KERN MBC Series User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Baby scale
KERN MBC
Type MBC 15K2DM
Type MBC 20K10M
Type MBC 15K2DNM
Type MBC 20K10NM
Version 1.0
2017-02
GB
MBC-BAPS-e-1710

2 MBC-BAPS-e-1710
GB
KERN MBC
Version 1.0 2017-02
Operating instructions
Baby scale
Contents
1Technical data................................................................................................ 4
2Declaration of conformity ............................................................................. 6
3Appliance overview ....................................................................................... 6
3.1 Overview of display.................................................................................................................. 7
3.2 Keyboard overview................................................................................................................... 8
4Basic Information (General).......................................................................... 9
4.1 Proper use................................................................................................................................. 9
4.2 Improper Use ............................................................................................................................ 9
4.3 Warranty.................................................................................................................................. 10
4.4 Monitoring of Test Resources............................................................................................... 10
5Basic Safety Precautions............................................................................ 11
5.1 Pay attention to the instructions in the Operation Manual................................................ 11
6Transport and storage................................................................................. 11
6.1 Testing upon acceptance ...................................................................................................... 11
6.2 Packaging / return transport ................................................................................................. 11
7Unpacking, Setup and Commissioning ..................................................... 12
7.1 Installation Site, Location of Use.......................................................................................... 12
7.2 Unpacking ............................................................................................................................... 12
7.3 Scope of delivery.................................................................................................................... 13
7.4 Placing..................................................................................................................................... 13
7.5 Rechargeable battery operation ........................................................................................... 14
7.6 Battery operation.................................................................................................................... 15
7.7 Mains connection................................................................................................................... 16
7.8 Initial Commissioning ............................................................................................................ 16
8Operation...................................................................................................... 17
8.1 Weighing ................................................................................................................................. 17
8.2 Taring....................................................................................................................................... 17
8.3 Hold function (Standstill function) ....................................................................................... 18
8.4 Feeding function (control of weight gain)............................................................................ 19
8.5 Show another decimal place (not verified value)................................................................ 19
8.6 Use the optional size measurement device......................................................................... 20

MBC-BAPS-e-1710 3
9Menu ............................................................................................................. 21
9.1 Navigation in the menu.......................................................................................................... 21
9.2 Menu overview........................................................................................................................ 22
10 Error messages............................................................................................ 25
11 Service, maintenance, disposal.................................................................. 26
11.1 Cleaning .................................................................................................................................. 26
11.2 Cleaning / Disinfecting........................................................................................................... 26
11.3 Sterilisation............................................................................................................................. 26
11.4 Service, maintenance............................................................................................................. 26
11.5 Disposal................................................................................................................................... 26
12 Instant help................................................................................................... 27
13 Adjustment................................................................................................... 28

4 MBC-BAPS-e-1710
1 Technical data
KERN (Type) MBC 15K2DNM MBC 20K10NM
Trademark MBC 15K2DM MBC 20K10M
Weighing range (max) 6 kg / 15 kg 20 kg
Readability (d) 2 g / 5 g 10 g
Reproducibility 2 g / 5 g 10 g
Linearity ± 2 g / 5 g 10 g
Display LCD with 25mm high digits
Recommended
adjustment weight, not
added (class)
15 kg
(M1) 20 kg (M1)
Stabilization time (typical) 3 sec.
Warm-up time 10 min
Operating temperature 10° C …. + 40° C
Humidity of air max. 80 % (not condensing)
Input Voltage 100 V - 240 V, 50 / 60 Hz
Auto Off After “x“ min adjustable without load change
Dimensions fully mounted
(W x D x H) mm 890 x 460 x 175
(incl. integrated height measuring device)
Dimensions display unit
(W x D x H) mm 200 x 127 x 55
Baby weighing pan
(WxD) mm 600 x 276
Weight kg (net) 4.5
Rechargeable battery
operation optional; 6 x 1.2 V 2000 mA
Height measuring rod,
(optional) Measuring range: 40 - 80 cm

MBC-BAPS-e-1710 5
KERN (Type) MBC 15K2DM MBC 20K10M
Weighing range (max) 6 kg / 15 kg 20 kg
Readability (d) 2 g / 5 g 10 g
Reproducibility 2 g / 5 g 10 g
Linearity ± 2 g / 5 g 10 g
Display LCD with 25mm high digits
Recommended
adjustment weight, not
added (class)
15 kg
(M1) 20 kg (M1)
Stabilization time (typical) 3 sec.
Warm-up time 10 min
Operating temperature 10° C …. + 40° C
Humidity of air max. 80 % (not condensing)
Input Voltage 100 V - 240 V, 50 / 60 Hz
Auto Off After “x“ min adjustable without load change
Dimensions fully mounted
(W x D x H) mm 890 x 460 x 175
(incl. integrated height measuring device)
Dimensions display unit
(W x D x H) mm 200 x 127 x 55
Baby weighing pan
(WxD) mm 600 x 276
Weight kg (net) 4.5
Rechargeable battery
operation optional; 6 x 1.2 V 2000 mA
Height measuring rod,
(optional) Measuring range: 40 - 80 cm

