KERN MCC-M, MCC 250K100M Operating Instructions Manual

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KERN & Sohn GmbH

Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com

Tel: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com

Operating instructions Medical Chair scale

KERN MCC-M

Version 1.1

10/2012 GB

MCC-M-BA-e-1211

2 MCC-M-BA-e-1211

KERN MCC-M

Version 1.1 10/2012

Operating manual chair

Contents

1 Technical data ................................................................................................ 4

2 Declaration of conformity ............................................................................. 5

2.1 Explanation of the graphic symbols ............................................................................................ 5

3 Appliance overview ....................................................................................... 7

3.1 Overview of display .................................................................................................................... 9

3.2 Keyboard overview ................................................................................................................... 10

4 Basic Information (General) ........................................................................ 11

4.1 Specific function ....................................................................................................................... 11

4.2 Proper use ................................................................................................................................ 11

4.3 Improper Use ............................................................................................................................ 12

4.4 Warranty ................................................................................................................................... 12

4.5 Monitoring of Test Resources .................................................................................................. 12

5 Basic Safety Precautions ............................................................................ 13

5.1 Pay attention to the instructions in the Operation Manual........................................................ 13

5.2 Personnel training ..................................................................................................................... 13

5.3 Preventing contamination ......................................................................................................... 13

6 Electromagnetic compatibility (EMC) ......................................................... 14

6.1 General hints ............................................................................................................................ 14

6.2 Electromagnetic interferences .................................................................................................. 15

6.3 Electromagnetic noise immunity ............................................................................................... 16

6.3.1 Crucial features of performance ............................................................................................... 18

6.4 Minimum distances ................................................................................................................... 18

7 Transport and storage ................................ ................................................. 19

7.1 Testing upon acceptance ......................................................................................................... 19

7.2 Packaging / return transport ..................................................................................................... 19

MCC-M-BA-e-1211 3

8 Unpacking, Setup and Commissioning ..................................................... 20

8.1 Place of installation / place of operation ................................................................................... 20

8.2 Unpacking ................................................................................................................................. 20

8.3 Scope of delivery ...................................................................................................................... 20

8.4 Installing the chair scales ......................................................................................................... 21

8.4.1 Levelling ................................................................................................................................... 23

8.5 Mains connection ...................................................................................................................... 24

8.6 Rechargeable battery operation ............................................................................................... 25

8.7 Initial Commissioning ................................................................................................................ 25

9 Operation ...................................................................................................... 26

9.1 Weighing ................................................................................................................................... 26

9.2 Taring........................................................................................................................................ 26

9.3 HOLD function .......................................................................................................................... 27

9.4 See second decimal point (not verified value) ......................................................................... 27

9.6 Calculation of the Body Mass Index ......................................................................................... 28

9.6.1 Classification of BMI values ..................................................................................................... 28

9.7 Automatic switch-off function „AUTO OFF“ .............................................................................. 29

9.8 Display background illumination ............................................................................................... 30

10 Menu ............................................................................................................. 31

10.1 Navigation in the menu ............................................................................................................. 31

10.2 Menu overview MPC models .................................................................................................... 32

11 Error messages ............................................................................................ 33

12 Service, maintenance, disposal .................................................................. 34

12.1 Cleaning ................................................................................................................................... 34

12.2 Cleaning / disinfecting .............................................................................................................. 34

12.3 Service, maintenance ............................................................................................................... 34

12.4 Disposal .................................................................................................................................... 34

13 Instant help ................................................................................................... 35

14 Verification ................................................................................................... 36

14.1 Verification validity period (current status in G) ........................................................................ 37

15 Adjustment ................................................................................................... 38

4 MCC-M-BA-e-1211

1 Technical data

KERN

MCC 250K100M

Readability (d)

0.1 kg

Weighing range (max)

250 kg

Minimum weight (min)

2 kg

Verification value (e)

100 g

Verification class

III

Reproducibility

0.1 kg

Linearity

±0.1 kg

Recommended adjustment weight (Class)

200 kg

(M1)

Weighing Units

Warm-up time

10 min

Electric Supply

Input voltage: 220 V - 240 V AC 50 Hz

Operating temperature

0°C … + 40°C

Humidity of air

max. 80 % (not condensing)

