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reactions between processing chemicals and dirt

Effects

Action

Natural oils and greases can be
saponified with alkaline processing
chemicals. This may cause a lot of
foaming.

– Use the OIL program (if available).

– Use the special program with

emulsifier (neutral pH) metering for
pre-rinsing.

– Taking the specific application into

account, add an antifoaming agent,
one without silicone oils if possible.

In combination with alkaline processing
chemicals, loads with soiling that
contains proteins, e.g. blood, can
cause excessive foaming.

– Select a wash program with one or

more short pre-rinses with cold
water.

In combination with very acidic or
alkaline processing chemicals, base
metals such as aluminum, magnesium
and zinc can release hydrogen
(explosive oxyhydrogen gas reactions).

– Observe the instructions of the

manufacturer of the processing
chemicals.

Chemical process

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Содержание G 7835 CD

Страница 1: ...rating instructions Washer Disinfector G 7835 CD To avoid the risk of personal injury or damage to the appliance it is essential that you read these operating instructions before installation and use M Nr 07 776 530 en CA ...

Страница 2: ...older with mobile unit coding 19 Setting the mobile unit coding 19 Applications 21 Protein testing 21 How to load the machine 22 Spring loaded adapter for the water line 23 How to adjust the upper basket 23 OR Instruments OP 24 Ophthalmological instruments 25 Anesthesia instruments AN 26 Baby bottles BC 27 OR shoes OS 28 Laboratory equipment LG 29 Chemical process 30 Adding liquid detergents and n...

Страница 3: ... the flat and micro fine filters 46 Cleaning the spray arms 47 Cleaning the control panel 48 Cleaning the front of the appliance 48 Cleaning the wash cabinet 48 Cleaning the door seal 48 Mobile units baskets and inserts 49 Servicing the drying unit 50 Changing the coarse filter 50 Changing the fine filter 51 Troubleshooting 52 Temperature sensor 52 Cleaning the filters in the water inlet 53 Cleani...

Страница 4: ...vice agency in strict accordance with national and local safety regulations and standards To avoid injury please follow these instructions The machine must be installed maintained and repaired by a Miele Service Technician For best compliance with Good Laboratory Practice and regulations governing the use of medical products a Miele Ser vice and Repair Contract is recommended Repairs by unqualifie...

Страница 5: ...open the door there is the danger of scalding and heat or chemical burns If disinfectants have been used there is also a risk of inhaling toxic vapors If toxic chemicals may be present in the wash cabinet e g aldehydes in the disinfectant the door seal and if applicable the steam condenser must regularly be checked for soundness Opening the washer door during a program interruption is particularly...

Страница 6: ...chemical disinfectant at moderate temperatures for example 65 C or below do NOT fulfill the requirement for mandatory decontamination under Section 18 of the IfSG These programs should only be used when the items in question are temperature sensitive The disinfection parameters are based on the trials carried out by the disinfectant manufacturer Always observe their specifications for handling app...

Страница 7: ...Miele s Application Specialist For applications that demand especially stringent cleaning and rinsing e g chemical analysis special industrial processes etc the operator must perform quality control on a regular basis to ensure the required standard The mobile units baskets and inserts must only be used for their specific applications Hollow items must be positioned for full exposure to wash water...

Страница 8: ...chemicals Symbols on the appliance Caution Comply with the Operating Instructions Caution Danger of electric shock Disposing of your old appliance Old appliances may be contaminated from exposure to blood or other body fluids and must therefore be decontaminated before disposal For safety and environmental protection be sure to drain remove all processing chemical residue Comply with safety regula...

Страница 9: ...ware is used to cover a range of equipment and items For standardized results it is preferable to machine wash lab instruments and equipment When disinfection is required to protect staff and or patients the preference is for thermal disinfection e g with the DESIN vario TD process According to the A0 concept described in EN ISO 15883 1 thermal disinfection occurs at 80 C 5 C 0 C with 10 min holdi...

Страница 10: ...f suitable loading accessories mobile carts modules inserts See the section on Applications for examples The washer disinfector is designed to rinse with tap water or processed water e g distilled water pure water deionized water demineralized water depending on the quality required for your application s The water quality selected is especially important for labware intended for analytical uses U...

Страница 11: ...regenerating salt water softener eService panel fSensor access for validation On the rear side of the appliance gConnection for DOS Module K 60 Dispensing pump for neutralizer white and Dispensing pump for chem disinfectant green hSerial interface upper left behind cover plate Description of the appliance 11 ...

