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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 :

•

Locking bolt sticking or out of alignment

Appliance fault / repair by technical service personnel:

•

Control for door locking output ACOUT 10

on CPU-board is faulty (permanent voltage)

•

Contact switch on door lock is faulty

•

Locking bolt cannot move freely / is blocked

Adjusting the door lock

•

Dismantle door cladding, close door

•

Loosen fixing screws on the door lock

•

By shifting the door lock centralise the face of the

locking bolt in the depression as shown, with a
spacing of approx. 2 mm

•

Tighten fixing screws on the door lock

Door lock will not disengage

The Display permanently shows "Please wait - Door unlocking" after switching power on or after a program has
ended (no explicit malfunction reported ):

•

Control "Door locking" Output ACOUT 10 on CPU-board is faulty

•

Drive for the door locking is faulty

•

Door contact switch of the door lock is faulty

•

Locking bolt cannot move freely / is blocked

In the Diagnosis Program switch on output ACOUT10, functional control power output and locking
Unlock door manually (for example with the help of a screwdriver).

ca.2mm

09/21/2006

27/61

Servicemanual DAC Professional

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Содержание DAC PROFESSIONAL

Страница 1: ...b a PROFESSIONAL p j...

Страница 2: ...Sirona Dental Systems GmbH Operating Instructions DAC Professional 59 57 928 D 3370 2 D 3370 201 01 11 02...

Страница 3: ...ting of preheating 35 Fault 26 A D converter 36 Fault 27 Temp Sens def 1 2 37 Fault 29 Battery RAM 38 Fault 31 System leak 39 Fault 32 Power loss Sterilize sterile filter 41 Fault 33 Pressure loss 42...

Страница 4: ...ower switch 6 Sterile filter 16 Sliding lock handle 7 Connection for pressure release for water storage tank IN 17 Hinged door opens to the left 8 Cooler Blower 18 Operator s control and monitoring pa...

Страница 5: ...ofessional operates with a blower 8 on the rear of the unit as part of the cooling system The functioning and the service life of the unit can be impaired if the blower 8 is not allowed to freely remo...

Страница 6: ...ow 15 S to comply with EN13060 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 ad...

Страница 7: ...Figure 4 Back view 09 21 2006 5 61 Servicemanual DAC Professional...

Страница 8: ...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 tw...

Страница 9: ...tions as well as country specific safety controls where required Mise en service ex cut e conform ment aux instructions d installation et aux instructions de pr installation et ventuels contr les de s...

Страница 10: ...hnicien responsable de l installation et par l exploitant ou une personne nomm e par lui Vous pouvez nous renvoyer le protocole d installation fiche de garantie d ment rempli par fax ou par voie lectr...

Страница 11: ...iginal will be kept in the doctor s office or in the clinic or hospital The first copy will remain with the person who performs the service 4 Data of Device Serial No _________________________________...

Страница 12: ...f the chamber and the tray rack Check the chamber and the tray rack for dirt rust The chamber should be checked at every use by the practice personnel Cleaning the chamber is not a part of the mainten...

Страница 13: ...k O Adjustment corrected 5 10Cleaning the cooler fan cooler ribs To do this completely disassemble the cooler and the fan and clean the cooler ribs and the fan on both sides with a vacuum hoover Here...

Страница 14: ...rrect position Tighten to finger tightness and then use an engineer s wrench to turn one half turn more O Hoses and connections are o k O Connections tighened 6 Functional check 6 1 Run a program Vacu...

Страница 15: ...usual noises e g Clattering of lose parts when autoclave vibrates If there are unusual noises caused by the vacuum pump e g from the cavitation jet exchange it Add a protocol print out and the indicat...

Страница 16: ...nal notes ______________________________________________________________________ ______________________________________________________________________ ________________________________________________...

Страница 17: ...cuum pump 3 S LW Sensor Leitwert sensor for conductivity S Q1 Str mungsw chter flow sensor for dist water V Ventil Magnet valve solenoid V V V B B B Bel ftung ventilation open 8 V DA1 Druckabla 1 pres...

Страница 18: ...lization chamber and on the round plate around the door of the sterilization chamber Repair and clean if necessary Check to make sure that the autoclave is properly set up it must be installed with a...

Страница 19: ...se Fault 1 Vacuum system The sub atmospheric pressure achieved is very weak or the pressure is the same as in the room Fault 31 System leaks Pressure rise over P3 very large leaks Sub atmospheric pres...

