User`s Manual - Wassermann Dental
Contents
1. em 25 9 3 gt aces eet alt ouod eL AID T PR LN eR A E 26 9 4 COOLING SYSTEM eee Ianua ne 26 WASSERMANN DENTAL MASCHINEN 1 1 Product description Electronic scales with control system of 1 to 6 liquid pumps Depending on whether plaster or embedding powder is being weighed on the scales this unit can at the press of a button accurately reproduce up to 30 previously defined quantities This feature derives from the fact that up to 6 liquids can be dosed in sequence with a very high level of accuracy The DSW 2 4K dosing center is especially suitable for this purpose This patented product also allows you to cool liquids to temperatures recommended by the embedding mixture manufacture The unit delivers the same degree of precision over the long term yet pays for itself very quickly 1 2 Product design The DSW 2 dosing scales contains the following components Scales Controller Dosing housing with 1 to 6 pumps cooling unit depending on configuration Rubber plugs to seal hose ends Options Printer interface cable with transformer and paper roll The DSW 2 or DSW 2 4K has a separate connector for the printer or computer Pumps 1 to 6 A to F are located in a housing and are interchangeable WASSERMANN DENTAL MASCHINEN 1 3 Mathematical basis for control and programming Dosing control is based on the following formula Gges2. 1 If the above suggestions do not work please contact your dental depot or our Service Department 8 Maintenance 8 1 Cleaning Clean the equipment at regular intervals to ensure trouble free operation you need is a sponge damp cloth and mild detergent Do not use chemical additives The model plate must always be clearly legible and should not be removed The ends of the hoses used to supply embedding material concentrate should be cleared regularly of crystallized material Remember to clean the rubber plugs used to seal the hose ends Avoid skin contact with concentrates Follow the manufacturer s A guidelines N Never blow compressed air through hoses If the unit is not to be used for an extended period seal the concentrate hose ends with the rubber plugs WASSERMANN DENTAL MASCHINEN 8 2 Servicing The mechanical and electrical components of our dosing scales do not need maintenance Check the condition of the hoses on a regular basis Hardened dirty or severely discolored hoses can be replaced by service personnel in a few minutes Make sure that the unit is kept clean 8 3 Warranty The warranty period for our equipment is 12 months If your equipment exhibits faults during this warranty period please contact your dental depot or get in touch directly with our Service Department Dosing scales can only be operated if they are in perfect technical condition If fau
3. MX yo ys Equation 1 where Gges Total quantity in g of all weighed amounts of different materials GY Weight component of eg plaster powder or similar material Quantity in ml 100g of liquid to be dosed from any selected pump Hn Y3 Density in g cm or g ml of particular material liquid 2 For your safety 2 1 Read the user s manual The operation and handling of this product require close knowledge and observance of these operating instructions The product is intended only for the purpose described These operating instructions contain the following very important symbols Warning This symbol indicates risks and dangers Ignoring this warning can lead to life threatening situations You must observe these warnings i Information This symbol indicates important features or facts WASSERMANN DENTAL MASCHINEN 2 2 Safety instructions When dosing use only liquids recommended for mixing embedding materials and plasters for dental applications Do not use petrol oil or acids solvents or flammable substances Concentrated embedding materials can damage your health Read the manufacturer s data sheets carefully This equipment is designed for 115V 60Hz Check that it is always connected to the correct mains voltage Always disconnect the power before undertaking maintenance or cleaning work Never blow compressed air through the hoses
