Sirona DAC Professional Service Manual
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Sirona DAC Professional Service Manual

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Summary of Contents for Sirona DAC Professional

  • Page 1 a^`=PROFESSIONAL pÉêîáÅÉ=j~åì~ä båÖäáëÜ...
  • Page 2 Sirona Dental Systems GmbH Operating Instructions DAC Professional 59 57 928 D 3370 D 3370.201.01.11.02...

  • Page 3: Table Of Contents

    Content Page Installation of the Dac Professional…………………………………………… Maintenance…………………………………………………………………... Fault 1: Vacuum system………………………………………………………. Fault 2: Steam generator……………………………………………………… Fault 4: Pressure Release……………………………………………………… Fault 6: Ventilation……………………………………………………………. Fault 8: Time base…………………………………………………………... Fault 9: Door open…………………………………………………………….. Fault 10: Overheating of the Steam generator………………………………… Fault 12: Door locking………………………………………………………...

  • Page 4: Installation Of The Dac Professional

    Installation of the DAC Professional Figure 1 General features 1 Water storage tank 11 Power cable 2 Emergency overflow (OUT) 12 Front adjustable feet of the unit 3 One-way drain (OUT) 13 Serial data and printer interface (RS 232). In combination with NitraWin use serial modem cable 14 Fuses for the unit: 2 ×...
  • Page 5 Above the autoclave there must be sufficient space to allow access to the built-in water storage tank (1) and for a good circulation of air. The DAC Professional operates with a blower (8) on the rear of the unit, as part of the cooling system.
  • Page 6 Destilled or demineralised water below 15µS. Waste-water tank The DAC Professional is directly supplied with demineralised / distilled water through a hose from the built-in water storage tank (right side of the tank (front side)). The advantage of this system is that only electric power is required, and no water from the mains.
  • Page 7 Figure 4 Back view 09/21/2006 5/61 Servicemanual DAC Professional...
  • Page 8 Example is shown on figure 5. A 1 meter outlet connection pipe can be supplied on request. The wastewater outlet should be at least 30 cm lower than the autoclave and the connection pipe should not sag or be twisted, so that all water can drain away. Figure 5 Back view 09/21/2006 6/61 Servicemanual DAC Professional...
  • Page 9 Fehlende Teile Missing parts Pièces manquantes Piezas faltantes Beschädigte Teile Damaged parts Pièces endommagées Piezas dañadas Fehlerhafte Funktion Nonconforming functions Funcions défectueuses Funciones defectuosas 09/21/2006 7/61 Servicemanual DAC Professional FÜR DEN HÄNDLER FOR THE DEALER POUR LE DEPOSITAIRE PARA EL DEPOSITANTE...
  • Page 10 REVENDEURS distribuidores de la página Internet (onglet SERVICE ) du site de Sirona, o bien por fax. Este im Händlerbereich der Sirona- us. Based on this document, the Internet-Seiten oder konventio- installed unit is registered by internet Sirona.

  • Page 11: Maintenance

    Date: Time: ___________________________________________ ______________ from: ______ _______ Serviced by (company, depot, or specialized Sirona Name and address of doctor’s office, clinic, or hospital:: dealer): ___________________________________________ ___________________________________________ The above-stated person has performed the maintenance work according to the following service checklist:...
  • Page 12 Starting from a level position, the front feet of the autoclave must be screwed three (3) turns for the DAC Professional. The autoclave must slope to the rear to ensure that the residual water and condensate will properly flow out toward the rear.
  • Page 13 The cap nuts must be unscrewed to remove the filter inserts. These nuts are freely accessible without further disassembly of the autoclave. Helpful hint: place the autoclave between two tables for your work. Cleaned Exchanged 09/21/2006 11/61 Servicemanual DAC Professional...
  • Page 14 ……….. min. If the time is exceeded check the autoclave for leakages, function of the solenoid valves and the performance of the vacuum pump. Leak rate = __________________ mbar/min Time for evacuation= ___________ min O.K. Works done: ________________________________________________________ 09/21/2006 12/61 Servicemanual DAC Professional...
  • Page 15 Add the protocol print-outs (stick them in the fields at the end of this protocol) Leakages checked Acoustic check performed Works done: _________________________________________________________ 7 Reset the maintenance counter ⇒ Resetting as described in the separate Instruction. Done 09/21/2006 13/61 Servicemanual DAC Professional...
  • Page 16 We confirm that the maintenance has been performed in accordance to the above mentioned instruction. __________________________________________ ___________________________________________ Signature of the service technicians Signature / Stamp of the practice / clinic 9 Protocol Print-outs 9.1 Vacuum-Test: 9.2 Quick-Program: 09/21/2006 14/61 Servicemanual DAC Professional...