6 MBC-BAPS-e-1710
2 Declaration of conformity
To view the current EC/EU Declaration of Conformity go to:
www.kern-sohn.com/ce
3 Appliance overview
1. Height measuring rod (optional)
2. Bubble level
3. Display Unit
4. LED
5. Baby weighing pan
6. Weighing pan
7. Rubber feet (height adjustable)
8. Mains connection
9. Battery compartment
10.RS232

MBC-BAPS-e-1710 7
3.1 Overview of display
Display Description Description
GROSS Gross weight display Lights up during indication of the gross
weight of the baby (after drinking)
NET Net weight display Lights up during indication of the net weight
of the baby (before drinking)
Illuminated after weighing scale was tared
ZERO Zeroing display Should the balance not display exactly zero
despite empty scale pan, press the
button. Your balance will be set to zero after
a short standby time.
STABLE Stability display Scales are in a steady state
DRINK DRINK function Is displayed with active drink function
HOLD HOLD function Is displayed with active hold function
Rechargeable battery
symbol
Lights when the voltage drops below the
prescribed minimum.
Lights when the rechargeable battery
capacity is almost exhausted.
Lights when the rechargeable battery is fully
charged.

8 MBC-BAPS-e-1710
3.2 Keyboard overview
Type MBC 15K2DM
Type MBC 20K10M
Type MBC 15K2DNM
Type MBC 20K10NM
Key Description Function
ON/OFF-switch Turn on/off
Zeroing key Weighing scale will be reset to „0.0“ kg.
For numeric entry:
•Change decimal place
HOLD button Hold function
TARE button Tare balance
Feeding Function
key Differential weighing before and after the baby drinks
The net weight of the baby will be shown:
Before drinking
In menu:
•Call up menu
•How to select menu items
For numeric entry:
Edit numeric value
The gross weight is displayed:
After drinking
In menu:
Confirm selection
For numeric entry:
Confirm numerical value

MBC-BAPS-e-1710 9
4 Basic Information (General)
4.1 Proper use
The scales are used for determining the body mass of children .
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!
4.2 Improper Use
Do not use these scales for dynamic weighing processes.
Do not leave permanent load on the weighing pan. This may damage the measuring
system.
--
Impacts and overloading exceeding the stated maximum load (max) of the weighing
plate, 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. It should be noted that a flammable mixture of anaesthetics and oxygen or
laughing gas may occur.
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.
Do not use the scales for determining body mass in medicine.

10 MBC-BAPS-e-1710
4.3 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
4.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related weighing 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.kern-sohn.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 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.

MBC-BAPS-e-1710 11
5 Basic Safety Precautions
5.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before
setup and commissioning, even if you are
already familiar with KERN balances.
6 Transport and storage
6.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
6.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required
return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
Reattach possibly supplied transport securing devices.

Secure all parts such as the weighing pan, power unit etc. against
shifting and damage.

12 MBC-BAPS-e-1710
7 Unpacking, Setup and Commissioning
7.1 Installation Site, Location of Use
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, vapours 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.
Major display deviations (incorrect weighing results) may be experienced should
electromagnetic fields (e.g. due to mobile phones or radio equipment), static
electricity accumulations or instable power supply occur. In that case, the location
must be changed.
7.2 Unpacking
Take the balance out of their packaging and place it at the intended position. When
using the power pack, ensure that the power cable does not produce a risk of
stumbling.

MBC-BAPS-e-1710 13
7.3 Scope of delivery
Balance
Power pack unit
Operating instructions
7.4 Placing
Carefully remove the balance from the packaging, remove plastic cover and setup
balance at the intended workstation.
Make sure that all transport locking devices are removed
To loosen the transport guard screw out transport screw [1] anticlockwise.
For transportation carefully screw-in transport screw clockwise till to the stopper
and then fix it using locknut.

14 MBC-BAPS-e-1710
Levelling
Level balance with foot screws until the air bubble of the
water balance is in the prescribed circle.
7.5 Rechargeable battery operation
(is possible by obtaining an optional battery power pack)
Open the battery compartment cover (1) at the base of the display unit and insert the
rechargeable battery pack. Charge the battery for at least 12 hours before initial use.
The appearance of the symbol in the weight display indicates that the battery
packs is almost exhausted. The weighing scale will remain ready for operation for a
few more minutes before switching off in order to save battery. Load rechargeable
battery.
Voltage has dropped below prescribed minimum.
Rechargeable battery very low.
Rechargeable battery completely reloaded
If the balance is not used for a longer time, take out the battery pack and store it
separately. Leaking liquid could damage the balance.

