Charder MS 4940 User manual

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MS 4940
Medical Scale
USER MANUAL
Please keep the instruction manual at hand all the time for future reference

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TABLE OF CONTENTS
PREFACE..................................................................................................... 2
GENERAL INFORMATION....................................................................... 2
SAFETY INSTRUCTION............................................................................ 2
ENVIROMENTAL....................................................................................... 3
CLEANING.................................................................................................. 3
MAINTENANCE......................................................................................... 3
WEIGHING OPERATION........................................................................... 4
WARRANTY-LIABILITY........................................................................... 4
DISPOSING OF THE SCALE..................................................................... 5
EXPLANATION OF THE GRAPHIC SYMBOLS..................................... 5
EMC guidance and manufacturer's declaration............................................ 7
SPECIFICATION....................................................................................... 12
PANEL........................................................................................................ 13
POWER ADAPTOR STANDARDS.......................................................... 14
KEY FUNCTION....................................................................................... 14
LCD DISPLAY SYMBOLS....................................................................... 16
USING SCALE .......................................................................................... 17
USING HOLD FUNCTION....................................................................... 17
USING TARE FUNCTION........................................................................ 19
MS 4940- STORING AND RE-CALLING PRE-TARE WEIGHT........... 20
USING BMI FEATURE............................................................................. 23
MS4940 FUNCTION SET-UP................................................................... 25
PRINT function and data transmission....................................................... 26
SCALE ASSEMBLING............................................................................. 31
USING & ASSEMBLING: HEIGHT ROD- HM200D/ 201D/ 201M....... 32
INSTRUCTION FOR CHARGING AND CONNECTING...................... 33
INSTRUCTION FOR REPLACING BATTERIES................................... 34
Instruction of installing rechargeable battery............................................. 35
ERROR MESSAGE................................................................................... 36
TROUBLESHOOTING ............................................................................. 37

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PREFACE
Thank you for choosing CHARDER MEDICAL product. All features
of this product were designed to state of the art and are optimized
for simple and straightforward use. If you have any queries or
experience any problems not addressed in the operating
instructions, please contact your CHARDER MEDICAL service
partner, or visit us on the Internet at www.chardermedical.com
GENERAL INFORMATION
We strongly recommend you use the scales on flat and hard surface.
Any soft surface, like carpet will cause inaccuracy.
SAFETY INSTRUCTION
Before putting the device into use, please read with care
the information given in the Operating Instructions. They
contain important instructions for installation, proper use and
maintenance of the device.
The manufacturer shall not be liable for damages arising out of
failure to heed the following instructions:
These batteries should be kept away from small children. If
swallowed, promptly seek medical assistance.
Expected Service Life: 5 years
When using electrical components under increased safety
requirements, always comply with the appropriate regulations.
Improper installation will render the warranty null and void.
Ensure the voltage marked on the power supply unit matches
your main power supply.
This device is designed for use indoors.
Observe the permissible ambient temperatures for use
The device meets the requirements for electromagnetic
compatibility. Do not exceed the maximum values specified in
the applicable standards.
If you have any problem, please contact your local CHARDER
MEDICAL service partner.

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ENVIROMENTAL
All batteries contain toxic compounds; disposal of batteries
should be delegated to a competent organisation, complying
with the deposit of Poisonous Waste Regulation 1972.
Please do not incinerate batteries.
The optimum operating temperature for the scale is 5℃to +35
℃; although it will operate at higher and lower temperatures the
scales battery life will be adversely effected.
CLEANING
We would recommend using alcohol based wipes or similar
when cleaning the scales.
Please do not use large amounts of water when cleaning the
scales as this will cause damage to the scales electronics, you
should also refrain from using corrosive liquids or high pressure
washers.
Always disconnect the scales from the mains power supply
before cleaning.
MAINTENANCE
The scale does not require any routine maintenance. However, we
recommend checking the scale’s accuracy at regular intervals. The
regularity of these checks is dependent on the level of use and the
state of the scale. If any inaccuracies occur, please contact your
local dealer or CHARDER MEDICAL service partner.

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WEIGHING OPERATION
Before reading detailed instructions on how to use all the weighing
functions that are built into your scale, please read the following
important guidelines:
Always be sure that the display shows `Zero` before use, if it
does not then please press the ZERO key.
The device is designed to detect when a stable weight is
achieved, the indicator will `bleep` twice to indicate a stable weight
value, your reading should be taken at this point.
WARRANTY-LIABILITY
If a fault or defect is present on receipt of the unit which is within
CHARDER MEDICAL’s scope of responsibility, CHARDER shall
have the right to either repair the fault or supply a replacement unit.
Replaced parts shall be the property of CHARDER. Should the fault
repairs or replacement delivery not be successful, the statutory
provisions shall be valid. The period of warranty shall be two years,
beginning on the date of purchase. Please retain your receipt as
proof of purchase. Should your scale require servicing, please
contact your dealer or CHARDER MEDICAL Customer Service.
No responsibility shall be accepted for damage caused through
any of the following reasons: Unsuitable or improper storage or use,
incorrect installation or commissioning by the owner or third parties,
natural wear, changes or modifications, incorrect or negligent
handling , overuse, chemical, electrochemical or electrical
interference or humidity, unless this is attributable to negligence on
the part of CHARDER MEDICAL.

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 If operating, climatic or any other influences lead to a major
change in conditions or material quality, the treaty for perfect unit
functioning shall be rendered null and void. If CHARDER
provides and individual warranty, this means that the unit
supplied will be free of faults for the length of the warranty
period.
DISPOSING OF THE SCALE
This product is not to be treated as regular household waste, but
should be handed in to an electrical/electronic equipment
recycling centre.
You can obtain further details from your local council, your municipal
waste disposal company or the firm which you purchased the
product.
EXPLANATION OF THE GRAPHIC SYMBOLS
SN-T13000001
Designation of the serial number of
every device, applied at the device.
(Number as an example)
“Please note the accompanying
documents“
or
“Observe operating instructions”
Charder Electronic Co., Ltd.
No.103, Guozhong Rd., Dali Dist.,
Taichung City 412, Taiwan (R.O.C.)
Identification of manufacturer of
medical product including address

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“Type B applied part “
Dispose of old appliances
separately from your household
waste!! Instead, take them to
communal collection points.
Carefully read this operation manual
before setup and commissioning,
even if you are already familiar with
Charder scales.
Transport and storage temperature
limit indicating the upper and the
lower limit
(Transport and storage temperature
on packaging)
+60°C
-20°C

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EMC guidance and manufacturer's declaration
Guidance and manufacturer’s declaration-electromagnetic emissions
The MEDICAL SCALE MS4940 is intended for use in the electromagnetic
environment specified below.
The customer or the user of the MEDICAL SCALE MS4940 should assure
that it is used in such an environment.
Emission test Compliance Electromagnetic
environment-guidance
RF emissions
CISPR 11
Group 1 The MEDICAL SCALE
MS4940 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.
RF emissions
CISPR 11
Class B
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations
/flicker emissions
IEC 61000-3-3
Compliance
The MEDICAL SCALE
MS4940 is suitable for use in
all establishments, including
domestic establishments and
those directly connected to the
public low-voltage power
supply network that supplies
buildings used for domestic
purposes.

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Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE MS4940 is intended for use in the electromagnetic
environment specified below.
The customer or the user of the MEDICAL SCALE MS4940 should assure that it is
used in such an environment.
Immunity test
IEC 60601 test
level Compliance level Electromagnetic environment-guidance
Electrostatic
discharge(ESD)
IEC 61000-4-2
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 kV air
Floors should be wood,
concrete or ceramic tile.
If floors are covered with
synthetic material, the
relative humidity should
be at least 30%
Electrical fast
transient/burst
IEC 61000-4-4
± 2kV for power
supply lines +
1kV for
input/output
lines
± 2kV for power
supply lines Not
applicable
Mains power quality
should be that of a typical
commercial or hospital
environment.
Surge IEC
61000-4-5
± 1kV line(s) to
line(s) ± 2kV
line(s) to earth
± 1kV differential
mode Not
applicable
Mains power quality
should be that of a typical
commercial or hospital
environment.
Voltage Dips,
short
interruptions
and voltage
variations on
power supply
input lines IEC
61000-4-11
<5% UT(>95%
dip in UT) for 0,5
cycle 40%
UT(60% dip in
UT) for 5 cycles
70% UT(30%
dip in UT) for 25
cycles <5%
UT(>95% dip in
UT) for 5 s
<5% UT(>95%
dip in UT) for 0,5
cycle 40%
UT(60% dip in
UT) for 5 cycles
70% UT(30%
dip in UT) for 25
cycles <5%
UT(>95% dip in
UT) for 5 s
Mains power quality
should be that of a typical
commercial or hospital
environment. If the user
of the MEDICAL SCALE
MS4940 requires
continued operation
during power mains
interruptions, it is
recommended that the
MEDICAL SCALE
MS4940 be powered
from an uninterruptible
power supply or a
battery.

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Power
frequency(50/60
Hz) magnetic
field IEC
61000-4-8
3 A/m 3 A/m The MEDICAL SCALE
MS4940 power
frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
NOTE UT is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration-electromagnetic immunity
The MEDICAL SCALE MS4940 is intended for use in the electromagnetic
environment specified below.
The customer or the user of the MEDICAL SCALE MS4940 should assure that is
used in such and environment.
Immunity test
IEC 60601 test
level Compliance level Electromagnetic environment-guidance
Conducted RF
IEC 61000-4-6
3 Vrms
150 KHz to 80 MHz
3 Vrms
Portable and mobile RF
communications equipment
should be used no closer to any
part of the MEDICAL SCALE
MS4940 including cables, than
the recommended separation
distance calculated from the
equation applicable to the
frequency of the transmitter.
Recommended separation
distance:
d = 1,2 √P
d = 1,2 √P 80MHz to 800 MHz
d = 2,3 √P 800MHz 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).

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Radiated RF
IEC 61000-4-3
3 V/m 80MHz to 2,5
GHz
3 V/m
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey
a
,
should be less than the
compliance level in each
frequency range
b
.
Interference may occur in the
vicinity of equipment marked with
the following symbol:
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 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 MEDICAL SCALE MS4940
is used exceeds the applicable RF compliance level above, the MEDICAL
SCALE MS4940 should be observed to verify normal operation. If abnormal
performance is observed, additional measures my be necessary, such as
re-orienting or relocating the MEDICAL SCALE MS4940.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be les than
3 V/m.

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Recommended separation distance between portable and mobile RF
communications equipment and the MEDICAL SCALE
The MEDICAL SCALE MS4940 is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or
the user of the MEDICAL SCALE MS4940 can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the MEDICAL SCALE
MS4940 as recommended below, according to the maximum output power of
the communications equipment.
Separation distance according to frequency of transmitter m Rated maximum output
power of transmitter
W
150 kHz to 80 MHz
d =1,2√P
80 MHz to 800 MHz
d =1,2√P
800 MHz to 2,5 GHz
d =2,3√P
0,01 0,12 0,12 0,23
0,1 0,38 0,38 0,73
1 1,2 1,2 2,3
10 3,8 3,8 7,3
100 12 12 23
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.
NOTE1 At 80 MHz and 800 MHz, the separation distance for the higher
frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic
propagation is affected by absorption and reflection from structures, objects
and people.

