Washer-disinfector G 7831

Transcription

1 Operating instructions Washer-disinfector G 7831 To avoid the risk of accidents or en-gb damage to the machine it is essential to read these instructions before it is installed, commissioned and used for the first time. M.-Nr

2 Contents Warning and safety instructions...5 Symbols on the appliance...9 Intended use Guide to the machine...11 Caring for the environment Disposal of your old machine...13 Opening and closing the door...14 Electric door lock...14 Open the door...14 To close the door...14 To open the door with the emergency release...14 Water softener...15 Programming the water softener...16 Filling the salt reservoir...17 Add salt indicator Areas of application Protein test...19 Loading the machine...20 Water connection spring adapter...21 Dental ENT...25 GYN...25 Chemical processes and technology Dispensing chemical agents Adding rinsing agent...30 Add rinsing agent indicator...31 Setting the dosage Adding neutralising agent...32 Add neutralising agent indicator...33 Adding cleaning agent...34 Adding powder cleaning agent...34 Operation...36 Switching on...36 Starting a programme...36 Selecting the Drying additional function...36 Programme sequence indicators...37 At the end of a programme

3 Contents Cancelling a programme...38 Programme cancellation due to a fault Cancelling the programme manually...38 Switching off...38 Programmable functions The following applies to all programmable functions: To activate programming mode...39 To save values and exit from programming mode...39 To exit from programming mode without saving...39 Dispensing liquid cleaning agent via DOS Setting the dosage concentration Venting the dispensing system Buzzer...41 Changing programme parameters...42 Changing the temperature...42 Changing the temperature holding time Resetting to factory default settings...43 Setting the time and date Process documentation (optional) Maintenance...46 Periodic checks...46 Process validation...47 Routine checks...47 Cleaning the filters in the wash cabinet Cleaning the spray arms...50 Cleaning the control panel Cleaning the front of the machine...51 Cleaning the wash cabinet...51 Cleaning the door seals Dispensing systems Baskets and inserts...52 Problem solving guide...53 Other problems...60 Cleaning the drain pump and non-return valve Cleaning the filters in the water inlet...62 After sales service...63 Installation...64 Building the machine under a continuous worktop

4 Contents Electrical connection...66 Plumbing Drainage...68 Technical data...69 Programme chart

5 Warning and safety instructions This washer-disinfector complies with all relevant local and national safety requirements. Please note that incorrect use can lead to personal injury and damage to property. To avoid the risk of accidents and damage to the washer-disinfector, please read these instructions carefully before starting to use it. Keep these instructions in a safe place for reference, and pass them on to any future user. Correct application This washer-disinfector is designed for use with the applications described in these Operating Instructions only. Alterations or conversions to the machine or using it for purposes other than those for which it was designed are not permitted and could be dangerous. This machine must only be used for cleaning and disinfecting instruments or medical devices if the manufacturer has stated that they are suitable for machine processing. The manufacturer's cleaning and maintenance instructions for instruments etc. must also be observed. Miele cannot be held liable for damage caused by improper or incorrect use of the machine. This washer-disinfector is intended for indoor use only. This machine may only be used in non-stationary locations if a risk assessment of the installation has been carried out by a suitably qualified engineer. Please pay attention to the following notes to avoid injury and damage. This washer-disinfector should be commissioned and then maintained by a Miele authorised and trained service technician only. To ensure compliance with the Medical Devices Directive, a Miele service contract is recommended. Unauthorised repairs could be dangerous and jeopordise the personal safety of the operator, for which the manufacturer cannot be held liable. Do not install the washer-disinfector in an area where there is any danger of explosion or of freezing conditions. The electrical safety of this machine can only be guaranteed if connected to a correctly installed earthing system on site. It is most important that this basic safety requirement is present and regularly tested, and where there is any doubt the on-site wiring system should be inspected by a qualified electrician. The manufacturer cannot be held liable for damage or injury caused by the lack of or inadequacy of an effective earthing system (e.g. electric shock). A damaged or leaking machine could be dangerous and compromise your safety. Disconnect the machine from the mains immediately and call the Miele Service Department. 5