4. 2 3 Responsibility for operation and damage The owner or operator is always responsible for the equipment if it is incorrectly serviced maintained or altered by persons not associated with an approved workshop or if it is operated in a manner which is not in accordance with its intended application The equipment must be maintained and operated in accordance with these operating instructions Wassermann Dental Maschinen GmbH is not responsible for damage caused by non observance of these instructions The warranty and responsibility conditions of Wassermann Dental Maschinen GmbH for sales and supply are not extended by the present instructions Li Ensure that the user s manual is on hand at all times and has been read and understood WASSERMANN DENTAL MASCHINEN 3 Applications The DSW 2 dosing scales allow you to mix embedding materials and plasters with consistent accuracy If you have a printer you can document your dosing procedures or program parameters 4 Before you start 4 1 Unpacking Transport Remove the packing materials and place the unit on a stable level base Check that any accessories are present see 8 4 When transporting the unit use suitable packing materials in order to avoid damage in transit 4 2 Set up Storage Choose a location for the scales and container where they are protected from direct sunlight or other sources of warmth such as heaters Set the u
5. 1 2g cm 3 66 15 ml 1 2 g cm 3 66 15ml 1 2 g ml we must now add an extra 79 38g Of the dilutant distilled water 315g 9ml 100g 1 0g ml we must now add an extra 28 71g The technician transfers the powder into the liquid and it s finished 6 3 Rinsing filling emptying If the pumps will remain unused for an extended period such as during holidays or when the medium is being changed the entire dosing system will need to be cleaned This is done by connecting a particular pump to the container filled with tap water or rinsing liquid N Never blow compressed air through the hoses WASSERMANN iia DENTAL MASCHINEN 6 3 1 Filling rinsing emptying the pump system Squeeze off the tube end briefly during flushing to remove air bubbles from the system There should be no more air bubbles present when the tube end is released This procedure can be repeated as often as you like Screw the cover with the suction hose of the pump system to be filled or rinsed to the container holding the water rinsing liquid Remember to turn only the container to avoid twisting the hose Place a suitable container under the dosing hose If necessary set the hose to the correct height There are 4 switches at the rear of the pump housing on the DSW 2K These are used to set the feed direction Press S SET P appears on the display and the READY light goes out Press one of the six buttons assigned to the pumps A
6. 1 2 g cm 1 2 g ml He enters 1 2 He then presses ENTER Set P appears on the display He presses D because the distilled water dilutant will be dispensed from that pump He then uses the numeric keypad to specify the quantity in ml 100g of powder of the second liquid to be weighed in this case the quantity of dilutant So he enters 9 This value appears immediately on the display without indicating the unit He next presses ENTER Since the technician knows that the density of the water is approx 1 g cm 19 he presses ENTER again or 1 because the density of 1 is stored asa standard value He presses ENTER again to end the program and store the data under program number 30 He now places two empty mixing beakers on the scales and presses TARE Then he takes a small spatula and transfers the approximate quantity of powder from the 5kg container to one of the beakers The scales display reads 2819 This is too little powder so he adds the rest The display now reads 315g WASSERMANN DENTAL MASCHINEN The technician presses START Pr nr appears on the display and the READY light goes out uses the numeric keypad to specify the program number and enters 30 He then presses ENTER Dosing starts and the READY light goes out The scales calculate the weight of the dosing liquids Of the concentrate powder weight g concentration ml 100g powder density g cm g ml 3159 21ml 100g
