KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
email: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Internet: www.kern-sohn.com
Operating instructions
Medical personal scales
KERN MCB, MPT
Version 1.8
03/2014
Medical chair scales
GB
Fax: +49-[0]7433-9933-149
MCB_MPT-BA-e-1418
GB
KERN MCB, MPT
scales
Version 1.8 03/2014
Operating instructions chair scales, personal
able of Contents
T
1 Technical Data ............................................................................................... 4
2 Declaration of conformity ............................................................................. 5
2.1 Explanation of the graphic symbols ....................................................................................... 5
3 Basic Information (General) .......................................................................... 7
3.1 Specific function ....................................................................................................................... 7
3.2 Proper use ................................................................................................................................. 7
3.3 Improper Use............................................................................................................................. 8
3.4 Warranty .................................................................................................................................... 9
3.5 Monitoring of Test Resources ................................................................................................. 9
4 Basic Safety Precautions ............................................................................ 10
4.1 Pay attention to the instructions in the Operation Manual ................................................ 10
4.2 Personnel training .................................................................................................................. 10
4.3 Preventing contamination ..................................................................................................... 10
5 EMC guidance and manufacturer's declaration ........................................ 11
6 Appliance overview ..................................................................................... 15
7 Overview of displays ................................................................................... 17
8 Keyboard overview ...................................................................................... 18
9 Transportation & Storage ............................................................................ 19
9.1 Testing upon acceptance ...................................................................................................... 19
9.2 Packaging / return transport ................................................................................................. 19
10 Unpacking, Setup and Commissioning ..................................................... 20
10.1 Place of installation / place of operation .............................................................................. 20
10.2 Unpacking ............................................................................................................................... 20
10.3 Scope of delivery chair scales .............................................................................................. 20
10.4 Installing the chair scales ...................................................................................................... 21
10.4.1 Levelliing............................................................................................................................... 22
10.5 Scope of delivery, personal scales ....................................................................................... 23
10.6 Installing the personal scales ............................................................................................... 23
10.7 Assemble the wall bracket ..................................................................................................... 23
10.8 Attaching an optional stand .................................................................................................. 24
10.9 Battery operation .................................................................................................................... 24
10.10 Operation using a recha rgeable battery (optional) ............................................................. 26
10.10.1 Battery operation .................................................................................................................. 27
10.10.2 Rechargeable battery operation (optional) ........................................................................... 29
10.11 Connecting the power supply ............................................................................................... 31
10.12 Initial Commissioning ............................................................................................................ 31
2 MCB_MPT-BA-e-1418
11 Menu overview ............................................................................................. 32
12 Operation ...................................................................................................... 33
12.1 Weighing ................................................................................................................................. 33
12.2 Taring ....................................................................................................................................... 33
12.3 Hold function (Standstill function) ....................................................................................... 34
12.4 Calculation of the Body Mass Index ..................................................................................... 35
12.4.1 Classification of BMI values ................................................................................................. 36
12.5 PRE-TARE function ................................................................................................................ 37
12.5.1 PRE-TARE function with 5 memories .................................................................................. 38
12.6 Print function .......................................................................................................................... 40
12.6.1 Interface parameters for RS232 ........................................................................................... 41
13 Service, maintenance, disposal .................................................................. 42
13.1 Cleaning................................................................................................................................... 42
13.2 Cleaning/disinfection ............................................................................................................. 42
13.3 Service, maintenance ............................................................................................................. 42
13.4 Disposal ................................................................................................................................... 42
14 Error messages ............................................................................................ 43
15 Instant help ................................................................................................... 44
16 Verification ................................................................................................... 45
16.1 Adjustment .............................................................................................................................. 45
16.2 Adjustment controls and seals ............................................................................................. 47
16.3 Checking the balance verification settings ......................................................................... 48
16.3.1 Menu overview in service mode (adjustment switch in adjustment position) ..................... 48
16.4 Navigation in the menu .......................................................................................................... 49
16.4.1 Exit menu and save .............................................................................................................. 49
16.5 Verification validity period (current status in G) ................................................................. 52
MCB_MPT-BA-e-1418 3
1 Technical Data
Battery operation: 6 x 1,5 V size AA
Service life 50 h
Service life 50 h
(B x D x H) mm
KERN MCB 300K100M MPT 300K100M
Readability (d) 100 g
Weighing r ange (max) 300 kg
Minimum weight (min) 2 kg
Verification value (e) 100g
Verification class III
Recommended adjustment weight,
(Class)
Weighing Units kg
Stabilization time (typical) 2-3 sec.
