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Endos AC/ACP Service Manual - at www.ImageWorksCorporation

1. SERVICE MANUAL Schematics and drawings DENTX 12 SPARE PARTS 1 TIMER ENDOS AC ENDOS ACP 2 EXTENSION ARM SCISSOR ARM 3 MOBILE STAND 4 TUBEHEAD 5 OPTION Rev 7 97 ENDOS AC ACP 120V DENTX SERVICE MANUAL Spare parts 1 TIMER ENDOS
2. 2 5 4 5 6 e PULSANTE RAGGI N B COLLEGARE I FLAT DELLA TASTIERA AL X RAY BUTTON X1 PIN 2 32 E PIN 15 31 DELLA SCHEDA LOGICA A e THE FLAT CABLES FROM THE KEYBOARD HAS TO BE CONNECTED TO pin 2 32 AND pin 15 31 OF CPU BOARD 22 13 JSPOSITIVO PULSANTE a RAGGI REMOTO OPZIONALE SCHEDA POTEN REMOTE X RAY BUTTON DEVIC X1 OPTIONAL Tu POWER BOAR CAVO COLLEGAMENTO B SC GL OG POTENZA LOGICA POWER CPU CABLE CPU BOARD JE T djs Nb Wee CAVO COLLEGAMENTO o o wie P LOGICA POTENZA 991 X4 CPU POWER CABLE M NEUTRO NEUTRAL NB LINEA Lg LINE X8 OD F2 gt lt gt lt 1 S gt T X17 X16 X6 lt lt JSPOSITIVO PULSANTE XT RAGGI REMOTO OPZIONALE zz REMOTE X RAY BUTTON DEVIC OPTIONAL ol INTERRUTTORE BIPOLARE
3. 1 2 E 4 5 6 e PUFSINTP Race N B COLLECARE IL FLAT DELLA TASTIERA AL CONNETTORI X RAY BUTTON Xi PIN 25 31 DELLA SCHEDA LOGICA A THE FLAT CABLES FROM THE KEYBOARD HAS TO BEI CONNECTED TO pin 25 31 OF CPU BOARD x12 X2 ISPOSITIVO PULSANTE P di RAGGI REMOTO OPZIONALE SCHEDA POTEN REMOTE X RAY BUTTON DEVICE OPTIONAL POWER BOARD CAVO COLLECAMENTO H SC 06 C POTENZA LOGICA POWER CPU CABLE CPU BOARD a Sha xi ee CAVO COLLEGAMENTO o o ms Dx gt LOGICA POTENZA CPU POWER CABLE e MM NEUTRO N1 NEUTRAL dl S LINEA I2 LINE X8 F2 Ao M O X3 C CO ue X17 X16 X6 DISPOSITIVO PULSANTE XT RAGGI REMOTO OPZIONALE za REMOTE X RAY BUTTON DEVICE OPTIONAL ol INTERRUTTORE BIPOLARE lt _ POWER SWITCH E XO L NERO BLACK NS E ALIMENTAZIONE 69 SUPP
4. Installation 5 Insert the scissor arm into the extension arm aligning the bushing fixing holes to the extension arm screws The cable and the braiding coming from the DP arm must be pulled out from the extension arm Figure 6 10 6 Mount the friction group and fix the plate using the shorter screw in the top hole Figure 6 6 Tighten the grub screw until it is frictioned but don t force the friction It has to be adjusted only if necessary 7 Insert the cable coming from DP arm inside the extension following the diagram in Figure 6 11 Rev 7 41 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 8 Run the cable inside the extension arm until they come completely out at the opposite end insert the cable itself inside the rotation pin as shown in the following figure 9 Figure 6 11 9 Check that the DP arm is perfectly inserted check that the rotation of the scissors arm inside the extension arm is the one ergonomically requested by the operator otherwise work on the frictioning mechanism 1 Figure 7 2 until you get the requested run NOTE his frictioning mechanism is also used to prevent the scissors arm from becoming detached and for this reason it must never be loosened completely 10 Assemble the tubehead see paragrap
5. R5 R26 is D mu h R80 gt Ge R12 4 WII mu E En E 3 R6 R27 C23 D uh C41 L_ mmu c29 a DAN R122 mmn o R13 OS R123 UND 2 oP Lm NR44 c C37 C4 E u 1 W R15 gt 103 24 a E CN Xl XI3 oL mw m C30 IR 104 m L dr mia x X14 R16 x 81 NE R105 Sa he Dm ms UND 106 10 c SQ C Q E O oY Lm C31 C34 N33 Gm mo R74 ORIS 5 C16 C19 0024 E351 IS oL C20 R137 R19 E o 2 ce Lm mo Cee is C44 aL R R45 R54 R55 R58 Rel HH NW a C26 IN 2523 C47 10 oL m m N35 4 m m RC x S vis Civio 139 R56 M 00107 5 MRIZ6 v4 rp Sa Grm Sm UNO vis 17 R127 R139 R37 W R61 D OS O NRS7 R38 NL R6 NI MRSS R39 NL R63 RSS R40 R64 290 F R41 UND R65 ND NR O G H Logic board Code 58613191 92 Rev Page 1 of 1 ENDOS AC ACP 120V
6. 120V DENTX SERVICE MANUAL Error messages and troubleshooting 9 5 Faults not signalled 9 5 1 The timer does not work WARNING THE TWO TIMER BOARDS CPU AND POWER ARE MATCHED IN THE FACTORY DO NOT REPLACE ONLY ONE OF THESE BOARDS SINCE THIS COULD AFFECT ON HOW THE SYSTEM FUNCTIONS The timer switch does not come on Line voltage is not present check the main line switch The timer switch does come on but there are no messages on the display Check LED H1 on the lower right part of the power board 1 If LED H1 is on check that fuse F4 630m4A is working If the fuse is burnt replace it Otherwise check the flexible cable connecting the power board and the logic board CPU Check that it is connected correctly or if there are any broken cables replace the cable if necessary 2 If LED H1 does not come on this means that the main fuse F2 6 3A 250V is disconnected replace it If fuse F4 continues disconnecting replace the timer Main fuse F2 continues to disconnect This means that there is an anomalous absorption of current the possible cause of which may be a cable reversal connecting the tubehead or the presence of a short circuit Check that the correct cables are connected to terminals X3 and X4 i e the ones with corresponding labels see paragraph 6 5 ENDOS AC ACP 120V 84 Rev 7 SERVICE MANUAL DENTX Error messages and troubleshooting e Check if there is a short circuit on
7. Method for measuring technical factors KVp value is defined as the stationary value of high voltage applied to the tube which settles on load after preheating time KV value is measured by a non invasive instrument with accuracy of over 2 to the nominal value of line voltage A direct high voltage measurement can be made only by disassembling the tubehead This operation can be executed only in the factory The anodic current value is defined as the average value of stationary current which settles on load after pre switching time The anodic current value is measured using a digital voltmeter measuring the voltage drop at the ends of the resistance from 1 kQ 1 assembled on the tubehead To take this measurement remove the side plastic plug of the tube support connect the ground voltmeter terminal on the yellow green cable clamp screw and insert the positive terminal into the contact at the end of the grey cable The digital voltmeter must be selected on DC and the relation of transformation is given by 1 mA 1V Execute an exposure of at least 1 sec The exposure time value is the time during which the value of the anodic peak current exceeds 25 of the steady state value The time taken to reach this condition is called pre heating time The measurement must be taken at nominal line voltage measuring the anodic current wave form on the 1kQ resistance and using a memory oscilloscope Exposure time measurements using non in