Dimensions (W x D x H) mm

625 x 990 x 935

Dimensions Weighing surface

435 x 380 x 410

Weight kg (net)

Rechargeable battery operation

Series

Medical product in accordance with 93/42/EEC

Category I with measuring function

MCC-M-BA-e-1211 5

2 Declaration of conformity

Declaration of conformity: see separate document showing serial number of device CE marking:

0297

93/42/EEC

2009 / 23 / EG Non-automatic Weighing Instruments Directive

2.1 Explanation of the graphic symbols

This EC verification mark indicates that these scales are in conformity with EC Directive 2009 / 23 / EC for NonAutomatic Weighing Instruments. Weighing instruments

bearing this mark are approved for medical purposes within the European Union.

WF 1334331

Designation of the serial number of every device, applied at the device and on the packaging

Number here as example

2012-10

Identification of the manufacturing date of the medical product. Year and month here as example

“Please note the accompanying documents“ or “Please note operating instructions”

“Please note operating instructions”

year 0103

6 MCC-M-BA-e-1211

Kern & Sohn GmbH D–72336 Baligen,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.

Temperature limit indicating the upper and the lower limit (storage temperature on packaging) (Temperature serving as an example)

12 V DC / 500 mA

Display of supply voltage for scales with polarity display.

MCC-M-BA-e-1211 7

3 Appliance overview

1. Seat pan

2. Bubble level

3. Display Unit

4. Manipulations

5. Parking brake

6. Adjustment switch

7. Terminal power supply unit

8. Connection cable "Display - Chair"

9. Battery compartment

8 MCC-M-BA-e-1211

Details:

Parking brake

Foot rests

Accessory bag

Folding arm rests

MCC-M-BA-e-1211 9

3.1 Overview of display

Display

Description

GROSS

Gross weight display

Lights up during indication of the gross weight of the baby (after drinking)

NET

Net weight display

Lights up during indication of the net weight of the baby (before drinking)

Illuminated after weighing scale was tared

ZERO

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.

STABLE

Stability display

Scales are in a steady state

BMI

Body Mass Index

Is actively displayed during active BMI function

HOLD

HOLD function

Is displayed with active hold function

Rechargeable battery symbol

Lights when the voltage drops below the prescribed minimum.

Lights when the rechargeable battery capacity is almost exhausted.

Lights when the rechargeable battery is fully charged.

10 MCC-M-BA-e-1211

3.2 Keyboard overview

Key

Description

Function

ON/OFF-switch

Turn on/off

HOLD button

Hold function

BMI key

Calculation of the Body Mass Index

In menu:

Confirm selection

For numeric entry:

Confirm numerical value

Function key

In menu:

Call up menu How to select menu items

For numeric entry:

Increase numerical value

Zero setting key

Weighing scale will be reset to „0.0“

For numeric entry:

Change decimal place

TARE key

Tare balance

MCC-M-BA-e-1211 11

4 Basic Information (General)

Weighing instruments have to be verified for the purposes stated below in accordance with Directive 2009/23/EC. 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.”

4.1 Specific function

Indication

Determining the body weight in the medical practice area. Use as „non-standalone weighing scale“, that is, a person

sits carefully onto the seating surface’s centre. Once a

steady display value is shown, you can read the weight value.

Contraindication

No contraindication known

4.2 Proper use

These scales are used to determine weight of people sitting at rest in medical treatment rooms. The scales are suitable for recognising, preventing and controlling illnesses. The person should be weighed carefully and have contact with the center of the seat, sit and stay calm.

As soon as a stable weighing value is reached the weighing value can be read. The scales are designed for long-term usage.

The instruments shall only be used by people who can sit still.

The balances should be checked for correct condition prior to each utilisation by a person familiar with proper operation of the balance.

The chair scales may not be used for the transport of people! As long as the patient is sitting 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!

12 MCC-M-BA-e-1211

4.3 Improper Use

Do not use these scales for dynamic weighing processes. No permanent load on the seat area. This may damage the measuring system. Impacts and overloading exceeding the stated maximum load (max) of the seating surface, 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.

4.4 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

4.5 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.

MCC-M-BA-e-1211 13

5 Basic Safety Precautions

5.1 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.