7. container to avoid twisting the hose The hoses are now filled by flushing see 6 3 Make sure there are no air bubbles in the dosing hose f a pump has been loaded with embedding material but you do not want to dose immediately seal the hose end with the rubber plug provided WASSERMANN DENTAL MASCHINEN Make sure that the safety packing has been removed before you start the unit the dosing system to the mains The scales should be level clean and free of any unwanted loads When you turn on the power autotest characters C1 to C6 appear on the display followed by the character or number of the program then 0 to indicate the scales have been tared You can now weigh dose rinse or program i The scales must always be horizontal 6 Operation 1 recommendations for using the equipment whether verbal written or in the form of practical examples are based on our own experience and tests and can only be considered as guidelines WASSERMANN DENTAL MASCHINEN 6 1 Programing 1 Turn on the power The READY light comes on 2 Press P Pr nr appears on the display and the READY light goes out 3 Use the numeric keypad to enter the program number If you choose 0 or a number greater than 30 and press ENTER the characters Err P appear on the display followed by Pr nr 4 Press ENTER Set P appears on the display 5 Press A B C D Eor F to select the pump for
8. 5 3 APPLICATIONS eet ete A ee ee AL 6 4 BEFORE YOU S TART oye seco cone 6 4 1 UNPACKING TRANSPORT 6 4 2 SETI UP7 STORAGE tad EE ri ee v En Ee E EDS 6 NER PEE 8 EEG 2 huele 8 6 1 PBROGRAMING 355 3 ela su eol dtes d AL e dudo ud A eid LU 9 6 2 CALCULATING DOSING QUANTITIES PER PUMP 11 6 3 RINSING FILLING rre rre 14 6 4 PRINTING MEASURING RESULTS 16 6 5 DOSING sos te Sata teeta dA teer lee cca cnn e eA co blend E 18 6 6 ei 19 6 7 TIPS AND TRICKS D nca e rA EE 20 T TROUBLESHOOTING etra ro erra on Eo na cuin ba REEE 20 8 MAINTENANCE 1 0 4 602x202 cca x co Cra ase 21 8 1 GLEANN G zn alc uiui un uc 21 8 2 SERVICING 22 8 3 RT 22 8 4 SPARE PARTS AND ACCESSORIES 2 Bee 22 8 5 23 8 6 REPAIRING THE trier renis 23 9 TECHNICAL 25 9 1 WEIGHING SY STEN eee C ov e ER cv c ove Cae Eo eve D P de E gx 25 9 2 BI oc
9. B C D E or F P n appears on the display n the letter of the selected pump Press START Rinsing begins and the V symbol corresponding to that pump lights up The rinsing process for cleaning the circuit should last for approx 30seconds Once the rinsing is finished the END light comes on You can continue by pressing ENTER The READY light comes on and END goes out If the liquid circuit does not fill completely there are air bubbles at the hose opening You will need to repeat the rinsing process Press CLR The letters Clr appear on the display The rinsing process can be interrupted immediately You can continue after pressing ENTER The READY light comes on 1 Rinsing can be stopped at any time by pressing CLR 1 Before changing a medium check that the circuit has been rinsed clean WASSERMANN dius DENTAL MASCHINEN i If you have changed the feed direction remember that the switch must be returned to the correct position for dosing i Make sure that there is as little air as possible in the feeder circuit This is especially important with the DSW 2 4K as it can reduce pump performance 6 4 Printing measuring results Printing is not possible Ifthe printer is not plugged in the symbol appears after you press F1 during dosing or programming the symbol appears after you press F1 Printing is possible only if lights END or READY are on or if neither is on i If
10. User s Manual DSW 2 DSW 2 4K dosing scales annn H bes DSW 2 4K dosing center C WASSERMANN DENTAL MASCHINEN GMBH WASSERMANN DENTAL MASCHINEN Dear customer Thank you for choosing a model from the Wassermann product range Wassermann dental equipment represents the highest quality and the latest technology To get the best performance from your equipment and to guarantee years of troublefree use please read this user s manual carefully before starting the unit and operate it according to instructions Keep your user s manual in a safe place so you can refer to it as needed Company address Wassermann Dental Maschinen GmbH Rudorffweg 15 17 D 21031 Hamburg Germany Tel 49 0 40 730 926 0 Fax 49 0 40 7303724 email info wassermann dental com URL http www wassermann dental com WASSERMANN DENTAL MASCHINEN lee nme EE 2 1 FEATURES UE 3 1 1 PRODUGTIDESCRIPTION ie pte ete eee toro e e tent t hte etes et 3 1 2 PRODUCT DESIGN d die ctt dedii obe e dedii ta a cene 3 1 3 MATHEMATICAL BASIS FOR CONTROL AND PROGRAMMING 4 2 FOR YOUR SAFETY nua aui 4 2 1 READ THE USER S MANUAL soe aed ace ae de cete e eate ate 4 2 2 SAFETY INSTRUCTIONS testes Ra or ar ett 5 2 3 RESPONSIBILITY FOR OPERATION AND
