25

INSTALLATION AND OPERATING INSTRUCTIONSDÜRR AMALGAM SEPARATOR AZ 50

1999/12

26

27

CONTENTCONTENTCONTENTCONTENTCONTENT

Important information1. Note ......................................................... 26

1.1 CE-marking ...................................... 261.2 General Information ......................... 261.3 Electromagnetic Compatibility ........ 261.4 General Safety Information .............. 261.5 Electric Safety Instructions .............. 261.6 Warning Information and Symbols .. 27

2. Product information .............................. 272.1 Use for the Intended Purpose ......... 272.2 Use other than that for the Intended

Purpose ........................................... 272.3 Product Description ......................... 27

3. Overview of models .............................. 284. Scope of delivery ................................... 28

4.1 Special Accessories ........................ 285. Technical Data ....................................... 296. Overview of functions ........................... 307. Functional description .......................... 31

7.1 Method of Functioning ..................... 317.2 Amalgam separation Separation ..... 317.3 Filling Level Measurement .............. 317.4 Equipment Failure ........................... 327.5 Service Button ................................. 32

Assembly8. Installation hints .................................... 33

8.1 Installation Room ............................. 338.2 Installation Site ................................ 338.3 Combination Facilities ..................... 348.4 Planning a Pressure Equalising Pipe or

Air Demixer ...................................... 348.5 Hose Material .................................. 348.6 Hose Laying .................................... 348.7 Odour Trap ...................................... 35

9. Installation of AZ 50 .............................. 359.1 Fixing the AZ 50 in Place ................ 359.2 Fixing the Pressure Equalising Pipe in

Place ................................................ 3510. Electrical connection ............................. 36

10.1 Mains Connection via Earthing-Contact Type Socket ....................... 36

10.2 Fixed Mains Connection .................. 3610.3 Electrical Connection in AZ 50 ........ 3610.4 Display Module ................................ 37

11. Putting into operation ........................... 3711.1 Functional Check ............................. 3711.2 Visual Check ................................... 3711.3 Service Button ................................. 3711.4 Emergency Program ....................... 37

12. Tips for tracing faults ............................ 38

13. Service-Programm ................................ 40Functional sequence ........................... 4113.1 Start ................................................. 4113.2 Indicator Test .................................. 4113.3 Safety Switch .................................. 4113.4 Motor Running and Braking Action 4113.5 Sediment Scanning ........................ 4113.6 Output Signals ................................ 4113.7 Stop ................................................. 41

14. Transport of the AZ 50 ........................ 42

Use15. Operation ................................................ 43

15.1 Ready for Operation State ............... 4315.2 Amalgam Collecting Vessel

95% full ............................................ 4315.3 Amalgam Collecting Vessel

100% full .......................................... 4315.4 Fault ................................................. 44

16. Cleaning and disinfection ..................... 4417. Replacing the amalgam

collecting vessel .................................... 4417.1 BEFORE replacing the amalgam

collecting vessel, please observe thefollowing: .......................................... 44

17.2 Replacement of Amalgam CollectingVessel .............................................. 44

17.3 Disposal of Amalgam CollectingVessel .............................................. 44

18. Maintenance ........................................... 4518.1 Annual Testing of Indicators on

Display Module ................................ 4518.2 Testing for Proper Working Order -

Every 5 Years ................................... 4618.3 Inspection of the Centrifugal Pump -

Every 2 Years ................................... 4619. Disposal of the machine ....................... 46

Spare partsAZ 50 ....................................................... 48-49

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IMPORTANT INFORMATION

1. NOTE1.1 CE-marking•CE-marking in accordance with theMachinery Directives.•The product bears the CE-markingin accordance with the directive governingMachinery Directives 89/392/EWG andconforms to the basic requirements of thatDirective.

1.2 General Information• The Installation and Operating Instructions

form an integral part of the machine. Theymust be kept close to the machine and inreadiness whenever required. Preciseobservance of these instructions is a priorcondition for use of the machine for theintended purpose and for its correctoperation.

• Safety for the operator as well as trouble-free operation of the machine are onlyensured if use is made of original equipmentparts. Moreover, use may only be made ofthose accessories that are specified in thetechnical documentation or that have beenexpressly approved and released by DürrDental for the intended purpose.If and where use is made of accessories orconsumer supplies from outside sources,Dürr Dental are unable to assume anyguarantee for safe operation or safefunctioning.