 All language versions contain a non-binding

translation. The original German is binding.

5.2 Personnel training

The medical staff must apply and follow the operating instructions for proper use and care of the product.

5.3 Preventing contamination

The prevention of cross-contamination (fungal skin infections,……) requires regular cleaning of the seating surface. Recommendation: after a weighing procedure that could potentially result in contamination (e. g. after weighing that involves direct skin contact).

14 MCC-M-BA-e-1211

6 Electromagnetic compatibility (EMC)

6.1 General hints

The installation and use of this electrical medical device requires special precautionary measures as outlined in the EMC information below.

This device complies with the limits set for medical electrical devices of group 1, class B (as per EN 60601-1-2).

Electromagnetic compatibility (EMC) describes a device’s ability to perform reliably

within an electromagnetic environment without causing inadmissible electromagnetic interference at the same time. Amongst other things, such disturbances may be emitted by connecting cables or the air.

Inadmissible disturbances from the environment may result in incorrect displays, inaccurate measured values or incorrect behaviour of the medical device. By the same token the medical device may in some cases cause such disturbances in other devices. To eliminate problems of that kind, we recommend you to take one or several of the measures listed below:

Change the alignment or distance of the device to the source of EMI. Install or use the chair scale MCC-M at a different location. Connect the chair scale MCC-M to a different power source. For further questions please contact our customer services.

Disturbances may be caused by improper modification or add-ons to the device or not recommended accessories (such as power units or connecting cables). The manufacturer will not be responsible for these. Modifications may also result in a loss of authorisation relating to the use of the device.

Devices emitting high frequency signals (mobile telephones, radio transmitters, radio receivers) may cause interference in the medical device. For that reason do not use them near the medical device. Chapter 6.4 contains details about recommended minimum distances.

MCC-M-BA-e-1211 15

6.2 Electromagnetic interferences

Guidelines and manufacturer’s declaration – electromagnetic interferences

The chair scale MCC-M is designed for use in an electromagnetic environment that meets the requirements stated below. The customer or user of the medical electrical device must ensure that operation takes place in such an environment.

Emitted interference measurements

Conformity

Electromagnetic environment guideline

HF emissions as per CISPR 11 / EN 55011

Group 1

The chair scale MCC-M uses HF energy merely for its internal working. Its HF emission therefore is very low and it is highly unlike to interfere with adjacent electronic devices.

HF emissions as per CISPR 11 / EN 55011

Class B

The chair scale MCC-M is designed for use in all equipment including those in living areas and those connected directly to the public power grid that also supplies buildings used for living purposes.

Emission of harmonics as per IEC 61000-3-2

Class A

Emission of voltage fluctuations / flicker

as per IEC 61000-3-3

Conforms with

Do not put the chair scale MCC-M directly next to other devices and do not stack it with other devices. If this type of operation is necessary, observe the chair scale MCC-M to ensure normal operation in such an arrangement.

16 MCC-M-BA-e-1211

6.3 Electromagnetic noise immunity

Guidelines and manufacturer’s declaration - electromagnetic noise immunity

Noise immunity tests

IEC 60601 test level

Conformity

Electromagnetic environment - guideline

Discharge static electricity (DSE)

as per IEC 61000-4-2

± 6 kV contact discharge ± 8 kV air discharge

± 6 kV ± 8 kV

Floors should be made of wood or concrete or tiled with ceramic tiles. If floors are covered with synthetic material, relative air humidity must be at least 30%.

Fast transient electrical disturbances / bursts

as per IEC 61000-4-4

± 2 kV for power lines + 1 kV for input and

output lines

± 2 kV + 1 kV

The quality of the supply voltage should match that of the typical business or hospital environment.

Impulse voltages / surges

as per IEC 61000-4-5

± 1 kV voltage Live wire - live wire

± 2 kV voltage Live wire - earth

± 1 kV

Inapplicable

The quality of the supply voltage should match that of the typical business or hospital environment.

Voltage dips, short-term disruptions and fluctuations in supply voltage

as per IEC 61000-4-11

< 5 % (> 95 % dip of ) for ½ period

40 % (> 60 % dip of ) for 5 periods

70 % (> 30 % dip of ) for 25 periods

< 5 % (> 95 % dip of ) for 5 s

Compliance with requirements under all postulated conditions

Controlled switch off Return to undisturbed situation after user intervention.