11. a en caso de realizar modificaciones al aparato sin nuestra aprobaci n Hiermee wordt bevestigd dat bovengenoemde machine voldoet aan de voorgeschreven EU normen Deze verklaring verliest geldigheid als er zonder onze uitdrukkelijke toestemming wijzigen aan de machine worden aangebracht Place date Hamburg 10 2003 Company stamp n Wide Ye ilfried Wassermann Managing Director WASSERMANN ids DENTAL MASCHINEN Short Instruction for Programming Start of the Program PR NR appears on the display Choose a program number 1 to on the numeric keypad Set P appears on the A ON ENTER display Press A to F to select a to F pump P X appears the display Please use the numeric keypad to enter the quantity of liquid ml 100g powder PR X appears on the ENTER display Please indicate the density ENTER or 1 XX or confirm with ENTER the density of 1 Set P appears on the ENTER display You can store the program when pressing ENTER or ENTER you can go further in programming starting with point 4 again Instruction to Start a Program Start of the program START PR NR appears on the display o NO Choose a program number on the numeric keypad To confirm the program no ENTER E Ha WASSERMANN DENTAL MASCHINEN 29 Pr No Manufacturer Productname Conce
12. e solution No weight shown on Transport packing not Remove transport packing display removed Err H displayed Maximum weight Remove powder from exceeded mixing beaker and repeat dosing process Err L displayed Under minimum weight or Add more powder to beaker dosing quantity too small and repeat dosing process No response from keys P END light is on process is Press ENTER and start S and START finished or was stopped process again Pump works but feeds Dirty hose Clean hose and or remove nothing or too little Pinched hose contamination Check hose line and liquid level in Container empty container Suction hose length in container too short Pump does not respond Pump faulty Check pump or contact our Service Department Unscrew unit at rear p lippi demount pump head roughen shaft surface see 8 6 Wrong medium supplied Wrong lid and or Check container and container program If necessary print Wrong material in out program parameters container Error in program Pump blocked Pump not plugged in WASSERMANN wee DENTAL MASCHINEN Error fault likely cause possible solution pwamtes Printer does not respond Not plugged in Check cables and or switch Connecting cable not Printer on Try printing attached or loose agam Printer not switched on Printer responds but no paper incorrect paper Load with original paper output Follow instructions in manual
13. ge calibrated beaker on the scales and press TARE A 0 will appear on the display Fill the beaker to the 1000ml mark with concentrate Carefully note the weight Then simply divide the value shown by 1000 to get the density in g cm or g ml If the volume of concentrate is less than 1000ml divide the weight of the concentrate shown on the scales by the volume of concentrate to obtain the density If you do not have a large beaker carry out several say 5 measurements with a smaller beaker then calculate the average value 6 2 2 Example of calculating embedding materials Manufacturers of embedding materials powders specify concentrate quantities in Xml to Yg which generally translates to Xml liquid to 100g powder This relies on the fact that embedding materials are sold mostly in small bags eg 100g You will find that this is much more expensive than buying a 5kg container of the material The bags of powder come with a measuring beaker for measuring the concentrate 1st liquid The concentrate can also be diluted with distilled water WASSERMANN m DENTAL MASCHINEN Say a manufacturer of embedding material states 30 ml total liquid per 100g powder yields enough mixture for 1 2 molds Possible dilution of concentrate 10 50 depending on expansion percentage figure refers to the volume or quantity in ml of liquid The laboratory technician has the task of mixing enough embedding material for 3 molds models and wa
