 16
How to Use (Scale: Weight Lock Mode) …………………… 17
How to Use (Scale: BMI Mode)……………………………… 18
Troubleshooting …………………………………………… 19
Technical Notes …………………………………………… 20
Specifications ……………………………………………… 26
Intended Use
Efficacy
The TANITA body composition analyzer is a medical device intended to measure weight and impedance, and to
estimate body composition, such as the body fat percentage, total body water percentage, muscle mass, bone
mass, visceral fat rating, basal metabolic rate (BMR), fat mass, body mass index(BMI), and metabolic age using a
noninvasive method on Bioelectrical Impedance Analysis (BIA). DC-240 is indicated for use for healthy children
5‒17 years old and healthy adults with active, moderately active, to inactive lifestyles.
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
measurements.
3
For Your Safety
Warning
Contraindication
Warning
Failure to follow instructions highlighted with this mark could result
in death or severe injury.
Caution
Failure to follow instructions highlighted with this mark could result
in injury or damage to property.
This mark indicates actions that are prohibited.
This mark indicates instructions that must always be followed.
Do not handle the plug with a wet hand.
Such action may result in electric shock, fire, or leakage.
Keep this product away from flammable gas and oxygen rich environment.
Do not use double adapters.
Do not use the product if you have any kind of wound or inflammation on any part of your body
that comes into direct contact with the product.
May result in fire.
No modification of this product is allowed.
There is a risk of electrocution or injury. Nor can precise analysis be guaranteed.
Prohibited
This product must not be used on subjects with pacemakers or other mechanical implants.
This product passes a weak electrical current through the body which could interfere with and cause
the malfunction of electrical medical implants, resulting in serious repercussions.
Use only a correctly wired outlet.
Only genuine cables and equipment are allowed.
Required
Required
This section explains precautionary measures to be taken to avoid injury to the patients
and operators of this product, and to prevent damage to property. Please familiarize
yourself with this information to ensure safe operation of this product.
Prohibited
Do not judge the evaluation of measurement results.
Consult your doctor before you start a body weight management program.
For Your Safety (Continue)
4
Caution
Prohibited
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 product.
Do not jump on the product.
Do not use this product near other products that emit electromagnetic waves.
Do not insert fingers into gaps and holes.
Do not apply force to the display.
The screen panel may break and cause injury.
Do not place items sensitive to magnetic forces near the product.
The magnet of the impedance meter may cause corruption of data on devices such as USB memory sticks if
these are placed near the product.
Assist persons with disabilities.
Another person should assist persons with disabilities who may not be able to take a measurement alone.
For your safety to avoid the risk of electric shock and to secure the accuracy, keep a
clearance with patients during measuring.
Be sure to clean the scale platform with appropriate disinfectant after each use.
Continually monitor both the subject and the product for anomalies.
Should an anomaly with the subject or the product be discovered, take appropriate action, such as
stopping the product, while ensuring the safety of the subject.
Be sure to use the designated AC adapter.
Do not interpret analysis results yourself (including evaluating measurements and
formulating exercise programs based on results, etc.).
Weight loss and exercise based on self-analysis could be detrimental to your health. Always follow the
advice of a qualified professional.
Unplug the AC cable from the product when moving it.
This product may only be operated by healthcare professionals.
Required
5
For Accurate Measurements
Avoid measuring after hard exercise.
May result in measurement errors. Please take measurements after sufficient rest.
Avoid measuring after over-eating or over-drinking, and when severely
dehydrated.
May result in measurement errors. For greater accuracy, avoid using directly
after 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 product 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 multiple locations with greatly differing temperatures.
This may cause inaccurate measurements. Allow the product to stand for at least
2 hours before using if it is moved to a new location with a temperature difference
of 36°F/20℃ or more.
Always hold both arms straight down when taking measurements to prevent measurement
errors such as undermeasurement of body fat.
Bare feet should be placed correctly on the electrode platform.
Place arms straight down during measurement.
Use in a stable location.
Errors in measurements may occur when the product is used in an unstable location.
Prohibited
Required
For Your Safety (Continue)
6
Scheduled Maintenance
TANITA recommends that each facility conduct periodic checks of each unit.
1. Check the following at least daily:
•The unit is on a stable and level surface i.e. on a firm flooring, not on a thick carpet
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, etc.) for wear or damage
3. Visually inspect the following at least monthly:
Update settings, replace items, or call for service as necessary according to the results of the
visual inspections. Do not use the unit if you see any signs of damage. Product that has
been damaged must be checked for proper operation by qualified personnel before using
again.
Required
Part Names & Accessories
7
Instruction manual
(this book)
AC adapter
Accessories
Display
Front Back
Scale side
Floor side
Correct direction
Adjustable feet
Platform
Battery Box
The correct direction of the adjustable feet
Electrode
If the adjustable feet came off, attach these in the direction
of the following figure.
The product will not work if attached incorrectly.
8
Names and Functions of Display Panel & Operation Keys
Symbols and Their Meanings
Meanings of the Display Panel & Operation Keys
Alternating current
Class II Equipment
Polarity of a battery
Input, Output
WEEE - Waste Electrical and
Electronic Equipment Directives
Caution. Refer to the
attached information
Manufacturer
(Data of manufacture)
See the instructions
Direct current
Type BF applied part
Polarity of DC power
connector
Serial number
For indoor use only
NET Indicates that the clothes weight is input
Step On Indicates that the measuring start
Height Indicates that the height is input
Age Indicates that the age is input
Weight Lock Mode Indicates that the Weight Lock function is activated
Weight Lock Indicates that the Weight is locking
Weight Only Indicates that the Weight Only (Scale) Mode
Power ON Power OFF
Clear input value
Confirm the entered value
Female
Value down
Male
Value up
Reset zero point
Athletic mode
Select measurement mode
Set preset tare value
(Clothes weight)
9
Using batteries
Using the AC adapter
Preparation
Required
• Please change the batteries LR6 (AA) carefully to
avoid dropping them on your feet.