The quality of the supply voltage should match that of the typical business or hospital environment. Where the user of the chair scale MCC-M demands continuous operation even during disruptions to the power supply, we recommend powering the chair scale MCCM by no-break power supply or battery.

Magnetic field for supply frequency (50/60 Hz)

as per IEC 61000-4-8

3 A/m

3 A/m 50/60 Hz

Magnetic fields for the supply frequency should match the typical values found in the particular business or hospital environment.

NOTE equals AC line voltage prior to application of test level.

MCC-M-BA-e-1211 17

Guidelines and manufacturer’s declaration - electromagnetic noise immunity

Noise immunity tests

IEC 60601 test level

Conformity

Electromagnetic environment guideline

Conducted HF disturbance variables

as per IEC 61000-4-6

3 150 kHz to 80 MHz

3 V

Do not use portable or mobile radio sets nearer to the chair scale MCC-M or its wires than the distance recommended as safety distance which is calculated according to the equation relevant for its transmission frequency.

Recommended safety distance:

for 80 MHz to 800 MHz

for 800 MHz to 2.5 GHz Use P as rated capacity of radio

transmitter in Watt (W) as per details given by the radio transmitter manufacturer and d as recommended safety distance in metres (m).

The field intensity of stationary radio transmitters should for all frequencies be lower according to an in situ a examination than the conformity level.b

Interference may occur near devices bearing the symbol below.

Emitted HF disturbance variables

as per IEC 61000-4-3

3 80 MHz to 2.5 GHz

3 V/m

NOTE 1 Higher frequency range applies to 80 MHz and 800 MHz. NOTE 2 These guidelines may not be applicable in all cases. The spread of electromagnetic variables is influenced by absorption and reflections in buildings, objects and humans.

The field intensity of stationary radio transmitters such as base stations of wireless telephones and

mobile radio sets, amateur radio stations, AM and FM radio and television stations cannot be reliably predicted in advance. To determine the electromagnetic environment in respect of stationary transmitters, you should consider a study of electromagnetic phenomena at the location. If the measured field intensity at the location where the chair scale MCC-M is to be used exceeds the conformity level above, you should observe the chair scale MCC-M in order to ensure normal operation. If you observe unusual features of performance you may have to take additional measures such as a change in alignment or a different location for the chair scale MCC-M.

For a frequency range of 150 kHz to 80 MHz field intensity should be less than 3 V/m.

18 MCC-M-BA-e-1211

6.3.1 Crucial features of performance

Note: The chair scale MCC-M does not have any crucial features of performance

as per IEC 60601-1. The system may be subject to interference by other devices even if these devices conform to current emission requirements as per CISPR.

6.4 Minimum distances

Recommended safety distances between portable and mobile HF telecommunication devices and the medical device

The chair scale MCC-M is designed for use in an electromagnetic environment in which HF disturbance variables are controlled. The customer or user of the medical electrical device can help avoiding electromagnetic disturbances by keeping the minimum distance between portable and mobile HF telecommunication devices (transmitters) and the chair scale MCC-M – depending on the output performance of the communication device, as stated below.

Rated capacity of

transmitter

The safety distance depends on the transmission frequency

150 kHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

0.01

0.12

0.23

0.1

0.38

0.73

1.20

2.30

3.80

7.30

100

12.00

23.00

For transmitters with a maximum rated capacity not stated in the table above you can calculate the recommended safety distance in metres (m) yourself by using the equation belonging to each column, whereby P equals the maximum rated capacity of the transmitter in Watt (W) as per details provided by the transmitter manufacturer.

MCC-M-BA-e-1211 19

7 Transport and storage

7.1 Testing upon acceptance

When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage.

7.2 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 against shifting and damage.

20 MCC-M-BA-e-1211

8 Unpacking, Setup and Commissioning

8.1 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, vapours 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.

8.2 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.

8.3 Scope of delivery

Balance Operating instructions Mains adapter Accessory Bag

MCC-M-BA-e-1211 21

8.4 Installing the chair scales

 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.

