Surpahs® DS2 Dual-S Digital Body Fat Scale
User Manual (V-2016/8)
The user manual can be downloaded through Surpahs® website at http://www.surpahs.com
Scan for shopping and support:
www.surpahs.com
QUICK START GUIDE
IMPORTANT: This scale uses BIA (Bioelectrical Impedance Analysis) to determine body fat
level, BIA sends a harmless signal through the body. It is NOT intended for children or
pregnant women, do NOT use this product anyone with an implanted medical device (such
as a pacemaker, metal plates or screws; or contraceptive devices). When in doubt, contact
your physician.
1. Remove the battery insulating strip before first use.
2. Place the scale on a hard flat surface. Avoid carpets, rug or soft, uneven surface.
3. If you would use the scale as a Weight-Only scale, for the first time to use the scale, you
may just step onto the scale to turn it on, and then step off, wait the screen to display “0.0”
and turn off, and then step on again, the screen will display your weight.
The information provided by this device is NOT meant to treat, cure, or prevent any disease
or illness. 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.
Statement of Accuracy
4. If you would use the scale as a Body Fat scale, remove socks and wipe your feet with a
damp cloth, leaving them slightly damp.
5. Press “SET” to enter Setup Mode. The Profile Number will flash on the screen. Press the
Up / Down arrow keys
and press “SET” to select a profile number.
6. Next, select your Gender.
• This device is intended for home / consumer use; it is not intended for professional use in
hospitals or medical facilities.
• Do not use the scale on a carpet, rug or uneven surface as these can cause inaccurate
results.
• This scale uses BIA (Bioelectrical Impedance Analysis) to determine body fat percentage.
BIA is considered reasonably accurate for measuring groups, or for tracking body
composition in an individual over a period of time, but is not considered sufficiently
accurate for recording of single measurements of individuals.
• As BIA is based on body water balance, your state of hydration can impact the level of
accuracy. Overall the BIA provides an inexpensive, reliable way to estimate and track
body fat level.
7. Next, set your Height.
8. Next, set your Age.
• For the most consistent and accuracy results, please do not measure within 30 minutes
after a meal or 120 minutes after an exercise. It is recommended that you measure at
the same time of the day, preferably early evening before a meal.
9. After entering your Age, the scale screen will display “0.0”. Please immediately step onto
the scale before it turns off and remain your body still. The scale will save your weight
in your profile, and then display your body fat, water, muscle, and bone ratios, which you
can write down to track. You do not have to remain standing on the scale, it will turn off
automatically. You may click the “UNIT” button located on the back of the scale to switch
display unit between Kilograms (kg) and Pounds (lb).
• Do not compare weight readings from one scale to another as some differences will exist
due to manufacturing tolerances.
Next time when you stand on the scale, it will identify your profile automatically according to
its stored weight information.
SPECIFICATIONS/FEATURES
• Do not use your Doctor's scale reading as "accurate" reference to determine the accuracy
of your scale, as it is not the right way to test the scale accuracy. The best way test scale
accuracy would be using 50 kg+ (110 lb+) standard Olympic weight bars on the scale.
• It should be used in a consistent manner for the most accurate readings. While readings
of this monitor might be different than that of other scales (hydro-densitometry or hand
held calipers), your changes in body fat percentage shown by this scale will be reflected
accurately.
• If you weigh yourself twice and get two different results, your weight lies between the two
readings.
SCREEN/LEGEND
• Measures weight, body mass index (BMI), body fat, body water, muscle and bone mass
• Uses Bioelectrical Impedance Analysis (BIA) technology to estimate body fat, total body
water percentage, bone mass, and muscle mass in generally healthy adult (18 years of
age or older).
Dimension
280x245x23mm / 11x9.6x0.6 inches
Turn On Method
Display
Sense-ON (Stand on the platform directly)
Blue LCD with White Backlight
Weight Capacity
Weight Unit
150 kg / 330 lb
kg /lb
Weight Graduation
Body Fat Graduation
Height Range
Age Range
User Profiles
Athlete mode
Accuracy
0.1 kg / 0.2 lb
0.1% (in the range of 5% - 80%)
100-220 cm / 3’ 3.5” - 7’ 2.5”
10 - 85 years old
4 Users
Power
Auto Turn OFF
6V (4xAAA batteries)
About 10 seconds after LCD displays “0.0”
About 15 seconds after result is locked, or weight is unstable
Temperature: 0°C to 40°C / Humidity: ≤90% R
Weight
Body Fat
Storage Environment
Low battery indication
Muscle Mass
Body Water
Temperature: -20°C to 60°C / Humidity: 0%RH to 93% RH
Over load indication
Set Key
Bone Mass
2.5-50kg (5.5-110lb):
±0.3kg (0.66 lb)
50-100kg (110-220lb): ±0.4kg (0.88 lb)
100-150kg (220-330lb): ±0.5kg (1.10 lb)
Working Environment
Up Key
Kcal
Male
Stature
Female
Age
Centimeter
Kilogram
Foot
Pound
Percentage
Low Battery
Basal Metabolic Rate
HOW DOES THE BODY FAT SCALE WORK?
Down Key
UNIT Button
Electrode
Battery Compartment
Electrode
LCD Display
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 Surpahs® DS2 Body Fat
Scale, with BIA (Bio-impedance Analysis) technology applied, is an accurate device that
offers a quick and comfortable way to obtain your body fat level.
This Surpahs® DS2 Body Fat Scale uses Bio Impedance Analysis (BIA) technology which
passes a small electrical current through the body to estimate body fat mass, total body
water, muscle mass, and bone mass. The electrical current is very small and may not be
felt. Contact is made with the body via four stainless steel pads on scale.
BATTERY
SETUP USER PROFILE
• Uses 4 x AAA batteries
• Make sure the + and – sides of the batteries are aligned correctly.
• Replace batteries when the low battery indicator “Lo” is shown.
If you would use the scale as Weight-Only scale, you may skip this section and refer to the
instructions in “USING THE SCALE AS WEIGHT-ONLY SCALE” section.
You are recommended to setup your profile before the first use, as this eliminates the needs to
enter it again for each time you take a measurement.
When batteries are inserted, the screen will display “8888”.
This scale can store up to 4 user profiles (identified as P1 to P4) in memory.
1. Remove socks and wipe your feet with a damp cloth, leaving them slightly damp.
2. Press “SET” to enter Setup Mode. The Profile Number will flash on the screen. Press the
Up / Down arrow
and press “SET” to select a profile number.
Wait until the screen display “0.0”, and it is ready to use.
3. Next, Gender icon
is blinking, select your Gender.
UNIT SELECTION
• Default displaying unit is “lb” (pound)
• To change displaying unit, press the UNIT button locate on the back of the scale, and you
can choose UNIT from kg or lb.
4. Next, set your Height.
INITIALIZATION/ CALIBRATION
NOTE: To ensure measuring accuracy, this initialization process must be done at anytime
the scale is moved to another place, or batteries are changed.
5.Next, set your Age.
1. Step one foot onto the platform to turn it on and then step off.
2. “0.0” will be displayed.
6.After entering your Age, the scale screen will display “0.0”. Please immediately step onto
the scale before it turns off and remain your body still. The scale will save your weight
in your selected profile, and then display your Body Fat, Total Body Water, Muscle Mass,
Bone Mass, Kcal and Weight.
3. The scale will switch off and now is ready to use.
This completes the programming of your profile. The next time you use your scale, it will
identify your profile by comparing your current weight with the stored weight.
4.Wipe your feet with a damp cloth, leaving them slightly damp, step onto the scale to turn it on.
Note: If your weight changes by +/-2 kg (+/-4.4lb) or more, the scale may have trouble
identifying your profile. It is recommended that you re-configure your profile.
USING THE SCALE AS WEIGHT-ONLY SCALE
If you just need to measure body weight only, under this WEIGHT-ONLY mode, your
Surpahs® Body Fat Scale will operate as a conventional weight-reading scale, there
are no special programming steps are required.
5.Stand still and keep fully contact with the 4 stainless steel electrodes until the screen stop
displaying the moving “o”.
Once the scale is initialized, as previously described, you may simply step on the scale
to turn it on and measure your current weight only.

1. Place the scale on a flat, hard surface. Carpeted or uneven floors may affect accuracy.
2. Step onto the scale platform and remain still while the scale computes your weight.
3. The scale displays your weight.
4. The scale will automatically turn off in about 10 seconds if there is no operation.
6.It automatically identifies a programmed profile (P1-P4). And then displays your Body Fat,
Total Body Water, Muscle Mass, Bone Mass, Kcal and Weight two times in sequence. You
can write down to track. You do not have to remain standing on the scale, it will turn off
automatically.
USING THE SCALE AS BODY FAT SCALE
1.If you haven’t programmed a user profile, please follow the instructions in “SETUP USER
PROFILE” section to complete the setup.
2.If it is the first time use or has been moved from one place to another, please follow the
instructions in “INITIALIZATION/ CALIBRATION” to initiate the scale.
3.For the most consistent and accuracy results, please measure at the same time of the day,
and do not measure within 30 minutes after a meal or 120 minutes after an exercise.
NOTE:
If your weight changes by +/-2 kg (+/-4.4lb) or more, the scale may have trouble identifying
your profile. It is recommended that you re-configure your profile.
2. It is recommended to measure body fat and weight daily at the same.
3. Use this product without clothing for best accuracy. Clothes can vary in weight and affect the
calculation.
4. Feet must be bare and clean. For best results, they should also be slightly damp.
If one or more other user’s stored weight is within +/-2kg (+/-4.4lb) of your weight, the scale is
unable to determine which one is your profile, and it will display a choice of profile numbers ,
you can then use the Up / Down arrow keys to confirm the correct profile. Upon confirming, it
will display the results two times in sequence. If no profile is confirmed, it will automatically
turn off after a few seconds.
Press (▲ ) to ch oose P1
Press (▼ ) to choose P2
If there is no profile matched, it will just go with the "WEIGHT-ONLY" mode, and displays your
weight only.
Reference:
University of Illinois Department of Food Science and Human Nutrition.
Body Fat Percentage Calculator.
www.ag.uiuc.edu/~food-lab/ai/bfc.html
TOTAL BODY WATER (TBW)
You must wait several hours before taking a body fat analyze when: Drinking coffee or
alcohol, taking diuretic medications, or exercising. These all affect your level of hydration and
the accuracy of your body fat analyze.
BODY FAT
Normal healthy range of total body water (TBW) percentage table:
1. Ideal body fat content is NOT the same for all people. Age, sex, and heredity are variables in
this measurement. The table below is a general guide. Consult your physician to determine
what is most ideal for you.
% Body Fate Range
Male
Rating
Men
Age
Normal % TBW Range
4 to 14%
70 to 63%
15 to 21%
63 to 57%
22 to 24%
57 to 55%
20-29
30-39
40-49
50-59
60+
25 and over
55 to 37%
Low
<13
<14
<16
<17
<18
4 to 20%
70 to 58%
Normal
14-20
15-21
17-23
18-24
19-25
21 to 29%
58 to 52%
Moderately High
21-23
22-24
24-26
25-27
26-28
30 to 32%
52 to 49%
High
>23
>24
>26
>27
>28
33 and over
49 to 37%
Female
Rating
Age
20-29
30-39
40-49
50-59
60+
Low
<19
<20
<21
<22
<23
Normal
20-28
21-29
22-30
23-31
24-32
Moderately High
29-31
30-32
31-33
32-33
33-35
High
>31
>32
>33
>34
>35
Women
Body water measurement results are influenced by the proportion of body fat and muscle. If the
proportion of body fat is high, or the proportion of muscle is low, then the body water results will
tend to below.
It is important to remember that measurements such as body weight, body fat and body water
are tools for you to use as part of your healthy lifestyle. Since short term fluctuations can be
normal, we suggest that you chart your progress over time, rather than focus on just a single
day’s reading. Consult your physician to determine what is most ideal for you.
Reference:
Derived from Wang & Deurenberg: “Hydration of fat-free body mass”. American Journal
Clin Nutr 1999,69833-841.