• No warranty claims are accepted in respectof damage arising from the use ofaccessories or consumer supplies fromoutside sources.

• Dürr Dental only regard themselves asbeing responsible for the machinesregarding safety, reliability and properfunctioning if assembly, resettings, changesor modifications, extensions and repairshave been carried out by Dürr Dental or anagency authorised by Dürr Dental and if themachine is used in conformity with theInstallation and Operating Instructions.

• The Installation and Operating Instructionsconform to the relevant version of themachine and the underlying safetystandards valid at the time of going to press.All proprietary rights are reserved in respect

of the specified circuitry, methods, names,software programs and equipment.

• Any reprinting of the technicaldocumentation, in whole or in part, issubject to written prior approval of DürrDental.

1.3 Electromagnetic Compatibility EN 60601-1-2 and IEC 1000-4-3 EN Stan-dards governing ElectromagneticCompatibility - Medico-electrical Equipmentare fully complied with.

1.4 General Safety Information• Dispose of the packaging material in the

proper manner, and make sure that it is keptout of the reach of children.

• The product is classified as medico-technical equipment and may only be usedby such persons as can guarantee that theywill handle it properly on account of theirtraining and/or technical knowledge.

• Each time prior to using the machine theuser must check to ensure that it isfunctionally safe and in proper condition.

• The user must be familiar with how tooperate the machine.

• The product is not intended for use in areasof rooms employed for medical purposesthat are exposed to risk of explosion.Explosion hazards may result from the useof inflammable anaesthetics, skin cleansingagents, oxygen and skin disinfectants.Moreover the machine is only suitable to alimited extent for operation in a combustion-stimulating atmosphere.

1.5 Electric Safety Instructions• The AZ 50 must be connected up to a

properly installed earthing-contact typesocket. For fixed connections pleaseobserve points 9 and 10 of theseinstructions.

• Prior to connecting up the machine a checkmust be carried out to see whether themains voltage and mains frequencyspecified on the machine conform to thedata applicable to the supply mains.

• No extension cables or leads must be usedfor power supply purposes.

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• Prior to being put into operation, themachine and the lines need to be inspectedfor damage. Damaged lines, socket outletsand plugs must be replaced immediately.

• Never touch the patient and non-protectedsocket outlets or plugs of the machine at thesame time!

1.6 Warning Information and Symbols In the Installation and Operating Instructionsuse is made of the following terms or symbolsto denote data or information of specialimportance:

Angaben bzw. Ge- und Verbote zurInformation and/or mandatoryregulations or prohibitions for theprevention of personal injury orsubstantial property damage.

Warning of dangerous electricalvoltage.

Special information regarding theeconomical use of the machine andother information

Floating Application Part Type BF

CE Marking without Notified BodyNumber

Observe Instructions for Use

To protect operating personnelworking on the AZ 50, protectivegloves must be worn.

2. PRODUCT INFORMATION2.1 Use for the Intended PurposeThe function of the Dürr Amalgam Separator isto separate and intercept heavy metals andamalgam dust drawn off by dental suctionequipment in the form of fillings that havebeen drilled open.The amalgam separator is intended forinstallation of a maximum number of twotreatment units in dental surgeries or dentalclinics. Any other use or use beyond what isspecified is deemed to be not for the intendedpurpose. The manufacturer accepts no liability

for damage resulting therefrom. All risk isborne solely by the user. Use for the intended purpose includesobservance of the Installation and OperatingInstructions as well as the installation,operating and maintenance conditions.

The machine must not be used inoperating rooms.

2.2 Use other than that for theIntended Purpose

Any other use or use beyond what isspecified is deemed to be not for the intendedpurpose. The manufacturer accepts no liabilityfor damage resulting therefrom. All risk isborne solely by the user.

2.3 Product DescriptionAmong other substances, heavy metals andamalgam dust accumulate, drawn off bydental suction equipment in the form of fillingsthat have been drilled out. Biodegradation ofamalgam that has found its way into thewaste-water system is a difficult undertaking.To reduce contamination in waste watercaused by heavy metal stemming from dentaltreatment equipment, it is essential - incompliance with the General Sewage Admini-stration Regulations (Annex 50, DentalTreatment) in force in Germany - to installamalgam separators ahead of the dentalwaste-water drain furnished with a seal ofapproval issued by the German Institute ofStructural Engineering in Berlin.The AZ 50 Amalgam Separator has beendesigned by Dürr Dental to produce therequired separation efficiency factor of over 95%proceeding based on a rate of flow of 8 ltr./min.Amalgam slurry is intercepted in an amalgamcollecting vessel underneath the centrifugedrum. Depending on the volume accumulating,the amalgam collecting vessel needs replacingonce or twice a year.The AZ 50 withoutwithoutwithoutwithoutwithout Pump (Model 7112-01) isused in conjunction with a Dürr Suction UnitVS 300.The AZ 50 withwithwithwithwith Pump (Model 7112-02) isemployed in connection with water ring pumps.