22 MCC-M-BA-e-1211

Make sure that all transport locking devices are removed

To release the transport lock transport screw counter-clockwise. For transportation carefully screw-in transport screw clockwise till to the stopper

and then fix it using locknut.

MCC-M-BA-e-1211 23

8.4.1 Levelling

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.  Lock brakes

 Turn the wheel (1) until the air bubble of the water balance is in the

black circle

 Turn the counternuts (2) right to the top.

24 MCC-M-BA-e-1211

Gap width must not exceed 15 mm!

8.5 Mains connection

Terminal power supply unit

Power is supplied via the external mains adapter. The printed voltage must correspond to the local voltage.

Only approved genuine KERN power supply units may be used in compliance with Directive EN 60601-1. The small sticker attached to the side of the display unit indicates the power port:

The LED remains illuminated as long as the weighing scale remains connected to the mains. The LED display provides information about the battery's charging status.

Green: battery is fully charged Blue: battery is charging

Max. 15 mm

MCC-M-BA-e-1211 25

8.6 Rechargeable battery operation

Open the battery compartment cover (1) at the base of the display unit and insert the rechargeable battery pack. Charge the battery for at least 12 hours before initial use.

The appearance of the symbol in the weight display indicates that the battery packs is almost exhausted. The weighing scale will remain ready for operation for a few more minutes before switching off in order to save battery. Charge the battery pack.

Voltage has dropped below prescribed minimum.

Rechargeable battery very low.

Rechargeable battery completely reloaded

If the balance is not used for a longer time, take out the battery pack and store it separately. Leaking liquid could damage the balance.

8.7 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. 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.

26 MCC-M-BA-e-1211

9 Operation

9.1 Weighing

 Start balance by pressing

The balance will carry out a segment test. The scales are ready for operation as soon as the weight display for “0.0kg“ has appeared.

However, you can reset the weighing scale to zero by pressing

the key.

 Seat person in the centre of the seat pan.  Fold down the foot rests and place the patient’s feet on the

respective foot rest.

 Wait for stability display "STABLE", then read the weighing

result.

 Once the weighing process is completed fold up the foot rests.

If a person is heavier than the maximum weighing range, “OL”

(overload) will appear on the display screen.

9.2 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 weighings.

(example)

 Put object (such as towel or padding) on the seating pan.

 Press , the zero display appears.  „NET” is shown at the bottom on the left.

(example)

 Seat person in the centre of the seat pan.

Wait until the standstill display „STABLE“ appears, then read

the weighing result.

MCC-M-BA-e-1211 27

When the balance is unloaded the saved taring value is

displayed with negative sign.

To delete the stored tare value, release scales and press .

9.3 HOLD 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 seat surface.

 Start balance by pressing .

Wait for stability display „STABLE to appear.

(Example)

 Press , in the display „---------“ will appear and the

„HOLD“ symbol appears.

 Seat person in the centre of the seat pan.  After a short time the stability display „STABLE“ appears and

the weighing value of the person is displayed and „frozen“. After unloading the balance, the weighing value remains

displayed for approx. 10 seconds, than the balance changes automatically into the weighing mode.

The symbol „HOLD“ disappears.

There is no average value calculation in the event of too much movement.

9.4 See second decimal point (not verified value)

Press and hold for about 2 s whilst weighed result is being shown. The second decimal place will be shown for approx. 5 s.

28 MCC-M-BA-e-1211

9.6 Calculation of the Body Mass Index

You need to know a person’s body height before you can calculate the BMI for that

person. This should be known.

 Start balance by pressing  Allow the person to step onto the centre of the weighing

platform

 Wait for stability display „STABLE to appear.

 Press . The most recently entered body height will be

shown with the enable digit flashing.

 To enter body height, press the and key.

 Confirm the value entered by .

The weighing scale is now in BMI mode and the BMI symbol will be appear and the kg display disappear. The calculated BMI value will be displayed.

 Return to weighing mode using

The BMI symbol will disappear and the kg display will reappear.

Reliable calculation of BMI is restricted to a body height of 100 cm to 200

cm and a weight of >10 kg. If weighing has to take place under unsteady conditions, you can be

stabilise the display by applying the Hold function.

9.6.1 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 up very high

MCC-M-BA-e-1211 29

9.7 Automatic switch-off function „AUTO OFF“

The weighing scale will switch off automatically after the allotted time as long as neither the display unit nor the weighing surface is operated.