Warm-up time 10 min
Supply voltage: 100 V – 240 V AC 50/60 Hz
Electric Supply
Auto Off After 3 min without load change (adjust able)
Operating temperature + 5°C … + 35°C
Storage temperature - 20°C … + 60°C
Humidity of air max. 80 % (not condensing)
Dimensions (B x D x H) mm 630 x 850 x 960 340 x 450 x 90
Mains adapter: 15 V / 300 mA (EN60601-1)
300 kg
(M1)
Dimensions display unit
Dimensions seating surface /
Weighing plat form
Weight kg (net) 26 8,5
Calibrated in accordance with
2009/23/EC
Medical product in accordance with
93/42/EEC
Rechargeable battery operation
(optional)
4 MCB_MPT-BA-e-1418
210 x 110 x 50
380 x 360 340 x 450 x 90
Medical grade III
Category I with measuring function
Loading time: 14 h;
operating time: 50 h;
7.2 V / 2000 mA
Loading time: 14 h;
operating time: 50 h;
7.2 V / 2000 mA
This EEC verification mark indicates that t hes e scales ar e in
are approved for medical purposes within the European Union.
Designation of the serial number of every device, applied at the
Number here as example
2014-03
Identification of the m anufacturing date of t he m edical produc t .
“Please note the accompanying documents“
www.kern-sohn.com
Identification of manufacturer of medical product including
M
year
2 Declaration of c onf ormity
Declaration of conformity: See separate document showing serial number of device
CE marking:
0297
93/42/EEC
0103
2009/23/EC
Non-automatic Weighing Instruments Directive
2.1 Explanation of the graphic symbols
conformit y with EEC Directive 2009/23/EC for Non-Automatic
Weighing Instruments.
SN WOC 14000100
device and on the packaging
Weighing inst ruments bearing this mark
Year and month here as example
or “Observe operating instruct ions”
address
Kern & Sohn GmbH
D–72336 Baligen,Germany
MCB_MPT-BA-e-1418 5
Please note operating instructions
Please note operating instructions
“Electro-medical appliance“
Device protection category II
Dispose of old appliances separately from your household waste
Instead, take them to c om m unal collect ion points .
+70°C
-30°C
15 V DC / 300 mA
with attachment for type B
!!!
Temperature limit indicating the upper and the lower limit
(storage temperatur e on packaging)
(Temperature serving as an example)
Display of supply voltage for scales with polarity display
(Polarity and values serving as an example)
6 MCB_MPT-BA-e-1418
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.”
Indication
Determining the body weight in the medical practice area.
be read after a steady display value has been achieved.
Contra-
No contraindication known.
Scales fitted with a serial interface may only be connected to
3 Basic Information (General)
Weighing instruments have to be verified for the purposes stated
below in accordance with Directive 2009/23/EC.
3.1 Specific function
To be used as “non-automatic weighing instruments“, that is,
a person will step or sit down carefully onto the centre of the
seating surface or weighing platform. The weighing value can
indication
3.2 Proper use
These scales serve as a means of determining the weight of people in a seated or
standing position, in medical treatment rooms. The scales are suitable for
recognising, preventing and controlling illnesses.
appliances in compliance with Directive EN60601-1.
The person to be weighed should be seated in the centre of the seating surface or
step onto the weighing platform and sit or stand still.
As soon as a stable weighing value is reached the weighing value can be read.
The scales are designed for long-term usage.
Scales may only be used for people who are able to sit or stand
still.
The balances should be checked for correct condition prior to each utilisation by a
person familiar with proper operation of the balance.
MCB_MPT-BA-e-1418 7
When the scale doesn’t connect with the transmission cable,
please do not touch the transmission port to prevent ESD
interference occurs.
The chair scales may not be used for the transport of people!
As long as the patient is remaining on the chair scales, the
wheel brakes must be locked without fail.
Do not step onto the foot rests when stepping or leaving the
chair scales!
3.3 Improper Use
Do not use these scales for dynamic weighing processes.
Do not leave continuous loads on the seating surface or weighing plate. This may
damage the measuring system.
Impacts and overloading exceeding the stated maximum load (max) of the seating
surface or 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.
Do not modify the construction of the scales. This may lead to incorrect weighing
results, safety-related faults and destruction of the balances.