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4. SCOPE OF DELIVERYAmalgam Separator AZ 50without Pump .....................................7112-01

Amalgam Separator .................... 7112-100-50

Pressure Equalising Pipe ............ 7112-101-00

Accessories, complete ............... 7112-001-00

Installation and OperatingInstructions AZ 50 .................. 9000-605-95/01

Instructions for Use - Disinfectionand Cleaning of Suction Systems 9000-605-10

Amalgam Separator AZ 50with Pump ..........................................7112-02

Amalgam Separator .................... 7112-100-51

Accessories, complete ............... 7112-001-00

Installation and OperatingInstructions AZ 50 .................. 9000-605-95/01

Instructions for Use - Disinfectionand Cleaning of Suction Systems 9000-605-10

4.1 Special AccessoriesThe parts listed below are notnotnotnotnot included in thescope of delivery.Please order as required.

Base for PAL 14 .......................... 7112-992-00

Base for PAL 50 .......................... 7112-993-00

Hood ............................................ 7112-200-00

Remote Indicator ......................... 7110-994-00

Test Set, complete ...................... 7110-064-00

3. OVERVIEW OF MODELSAmalgam SeparatorAZ 50 without Pump .......................... 7112-01

Amalgam SeparatorAZ 50 with Pump ............................... 7112-02

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7112-01

7112-02

5. TECHNICAL DATAModel 7112-01 without PumpModel 7112-02 with Pump

Electrical RatingVoltage (V) 230

Frequency (Hz) 50

Max. Current Consumption (A) 1,7

Centrifuge MotorVoltage (V) 230

Frequency (Hz) 50

Max. Current Consumption (A) 0,95

Rated Speed (1/min) 2780

Rated output (W) 90

Elektronic SystemProtective Low Voltage (V) AC/DC24

Current Delivery (A) max.0,7

Rate of FlowVolume of Secretion (l/min) max. 8

Amalgam Collecting VesselUsable Volume (ccm) ca.150

Replacement Interval (Monate) ca. 6-9

Dimensions7112-01: D = 14cm, L = 32,8cm, H = 36cm7112-02: D = 14cm, L = 38cm, H = 36cm

Temperature RangeMachine in operation ....... +10 to +40 °CStorage and transport .......... -25 bis +70 °C

Atmospheric HumidityMachine in operation ...................... max. 80%Storage and transport ..................... max. 95%

Weight7112-01 ................................ approx. 7.5 kg

Inspection label• CE-label

• Institut für Bautechnik, Berlin:General Structural Supervisory Approvalwith Inspection label: Z-64.1-13

• Electromagnetic Compatibility Test inaccordance with IEC 1000-4-3 EN V 50 140regarding high-frequency irradiation 3 V/Mcorresponds to EN 60 601-1-2.

A Vakuum-Anschluß, Schlauch D=25mmB Abwasser-Anschluß,Schlauch D=25mm

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16 15

14

17

13

6. OVERVIEW OF FUNCTIONS

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7. FUNCTIONAL DESCRIPTION1 Centrifuge Drum2 Light Barrier3 Solenoid Coil4 Probe5 Level Pump6 Amalgam Particles7 Collecting Vessel8 Motor9 Speed Monitoring Unit10 Motor Fan11 Safety Switch12 Centrifugal Pump13 Yellow LED Indicator14 Pushbutton15 Orange LED Indicator16 Green LED Indicator17 Display Module

7.1 Method of FunctioningThe function of the AZ 50 Amalgam Separatoris to provide continuous amalgam separationin all waste water stemming from the treatmentunits.During the process of suction removal, thesecretion that is drawn off is separated fromthe suction air in the upstream suction unit.