Страница 12: ...the background light on again Fault messages during operation are shown in the display See the Programming manual for a table of all the fault messages bON OFF button I 0 cCursor button left 1 moves the cursor to the left to the previous menu to the previous parameter to the previous input location Description of the appliance 12 ...

Страница 13: ...r program slots 24 and above page forward through the Menus Enter letters and numerals Change default settings e g service parameters gDoor switch 5 hStart button 6 Starting a program Activate the programming mode Confirm the values and settings Confirm the Menu items to enter the corresponding Sub Menu iStop button 7 Cancelling a program Leave the programming mode without saving Leave the Menu jO...

Страница 14: ...t for quite a few minutes after the program has ended and can cause burns How to close the door Lift the door upward and push it until it clicks shut How to use the emergency door release The emergency release feature should only be used when it is not possible to open the door normally e g in the case of a power outage For all DESIN programs please read the Important safety information Press the ...

Страница 15: ...supply Your local water authority will provide information about the hardness of the tap water in your area The factory default for the water softener is set to a hardness of 19 d 3 4 mmol l If the actual water hardness is different even if it is below 4 d the factory default setting will need to be changed using the electronic control If the water hardness is known to fluctuate e g 8 17 d always ...

Страница 16: ...r Do not use other types of salt e g table salt agricultural or de icing salt These could contain components which are insoluble in water and could damage the water softener If in doubt consult Miele Technical Service The salt reservoir holds approximately 2 5 kg salt Inadvertently filling the salt reservoir with detergent WILL damage the water softener Before filling the reservoir always make sur...

Страница 17: ...any residual salt off the thread and seal of the reservoir Screw the cap on securely Immediately after this step start the REMOVE SALT program to remove any traces of salt from the inside of the machine Note There may be a delay of a few minutes before the REMOVE SALT program starts due to the reactivation of the water softener Water softener 17 ...

Страница 18: ... for mobile units with automatic recognition AWK pre set program slots to be used interchangeably Mobile unit coding The automatic mobile unit recognition feature assigns each mobile unit to a program slot For this to work the mobile units must be coded with a magnetic strip with a bit combination In operating level C only the program assigned to the corresponding program slot is available for a g...

Страница 19: ...I I I I 0 I I 0 I 0 0 I I 0 0 I 0 I I 0 The sum of the coding must be an even number If the sum of the coding is an odd number you will see the message CHECK MOBILE UNIT RECOGNITION If the mobile unit coding equals 0 you will see the message NO MOBILE UNIT RECOGNITION In both cases no program can be started The mobile unit recognition must be re set Setting the mobile unit coding To set or modify ...

Страница 20: ...placed in the rail in such a way that the set bit coding according to the table is visible through the round window in the rail Lay the rail in the holder and screw into place The magnetic strip for washer disinfector G 7835 and G 7836 must contain gray magnets Automatic mobile unit recognition AWK 20 ...

Страница 21: ...s the filter combination free of coarse debris remove any coarse material and clean the coarse fine flat and micro fine filters as needed Is the adapter properly connected to the water supply for the spray arms and nozzles Are the process chemical dispensers full detergent neutralizer etc After EVERY program completion conduct the following visual inspection Inspect the labware for cleanliness Hav...

Страница 22: ...ic mobile unit recognition Deep based items should be arranged at an angle so that water can run off easily Tall narrow hollow items should be placed in the center of the mobile unit for best water coverage Mobile units with an adapter must be properly connected Modules must be properly connected to the mobile unit The spray arms must not be blocked by items that are too tall or hang through the b...

Страница 23: ... Move the adapter up to the proper height b Tighten down the locking ring c How to adjust the upper basket The upper basket can be adjusted above and below the middle position by 2 cm each Depending on the height selected for the upper basket and which inserts are used items of various heights can be arranged in the baskets To adjust the upper basket Pull the upper basket out as far as it will go ...

Страница 24: ...r instruments The mobile units for OP instruments come with their own instructions for use When processing instruments for minimally invasive procedures e g endosurgery it is essential that the insides be thoroughly cleaned before washing Only the vario TD program is suitable for thorough cleaning Always comply with the specific loading instructions and all applicable requirements including the us...

Страница 25: ... in the injector basket The lower level of the injector basket can hold E 441 1 or E 142 tray mesh inserts for use with solid bodied instruments The mobile units for ophthalmological OR instruments come with their own instructions for use The lower water inflow to the washer disinfector will need to be modified as per the instructions for the E 429 This also means that the E 429 cannot be used int...

Страница 26: ...mical disinfection program need to be increased The efficacy of thermochemical disinfection depends on the disinfectant used If no sterilization will occur after washing germ growth will need to be inhibited during storage Because this requires thorough drying a sufficient amount of drying time must be selected The units for anaesthesia instruments come with their own instructions for use Applicat...

Страница 27: ... that are stored for longer than 4 hours prior to processing must be filled with water to prevent food residues from drying on the surface If no sterilization will occur after washing germ growth will need to be inhibited during storage Because this requires thorough drying a sufficient amount of drying time must be selected The inserts for baby bottles and nipples come with their own instructions...

Страница 28: ...nly be cleaned and disinfected in a washer disinfector that has been installed for that purpose The following baskets can be used O 167 for shoe sizes up to 40 O 173 for shoe sizes up to 41 U 168 1 for shoe sizes up to 45 Alternatively you can use E 484 inserts with hangers for shoes E 487 or for soles E 489 in a suitable underbasket e g U 874 1 When OR shoes are cleaned large quantities of lint c...

Страница 29: ...Empty all glassware before loading into the machine Comply with all applicable infection control regulations Ensure that no acid or solvent residues especially hydrochloric acid or chlorides get inside the machine Remove all agar residue from Petri dishes Remove all blood residue and clots from test tubes Remove all stoppers corks labels sealing wax residue etc Small parts such as stoppers and plu...

Страница 30: ...ated Find and correct the cause of the foaming The process must be checked regularly in order to detect any foaming See also the information on connected processing chemicals dirt and reactions between processing chemicals and dirt Corrosion in the stainless steel of the washing compartment and accessories has various appearances rust formation red spots stains black spots stains white spots stain...

Страница 31: ...ts of the machine and its accessories Use only those processing chemicals recommended by Miele Technical Service or a Miele Application Specialist Perform regular visual inspections of all accessible elastomer and plastic components The following oxidizing processing chemicals can damage the elastomer components hoses and seals and the plastic components of the machine nitric acid peracetic acid p...

Страница 32: ...rocess creates little or no foam Observe the instructions of the manufacturer of the processing chemicals Antifoaming agents particularly silicone based antifoaming agents can cause the following deposits in the wash compartment deposits on the wash load damage to the elastomer and plastic components of the machine attack certain plastics e g polycarbonates plexiglass etc in the wash load Use anti...

Страница 33: ...ts such as disinfection agents rinsing agents etc reagents for analysis e g for microtitration plates cosmetics hygiene and skin care products such as shampoos and creams analysis and filling departments foaming substances in general for instance tensides First rinse the load with a sufficient quantity of water Select a wash program with one or more short pre rinses with cold or warm water Taking ...

Страница 34: ... add an antifoaming agent one without silicone oils if possible In combination with alkaline processing chemicals loads with soiling that contains proteins e g blood can cause excessive foaming Select a wash program with one or more short pre rinses with cold water In combination with very acidic or alkaline processing chemicals base metals such as aluminum magnesium and zinc can release hydrogen ...

Страница 35: ...icals are dispensed through these systems Prepare the dispensing system The liquid processing chemicals can be loaded into 5 l plastic containers which are colour coded to match the respective dispensing system s When used for the first time or if the message FILL DOS 1 CONTAINER and or DOS 2 3 4 is flashing in the display after switching on or at the end of a program you will need to fill the con...

Страница 36: ...g and screw it into place Double check the color coding Once the containers have been filled the message clears from the display If the message FILL DOS 1 2 3 or 4 appears in the display top up the levels This will keep the containers from going completely dry If a given container is not required you can disable the status query for the dispensing system that is not being used and no fault message...

Страница 37: ...tion B open program selection Press the Start 6 button The service programs DOS FILL are factory pre set to program slots 58 61 but can be shifted to other program slots Servicing the dispensing system To keep the appliance functioning properly routine maintenance will need to be performed This work should only be performed by Miele Customer Service Every 12 to 18 months Replace the dispensing lin...

Страница 38: ...ee Programming manual To change the operating level Press 1 and 2 simultaneously The display will show the operating levels A B C D Use 1 or 2 to change the operating level Press the Start button 6 to confirm the selected operating level You will be prompted to enter a code The factory pre set coding is ü0000 To do so Press the Start button 6 You will see 0000 Enter digits with 4 and 3 Select digi...

Страница 39: ...the program selector Press the Start button 6 B Free program selection Select operating level B In operating level B you have three possibilities for program selection 1 Program slots 1 23 can be selected using the program selector Turn the program selector to the desired program number The program name appears in the display 2 Programs 24 and above are accessible via 4 and 3 Turn the program sele...

Страница 40: ...ow the programs for mobile units with automatic recognition AWK fixed program slots to be used interchangeably Press the Start button 6 Program sequence Once started the program proceeds automatically The program is done when the display shows PROGRAM END and the background lighting flashes press any button to stop the flashing For general information on switching off the flashing signal see the s...

Страница 41: ... or D Press the Stop 7 button to interrupt a program The display will ask CANCEL OR üCONTINUE In cases involving mandatory decontamination disinfectant must be added to the contaminated water before it can be released into the public water system The door can be opened for this purpose Use the cursor button 1 to select CANCEL The cursors ü will flash Press the Start button 6 The program is cancell...

Страница 42: ...ls B or D Press the Stop 7 button to interrupt a program The display will ask CANCEL OR üCONTINUE Open the door Caution Items inside the machine may be hot There is the danger of burning or scalding In programs with thermochemical disinfection steam containing high levels of disinfectant can escape Arrange items securely Take all necessary infection control measures and wear gloves Close the door ...

Страница 43: ... printer or PC please note the following Only use an industry standard PC or printer When installing the machine take the dimensions of the printer PC into account For instructions on how to set the report printer functions refer to the section on PC Print functions in the Programming manual Various reports can be printed aProgram report bOptional extras report cWash protocol report dFault protoco...

Страница 44: ...trothermal measurement seal testing all safety related measurement systems fault report Process validation It is the responsibility of the operator to routinely check that the required cleaning and disinfection processes are functioning properly In some countries this is also required by national legislation regulations or recommendations Operators are also required to conduct such checks under th...

Страница 45: ...pected on a daily basis and cleaned as needed The washer disinfector must NOT be operated without the filters in place Caution danger of injury from sharp objects such as glass shards needles etc Cleaning the coarse filter Squeeze the two tabs together then remove and clean the coarse filter Put the clean filter back into position and press until it clicks into place Caring for the appliance 45 ...

Страница 46: ... the micro fine filter Unscrew the micro fine filter by grasping the two tabs and turning two times counter clockwise left Remove it together with the flat filter Clean the filters Re insert the filter combination in reverse order The flat filter must lie flat in the base of the wash cabinet Caring for the appliance 46 ...

Страница 47: ...rms as follows Remove the baskets Upper basket or mobile unit spray arm if applicable Loosen the ring nut on the spray arm and remove the arm Metal nuts are threaded left Ceramic nuts are threaded right Unscrew the upper spray arm After loosening the ring nut remove the lower spray arm After cleaning re insert the spray arms and tighten down as needed After replacing the spray arms check to make s...

Страница 48: ...ainless steel cleaner To help prevent re soiling fingerprints etc a stainless steel conditioner can be used after cleaning Do NOT use thinner or ammonium based cleaners They can damage the surface NEVER hose down the washer disinfector or the immediate vicinity e g with a water hose or pressure washer Cleaning the wash cabinet The wash cabinet is mostly self cleaning If you notice a build up of de...

Страница 49: ...nections working properly Are all spray jets spray sleeves and hose adapters securely attached to the mobile unit insert Are all spray jets spray sleeves and hose adapters unclogged so that wash water can flow through Are all caps covers and fasteners securely attached to the spray sleeves If applicable Do the spray arms rotate freely Are the spray jets clogged See the section on Cleaning and care...

Страница 50: ...drawer to the control box Remove the filter screen from the drying unit Change the coarse filter The soft side of the filter must face the front Re insert the metal screen at the bottom then press it into place at the top Close the control box drawer Whenever you replace the coarse filter you should also re set the counter To do so Select the CHANGE TA COARSE program Press the Start 6 button When ...

Страница 51: ...l box Unscrew the upper screws on the coarse filter housing and lift upward Remove the coarse filter housing Remove the old HEPA filter and insert a new one Re insert the coarse filter housing and flip the screws downward Tighten the screws Close the control box drawer Whenever you replace the HEPA filter you should also re set the counter To do so Select the CHANGE TA FINE program see Operation o...