6 Warning and safety instructions Personnel operating the washer-disinfector should be trained regularly. Untrained personnel and children must not be allowed access to the machine or its controls. Take care when handling chemical agents such as cleaning agent, neutralising agent, rinsing agent etc. These may contain irritant or corrosive ingredients. Follow all instructions and safety procedures carefully. Wear protective gloves and goggles. With all chemical agents, the manufacturer's safety instructions and safety data sheets must be observed. This washer-disinfector is designed for operation with water and recommended chemical agents only. Organic solvents and flammable liquid agents must not be used in this machine. These could cause an explosion, damage rubber and plastic components in the machine, and cause liquids to leak out of the machine. Avoid inhalation of powder cleaners. These cleaning agents can cause burning in the mouth and throat if swallowed and can inhibit breathing. The water in the cabinet must not be used as drinking water. Do not sit or lean on an open door. The machine could tip up and be damaged or cause an injury. Be careful when sorting items with sharp pointed ends and positioning them in the machine that you do not hurt yourself or create a danger for others. Sharp items should be placed in baskets with the pointed ends facing downwards. Please be aware that the washer-disinfector may be operating at high temperatures. If the door is opened with the emergency release cord there is a danger of burning, scalding or chemical burning. Where there is a risk of toxic or chemical substances occuring in the suds solution (e.g. aldehyde in the disinfecting agent), it is essential to regularly check door seals and make sure that the steam condenser is functioning correctly. Opening the machine door during a programme interruption carries particular risks in such circumstances. Should personnel accidentally come into contact with toxic vapours or chemical agents, follow the emergency instructions given in the manufacturer's safety data sheets. Mobile units, baskets, inserts and loads must be allowed to cool down before they are unloaded. Any water remaining in containers could still be very hot. Empty them into the wash cabinet before taking them out. Do not touch the heating elements if you open the door during or directly after the end of a programme: you could burn yourself. They remain hot for some time after the end of the programme. Never clean the machine or near vicinity with a hose or a pressure washer. 6

7 Warning and safety instructions The machine must be disconnected from the mains electricity supply before any maintenance or repair work is carried out. Do not reconnect it until the maintenance or repair work has been successfully completed. The following points should be observed to assist in maintaining quality standards when processing medical devices, in order to protect patients, and to avoid damage to the loads being cleaned. If the washer-disinfector is being used for disinfection in accordance with official regulations on the control of epidemics, the steam condenser and its connections to and from the wash cabinet must be cleaned and disinfected whenever any repairs are carried out or parts replaced. If it is necessary to interrupt a programme in exceptional circumstances, this may only be done by authorised personnel. The standard of cleaning and disinfection in the disinfection programmes must be routinely confirmed by the user. The process must be thermo-electrically validated on a regular basis, and checked against documented control results. For thermal disinfection, use temperatures and temperature holding times to achieve the required infection prophylaxis in accordance with current health and safety regulations. Use of chemical agents could under certain circumstances adversely affect the components of the washer-disinfector. Follow the recommendations of the chemical agent manufacturer. In the event of any damage or material deterioration, please contact Miele. Pre-treatments with cleaning or disinfecting agents can create foam, as can certain types of soiling and chemical agents. Foam can have an adverse effect on the disinfection and cleaning result. Foam must not be able to escape from the wash cabinet. It would hinder the correct functioning of the machine. Check the process used regularly to monitor foaming levels. To avoid the risk of damage to the washer-disinfector and any accessories used with it caused by chemical agents, soiling and any reaction between the two please read the notes in "Chemical Processes and Technology". Where a chemical agent is recommended on technical application grounds (e.g. a cleaning agent), this does not imply that the manufacturer of the machine accepts liability for the effect of the chemical on the items being cleaned. Please be aware that changes in formulation, storage conditions etc. which may not be publicised by the chemical manufacturer, can have a negative effect on the cleaning result. 7

8 Warning and safety instructions When using chemical agents such cleaning agent it is essential that the manufacturer's instructions are followed. Only use chemical agents for the purpose they are designed for as specified by the manufacturer, to the exclusion of other chemicals, to avoid such dangers as chemical reactions and material damage. In critical applications where very stringent requirements have to be met, it is strongly recommended that all the relevant factors for the process, such as cleaning agent, water quality etc. are discussed with Miele. Mobile units, baskets and inserts should only be used for the purpose they are designed for. Hollow instruments must be thoroughly cleaned, internally and externally. Empty any containers or utensils before arranging them in the machine. Do not allow any remains of acids or solvents, and in particular hydrochloric acid or chloride solutions, to get into the wash cabinet. Similarly avoid any materials with a corrosive effect. The presence in compounds of any solvents should be minimal (especially those in hazard class A1). Ensure that solutions or steam containing hydrochloric acid do not come into contact with the steel outer casing of the machine, to avoid any corrosion damage. After carrying out any work on the mains water system, the water supply system to the washer-disinfector must be vented. Otherwise, the components in the machine may become damaged. Please follow the advice on installation in these instructions and the separate Installation Instructions. 8

9 Warning and safety instructions Using accessories Only use genuine Miele original accessories with this machine. Consult Miele on the type and application of such equipment. Only use Miele mobile units, baskets and inserts in this machine. Using accessories, mobile units and inserts made by other manufacturers, or making modifications to Miele accessories, can result in unsatisfactory cleaning and disinfecting results, for which Miele cannot be held liable. Any resultant damage would also invalidate the machine guarantee. Only use chemical agents which have been approved by their manufacturer for use in the application you are using. The chemical agent manufacturer is responsible for any negative influences on the material the load is made from and for any damage they may cause to the machine. Disposing of your old machine Please note that the machine may have contamination from blood or other bodily fluids in it and must be decontaminated before disposal. For environmental and safety reasons, ensure the machine is completely drained of any residual water, chemical residues and cleaning agent. Observe safety regulations and wear safety goggles and gloves. Make the door lock inoperable, so that children cannot accidentally shut themselves in. Then make appropriate arrangements for the safe disposal of the appliance. The manufacturer cannot be held liable for damage caused by non-compliance with these Warning and Safety instructions. Symbols on the appliance Warning: Observe the operating instructions. Warning: Danger of electric shock. 9