The secretion that accumulates continuouslyenters the centrifuge drum (1) in which theparticles of amalgam are retained bycentrifugal forces.Mounted below the centrifuge drum (1) is areplaceable collecting vessel (7) into whichthe separated particles of amalgam (6) areflushed after the motor (8) has been switchedoff. A probe (4) serves to check the filling levelinside the collecting vessel (7) and indicateson the display module (17) when the vesselneeds changing. A secure turn-lock fastenerserves to facilitate replacement and closure ofthe collecting vessel (7).The compact dimensions of the AZ 50 makesit possible to install the separator close to thetreatment units, thus resulting in shortsecretion-flow channels. Sturdy features ofdesign on the amalgam separator serve towarrant reliable functioning. After thecentrifuge drum has been switched off, abraking cycle provides a self-cleaning effect.This caters for extremely quiet runningcombined with a reliable separation efficiencyfactor exceeding 95% even when subjected tomaximum loading.

7.2 Amalgam separation SeparationMicroswitches located in the hose manifold orin the spittoon serve to activate the motor (8)(see wiring diagram). The amalgam-contaminated secretion arriving from thesuction unit is retained by centrifugal forces inthe centrifuge drum (1) of the AZ 50.Hooking the suction hoses into the hosemanifold serves to switch off the motor (8).The motor (8) receives a switch-off signal andimmediate braking takes place of thecentrifuge drum (1) which is brought to animmediate standstill so that inertia producedby the rotating water ring flushes the separatedparticles out of the centrifuge drum (1)downwards into the collecting vessel (7).A level pump (5) connected to the centrifugedrum (1) maintains the liquid inside thecollecting vessel (7) at a constant level. Thisprevents any escape of liquid when changingthe collecting vessel (7).

7.3 Filling Level MeasurementThe filling level in the collecting vessel (7) ischecked by a probe (4) each time the mainswitch is switched on. The filling level is alsoscanned every 12 hours when the AZ 50 isswitched on.The solenoid coil (3) triggers the scanningprocess, whereupon the probe (4) attractedby gravity sinks under its own weight. Thefilling level is measured via a light barrier (2)and indicated on the display module (17)when reaching 95%.As soon as the collecting vessel (7) has filledup with amalgam slurry to a level of 95 %, thegreen LED (16) will be accompanied by apermanent yellow LED (13) appearing on thedisplay module (17). In addition a hooter willsound which can be silenced by brieflypressing pushbutton (14). Afterwards theamalgam separator will be “READY FOROPERATION” once more.The yellow LED (13) lights up as a reminder tochange the vessel.Each time the main switch is switched onthese warnings will continue to be displayeduntil the vessel has been replaced.As soon as the filling level has attained 100 %the green LED (16) will go out and the yellowLED (13) will light up permanently, the orangeLED (15) will start flashing and the hooter willsound. In this case, the hooter cannotcannotcannotcannotcannot besilenced by pushbutton control. The amalgamseparator will then be placed out of service

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1413

15

16

until a new collecting vesselnew collecting vesselnew collecting vesselnew collecting vesselnew collecting vessel (7) has beenfitted. After the vessel has been replaced theAZ 50 can be put into normal operation onceagain.

7.4 Equipment FailureIf failure occurs on the amalgam separatordue to a technical defect, a fault alarm will beindicated on the orange LED (15). In addition,a hooter will sound which can be silenced bypressing pushbutton (14).The “FAULT” indicator is triggered forexample by a motor (8) defect via a speedmonitoring unit (9), defect on the motor fan(10) or by absence of collecting vessel (7)unleashed by a safety switch (11).

7.5 Service ButtonIf pushbutton (14) is pressed for longer than 2seconds, the motor (8) will start up. If thesuction unit is activated during this process bylifting up the suction hoses, the hoses can becleaned and disinfected in this way along withthe amalgam separator. To do this, switch onthe rinsing basin or place the hoses onto theOrocup filled with disinfectant.If the orange LED (15) lights up, the amalgamseparator can be started up manually bypressing pushbutton (14) for at least 2 sec.If, in response to pressing pushbutton (14)several times, a fault alarm is registered eachtime or if the amalgam separator fails to startup after pressing pushbutton (14), this is asign of a technical defect having occurred.

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ASSEMBLY

8. INSTALLATION HINTS8.1 Installation Room• The room temperature must not be allowed

to fall below + 10 °C in winter or rise above+ 40 °C in summer.

• Installation in purpose-built rooms, e.g.heating plant room must be clarifiedbeforehand as regards building legislation.

• Installation in wet rooms is not permissible.

8.2 Installation Site• The Amalgam Separator AZ 50 must be

placed directly next to or at a distance notexceeding 30 cm away from the suctionunit.