The balances may only be used according to the described conditions. Other areas
of use must be released by KERN in writing.
8 MCB_MPT-BA-e-1418
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
Modification or opening of appliances
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 of scales
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.
MCB_MPT-BA-e-1418 9
To prevent cross-contamination (fungal skin infections, …), clean the seating surface
contamination (e. g. after weighing that involves direct skin contact).
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
4.2 Personnel training
The medical staff must apply and follow the operating instructions for proper use and
care of the product.
balances.
Versions in other languages are non-
binding translations.
The only binding version is the original
document in German.
4.3 Preventing contamination
or weighing platform every time.
Recommendation: after a weighing procedure that could potentially result in
10 MCB_MPT-BA-e-1418
Guidance and manufacturer’s declaration-electromagnetic emissions
The MCB 300K100M, MPT 300K100M is intended for use in the
Electromagnetic environmentguidance
RF emissions
Group 1
The MCB 300K100M, MPT 300K100M
Class B
The MCB 300K100M, MPT 300K100M is
Harmonic
61000-3-2
Class A
Voltage
Compliance
5 EMC guidance and manufacturer's declaration
electromagnetic environment specified below.
The customer or the user of the MCB 300K100M, MPT 300K100M should
assure that it is used in such an environment.
Emission test Compliance
CISPR 11
RF emissions
CISPR 11
emissions IEC
fluctuations
/flicker emissions
IEC 61000-3-3
uses RF energy only for its internal
function. Therefore, its RF emissions are
very low and are not likely to cause any
interference in nearby electronic
equipment.
suitable for use in all establishments,
including domestic establishments and
those directly connected to the public
low-voltage power supply network that
supplies buildings used for domestic
purposes.
MCB_MPT-BA-e-1418 11
Guidance and manufacturer’s declaration-electromagnetic immunity
Electrostatic
± 6 kV contact
± 6 kV contact
Floors should be wood,
Electrical fast
± 2kV for power
± 2kV for power
Mains power quality should be
Surge IEC 61000-4-5
± 1kV line(s) to line(s)
± 1kV differential
Mains power quality should be
Voltage Dips, short
<5% UT(>95% dip in
<5% UT(>95% dip in
Mains power quality should be
Power frequency(50/60
3 A/m
3 A/m
MCB 300K100M, MPT
NOTE UT is the a.c. mains voltage prior to application of the test level.
The MCB 300K100M, MPT 300K100M is intended for use in the electromagnetic environment
specified below.
The customer or the user of the MCB 300K100M, MPT 300K100M should assure that it is used in
such an environment.
Immunity test
discharge(ESD)
IEC 61000-4-2
transient/burst IEC 610004-4
interruptions and voltage
variations on power supply
input lines IEC 61000-4-11
IEC 60601 test
level
± 8 kV air
supply lines + 1kV for
input/output lines
± 2kV line(s) to earth
UT) for 0,5 cycle 40%
UT(60% dip in UT) for
5 cycles 70% UT(30%
dip in UT) for 25
cycles <5% UT(>95%
dip in UT) for 5 s
Compliance level
± 8 kV air
supply lines Not
applicable
mode Not applicable
UT) for 0,5 cycle 40%
UT(60% dip in UT) for
5 cycles 70% UT(30%
dip in UT) for 25
cycles <5% UT(>95%
dip in UT) for 5 s
Electromagnetic
environment-guidance
concrete or ceramic tile. If floors
are covered with synthetic
material, the relative humidity
should be at least 30%
that of a typical commercial or
hospital environment.
that of a typical commercial or
hospital environment.
that of a typical commercial or
hospital environment. If the
user of the MCB 300K100M,
MPT 300K100M
requires continued operation
during power mains
interruptions, it is
recommended that the MCB
300K100M, MPT 300K100M
be powered from an
uninterruptible power supply or
a battery.
Hz) magnetic field IEC
61000-4-8
12 MCB_MPT-BA-e-1418
300K100M
power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical commercial
or hospital environment.
The MCB 300K100M, MPT 300K100M is intended for use in the electromagnetic environment
Portable and mobile RF communications
Guidance and manufacturer’s declaration-electromagnetic immunity
specified below.
The customer or the user of the MCB 300K100M, MPT 300K100M should assure that is used in
such and environment.