  • Page 17: Fault 1: Vacuum System

    This overview shows a rough schematic of the spatial configuration of the DAC Professional Configuration of the component FRONT component groups, pipes, and hoses, in the DAC Professional. The following error groups in the autoclave (TOP VIEW) descriptions will refer to this overview to help you find the component groups to be checked.
  • Page 18 Fault diagnosis for DAC Professional Fault 1: Vacuum system Tripping conditions: Fault conditions may occur if the monitoring time Uet1 was exceeded for achievement of the following: • The required evacuation pressures for the individual sub-atmospheric pulses – P37, P38, P40, P41 for cold starts –...
  • Page 19 Fault diagnosis DAC Professional Fault 1: Vacuum system Faults in the autoclave / Correction of faults by technical service personnel Fault 1 Vacuum system Important: All vacuum tests must be conducted with a cold, dry autoclave. Watch the Note: Start the vacuum test evacuation pressure achieved here and the pressure change over time (from the display).
  • Page 20 Fault diagnosis for DAC Professional Fault 1: Vacuum system Fault 1: Vacuum system Fault class: Fault in control system or function of the pump You can check the input voltage for the vacuum pump, as well as the function of the pump, as follows: Make sure that the intake side is vented, since the pump will not start against a vacuum.
  • Page 21 Fault diagnosis for DAC Professional Fault 1: Vacuum system Fault 1: Vacuum system Fault class: leakages Leaks in the solenoid valves ► The solenoid valve for the venting (VB) will not close, or it leaks • Check the coil, the rectifier plug, and the control at output 8 •...

  • Page 22: Fault 2: Steam Generator

    Fault diagnosis DAC Professional Fault 2: Steam generator FAULT 2: Steam generator Triggered by: The following monitoring time limits have been exceeded • Uet2 for the warming-up phases in the fractionations until reaching P5 (warm start), P39 (cold start), P43 (cold start disinfection) or •...

  • Page 23: Fault 4: Pressure Release

    Fault Diagnosis DAC Professional Fault 4: Pressure release FAULT 4: Pressure release Triggered by : The monitoring time limit Uet5 for the pressure release until reaching P11 has been exceeded. Causes/ Remedy Operating fault /Check by personnel: • Check that the cooling water outlet pipe is free of kinks and has a steady downward gradient •...

  • Page 24: Fault 6: Ventilation

    Fault Diagnosis DAC Professional Fault 6: Ventilation FAULT 6: Ventilation Triggered by: The monitoring time limit Uet7 for the ventilation of the chamber until reaching pressure P12 was exceeded Causes/ Remedy Operating fault/Check by personnel: • The sterile filter is dirty, this will the autoclave show with the display “Replace sterile filter”...

  • Page 25: Fault 8: Time Base

    Error diagnosis DAC Professional Malfunction 8: Time base Malfunction 8: Time base Trigger for the malfunction: The maximum difference has been exceeded between the duration of a program cycle and the time measured by the internal CPU clock. Cause / Correction Check for cause of problem by operator: ⇒...

  • Page 26: Fault 9: Door Open

    Fault Diagnosis DAC Professional Fault 9: Door open FAULT 9: DOOR OPEN Triggered by: Door contact (digital input DIN1) was closed during a program Causes/ Remedy Operating fault/ Checks by personnel: • Press down door handle as far as possible Appliance fault / Repair by technical service personnel ►...