8. ENDOS Ref 1 2 F2 F4 F1 VSM code 6661301800 6261308800 6261308900 6661303800 6261303300 6261305100 4291415900 9461305400 9461304100 9461305800 6661310000 6661310100 6661310300 2300974400 2300938000 2300974400 4560311800 4560311900 ENDOS 120V Description Note Frictioning mechanism assy Kit PCB ENDOS AC Kit PCB ENDOS ACP X ray button holder X ray push button Flat cable X1 X4 ON OFF switch Keyboard for ENDOS AC Keyboard for ENDOS ACP Remote Timer front cover ENDOS AC front cover complete ENDOS ACP front cover complete Remote Timer front cover complete Fuse 10A F 6 3x32 Mounted on Power PCB Fuse 630mA T 5x20 Mounted on Power PCB Fuse 10A F 6 3x32 For mobile version For mobile version Fuse holder Cap for fuse holder 98 Rev 7 SERVICE MANUAL Spare Parts Rev 7 99 DZNTX ENDOS AC ACP 120V DENTX SERVICE MANUAL 2 EXTENSION ARM SCISSOR ARM Ref 1 VSM code 6661210000 8161200602 6661210400 5160402800 9461205002 6659210100 6661210200 5160249500 8161200302 8161200502 8161200402 ENDOS AC ACP 120V Spare parts Description Note Scissor arm joint covers kit DX SX Scissor arm complete Extension arm end covers kit Seeger Sliding cover of seeger E
9. N During each step of the Set up procedure storage of the selected parameter is carried out by pressing the key System enabling After pressing this key the system stores the current displayed value and moves to the next parameter to be edited M NOTE 222 change made to the selected parameter must be confirmed within 5 seconds of selection and the change of the parameter itself If the change is not confirmed during this period the system will return to the phase previous to the change itself without storing the changed value displaying again the number of parameter that must be checked edited This condition is shown by the letters ENDOS AC ACP 120V 62 Rev 7 SERVICE MANUAL DENTX Set up Within the Set up program the procedure to access and edit the value of the selected parameter is the following 1 When the display shows the message PXX press one of the keys increase or decrease to activate editing of the parameter 2 To edit the selected parameter press one of the two keys increase or decrease again until the display shows the requested value of the parameter itself Example selection of the line voltage 2 seconds Line volta ff If only one or a few parameters must be modified press more times key until the parameter you want to modify is displayed without selecting any value of the intermediate parameters Example 1 Activation of t
10. al loa s STONE R27 Sane H1 x11 4 em R14 f V V b vii C 2 U19 AS mad C C 95 ENDOS ACP AC Power board layout Code 58603666 Rev 0 Page 1 of 1 ENDOS AC ACP 120V 5 6 8 9 10 11 A LATO SALDATURE LATO COMPONENTI LATO COMPONENTI SOLDER SIDE COMPONENTS SIDE COMPONENTS SIDE B H2 H5 H4 H3 131 O 5861319x JO FID C 5861319x aa a X16 X17 d d c m D ow NES V23 R140 a an e NEM v3 roe tm S ze 46 R66 ND 9 lt 1 ir meus 02525 Ix aE R47 R67 UND k a m m H7O OL 5 Jo WR 4S ND v10 d 8129 x WR 49 R69 B 7m m oe 5 mam JE m ELLIO R97 W 1 j S pe E P R44 GI BEN C35 e E Dod R70 R76 NU R98 R109 un PE a y T 27 fal E meso R71 R77 UND 7 13 Ds MRO vag E vi R72 5 1 E m m D CI 39 R131 ps z MLN ONO NOOO 11 on an rm R9 51 3 Re4 Iso R143 Mm 246 a a Cd mm a RL Ve R 2 2 R4 R25 C15 O0 m eil 7 8 R79 c35 ro S Em
11. ENDOS AC 120V version War z A rrr GNSS Service Manual Release 17 July 2013 Rev 7 SERVICE MANUAL DENTX Revision history Revision history Manual code 6961902103 02 04 03 NEN Document approval 25 09 03 Remote timer version release ETL certification Spare Parts update Ref RDM 5641 RDM 5644 10 11 03 T Addition of X MIND identification on main label Ref RDM 5693 3 26 03 04 Notify body change for CE mark Ref RDM 5781 4 15 03 05 8 18 72 73 Editorial correction on Enabling Disabling the Ready key Modified the DP arm label Ref RDM 5938 RDM 6052 o 10 01 06 28 Dose linearity reference measurement time updated Ref RDM 6164 13 07 07 30 31 45 Removed optional chemical screws 104 108 110 Added NOTE with indication that the device is supplied as unit to be installed permanently EN60601 1 paragraph 19 Spare Parts update Ref RDM 6568 RDM 6620 7 17 07 13 6 8 31 34 New scissor arm assembling procedure from 39 to 43 Added note on spacer insertion during stand arm set 58 59 96 assembling 98 100 Identification label update Mains plug on mobile stand version no more supplied Schematics and drawing update Spare Parts update Ref RDM 7302 RDM 7532 RDM 7710 RDM 7723 RDM 7763 RDM 7797 Rev 7 ENDOS AC ACP 120V SERVICE MANUAL Revision history THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP
12. SERVICE MANUAL DENTX Spare parts 6 OPTION Ref VSM code Description Note 1 6661309500 Remote X ray button with light indicators 2 8161301002 Remote Timer kit 3 6160462003 Rectangular beam limiting device 45x35mm 4 6161405000 Extension cone for SFD 300mm 9 5661307900 Counterplate 6 6661209900 Allen wrenches kit ENDOS AC ACP 120V 106 Rev 7 SERVICE MANUAL Spare Parts Rev 7 THIS PAGE IS INTENTIONALLY LEFT BLANK 107 ENDOS AC ACP 120V SERVICE MANUAL Spare parts THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP 120V 108 Rev 7 SERVICE MANUAL D N rx EE Fixing templates 13 FIXING TEMPLATES The system is equipped with a set of templates composed of the following elements 39619100 Template for standard and remote version Rev 7 109 ENDOS AC ACP 120V SERVICE MANUAL Fixing templates THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP 120V 110 Rev 7 Cod 6961902103 7 C 0051 Dent X Corporation USA 250 Clearbrook Road Elmsford New York 10523 Phone 914 592 6100 Fax 914 592 6769
13. 42 3 4 50 5 8 1430 1730 1930 DENT FRONT VIEW 210 56 5 16 68 1 8 76 10 5 8 2262 89 1250 49 1 4 1450 ALTEZZA SUGGERITA 57 SUGGESTED HEIGHT 310 14 1 2 1080 42 1 2 20 p ay co T 30 1 2 980 38 5 8 120 4 3 4 2110 83 1370 54 Figure 4 1 Overall dimensions wall version 130 16 7 8 m 1070 54 270 10 5 8 95 2 1 2 1090 43 Rev 7 63 80 3 1 8 LARG 20 3 4 948 31 5 16 540 21 1 4 4130 1 8 143 29 1 4 Figure 4 2 Overall dimensions Mobile Stand version 29 ENDOS AC ACP 120V SERVICE MANUAL DENTX 5 5 1 Pre installation PRE INSTALLATION ENDOS AC ACP does not require any particular operations during the pre set up phase just follow the instructions given in paragraph 5 1 When ENDOS AC AC
