KERN MBB 15K5M 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
KERN MBB-M
Version 1.4
02/2013
GB
MBB-M-BA-e-1314

2 MBB-M-BA-e-1314
GB
KERN MBB-M
Version 1.4 02/2013
Operating instructions
Baby weighing scale
Table of Contents
1Technical Data ............................................................................................... 4
2Declaration of conformity ............................................................................. 5
2.1 Explanation of the graphic symbols....................................................................................... 5
3Basic Information (General).......................................................................... 7
3.1 Specific function....................................................................................................................... 7
3.2 Proper use................................................................................................................................. 7
3.3 Improper Use............................................................................................................................. 8
3.4 Warranty.................................................................................................................................... 8
3.5 Monitoring of Test Resources................................................................................................. 8
4Basic Safety Precautions.............................................................................. 9
4.1 Pay attention to the instructions in the Operation Manual .................................................. 9
4.2 Personnel training.................................................................................................................... 9
4.3 Preventing contamination ....................................................................................................... 9
5Appliance overview ..................................................................................... 10
6Overview of displays................................................................................... 11
7Keyboard overview...................................................................................... 12
8Transportation & Storage............................................................................ 13
8.1 Testing upon acceptance ...................................................................................................... 13
8.2 Packaging / return transport ................................................................................................. 13

MBB-M-BA-e-1314 3
9Unpacking, Setup and Commissioning ..................................................... 14
9.1 Installation Site, Location of Use.......................................................................................... 14
9.2 Unpacking ............................................................................................................................... 14
9.3 Scope of supply...................................................................................................................... 15
9.4 Assembly and erection .......................................................................................................... 15
9.5 Assemble the wall bracket..................................................................................................... 16
9.6 Stand assembly (optional)..................................................................................................... 17
9.7 Battery operation.................................................................................................................... 17
9.8 Rechargeable battery operation (optional).......................................................................... 18
9.9 Connecting the power supply............................................................................................... 20
9.10 Initial Commissioning ............................................................................................................ 20
10 Menu overview ............................................................................................. 21
11 Operation...................................................................................................... 22
11.1 Weighing ................................................................................................................................. 22
11.2 Taring....................................................................................................................................... 22
11.3 Hold function (Standstill function) ....................................................................................... 23
12 Error messages............................................................................................ 24
13 Service, maintenance, disposal.................................................................. 25
13.1 Cleaning................................................................................................................................... 25
13.2 Service, maintenance............................................................................................................. 25
13.3 Disposal................................................................................................................................... 25
14 Instant help................................................................................................... 26
15 Verification ................................................................................................... 27
15.1 Adjustment.............................................................................................................................. 27
15.2 Adjustment controls and seals ............................................................................................. 29
15.3 Checking the balance verification settings ......................................................................... 30
15.3.1 Menu overview in service mode (adjustment switch in adjustment position)....................... 30
15.4 Navigation in the menu.......................................................................................................... 31
15.4.1 Exit menu and save.............................................................................................................. 31
15.5 Verification validity period (current status in G)................................................................. 34

4 MBB-M-BA-e-1314
1 Technical Data
KERN
MBB 15K5M
MBB 15K2DM
Display
6-digit
Weighing range (max)
15 kg
6 kg; 15 kg
Minimum load (Min)
100 g
40 g
Verification value (e)
5 g
2 g; 5 g
Reproducibility
5 g
2 g; 5 g
Linearity
10 g
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 15V / 300 mA ( EN60601-1)
Battery operation 6 x 1.5V, size AA
Operating life 98 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
550 x 240
Weight kg (net)
4
Calibrated in accordance
with 90/384/EEC
Medical grade III
Medical product in
accordance with 93/42/EEC
Category I with measuring function
Rechargeable battery
Working life 50 h
Loading time 14 h

MBB-M-BA-e-1314 5
2 Declaration of conformity
Declaration of conformity: See separate document showing serial number of device
CE marking:
0297
93/42/EEC
90/384/EEC
Non-automatic Weighing Instruments Directive
2.1 Explanation of the graphic symbols
This EEC verification mark indicates that these scales are in
conformity with EEC Directive 90 / 384 / EEC for Non-Automatic
Weighing Instruments. Weighing instruments bearing this mark
are approved for medical purposes within the European Union.
SN WOC 09000100
Designation of the serial number of every device, applied at the
device and on the packaging
(Number as an example)
2009-10
Identification of the manufacturing date of the medical product.
Year and month here as example
“Please note the accompanying documents“
or “Observe operating instructions”
Kern & Sohn GmbH
D–72336 Baligen,Germany
www.kern-sohn.com
Identification of manufacturer of medical product including
address
year
0103
M

6 MBB-M-BA-e-1314
“Electro-medical appliance“
with attachment for type B
Device protection category II
Dispose of old appliances separately from your household
waste!l!
Instead, take them to communal collection points.
Temperature limit indicating the upper and the lower limit
(storage temperature on packaging)
(Temperature serving as an example)
15 V DC / 300 mA
Display of supply voltage for scales with polarity display
(Polarity and values serving as an example)