Immunity test IEC 60601 test level Compliance level Electr omagnetic environment-guidance
Conducted RF
IEC 61000-4-6
Radiated RF IEC
61000-4-3
3 Vrms
150 KHz to 80 MHz
3 V/m 80MHz to
2,5 GHz
3 Vrms
3 V/m
equipment should be used no closer to
any part of the MCB 300K100M, MPT
300K100M
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended separation distance:
d = 1,2 √P
d = 1,2 √P 80MHz to 800 MHz
d = 2,3 √P 800MHz to 2,5 GHz
Where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter manufacturer
and d is the recommended separation
distance in metres (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey
compliance level in each frequency
range
Interference may occur in the vicinity of
equipment marked with the following
symbol:
a
, should be less than the
b
.
NOTE1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
a Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and
land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted
theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an
electromagnetic site survey should be considered. If the measured field strength in the location in which
the MCB 300K100M, MPT 300K100M is used exceeds the applicable RF compliance level above, the
MCB 300K100M, MPT 300K100M should be observed to verify normal operation. If abnormal
performance is observed, additional measures my be necessary, such as re-orienting or relocating the
MCB 300K100M, MPT 300K100M
b Over the frequency range 150 kHz to 80 MHz, field strengths should be les than 3 V/m.
MCB_MPT-BA-e-1418 13
The MCB 300K100M, MPT 300K100M is intended for use in an electromagnetic environment in which radiated
Rated maximum output
Separation distance according to frequency of transmitter m
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in
and reflection from structures, objects and people.
Recommended separation distance between
portable and mobile RF communications equipment and the MCB 300K100M, MPT 300K100M
RF disturbances are controlled. The customer or the user of the MCB 300K100M, MPT 300K100M can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the MCB 300K100M, MPT 300K100M as recommended below,
according to the maximum output power of the communications equipment.
power of transmitter
W
0,01 0,12 0,12 0,23
0,1 0,38 0,38 0,73
1 1,2 1,2 2,3
150 kHz to 80 MHz
d =1,2√P
80 MHz to 800 MHz
d =1,2√P
800 MHz to 2,5 GHz
d =2,3√P
10 3,8 3,8 7,3
100 12 12 23
metres (m) can be estimated using the equation applicable to the frequency of the transmitter, where p is the
maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.
NOTE1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
14 MCB_MPT-BA-e-1418
5
4
3
2
1
6
6 Appliance overview
Chair scales MCB
1. Gripping handles
2. Folding arm rests
3. Seating surface
4. Locking castors
5. Foot rests
6. Display unit at rear
MCB_MPT-BA-e-1418 15
5
4
3
2
1
2
Personal scales MPT
1. Weighing plate
2. Bubble level
3. Height adjustable rubber feet
4. Gripping handle
5. Display unit
16 MCB_MPT-BA-e-1418
0
7 Overview of displays
Display Designation Description
Stability display Scales are in a steady state
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.
Power supply connected
´
BMI function active Calculated BMI value
HOLD function active Hold/Save function active
PRE-Tare function active Preset tare value is enabled
Illuminates in the event of power supply via
mains adaptor
Net weight display Net weight will be displayed
Weight value display Current weight value will be displayed
MCB_MPT-BA-e-1418 17
OFF
ON
PRINT
BMI
HOLD
PRE-
TARE
T
ARE
CLEAR
ENTER
8 Keyboard overview
Button Designation Function
ON/OFF-
Turn on/off
switch
PRINT button Data transfer via interface
BMI button Calculation of the Body Mass Index
HOLD button Hold function/Calculation of a stable weight value
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)
Save button Retrieve memory 1-5
…
Pretare
Call tare function with defined values
button
Tare button Tare balance
CLEAR
This deletes manual number entry
button
ENTER-key Import of numeric entry
Numeric keys Numeric entry
18 MCB_MPT-BA-e-1418
9 Transportation & Storage
9.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
9.2 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 platform, power unit etc.
against shifting and damage.
MCB_MPT-BA-e-1418 19
10 Unpacking, Setup and Commissioning
10.1 Place of installation / place of operation
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.
10.2 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.
10.3 Scope of delivery chair scales
Balance
Operating instructions
Mains adapter
20 MCB_MPT-BA-e-1418
10.4 Installing the chair scales
In delivery state the balance is adjusted in a manner that when placed on an
even surface the air bubble of the water balance is in the prescribed circle.
To check place scales on an even surface.
Check if the air bubble of the level is within the prescribed circle.