14. LLL and the green LED Ready will start flashing simultaneously To reset the condition press the INCREASE or DECREASE button Line voltage higher than 12 1 Before executing X ray emission the system measures the supply line voltage and compares it to the value of the rated voltage If this value is lower than 12 1 the display will show message HHH and the green LED Ready will start flashing simultaneously To reset the condition press the INCREASE or DECREASE button Rev 7 77 ENDOS 120V SERVICE MANUAL Error messages and troubleshooting DENTX Exposure time of more than 4 seconds In the enabled status the system calculates the correct exposure time value to compensate fluctuations in line voltage If the time calculated in this way is greater than 4 seconds value the display will show the thus calculated value for instance 4 20 seconds and the green LED Ready will start flashing without exposure occurring To reset this condition press the INCREASE or DECREASE button DO 1 0228 In the event of a serious anomaly in the control system exposure is stopped after a maximum of 5 5 seconds and the corresponding error signal is given ENDOS AC ACP 120V 73 Rev 7 SERVICE MANUAL DENTX Error messages and troubleshooting e X ray button released before exposure end The X ray emission button is a dead man control so it must be
15. TUBE HOUSING ASSEMBLY Model 8461406612 S N 31XXYYYY Manufactured MMMM YYYY Output 70 kVp 8 mA at 120 V X ray beam lt 6 at FFD 20 cm B 0 8 IEC 336 Total filtration 22 mm Al Preheating time 100 ms X RAY TUBE Manufacturer VILLA SISTEMI m MEDICALI S p A This product complies with FDA radiation performance Model KL16 0 8 70G KAILONG China 20090 Standards 21 cfr subchapter J in effect at date of manufacture MILANO ITALY 6 DP arm label 8161200602 SN 15 YYXXXX Extension arm label 8161200X02 SN 10YYZZZZ Collimator 30 cm optional label BEAM LIMITING DEVICE Model 61614050 Diameter lt 6cm FFD 30 cm S N 40 Manufactured MMMM YYYY ENDOS AC ACP 120V Manufactured by VILLA SISTEMI This product complies with FDA radiation MEDICALI 5 performance standards 21 cfr subchapter 20090 Buccinasco J in effect at date of manufacture MILANO ITALY SERVICE MANUAL DENTX fd Description 3 2 3 2 1 3 2 2 Rev 7 Functions Models and Versions ENDOS AC ACP intraoral radiographic equipment is composed of the following parts Extension arm and scissors arm It is composed of a double articulated joint arm enabling extension horizontally and vertically The tubehead is balanced in all positions NOTE The scissors arm is designed to work correctly at a max angle of 160 so its use requir
16. diagram for mobile Code 39619010 Rev 1 Page 1 of 1 ENDOS AC ACP 120V 94 Rev 7 SERVICE MANUAL Schematics and drawings Rev 7 DENTX E S 4 S 6 LATO COMPONENTI LATO SALDATURE COMPONENTS SIDE SOLDER SIDE Q C K7 FZ L1 leg 58603666 e ee Uy 240 2 5 x4 Q Q Q x8 C11 F1 CIS Ev C12 620 1 KS V20 Reg O C R21 KANO x1 U1 Ree 022 ca X13 X18 GEL J90 BEI X10 RS C UZ 0 T R26 KO a
17. 120V Rev 7 Contents SERVICE MANUAL DENTX fs Contents 1 INTRODUCTION 1 ICO iis in the 1 2 SAFETY ASPECTS 2 Bel WA ores az cee ie kate ge ee eset anne eee 3 2 2 AAA Ay 4 2 3 Environmental risks and disposal 5 VDO ASE E 6 3 DESCRIPTION 7 Suk Id n ficaton 3 2 Functions Models and 2 2 2 22 9 S NI Extension arm and scissors ATIMN ccsccsenccssecscccevnccescesscecvcccesecsvecseuess 9 5 Too e ee eres 9 Se ae LE IUE LEM LIMEN M DUE 10 Conio ara ome E 11 3 3 1 Gk CC OL A OR 0690 DEOS 11 3 3 2 Remote timer configuration 2 12 9 09 Mobile Static COMMSUTALION EK E AEN 13 3 3 4 Remote X ray button configuration 14 4 TECHNICAL DATA 15 4 1 Method for correcting exposure 22 18 4 2 Method for measuring technical 20 4 3 Correct use of dosimeters to measure exposure 24 4 4 Curves tube features dae 23 4
18. Assembling the mobile stand and timer installation 1 Cross the two base tubes 1 into the provided cut fixing them together with the screw 2 and relevant nut 3 Do not tighten the screw completely 2 Position the base plate 4 and fix it with the four screws 5 If necessary reposition the two base tubes 1 slightly in order to align the relevant holes on the plate 3 Lock the nut 3 in order to block the base tubes 1 permanently 4 Assemble the stand column 6 on the base plate 4 with the four screws 7 5 Assemble the timer support plate 8 to the stand column fixing it with the two screws 9 WARNING The timer must be fixed to the support plate after assembling the scissors arm see paragraph 6 2 2 6 Rev 7 Remove the plastic timer cover 10 by loosening the two sealing screws 11 placed on the lower part and lifting the cover from the bottom to the top to let the upper clamps out Be careful of the cables connecting boards Fix the timer 12 onto the support plate 8 with the two screws 13 taking care to thread the supply cable and the cable coming from the scissors arm inside the hollow one 14 Check that the upper level is level using a bubble level Figure 6 5 37 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 6 1 5 X ray button The X ray button and the relevan
19. General connection diagram 2 ENDOS ACP General connection diagram for mobile 3 ENDOS AC General connection diagram 4 ENDOS AC General connection diagram for mobile 5 Power board layout 6 Logic board layout Rev 7 89 ENDOS AC ACP 120V SERVICE MANUAL Schematics and drawings THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP 120V 90 Rev 7 SERVICE MANUAL DENTX Schematics and drawings 2 2 4 6 PULSANTE RAGGI N B COLLEGARE I FLAT DELLA TASTIERA AL CONNETTORE X RAY BUTTON X1 PIN 2 32 E PIN 15 31 DELLA SCHEDA LOGICA A THE FLAT CABLES F