  • Page 27: Fault 10: Overheating Of The Steam Generator

    Fault Diagnosis DAC Professional Fault 10: Overheating Steam generator FAULT 10 : Overheating of Steam Generator Triggered by: • The capillary tube controller "Level control“ (digital input DIN2) is already open at the start of the program (Fault displayed when program is started) •...
  • Page 28 Fault Diagnosis DAC Professional Fault 10: Overheating Steam generator Fault during program • Control for feed pump/ feed Feed pump stays on - pump solenoid valve pumping noise CPU-board output ACOUT 5 / Fuse F3 defective ⇒ F3/ exchange CPU-board •...

  • Page 29: Fault 12: Door Locking

    Fault Diagnosis DAC Professional Fault 12: Door locking FAULT 12: Door locking Triggered by: • The door locking contact DIN5 is not switched after time period z31 (Door closed when no power supply, contact DIN5 still open). Causes / Remedy: Operating fault / Check by operating personnel : •...

  • Page 30: Fault 14: No Feed Water

    Fault diagnosis for DAC Professional Fault 14: No feed water Fault 14: No feed water (or Warning message: No feed water) Trigger for the error: In addition to the monitoring action by the flow sensor 41-00 during a cycle (internal error 14) the float switch in the...
  • Page 31 Fault diagnosis for DAC Professional Fault 14: No feed water Malfunction in unit – correction by Technical Service staff Models without an internal tank, or models with an internal tank but with an external supply of feed water: ⇒ For supply of feed water to the autoclave from a water-treatment system (for example, MELAdem ®...
  • Page 32 • Clean the solenoid valve (plunger) and check the coil, or replace the feed-water dosing unit 33-00. ⇒ The nozzle (flow limiter) 33-03 of the feed-water dosing unit 33-00 is clogged. • Clean the dirty nozzle, or replace the feed-water dosing unit 33-00. 09/21/2006 30/61 Servicemanual DAC Professional #3/4...
  • Page 33 Adjustment Instructions. • The switching piston with magnet (41-02) may be jammed. • The reed contact may be defective (41-01) • Adjust the flow sensor 41-00 if necessary. If required, repair it or replace it. 09/21/2006 31/61 Servicemanual DAC Professional...

  • Page 34: Fault 18: Sensor "Nr" Input "Nr

    Fault-diagnosis DAC Professional Fault 18: Sensor "nr" Input "nr" FAULT 18: Sensor "nr" Input "nr" Triggered by: • The internal check of the sensors for temperature, pressure, or conductivity showed too large deviations. Such malfunction reports can occur immediately when the appliance is switched on or while a program is running.
  • Page 35 Fault-diagnosis DAC Professional Fault 18: Sensor "nr" Input "nr" Display message Triggered by/Cause Correction Comments / Remarks • Exchange Fault18 Temperature at analog input Until the sensor/CPU-board can be AIN1 ≤ 0°C or ≥ T23 Sensor: 1 Input 1 exchanged, in the Service-program temperature •...

  • Page 36: Fault 21 Preheating

    Fault diagnosis DAC Professional Fault 21: Preheating FAULT 21 Preheating Triggered by: The monitoring time limit Uet11-Uet16 from switching on the preheating until reaching the necessary temperature has been exceeded Causes/ Remedy Operating fault/Checks by personnel: • Mains electricity voltage too low: Check mains supply installations •...

  • Page 37: Fault 22: Overheating Of Preheating

    Fault diagnosis DAC Professional Fault 22: Overheating preheating FAULT 22: Overheating of preheating Triggered by: The limit value for the preheating-temperature T10 was exceeded Causes / Remedy Operating faults / Checks by personnel: Appliance fault / Repair by technical service personnel ►...

  • Page 38: Fault 26: A/D-Converter

    Fault Diagnosis DAC Professional Fault 26: A/D-Converting FAULT 26: A/D-converter Triggered by: The maximum permissible deviation for the signal processing in the CPU (A/D-conversion) was exceeded Causes/ Remedy Operating faulty/Checks by operating personnel: Appliance fault / Repair by technical service personnel ►...

  • Page 39: Fault 27: Temp.sens.def 1,2

    Fault-diagnosis DAC Professional Fault 27: temp. Sens.def 1,2 FAULT 27 Temp.Sens.def 1,2 Triggered by : The maximum permissible deviation D3 (value x 0.1 in °C) between the two temperature sensors " "Temp_chambr_elec" on AIN1 and "Temp_chamber_Dis1/2“ on AIN2 was exceeded.

