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.
GB KERN MCC-M Version 1.2 10/2013 Operating manual chair Contents 1 Technical data ................................................................................................ 4 2 Declaration of conformity ............................................................................. 5 2.1 Explanation of the graphic symbols ............................................................................................ 5 3 Appliance overview ..........................................................
8 Unpacking, Setup and Commissioning ..................................................... 20 8.1 8.2 8.3 8.4 8.4.1 8.5 8.6 8.7 Place of installation / place of operation ................................................................................... 20 Unpacking ................................................................................................................................. 20 Scope of delivery ..........................................................................................
1 Technical data KERN MCC 250K100M Readability (d) 0.1 kg Weighing range (max) 250 kg Minimum weight (min) 2 kg Verification value (e) Verification class 100 g III Reproducibility 0.1 kg Linearity ±0.1 kg Recommended adjustment weight (Class) 200 kg (M1) Weighing Units kg Warm-up time 10 min Electric Supply Input voltage: 220 V - 240 V AC 50 Hz Operating temperature Humidity of air Dimensions (W x D x H) mm Dimensions Weighing surface Weight kg (net) 0°C … + 40°C max.
2 Declaration of conformity Declaration of conformity: see separate document showing serial number of device CE marking: 93/42/EEC 0297 year 0103 2.1 M 2009 / 23 / EG Non-automatic Weighing Instruments Directive 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.
Identification of manufacturer of medical product including address Kern & Sohn GmbH D–72336 Baligen,Germany www.kern-sohn.com “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.
3 Appliance overview 1. 2. 3. 4. 5. 6. 7. 8. 9.
Details: Accessory bag Parking brake Foot rests Folding arm rests 8 MCC-M-BA-e-1312
3.1 Overview of display Display Description Description GROSS Gross weight display Lights up during indication of the gross weight of the baby (after drinking) Net weight display Lights up during indication of the net weight of the baby (before drinking) NET 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.
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 10 Zero setting key Weighing scale will be reset to „0.
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.
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.
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.
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.
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.
6.3 Electromagnetic noise immunity Guidelines and manufacturer’s declaration - electromagnetic noise immunity 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.
Guidelines and manufacturer’s declaration - electromagnetic noise immunity 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. Noise immunity tests IEC 60601 test level Conformity Electromagnetic environment guideline Conducted HF disturbance variables 3 150 kHz to 80 MHz 3V 3 80 MHz to 2.
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.
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.
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.
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.
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.
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.
8.6 Rechargeable battery operation 1 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.
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.
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.
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 .
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. In weighing mode, press and the first function [F1 oFF] will be displayed. Press , the last saved time is displayed, for example, [oFF 15] (example) Press (example) repeatedly until the desired time is displayed, e.g.
9.8 Display background illumination 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] (example) ò To select the desired setting, press bL on Continuous background lighting bL off Background illumination off bL AU Automatic background illumination on when weighing surface is loaded or key pressed. With save select setting , [F3 bk] is displayed.
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.
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 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.
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.
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.
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.
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.
Position adjustment switch and seals: 1 1 2 3 1. 2. 3. Self-destroying seal mark Cover Adjustment switch 14.
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).
Procedure: In weighing mode, press Press Press repeatedly until [tCH] appears. , [Pin] is displayed , Press and subsequently, [P1 SPd] will appear , „P2 CAL“ will be displayed Operate adjustment switch; for position see chap.15 Press Press , [dESC] is displayed repeatedly until [CAL] will be displayed. Confirm with , [UnloAd] appears Ensure that there are no objects on the weighing pan.
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.