20. X1 logic board connector The start up flexible cable must be connected to the connector of the logic board nearest to the board itself while the possible short connector must be connected so that it ends at pin 31 Replace the keyboard if necessary Replace the two timer boards if necessary ANATOMIC The same as Error E11 above selection key pressed at start up ENDOS AC ACP 120V 82 Rev 7 SERVICE MANUAL DENTX Error messages and troubleshooting 9 4 Errors during X ray exposure ANOMALY type Checks and operations to execute signalling X ray relay does not Check that the keyboard cable is perfectly connected close within a to the X1 logic board connector The flexible cable prefixed time must be connected to the connector of the logic board nearest to the board itself while the possible short connector must be connected so that it ends at pin 31 Replace the keyboard if necessary otherwise replace the two boards of the timer X ray relay does not Serious failure of safety devices Switch the timer open within a off immediately as there may be X ray emission prefixed time 50 Check that the keyboard cable is perfectly connected msec to the X1 logic board connector The flexible cable must be connected to the connector of the logic board nearest to the board itself while the possible short connector must be connected so that it ends at pin 31 Replace the keyboard if necessary otherwise replace t
21. held pressed during the whole exposure If the button is released before the exposure ends the emission is automatically stopped this situation is shown on the display by the flashing message E P and the luminous signals on the keyboard will be off To reset this condition press increase or decrease the green LED will start blinking without exposure and the tube cooling time countdown will be shown When the cool down is over the device goes back to the IDLE state NOTE 2222 00 0 0 Before starting a new exposure replace the film to avoid a double exposure with meaningless diagnostic results Rev 7 79 ENDOS AC ACP 120V DENTX SERVICE MANUAL Error messages and troubleshooting 9 2 Errors during start up phase WARNING THE TWO TIMER BOARDS CPU AND POWER ARE MATCHED IN THE FACTORY DO NOT REPLACE ONLY ONE OF THESE BOARDS SINCE THIS COULD AFFECT ON HOW THE SYSTEM FUNCTIONS DELE ANOMALY type Checks and operations to execute signalling CHS Checksum error of This means there is a serious error in the system memories EEPROM memories so data may not be valid EPROM or RAM Switch the system off and switch it on again test 1 pressing button Ready and X ray button together This operation resets the system to pre set values If the error condition remains replace the two timer boards NOTE After a reset you must execute a full system set up X ray relay closed Serious fai
22. on the lower part of the wall plate Lift the plastic cover from the bottom and push it upwards to release it from the upper stops Be careful not to disconnect the connecting cables 2 Using 7 mm wrench adjust the frictioning mechanism nuts 1 until the movement of the arm is ergonomic 3 Reposition the plastic cover when you have finished unc Figure 7 1 ENDOS AC ACP 120V 58 Rev 7 SERVICE MANUAL DENTX Maintenance 7 2 2 Adjusting the extension arm frictioning mechanism 1 Remove the small front extension arm cover working carefully 2 Adjust the frictioning mechanism 1 Figure 7 2 using a 5 mm hexagon wrench checking the rotation of the scissors arm NOTE 9 he purpose of this frictioning mechanism is to prevent the scissors from becoming detached so it must not be loose 3 Assemble the cover again p AH Rev 7 59 ENDOS AC ACP 120V DENTX SERVICE MANUAL Maintenance 7 2 3 Adjusting the balance scissors arm e Adjusting the second arm Proceed as follows to adjust the scissors arm Adjusting the friction for small corrections picture 1 Put the arm in a horizontal position remove the plastic co ordinator covers This must be done carefully to avoid breaking the covers themselves Using a 2 5 mm hexagon wrench loosen the dowel 1 Using two 13 wrenches adjust the frictioning mechanism by r
23. the boards 1 Disconnect the tubehead cable removing the cables marked L2 X3 and N2 X4 from the corresponding X3 and X4 connectors on the power board 2 If possible connect a test resistance 6800 100W to terminals X3 and X4 check the following note 3 Select an exposure time of about 2s on the timer and emulate more exposures 3 or 4 in these conditions there is no X ray emission as the tubehead is disconnected 4 Ifthe fuse melts there is a short circuit on the power board so replace the timer o If the fuse does not melt check possible marking errors on the tubehead cable making sure to put the scissors arm in a safety condition by closing it and tying it so as not to harm people or the arm itself NOTE e If you do not have a test resistance the test may be performed in a similar way but after each exposure the error message E23 will be displayed Zero set it by switching the timer on and off again e Check that cables are labelled correctly l Close the two parts of the scissors arm and tie them together 2 Lift the protection cap of the sliding connector until you see the insertion slot of the elastic ring 3 Holding the tubehead with one hand remove the safety ring gt Remove the tubehead gently rotating it if necessary 5 Using a digital multimeter read the resistance values with scale bottom of about 1kQ or lower check that the cable marked L2 X3 is connected to the cent
24. type D film The available values are shown in the following table 0 1 0 15 0 2 0 25 0 30 0 40 The default factor is 0 2 that is the multiplying factor of the exposure time for D type film Changes must be performed according to the sensor used The factor can also be modified by the user following the relevant procedure described in the User s Manual Press button to proceed to the following step ENDOS AC ACP 120V 72 Rev 7 SERVICE MANUAL DENTX Set up 1 5 Selection of manual exposure base time This selection no more significant in the current software release sets the default value of nominal exposure time Leave the default configuration Press button to proceed to the following step 1 6 Zero setting of the exposure counter This operation resets the internal exposure counter to zero As a first step the system displays the figures relevant to thousands then it displays the figures relevant to values from to 999 To reset the counter proceed as follows 1 Press the exposure button and check that the displayed number on the display flashes 2 Within 5 seconds press the exposure button again and check that the display stops flashing and the figures displayed are 000 This shows that the figures of the thousands have been set to zero 3 Press the decrease button and repeat the above procedure for the other figures Press button to proceed to the following st