10 Intended use This washer-disinfector can be used to clean, rinse, thermally disinfect and dry a wide range of reusable medical devices used in dental, ENT and gynacological surgery. Follow the manufacturer's instructions (according to EN ISO 17664) on how to process their items by machine. Areas of application: Instruments and accessories from: dental medicine, gynaecology, ear, nose and throat medicine. Processing instruments by machine achieves reproducible results and should be used in preference to processing them by hand. Where disinfection is required for the protection of personnel and patients, carry out thermal disinfection, e.g. using the DESIN vario TD programme. The parameters for thermal disinfection according to EN ISO (A 0 concept) vary depending on the disinfection standard required. They are 80 C (+ 5 C, - 0 C) with a 10 min holding time (A 0 600) or 90 C (+ 5 C, - 0 C) with a 5 min holding time (A ). An A 0 value of 3000 is suitable for deactivating the HBV virus. National health and safety regulations regarding disinfection must also be observed. The cleaning programme as well as any chemical agents must be chosen according to the type of soiling and load being processed and to suit the level of cleaning required. The cleaning result must ensure that the instruments can be disinfected correctly, that no residues are left behind, that subsequent sterilisation can be carried out and that the instruments can be used again safely. Medical devices are best reprocessed using the DESIN vario TD programme. The use of a suitable carrier (basket, module, insert etc.) is important to ensure the adequate cleaning of the load. Examples are given in the section "Areas of application". The machine complies with EN ISO for validation purposes. 10

11 Guide to the machine On/Off switch I-0 Door release Display button to switch between the displays for: - actual temperature - elapsed time - current block Drying button with indicator light Start button with indicator light Programme sequence indicators: Reactivation Pre-wash Main wash Rinse / Final rinse Drying Programme finished Check/Fault indicators: / Inlet/drain Add salt Add neutralising agent Add rinsing agent DOS optical interface for service technician; Add liquid cleaning agent indicator when connected toak60dosmodule. Programme selector Stop A Freely programmable programme Universal Pre-rinse Drain variotd SPECIAL 93 C-10' 11

12 Guide to the machine Connection for DOS module K 60 at the rear of the machine Filter combination Salt reservoir Neutralising agent reservoir (with dosage selector) Level indicator for rinsing agent Dispenser for powder cleaning agent Rinsing agent reservoir (with dosage selector) Optional: Interface connector RS 232 at the rear of the machine 12

13 Caring for the environment Disposal of the packing material The transport and protective packing has been selected from materials which are environmentally friendly for disposal and should be recycled. Ensure that any plastic wrappings, bags etc. are disposed of safely and kept out of the reach of babies and young children. Danger of suffocation. Disposal of your old machine Electrical and electronic machines often contain materials which, if handled or disposed of incorrectly, could be potentially hazardous to human health and to the environment. They are, however, essential for the correct functioning of your machine. Please do not therefore dispose of it with your general waste. Please dispose of it at your local community waste collection / recycling centre or contact your dealer for advice. Ensure that it presents no danger to children while being stored for disposal. 13

14 Opening and closing the door Electric door lock This machine is equipped with an electric door lock. The door can only be opened when: the electricity supply to the machine is switched on and the On-Off switch I-0 is pressed in. Open the door Press the door button in as far as it will go, and at the same time grip the handle and open the door. Do not touch the heating elements if you open the door during or directly after the end of a programme; you could burn yourself. They remain hot for some time after the end of the programme. To open the door with the emergency release The emergency release should only be used when the door cannot be opened normally, e.g. in the event of a power failure. Important note for SPECIAL programmes - read the notes in the Warning and Safety instructions. There is a danger of burning, scalding and chemical burning if the door is opened using the emergency door release cord. Turn the programme selector to. Switch the machine off with the I-0 switch. After the first intake of water it is no longer possible to open the door. The door remains locked until the end of the programme. It is still possible to open the door during the PRE-RINSE and DRAIN programmes. The machine can be programmed (by a Miele approved service technician) to open during "Drying". To close the door Lift the door upwards and push until it clicks shut. Do not press the door release button whilst shutting the door. Pull down the emergency release cord behind the door outer panel. 14

15 Water softener In order to achieve good cleaning results, the washer-disinfector needs to operate with soft water. Hard water results in the build-up of calcium deposits on instruments, etc, and in the washer-disinfector. Mains water with a hardness level higher than 0.7 mmol/l (4 dh German scale) needs to be softened. This takes place automatically in the integrated water softener. The water softener requires reactivation salt. The washer-disinfector must be programmed to correspond to the water hardness in your area. Your local water authority will be able to advise you on the water hardness in your area. Where the water hardness fluctuates e.g. between mmol/l (8-17 dh German scale) always programme the washer-disinfector to the higher value (3.1 mmol/l in this example). In the event of a fault, it will help the service technician if you know the hardness of your local water supply. Enter the water hardness below: dh / mmol/l The built-in water softener has settings from 1 dh -35 dh ( mmol/l). If the water hardness level exceeds 35 dh or 6.3 mmol/l then a water softening system, e.g. the Miele "Aqua-Soft system G 7897", should be considered. 15