If the air bubble in the level is not within the prescribed circle, the
wheel height has to be adjusted, see chap. 9.4.1.
Check levelling regularly.
MCB_MPT-BA-e-1418 21
with the workings of weighing scales.
Place scales on an even surface.
Arrest the brake
10.4.1 Levelliing
• The wheel height has to be adjusted for levelling.
• Levelling is restricted to specialist staff possessing well acquainted
Turn the wheel (1) clockwise until the air bubble of the water balance
is in the prescribed circle
Screw counternut (2) upwards till to the stop and it with a suitable
tool (e.g. pliers).
Gap width must not exceed 15 mm!
22 MCB_MPT-BA-e-1418
10.5 Scope of delivery, personal scales
Balance
Operating instructions
Mains adapter
Wall bracket
4 rubber feet
10.6 Installing the personal scales
10.7 Assemble the wall bracket
Place scales on an even
surface
Level balance with foot
screws until the air
bubble of the water
balance is in the
prescribed circle.
MCB_MPT-BA-e-1418 23
Secure circular plate with
10.8 Attaching an optional stand
screws on the aluminium
section
Secure wall fixing device
with screws at the top on
the aluminium section
Remove the two lateral
rubber plugs from the
display unit.
Secure the display unit with
the two rotary knobs to the
fixing device.
Position display unit with
the rotary knobs.
Secure cable with cable
clips
10.9 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 the battery cover
[2] from the underside of the
scales
Take out the battery holder
24 MCB_MPT-BA-e-1418
Insert 6 batteries (1.5 V AA)
Ensure that the batteries
are inserted in the correct
direction
Insert the battery holder with
the inserted batteries in the
display unit
Close the battery cover
If the batteries are run down, "LO" appears in the display.
ON
To turn off scales, press the
OFF
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.
MCB_MPT-BA-e-1418 25
Connection CN 3 for
Connection CN 4 for
10.10 Operation us ing a rechargeable battery (optional) In devices with an optional re chargeable battery operation:
rechargeable battery
batteries (AA x 6)
26 MCB_MPT-BA-e-1418
battery cover on the lower
10.10.1 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.
Lift-off the
side of the balance
Carefully take out the battery holder
(1)
Insert 6 batteries (AA).
Ensure that the batteries are
inserted in the correct direction
MCB_MPT-BA-e-1418 27
Insert battery holder with the inserted
batteries into the display unit
Ensure that the cables are not
squeezed
Close the battery cover
If the batteries are run down, "LO" appears in the display. To turn
ON
off, press the
OFF
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.
28 MCB_MPT-BA-e-1418
off the battery cover on the lower
1
10.10.2 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-
side of the balance
Carefully take out the battery holder
(1)
Carefully pull-out plug (2) from the
connection CN 4 (3)
MCB_MPT-BA-e-1418 29
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 14 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.
30 MCB_MPT-BA-e-1418
Power is supplied via the external mains adapter which also
compliance with Directive EN 60601-1.
In order to obtain exact results with the electronic balances, your
The value of gravity acceleration is shown on the type plate.
10.11 Connecting the power supply
10.12 Initial Commissioning
serves to isolate the scales from the mains.
The stated voltage value must be the same as the local voltage.
Only approved genuine KERN power supply units may be used in
balance must have reached the operating temperature (see
warming up time chap. 1). During this warming up time the
balances 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.
MCB_MPT-BA-e-1418 31
a
z000
��
OFF
ON
SETUP
If End is selected, finish set up by pressing the
button.
0.0 kg
11 Menu overview
Start balance by pressing
Press for 3 sec., “SETUP“ will be displayed.
Select parameter by using
TARE
( ) and
HOLD
( ), as
described.
Confirm the selected parameter by pressing
TARE
( ).
AOFF
bUrr
End
Auto off: 120 sec / 180 sec / 240 sec / 300 s ec / OFF
Audio signal: ON/OFF
Exit menu
32 MCB_MPT-BA-e-1418
HOLD
P-1.32
0
0.0
Have person sit in the centre of the scales.
Once the weighing process is completed fold up the foot rests.
Have person stand in the centre of the scales
0.5
0
0.0
TARE
92.5
12 Operation
12.1 Weighing
Start balance by pressing
The balance carry out a segment test, then the program
version is displayed.
The scales are ready for operation as soon as the weight
display for “0.0kg“ has appeared.
ON
OFF
Chair scales
Personal scales
12.2 Taring
The button can be used to set the balance to zero at any
time.