25. value e Then you subtract this offset time from all the device measurements and you proceed with comparing the time measurements displayed by the timer ENDOS AC ACP 120V 22 Rev 7 SERVICE MANUAL DENTX Technical data 4 4 Curves tube features 70 Feature of emission Rg R ZA in anodic current anodic current anodic current exposure time Rev 7 23 ENDOS AC ACP 120V D SERVICE MANUAL Curve anode cooling 150 W 120 W P A E AL ft lA fit po Curve tubehead cooling 160 FA 120 E kJ 80 Vs 40 NS mE 200 300 400 time min e ENDOS 120V 24 Rev 7 Technical data SERVICE MANUAL DENTX RENNES KL16 0 8 70G Feature of emission A Va 65kV 50kV 25 3 35 4 V Filament characteristics SERRE REESE EE NEN RN ES E RI EN EN MH EM EES Eai ee H 2 Rev 7 25 ENDOS 120V DENTX SERVICE MANUAL END Technical data Heat storage kJ time min ENDOS AC ACP 120V 26 Rev 7 SERVICE MANUAL DENTX Technical data 4 5 Reference standard Enforceable regulations 21 CEE 93 42 60601 1 EN 60601 1 2 EN 60601 1 3 EN 60601 2 7 see NOTE EN 60601 2 28 NOTE EM
26. 0 0 49 6 5 2 Electrical connection for versions equipped with Remote Timer 50 6 0 Final working 16SUS 122 9 eiie redet asn 51 6 6 1 ENDOS ACP HIR I T TTE 51 6 6 2 ENDOS AC 54 MAINTENANCE 56 Tm 56 4 2 PAAS 57 7 2 1 Adjusting the extension arm support frictioning mechanism 58 7 2 2 Adjusting the extension arm frictioning mechanism 59 7 2 3 Adjusting the balance scissors 60 SET UP 62 8 1 Display and modification 8 66 ERROR MESSAGES AND TROUBLESHOOTING 76 91 duncliondl He S a a E EE 9 2 Errors during Start up 2 80 9 3 Errors that can be reset during the start up phase 82 94 Errors during X ray 83 XE Pulk aots NEN TR 84 9251 Whe timer does TOU WOLI eere roro AREE ERSE 84 REPLACING PARTS 87 10 1 Replacing tbe tuDelead ie 87 10 2 Replacement timer Doards 88 10 3 R placin ng the Key DOS 98 10 4 Replacing the scissors Ari 98 SCHEMATICS AND DRAWINGS 89 SPARE PARTS 97 FIXING TEMPLAT
27. 9 ENDOS 120V SERVICE MANUAL Installation DENTX 6 5 2 Electrical connection for versions equipped with Remote Timer 1 Make the connection between the general switch and the terminal board of the timer using a bipolar cable plus ground section 1 5 mm 16 AWG finishing off the cable towards the timer with the provided prod terminals Fix the cable to the terminal board following the positions as shown L line N neutral Ground yellow green cable The conductors must be clamped to the timer base using the provided clip 2 Connect X3 X4 and Ground timer cables to terminal block X3 X4 and Ground respectively on wall support terminal block using the terminals provided 3 Connect tubehead cable to wall support terminal block closing cables with relevant prod terminals provided and following the position as in the table Tubehead wires Tubehead wires Terminal block colour identification A X3 L2 Black or White X4 N2 Yellow Green Ground point of frame Figure 6 16 ENDOS AC ACP 120V 50 Rev 7 SERVICE MANUAL Installation 6 6 Final working tests 6 6 1 ENDOS ACP timer 10 kV 8n DZNTX Figure 6 17 Control keyboard ENDOS ACP 1 X ray presence luminous indicator 10 2 Green Ready for X ray LED 11 3 Exposure enabling READY 12 4 Selection ke
28. Bc REMOTE X RAY BUTTON DEVICE OPTIONAL ol INTERRUTTORE BIPOLARE 5 _ POWER SWITCH XO L 4 5 NERO BLACK 3 N L2 ALIMENTAZIONE SUPPLY we D S 2 BLU CHIARO LIGHT BLUE 120Vac i E 50 60Hz Q _ ENDOS General connection diagram Code 39619005 Rev 1 Page 1 of 1 Rev 7 91 ENDOS 120V DENTX ENDOS AC ACP 120V
29. Checks and operations to execute signalling Digital Mode The same as error E06 above Button DIX pressed at start up 3 Increase button The same as error E06 above pressed at start up Decrease button The same as error E06 above pressed at start up Rev 7 81 ENDOS 120V SERVICE MANUAL Error messages and troubleshooting DENTX 9 3 Errors that can be reset during the start up phase During the start up phase the system executes a series of tests to ensure that the equipment is functioning correctly if during this phase conditions that do not concern timer safety factors are found the timer itself may continue working even with reduced functions The error signal is displayed on the display until either the Increase or Decrease key is pressed and all error conditions have been displayed This operation brings the system into IDLE ON condition and the display will show the default exposure time NOTE If more errors have been found in the same phase the errors can be displayed in sequence by pressing the Increase or Decrease key The system will reach the working condition IDLE ON after displaying the last error message EXAMPLE SIZE selection and TOOTH ANATOMIC selection pressed during the start up phase will give the following display pispLay E Ie om 30 x IDLE ON PATIENT S SIZE Check that the keyboard cable is perfectly key pressed at connected to the
30. ES 109 This publication can only be reproduced transmitted transcribed or translated into any human or computer language with the written consent of Manufacturer This Manual in English is the original version ENDOS AC ACP 120V ii Rev 7 SERVICE MANUAL Introduction DZNTX 1 INTRODUCTION NOTE his manual is updated to the product status it is sold with to guarantee the user an adequate reference for equipment use and any aspect connected with use safety The manual may not reflect any product variation without impact on operating procedures and use safety The intraoral radiographic ENDOS AC ACP produces high quality intraoral X rays thanks to reduced exposure times and the small dimensions of the focal spot ENDOS AC ACP is exclusively intended for the execution of intraoral X rays The equipment has the following features e Very good quality X rays pictures e user friendly e ergonomic design The equipment is controlled by a microprocessor that makes it possible to reproduce exposure times and is composed of the following parts e Timer ENDOS AC or ENDOS ACP equipped with wall plate e Extension arm 30 cm 60 cm or 80 cm for wall version e Scissors arm DP e Tubehead 70 kV 8 mA X ray tube with grid The purpose of this manual is to provide the user with instructions that will allow him to run the equipment safely and efficiently The equipment must be used according to the procedures in