If the spacing distance between theAZ 50 and the suction unit is toogreat combined with failure toensure correct hose laying, there isa risk of the secretion not beingconveyed as it should.

• If installing the amalgam separator inconjunction with a Dürr Suction Unit VS 300space needs to be provided for the pressureequalising pipe.

• The amalgam separator can be mounted asfollows:

Directly on the wall.Use Mounting Set, Part no. 7801-003-00(included in accessories).

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Dental EZ

8

PAL

7

6

VS 300

10cm

100c

m

8.3 Combination FacilitiesThe Amalgam Separator AZ 50 can becombined with the following suction machines:

• AZ 50 combined with the Dürr Suction Unit.VS 300

• AZ 50 combined with water ring pumps.

8.4 Planning a Pressure EqualisingPipe or Air Demixer

To cater for proper pressure equalisation inthe suction system between the amalgamseparator and the suction unit, a pressureequalising pipe or air demixer needs to bemounted in conjunction with the followingcombinations:• 7112-017112-017112-017112-017112-01 - Pressure equalising pipe from

Dürr Dental - to be mounted in conjunctionwith the Dürr Suction Unit VS 300!

• 7112-02 7112-02 7112-02 7112-02 7112-02 - Air demixers, notnotnotnotnot supplied by DürrDental must be mounted with a water ringpump, e.g. Dental EZ!

8.5 Hose MaterialIn conjunction with the amalgam separatoruse may only be made of flexible PVC spiralhoses with integral spiral or equivalent hoses.

The following must not be used:Hoses not resistant to dentaldisinfectants and chemicals as wellas rubber hoses or solid PVC hosesthat are insufficiently flexible.

8.6 Hose LayingHose laying upstream or ahead of the AZ 50upstream or ahead of the AZ 50upstream or ahead of the AZ 50upstream or ahead of the AZ 50upstream or ahead of the AZ 50,i.e. between the suction unit or water ringpump and the AZ 50 must proceed observinga slope. The hose length must not be allowedto exceed 30 mm.

On the VS 300 the entrance to theamalgam separator must not behigher than the exit of the suctionmachine, otherwise there will be arisk of liquid and sediment flowingback into the suction machine.

Hoses positioned downstream or after the AZdownstream or after the AZdownstream or after the AZdownstream or after the AZdownstream or after the AZ5050505050 must observe a slope.

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8.7 Odour TrapThe drain on the AZ 50 must be connected viaan odour trap by the user.

9. INSTALLATION OF AZ 50Integration of the Amalgam AZ 50 intoexisting or new suction drawoff systems:

9.1 Fixing the AZ 50 in Place• If mains connection proceeds via an

earthing-contact type socketearthing-contact type socketearthing-contact type socketearthing-contact type socketearthing-contact type socket (wired to theequipment or surgery main switch) the AZAZAZAZAZ50 need not be fixed in position50 need not be fixed in position50 need not be fixed in position50 need not be fixed in position50 need not be fixed in position.

• Where fixed mains connectionfixed mains connectionfixed mains connectionfixed mains connectionfixed mains connection of the AZ 50takes place on terminal strips via theequipment or surgery main switch the AZ 50AZ 50AZ 50AZ 50AZ 50must be fixed in positionmust be fixed in positionmust be fixed in positionmust be fixed in positionmust be fixed in position.Refer to point 10 “Electrical Connection” forthis.

• Fix the amalgam separator in a suitableplace directly next to or at a distance notdirectly next to or at a distance notdirectly next to or at a distance notdirectly next to or at a distance notdirectly next to or at a distance notexceeding 30 cmexceeding 30 cmexceeding 30 cmexceeding 30 cmexceeding 30 cm from the suction unit orwater ring pump with a dowel and screwconnection made to a shelf, wall or angleframe.

If the spacing distance between theAZ 50 and the suction unit is toogreat combined with failure toensure correct hose laying, there isa risk of the secretion not beingconveyed as it should.

9.2 Fixing the Pressure EqualisingPipe in Place

The pressure equalising pipe as suppliedneeds to be mounted in the connecting hosebetween the Dürr Suction Unit VS 300 and theAmalgam Separator AZ 50.

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10. ELECTRICAL CONNECTIONElectrical connection must proceed via themain switch of the treatment unit or thesurgery main switch.

The leads or cables to the machinemust be laid without any stress orstrain (strain relief clamps).