MUSCLE MASS
MAINTENANCE AND CARE
Muscle mass is important in determining a healthy body composition. A person with a higher
% of muscle mass finds it easier to move, but needs more energy to do it. Exercise is very
important in maintaining a healthy body and the muscle mass % is a useful indicator to control
it. The normal muscle mass percentage on the body weight lies between 38% and 54% for
men and between 28% and 39% for women depending on age and physical activity level.
• The product is intended for home / consumer use only; it is not intended for professional use
in hospitals or medical facilities.
Reference: International Commission on Radiological Protection,1975
The bone mass readings given by this scale are estimation of the amount of bone in your body.
Individuals with osteoporosis or low bone densities may not get accurate. If you have any
concern regarding your bones, please consult your doctor.
Men
Women
• Never use detergents, excess water, treated cloths, harsh cleaning agents, or sprays.
• Do not immerse scale in water.
BONE MASS
• Treat your scale with care to ensure the best performance. It contains sensitive electronic
parts. Avoid rough treatment. Do not jump on, drop or kick the scale.
• Do not attempt to lubricate, disassemble, or open the scale casing as this will void warranty.
• Always weigh yourself on the same scale placed on the same floor surface.
• Do not compare weight readings from one scale to another as some differences do exist due
to manufacturing tolerances.
Bone Mass
Weight
• Clean exposed parts with a soft, slightly, damp cloth. To remove stains, use a mild soap.
Less then 143 lb
5.9 lb
143 lb - 209 lb
7.3 lb
209 lb and up
8.1 lb
• It is recommended that you measure at the same time of the day, preferably early evening
before a meal, for the most consistent results.
Less then 110 lb
4.3 lb
• Your scale rounds up or down to the nearest increment.
110 lb - 165 lb
5.3 lb
• If you weigh yourself twice and get two different results, your weight lies between the two.
165 lb and up
6.5 lb
• Place your scale on a hard even floor to ensure the greatest accuracy and consistency.
• Do not dispose of batteries in fire. Batteries may explode or leak. Remove batteries from the
scale if it will not be used for a long period.
KCAL
Kcal stands for Kilo-Calories, it tells you how much Kilo-Calories you need to consume each
day to keep your body weight not gaining or losing.
• Do not store the scale where you store cleaning chemicals. The vapors may affect the
electronic components of your scale. Do not store the scale on its side.
• Store your scale in a clean, dry location at room temperature. Dust, dirt, and moisture from
humidity can accumulate on the weighing sensors causing inaccuracy or malfunction.
• To prevent battery drainage, do not store anything on the scale.
TROUBLESHOOTING
FCC REGULATIONS
1. You must have bare feet to take measurements. In order to get the most accurate and
Consistent results, wipe your feet with a damp cloth, leaving them slightly damp before
stepping on the scale. Repeat measurements again, maintaining maximum contact between
your feet and metal sensors.
This device complies with part 15 of the FCC Rules. Operation issue 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.
2. The condition of the skin on the bottom of your feet can affect the results. The natural effects
of aging activity can make the skin hard. Take the reading with clean and slightly damp feet
for best accuracy.
APPENDIX
Issues
Cause
Solution
Overload. The scale will turn off
in a few seconds.
Stop using the scale for this
measurement, or it will damage the
G-Sensors.
Low battery. The scale will turn
off in 4 seconds.
Replace with new batteries
Abnormal measuring
results:
- Too high;
- Too low;
- Huge difference
between recent
measurements
Cold electrodes
Either your hands or your feet
are too dry.
Place the scale in a warm room for a
while before measuring
Wipe your feet with a damp cloth, keep
them slightly damp when measuring.
After standing on the
scale, the LCD
doesn’t light up
1. Batteries are exhausted.
2. Batteries are not installed
properly
Replace with new batteries.
Install the batteries properly
Nothing display on
the screen when the
device is power on
Batteries are not installed or
improperly installed.
Install batteries properly
Batteries are exhausted.
Replace all the 4 batteries with new.