31. LE CPU BOARD 0 on 1 CAVO COLLEGAMENTO LOGICA POTENZA 221 X4 CPU POWER CABLE o o o M NEUTRO NEUTRAL A LINEA L2 LINE X8 OD F2 gt lt gt 2 1 xg X17 X16 X6 NISPOSITIVO PULSANTE KT RAGGI REMOTO OPZIONALE ea REMOTE X RAY BUTTON DEVICE OPTIONAL 91 INTERRUTTORE BIPOLARE MONOBLOCCO _ POWER SWITCH L 4 5 NERO BLACK 3 12 ALIMENTAZIONE D E SUPPLY S N 2 BLU CHIARO LIGHT BLUE 120Vac 10A 50 60Hz D S T ENDOS AC General connection
32. LIES WITH DHHS PERFORMANCE STANDARD 21 CFR SUBCHAPTER J WARNING THIS X RAY UNIT MAY BE DANGEROUS TO THE PATIENT AND OPERATOR UNLESS SAFE EXPOSURE FACTORS AND OPERATING INSTRUCTIONS ARE OBSERVED ELECTRICAL SHOCK AZARD DO NOT REMOVE PANELS RISK OF EXPLOSION DO NOT USE IN PRESENCE OF FLAMMABLE ANESTHETICS FOR CONTINUED PORTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE DANGER CET APPAREIL DE RADIODIAGNOSTIC PEUT ETRE DANGEREUX POUR LE PATIENT ET L OPERATEUR SI LES FACTEURS D EXPOSITION ET LES INSTRUCTIONS NE SONT PAS SUIVIS RISQUE D EXPLOSION NE PAS EMPLOYER EN PRESENCE D ANESTHESIQUES INFLAMMABLES POUR ASSURER UNE PROTECTION CONTINUE CONTRE LE RISQUE D INCENDIE UTILISER UNIQUEMENT UN FUSIBLE DE RECHARGE DE MEME TYPE ET DE MEMES CARACTERISTIQUES NOMINALES Tubehead label X ray tube type Made in Italy TUBE HOUSING ASSEMBLY Model 8461406602 S N 31XXYYYY Manufactured MMMM YYYY Output 70 kVp 8 mA at 120 V X ray beam lt 6 at FFD 20 cm 0 8 IEC 336 Total filtration 22 mm Al Preheating time 100 ms X RAY TUBE Manufacturer Sy Model OCX 70 G Bologna Italy Manufactured by VILLA SISTEMI standards 21 cfr subchapter J in effect at date of manufacture 20090 Buccinasco MILANO ITALY 4 5 MEDICALI S p A This product complies with FDA radiation performance 3b Tubehead label X ray tube type KAILONG Made in Italy
33. LY aN D 9 BLU CHIARO LIGHT BLUE 120Vac 50 60Hz S na ENDOS AC General connection diagram LJ Code 39619006 Rev 1 Page 1 of 1 Rev 7 93 ENDOS AC ACP 120V DENTX SERVICE MANUAL Schematics and drawings 2 5 4 5 6 7 3 PULSANTE N B COLLEGARE IL FLAT ELLA TASTIERA Al CONNETTORE X RAY BUTTON X1 PIN 25 31 DELLA SCHEDA LOGICA A THE FLAT CABLES FROM THE KEYBOARD HAS TO BE CONNECTED TO pin 25 31 OF CPU BOARD JSPOSITIVO PULSANTE P i RAGGI REMOTO OPZIONALE M SCHEDA POTEN REMOTE X RAY BUTTON DEVICE QPTIONAL qe POWER BOARD CAVO COLLEGAMENTO B SC LGU OG C POTENZA LOGICA POWER CPU CAB
34. O Connecting point to neutral conductor Connecting point to live conductor o Protection ground Functional ground OFF equipment not connected to electricity line equipment connected to electricity line status is displayed by switching on the corresponding green symbol Focal spot according to IEC 336 REF Product identification code SN Warning see the accompanying documentation Conformity to the EC 93 42 Directive and subsequent 0051 amendments and additions C Permission key to exposure the permitted exposure ENDOS AC ACP 120V 6 Rev 7 DENTX 3 DESCRIPTION 3 1 Identification labels ml Qi 1 Q 8 No QUNM SS Rev 7 7 ENDOS AC ACP 120V DENT la ENDOS AC ACP label ENDOS xxx X MIND Line 120 V Duty cycle 1 32 7 8 A at 132 V 60 Hz Max exposure time 3 2 s Manufactured MMMMYY Y Y Model 8361306X02 SERVICE MANUAL Description 1b ETL certification label ETL LISTED CONFORMS TO y us UL STD 2601 1 2001443 CERTIFIED TO CAN CSA STD C22 2 NO 601 1 NEN N X RAY CONTROL S N 23XXYYYY 20090 Buccinasco Manufactured by e VILLA SISTEMI This product complies with FDA radiation MEDICALI S p A 0051 performance standards 21 cfr subchapter J in effect at date of manufacture MILANO ITALY 2 WARNING label COMP
35. P connections must be made into the wall it is better to make these before installing the intraoral X ray equipment considering the overall dimensions and the requested height from the floor as reported in paragraph 4 6 The supplier can give the necessary assistance and technical advice concerning pre set up construction work and the pre set up phase are at the customer s expenses Mounting methods NOTE This chapter is valid for Wall version The user does not need to assess the consistency of the wall for Stand version The installer is responsible for assessing the consistency of the wall The extraction load on each screw is 58kg for the wall version standard assembly 3 mounting screws and 110kg for the wall version single stud assembly 2 screws in line For each type of wall use the appropriate mounting method complying with the following specifications which guarantee a safety factor 4 e Wooden uprights self threading screws 8x70 4 8 provided with the installation kit e Full or concrete bricks screw anchors provided with the installation kit in cast iron M8 or chemical screws WURTH not provided e Hollow bricks chemical screws not provided A counter plate must be used with walls with a lower resistance see paragraph 6 4 1 WARNING N The Manufacturer is not responsible for any installations that do not comply with the specifications stated above ENDOS AC ACP 120V 30 Rev 7 SER
36. POWER SWITCH XO I 4 5 NERO BLACK C 2 Lig ALIMENTAZIONE E SUPPLY T F 2 BLU CHIARO LIGHT BLUE 120Vac one 50 60Hz 2 na ENDOS ACP General connection diagram for mobile Code 39619009 Rev 1 Page 1 of 1 92 SERVICE MANUAL Schematics and drawings Rev 7 SERVICE MANUAL D NT Schematics and drawings
37. ROM THE KEYBOARD HAS BE CONNECTED TO pin 2 92 AND pin 15 31 OF CPU BOARD x12 X2 ISPOSITIVO PULSANTE RAGGI REMOTO OPZIONALE JL SCHEDA POTEN REMOTE X RAY BUTTON DEVICE xi OPTIONAL TeS POWER BOARD CAVO COLLEGAMENTO B SC GU OG C POTENZA LOGICA POWER CPU CABLE CPU BOARD NOOOOOOOOO Q O O 0 00 0 OO 0 aN LLL 00000000 CAVO COLLEGAMENT ol x4 CPU POWER CABLE NEUTRO Ni NEUTRAL EN p LINEA Lg LINE X8 xl OD F2 gt lt gt lt Ni X3 1 O CO X17 X16 X6 cC JISPOSITIVO PULSANTE hi m RAGGI REMOTO OPZIONALE