16 Water softener Table of settings dh mmol/l f Setting *) **) *) The "0" setting is only for machines which do not have a water softener **) Factory default setting Programming the water softener Switch off the machine. Turn the programme selector to. Press and at the same time, hold them in and, whilst doing so, switch the machine on with the I-0 switch. The current programme status P... will appear in the display. The indicator light / will come on. Press once. E01 will appear in the display. Turn the programme selector one switch position clockwise (1 o'clock position). The number 19 will appear in the display (the factory water hardness default setting in dh, equivalent to 3.4 mmol/l). Press as many times as is necessary, or hold it in until the required value (degree of hardness in dh) appears in the display. Once the number 35 has been reached, the counter will begin again at 0. Press. SP will appear in the display. Press again. The setting will now be stored in memory. The display will clear. The machine is now ready for use. 16

17 Water softener Filling the salt reservoir Only use special coarse grained reactivation salt with granules of approx. 1-4 mm. Do not use other types of salt such as cooking salt, agricultural grade or gritting salt. These may contain insoluble additives which can impair the functioning of the water softener. If in doubt consult the Miele Professional Department. The salt reservoir holds approx. 1.2 kg of salt. Remove the bottom basket from the machine. Unscrew the salt reservoir cap. Before filling the salt reservoir with reactivation salt for the first time, you must fill it with approx. 1 litre of water to enable the salt to dissolve. Once the washer-disinfector has been used, there is always sufficient water in the reservoir. Inadvertently filling the salt reservoir with cleaning agent will damage the water softener. Before filling the salt reservoir make sure that you have picked up the right packet of reactivation salt. Place the funnel provided in place. Fill carefully with salt. As it is poured in, displaced water will run out. 17

18 Water softener Add salt indicator Remove the funnel and wipe any residual salt off the seal and the screw threads on the socket. Screw the cap back on firmly. Run the PRE-RINSE programme to remove any traces of salt from the cabinet. The programme sequence may be delayed for a few minutes after the start of the PRE-RINSE programme. This is not a fault. The water softener is being reactivated. Reactivation takes place automatically during a programme. The programme sequence indicator light lights up whilst this is happening. Add salt when the Add salt indicator lights up. 18

19 Areas of application This washer-disinfector normally requires an upper and a lower basket. Various inserts and special baskets are also available for a wide variety of instruments and utensils. Select baskets and inserts which are appropriate for the application. Notes on the individual areas of application and examples of loading are given on the following pages. Before starting a programme you should carry out a visual check on the following: Is everything correctly loaded/connected for cleaning? Are the lumen or necks of hollow instruments positioned so that water can access them unhindered? Are the spray arms clean and do they rotate freely? Are the filters clean? Remove any coarse soiling and clean them properly if necessary. Is the adapter connecting the water supply to the spray arms/jets correctly connected? Are all chemical containers filled sufficiently? At the end of each programme: Carry out a visual check of the load for cleanliness. Check that all hollow shafted instruments are still securely located on their jets. Any hollow instruments that have become disconnected from their adapters during processing must be re-processed. Check that the lumen of hollow instruments are free of obstruction. Check that jets and connectors are securely held in position in the baskets or inserts. Protein test Cleaning results should be subjected to periodic protein tests, e.g. with the Miele test kit. 19

20 Areas of application Loading the machine Arrange the load so that water can access all surfaces. This ensures that they get properly cleaned. Do not place items to be cleaned inside other pieces where they may be concealed. Hollow instruments must be throughly cleaned, internally and externally. Ensure that instruments with long narrow hollow sections can be flushed through properly before placing them in inserts or connecting them to jets. Hollow vessels should be inverted and placed in the correct baskets and inserts to ensure that water can flow in and out of them unrestricted. Deep-sided items should be placed at an angle to make sure water runs off them freely. Tall, narrow, hollow items should be placed in the centre of the baskets to ensure better water coverage. Lightweight items should be secured with a cover net (e.g. an A 6) and small items placed in a mesh tray to prevent them blocking the spray arms. Mobile units or baskets with an adapter must engage correctly. The spray arms must not be blocked by items which are too tall or which hang down in their path. It is advisable to use instruments made of surgical steel only, as these are not susceptible to corrosion. Nickel plated instruments and coloured anodised aluminium instruments are not suitable for machine processing. Plastic items must be thermally stable. Disposable instruments must not be processed in the machine. Preparing the load Empty all containers before loading into the machine (paying particular attention to regulations regarding infectious diseases and epidemics). Ensure that acids and residual solvents, especially hydrochloric acid or chlorides, do not get into the wash cabinet. Loading instruments Contaminated instruments can be placed directly in the machine without pre-treatment (no soaking required). 20