Fold down the foot rests and place the patient’s feet on the
respective foot rest.
Wait for the rest position display , then read the weighing
result.
Wait for the rest position display , then read the weighing
result.
If a person is heavier than the maximum weighing range, “Err”
(overload) will appear on the display screen.
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 weighing.
Place an object (such as a towel or support) on the seating
surface or weighing platform.
Press
, the zero display appears.
Have person sit or stand in the centre of the scales.
MCB_MPT-BA-e-1418 33
Wait until the standstill display appears, then read the
weighing result.
The balance has an integrated standstill function (mean value calculation). This
still on the scales.
0
0.0
HOLD
62.5
HOLD
62.5
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
12.3 Hold function (Standstill function)
allows correct weighing determination of a person although the latter is not keeping
ON
OFF
Start balance by pressing
Wait for the rest position display .
Have person sit or stand in the centre of the seating surface
or weighing platform.
Press
A triangle starts to flash in the display, during this time the
balance will record several measuring values and will then
display the calculated average value.
TARE
.
HOLD
By pressing the
returns to the normal weighing mode.
Press the
often as required.
There is no average value calculation in the event of too much
movement.
HOLD
button once more to repeat this function as
button several times, the balance
34 MCB_MPT-BA-e-1418
0
0.0
OFF
ON
0
15.0
165.0
BMI
106.0
12.2
0
15.0
12.4 Calculation of the Body Mass Index
Start balance by pressing
Wait for the rest position display .
Have person sit or stand in the centre of the seating
surface or weighing platform.
Wait for the rest position display .
Press
The first decimal place of the most recently entered body
height is flashing.
It should be noted that a reliable calculation of the BMI is only
possible with a body height of between 100 cm and 250 cm
and a weight >10kg.
Go to the numeric keypad and enter a different value.
Confirm with
The BMI of the person will be shown.
Press again
mode.
ENTER
key
BMI
and the scales will return to weighing
MCB_MPT-BA-e-1418 35
overweight
12.4.1 Classification of BMI values
Weight classification for adults over 18 years of age using the BMI in accordance
with WHO, 2000 EK IV and WHO 2004.
Categorie BMI ( kg/m2) Risk of diseases associated with
Underweight < 18,5 low
Normal weight 18.5 – 24.9 Average
Overweight
Pre-adipose
Adipose degree I
Adipose degree II
Adipose degree III
> 25.0
25.0 – 29.9
30.0 – 34.9
35.0 – 39.9
> 40
A bit high
High
High
Very high
36 MCB_MPT-BA-e-1418
If the tare weight is known (rubber mat, clothing…..) . you may inter the value
manually.
0
0.0
Wait for the rest position display .
000.0
The most recently applied value or “000.0“ will appear.
Go to the numeric keypad and enter a new value.
-1.0
The entered value appears on the display with a minus in front.
67.0
Have the person sit or stand on the scales
68.0
12.5 PRE-TARE function
Start balance by pressing
Press
A flashing display appears.
A small arrow will be shown on the display under “PRE-TARE”
and under “NET” as long as the PRE-Tare function is enabled.
Confirm value with
PRE-
TARE
briefly.
ENTER
ON
OFF
The weight value reduced by the previously entered tare
value will be shown.
PRE-
To return to normal weighing mode, again press the
button.
TARE
MCB_MPT-BA-e-1418 37
This gives the option of storing 5 different tare values that can be retrieved when
Saving PPE-TARE
0
0.0
Weighing platform is unloaded and indicates “0.0 kg“.
0
10.0
Place the weight to be saved on the weighing platform and
0
10.0
Briefly press the numeric key ( 1..5 ) that you wish to use
0
10.0
0
0.0
Once flashing has finished, press the same numeric key
12.5.1 PRE-TARE function with 5 memories
required.
values
wait until the weight display is steady.
Keep pressing the button until “ni“ (M) appears.
for saving the value. The weight value displayed
beforehand will be flashing for approx. 3 seconds.
as above.
This will save the weighing value to the memory (audio
sound).
The weighing value will be indicated.
On removal of the weight, “0.0kg“ will appear.
CLEAR
Press
to return to weighing mode, without saving.
38 MCB_MPT-BA-e-1418
Retrieving PPE-
0
0.0
Weighing platform is unloaded and indicates “0.0 kg“.
1
0.