38. VICE MANUAL DENTX Pre installation 5 2 Rev 7 Electric pre setting The supply source must be able to supply the following characteristic values e Single phase supply ground 120V 10 e Frequency 60 Hz e Absorbed current 7 8 Arms at 132V e Line voltage regulation 3 max at 132V A circuit breaker with overcurrent protection must be connected to the intraoral X ray equipment with the following features e Rated current 10A e Residual current sensitivity 30 mA The apparatus must be connected to a line supplied with an adequate ground in compliance with IEC regulations NOTE The device is supplied as unit to be installed permanently EN60601 1 paragraph 19 Please DO NOT connect the unit to the line using a normal socket to avoid compromising the electrical safety NOTE The maximum distances between the electric board and the entry supply terminal board must be less than 20mt and the connecting cable must be 1 5mm 16 AWG NOTE The mobile stand is supplied without the mains plug to permit the free connection at every socket Is in charge to the installer supply a mains plug compatible with the local electrical network with follow features connection 2P Earth protection minimum working voltage 120Vac minimum rated current 10A Then install the mains plug on the cable by connecting the Y G wire in the earth protection connector and the others conductors in the others free connectors The m
39. activation Ready and exposure T Selection of high voltage value tubehead Digital radiography enabling Correction factor film sensitivity Correction factor for Digital Radiolography Selection of base value of exposure time Zero setting of exposure meter Enabling of Ready button A Last exposure time storage WARNING Parameters marked with 1 in the following table cannot be changed if any changes are made there is no guarantee that the system will function correctly or that it will comply with CE 93 42 Regulations T Poi P02 P03 P04 POS P06 P07 P08 P09 P10 Pn P12 P13 P14 P15 P16 P17 P18 Rev 7 75 ENDOS AC ACP 120V SERVICE MANUAL Error messages and troubleshooting DZNTX 9 ERROR MESSAGES AND TROUBLESHOOTING ENDOS AC and ENDOS ACP timers are provided with a self diagnostics function which constantly monitors the system and its most important safety circuits In a problem occurs the system displays an error message to inform the operator Three different groups of alert messages displays are provided e errors found during the start up phase requiring the intervention of technical assistance e errors found during start up phase which since they do not concern safety factors can be reset These do not require the prompt intervention of technical assistance e errors found during the X ray exposure The first of these three error typ
40. afety screw to prevent the cover from moving excessively 3 Insert the rotation pin completely into the sliding contact fixing it with the safety ring 2 Insert the grounding clip 3 making sure that the pins enter the holes and fix it by the supplied screw 4 Lower the protection cover 1 only now is it possible to release the scissors arms 4 Put the safety screw 5 which clamps the protection cover F NOTE 7 The function of the cover is to prevent the safety ring from going out of Figure 6 13 ENDOS AC ACP 120V 44 Rev 7 SERVICE MANUAL DENTX Installation 6 4 6 4 1 Rev 7 Installation of the optional parts Counterplate A counterplate must be used on the opposite side of the wall when installing on walls that are too weak 1 Put the template 3 code 39619100 in the requested position to identify the requested mounting position on the wall Considering the overall dimensions of the equipment put the top part of the template at 1450 mm from the floor Mark the mounting points and make holes right through the wall at the marked points Remove the plastic timer cover 1 by loosening the two sealing screws 2 on the bottom part and lifting the cover from the bottom to the top to let the top clamps out Be careful with the boards connecting cables Put some threading pins 5 not provided through the wall and fix the counterplate 4 ont
41. ains plug must be in compliance with the laws and directive in force of the Country of use and report at least one quality safety mark released by a recognized Notified Body NOTE In Remote Timer version where you need to put a connecting extension not supplied the maximum distances between timer and arm must be less than 12mt and the connecting cable must 2 5mm 14 AWG 31 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 6 INSTALLATION 6 1 Wall installation ENDOS AC ACP intraoral X ray equipment is shipped pre assembled in sub assys Mechanical assembly work consists solely in assembling these units All the mechanical components are therefore adjusted before delivery not only is there no need to carry out any adjustment on these parts but it would also cause the equipment to malfunction any adjustment must be carried out by authorised personnel only ENDOS AC ACP 120V 32 Rev 7 Installation SERVICE MANUAL DENTX 6 1 1 Timer set up standard configuration To be sure that the equipment is in the correct position we recommend you put the provided template 3 code 39619100 in the requested position in this way identifying the requested wall mounting position Considering the overall dimensions of the equipment put the top part of the template at 1450 mm from the floor WARNING N The plate must be placed so that the entry hole of the supply cables corresponds with the po
42. ally selects reduced exposure times useful in the digital mode This reduction is used together with key The digital X ray selection mode is 0 disabled so touching the digital key described above does not produce any effect On the contrary if you select d 1 the digital X ray mode is activated After making this selection the system will adjust the exposure time of Anatomic selections to the digital acquisition mode multiplying the exposure time set for type D film by P14 factor Press button to proceed to the following step 71 ENDOS 120V DENTX P14 SERVICE MANUAL Set up Correction factor for film sensitivity This parameter adapts the exposure times associated to Anatomic and Size selections to the film speed used by the user The parameter P13 multiplies the set time for type D film The available values are shown in the following table 0 2 0 4 0 5 0 6 0 8 1 0 1 4 1 6 2 0 The set value must be chosen according to the film manufacturer suggestions The default factor is 1 0 The factor can also be changed by the user following the relevant procedure described in the User Manual Press button to proceed to the following step Correction factor for Digital X rays This parameter adapts exposure times associated to Anatomic and Size selections to digital acquisition modes pressing key The parameter P14 multiplies the time set for