Страница 20: ...ak Check the vacuum performance of the membrane as follows 1 Check to see if there are leaks 2 Make sure that the chamber to be evacuated is empty and dry 3 If there are no leaks and if the chamber is...

Страница 21: ...ogram Observe the water column in the hose between the intake fitting for the chamber and the solenoid valve for the vacuum If there is a leak water will be pulled in the direction of the solenoid val...

Страница 22: ...must not switch 3rd Overheating protection for the Steam Generator fuse blown on the heating coil of the steam generator contact broken Measure voltage behind fuse this will usually be due to a fault...

Страница 23: ...30V AC Measure voltage at output of the rectifier socket approx 200V DC Check coil of solenoid valve is conducting Solenoid valve mechanically blocked clogging Open valve casing Pressure release filte...

Страница 24: ...ntilation solenoid valve faulty output ACOUT8 giving permanent signal relay stuck Exchange CPU board Pressure sensor Analog input AIN 3 measures too low Pressure sensor signal Signal processing to con...

Страница 25: ...y operator If problem occurs once or occasionally Check the power supply of the building for electromagnetic disturbances by a technician If necessary use another power plug and or use a line filter M...

Страница 26: ...rd faulty Check in the Diagnosis Program Digital Inputs E 1 if the door switch needs adjusting see below Adjusting the door contact switch In the diagnosis program Digital Inputs select Input E1 Door...

Страница 27: ...s by personnel This fault can occur after a program termination and an immediate restart Wait for two minutes and try to start again Appliance fault Repair by technical service personnel Fault immedia...

Страница 28: ...noid valve on CPU board output ACOUT 5 Fuse F3 defective F3 exchange CPU board Feed pump faulty Feed pump solenoid valve faulty does not open Exchange feed pump or solenoid valve for feed pump Pressur...

Страница 29: ...lose door Loosen fixing screws on the door lock By shifting the door lock centralise the face of the locking bolt in the depression as shown with a spacing of approx 2 mm Tighten fixing screws on the...

Страница 30: ...unction 14 will appear not before a few seconds after the program starts or during the program run In the display the two following warnings will alternate Warning Water supply or Malfunction 14 No fe...

Страница 31: ...ater storage tank Check the filling level of the external water storage tank Check the position of the suction filter on the bottom of the water storage tank Make sure that there are no kinks twists o...

Страница 32: ...y Malfunction 14 WARNING Water supply aqua dest dem refill Warning message Can you hear the feed pump when the program starts Check the activation control for the feed water pump and the valve 33 00 t...

Страница 33: ...nt in the digital outputs of the Diagnosis Program First disconnect both of the plugs of the reed contact 41 00 B and then make a short circuit by placing a jumper at the digital output Then if necess...

Страница 34: ...ical service personnel Overview of sensors analog inputs Sensor No Input No Sensor characteristic Sensor designation function 1 AIN1 PT 1000 Class A Temp_chambr_elec Temperature sensor Steam for progr...

Страница 35: ...faulty Signal processing to CPU board faulty 24V voltage to pressure sensor at CPU board faulty Exchange pressure sensor Exchange CPU board Sequence of testing 24V supply between GND and UB measured...

Страница 36: ...faulty Check in Diagnosis Program Switch on output ACOUT 2 the LED for this output lights up Measure voltage at output ACOUT2 Overheating protection Preheating faulty Control unit permanently open Con...

Страница 37: ...rature sensor Pre heating faulty Temp sensor Preheating measurements too high fluctuating in the Diagnosis Program check the analog input AIN4 during a program by pressing the button Exchange temperat...

Страница 38: ...m 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 person...

Страница 39: ...am then it can be assumed that the temperature sensor from AIN 1 now in Analog input AIN2 is measuring properly so that the malfunction is due to the faulty signal processing on the AIN 1 exchange CPU...

Страница 40: ...reset to the value from the EEPROM At the same time all record data in the memory is deleted Causes Remedy Operating fault Checks by personnel After quitting the malfunction report Enter correct time...

Страница 41: ...oid valve soiled plunger contact surface Test at reduced pressure Program Vacuum test Observe water column in pipe between pressure release solenoid valve and sterile filter if there are leaks the wat...

Страница 42: ...tput ACOUT8 Ventilation solenoid valve in the Diagnosis Program paint soap solution at the appropriate points for example Stopper of pressure release filter Bonded T connector in pressure release filt...

Страница 43: ...sterile filter on the rear side of the autoclave Sterilize the filter in the quick program After completion of the program replace the sterilized filter Causes Remedy Operating fault Check by personne...