10.1 Mains Connection via Earthing-Contact Type Socket

Where the mains connection, 230V, proceedsvia an earthing-contact type socketearthing-contact type socketearthing-contact type socketearthing-contact type socketearthing-contact type socket, this mustbe wired to the equipment or surgery mainswitch.

10.2 Fixed Mains ConnectionIn the case of fixed mains connection, 230V,,,,,connection proceeds on suitable terminalsbehind the main switch of the treatment unitvia the equipment or surgery main switch.Line cross section: 0.75 mm2

10.3 Electrical Connection in AZ 50Connection of the control contact on thesuction unit or water ring pump takes place onthe marked terminals inside the terminal boxof the AZ 50.Connection of the contact in the hosemanifold, dental mouth-rinsing basin valve,position selection valve and flushing system(built into the treatment unit) proceeds via thecontrol cable.1, 2 and 3 in terminal box of AZ 50.

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10.4 Display ModuleThe display module should be visible andaudible at all times. For that reason, it needsto be mounted in a place where it can beeasily observed.A display module is mounted to the AZ 50. Ifthe machine is located in a clearly visibleplace in the surgery, no further display modulewill be required.If the separator is not located in the dentalsurgery, an additionaladditionaladditionaladditionaladditional display module can bemounted. Again, this should be located in aplace where it can be easily observed, e.g.mounted to the treatment unit. Connection tothe AZ 50 proceeds via a 6-core cable anddistribution box.

11. PUTTING INTO OPERATION• Switch on equipment or surgery main

switch. As soon as the green LED lights up,the AZ 50 will be ready for operation.

• Carry out functional check and also checkthe connections for tightness.

11.1 Functional Check• To perform this check, switch on the

equipment or surgery main switch. Thesensor will be heard to fall as it proceeds tomeasure the filling level.

11.2 Visual CheckCheck connections, hoses and AZ 50 fortightness, sealing if necessary. For thispurpose, proceed to lift up the suction hoseand switch on the basin flushing system. Thisstarts up the AZ 50 and the liquid is transportedto the centrifuge drum from where it flows intothe drain.

11.3 Service ButtonPress the service button (14, page 8) for atleast 2 sec. This serves to start up thecentrifuge motor which will be braked to astandstill after approx. 30 sec.

11.4 Emergency ProgramIn the event of failure occurring on the AZ 50for technical reasons, short-time operation ofthe suction unit will be possible despite thisfailure. In that case, the secretion drawn off bysuction from the patient’s mouth will continueto be pumped into the AZ 50. The AZ 50 willthen act as a sediment separator but will needto be repaired as quickly as possible.

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12. TIPS FOR TRACING FAULTS

• Main switch on treatment unit or surgery main switchnot switched on.

• Cable fault or display module defective.

1. No indication on display module,separator not “READY FOROPERATION”

• Orange LED lights up, safety switch (11, page 30)activated or winding burned out.

• Mains fuse defective.

Faults Possible Cause

• Motor jammed.2. Yellow LED appears on displaymodule,centrifuge motor fails to start up -Fault

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• Collecting vessel incorrectly inserted or safety switch defective; if necessary replace switch orAZ 50.

• Centrifuge motor defective, remove any particles that may be present in the pump area orcentrifuge drum. Replace fuse.

• Switch main switch of treatment unit or surgery main switch to “ON” position.

Solution

• Replace cable or display module.

• Check to ensure that the centrifuge motor is running properly, remove any particles that may bepresent in the pump area or centrifuge drum.

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13. SERVICE-PROGRAMM

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FUNCTIONAL SEQUENCEIn order to be able to check whether the AZ 50is working properly, a service program can beactivated. The various program steps are asfollows:• To effect STARTUP press start button on

display module while simultaneouslyswitching the main switch to ON.

• Indicator Test:Green, orange and yellow LEDs light up.

• Safety limit switchSwitching-on signal for AZ 50.

• Motor run.

• Sediment filling-level measurement.

• Output signal AZ 50 for suction unit:Yellow LED lights up.

• Stop

Pressing the service button twicetwicetwicetwicetwice serves tocontinue the sequence of program steps.Pressing the service button onceonceonceonceonce serves torepeat a program step. Startup of the serviceprogram is indicated by an audible signal tonein addition to the 3 LEDs.

13.1 StartTo start the service program, keep the servicebutton pressed down on the display moduleand switch on the voltage supply to the AZ 50.As soon as the signal tone is heard, let go ofthe service button.