21 Areas of application Water connection spring adapter Make sure that the spring adapter for water connection engages correctly when a basket or injector unit is inserted in the machine. It must be 4-5 mm higher than the water connection inlet in the machine. If it is not, adjust the adapter accordingly. Loosen lock ring. Push up adaptor. Tighten lock ring. 21

22 Areas of application Top basket / injector unit O 801/2 Front and rear sections for e.g. E 800 and E 801 inserts. The central axis is fitted with a holder and 10 jets in silicone holders for the direct injection of hollow instruments. This ensures adequate cleaning and disinfection both internally and externally. To minimise the risk of injury from instruments that are sharp at each end, and when arranging instruments that have a probe pointing upwards, instruments should be loaded starting at the back and working forwards, and unloaded starting at the front and working backwards. Upper basket O 800/1 for inserts and mesh trays, e.g. E 802 and E 146. Bottom basket U 800 for inserts, e.g. E 800 and E 806. Hollow instruments must be dried internally with filtered compressed air. This also ensures there are no blockages. 22

23 Areas of application Dental A special holder AUF 2 (optional extra) is required for processing hand pieces and contra angles in top basket O 801/2. Separate operating instructions are supplied with the holder. Fibre optic hand pieces and contra angles should be monitored frequently. Those with fibre optic rods are more durable than those with fibre optic strands. Care should be taken immediately after treating a patient that as little dental cement or amalgam or polishing paste remains on the instruments as possible. If necessary wipe off excess with a swab. Manual cleaning can be carried out if required after thermal disinfection in accordance with national health and safety regulations. E 806 for 11 tray bases/trays in the bottom basket. Rhodium plated specula must be arranged in such a way that they cannot suffer mechanical damage. Not all specula with glass are suitable for machine processing. E 800 for 3x E 146 or 3x E 363 mesh trays. 23

24 Areas of application It is preferable for mouth rinse beakers to be washed in the top basket. Greater fluctuations in temperatures and mechanical action in the bottom basket area can cause stress cracks and corrosion. E 805 for 8 half trays in the bottom basket. E 801/1 for 8 mouth rinse beakers. 24

25 Areas of application ENT GYN E 803 for ear funnels and ear and nasal specula. Load the specula opened to allow all surfaces to be accessed. The thin chome plating on ear funnels can be very sensitive to neutralising agents. E 416 Insert for gynaecology specula. Load as shown in the illustration. One part specula: Place one part specula opened between the holders. Two part specula: Place the lower parts in the narrow sections of the insert, on the left of the illustration. Place the upper parts in the wide sections of the insert, on the right of the illustration. Specula should always be arranged in between two holders so that they do not come into contact or cover each other. 25

26 Chemical processes and technology General notes Problem If seals, hoses and plastics in the washer-disinfector suffer damage they will not be water-tight and will not function correctly. Heavy foaming during a programme affects cleaning and rinsing results. Foam escaping from the wash cabinet can cause damage to the washer-disinfector. Cleaning processes cannot be regulated and validated where there has been a build-up of foam.. Corrosion to stainless steel in the wash cabinet and to accessories can give them a different appearance: rust (red marks / discolouration), black marks / discolouration, white marks / discolouration (etched surface). Corrosive pitting can lead to the washer-disinfector not being water-tight. Depending on application, corrosion can influence cleaning and rinsing results (laboratory analysis) or cause corrosion to stainless steel items in the cabinet. How to resolve it Establish the cause of the damage and rectify it. See information regarding "Chemical agents", "Soiling" and "Reaction between chemical agents and soiling". Establish the cause of the foam and rectify it. Check the process used regularly to monitor foaming levels. See information regarding "Chemical agents", "Soiling" and "Reaction between chemical agents and soiling". Establish the cause of the corrosion and rectify it. See information regarding "Chemical agents", "Soiling" and "Reaction between chemical agents and soiling". 26

27 Chemical processes and technology Chemical agents Problem The ingredients in chemical agents have a strong influence on the longevity and functionality (throughput) of the dispensing system. The dispensing system (hoses and pumps) should be set up for a particular type of chemical agent. General types: alkaline to ph neutral products, acidic to ph neutral products Chemical agents can damage elastomers and plastics in the washer-disinfector and accessories. How to resolve it Observe the chemical agent manufacturer's instructions and recommendations. Carry out a regular visual check of the dispensing system for any damage. Check the flow rate of the dispensing system regularly. Observe the chemical agent manufacturer's instructions and recommendations. Carry out a regular visual check of any accessible elastomers and plastics for damage. 27

