KERN & Sohn GmbH
Ziegelei 1
Phone: +49-[0]7433- 9933-0
D-72336 Balingen
Fax: +49-[0]7433-9933-149
email: info@kern-sohn.com
Internet: www.kern-sohn.com
Operating instructions/ Návod na obsluhu
Medical chair scales/Zdravotnícke kreslové váhy
Medical personal scales/Zdravotnícke osobné váhy
KERN MCB(SK), MPT(SK)
Version 1.7
08/2012
GB
MCB_MPT-BA-e-1217
GB
KERN MCB, MPT
Version 1.7 08/2012
Operating instructions chair scales, personal
scales
Table of Contents
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 .................................................................................................................................... 8
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 Appliance overview ..................................................................................... 11
6 Overview of displays ................................................................................... 13
7 Keyboard overview ...................................................................................... 14
8 Transportation & Storage............................................................................ 15
8.1 Testing upon acceptance ...................................................................................................... 15
8.2 Packaging / return transport ................................................................................................. 15
9 Unpacking, Setup and Commissioning ..................................................... 16
9.1 Place of installation / place of operation.............................................................................. 16
9.2 Unpacking ............................................................................................................................... 16
9.3 Scope of delivery chair scales .............................................................................................. 16
9.4 Installing the chair scales...................................................................................................... 17
9.4.1 Levelliing................................................................................................................................... 18
9.5 Scope of delivery, personal scales....................................................................................... 19
9.6 Installing the personal scales ............................................................................................... 19
9.7 Assemble the wall bracket..................................................................................................... 19
9.8 Attaching an optional stand .................................................................................................. 20
9.9 Battery operation.................................................................................................................... 20
9.10 Operation using a rechargeable battery (optional) ............................................................. 22
9.10.1 Battery operation .................................................................................................................. 23
9.10.2 Rechargeable battery operation (optional) ........................................................................... 25
9.11 Connecting the power supply
............................................................................................... 27
9.12 Initial Commissioning ............................................................................................................ 27
2 MCB_MPT-BA-e-1217
10 Menu overview ............................................................................................. 28
11 Operation...................................................................................................... 29
11.1 Weighing ................................................................................................................................. 29
11.2 Taring....................................................................................................................................... 29
11.3 Hold function (Standstill function) ....................................................................................... 30
11.4 Calculation of the Body Mass Index..................................................................................... 31
11.4.1 Classification of BMI values ................................................................................................. 32
11.5 PRE-TARE function ................................................................................................................ 33
11.5.1 PRE-TARE function with 5 memories .................................................................................. 34
11.6 Print function .......................................................................................................................... 36
11.6.1 Interface parameters for RS232........................................................................................... 37
12 Service, maintenance, disposal.................................................................. 38
12.1 Cleaning................................................................................................................................... 38
12.2 Cleaning/disinfection ............................................................................................................. 38
12.3 Service, maintenance............................................................................................................. 38
12.4 Disposal................................................................................................................................... 38
13 Error messages............................................................................................ 39
14 Instant help................................................................................................... 40
15 Verification ................................ ................................ ................................ ... 41
15.1 Adjustment .............................................................................................................................. 41
15.2 Adjustment controls and seals ............................................................................................. 43
15.3 Checking the balance verification settings ......................................................................... 44
15.3.1 Menu overview in service mode (adjustment switch in adjustment position) ..................... 44
15.4 Navigation in the menu .......................................................................................................... 45
15.4.1 Exit menu and save.............................................................................................................. 45
15.5 Verification validity period (current status in G) ................................................................. 48
MCB_MPT-BA-e-1217 3
1 Technical Data
KERN
MCB 300K100M
MPT 300K100M
Readability (d)
100 g
Weighing range (max)
300 kg
Minimum weight (min)
2 kg
Verification value (e)
100g
Verification class
III
Recommended adjustment weight,
(Class)
300 kg
(M1)
Weighing Units
kg
Stabilization time (typical)
2-3 sec.
Warm-up time
10 min
Electric Supply
Supply voltage: 220 V – 240 V AC 50 Hz
Mains adapter: 15 V / 300 mA (EN60601-1)
Battery operation: 6 x 1,5 V size AA
Service life 50 h
Service life 40 h
Auto Off
After 3 min without load change (adjustable)
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
Dimensions display unit
(B x D x H) mm
210 x 110 x 50
Dimensions seating surface /
Weighing platform
380 x 360
340 x 450 x 90
Weight kg (net)
26
8,5
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 operation
(optional)
Loading time: 23 h;
operating time: 50 h;
7.2 V / 2000 mA
Loading time: 23 h;
operating time: 40 h;
7.2 V / 2000 mA
4 MCB_MPT-BA-e-1217
2 Declaration of conformity
Declaration of conformity: See separate document showing serial number of device
CE marking:
0297
93/42/EEC
year
0103
M
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.