13.2 Indicator TestDuring the indicator test all three LEDs lightup in addition to a signal tone being heard.

13.3 Safety SwitchDuring this program step various input signalsundergo evaluation and are visible on thedisplay module. In addition to LED indication asignal tone will sound.In the normal state, the LEDs are switched off.

• Open collecting vessel, safety switch isactuated => orange LED lights up.

• Remove suction hose for hosemanifold => green LED lights up.

13.4 Motor Running and BrakingAction

Starting up this program step automaticallyactivates the motor and causes the motor toslow down after approx. 12 sec. This test stepcan be repeated by pressing the servicebutton once only. In that case the motorrunning action must be switched off bypressing the service button once more.During the program step Motor Running andBraking Action the various speed ranges arerepresented on the display module bydifferent LEDs.The no-load speed is set to 2800 RPM.

13.5 Sediment ScanningThis program step serves to check thesediment probe for proper functioning.Each time the service button is pressed, thesediment probe will descend. If use is madeof a test vesseltest vesseltest vesseltest vesseltest vessel, the various filling levels canbe scanned and rendered visible on thedisplay module.

13.6 Output SignalsIn the course of this program step, variousoutput signals are activated simultaneouslywhich can then be measured as a voltage ondifferent connectors.The specified voltages are optimum values.• Yellow LED on display module of AZ 50.

• Control signal for suction unit X 6 contact 1& 2 has connected through (relayresponded).

13.7 StopQuit the service program (stop=display off) byswitching off the voltage supply on thetreatment unit.Pressing the service button twice at the end ofthe program will return you to the beginning ofthe program again.

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14. TRANSPORT OF THE AZ 50Should it be necessary to move the AmalgamSeparator AZ 50 to a different place, thefollowing action needs to be taken prior totransporting the unit:• Clean and disinfect the suction system.

• Remove the contaminated collecting vesseland replace by a new collecting vessel.

• Do not turn the AZ 50 upside down asotherwise dirt will enter the centrifuge drumand cause congestion.

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1

2

1413

15

16

USE

15. OPERATION15.1 Ready for Operation State

Green LED (16) lights up.

15.2 Amalgam Collecting Vessel95% full

Green LED (16) lights up.andyellow LED (13) lights up.andhooter sounds.

• As soon as the 95% filling level is attained,the hooter can be switched off by pressingpushbutton (14). Afterwards the

green LED (16) - Amalgam Separator“Ready for Operation” will light up.

• The yellow LED (13) lights up as a reminderof the necessity to replace the amalgamcollecting vessel.

The amalgam collecting vessel needsto be replaced as soon as a fillinglevel of 95% is attained.Refer to point 17 for this.

15.3 Amalgam Collecting Vessel100% full

Yellow LED (13) lights up.andorange LED (15) starts flashing.andhooter sounds.

• Once the 100% filling level is attained, itwill no longer be possible to switch off thehooter by pressing pushbutton (14).

• The AZ 50 will not be “Ready for Operati-on” again until the amalgam collectingvessel has been replaced.

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17.2 Replacement of AmalgamCollecting Vessel

• Switch off the main switch of the treatmentunit.

If the collecting vessel is unscrewedwithout the treatment unit having beenswitched off, the orange LED will startflashing and the hooter will sound.

• Remove the empty collecting vessel fromthe carton and screw off the lid.

To reduce the risk of infection, werecommend that liquid-proof gloves beworn while replacing the collectingvessel.

• Hold the collecting vessel attached to theAZ 50 from underneath, turn in direction ofarrow and remove downwards.

• Cut the disinfectant bag open at one of thecorners and pour the contents into the fullcollecting vessel.

The disinfectant causes acid burns.If coming into contact with the eyes,rinse thoroughly with water andseek medical advice. If coming intocontact with the skin, wash off withsoap and water.

• Seal the lid on the full collecting vessel,paying careful attention to the markings onthe lid. If the lid is properly sealed, thesemarkings should face one another.

• Place the sealed collecting vessel in thetransport carton, seal and secure withadhesive tape to prevent accidentalopening.

• Insert the empty collecting vessel in the AZ50 from underneath and turn in the directionof the arrow as far as it will go.The AZ 50 is now “Ready for Operation”once more.

17.3 Disposal of Amalgam CollectingVessel

Write the name and address of the recyclingenterprise on the transport carton and send toauthorised disposal company by post or byother means.Relevant national regulations must beobserved.