28 Chemical processes and technology Chemical agents Problem The following chemical agents can cause large amounts of foam to build up: cleaning agents and rinsing agents containing tensides, emulsifiers. Foam can occur: in the programme block in which the chemical agent is dispensed, in the following programme block if it has been spilt, in the following programme with rinsing agent if it has been spilt. De-foaming agents, especially silicone based ones can cause the following: deposits to build up in the cabinet, deposits to build up on the load, damage to elastomers and plastics in the washer-disinfector, damage to certain plastics (e.g. polycarbonate and plexiglass) in the load being processed. How to resolve it Process parameters in the wash programme, such as dispensing temperature, dosage concentration etc. must be set to ensure the whole process is foam free or very low foaming. Please observe the chemical agent manufacturer's instructions. De-foaming agents should be used in exceptional cases only, for instance when absolutely essential for the process. The wash cabinet and accessories should be periodically cleaned without a load and without de-foaming agent using the SPECIAL 93 C-10' programme. Please contact Miele for advice. 28

29 Chemical processes and technology Soiling Problem The following substances can lead to a heavy build-up of foam during washing and rinsing: some disinfecting agents and dishwashing detergents, active foaming agents such as tensides. The following substances cause corrosion to stainless steel in the wash cabinet and on accessories: hydrochloric acid, other substances containing chlorides such as sodium chloride etc., concentrated sulphuric acid, chromic acid, particles of iron and swarf. How to resolve it Thoroughly rinse items in water beforehand. Select a cleaning programme with at least one short pre-rinse in cold or hot water. Thoroughly rinse items in water beforehand. Place items drip dried into mobile units, baskets and inserts and then place these in the wash cabinet. Reaction between chemical agents and soiling Problem How to resolve it Soiling containing high protein levels such as blood can cause a heavy build-up of foam when processed with alkaline chemical agents. Non-precious metals such as aluminium, magnesium and zinc can release hydrogen when processed with very acidic or alkaline chemical agents (oxyhydrogen reaction). Select a cleaning programme with at least one short pre-rinse in cold water. Please observe the chemical agent manufacturer's instructions. 29

30 Dispensing chemical agents Only use agents formulated specifically for use in washer-disinfectors and make sure you follow the manufacturer's instructions. Pay particular attention to information regarding toxic residues. Adding rinsing agent Rinsing agent is necessary to ensure water does not cling and leave marks on items during the drying phase and to help items dry faster after they have been washed. Rinsing agent is poured into the storage reservoir and the amount set is dispensed automatically. Only fill the rinsing agent reservoir with rinsing agent formulated for washer-disinfectors. Do not fill it with cleaning agent. This would damage the reservoir. Open the door fully. Add rinsing agent only until it is visible in the opening. The rinsing agent reservoir holds approx. 125 ml. Close the flap firmly. The flap must click into position, otherwise water could get into the rinsing agent reservoir during the programme. Mop up any spilt rinsing agent. This prevents over-foaming occurring during the next programme. The flap should always remain closed. Only open it to add more rinsing agent. Press the button in the direction of the arrow until the flap springs open. 30

31 Dispensing chemical agents Add rinsing agent indicator Setting the dosage Add rinsing agent to the rinsing agent reservoir when the Add rinsing agent indicator lights up. The dosage adjuster (see arrow) in the opening has settings adjustable from 3 to 8 (3-8 ml). It is set to 3 (3 ml) at the factory. If spots appear on items: Use a higher setting. If clouding or smearing appears on items: Use a lower setting. 31

32 Dispensing chemical agents Adding neutralising agent If with time discolouration or rust spots appear on instruments, especially at joints, a special neutralising agent can be used (contact Miele Professional for advice if necessary). Neutralising agent (ph-level: acidic) neutralises residues of alkaline cleaning agents on the surface of instruments and utensils. It is automatically dispensed in Programme stage Rinse 2 following the cleaning cycle of a programme. The neutralising agent reservoir in the door of the washer-disinfector needs to be filled with neutralising agent. Undo the screw cap. The neutralising agent reservoir holds approx. 180 ml. Add neutralising agent until the level indicator is dark (see arrow on illustration). Use a funnel if necessary. Replace and firmly tighten the screw cap. Thoroughly clean up any spillage. 32

33 Dispensing chemical agents Add neutralising agent indicator The neutralising agent dosage is set to 6 ml at the factory. If required, the dosage setting can be adjusted by a Miele approved service technician If the cleaning agent being used is mildly alkaline, you will need to use a phosphoric acid based neutralising agent. If using a neutral enzyme based liquid cleaning agent, you will need to use a citric acid based neutralising agent. Add neutralising agent to the neutralising agent reservoir when the Add neutralising agent indicator lights up. 33

34 Dispensing chemical agents Adding cleaning agent Only use cleaning agents suitable for washer-disinfectors. Do not use cleaning agents designed for domestic dishwashers. A liquid cleaning agent can be dispensed via the optional DOS module K 60 (dispensing pump for liquid cleaning agent). The DOS module is connected externally. See "Programmable functions" for details on how to vent the dispensing system and set the dosage. We recommend using a DOS module (available as an optional extra) for the dispensing of liquid cleaning agent. Adding powder cleaning agent Do not inhale or ingest powder cleaning agent. It can cause burning in the mouth and throat and inhibit breathing. Powder cleaning agent must be placed in the powder cleaning agent dispenser before every programme (except with "PRE-RINSE" and "DRAIN"). Dosage example: Approx. 6.5 litres of water are taken into the machine in the "Main wash" programme stage. 20 g of cleaning agent will be required for a cleaning agent concentration of approx. 3 g/l. Follow manufacturer's instructions if they differ. 34