MBC-BAPS-e-1710 15
7.6 Battery operation
As an alternative to rechargeable battery operation, the balance may also be
operated with 6x AA batteries.
Open battery compartment cover (1) at the lower side of the display unit and insert
batteries according to the example below. Lock the battery cover again. If the
batteries are empty, in the balance display appears the symbol . Change
batteries. To save battery power, the balance switches off automatically (see
chap.11.6 Auto off).
Capacity of batteries exhausted.
Batteries will soon be flat.
Batteries are completely charged
Insert batteries
Remove battery compartment cover
Connect battery holder to housing
contact acc. to illustration
Insert battery holder
Insert batteries into battery compartment
and lock with battery compartment
cover.

16 MBC-BAPS-e-1710
7.7 Mains connection
Power is supplied by the external power unit which also serves to isolate the mains
supply from the scale. The stated voltage value must be the same as the local
voltage.
It is allowed to use only admitted, original power supply adaptors of KERN company.
The small sticker attached to the side of the display unit indicates the power port:
The LED remains illuminated as long as the weighing scale remains connected to the
mains.
The LED display provides information about the battery's charging status.
Green: battery is fully charged
Blue: battery is charging
7.8 Initial Commissioning
In order to obtain exact results with the electronic balances, your balance must have
reached the operating temperature (see warming up time chap. During this warming
up time the balance must be connected to the power supply (mains, accumulator or
battery) and be switched on.
The accuracy of the balance depends on the local acceleration of gravity.
The value of gravity acceleration is shown on the type plate.

MBC-BAPS-e-1710 17
8 Operation
8.1 Weighing
Start balance by pressing
The balance will carry out a self-test
The scales are ready for operation as soon as the weight
display for “0.0kg“ has appeared.
However, you can reset the weighing scale to zero by pressing
the key.
Put the baby in the centre of the weighing pan.
Wait for stability display "STABLE", then read the weighing
result.

If the baby is heavier than the max. weighing range, the display
shows "oL" (overload) and a beep sounds.
8.2 Taring
The tare weight of any preloads can be deducted by pressing a button so that the
actual weight of the baby is displayed in subsequent weighings.
(example)
Put object (such as towel or padding) on the weighing pan.
Wait until stability display „STABLE“ appears
Press , the zero display appears.
(example)
Put baby on the weighing pan.
Wait until the stability display „STABLE“ appears, then read
the weighing result. „NET” is shown at the bottom on the left.

18 MBC-BAPS-e-1710
When the balance is unloaded the saved taring value is
displayed with negative sign.
To delete the stored tare value, release scales and press .
8.3 Hold function (Standstill function)
The balance has an integrated standstill function (mean value calculation). This
allows one to weigh the baby exactly, even if it is not restful in the weighing pan.
Start balance by pressing .
Wait for “0.000” display to appear.
Put the baby in the centre of the weighing pan Press
button, „--------„ is displayed. In addition the „HOLD“ symbol
appears.
(Beispiel)
The weight of the baby will be displayed and „frozen“.
After unloading the balance, the weighing value remains
displayed for approx. 10 seconds, than the balance returns
automatically into the weighing mode.
The „HOLD“ symbol disappears.

MBC-BAPS-e-1710 19
8.4 Feeding function (control of weight gain)
The baby's weight can be saved before feeding. Then the weight gain can be
calculated by pressing a button.
Start balance by pressing .
Stability display await "STABLE"
(example)
Place the baby on the weighing pan center before feeding.
After the stability display shows STABLE", press . The
weight of the baby is recorded and stored. Display "DRINK"
lights up.
Take the baby from the weighing pan.
Place the baby on the scale pan after feeding.
Press , the difference between the weight and the value
before and after breastfeeding is displayed.
By pressing the button, the balance returns to the normal
weighing mode.
8.5 Show another decimal place (not verified value)
Press and hold for about 2 s whilst weighed result is being shown. The second
decimal place will be shown for approx. 5 s.

20 MBC-BAPS-e-1710
8.6 Use the optional size measurement device
The scale has the ability to determine not only the weight but also the body height
using the optional height measuring rod.
For this purpose proceed as follows:
Put the head stopper (left) (1) to zero (2)
Put the baby in the centre of the weighing pan.
Move the height measuring rod (3) carefully to the right until the head stopper
(3) gently touches the baby’s head
With the right hand push the foot stopper (right) (4) carefully to the soles of the
baby
On the scale read the baby’s size.
For further information (for example, installation), refer to the instruction
manual that comes with the height measurement.