(example)

 In weighing mode, press and the first function [F1 oFF]

will be displayed.

 Press , the last saved time is displayed, for example,

[oFF 15]

 Press repeatedly until the desired time is displayed, e.g.

[oFF 30]

[oFF 0]

AUTO OFF - function disabled

[oFF 3]

Weighing system will be turned off after 3 min.

[oFF 5]

Weighing system will be turned off after 5 min.

[oFF 15]

Weighing system will be turned off after 15 min.

[oFF 30]

Weighing system will be turned off after 30 min.

 Save selected time with , [F1 oFF] is displayed  Return to weighing mode using

30 MCC-M-BA-e-1211

9.8 Display background illumination



(example)

 In weighing mode, press and the first function [F1 oFF]

will be displayed.

 Press repeatedly until [F3 bk] is shown.

 Press , the last saved setting is displayed, for example

[bL on]

 To select the desired setting, press

 With save select setting , [F3 bk] is displayed.

 Return to weighing mode using

bL on

Continuous background lighting

bL off

Background illumination off

bL AU

Automatic background illumination on when weighing surface is loaded or key pressed.

MCC-M-BA-e-1211 31

10 Menu

Access to service menu „tCH“is locked in verified balances. To disable the access lock, destroy the seal and actuate the

adjustment switch. For position of adjustment switch, see chap. 15.

Attention:

After destruction of the seal the weighing system must be re-verified by an authorised agency and a new verification wire/seal mark fitted before it can be reused for applications subject to verification.

10.1 Navigation in the menu

Call up menu

 In weighing mode, press and the first function

[F1 oFF] will be displayed.

Select function

 With help of , the individual functions can be

selected one after the other.

Change settings

 Confirm selected function by . The current setting

will be displayed.

 Select desired setting by and confirm with ,

the balance returns to the menu.

Exit menu/ Return to weighing

mode

 Press and the scales will return to weighing mode.

32 MCC-M-BA-e-1211

10.2 Menu overview MPC models

Function

Settings

Description

F1 oFF Automatic cutout Auto Off

oFF 0*

Automatic shutdown off

oFF 3

Automatic shutdown after 3 sec

oFF 5

Automatic shutdown after 5 sec

oFF 15

Automatic shutdown after 15 sec

oFF 30

Automatic shutdown after 30 sec

F2 bk Background illumination of display

bl on

Back lighting for display on

bl oFF

Display background illumination off

bl AU*

Backlighting for display will come on automatically as soon as the weighing scale is operated.

F3 Str Subsequent tare value, locked in devices with type approval certificate.

Str on

Following tare ON

Str oFF*

Following tare OFF

tCH Service menu

It display shows "Pin" adjust switch. Then press subsequently , ,

P1 Spd Display speed

15*

Not documented

7.5 P2 CAL

Adjustment, see chap. 16.1

P3 Pro

tri*

Not documented

CoUnt

Not documented

rESEt

Reset weighing scale to factory setting

SEtGrA

Not documented

* default setting

MCC-M-BA-e-1211 33

11 Error messages

Display

Description

Zero range exceeded

(on start-up or when pressing the key)

Load on weighing pan Excess load, during zero setting of weighing scale Incorrect adjusting process Fault on load cell

Value outside the A/D converter range

Damaged weighing cell Damaged electronics

Should other error messages occur, switch balance off and then on again. If the error message remains inform manufacturer.

34 MCC-M-BA-e-1211

12 Service, maintenance, disposal

12.1 Cleaning

Before any maintenance, cleaning and repair work disconnect the appliance from the operating voltage.

12.2 Cleaning / disinfecting

Clean weighing platform (such as seat) as well as casing with household detergents or commercially available disinfectants. Please follow manufacturer’s instructions.

Do not use abrasive or aggressive cleaners such as spirits or alcohol or similar as they might 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.

MCC-M-BA-e-1211 35

13 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:

Possible causes:

The displayed weight does not glow.

The balance is not switched on. The mains supply connection has been interrupted

(mains cable not plugged in/faulty). Power supply interrupted. Rechargeable battery inserted incorrectly or empty. No rechargeable battery inserted.