35 Dispensing chemical agents At the end of the programme, check that there are no cleaning agent residues remaining in the dispenser. If there are, you will need to repeat the programme. Press the button on the powder cleaning agent dispenser (see arrow). The flap will spring open. The flap is always open at the end of a programme. For environmental reasons, please consider the following points when selecting a cleaning agent: What level of alkalinity is required to achieve the correct level of cleaning? Is active chlorine required for disinfection or oxydation (pigment removal)? Are tensides required for dispersal and emulsification? Only use specially formulated cleaning agents which are mildly alkaline and free of active chlorine in thermal disinfecting programmes. Some types of soiling may require different combinations of cleaning agents and other additives. The Miele Professional Department will be pleased to advise you. Add powder cleaning agent to compartment II. Close the dispenser lid. 35

36 Operation Switching on Close the door. Open the stopcock. Press the I-0 switch. When the programme selector is at, a dot lights up in the display. Starting a programme Choose your programme according to the type of instruments or utensils being cleaned and the degree of soiling. The different programmes and their uses are described in the Programme chart at the end of this booklet. Turn the programme selector clockwise or anti-clockwise to the required programme. The temperature of the first stage of the programme selected will appear in the display, except with and. The indicator light next to the button will flash. Selecting the Drying additional function The Drying additional function may be selected immediately after the programme has been selected (except with Pre-rinse and Drain ). To do this: Press. The drying phase operates with pulsed heating for ten minutes. The total running time of the programme lengthens accordingly. Press the Start button. The current temperature will appear in the display. The indicator light next to the Start button will light up. Once the programme is running, all the other programmes are blocked. If the programme selector is then turned to another programme, the values shown in the display will go out. The values can be seen again if the programme selector is turned back to the position of the programme currently in operation. 36

37 Operation During a programme, you can switch between the following displays: the current temperature, the elapsed programme duration and the active wash block: 1 = Pre-wash 1 2 = Pre-wash 2 3 = Main wash 1 4 = Main wash 2 5 = Chemical disinfection * 6 = Rinse 1 7 = Rinse 2 8 = Rinse 3 9 = Rinse 4 10 = Final rinse 1 11 = Final rinse 2 13 = Drying Press to switch between the displays. Programme sequence indicators The indicator light for the active programme stage lights up during the programme. Reactivation Pre-wash 1+2 Main wash 1+2* Rinse 1-4/Final rinse 1+2 Drying End of programme (Programme parameters have been reached) * Rinse block 5 (normally for chemical disinfection) can be programmed in as an extra stage in freely programmable Programme A. It is then not possible to dispense chemical disinfection agents. The programme sequence indicator will light up when Rinse block 5 is active. At the end of a programme The programme has ended correctly when lights up constantly in the programme sequence display and the indicator has gone out. A 0 will appear in the middle of the display. All the other indicators come on and go out in sequence. At the same time a buzzer sounds for a maximum of 30 seconds (default setting). The buzzer can be changed, see "Programmable functions". Use the button to call up the total running time of a programme or the current temperature. Immediately the programme finishes, partially open the door of the machine (by about 10 cm) for 10 to 15 mins. Only then unload the machine. A good drying result is achieved in the residual heat, which should help to prevent the instruments corroding. 37

38 Operation Cancelling a programme Where a programme is cancelled, the items must be reprocessed. Programme cancellation due to a fault If the programme is cancelled before completion, a fault message ".." will appear in the display. Depending on the cause, the appropriate measures must be taken to resolve the problem. Proceed as described in "Problem solving guide". Cancelling the programme manually Once a programme is running it should only be cancelled in extreme cases, e.g. when articles in the machine rattle or jostle against each other and have to be rearranged. When testing to EN ISO or HTM 2030 standards, the programme must not be interrupted or cancelled. When dealing with official cases requiring the containing of epidemics, the contaminated water must not be pumped away without being disinfected first. Turn the programme selector to. The programme will be cancelled after approx. 2 seconds. Open the door. Caution. Water and items in the machine may be hot. Danger of burning or scalding. Arrange the items securely. (Wear protective gloves where necessary, and observe appropriate health and safety regulations relating to infectious diseases). Replenish powder cleaning agent if necessary. Close the door. Start the Drain programme. The water will drain away. Select and start the programme again. The following procedure should be followed when dealing with official cases requiring the containing of epidemics using the SPECIAL 93 C-10 programme: Start the programme again. The display will show the temperature holding time required counting downwards. Switching off Press and release the I-0 switch. As the machine is fitted with an electric door lock, the door can only be opened if the I-0 switch is pressed in (see "Opening and closing the door"). 38

