KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Baby/toddler weighing scales
KERN MBS
Version 1.1
06/2010
GB
MBS-BA-e-1011
GB
KERN MBS
Version 1.1 06/2010
Operating Instructions for Baby/toddler
weighing scales
Table of Contents
1 Technical Data ............................................................................................... 3
2 Declaration of -Conformity............................................................................ 4
3 Appliance overview ....................................................................................... 5
4 Basic Information (General).......................................................................... 7
5 Basic Safety Precautions .............................................................................. 9
6 Transportation & Storage.............................................................................. 9
7 Unpacking, Setup and Commissioning ..................................................... 10
8 Operation...................................................................................................... 15
9 Adjustment ................................................................................................... 21
10 Service, maintenance, disposal.................................................................. 22
11 Instant help................................................................................................... 23
MBS-BA-e-1011 2
3 MBS-BA-e-1011
1 Technical Data
KERN MBS 20K10
Readability (d) 10 g
Weighing range (max) 20 kg
Weighing Units kg, lb
Electric Supply 1 x 9V block battery + 1 x CR2032
Time/date display After 2 min without change of load
Recommended adjustment
weight
10 kg
Operating temperature + 5°C … + 35°C
Humidity of air max. 80 % (not condensing)
Dimensions fully mounted (W x
D x H) mm
560 x 370 x 175
Weighing surface 520 x 230
Weight kg (net) 3.0
2 Declaration of -Conformity
KERN & Sohn GmbH
D-72322 Balingen-Frommern
Postfach 4052
E-Mail: info@kern-sohn.de
Tel: 0049-[0]7433- 9933-0
Fax: 0049-[0]7433-9933-149
Internet: www.kern-sohn.de
Konformitätserklärung
EC-Konformitätserklärung EC-Declaration of -Conformity
EC-
Déclaration de conformité EC-Declaración de Conformidad
EC-Dichiarazione di conformità EC-Conformiteitverklaring
EC- Declaração de conformidade EC- Prohlášení o shode
EC-Deklaracja zgodności EC-Заявление о соответствии
D
Konformitätserklärung
Wir erklären hiermit, dass das Produkt, auf das sich diese Erklärung bezieht,
mit den nachstehenden Normen übereinstimmt.
GB
Declaration of
conformity
We hereby declare that the product to which this declaration refers conforms
with the following standards.
CZ
Prohlášení o
shode
Tímto prohlašujeme, že výrobek, kterého se toto prohlášení týká, je v souladu
s níže uvedenými normami.
E
Declaración de
conformidad
Manifestamos en la presente que el producto al que se refiere esta
declaración está de acuerdo con las normas siguientes
F
Déclaration de
conformité
Nous déclarons avec cela responsabilité que le produit, auquel se rapporte la
présente déclaration, est conforme aux normes citées ci-après.
I
Dichiarazione di
conformitá
Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si
riferisce è conforme alle norme di seguito citate.
NL
Conformiteitverklaring
Wij verklaren hiermede dat het product, waarop deze verklaring betrekking
heeft, met de hierna vermelde normen overeenstemt.
P
Declaração de
conformidade
Declaramos por meio da presente que o produto no qual se refere esta
declaração, corresponde às normas seguintes.
PL
Deklaracja
zgodności
Niniejszym oświadczamy, że produkt, którego niniejsze oświadczenie
dotyczy, jest zgodny z poniższymi normami.
RUS
Заявление о
соответствии
Мы заявляем, что продукт, к которому относится данная декларация,
соответствует перечисленным ниже нормам.
Electronic Balance: KERN MBS 20K10
EU Directive Standards
2004/108/EC EN 61000-6-3: 2007
EN 55014-1: 2006
EN 55014-2/A1: 2001
Date: 07.12.2009 Signature:
Gottl. KERN & Sohn GmbH
Management
Gottl. KERN & Sohn GmbH, Ziegelei 1, D-72336 Balingen, Tel. +49-[0]7433/9933-0,Fax +49-[0]7433/9933-149
MBS-BA-e-1011 4
3 Appliance overview
Utilisation as baby weighing scales (For assembly see Chapter 6)
Utilisation as toddler weighing scales
5 MBS-BA-e-1011
Underside
1. Transportation screw
2. Battery compartment for 9V block battery
3. Weighing unit selector switch
4. Insulation strips
5. Battery compartment for CR2032
MBS-BA-e-1011 6
4 Basic Information (General)
Intended use
These scales are used to determine the weight of babies in the
prone position in the private sphere. Utilisation of this balance
in the medical field is not permissible.
Lay or place the baby on the weighing plate for the weighing
procedure. As soon as a stable weighing value is reached the
weighing value can be read.
The balance should be checked for correct condition prior to
each utilisation by a person familiar with proper operation of
the balance.
Baby scales are designed for weighing children in the prone
position. If babies are to be weighed in the sitting position,
place them in the middle of the scale pan.
To prevent babies lying on the weighing pan from falling off the
scale, they must be watched all the time. Please observe note
on weighing pan!
Non-intended
use
Do not use balance for dynamic weighing. In the event that
small quantities are removed or added to the material to be
weighed, incorrect weighing results can be displayed due to
the “stability compensation“ in the balance.
(Example: Slowly draining fluids from a container on the
balance. )
Do not leave permanent load on the weighing plate. This may
damage the measuring system.
Impacts and overloading exceeding the stated maximum load
(max) of the balance, minus a possibly existing tare load, must
be strictly avoided. This could cause damage to the balance.
Never operate balance in explosive environment. The serial
version is not explosion protected.
The structure of the balance may not be modified. This may
lead to incorrect weighing results, safety-related faults and
destruction of the balance.
The balance may only be used according to the described
conditions. Other areas of use must be released by KERN in
writing.
7 MBS-BA-e-1011
MBS-BA-e-1011 8
Warranty
Warranty claims shall be voided in case
Our conditions in the operation manual are ignored
The appliance is used outside the described uses
The appliance is modified or opened
Mechanical damage and damage caused by media, liquids
Natural wear and tear
The appliance is improperly set up or incorrectly electrically
connected
The measuring system is overloaded
Dropping the balance
Test device
control
In the framework of quality assurance the measuring-related
properties of the balance and, if applicable, the testing weight,
must be checked regularly. The responsible user must define a
suitable interval as well as type and scope of this test.
Information is available on KERN’s home page (www.kernsohn.com) with regard to the monitoring of balance test
substances and the test weights required for this. In KERN’s
accredited DKD calibration laboratory test weights and
balances may be calibrated (return to the national standard)
fast and at moderate cost.
For personal balances with height measuring rods, we
recommend a metrological examination of the accuracy of the
height measuring rod, however, this is not mandatory as the
determination of human body height involves rather large,
intrinsic inaccuracies.
5 Basic Safety Precautions
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN
balances.
6 Transportation & Storage
Testing upon
acceptance
When receiving the appliance, please check packaging
immediately, and the appliance itself when unpacking for
possible visible damage.
Packing,
packing
material,
packaging
Keep all parts of the original packaging in case you need to
return the appliance.
Only use original packaging for returning.
Before sending, disconnect all connected cables and
loose/movable parts.
Attach possibly existing transport safeguards. Secure all parts
e.g. weighing platform, power pack, stand, operating panel etc.
against slipping and damage.
9 MBS-BA-e-1011
MBS-BA-e-1011 10
7 Unpacking, Setup and Commissioning
Installation
location,
Deployment
location
The balances are designed in a way that reliable weighing
results are achieved in common conditions of use. You will
work accurately and fast, if you select the right location for
your balance.
On the installation site observe the following:
Place scales on a stable, even surface
Avoid extreme heat as well as temperature fluctuation
caused by installing next to a radiator or in the direct
sunlight;
Protect the balance against direct draughts due to open
windows and doors;
Avoid jarring during weighing;
Protect the balance against high humidity, vapors and
dust;
Do not expose the device to extreme dampness for longer
periods of time. Non-permitted condensation
(condensation of air humidity on the appliance) may occur
if a cold appliance is taken to a considerably warmer
environment. In this case, acclimatize the disconnected
appliance for ca. 2 hours at room temperature.
Avoid static charge of the balance and of the person to be
weighed.
Avoid contact with water.
If electro-magnetic fields or static charge occur, or if the power
supply is unstable major deviations on the display (incorrect
weighing results) are possible. In that case, the location must
be changed.
Unpacking
Remove the individual components of the balance or the
complete balance from the packaging with care and install at
the intended location.
Scope of supply
• Balance, see chap. 3
• Operating instructions
• Batteries (1 x 9V block battery + 1 x CR2032)
Placing 1. Remove transportation protection and insulation strips
Fig.1: Bottom of the balance
Acc. to fig. 1 remove transportation screw [1] and insulation
strips [4] (See Chapter "Battery operation").
Prior to an other transport apply again the transport screw.
2. Select weighing unit
The weight display can be switched between grams (g/kg) and
pounds (lb.oz).
Select the required unit on the weight display by pressing the
selector switch [3] (See Fig.1) "g ' lb".
11 MBS-BA-e-1011
3. Assembling the baby scales
Open scale pan and click into place in accordance with Fig.
Ensure that the latch mechanism has completely clicked into
the end position.
Push scale pan onto weighing plate. Ensure correct
positioning; the stop [6] must point towards the back.
Push weighing plate completely as far as the stop [6]. Ensure
that the weighing plate is exactly horizontal.
MBS-BA-e-1011 12
4. Dismantling the baby scales
Carry out the assembly procedure in reverse order.
Ensure that vigorous pressure is exerted when snapping the
scale pan into position with both hands.
13 MBS-BA-e-1011
Battery
operation
Remove the battery cover [2] from the underside of the scales
Connect 9 V block battery, replace battery cover.
A CR2032 coin cell battery [5] for the time/date display is
inserted in the factory. In as-delivered condition a insulation
strip [4] is inserted under the battery contact in order to prevent
switching on during transport. This strip must be removed prior
to first utilisation. Undo the screw on the battery cover and
remove insulation strips. Screw battery cover back on.
The scales are switched off after 2 minutes without load
change in order to save the battery. Time and date are
displayed alternately in this Idle mode.
If the batteries are run down soon, "LO" appears in the display.
Replace battery.
The memory contents will be deleted if both batteries are
removed at the same time.
If the balance is not used for a longer time, take out the
batteries and store them separately. Leaking battery liquid
could damage the balance.
MBS-BA-e-1011 14
8 Operation
Keyboard
overview
Save weight value
Call off weight value
Display weight gain
Set date/time
During numeric input increase of digit
Selector switch Time/
Date display ' Weight display
Taring
Overview of
displays
Identifies the display of a saved weight
value after pressing
TS
Identifies the following displays after
pressing
1. Weight gain/loss
2. Date/time of the saved weight
value
15 MBS-BA-e-1011
Set date/time
Ö Press during time/date display, the hour display
flashes.
Ö Select required setting e.g. 10 within 10 s by pressing .
Ö Confirm by pressing , the minute display flashes.
Ö Select required setting within 10 s by pressing .
Ö Confirm by pressing , the month display flashes.
Ö Select required setting e.g. 09 within 10 s by pressing .
Ö Confirm by pressing , the day display flashes.
Ö Select required setting within 10 s by pressing .
Ö Confirm by pressing , the changed time/date will be
displayed alternately.
After a battery change or in the delivery state, the time will
displayed as "00.00" (24 h) and the date as 01.01 (day/month).
MBS-BA-e-1011 16
Weighing
Dynamic weighing function:
Vibrations will be filtered out to calculate a stable weight
Ø
Ö Press The balance will carry out a segment
test. As soon as the weight display "0 g" appears in the
currently set weighing unit ("g" or "lb"), the scales are ready
for use.
Reset to zero if necessary by pressing .
Display < 10 kg Ö Place person in the centre of the balance or place baby in the
scale pan.
Wait until a stable weight is displayed.
Display < 10 kg
As the scales have only a 4 segment display, the last digit is
displayed as the next whole number with a display > 10 kg.
• If the weighing range is exceeded, "---" is displayed.
• The scales are switched off after 2 minutes without load
change in order to save the battery. Time and date are
displayed alternately in this Idle mode.
• The weight display is automatically "frozen" in the event of
weighing stoppage. Next weighed goods will only be
displayed after relieving.
17 MBS-BA-e-1011
Weighing with
tare
The tare weight of any preloads can be deducted by pressing
a button so that the actual weight of the person is displayed in
subsequent weighings.
Ö Put object (such as towel or padding) on the weighing pan.
Ö Press , the zero display appears.
Ö Place person in the centre of the balance or place baby in the
scale pan.
Wait until a stable weight is displayed.
• The balance is able to only store one taring value.
• When the balance is unloaded the saved taring value is
displayed with negative sign.
• To delete the stored tare value, release scales and press
.
MBS-BA-e-1011 18
Weight gain check
The baby's weight can be saved before feeding. Then the
weight gain can be calculated by pressing a button.
Ø
Ö Press . The balance will carry out a
segment test. As soon as the weight display "0 g" appears
in the currently set weighing unit ("g" or "lb"), the scales
are ready for use.
Save
(Example)
Ö Place the baby on the scale pan before feeding.
Wait until a stable weight is displayed.
Ö then press .
The weight will be saved.
Ø
(Example)
Ö Press and wait for weight display.
Ö Place the baby on the scale pan after feeding.
Display weight
gain
(Example
Ø
(Example)
Ø
(Example)
Ø
(Example)
Ö Press and the scales will calculate the difference
between the saved (before feeding) and the current weight
value (after feeding).
The weight gain is displayed followed by date/time of the
saved weight value (before feeding) and the current
weight. The displays are identified by the TS symbol.
• The key can only be operated with the weight
display or displays with the TS symbol.
• The scales can display weight gains as well as weight
losses (negative values).
19 MBS-BA-e-1011
Calling up
• The saved weight value is called up by pressing ,
irrespective of whether the scales are in Weighing mode
(weight display) or in Idle mode (time/date). The weight
value is displayed for 4 s and identified by the symbol .
• The saved weight value remains stored until it is
overwritten with a new value.
• The value will be deleted if the battery is changed.
MBS-BA-e-1011 20
9 Adjustment
Ø
Ø
Ø
Ø
Ö Connect battery and at the same time press and
“1111“ followed by „EEEE“, „8888“ and „ --- „ is displayed
After that the balance changes to gram display „0 g“
Ö Put an adjustment weight of 10 kg
(Example)
Ö Press and
A numeric value between „9999 and 10010“ is displayed
Ö Take away adjustment weight
Ö Remove battery
Now the process of adjustment is completed
21 MBS-BA-e-1011
MBS-BA-e-1011 22
10 Service, maintenance, disposal
Cleaning
Please do not use aggressive detergents (solvents etc.). Apply
soapy water to moist cloth or use household detergent.
Prevent fluid from penetrating into device. Finish by polishing
with dry soft cloth. Remove dirt immediately.
Service,
maintenance
The appliance may only be opened by trained service
technicians who are authorized by KERN.
Disposal
Disposal of packaging and appliance must be carried out by
operator according to valid national or regional law of the
location where the appliance is used.
23 MBS-BA-e-1011
11 Instant help
In case of a fault in the program sequence, the balance should be shortly switched
off. The weighing process must then be restarted from the beginning.
Failure: Possible cause:
The displayed weight
does not glow.
• The balance is not switched on.
• Batteries are inserted incorrectly or empty
• No batteries inserted.
The displayed weight is
permanently changing
• Draught/air movement
• Table/floor vibrations
• The weighing plate is in contact with foreign bodies
or is not correctly positioned.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
The weighing result is
obviously incorrect
• The display of the balance is not at zero
• Adjustment is no longer correct.
• Great fluctuations in temperature.
• The balance is on an uneven surface.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
possible)
Should other error messages occur, switch balance off and then on again. If the
error message remains inform manufacturer.
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