0
0
10.0
Briefly press the numeric key ( 1..5 ) under which number
92.5
0
0.0
Have the person sit or stand on the scales.
TARE values from
the memory
Press and hold the
flashing on the display.
the Pre-Tare value was saved.
The saved weight value will be flashing.
In addition there will be a flashing triangle under “PRETARE“ and “NET“.
Import value with
Value will be shown with a negative sign.
TARE
ENTER
PRE-
button until “ni“ appears and starts
.
Only the person’s weight will be indicated.
To return to weighing mode, unload the scales and press
PRETARE.
MCB_MPT-BA-e-1418 39
Printout from PRE-
PRINT
G
88.8
kg
Gross weight
T
2.0
kg
Taring weight
N
86.8
kg
Net weight
180.0
cm
Size of patient
24.4
BMI
BMI value
TARE memory
PRE-
Press
TARE
and hold until “ni“ (M) appears on the display.
To issue the values saved to the 5 memories, briefly press
the
button.
Example:
M1 0.0 kg
M2 7.0 kg
M3 10.0 kg
M4 30.0 kg
M5 50.0 kg
12.6 Print function
This action requires the RS232 interface cable available as an accessory which has
to be connected via the round plug to the rear end of the terminal.
(Loosen the two screws from the side, take off the display unit, insert the cable and
screw the display unit back on.)
In a medical context only auxiliary equipment in compliance with
Directive EN 60601-1 may be connected to the interface.
Pressing the PRINT – key whilst the scales are in weighing mode will trigger a
printout of the determined data via the interface, as described in the following.
This is a standard output that cannot be modified.
Example:
40 MCB_MPT-BA-e-1418
12.6.1 Interface parameters for RS232
The interface parameters of the scales have to be set at the connected appliance. It
is not possible to change the parameters inside the scales.
BAUD RATE 9600 bps
PARITY CHECK none
DATA LENGTH 8 Bit
STOP BIT 1 Bit
HANDSHAKE None or Xon/Xoff
DATA CODE ASCII
MCB_MPT-BA-e-1418 41
Remove dirt immediately.
13 Service, maintenance, disposal
13.1 Cleaning
Disconnect the unit from the mains power supply prior to cleaning.
13.2 Cleaning/disinfection
Clean the scale platform (e.g. the detachable plate) only with household detergent or
commercially available disinfectant. Follow the manufacturer’s recommendations.
Do not use abrasive or aggressive cleaning agents like spirit, gasoline or similar as
they may damage the high quality surface.
The prevention of cross-contamination (fungal skin infections,……) requires regular
cleaning of the weighing platform. Recommendation: after a weighing procedure that
could potentially result in contamination (e. g. after weighing that involves direct skin
contact).
Do not spray disinfectants onto appliance.
Make sure that disinfectant does not penetrate the interior of
the appliance.
13.3 Service, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Disconnect the scales before opening.
13.4 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.
We recommend wiping disinfection.
42 MCB_MPT-BA-e-1418
LQ
Battery low
supply, using an adaptor.
ERRL
Underload
ERR
ERRP
Program error
14 Error messages
Display Description
Please replace the batteries or connect scales to the power
Weight on weighing platform is too low.
Please increase weight.
If the error message remains inform manufacturer.
Overload
Weight on weighing platform is too heavy.
Please contact your supplier.
MCB_MPT-BA-e-1418 43
Failure:
Possible cause:
No batteries inserted.
possible)
possible)
Should other error messages occur, switch balance off and then on again. If the
15 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.
The displayed weight
does not glow.
The displayed weight is
permanently changing
The weighing result is
obviously incorrect
The balance is not switched on.
The mains supply connection has been interrupted
(mains cable not plugged in/faulty).
Check fuse of adapter / glowing green LED next to
fuse
Power supply interrupted.
Batteries are inserted incorrectly or empty
Draught/air movement
Table/floor vibrations
The seat surface/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
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
error message remains inform manufacturer.
44 MCB_MPT-BA-e-1418
removal. This makes it impossible to verify scales without damaging the seals.
Display
Operation
a
z000
��
SETUP
��
UNKT
��
CAL
��
K
B
CAL U
��
If not, press again
.
16 Verification
Verified scales bear a verification mark or one or more seals affixed by the Bureau of
Standards or the manufacturer on or inside the housing which will self-destroy on
16.1 Adjustment
Observe stable environmental conditions. A warming up time (see chapter 1) is
required for stabilization.
