User Manual
Body Fat Analyzer GBF-1144-B
version:1.0
FCC ID: OU9GBF1144-B
ZHONGSHAN LIFESENSE ELECTRONICS CO., LTD
23,Jin'an Road, Minzhong, Zhongshan, 528441, Guangdong, China
TEL:86-760-88282982 www.transtek.cn
Thank you very much for selecting the Transtek Body Fat Analyzer
GBF-1144-B.
Please do read the user manual carefully and thoroughly so as to ensure
the safe usage of this product, and keep the manual well for further
reference in case you have problems.
Safety Information
Safety and Usage Information
Your Scale and Its Environment
Efficient Use of Your Scale
Overview
Device Components
LCD Display
Initial Start-Up
General Instructions
Insert the Batteries
Install App and Pair-up
Start Measuring
Select Measurement Unit
Daily Measurement
Data Transmission
Data Transmission
Troubleshooting
Error Prompt
When Measuring ...
When Data Transmitting...
Specifications
Maintenance
Warranty
Appendix
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Table of Body Fat Level
Health Tips – About Body Fat
EMC Guidance
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Table of Contents
Table of Contents
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11-12
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17-21
1
Safety Information
Safety Information
Safety and Usage Information
The warning signs and symbols are essential to ensure your correct and safe use of
this product and protect you and others from injury. Please kindly find the meanings of the
warning signs and symbols, which you may encounter in the label and user manual, as
follows:
Symbol for “THE OPERATION
GUIDE MUST BE READ”
The Bluetooth Combination Mark
Symbol for “TYPE BF APPLIED
PARTS”
Symbol for “SERIAL NUMBER”
Symbol for “MANUFACTURE
DATE”
Symbol for “MANUFACTURER”
Symbol for “DIRECT CURRENT”
Symbol for “ENVIRONMENT
PROTECTION – Waste electrical
products should not be disposed of with
household waste. Please recycle where
facilities exist. Check with your local
authority or retailer for recycling advice”
INDICATIONS FOR USE
The Transtek Body Fat Analyzer measures weight , and uses bio-electrical impedance analysis
(BIA) technology to estimate body fat, total body water percentage, bone mass, and muscle mass
in generally healthy children 10-17 years old and healthy adults.
It is intended for use in the domestic setting only.
CONTRAINDICATIONS
1. This device is contraindicated for any female subject who may be suspected of, or is pregnant.
Besides provided inaccurate readings, the affects of this device on the fetus are unknown.
2. This device is contraindicated for any person who is connected to a wearable or implantable
electronic device or instrument such as a pacemaker or defibrillator.
Your Scale and Its Environment
To ensure your safety as well as the service life of your scale, please avoid using
the scale under the following circumstances:
Slippery floor such as tile floor
CAUTION
The Body Fat Analyzer GBF-1144-B offers you a seamless way to manage your health. Please
be aware that this device is designed for adults’ self-measuring and self-monitoring body fat
level. Any information provided by this device is in no way meant to treat, cure or prevent any
disease or illness from happening. This device should not be used by anyone who is acutely or
chronically ill, suffering from a disease or taking medications that affect your water levels. The
accuracy of readings for these patients has not been verified. Specific medical advice should be
obtained from a physician.
Before diet and exercise, you must first find a professional medical guide.
The body fat analyzer is equipped with data transmission function. It may emit electromagnetic
energy so as to perform its intended function. Nearby portable and mobile RF communications
equipment can affect the performance of the device .
Portable and mobile RF communications equipment can affect the measuring accuracy of the
body fat analyzer.
Kindly note that the use of accessories, transducers or cables other than those specified, with
the exception of transducers and cables sold by the manufacturer as replacement parts for
internal components, may result in increased EMISSIONS or decreased IMMUNITY of the
device.
Be aware that misuse of electrical equipments can cause electric shock, burns, fire and other
hazards.
Please do not use the device in flammable gas environment.
Warning that the body fat analyzer should not be used adjacent to or stacked with other
equipment.
Manufacturer will make available on request circuit diagrams, component parts list,etc.
WARNING:No modifications of this equipment is allowed.
During using the analyzer, the patient will contact with the surface and the electrode of the
Analyzer. The surface and the electrode of the analyzer is type BF Applied part.
The device doesn’t need to be calibrated in five years lifetime.
Do not touch the output of batteries when using the analyzer.
The patient is an intended operator. The patient can perform all the operations in the manual,
such as measurement, data transmitting, changing batteries.
2 3
Jumping onto the platform immediately after bath or with wet feet
Near a cell phone or microwave oven
Avoid storage in the following locations:
Where there is water
Where the device may be exposed to extreme temperatures, humidity, moisture, direct
sunlight, dust, or salt air
Where there is risk of shock or drop
Where you store chemicals or full of corrosive gases
Where in reach of the infants or children
Efficient Use of Your Scale
To ensure the accuracy of measurement, please follow below instructions when
you start measurement.
Place the scale on a flat, hard surface. Soft surface such as carpet will affect the
performance of the scale.
Step onto the platform with bare feet. Stand still and keep full contact with the scale until
the measurement is complete.
Start measurement at least two hours after Getting up or Dinning.
Avoid measurement immediately after strenuous exercise, sauna or bath, drinking, and
dinning.
Always start measurement in the same time slot and on the same scale located on the
same flat, hard surface.
Overview
Overview
Device Components
LCD Display
UNIT Button
Battery Compartment
LCD Display
Pending to transmit to wireless
wellness system
Stone
List
1. Body Fat Analyzer GBF-1144-B
2. Three AAA-size Batteries (1.5V per each)
3. User Manual
Data Transmitting Pound
Bioelectrical Impedance Analysis
Low Battery
Kilogram
4 5
Initial Start-Up
Initial Start-Up
General Instructions
Transtek Body Fat Analyzer GBF-1144-B applies BIA (Bio-impedance Analysis)
technology. A small amount of weak current flows through the human body so as to detect
the bio-impedance and estimate body fat. The electrical current is small and may not be
felt.
This BIA technology is cheap, safe, non-invasive, toxic-free and harmless. It also
possesses the characteristics of simple operation and abundant information.
The current mentioned above is less than 0.5mA. However, please be aware that anyone
with an wearable or implantable medical electronic instrument, such as a pacemaker, must
avoid using this device.
The intended use of this device is for healthy children 10-17 years old and healthy adults.
Insert the Batteries
Open the battery door in the back of the scale.
Insert the batteries (3 x 1.5V AAA) into the battery
compartment according to the polarity indications
marked inside the compartment.
* The digits “8888” will be shown on the LCD.
Close the battery door and wait until the digits
“0.0kg” are shown on the LCD.
Install the App and Pair-Up
With the advanced Bluetooth 4.0 technology applied, the mobile or portable equipments,
which are equipped with Bluetooth function in line with BLE Technical Specifications as
well as BLP Protocol established by global organization Bluetooth SIG, are capable to
receive your personal health data.
Just simply install the specially-designed app and pair up your scale with your mobile or
portable equipments. Then you may enjoy the comprehensive health solution provided by
Transtek.
Note: It is only available for the device which supports Bluetooth 4.0 technology.
Turn on Bluetooth and the App. Make sure both are ON when pair-up is proceeding.
Press and hold “UNIT” button in the back of the scale to start pair-up.
Symbol and symbol will be shown on the LCD alternatively, indicating pair-up
is proceeding.
If SUCCEED, symbol will be shown on the LCD.
CAUTION
When the symbol appears, the device will power off in three seconds. Then you shall replace with a
new set of batteries. Please replace all three batteries at the same time. Do NOT mix the old batteries
with the new one.
Worn batteries are hazardous waste. Do NOT dispose of them together with the household garbage.
Please refer to the local ordinances and recycling instructions regarding disposal of the worn batteries
and scrapped device. Do not dispose of electrical appliances as unsorted municipal waste, use separate
collection facilities. Contact you local government for information regarding the collection systems
available. If electrical appliances are disposed of in landfills or dumps, hazardous substances can leak
into the groundwater and get into the food chain, damaging your health and well-being.
If you do not intend to use this unit for a prolonged period of time, it is advisable to remove the batteries
before storing.
6
If FAIL, symbol “E1” will be shown on the LCD.
7
Initial Start-Up
Start Measuring
Select Measurement Unit
With batteries correctly installed, press “UNIT” button in the back of the scale to select
measurement unit. The default measurement unit is “kilogram”. You may press “UNIT”
button to choose among kilogram, stone and pound.
Daily Measurement
With original SENSE ON patent technology, GBF-1144-B
will automatically switch on as you step on the platform
barefooted.
Stand still and keep full contact with the electrodes until
the LCD displays the weight and stops blinking the unit.
When the weight is locked, the symbol “BIA” blinks, indicating the Bioelectrical Impedance
Analysis is proceeding.
If the Bioelectrical Impedance Analysis measurement is sucessful, the symbol “BIA”
will remain.
If it fails, the symbol “BIA” will disappear.
After the symbol “BIA”stops blinking, the symbols “ ” and “ ” light up.When your
scale is successfully paired with your smartphone and the Bluetooth is ON, it will
process data transmission automatically.
(Please refer to Data Transmission for more details.)
8
9
Data Transmission Troubleshooting
Error Prompt
Data Transmission
With GBF-1144-B successfully pair-up with your
smartphone, the measurement data will be
transmitted to your mobile via Bluetooth.
The symbol will disappear after successful data
transmission, and you may check your personal
health data stored in your smartphone.
If the data transmission fails, the symbol will
remain. The pending measurement data will be
temporarily kept in the scale and transmitted to your
smartphone when next measurement is complete.
CAUTION
Interference may occur in the vicinity of equipment marked with the following symbol . And
the Analyzer may interfere vicinity electrical equipment.
To enable the data transmission function, this product should be paired to a Bluetooth 4.0 end.
How to mitigate possible interference?
1. The range between the Analyzer and the Bluetooth end should be reasonably close, from 1
meter to 10 meters. Please ensure no obstacles between the Analyzer and the Bluetooth end
so as to obtain quality connection.
2. To avoid interference, other electronic devices (particularly those with Bluetooth transmission
/ Transmitter) should be kept at least 1 meter away from the Analyzer.
Data transmitting
Data transmitting to
wireless wellness system:
-If SUCCEED, the symbol
disappears;
-If FAIL, the symbol
remains.
Error Description Solution
Overload. The device will
power off.
Low Battery. The device
will power off in three
seconds.
Failure of pairing up .
There has data doesn’t
upload. (The notebook
icon will be displayed.)
Stop using this scale for
measurement.
Replace all three batteries at
the same time. Please purchase
the authorized batteries for
replacement.
Please check below items:
-Bluetooth is ON.
-App Collector is ON.
-Both devices are within the
transmission distance of Bluetooth.
Upload the data.
When Measuring ...
Problem Root Cause Solution
Abnormal
measuring results:
- Too high; OR
- Too low; OR
- Huge difference
between two recent
measurement.
Incorrect posture
The device is located on
the soft ground such as a
carpet OR on a rugged
surface.
Please step on the platform
barefooted and stand still.
Please place the device on a
flat, hard surface.
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Troubleshooting Troubleshooting
When Data Transmitting ...
Problem Root Cause Solution
Problem Root Cause Solution
Abnormal
measuring results:
- Too high; OR
- Too low; OR
- Huge difference
between two recent
measurement.
Your feet are too dry.
Wipe your feet with a damp
cloth, keeping them slightly damp
when starting measurement.
Data transmission
failed.
Bluetooth is OFF.
App is OFF.
Turn ON the Bluetooth via
the Settings.
Press the icon to run your
App.
No display on
LCD when the
device powers on.
CANNOT proceed
to analyze body fat
The device
powers off.
Batteries not yet installed.
Worn batteries.
Step onto the platform
wearing socks or shoes.
Low battery.
Install the batteries.
(Please refer to Insert the
Batteries)
Replace all three batteries at the
same time. Please purchase the
authorized batteries for
replacement.
Please keep barefooted during
the measurement, and keep full
contact with the electrodes as
well.
Replace all three batteries at the
same time. Please purchase the
authorized batteries for
replacement.
Out of range of Bluetooth
transmission.
Place your smartphone closer
to the scale.
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Specifications Maintenance
Specifications
Product Name
Dimension
Net Weight
Display
Measurement Unit
Measurement Range
Division
Accuracy
Working Environment
Storage and Transport
Environment
Power Source
Turn on Method
Auto-OFF
Accessories
Mode of Operation
Degree of protection Type BF applied part
Software Version A04
Protection Against
Ingress of Water
About the Accuracy of This Product
This product passes strict inspection before delivery and therefore its accuracy is guaranteed by the manufacturer.
Please refer to the above table for the descriptions on accuracy.
This product is specially designed for body fat analysis as well as weight measurement. It should NOT be used by
anyone during the process of transaction for verification of goods’ weight.
Body Fat Analyzer
Scale: 310x306x27.6mm (Approximately)
Approximately 1.572kg ( Excluding the dry cells)
Digital LCD
Kilogram / Stone/ Pound
5kg to 150kg /0st: 11lb to 23st: 8lb/ 11lb to 330.6lb
0.1kg / 0.2lb/1lb (≥20st)
50kg: ±0.3kg;
100kg: ±0.4kg;
150kg: ±0.5kg;
Temperature: 5℃ to 40℃
Relative Humidity: ≤90% RH
Atmospheric pressure: 86kPa to 106kPa
Temperature: -20℃ to 60℃ Relative Humidity: ≤90% RH
Atmospheric pressure: 50kPa to 106kPa
4.5V (Three AAA-size Batteries)
SENSE ON technology
About 60s for the first time after being installed batteries and
showing 0.0;
About 10s for other times when it showing 0.0;
About 15 seconds when the weight data is unstable.
1. Three AAA-size Batteries
2. User Manual
Continuous Operation
IP21
Maintenance
When carrying out usual maintenance, please ensure practice of the following Do’s and
Don’ts:
DO use a dry soft cloth to wipe the dust.
DO use a wet soft cloth, dipped into water and wrung out, to wipe the dirt. Then use a
dry soft cloth to dry up the device.
DON’T wash the device with water or immerse it in water.
DON’T use propellant, abrasive or other chemicals to wipe the dirt in avoidance of
discolor or malfunction.
DON’T disassemble this device. If you have any problems, please contact Transtek.
(Please refer to Warranty for contact information)
Warranty
Transtek warrants its products free of defects in materials and workmanship in normal
use for a period of FIVE years from the date of retail purchase.
This warranty does NOT cover damages caused by misuse or abuse, including but not
limited to:
Failure caused by unauthorized repairs or modifications;
Damage caused by shock or drop during transportation;
Failure caused by improper operation inconsistent with the instructions stated in this user
manual;
Malfunction or damage from failure to provide the recommended maintenance;
Damage caused by improper use of power supply.
Should this device require maintenance (or replacement at our option) under warranty,
please deliver the original package to ZHONGSHAN LIFESENSE ELECTRONICS CO.,
LTD prepaid. Please return the store receipt (with the retail purchase date) and a note
with reasons to return on it as well.
ZHONGSHAN LIFESENSE ELECTRONICS CO., LTD
23,Jin'an Road, Minzhong, Zhongshan, 528441, Guangdong, China
Tel: 86-760-88282982
Website: http://www.transtek.cn
1514
Appendix Appendix
FCC Regulations
FCC User Guide Information
Radio Frequency Interface Requirements - FCC
Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
Reorient or relocate the receiving antenna;
Increase the separation between the equipment and receiver;
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected;
Consult the dealer or an experienced radio / TV technician for help.
Radio Transmitters (Part 15)
This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired
operation.
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
FCC RF Exposure Guidelines
Safety Information
Reducing RF Exposure - Use Properly
Only operate the device in accordance with the instructions supplied.
This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
Table of Body Fat Level (Unit: %)
a) The body fat percentage (%): 5%-60%/0.1%
Standard for Men
Rating
20-29
low
Normal
Moderately High
High
Source: University of Illinois Department of Food Science and Human Nutrition.
Body Fat Percentage Calculator.
<13
13-20 14-21 16-23
20.1-23 21.1-24 23.1-26 24.1-27 25.1-28
>23
Age
30-39 40-49 50-59 60+
<14 <16
>24
<17
17-24
>26 >27
Standard for Women
Rating
<18
low
18-25
Normal
Moderately High
>28
High
Age
20-29
30-39 40-49 50-59 60+
<19 <20
19-28 20-29
28.1-31
>31 >32
<21 <22 <23
21-30 22-31 23-32
29.1-32 30.1-33 31.1-34 32.1-35
>33 >34 >35
Health Tips - About Body Fat
Fat is essential for human body. It can not only store energy and protect viscera, but also
regulate body temperature and maintain normal physiological function of human body.
However, too much body fat is harmful to human body. It is always accompanied by Fatty
Liver, diabetes, coronary heart disease, etc.