  • Page 40: Fault 29: Battery Ram

    Fault-diagnosis DAC Professional Fault 29: Battery RAM FAULT 29: Battery RAM Triggered by: In the data memory of the CPU there is a data inconsistency or a loss of data, This can be due to an electrical disturbance (e.g. very high power supply disturbances), a low battery voltage or a hardware defect in the RAM. On quitting the fault the clock time is automatically set at 00:00 and the load counter is reset to the value from the EEPROM.

  • Page 41: Fault 31: System Leak

    Fault diagnosis DAC Professional Fault 31: System leak FAULT 31: System leak Triggered by : During the "Vacuum test" program the evacuation pressure exceeded the maximum permitted value P13 (very large leak ): Causes / Remedy Operating fault / Checks by personnel : •...
  • Page 42 Fault diagnosis DAC Professional Fault 31: System leak ► Leaks at screwed and bonded connections Test at elevated pressure: Start "Diagnosis Program“/ "Leak search“ (0.3 bar, 8 min) or provide compressed air (maximum 2bar) through the ventilation air connection, closing output ACOUT8 "Ventilation solenoid valve"...

  • Page 43: Fault 32: Power Loss / Sterilize Sterile Filter

    Fault-diagnosis DAC Professional Fault 32: Power loss/Sterilize sterile-filter FAULT 32: Power loss / Sterilize sterile filter Triggered by : After the start of a program there is a loss of the power supply. The fault is reported as soon as the electric power...

  • Page 44: Fault 33: Pressure Loss

    Fault Diagnosis DAC Professional Fault 33: Pressure loss FAULT 33: Pressure loss Triggered by : The maximum time Uet10 below the threshold pressure (corresponds to the maximum operating time of the steam generator to reach the operating pressure) has been exceeded.

  • Page 45: Fault 34: Sterilization Tu

    Fault Diagnosis DAC Professional Fault 34: Sterilization TU FAULT 34: Sterilization TU Triggered by: Temperature fell below the minimum level for the sterilization/disinfection during the period T1-T5 (measured at the temperature sensor "Temp_chambr_elec“ at AIN1). Cause / Remedy Operating fault / Checks by personnel: •...
  • Page 46 Fault Diagnosis DAC Professional Fault 34: Sterilization TU ► Pressure sensor / Analog input AIN 3 measures too high If the checks show there is no leak (Vacuum test), check through the following on the program print-out: Pressure reading on print-out corresponds to the control pressures P 6 – P10 Print-out readings from temperature sensor "Temp_chambr_elec“...
  • Page 47 Fault Diagnosis DAC Professional Fault 34: Sterilization TU Fault diagnosis using the program print-out FAULT 34: Sterilization TU The control pressure reading on the print- The control pressure reading on the print-out out at the time of the fault corresponds to at the time of the fault is lower than the rated the rated values P6 –...

  • Page 48: Fault 35: Sterilization To

    Fault-diagnosis DAC Professional Fault 35: Sterilization TO FAULT 35: Sterilization TO Triggered by: The maximum temperature (T1-T5)+D5 for the sterilization / disinfection during the period T1-T5 (measured by the temperature sensor "Temp_chambr_elec“ at AIN1) has been exceeded Cause / Remedy...
  • Page 49 Fault-diagnosis DAC Professional Fault 35: Sterilization TO Fault diagnosis using the program print-out FAULT 35 Sterilization TO The control pressure reading on the print- The control pressure reading on the print-out out at the time of the fault corresponds to at the time of the fault is markedly higher than the rated values P6 –...

  • Page 50: Fault 36: Sterilization Pu

    Fault-diagnosis DAC Professional Fault 36: Sterilization PU FAULT 36: Sterilization PU Triggered by: The calculated temperature required to produce saturated steam on the basis of the measured pressure is below the minimum temperatures T1 to T5 Causes / Remedy Operating fault/Checks by personnel: •...

  • Page 51: Fault 37: Sterilization Po

    Fault-diagnosis DAC Professional Fault 37: Sterilization PO FAULT 37: Sterilization PO Triggered by: The measured pressure gives a calculated value for the temperature required for saturated steam that lies above the maximum temperature (T1-T5) + D5 for the sterilization / disinfection during the period T1-T5...