Designation of the serial number of every device, applied at the
device and on the packaging
SN WOC 09000100
Number here as example
Identification of the manufacturing date of the medical product.
Year and month here as example
2009-10
“Please note the accompanying documents“
or “Observe operating instructions”
Identification of manufacturer of medical product including
address
Kern & Sohn GmbH
D–72336 Baligen,Germany
www.kern-sohn.com
MCB_MPT-BA-e-1217 5
15 V DC / 300 mA
“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.
Temperature limit indicating the upper and the lower limit
(storage temperature 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-1217
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.
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
be read after a steady display value has been achieved.
Contra-
No contraindication known.
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.
Scales fitted with a serial interface may only be connected to
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-1217 7
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.
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
8 MCB_MPT-BA-e-1217
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-1217 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.
Versions in other languages are non-binding translations.
The only binding version is the original document in German.
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 MCB_MPT-BA-e-1217
5 Appliance overview
Chair scales MCB
5
4
3
2
1
6
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-1217 11
Personal scales MPT
5
4
3
2
1
2
1. Weighing plate
2. Bubble level
3. Height adjustable rubber feet
4. Gripping handle
5. Display unit
12 MCB_MPT-BA-e-1217
6 Overview of displays
Display
Designation
Description
0
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.
Illuminates in the event of power supply via
Power supply connected
mains adaptor
BMI function active
Calculated BMI value
PRE-Tare function active
Preset tare value is enabled
´
HOLD function active
Hold/Save function active
Net weight display
Net weight will be displayed
Weight value display
Current weight value will be displayed
MCB_MPT-BA-e-1217 13
7 Keyboard overview
Button
Designation
Function
OFF
ON
PRINT
ON/OFF-
Turn on/off
switch
PRINT button
Data transfer via interface
BMI
HOLD
PRE-
TARE
TARE
CLEAR
ENTER
…
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
14 MCB_MPT-BA-e-1217
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 platform, power unit etc.
against shifting and damage.
MCB_MPT-BA-e-1217 15
9 Unpacking, Setup and Commissioning
9.1 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.
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.
9.3 Scope of delivery chair scales
Balance
Operating instructions
Mains adapter
16 MCB_MPT-BA-e-1217
9.4 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-1217 17
9.4.1 Levelliing
The wheel height has to be adjusted for levelling.
Levelling is restricted to specialist staff possessing well acquainted
with the workings of weighing scales.
Place scales on an even surface.
Arrest the brake
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).
Max. 15 mm
2
Gap width must not exceed 15 mm!
18 MCB_MPT-BA-e-1217
9.5 Scope of delivery, personal scales
Balance
Operating instructions
Mains adapter
Wall bracket
4 rubber feet
9.6 Installing the personal scales
Place scales on an even
surface
Level balance with foot
screws until the air
bubble of the water
balance is in the
prescribed circle.
9.7 Assemble the wall bracket
MCB_MPT-BA-e-1217 19
9.8 Attaching an optional stand
Secure circular plate with
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
9.9 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
Insert 6 batteries (1.5 V AA)
20 MCB_MPT-BA-e-1217
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.
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.
MCB_MPT-BA-e-1217 21
9.10 Operation using a rechargeable battery (optional)
In devices with an optional rechargeable battery operation:
Connection CN 3 for
Connection CN 4 for
rechargeable battery
batteries (AA x 6)
22 MCB_MPT-BA-e-1217
9.10.1 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 battery cover on the lower
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-1217 23
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
off, 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.
24 MCB_MPT-BA-e-1217
9.10.2 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-off the battery cover on the lower
side of the balance
Carefully take out the battery holder
(1)
1
Carefully pull-out plug (2) from the
connection CN 4 (3)
MCB_MPT-BA-e-1217 25
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.
26 MCB_MPT-BA-e-1217
9.11 Connecting the power supply
Power is supplied via the external mains adapter which also
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
compliance with Directive EN 60601-1.
9.12 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
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.