Страница 44: ...Operating fault Checks by operating personnel Appliance fault Repair by technical service personnel Security valve leaking Security valve opens too soon steam generator is able to compensate for loss...

Страница 45: ...og input AIN1 see last line of record print out Carry out a vacuum test if there is no leaking see under Pressure sensor signal too high Temperature sensor Temp_Kess_Prog Analog input AIN1 measures to...

Страница 46: ...gital input DIN 2 is faulty Control does not open on overheating shortage of water water shortage is therefore not recognised and the capillary tube overheating control switches off see also Fault 2 S...

Страница 47: ...the theoretical value needed for saturated steam The temperature of temperature sensor Temp_Chambr_Dis1 2 analog input AIN2 corresponds to the theoretical saturated steam pressure i e only the temper...

Страница 48: ...from temperature sensor Temp_chambr_elec AIN1 and from temperature sensor Temp_Chambr_Dis1 2 AIN2 correspond to one another but both are too high to produce saturated stream Exchange pressure sensor I...

Страница 49: ...needed for saturated steam The temperature of temperature sensor Temp_Chambr_Dis1 2 analog input AIN2 corresponds to the theoretical saturated steam pressure i e only the temperature from the tempera...

Страница 50: ...in condensation return pipe Exchange steam generator Capillary Overheating protection control for Steam generator faulty Controller switches too early Exchange steam generator Observe level control i...

Страница 51: ...oo high for the generation of saturated steam Voltage at ACOUT1 does not switch off during the regulation Check thermal transition semiconductor relay ACOUT1 to the cooling body Exchange CPU board Pre...

Страница 52: ...ord print out Print out reading for control pressure corresponds to control pressures P 6 P10 Print out reading for temperature sensor Temp_Chambr_Dis1 2 at analog input corresponds with the pressure...

Страница 53: ...meters will be shown on the display Cause Correction Check for cause of problem by operator Acknowledge the malfunction and select and start a different program Malfunction in unit correction by Techn...

Страница 54: ...blockage of the pressure release Capillary switch water level niveau defective on the steamgenerator tube heating or the steam generator heating has a poor thermic contact to the boiler itselfe this...

Страница 55: ...99 Time 12 16 28 Start Cycle no 5 Preheating 133 5 C Water conductivity 7 S cm Program step Press Temp Time bar C min Start 0 03 70 1 00 00 1 Pulsing Evacuation 0 90 67 2 01 30 Steam injection 0 10 98...

Страница 56: ...Sirona DAC Professional Process 09 21 2006 54 61 Servicemanual DAC Professional...

Страница 57: ...50 115 1 69 16 18 2 66 262 116 1 75 17 19 4 67 273 117 1 80 18 20 6 68 286 118 1 86 19 22 0 69 299 119 1 92 20 23 4 70 312 120 1 95 21 24 9 71 325 121 2 05 22 26 4 72 340 122 2 11 23 28 1 73 355 123 2...

Страница 58: ...sfactory B If the indicator still shows some yellow colour the steam penetration has NOT been satisfactory A B Place the spiral unit with its inserted indicator strip into the autoclave with the items...

Страница 59: ...indicator has only been changed partly the penetration is not satisfactory 4 Only if the colour of the indicator is uniform the penetration is satisfactory According to EN13060 this is a PCD Process C...

Страница 60: ...Valve diagram 09 21 2006 58 61 Servicemanual DAC Professional...

Страница 61: ...tatistics Diagnosis Delete Backup Diagnosis Backup Parameter Diagnosis Memory init Diagnosis Version hh mm ss x xx bar xx C Page 1 Program cycle Diagnosis program Nitram Dac Professional Service dd mm...

Страница 62: ...ocess times t1 xx Monit times Uet1 xx Conductivities L1 xx System Flags F1 xx Pol digit inputs IM1 xx Sensor numbers Sn1 xx Production year Fj1 xx Pol digit outputs OM1 xx Production no Fn1 xx Pressur...

Страница 63: ...Revision history Revision No Date Y M D Responsible Description of change PRO 1 0 21 09 06 MH Initial release 09 21 2006 61 61 Servicemanual DAC Professional...

Страница 64: ......

Страница 65: ...61 75 538 D 3472 D 3472 076 02 01 02 1 b...

Страница 66: ...t K p a p d e OMMN p W m d a PQTOKMTSKMOKMNKMO MPKOMMT KJk KW MMM MMM f p a p d e rp W W c PN SQSOR _ d K K p a p ii QUPR p a I p NMM I k OUOTP rp p PORM o a J r R j I l iRi RvS l k SN TR RPU a PQTO...

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