  • Page 52: Fault 38: Sterilisation Td

    Fault-diagnosis DAC Professional Fault 38: Sterilization TD FAULT 38: Sterilisation TD Triggered by: The maximum permissible difference D6 between the temperature value to generate saturated steam calculated on the basis of the measured pressure and the value measured by the temperature sensor "Temp_chambr_elec“ at AIN1 during the period T1-T5 was exceeded.

  • Page 53: Fault 48: Parameters

    Fault diagnosis DAC Professional Fault 48: Parameters Fault 48: Parameters Trigger for the malfunction: If a sterilization program has been started the CPU checks, if the parameters stored in the electronic board will guarantee a successful sterilization cycle. If not (e.g. the time for sterilization at 134°C is less than 180 seconds or less than 900 seconds for 121°C), the "Fault 48: Parameters"...

  • Page 54: Possible Solutions For Drying Problems

    The Vacuumpump is insufficient (Check the Sterilisation Reports, Evacuation time DAC Professional ca.2min...3,5 min. Bad load: flat layed pouches/packs Cooler blocked (DAC Professional, dusty, the autoclave is too close to the wall or better: staple like files/up standing placed in a to narrow cabinet) internal blockage (by instrument oils!) as a result the vacuum pump has no max.

  • Page 55: Cycle Printout

    The printout of the cycle log contains the following information: ------------------------------------------ Program which has started Sirona DAC Professional ------------------------------------------ Current date Program : Universal program 134°C wrapped Time when program started Date : 07.07.1999 Time : 12:16:28 (Start) Cycle no .: 5...

  • Page 56: Cycle Process

    Sirona DAC Professional Process 09/21/2006 54/61 Servicemanual DAC Professional...

  • Page 57: Saturated Steam Table

    40,1 2,62 42,8 2,70 44,9 2,78 47,6 2,87 50,3 2,95 53,2 3,04 56,2 3,13 59,4 3,22 62,7 3,32 66,2 3,41 69,9 3,51 73,8 3,61 77,8 4,16 82,0 4,76 86,4 5,43 91,0 6,18 95,8 7,05 09/21/2006 55/61 Servicemanual DAC Professional #1/2...

  • Page 58: Helix Test

    Helix test If you wish to carry out a control of the DAC Professional you can use a sterilization indicator and batch monitoring system consisting of a test receptacle (the spiral unit) and an indicator strip. We recommend Helix Test set mat. No 58 92 042 which is designed only for testing Class B autoclaves: i.e.

  • Page 59: Bowie & Dick Test

    4. Only if the colour of the indicator is uniform the penetration is satisfactory. According to EN13060 this is a PCD Process Challenge Device. Bowie&Dick test set: mat no.: 58 92 034 Helix Test Set: mat. no.: 58 92 042 09/21/2006 57/61 Servicemanual DAC Professional...

  • Page 60: Valve Diagram

    Valve diagram 09/21/2006 58/61 Servicemanual DAC Professional...

  • Page 61: Diagnosis Program

    Program-cycle / Diagnosis-program Nitram Dac Professional Press both buttons Buttons:"Continue" in the Menu ing diagnosis-rogram and hold ... Button choose program:"Enter/Quit/Input" in the diagnosso-program ... after power is switched on. Button Start/Stop: "Escape/Leave/Interrupt" in the diagnosis-program Diagnosis Diagnosis Diagnosis Diagnosis...

  • Page 62: Service Program

    Program-cycle / Service-program Nitram Dac Professional Selection buttons Press all three Button "Program" buttons and hold. Button "Start-Stop" ... after power is switched on Sirona-Service Pressures Pressures Pressures Pressures P1: xx P2...Pn: xx Px: xx (flashs) Sirona.Service Temperatures Temperatures Temperatures...

  • Page 63: Revision History

    Revision history Revision Date (Y-M-D) Responsible Description of change PRO 1.0 21.09.06 Initial release. 09/21/2006 61/61 Servicemanual DAC Professional...
  • Page 65 61 75 538 D 3472 D 3472.076.02.01.02...
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