39 Programmable functions For future servicing work, please document any alterations to the factory default settings. Enter any alterations in the appropriate box. General notes: Switch positions that have not been allocated a function are indicated in the middle part of the display by a bar ( - ). The programming level is called up via the position. It is shown as E.. in the display. When processing medical devices, any changes made to programmes or dispensing systems must be documented in a log book kept with the machine (in accordance with the Medical Devices Directive). The machine's cleaning and disinfecting standards must also be re-validated. The following applies to all programmable functions: To activate programming mode Turn the programme selector to. Switch off the machine. Press and at the same time, hold them in and, whilst doing so, press the I-0 switch. The current programme version P.. will appear in the display. The / indicator light comes on. To save values and exit from programming mode Press. Press again. SP will appear in the display. The alteration is now saved. To exit from programming mode without saving Switch the machine off with the I-0 switch. The alteration will not be saved. 39

40 Programmable functions Dispensing liquid cleaning agent via DOS 1 Setting the dosage concentration The dosage concentration must be set exclusively for liquid cleaning agent. Set it according to the manufacturer's recommendations or the official standards required. The dosage concentration must not be altered even if powder cleaning agent is dispensed via the dispenser in the door. Step Press until E02 appears. Turn the programme selector to. without DOS Module connected: with DOS Module connected: Press as many times as necessary or hold pressed in until the required value appears in the display, e.g Display / Result E02 10 = 10 sec dosage duration 1.00 = 1.0 % dosage concentration 0.50 The dosage duration/concentration level has now been set. Dosage concentration set: Venting the dispensing system The dispensing system must be vented: when the dosage concentration is set for the first time, if the liquid cleaning agent container runs out and is not refilled in time. Step Press until E02 appears. Display / Result E02 Turn the programme selector to A. d 1 Press. Exit from programming mode. Then start the Pre-rinse programme. The dispensing system will be vented automatically. 0 will appear in the display when the venting process has finished. Any agents which are in the wash cabinet after the venting process will be diluted before being drained away. 40

41 Buzzer Programmable functions A buzzer can be programmed for the following: a constant tone will sound at the end of a programme, a buzzer will sound at one second intervals as a fault warning, and 3 short beeps followed by a 2 second pause, then 3 short beeps etc will sound as a reminder to remove a test item. The reminder to remove a test item function has to be programmed by a Miele service technician or an authorised and trained Miele Service Dealer. The buzzer settings are displayed as numbers: 20 Switched off 21 At the end of a programme (factory default setting) 22 Fault indication 23 At end of a programme + fault indication 24 Reminder to remove a test item 25 At the end of a programme + reminder to remove a test item 26 Fault indication + reminder to remove a test item 27 At the end of programme + fault indication + reminder to remove a test item. Step Press until E04 appears. Display / Result E04 Turn the programme selector to. 21 Press repeatedly or hold pressed in until the required number appears in the display, e.g Value set: The buzzer will sound at the setting selected for 30 seconds. To switch the buzzer off early: turn the programme selector to, press. interrupt the electricity supply, e.g. open the door. 41

42 Programmable functions Changing programme parameters The parameters for programmes A, and Vario TD can be changed to suit particular requirements. To do this the temperature and the temperature holding time in the Main wash 1 and Final rinse 2 programme blocks can be changed. The programme chart at the end of these instructions shows the factory default settings for the temperature and temperature holding time of the individual programme blocks. Please make a note of any changes in the appropriate section of the programme chart. The programme parameters in the Main wash 1 programme block of the SPECIAL 93 C-10' programme cannot be changed. Values which can be set for the temperature: 30 C - 93 C in the A and vario TD programmes, 30 C-70 Cin the programme. Temperatures above 55 C cause blood denaturation and possibly fixation. In the "vario TD" programme the requirements for the appropriate infection prophylaxis must be observed. Values which can be set for the temperature holding time: 1-15 minutes. Changing the temperature Step Display / Result Press button repeatedly or hold pressed in until E09 for Main wash 1 the level of the programme block you wish to change E25 for Final rinse 2 appears in the display. Turn the programme selector to the programme you wish to change, e.g.. Press or hold pressed in until the required value appears in the display, e.g. 70 C C ~65 C ~70 42

43 Programmable functions Changing the temperature holding time Step Display / Result Press button repeatedly or hold pressed in until E10 for Main wash 1 the level of the programme block you wish to change E26 for Final rinse 2 appears in the display. Turn the programme selector to the programme you wish to change, e.g.. Press repeatedly or hold pressed in until the required value appears in the display, e.g. 10. min 1 min 10 Resetting to factory default settings Step Press repeatedly or hold it pressed in until E33 appears in the display. Display / Result E33 Turn the programme selector to a programme. factory default setting: electronics have been programmed to another setting: Press when PP shows in the display. 00 PP 00, the factory default settings have been reinstated. The water softener has been reset to the factory default setting. It will need to be reprogrammed, see "Programming the water softener". Programme changes which have been made to the freely programmable Programme A will be kept and will not be reset. 43