15.4 FaultOrange LED (15) starts flashingandhooter sounds

• The hooter can be silenced by brieflypressing pushbutton (14).

• If pushbutton (14 ) is held down for longerthan 2 seconds the amalgam separator canbe started up once more.

• Green LED (16) lights up denoting “Readyfor Operation”.

• If, in response to pressing pushbutton (14)several times, a fault alarm is registeredeach time, this is a sign of a technical defecthaving occurred.

Call technician.For hints to assist the dentaltechnician in locating the fault,please refer to point 12.

16. CLEANING ANDDISINFECTION

A material-compatible, non-foamingdisinfectant for suction systems is prescribedfor cleaning and disinfecting the entire suctionsystem including the amalgam separator andthe water volume linked to the collectingvessel.

We recommend cleaning anddisinfection of the suction systemtwice a day.Further information will be gatheredfrom the Instructions for Disinfectingand Cleaning Suction Systems, Partno. 9000-605-10.

17. REPLACING THE AMALGAMCOLLECTING VESSEL

17.1 BEFORE replacing the amalgamcollecting vessel, please observethe following:

• Replace the amalgam collecting vessel inthe MORNING!We recommend that the amalgam collectingvessel always be replaced in the morningprior to the commencement of work. Thisserves to prevent liquid from dripping out ofthe drum during replacement.

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18. MAINTENANCE• Depending on the volume accumulating, the

amalgam collecting vessel will needreplacing once or twice a year.

To reduce the risk of infection, werecommend that liquid-proof gloves beworn while replacing the collectingvessel.

18.1 Annual Testing of Indicators onDisplay Module

This test must be carried out by suitablytrained personnel.Accessories needed for testing

1 Test vessel••••• Testing the green LED (16)

After the main switch is switched on, thegreen LED should light up denoting that themachine is “Ready for Operation”.

••••• Testing the orange LED (15) andpushbutton (14)

- Remove collecting vessel. The orange LED(15) should now light up and the hootershould sound as well.Pressing pushbutton (14) should silencethe hooter, while the orange LED willcontinue to flash.To reduce the risk of infection, werecommend that liquid-proof gloves beworn while replacing the collecting vessel.

• Testing the yellow LED (13)

- Position main switch to OFF- Remove collecting vessel, insert test

vessel, close and set to 100% filling level.- Position main switch to ON

After sediment querying has been carriedout, the yellow LED should now light up, theorange LED will respond by flashing andthe hooter will sound.

- Position main switch to OFF- Remove test vessel.- Insert collecting vessel (7) and close.

Remember to record the results of the testin operating log book!

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18.2 Testing for Proper WorkingOrder - Every 5 Years

This test should be carried out by an inspectorevery 5 years observing national statutoryregulations (in accordance with the GeneralSewage Handling Regulations, Annex 50,Dental Treatment).Required tools and equipment:1 Phillips screwdriver1 Test vessel1 Measuring cup• Remove collecting vessel. During this

process the orange LED on the displaymodule should respond by flashing and thehooter should sound as well. The hooter canbe silenced by pressing pushbutton (14,page 23) on the display module.

• Insert test vessel.

• Press pushbutton (14) on the displaymodule and the green LED denoting“READY FOR OPERATION” should light uponce more.

• Turn on dental mouth-rinsing basin anddraw off at least 200 ml water via suctionhose. Hook suction hose back in place.

• After the AZ 50 has switched off, remove thetest vessel and pour the water contained inthe vessel into a measuring cup.

If contents exceed 70 ml this denotes thatthe AZ 50 is in proper working order.

An operating log book must be keptby the user covering all maintenancework. See “OPERATING LOG BOOKFOR DÜRR AMALGAM SEPARATOR”,Part no. 9000-605-72

18.3 Inspection of the CentrifugalPump - Every 2 Years

Part no. 7112-991-00. Test and clean,replacing if necessary.

19. DISPOSAL OF THE MACHINESubstances including heavy metals andamalgam dust in the form of fillings that havebeen drilled open are drawn off via the suctionhoses. To reduce heavy metal contamination insewage stemming from dental treatmentequipment, the waste water accumulating mustbe disposed of observing the valid generalsewage handling regulations in force in thecountry of use.

Components contaminated with amalgam,such as strainers, filters and hoses, etc. mustlikewise be disposed of in accordance with therespective national regulations.

The AZ 50 can be disposed of in the normalway.

The built-in control unit, electronics board andelectronic components must be disposed of aselectronic scrap.