KERN MBB User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating instructions
Baby weighing scale/
Toddler weighing scale
KERN MBB
MBB 15K2DNM
Version 1.2
2019-05
GB
MBB-BAPS-e-1912

2 MBB-BAPS-e-1912
GB
KERN MBB
Version 1.2 2019-05
Operating instructions
Baby weighing scale/ Toddler weighing scale
Table of Contents
1Technical Data ............................................................................................... 4
2Declaration of conformity ............................................................................. 4
3Basic Information (General).......................................................................... 5
3.1 Proper use................................................................................................................................. 5
3.2 Improper Use ............................................................................................................................ 5
3.3 Warranty.................................................................................................................................... 6
3.4 Monitoring of Test Resources................................................................................................. 6
4Basic Safety Precautions.............................................................................. 6
4.1 Pay attention to the instructions in the Operation Manual.................................................. 6
5Appliance overview ....................................................................................... 7
6Overview of displays..................................................................................... 8
7Keyboard overview........................................................................................ 9
8Transportation & Storage.............................................................................. 9
8.1 Testing upon acceptance ........................................................................................................ 9
8.2 Packaging / return transport ................................................................................................... 9
9Unpacking, Setup and Commissioning ..................................................... 10
9.1 Installation Site, Location of Use.......................................................................................... 10
9.2 Unpacking ............................................................................................................................... 10
9.3 Scope of supply...................................................................................................................... 11
9.4 Assembly and erection.......................................................................................................... 11
9.5 Assemble the wall bracket .................................................................................................... 12
9.6 Battery operation/ Rechargeable battery operation (optional).......................................... 13
9.6.1 Battery operation...................................................................................................................... 14
9.6.2 Rechargeable battery operation (optional)............................................................................... 16
9.7 Connecting the power supply............................................................................................... 18
9.8 Initial Commissioning ............................................................................................................ 18
10 Menu overview............................................................................................. 18
11 Operation...................................................................................................... 19
11.1 Weighing ................................................................................................................................. 19
11.2 Taring....................................................................................................................................... 20
11.3 Hold function (Standstill function) ....................................................................................... 20
11.4 Toddler weighing scales........................................................................................................ 21
11.4.1 Assembly of toddler weighing scales................................................................................... 22
12 Error messages............................................................................................ 22

MBB-BAPS-e-1912 3
13 Service, maintenance, disposal.................................................................. 23
13.1 Cleaning .................................................................................................................................. 23
13.2 Cleaning / Disinfecting........................................................................................................... 23
13.3 Sterilisation............................................................................................................................. 23
13.4 Service, maintenance............................................................................................................. 23
13.5 Disposal................................................................................................................................... 23
14 Instant help................................................................................................... 24
14.1 Adjustment.............................................................................................................................. 25
14.2 Adjustment controls............................................................................................................... 27
14.2.1 Menu overview in service mode (adjustment switch in adjustment position) ...................... 27
14.3 Navigation in the menu.......................................................................................................... 28
14.3.1 Exit menu and save.............................................................................................................. 28
14.4 Menu overview:....................................................................................................................... 29

4 MBB-BAPS-e-1912
1 Technical Data
KERN (Type) MBB 15K2DNM
Model MBB 15K2DM
Display 6-digit
Weighing range (max)
6 kg; 15 kg
Reproducibility 2 g; 5 g
Linearity 2 g; 5 g
Display
LCD 24mm digit height
Recommended adjustment
weight, (Class) 15 kg
(M1)
Stabilization time (typical) 2 – 3 sec.
Warm-up time 10 min
Operating temperature
+ 5° C …. + 35° C
Storage temperature - 20°C … + 60°C
Humidity of air max. 80 % (not condensing)
Electric Supply Line adapter 12V / 500 mA or 15 V / 300 mA
Battery operation 6 x 1.5V, size AA
Operating life 50 h
Auto Off After 3 min without load change, adjustable
Housing display unit
(B x D x H) mm
210 x 110 x 45
Weighing pan (WxD) mm 560 x 295
Weight kg (net) 3.6
Rechargeable battery Working life 50 h
Loading time 14 h
7.2 V / 2000 mA
2 Declaration of conformity
To view the current EC/EU Declaration of Conformity go to:
www.kern-sohn.com/ce

MBB-BAPS-e-1912 5
3 Basic Information (General)
3.1 Proper use
The scales are used for determining the body weights of infants and small children.
The value may be read after the scale stabilizes.
The scales are designed for continuous use.
To prevent babies/toddlers lying/standing on the weighing pan
from falling off the scale, they must be watched all the time.
Please observe note on weighing pan!
3.2 Improper Use
Do not use these scales for dynamic weighing processes.
Do not leave permanent load on the balance. This may damage the measuring
system.
Impacts and overloading exceeding the stated maximum load (max) of the weighing
pan, 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 anesthetics 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 weight in medicine.

6 MBB-BAPS-e-1912
3.3 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
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related weighing properties of
the balances 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.
4 Basic Safety Precautions
4.1 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.

MBB-BAPS-e-1912 7
5 Appliance overview
1. Weighing pan
2. Bubble level
3. Display unit
4. Wall bracket
5. Toddler weighing scales

8 MBB-BAPS-e-1912
6 Overview of displays
MBB 15K2DNM
Display Designation Description
1 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.
2 Stability display Scales are in a steady state
3 Power supply connected Illuminates in the event of power supply
via mains adaptor
4
HOLD function active Hold/Save function active
5
Net weight display Net weight will be displayed
6
Weight value display Current weight value will be displayed
0

MBB-BAPS-e-1912 9
7 Keyboard overview
Button Designation Function
ON/OFF-switch Turn on/off
Zero setting
key Balance will be reset to 0.0 kg. Possible up to max. 2% of maximum load for
verified scales or 2 % or 100% of maximum load for
all other scales (selectable via menu)
HOLD button Hold function/Calculation of a stable weight value
TARE button Tare balance
8 Transportation & Storage
8.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
8.2 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.

10 MBB-BAPS-e-1912
9 Unpacking, Setup and Commissioning
9.1 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, 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.
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.
9.2 Unpacking
Remove the individual components of the balance or the complete balance from the
packaging with care and install at the intended location. When using the power pack,
ensure that the power cable does not produce a risk of stumbling.