Can not process
analyze on body fat,
total body water,
muscle mass, bone
mass and kcal
Step onto the platform with
socks or shoes wearing
Please keep barefooted during
measurement, and keep your foot
contact with the electrodes
The scale can not identify a
possible Profile with most
similar weight
Please choose a Profile ID following the
instruction in “SET-UP PROFILE”
section
The user fails to select a Profile
from what the scale found
Please choose a Profile ID following the
instruction in “SET-UP PROFILE”
section
Low battery
Replace all the 4 batteries with new.
Emissions test
IEC 60601 test level
±6 kV contact
±8 kV air
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for
power supply lines
±1 kV for
input/output lines
Surge IEC
61000-4-5
±1 kV line(s)
to line(s)
±2 kV line(s)
to earth
Compliance level
±6 kV contact
±8 kV air
40% UT
(60% dip in UT )
for 5 cycles
3A/m
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Not applicable
<5% U T
(>95% dip in UT )
for 5 s
Power frequency
(50/60Hz)
magnetic field
Electromagnetic
environment - guidance
Mains power quality should
be that of a typical
commercial or hospital
environment.
70% UT
(30% dip in UT )
for 25 cycles
3A/m
IEC 61000-4-8
Group 1
The device uses RF energy only for its
internal function. Therefore, its RF
emissions are very low and are not likely
to cause any interference in nearby
electronic equipment.
IEC 61000-3-2
Voltage fluctuations/
flicker emissions IEC
61000-3-3
Not applicable
Not applicable
Guidance and manufacturer’s declaration – electromagnetic immunity
Not applicable
Not applicable
Electromagnetic environment - guidance
Table 4 Guidance and MANUFACTURER’s declaration – electromagnetic IMMUNITY –
for ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Mains power quality should
be that of a typical
commercial or hospital
environment.
<5% UT
(>95% dip in UT )
for 0.5 cycle
Compliance
Class B
CISPR 11
Harmonic 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
NOTE
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.
RF emissions
Guidance and manufacturer’s declaration – electromagnetic immunity
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
Guidance and manufacturer’s declaration – electromagnetic emissions
RF emissions
Table 2 Guidance and MANUFACTURER’s declaration – electromagnetic
IMMUNITY – for all ME EQUIPMENT and ME SYSTEMS
Electrostatic
discharge (ESD)
IEC 61000-4-2
Table 1 Guidance and MANUFACTURER’s declaration – ELECTROMAGNETIC
EMISSIONS- for all ME EQUIPMENT and ME SYSTEMS
CISPR 11
The scale power off
automatically
IMMUNITY test
EMC Guidance
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.
UT is the a.c. mains voltage prior to application of the test level.
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 IEC 60601
TEST LEVEL
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 Vrms
150 kHz to
80 MHz
3 V/m
80 MHz to
2.5 GHz
Compliance
level
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.
Not applicable Recommended separation distance
d=[
3 V/m
3,5
] P
V1
d = 1.167 P 80 MHz to 800 MHz
d = 2.333 P 800 MHz to 2,5 GHz
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:
NOTE 1
NOTE 2
At 80 MHz and 800 MHz, the higher frequency range applies.
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 broad-cast 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 [V1]V/m.
WARRANTY
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
Recommended separation distances
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 devicecan 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)
Separation distance according to frequency of transmitter (m)
150 kHz to 80 MHz
3,5
d=[
] P
V1
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d = 1.167 P
d = 2.333 P
0.01
Not applicable
0.117
0.233
0.1
Not applicable
0.369
0.738
1
Not applicable
1.167
2.333
10
Not applicable
3.690
7.378
100
Not applicable
11.67
23.33
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.
This product is warranted against defects in materials and workmanship for one year from the
date purchase, when used in accordance with the instructions provided. This warranty does
not cover damages or wear resulting from accident, misuse, abuse, commercial use, or
unauthorized adjustment and/or repair.
C8KE INC. shall not be liable for loss of use or any other incidental, consequential or indirect
costs, expenses or damages. There are no express warranties except as listed above. This
warranty gives you specific legal rights, and you may have other rights which vary from state
to state.
Should this product require service (or replacement at our option) while under warranty,
please visit website www.surpahs.com and submit a support ticket.
If you have any questions about this product, please visit www.surpahs.com, or scan the QR
code, find the support link.
Surpahs® , C8KE INC.
DE 19809, USA
www.surpahs.com