MBB-M-BA-e-1314 7
3 Basic Information (General)
Weighing instruments have to be verified for the purposes stated
below in accordance with Directive 90/384/EEC. Article 1,
paragraph 4. “Determination of mass in the practice of medicine
that is, weighing patients for reasons of medical supervision
during medical surveillance, examination and treatment.”
3.1 Specific function
Indication
Determining the body weight in the medical practice area.
Operated as “non-automatic weighing instrument” which
means that you have to carefully put he baby in the centre of
the weighing pan. Once a steady display value is shown, you
can read the weight value.
Contra-
indication
No contraindication known
3.2 Proper use
These scales serve as a means of determining the weight of babies in medical
treatment rooms. The scales are suitable for recognising, preventing and controlling
illnesses.
Scales fitted with a serial interface may only be connected to
appliances in compliance with Directive EN60601-1.
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!

8 MBB-M-BA-e-1314
3.3 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.
3.4 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
3.5 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.

MBB-M-BA-e-1314 9
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.
4.2 Personnel training
The medical staff must apply and follow the operating instructions for proper use
and care of the product.
4.3 Preventing contamination
To prevent cross-contamination (fungal skin infections, …), clean the seating surface
or weighing platform every time.
Recommendation: after a weighing procedure that could potentially result in
contamination (e. g. after weighing that involves direct skin contact).

10 MBB-M-BA-e-1314
5 Appliance overview
2
1
3
4
5
1. Weighing pan
2. Bubble level
3. Display unit
4. Stand (optional)
5. Wall bracket

MBB-M-BA-e-1314 11
6 Overview of displays
Display
Designation
Description
1
0
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

12 MBB-M-BA-e-1314
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

MBB-M-BA-e-1314 13
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.

14 MBB-M-BA-e-1314
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.

MBB-M-BA-e-1314 15
9.3 Scope of supply
Balance
Power unit (in conformity with EN 60601-1), including fuse and LED
Wall bracket
Operating instructions
9.4 Assembly and erection
Make sure that the weighing pan is exactly horizontal.
Set the adjustable rubber feet of the baby scale in such a way that the air bubble
inside the spirit level (on the right next to the cable outlet to the control unit) is in the
centre.
1. Push the front of the weighing
pan (arrow) up to the stop
across the weighing platform.
2. Screw in the locking screw at
the bottom of the weighing pan
into the mount.

16 MBB-M-BA-e-1314
3. Then screw in the
corresponding locking screw to
achieve a tight fit.
4. Use the supplied knurled
screws to attach the wall
bracket to the terminal.
9.5 Assemble the wall bracket

MBB-M-BA-e-1314 17
9.6 Stand assembly (optional)
Use the 4 screws to attach
the stand to the bottom of
the scale.
Remove the two lateral
rubber plugs from the
display unit.
Secure the display unit with
the two black rotary knobs
to the fixing device.
Position display unit with the
rotary knobs.
9.7 Battery operation
On models where the back of the display unit is not directly accessible, remove the
two black rotary knobs from both sides of the display unit in order to open the battery
compartment and remove the display unit from the holder. Remove battery cover
from under the display unit. Insert 6 x 1.5V AA batteries into the holder. Replace
battery cover and screw the display unit back into the holder using the black rotary
knobs.
In order to save the battery, the balance switches automatically off after 3 minutes
without weighing. Further shutdown times can be set in the Menu (Function "A.OFF"),
see Section 10.
If the batteries are run down, "LO" appears in the display. To turn
off scales, press the
OFF
ON
button and immediately change the
batteries.
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.

18 MBB-M-BA-e-1314
9.8 Rechargeable battery operation (optional)
When an optional rechargeable battery is used, proceed as follows:
On models where the back of the display unit is not directly accessible, remove the
two black rotary knobs from both sides of the display unit in order to open the battery
compartment and remove the display unit from the holder.
Lift-off the battery cover on the lower
side of the balance
Carefully take out the battery holder
(1)
Carefully pull-out plug (2) from the
connection CN 4 (3)
1

MBB-M-BA-e-1314 19
Carefully insert the rechargeable
battery block and insert plug into
connection CN 3
Ensure that the cables are not
squeezed
Close the battery cover
If the rechargeable battery is exhausted, „LO“ is displayed. The
rechargeable battery is loaded via the provided plug-in power
supply unit (loading time 23 h for a complete loading).
If the balance is not used for a longer time, take out the
rechargeable battery and store it separately. Leaking liquid could
damage the balance.

20 MBB-M-BA-e-1314
9.9 Connecting the power supply
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.
Only approved genuine KERN power supply units may be used in compliance with
Directive EN 60601-1.
9.10 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. 1). 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.