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SPECIFICATION
Model MS4940
Capacity 300kg x 0.1kg 150kg x 0.05kg
Accuracy ±0.15kg ±0.075kg
OIML Class III III
CE Marking 2007/47/EC 2007/47/EC
Weight Unit kg
Operating Temp.
and Humidity 5°C - 35°C
15% - 85% RH
Transport /
Storage Temp,
and Humidity
- 20°C … + 60°C
10% - 95% RH
LCD Display 1.0 inch LCD display with 5 and 1/2 digits
Dimension 360(W) x 480(D) x1100(H) mm
Column only: 1000 mm
Key Functions
ON/OFF, PRINT, BMI, HOLD,PRE-TARE,TARE,
CLEAR, ENTER, 0~9, M1-5, 0 (ZERO)
Power Supply AAA Battery x 6 & AC Adaptor
Rechargeable battery pack(OPTIONAL)
Operation
Temperature 5℃/ 35℃
Mechanical Height Measurement HM201M
OPTIONS Digital Height Measurement HM200D
(MS4940 does not support data transfer on HM200D)

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PANEL
MS 4940

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POWER ADAPTOR STANDARDS
CAUTION: The device is only compatible with restricted power
adaptors in dashed block below.
KEY FUNCTION

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MS 4940
Key Description
ON/OFF Turn ON/OFF the scale
PRINT Data transmission via interface(Print-out the results)
BMI Determine Body Mass Index
HOLD To hold weighing result on the display / determine
stable weighing value
To reset the display to 0.0kg display / Zero the scale
(±2% of full capacity)
M1-5 To store 5 pre-tare values.
PRE-TARE
Setup target weight for tare before weighing
TARE Tare weight during weighing process.
CLEAR To clear the wrong entry while entering digits.
ENTER To confirm the performing functions.
0-9 Entering digits

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LCD DISPLAY SYMBOLS
Definitions
Stable symbol: To indicate that the weight is stable..
Minor weight: Weight under zero.
Zero symbol: Weight is at zero point.
Low battery: Battery need to charge or replaced
PRE-TARE Indication
kg
BMI Indication
NET WEIGHT I
ndicat
ion
WEIGHT Indication
Hold Indication
Stable symbol
Minor weight
Zero symbol
Low Battery

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USING SCALE
WEIGHING
Switch on the scale using key. The diagnostic scale
self-check is performed and the software version is displayed.
The „0,00 kg” weight displays on the screen, now the scale is
ready for weighing.
Note: If „0,00 kg” wont display on the screen, press key to
zero the scale, can be used any time to zero the scale.
Place a person in the middle of the scale. Wait until the scale
stabilizes and stable sign (ο) shows on the screen
Direction:
If a person is heavier than the scale capacity, the display will show
the „Err” prompt (= overload).
USING HOLD FUNCTION
MS 4940 are provided with the integrated hold function
(determination of average value). It enables people to be weighed
accurately although they are not still on the scale plate. Once the
HOLD key is pressed, the weight reading will remain on the display
after the item has been removed from the scale so the reading can
easily be read.
Note: Determination of average value is not possible when a person
moves too much.

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(1)
(2)
Switch ‘ON’ the scale using [ON/OFF] key. The diagnostic
self-checks is performed. The scale is ready for weighing when
the „0.0 kg” displays on the screen.
Place object/ person in the center of the scale plate.
Press the [HOLD] key. When the triangle is flashing on the
display, the scale records the fluctuating weight values and then
calculates average weight and displays the result on the
screen .
Remove the object/ person from the scale platform. The object/
person’s weight reading will remain on the display.
Press the [HOLD] key again to return the scale to the normal
weighing mode.
HOLD key function can be activated before or after putting the
weight on the tread platform. But in case of weighing unstable
person it is recommended to press HOLD key before the person
moves on the tread platform.

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USING TARE FUNCTION
Tare allows the user to zero the instrument to cancel the weight of a
container/ clothes from the reading of the instrument, thus giving the
true weight of the product/ person being tested.
Place the object need to be tare on the tread platform.
Press TARE key after the weight stabilizes and stable sign
displays.
Place the object need to be weighed (without removing the tare
object)
To delete the saved tare value, remove the tare object from the tread
platform and press [TARE] key.