14. lectronic cooling unit Temperature ranges 17 19 and 21 Celsius Tolerance at measuring point 0 3 Celsius Tolerance of entire cooling system 1 Celsius No cooling chambers 4 Cooling volume per chamber approx 125ml Cooling power 28 W WASSERMANN ee DENTAL MASCHINEN 10 EG CONFORMITY CERTIFICATE gas per 73 23 EWG Low voltage guidelines modified by 93 68 EWG and 89 336 EWG guidelines and 89 392 EWG Machine guidelines with modifications Manufactur WASSERMANN Product description Dosing scales for er Dental Maschinen GmbH dental applications Rudorffweg 15 17 D 21031 Hamburg Machine model DSW 2 with one pump 172985 DSW 2 4K with four pumps 172986 Applicable standards 61010 1 1993 A2 1995 EN 50081 1 EN 50082 1 DIN 45635 Pt 1 Hiermit wird bestatigt dass die oben bezeichnete Maschine den genannten EG Richtlinien entspricht Diese Erkl rung wird ung ltig falls die Maschine ohne unsere Zustimmung ver ndert wird This is to confirm that the above mentioned machine complies with the described EC rules This declaration becomes invalid if the machine is modified without our approval Cette machine est conforme aux normes en vigueur de la Communit Europ ene Cet avis est nul et non avenant si cette machine est modifi e sans notre accord Esta m quina anteriormente mencionada cumple con los limites requeridos por el reglamento EC Ahora bien esta declaraci n quedar invalidad
15. lts do occur which could injure technicians or third parties the equipment should not be used until it has been fixed Damage caused by improper use external mechanical influences transport damage or the equipment being opened by unauthorized persons is not covered by this warranty 8 4 Spare parts and accessories tem no 320032 on request 291030 Spare roll heat sensitive paper WASSERMANN dads DENTAL MASCHINEN 8 5 Repairs Servicing or repairs to the equipment should be carried out only by qualified personnel Only original parts are to be used as replacements Product responsibility lapses is the equipment is altered by unauthorized persons and by the installation of non standard components 8 6 Repairing the pump Turn the unit off and pull the plug out of the mains socket 1 Undo the four screws at the rear so you can see the pump arrangement 2 You can remove the pump head from the pump motor without taking the head apart if you press the right and left clamps in at the same time Clamp Pump motor Pump head Clamp 3 Rub a piece of 180 240 grit abrasive paper up and down the pump motor shaft several times see steps 1 3 Step 1 Step 2 Step 3 24 WASSERMANN DENTAL MASCHINEN 4 Remount the pump head on the motor and check that it works correctly 5 If the pump still does not deliver demount the pump head by pressing in both clamps see pic Pump head housing Feed r
16. nit up on a level horizontal surface Make sure you have adequate space in your work area take dimensions into account Do not set the unit up out of doors f the unit is to be stored for an extended period protect it from moisture and dusty Follow the procedure below to remove the securing piece from the scales before you start work WASSERMANN DENTAL MASCHINEN 1 Remove the stainless steel pan from the scales 2 Remove the safety packing between the pan and the housing 3 Replace the pan 4 f you have a printer connect it to the controller Connect the printer to the network and insert the plug in the socket i All plugs can only be inserted in one orientation The DSW 2 dosing scales must be at room temperature before you use it i Screw in all connectors Select the appropriate quantities of the individual liquids If using containers without a 6 5mm hole unscrew the cover Use a tool such as a drill press and a conventional drill bit to make a 6 5mm hole in the center of the container lid f the density of the media is known if not see 6 2 1 fill the containers with the relevant liquids then seal the containers Mark each container and its lid with the letter of the dosing pump The sticker Fig 2 on the rear or top of the housing indicates which hose belongs to which pump E Fig 1 Pump outlets lij When removing or replacing a lid hold the lid firmly and turn the
17. no dosing has occurred the subsequent parameters or zero values are printed You start printing by pressing F1 If all conditions have been met PRINT appears on the display During data transmission the light near F1 comes on WASSERMANN DENTAL MASCHINEN 6 4 1 Printout of measuring results The printout looks like this PRODUKT PRODUCT HERSTELLER MANUFACTURER PROGRAM NR PROGRAM NO 1 30 ANTEIL SHARE LIQUID 1 prog value ml 1009 LIQUID 1 prog value g cm ANTEIL SHARE LIQUID 2 prog value ml 100g LIQUID 2 prog value g cm ANTEIL SHARE LIQUID 3 prog value ml 100g LIQUID 3 prog value g cm MESSERGEBNISE MEASURING RESULTS PULVER POWDER actual value g LIQUID 1 actual value ml actual value g nom value ml LIQUID 2 actual value ml actual value g nom value ml LIQUID 3 actual value ml actual value g nom value ml DATUM DATE UNTERSCHRIFT SIGNATURE WASSERMANN s DENTAL MASCHINEN 6 5 Dosing 1 The liquid amounts and densities are known 2 Place two mixing beakers on the scales and press TARE li If no 0 is displayed press TARE again 3 Transfer the desired amount of powder into a mixing beaker 9 If the READY light does not come on press ENTER The READY light will come on Press START Pr nr appears on the display and the READY light goes out Use the numeric keypad to enter the