The value of gravity acceleration is shown on the type plate.
MCB_MPT-BA-e-1217 27
10 Menu overview
Start balance by pressing
OFF
ON
Press for 3 sec., “SETUP“ will be displayed.
Select parameter by using
TARE
( ) and
HOLD
( ), as
described.
Confirm the selected parameter by pressing
TARE
( ).
0.0 kg
AOFF
Auto off: 120 sec / 180 sec / 240 sec / 300 sec / OFF
bUrr
Audio signal: ON/OFF
End
Exit menu
If End is selected, finish set up by pressing the
HOLD
button.
28 MCB_MPT-BA-e-1217
11 Operation
11.1 Weighing
Start balance by pressing
The balance carry out a segment test, then the program
version is displayed.
OFF
ON
0
The scales are ready for operation as soon as the weight
display for “0.0kg“ has appeared.
The button can be used to set the balance to zero at any
time.
Have person sit in the centre of the scales.
Chair scales
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.
Once the weighing process is completed fold up the foot rests.
Have person stand in the centre of the scales
Personal scales
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.
11.2 Taring
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.
0
Press
TARE
, the zero display appears.
Have person sit or stand in the centre of the scales.
Wait until the standstill display appears, then read the
weighing result.
MCB_MPT-BA-e-1217 29
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
TARE
.
11.3 Hold function (Standstill function)
The balance has an integrated standstill function (mean value calculation). This
allows correct weighing determination of a person although the latter is not keeping
still on the scales.
0
Start balance by pressing
Wait for the rest position display
OFF
ON
.
Have person sit or stand in the centre of the seating surface
or weighing platform.
Press
A triangle
HOLD
starts to flash in the display, during this time the
balance will record several measuring values and will then
display the calculated average value.
By pressing the
HOLD
button several times, the balance
returns to the normal weighing mode.
Press the
HOLD
button once more to repeat this function as
often as required.
There is no average value calculation in the event of too much
movement.
30 MCB_MPT-BA-e-1217
11.4 Calculation of the Body Mass Index
0
Start balance by pressing
Wait for the rest position display
OFF
ON
.
0
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.
BMI
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
ENTER
key
The BMI of the person will be shown.
0
Press again
BMI
and the scales will return to weighing
mode.
MCB_MPT-BA-e-1217 31
11.4.1 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
overweight
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
32 MCB_MPT-BA-e-1217
11.5 PRE-TARE function
If the tare weight is known (rubber mat, clothing…..) . you may inter the value
manually.
0
Start balance by pressing
Wait for the rest position display
OFF
ON
.
Press
PRE-
TARE
briefly.
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.
The most recently applied value or “000.0“ will appear.
Go to the numeric keypad and enter a new value.
Confirm value with
ENTER
The entered value appears on the display with a minus in front.
Have the person sit or stand on the scales
The weight value reduced by the previously entered tare
value will be shown.
PRE-
TARE
To return to normal weighing mode, again press the
button.
MCB_MPT-BA-e-1217 33
11.5.1 PRE-TARE function with 5 memories
This gives the option of storing 5 different tare values that can be retrieved when
required.
Saving PPE-TARE
values
0
Weighing platform is unloaded and indicates “0.0 kg“.
0
Place the weight to be saved on the weighing platform and
wait until the weight display is steady.
Keep pressing the button until “ni“ (M) appears.
Briefly press the numeric key ( 1..5 ) that you wish to use
for saving the value. The weight value displayed
beforehand will be flashing for approx. 3 seconds.
0
0
Once flashing has finished, press the same numeric key
as above.
This will save the weighing value to the memory (audio
sound).
0
The weighing value will be indicated.
On removal of the weight, “0.0kg“ will appear.
Press
CLEAR
to return to weighing mode, without saving.
34 MCB_MPT-BA-e-1217
Retrieving PPE-
TARE values from
the memory
0
Weighing platform is unloaded and indicates “0.0 kg“.
0
Press and hold the button until “ni“ appears and starts
PRE-
TARE
flashing on the display.
Briefly press the numeric key ( 1..5 ) under which number
the Pre-Tare value was saved.
The saved weight value will be flashing.
In addition there will be a flashing triangle under “PRE-
TARE“ and “NET“.
Import value with
ENTER
.
Value will be shown with a negative sign.
Have the person sit or stand on the scales.
Only the person’s weight will be indicated.
0
To return to weighing mode, unload the scales and press
PRETARE.
MCB_MPT-BA-e-1217 35
Printout from PRE-
TARE memory
Press
PRE-
TARE
and hold until “ni“ (M) appears on the display.
To issue the values saved to the 5 memories, briefly press
the
PRINT
button.
Example:
M1
0.0 kg
M2
7.0 kg
M3
10.0 kg
M4
30.0 kg
M5
50.0 kg
11.6 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:
GROSS WEIGHT
88.8 kg
TARE WEIGHT
2.0 kg
NET WEIGHT
86.8 kg
PATIENT HEIGHT
188.5 cm
PATIENT B.M.I.
24.4
36 MCB_MPT-BA-e-1217
11.6.1 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-1217 37
12 Service, maintenance, disposal
12.1 Cleaning
Disconnect the unit from the mains power supply prior to cleaning.
12.2 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.
Remove dirt immediately.
12.3 Service, maintenance
The appliance may only be opened by trained service technicians who are
authorized by KERN.
Disconnect the scales before opening.
12.4 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.
38 MCB_MPT-BA-e-1217
13 Error messages
Display
Description
Battery low
Please replace the batteries or connect scales to the power
supply, using an adaptor.
Underload
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.
Program error
Please contact your supplier.
MCB_MPT-BA-e-1217 39
14 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.
Failure:
The displayed weight
does not glow.
The displayed weight is
permanently changing
The weighing result is
obviously incorrect
Possible cause:
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
No batteries inserted.
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
possible)
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
possible)
Should other error messages occur, switch balance off and then on again. If the
error message remains inform manufacturer.
40 MCB_MPT-BA-e-1217
15 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
removal. This makes it impossible to verify scales without damaging the seals.
15.1 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).
Display
Operation
OFF
ON
Start balance by pressing
Press for approx. 3 sec,
in the display appears „SETUP“, followed by „UNIT“
Press
TARE
repeatedly until “CAL iB“ appears
Press
HOLD
, „CAL U“ appears
Press
TARE
, the appeared triangle must be located in the
upper left part of the display.
If not, press again
TARE
.
MCB_MPT-BA-e-1217 41
Press
HOLD
repeatedly until “CAL 0“ appears.
Press
the display will show a numeric value.
Then press
“CAL 0“ appears.
Press
“CAL 5“ appears.
Press
Enter the required size of the adjustment weight (See
Section 1, "Technical Data"):
TARE
For this select the digit to be changed with
HOLD
and the
numeric value using
TARE
.
Acknowledge by
TARE
,
ENTER
,
HOLD
,
ENTER
.
Place the adjustment weight carefully in the centre of the
weighing plate; a numerical value will appear in the display.
ENTER
Press
The adjustment process is started.
The balance will automatically return to Weighing mode upon
successful completion of the adjustment and will display the
weight of the adjustment weight.
Take away adjustment weight.
For verified scales, turn off the scales and move the
adjustment switch back to verification position.
42 MCB_MPT-BA-e-1217
15.2 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-1217 43
Position of the adjustment switch:
Position of the adjustment
switch
State
1. to the left
Not documented
2. concentric
Adjustment position – adjustment possible
3. to the right
Verification position - Adjustment locked
1 2 3
15.3 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.
15.3.1 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 “ “.
MCB_MPT-BA-e-1217 44
15.4 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 button as often as necessary until the required function is
displayed.
Press the
TARE
HOLD
HOLD
button to confirm the selected function. The first parameter will be
displayed.
Press the button to select the required parameter and confirm by pressing
the
TARE
button.
15.4.1 Exit menu and save
Press the button repeatedly until "END" appears.
.
The balance returns automatically into weighing mode.
TARE
Acknowledge by
HOLD
MCB_MPT-BA-e-1217 45
Selection available via
HOLD
and
TARE
button
* default setting
46 MCB_MPT-BA-e-1217
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-1217 47
15.5 Verification validity period (current status in G)
Personal scales in hospitals
4 years
Personal scales if not used in hospitals
unlimited
Baby weighing scales and mechanical birth weight
4 years
scales
Bed scales
2 years
Wheelchair scales
2 years
Rehab clinics and local health authorities are treated as
hospitals (4 years verification validity).
Not treated as hospitals (calibration not limited) are
dialysis stations, nursing homes and doctor’s surgeries.
(Data source: ”Bureau of Standards News, Weighing
Instruments in Medicine“)
48 MCB_MPT-BA-e-1217
Loading...