Therefore self-measuring and self-monitoring body fat level are beneficial to your health.
Since we can’t judge body fat level simply by our weight, this body fat analyzer , with BIA
(Bio-impedance Analysis) technology applied, is an accurate device that offers a quick and
comfortable way to obtain your body fat level.
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Appendix Appendix
EMC Guidance
Table 2 Guidance and MANUFACTURER’s declaration – electromagnetic
Table 1 Guidance and MANUFACTURER’s declaration – ELECTROMAGNETIC
EMISSIONS- for all ME EQUIPMENT and ME SYSTEMS
Guidance and manufacturer’s declaration – electromagnetic emissions
The device is intended for use in the electromagnetic environment specified
below. The customer or the user of the device should assure that it is used in
such an environment.
Emissions test Electromagnetic environment - guidance
RF emissions
CISPR 11
RF emissions
CISPR 11
Harmonic emissions
IEC 61000-3-2
Voltage fluctuations/
flicker emissions IEC
61000-3-3
Compliance
Group 2
Class B
Not applicable
Not applicable
The device must emit electromagnetic
energy in order to perform its intended
function. Nearby electronic equipment may be
affected.
IMMUNITY – for all ME EQUIPMENT and ME SYSTEMS
Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an
environment
IMMUNITY test
Electrostatic
discharge (ESD)
IEC 61000-4-2
Electrical fast
transient/burst
IEC 61000-4-4
Surge IEC
61000-4-5
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Power frequency
(50/60Hz)
magnetic field
IEC 61000-4-8
NOTE U
IEC 60601 test level Compliance level
±6 kV contact
±8 kV air
±2 kV for
power supply lines
±1 kV for
input/output lines
±1 kV line(s)
to line(s)
±2 kV line(s)
to earth
<5% U
T
(>95% dip in UT)
for 0.5 cycle
40% U
T
(60% dip in UT)
for 5 cycles
70% U
T
(30% dip in U
T
for 25 cycles
<5% U
T
(>95% dip in UT)
for 5 s
3A/m
T
is the a.c. mains voltage prior to application of the test level.
)
±6 kV contact
±8 kV air
Not applicable
Not applicable
Not applicable
3A/m
Electromagnetic
environment - guidance
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment.
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of
the device requires
continued operation during
power mains interruptions,
it is recommended that the
device be powered from an
uninterruptible power supply
or a battery.
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
18
19
Appendix Appendix
Table 4 Guidance and MANUFACTURER’s declaration – electromagnetic IMMUNITY –
for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environment specified below.
The customer or the user of the device should assure that it is used in such an environment.
IMMUNITY test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects
and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular /
cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic site
survey should be considered. If the measured field strength in the location in which
the device is used exceeds the applicable RF compliance level above, the device
should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the device.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than
V
[ ]V/m.
1
IEC 60601
TEST LEVEL
3 Vrms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
Compliance
level
Not applicable
3 V/m
Electromagnetic environment guidance
Portable and mobile RF communications
equipment should be used no closer to
any part of the device, including
cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance
5,3
P
=d ]
[
V
1
P=d
80 MHz to 800 M Hz
1.167
P=d 2.333
where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and d is the recommended separation
distance in metres (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey, should be
less than the compliance level in each
frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
800 MHz to 2,5 G Hz
a
b
1
Table 6 Recommended separation distances between portable and mobile
RF communications equipment and the ME EQUIPMENT or ME SYSTEM –
for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
between portable and mobile RF communications equipment and the device.
The device is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the device
can help prevent electromagnetic interference by maintaining a minimum distance
between portable and mobile RF communications equipment (transmittters) and the
device as recommended below, according to the maximum output power of the
communications equipment.
Rated maximum output
power of transmitter
(W)
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (m) can be estimated using the equation applicable to
the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80MHz and 800MHz, the separation distance for the higher frequency
range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation
is affected by absorption and reflection from structures, objects and people.
Recommended separation distances
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
=d ]
[
V
Not applicable 0.117
Not applicable
Not applicable
Not applicable
Not applicable
80 MHz to 800 MHz 800 MHz to 2.5 GHz
5,3
P
1
P=d 1.167
0.369
1.167
3.690
11.67
2.333
0.233
0.738
2.333
7.378
23.33
P=d
20
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