18. ntrate Dilution Pump ml 100g Density Pump ml 100g Density Remarks
19. nts to dilute the concentrate by 30 He sees that there is no program so far for this dilution but program number 30 has not been used Now the technician calculates the quantity of concentrate liquid 1 and the dilutant liquid 2 It is important for all figures to relate to 100g powder Concentration mix quantity quantity mixing liquid ml 100g quantity concentrate 30 ml 100g 70 100 21 ml 100g Dilutant quantity quantity mixing liquid ml 100g total dilutant of total liquid 30 ml 100g 30 100 9 ml 100g The scales are now programmed for this concentration He presses P Pr nr appears on the display and the READY light goes out He enters 30 He presses ENTER Set P appears on the display He presses A because that is the pump which will dispense the concentrate WASSERMANN im DENTAL MASCHINEN from the powder manufacturer P A appears on the display as well as o to indicate the programming option He then uses the numeric keypad to specify the quantity in ml 100g powder of the first liquid to be weighed in this case the amount of concentrate He enters 21 The value entered appears immediately on the display without indicating the unit He presses ENTER P A appears on the display The technician knows the density of the concentrate from the manufacturer s data the density of the concentrate is generally provided by the manufacturer or by weighing Here we assume the density is
20. ollers Pump head cover Silicone tube Clamp 6 Check the silicone tube and feed rollers for residue If the residue cannot be removed a new pump is required 7 Also check the connections between the pump tube and PVC tube for blockages Warning The connections must be held in place with hose clamps Warning The pump must be built up grease free GG Wasserman 19 DENTAL MASCHINEN 9 Technical specifications 9 1 WEIGHING SYSTEM Min start weight approx 5g Min dosing amount approx 2g Max dosing amount in Z6 1000 Start weight Max dosable in 96 Min dosable in 9 1000 100 10 1000 50 20 1000 25 50 1000 10 100 1000 5 200 1000 3 500 1000 1 5 gt 1000 lt 500 at 60000 1 Fig 4 Weighing table 1 We reserve the right to make technical changes 9 2 DSW 2 Voltage 115V 60 Hz Consumption 0 6A 75W Weighing range max 6000g Weighing accuracy 29 d 0 5g Overall size B 220 x H 470 x D 400 mm Weight 15 Kg Operational 5 35 temperature range WASSERMANN DENTAL MASCHINEN 9 3 DSW 2 4K Voltage 115 V 60 Hz Consumption Output Weighing range max 6000g Weighing 29 0 59 Overall size 220 x H 470 x D 4000 mm Weight 17 5 Kg Operational 5 35 temperature range Dosing scales noise level x70 dB A 9 4 Cooling system Microprocessor controlled e
21. ou can press CLR at any time durifng programming to change incorrect data eg pump number or density in the current program If CLR is pressed again the program is stopped When you press CLR the letters CLR appear on the display and lights READY and END go out You now press ENTER to continue working 6 1 2 Printing program parameters 1 Make sure that the printer is correctly installed and is switched on Press P to print program parameters Pr nr appears on the display and the READY light goes out Use the numeric keypad to select specify the program number then press ENTER SET P appears on the display Press F1 PRINT appears on the display and the parameters and pump activation sequence are printed out Example of a printout of a program using two pumps PROGRAMM NR PROGRAM NO X ANTEIL SHARE LIQUID 1 40 ml 100g LIQUID 1 1 22000 g cm ANTEIL SHARE LIQUID 2 5 ml 100g LIQUID 2 1 00000 g cm PUMPEN PUMPS Fig 2 Printout of program parameters WASSERMANN a DENTAL MASCHINEN 6 2 Calculating dosing quantities per pump Generally speaking all dosing quantity data ml relate to 100g powder Thus the dosing quantity in mI and the density in g cm or g ml should be known for each liquid 6 2 1 Determining the density of concentrates If the manufacturer does not indicate the density of the concentrate you can determine it yourself quite easily To do so place a lar