Страница 52: ...ts or if the filters in the wash cabinet are blocked If you see the fault message Check heater the water in the wash cabinet doesn t get hot the program sequence lasts too long take the following steps Remove the underlying cause Open the service flap Press the re set button for the ther mostat on the right side of the plinth base If the thermostat is triggered again please contact Miele Technical...

Страница 53: ...water To clean the filter Disconnect from the power supply Turn off the water supply and unscrew the water inlet hose Clean the large flat filter 1 and fine filter 2 and replace with new filters if needed Put the filter and seal back into place and make sure they are sitting correctly Reconnect the water inlet valve to the water valve making sure it goes on straight Slightly open the water tap If ...

Страница 54: ...rom the wash cabinet Flip the fastening clamp to the side Pull the non return valve up and out and rinse it under running water The drain pump is located beneath the non return valve see arrow Before putting the non return valve back into place check that the drain pump is not blocked Carefully put the non return valve back into place and close the fastening clamp For safety reasons the load shoul...

Страница 55: ...e the Messages section in the Programming manual for an overview of the various fault messages that can appear in the display If a fault occurs and cannot be corrected using the Operating instructions and Programming manual please contact Miele Customer Service When contacting the service department you will need to quote the model and serial number of your appliance This information can be found ...

Страница 56: ...installed in a space next to other appliances or furniture or in a suitable space The space must be at least 90 cm wide and 70 cm deep only when the appliance is covered by a lid Under a countertop The washer disinfector should be installed under a continuous countertop or the run off board of a sink The space must be at least 90 cm wide 70 cm deep and 85 cm high Depending on your requirements for...

Страница 57: ...op once it is in the proper position While the door is open screw the washer disinfector to the countertop through the left and right holes in the front trim Do NOT use silicone sealant to seal the gaps between the washer disinfector and any neighbouring units or cabinetry because this would hinder ventilation to the circulation pump Installation 57 ...

Страница 58: ...g diagram and data plate are located on the rear of the machine and on the plinth behind the service panel The wiring diagram is supplied with the machine See the supplied installation diagram Contact Miele Technical Service for more information A damaged power cord must only be replaced with a genuine Miele cord by a Miele service technician WARNING THIS APPLIANCE MUST BE GROUNDED Remove the serv...

Страница 59: ...of 158 F 70 C Connect the water intake hoses to the cold and hot water faucets The steam condenser inlet hose without waterproof connector should be connected to the cold water supply using the adapter supplied If no hot water supply is available the hot water inlet hose marked red should also be connected to a cold water supply by a y adapter For a DI water connection H2O pure see next page Water...

Страница 60: ...d to the on site water valve for DI purified water If the machine will not be connected to DI water the cleaning and disinfection programs must be changed by Miele Technical Ser vice The intake hose stays at the rear of the machine DI water connection pressureless 1 25 9 psi optional For connection to 1 25 9 psi water pressure the machine must be converted if it was not ordered from the factory as...

Страница 61: ...ft 1 m above the lower edge of the machine If it is lower than 1 ft 0 3 m lay the hose in a curve at a height of at least 1 ft 0 3 m The drainage system must be able to take a minimum drainage flow of 16 l min The drain hose is approx 5 ft 1 5 m long is flexible and has an internal diameter of 7 8 in 22 mm It must not be shortened Hose clamps are supplied for securing it in position A longer drain...

Страница 62: ... bar Drain height min 0 3 m max 1 m steam condenser approx 2 4 l min Room temperature 5 C to 40 C Relative humidity maximum linear decreasing to 80 for temperatures up to 31 C 50 for temperatures up to 40 C Altitude above sea level up to 1500 m Contamination level P2 as per IEC EN 61010 1 Ingress protection rating as per IEC 60529 IP20 ingress of dust Noise level in dB A peak LpA for cleaning and ...

Страница 63: ... to health and the environment This is why it is important NEVER to dispose of your old appliance in the regular household garbage Instead please contact your local community waste collection point to return and recycle electric and electronic appliances Your dealer should be able to provide you with details If the appliance is being stored for disposal please make sure it has been child proofed D...

Страница 64: ...M Nr 07 776 530 00 0366 Subject to change without notice Creation date 19 02 2010 ...

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