• Ensure that the batteries are inserted with the
correct polarity/. If the polarity is incorrect,
then the batteries may leak and damage the
product.
• When not in use for a long time, remove the
batteries before storing the product.
• is displayed when battery power is running
out.
Promptly replace with six new batteries.
Required
• This product must be used with the
designated AC adapter.
• Please observe the following instructions
for accurate measurement. Measurement
may not be possible on the unstable
environment. During weight measurement,
please don’t touch any connecting cable
such as an AC Adapter cable and PC
communication cable to avoid causing
unstable scale installation.
• Do not use old batteries together with new
batteries, or a mix of different types of batteries at
the same time.
• Do not replace with wet hands. Do not allow
water to contact or spill on the battery box.
Prohibited
(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.
10
Power Supply
When turn on the power
Emergency Shutdown
When using the AC Adapter
When using the batteries
Press to turn on the power.
Press to turn off the power.
When turn off the power
Pull out the batteries or AC adapter in case of an emergency.
For emergency, keep clear around the outlet during operating this product.
11
Press to turn on the power.
Various Settings
2
Call up the setting mode
Press for 1 second.
1
Press to turn the power off.
5
SET 0 is displayed.
4
Input the setting value by using or .
3
Select the setting items by using or .
Press .
Press .
SET 1
Set ON/OFF of the beep sound.
SET 0
Check the software version.
(0: off, 1: on, default: 1 on)
SET 2
Set ON/OFF of the athlete selection.
(0: off, 1: on, default: 1 on)
SET 3
Set the automatic determination time when inputting.
(input range 09 seconds, default: 5 seconds)
* “0” automatic determination function deactivate.
SET 4
Set the automatic power off time.
(0, 5, 10, 30, 60 minutes, default: 5 minutes)
* “0” automatic power off function deactivate.
SET 5
Set the unit.
(0: kg, 1: lb, default: 1 lb)
Press to turn on the power.
12
How to Use (Mode Selection)
1
2
Model name is displayed.
is displayed.
The product will be booted by
Body Composition Mode.
Select the mode by .
3
Press .
Body Composition Mode ( P.13) Scale Mode ( P.16)
Scale: Weight Lock Mode ( P.17)Scale: BMI Mode ( P.18)
Press to turn on the power.
13
How to Use (Body Composition Mode)
2
Check that the Body Composition
Mode is selected ( P.12).
3
Input the clothes weight by using or .
4
Select the body type and gender by
using or .
1
*
è
clear the input.
Press .
*
è
clear the input.
Press .
How to Use (Body Composition Mode)
(Continue)
14
5
Input the height by using or .
6
Input the age by using or .
*
è
return to previous status.
Press .
*
è
return to previous status
Press .
How to Use (Body Composition Mode)
15
7
8
Step on the platform with bare feet,
after "Step On" flashing.
Measurement completion.
<Body fat %> <Body weight>
<BMI>
<Total body water %>
*
, return to previous status.
è
How to Use (Scale Mode)
16
2
Select the Scale Mode.
Check that the "Weight Only" lights up
( P.12).
3
Input the clothes weight by using or .
1
4
5
Step on the platform, after "Step On" flashing.
Measurement completion.
Press to turn on the power.
*
è
return to previous status
Press .
How to Use (Scale: Weight Lock Mode)
17
2
Select the Scale: Weight Lock Mode.
Check that the "Weight Only"
"Weight Lock Mode" lights up ( P.12).
3
1
Activation of Weight Lock Mode
4
5
Measurement completion.
*
è
Clear the displayed result.
Input the clothes weight by using or .
Step on the platform, after "Step On" flashing.
Press to turn on the power.
*
è
clear the input.
Press .
18
How to Use (Scale: BMI Mode)
2
Select the Scale: BMI Mode.
Check that the "BMI" is displayed ( P.12).
3
Input the clothes weight by using or .
4
1
Input the height weight by using or .
5
6
Step on the platform, after "Step On" flashing.
Measurement completion.
Pressto turn on the power.
è
Clear the displayed result.
,
*
*
è
clear the input.
Press .
*
è
return to previous status
Press .
19
Troubleshooting
- Please check the following before asking for repair.
Is it installed at a place with vibrations?
Is the platform inclined?
Keep the platform horizontal.
Is anything caught in the gaps of the
platform?
Remove anything caught in the gaps.
The measured weight is
not stable.
Symptom Please check
How to
measure
Zero point error
Impedance
measurement error
Measure with bare feet.
Check the input information.
Nothing is displayed even
after turning on the power.
is displayed.
Check that the power supply is connected
correctly.
The weight to measure exceeds the
measurement range.
If the soles of your feet are dry, use a
dropper to drop about 0.5mL of water on
the electrodes before measurement.
Turn off the power, and remove the items
on the platform and turn on the power
again, and then redo the measurement.
In the 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.
Note
Display
Technical Notes
20
Body composition measurement by the BIA method.
- 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 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.
Body composition measurement
results obtained by DXA
(Lunar Co., Ltd; DPX-L)
- 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.
- Introduction
This equipment provides estimated values for each measured value of body fat percentage, fat mass,
fat-free 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.
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in altre lingue
- English: Tanita DC-240 Owner's manual
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