The displayed weight is permanently changing

Draught/air movement Table/floor vibrations The seating surface 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 weighing result is obviously incorrect

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.

36 MCC-M-BA-e-1211

14 Verification

General introduction:

According to EU directive 2009/23/EC balances must be officially verified if they are used as follows (legally controlled area):

a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the

medical and pharmaceutical laboratory. c) For official purposes d) For manufacturing final packages

In cases of doubt, please contact your local trade in standard. Verification notes:

An EU type approval exists for balances described in their technical data as verifiable. If a balance is used where obligation to verify exists as described above, it must be verified and re-verified at regular intervals. Re-verification of a balance is carried out according to the respective national regulations. For verification validity period, s. chap. 15.1. The legal regulation of the country where the balance is used must be observed!

Verification of the balance is invalid without the seal.

The seal marks attached on balances with type approval point out that the balance may only be opened and serviced by trained and authorised specialist staff. If the seal mark is destroyed, verification loses its validity. Please observe all national laws and legal regulations. In Germany a re-verification will be necessary.

Balances with obligation to verify must be taken out of operation if:

The weighing result of the balance is outside the error limit. Therefore,

in regular intervals load balance with known test weight (ca. 1/3 of the max. load) and compare with displayed value.

The reverification deadline has been exceeded.

MCC-M-BA-e-1211 37

Position adjustment switch and seals:

1. Self-destroying seal mark

2. Cover

3. Adjustment switch

14.1 Verification validity period (current status in G)

Personal scales (including chair and wheelchair scales) in hospitals

4 year

Personal scales, when not located in hospitals (for example, doctor's offices and nursing homes)

unlimited

Baby weighing scales and mechanical birth weight scales

4 year

Bed scales

2 year

Scales in dialysis stations

unlimited

Rehab clinics and health authorities are treated as hospitals. (4 years of verification validity)

Not treated as hospitals (verification validity not limited) are dialysis stations, nursing homes and doctor’s surgeries.

(Details derived from: „Information by the verification authority, weighing scales

applied in medical use“)

1 1 2

38 MCC-M-BA-e-1211

15 Adjustment

As the acceleration value due to gravity is not the same at every location on earth, each display unit with connected weighing plate must be coordinated - in compliance with the underlying physical weighing principle - to the existing acceleration due to gravity at its place of location (only if the weighing system has not already been adjusted to the location in the factory). This adjustment process must be carried out for the first commissioning, after each change of location as well as in case of fluctuating environment temperature. To receive accurate measuring values it is also recommended to adjust the display unit periodically in weighing operation.

Prepare the required adjustment weight. The adjustment weight to be

applied depends on the capacity of a weighing scale, see chap. 1. Carry out adjustment as closely as possible to admissible maximum load of weighing scale. Information about test weights you will find in the internet under http://www.kern-sohn.com

Observe stable environmental conditions. For warm-up time required for

stabilisation see chpt 1.

Access to service menu „tCH“is locked in verified balances. To disable the access lock, destroy the seal and actuate the adjustment

switch. Position of the adjustment switch see chap. 15.

Attention:

MCC-M-BA-e-1211 39

Procedure:



 In weighing mode, press repeatedly until [tCH] appears.  Press , [Pin] is displayed

Press , and subsequently, [P1 SPd] will appear



 Press , „P2 CAL“ will be displayed

 Operate adjustment switch; for position see chap.15

 Press , [dESC] is displayed

 Press repeatedly until [CAL] will be displayed.  Confirm with , [UnloAd] appears

 Ensure that there are no objects on the weighing pan.  Wait for stability display "STABLE", then confirm with

(example)

 The size of the currently set adjustment weight will be

displayed. To change, select the digit to be altered by , and the numerical value by .

 Confirm with , [LoAd] appears.

40 MCC-M-BA-e-1211



 Carefully place adjusting weight in the centre of the seating

pan

 Wait until stability display „STABLE“ appears  Confirm with [PASS] is displayed.

After the adjustment the balance will carry out a self-test. Remove adjusting weight during selftest, balance will return into weighing mode automatically. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure.

An adjusting error or incorrect adjustment weight will generate an error message („Err 4“), repeat the adjustment process.

KERN MCC-M, MCC 250K100M Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual