KERN MBA User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Baby scale
KERN MBA
Type TMBA-B
Version 1.8
2021-02
GB
TMBA_B-BA-d-2118

2 TMBA_B-BA-e-2118
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TMBA_B-BA-e-2118 3
GB
KERN MBA
Version 1.82021-02
Operating manual
Baby scale
Contents
1Technical data................................................................................................ 5
2Declaration of conformity ............................................................................. 6
2.1 Explanation of the graphic symbols for medical products.................................................. 6
3Appliance overview ....................................................................................... 9
3.1 Dimensions ............................................................................................................................. 10
3.2 Overview of display................................................................................................................ 10
3.3 Keyboard overview................................................................................................................. 12
4Basic Information (General)........................................................................ 13
4.1 Specific function..................................................................................................................... 13
4.2 Intended use ........................................................................................................................... 13
4.3 Improper Use / Contraindications......................................................................................... 14
4.4 Warranty.................................................................................................................................. 14
4.5 Monitoring of Test Resources............................................................................................... 15
5Basic Safety Precautions............................................................................ 16
5.1 Pay attention to the instructions in the Operation Manual................................................ 16
5.2 Personnel training.................................................................................................................. 16
5.3 Preventing contamination ..................................................................................................... 16
5.4 Preparing for use.................................................................................................................... 16
6Electromagnetic compatibility (EMC)......................................................... 17
6.1 General hints........................................................................................................................... 17
6.2 Electromagnetic interferences.............................................................................................. 19
6.2.1 Degradation of performance..................................................................................................... 19
6.3 Electromagnetic noise immunity.......................................................................................... 20
6.3.1 Crucial features of performance............................................................................................... 23
6.4 Minimum distances................................................................................................................ 23
7Transport and storage................................................................................. 24
7.1 Testing upon acceptance ...................................................................................................... 24
7.2 Packaging / return transport ................................................................................................. 24
8Unpacking, Setup and Commissioning ..................................................... 25
8.1 Installation Site, Location of Use.......................................................................................... 25
8.2 Unpacking ............................................................................................................................... 25
8.3 Scope of delivery.................................................................................................................... 25
8.4 Installation............................................................................................................................... 26
8.5 Battery operation.................................................................................................................... 26
8.6 Mains connection (option)..................................................................................................... 29
8.7 Optional equipment mains adapters.................................................................................... 29
8.8 Initial Commissioning ............................................................................................................ 29

4 TMBA_B-BA-e-2118
9Operation...................................................................................................... 29
9.1 Weighing ................................................................................................................................. 29
9.2 Taring....................................................................................................................................... 30
9.3 Hold function (Standstill function) ....................................................................................... 31
9.4 Auto off (Automatic switch-off function) ............................................................................. 32
9.5 Using the optional equipment height measuring rod MBA-A01........................................ 33
10 Menu ............................................................................................................. 34
10.1 Navigation in the menu.......................................................................................................... 34
10.2 Menu overview........................................................................................................................ 35
11 Error reports................................................................................................. 36
12 Servicing, maintenance, disposal .............................................................. 37
12.1 Cleaning .................................................................................................................................. 37
12.2 Cleaning / disinfecting........................................................................................................... 37
12.3 Sterilisation............................................................................................................................. 37
12.4 Servicing, maintenance ......................................................................................................... 37
12.5 Disposal................................................................................................................................... 37
13 Instant help................................................................................................... 38
14 Verification................................................................................................... 39
14.1 Verification validity period (current status in D)................................................................. 40
15 Adjustment................................................................................................... 41
16 Equipment (optional)................................................................................... 43

TMBA_B-BA-e-2118 5
1 Technical data
KERN MBA 10K-3M
Item no./ Type TMBA 15K-3M-B
Weighing range (max)
15 kg
Minimum load (Min)
0.1 kg
Readability (d)
0.005 kg
Verification value (e)
0.005 kg
Reproducibility
0.005 kg
Linearity
0.005 kg
Display
LCD with 25mm high digits
Recommended adjustment
weight, not added (class) 15 kg
(M1)
Stabilization time (typical)
3 sec.
Warm-up time
10 min
Operating temperature
10° C …. + 40° C
Storage and Transport
Environment
-10 to +60°C, and 30% to 90% relative humidity
Atmospheric pressure: 700-1060 hPa
Humidity of air
max. 80 % (not condensing)
Atmospheric pressure (kPa)
70kpa-106kpa
Input Voltage
100 V - 240 V, 50 / 60 Hz
Output Voltage
power supply
DC 12V/500mA
Battery use
6 x 1,5 V AA
battery working period:
50 hours
Auto Off
can be adjusted after "30, 60, 180" sec. or "Off" without load
change
Dimensions fully mounted
(W x D x H) mm 890 x 470 x 175
Baby weighing pan
(B x D x H) mm
600 x 260
Weight kg (net)
4.6
Verification in accordance
with 2014/31/EU Class III
Medical product in
accordance with 93/42/EEC Category Im (with measuring function)
Height measuring rod,
optional MBA-A01, Measuring range 40 – 80 cm

6 TMBA_B-BA-e-2118
2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce
For verified weighing scales (= weighing scales assessed for conformity) a
declaration of conformity is included in the scope of delivery.
Only these balances are medical products.
2.1 Explanation of the graphic symbols for medical products
All medical balances with this mark fulfill the following
guidelines:
1. 2014/31/EU: Guideline for non-automatic
balances
2. 93/42/EC: Guideline for medical products
Balances which carry this mark, are conformity-
evaluated as per accuracy class III of the EC-guideline
2014/31/EU.
WF 202795
Designation of the serial number of every device, applied at the device and on the packaging
(Number as an example)
2021-02
Identification of the manufacturing date of the medical
product.
(Year and month here as example)

TMBA_B-BA-e-2118 7
“Please note the accompanying documents”
or “Please note operating instructions”
„Observe operating instructions”
„Observe operating instructions
Kern & Sohn GmbH
Ziegelei 1,
72336 Balingen, Germany
www.kern-sohn.com
Identification of manufacturer of medical product
including address
Electro-medical appliance
with attachment for type B
Device protection category II
Dispose of old appliances separately from your
household waste!
Instead, take them to communal collection points.

8 TMBA_B-BA-e-2118
12 V DC / 500 mA
Display of supply voltage for scales with polarity display
Supply voltage direct current
Information
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!
Level balance before use

TMBA_B-BA-e-2118 9
3 Appliance overview
1. Height measuring rod (optional)
2. Baby weighing pan
3. Keyboard
4. LED
5. Bubble level
6. Mains connection
7. Rubber feet (height adjustable)
8. Battery compartment / adjustment switch inside
9. Not documented

10 TMBA_B-BA-e-2118
3.1 Dimensions
3.2 Overview of display
Display Designation Description
GROSS Gross weight display Illuminated when gross weight of the
baby is displayed
NET Net weight display Illuminated when net weight of the baby
is displayed
Illuminated after weighing scale was
tared
TARE Taring display Illuminated after weighing scale was
tared
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.