22. program number If you enter 0 or a number greater then 30 Err P then Pr nr appear on the display Press ENTER Dosing starts and the READY light goes out The program checks that the quantities do not exceed the maximum value If the maximum value is exceeded Err H appears on the display and dosing is stopped The program also checks that the amount of powder is greater than 5g If it is less Err L appears on the display and dosing does not start Another check is carried out to make sure the maximum dosing portion does not exceed 100095 of the powder amount Err H message and that the minimum dosing portion is greater than 2g if not message Err L To interrupt the process you press CLR then ENTER to continue 10 If no errors are detected the symbol V appears on the display to indicate which pump is working 11 The pump or pumps automatically dose s the predetermined quantity of liquid 12 When the next pump is switched on the display shows the V symbol of the pump which is working When dosing finishes the END light come on 13 After ENTER is pressed the dosing scales are ready to start again The READY light comes on and END goes out only to program level C2 08 WASSERMANN DENTAL MASCHINEN 6 5 1 Stopping the dosing process The dosing process can be stopped immediately by pressing CLR Clr appears on the display You press ENTER to reset the unit The READY light comes on 1 Do
23. sing can be stopped at anytime by pressing CLR 6 6 Using cooling Turn onthe green main switch on the side of the unit Select the temperature using the rocker switch at the side Temperatures 17519 and 21 Celsius are available The middle temperature 199 is usually recommended Wait for the green LED to flash This can take up to 45 minutes depending on the ambient temperature The liquid will then have reached the tolerance range of the set temperature Green light means minimum permissible temperature reached The cooling switches itself off automatically An occasional change between a steady and a blinking green light on the display does not indicate a fault Redlight means Warning cooling is faulty Switch off immediately You are recommended to switch the cooling unit on in good time timer or to have it on continuously Try working at a higher temperature this often yields better results WASSERMANN S DENTAL MASCHINEN 6 7 Tips and tricks f you are mixing large quantities add material by hand during the dosing process Take care however not to exceed the weight you want to weigh Stop if you hear the pump laboring before the nominal weight is reached Remember that some embedding materials can only be worked for a short time at temperatures above 25 Locate the dosing scales and the liquid container in a cool place 7 Troubleshooting Error fault likely cause possibl
24. the appropriate liquid 6 On model DSW 2 make sure that only one pump is installed A and that on model DSW 2k pumps A B C and D are active 7 P Aorthe letter of the relevant pump appear on the display with an o on the left to indicate the programming option 8 The program stores the identifier of the first pump to be switched on the sequence of pumps to be activated and the quantity assigned to each pump for dosing 9 You then use the numeric keypad to enter the quantity of liquid in ml 100g powder to be weighed 10 That value appears immediately on the display 11 Press ENTER Pr A or the identifier of another pump depending on the key pressed appears on the display 12 If you are not entering a liquid density for the selected pump press ENTER again A standard value y 1 is assumed 13 If the density of the liquid is to be specified that value should be entered using the numeric keypad The value entered appears on the display 14 Press ENTER 15 SET P appears again on the display 16 Repeat points 4 5 6 7 8 for the following pump s 17 End programming by pressing ENTER All ratios for mixing components and the order in which the pumps are to be activated remain stored in memory until new data are entered under that program number 18 The o disappears and the READY light comes on You can now weigh dose program or rinse WASSERMANN DENTAL MASCHINEN 6 1 1 Correcting incorrect input Y
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