In calibrated balances the adjustment function is switch locked.
In order to carry out adjustments, the switch must be turned to
adjustment position (centre position). (see chapter 15.2).
ON
Start balance by pressing
Press for approx. 3 sec,
in the display appears „SETUP“, followed by „UNIT“
Press
Press
Press
upper left part of the display.
TARE
repeatedly until “CAL iB“ appears
HOLD
, „CAL U“ appears
TARE
, the appeared triangle must be located in the
OFF
TARE
MCB_MPT-BA-e-1418 45
CAL U
��
CAL O
��
30770
CAL O
��
CAL 5
��
“CAL 5“ appears.
200.0
250.0
numeric value using
.
82077
The adjustment process is started.
250.0
Take away adjustment weight.
HOLD
Press
repeatedly until “CAL 0“ appears.
Press
the display will show a numeric value.
Then press
“CAL 0“ appears.
Press
Press
Enter the required size of the adjustment weight (See
Section 1, "Technical Data"):
For this select the digit to be changed with
Acknowledge by
TARE
,
ENTER
,
HOLD
,
TARE
HOLD
and the
TARE
ENTER
.
46 MCB_MPT-BA-e-1418
Place the adjustment weight carefully in the centre of the
weighing plate; a numerical value will appear in the display.
ENTER
The balance will automatically return to Weighing mode upon
successful completion of the adjustment and will display the
weight of the adjustment weight.
For verified scales, turn off the scales and move the
adjustment switch back to verification position.
Press
16.2 Adjustment controls and seals
After a verification the balance is sealed at the indicated positions.
Verification of the balance is invalid without the "seal".
Position of the official seals:
1. Rear 2. Battery compartment
MCB_MPT-BA-e-1418 47
switch
A.OFF
BURR
1 2 3
Position of the adjustment switch:
Position of the adjustment
State
1. to the left Not documented
2. concentric Adjustment position – adjustment possible
3. to the right Verification position - Adjustment locked
16.3 Checking the balance verification settings
For the adjustment function, the balance must be switched over to service mode. To
achieve the effect, turn the adjustment switch to adjustment position.
In the service mode all parameters of the balance can be modified. The service
parameters may not be modified, as this could damage the balance settings.
16.3.1 Menu overview in service mode (adjustment switch in adjustment position)
This overview is merely for checking the parameters set by the appropriate Bureau of
Standards.
Changes may only be made to the parameters for the automatic shut-off function
“
“ and the audio signal “
“.
48 MCB_MPT-BA-e-1418
HOLD
T
ARE
The balance returns automatically into weighing mode.
16.4 Navigation in the menu
With the balance switched on, keep the button depressed for approx. 3 sec
until "SETUP" is displayed followed by "9rAd".
Press the
TARE
button as often as necessary until the required function is
displayed.
Press the
button to confirm the selected function. The first parameter will be
displayed.
HOLD
Press the
the
button.
button to select the required parameter and confirm by pressing
16.4.1 Exit menu and save
Press the
Acknowledge by
TARE
button repeatedly until "END" appears.
HOLD
.
MCB_MPT-BA-e-1418 49
Selection available via
* default setting
HOLD
and
ARE
T
button
50 MCB_MPT-BA-e-1418
Description:
Weighing unit: kg
partition steps, weighing range (max.) and readout (d)
Multi-range balance/ single-range balance selection
Single-range balance
Multi-range balance
Filter: fast/ normal/ slow
Auto Zero Tracking: 0.25d / 0.5d / 1d / 3d / OFF
Stabilisation range: 0.25d / 0.5d / 1d / 3d / OFF
Zero range: 2% / 100%
Overload range: 9d / 2%
Adjustment
Auto off: 120 sec. / 180 sec. / 240 sec. / 300 sec. / OFF
Audio signal: ON/OFF
Resetting to factory setting (Default setup)
Exit menu
MCB_MPT-BA-e-1418 51
16.5 Verification validity period (current status in G)
Personal weighing scales in hospitals 4 years
Personal weighing scales if placed outside hospitals without time
Baby and mechanical scales Infant scales 4 years
Bed scales 2 years
Wheelchair scales 2 years
The hospitals also include rehabilitation clinics and health centres
(4-year validity of verification).
The hospitals do not include dialysis centres, care homes and consultation rooms
(verification validity without time limit).
(Data on the basis: „Verification office informs, scales in medical applications”)
52 MCB_MPT-BA-e-1418
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