43. arts ENDOS AC ACP 120V 2 Rev 7 2 1 Rev 7 SERVICE MANUAL DENTX Safety aspects TEM Warnings The equipment must be used according to the procedures in this manual and never for different purposes from the ones for which it has been designed Before carrying out any maintenance disconnect the equipment from the power line using the circuit breaker provided The utmost attention must be paid during the installation and calibration phase with the equipment connected to the line since components directly supplied by the input line are accessible ENDOS AC ACP is an electro medical device and for this reason can be used only under the supervision of highly qualified medical staff in possession of all the necessary knowledge about X ray protection The user is responsible for fulfilling all the legal requirements connected with the possession installation and use of the equipment itself ENDOS AC ACP is built for continuous running with intermittent load for this reason the planned duty cycle must be observed Although the equipment is designed to provide a reasonable degree of protection from electromagnetic interference according to IEC International regulations it must be installed at an adequate distance from electricity transformer rooms static continuity units from two way amateur radios and cellular phones The latter can be used only at a minimum distance of 1 5m from any part of the equipment Any instrumen
44. ble 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 0 23 0 25 0 30 0 32 0 36 0 40 0 45 0 50 0 54 0 60 0 63 0 70 0 80 0 90 1 00 1 25 1 30 1 40 1 60 2 00 2 50 3 00 3 20 Table 2 ENDOS AC ACP 120V 52 Rev 7 SERVICE MANUAL DENTX Installation WARNING The following test involves X ray emission all the safety precautions stipulated by local safety regulations must be followed 4 Puta fluorescent screen not provided to display the radiation at the end of the collimator press key and check simultaneous start up of the green indicator press the X ray button and check the simultaneous start up of the luminous indicator fit and the production of the acoustic signal for X ray emission NOTE 000 0 95 0 92 5 9525 0505 5 5225 0 When pressing the READY key the system not only enables exposure but it will also start displaying on the display the exposure time calculated according to the compensation of fluctuations of the line voltage see paragraph 4 1 If these tests are positive THE EQUIPMENT IS READY FOR USE Rev 7 53 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 6 6 2 ENDOS timer 70 kV 8mA 1 X ray presence luminous indicator 2 Green LED Ready for X ray 3 Exposure enabling READY 4 Increase key 5 Decrease key 6 Three figure disp
45. c signal of X ray emission NOTE When pressing the READY key the system not only enables exposure but it will also start displaying on the display the exposure time calculated according to the compensation of fluctuations of the line voltage see paragraph 4 1 If all these tests are positive THE EQUIPMENT IS READY FOR USE 55 ENDOS AC ACP 120V DENTX 7 7 1 SERVICE MANUAL Maintenance MAINTENANCE Generalities Like all electrical equipment this unit requires not only correct use but also regular maintenance and checks This precaution will guarantee that the equipment works safely and efficiently Periodic maintenance consists of checks performed directly by the operator and or by Technical Service The following checks are performed directly by the operator e Check that labels are intact and fixed on well e Check that there is no oil leaking on the tubehead e Check that the X ray button cable is not broken or scratched e Check that there is no external damage which might jeopardise the safety of the protections against X rays e Check the centering of the X ray beam e Check the balance of the scissors arm WARNING The operator must inform Technical Assistance immediately if there are any irregularities or damage In order to keep the initial features of the equipment we recommend a general overhaul once a year by a Technician authorised by Villa Sistemi Medicali In addition to the checks l
46. device key 2 The kit P N 6661309500 provides a way to install remotely a small group that resembles the front panel of the timer This panel give also visibility of the status of the timer by two LED s signalling the READY and EXPOSURE IN PROGRESS status NOTE The connecting cable between Timer and Remote panel passing through the wall or external must always be put inside a metal conduct to avoid any disturbance to the signals passing through the cable ENDOS AC ACP 120V 46 Rev 7 Installation SERVICE MANUAL DENTX fd 6 4 3 Rev 7 To install the cable inside the metal conduit it is easy to start the insertion from the remote button location inserting the female spade connector The cable provided in the kit must be used each wire is labeled and must be connected to the proper spade connector of the logic board so X12 to X12 X13 to X13 and so on The panel has to be fixed on the wall using the fisher type screws provided Installation of chemical screws You are recommend to use chemical screws when installing the equipment on hollow bricks 47 ENDOS AC ACP 120V SERVICE MANUAL Installation D NTX 6 5 Electrical connection WARNING For all versions the tubehead must be connected to the supply board exactly as shown so that the equipment can deliver the nominal values Connection errors give an abnormal absorption of current producing a slump in the tubehead performance and in som
47. e During exposure the operator must be at a certain distance from the X ray source at least 2 metres in the opposite direction to X ray beam During exposure the operator and the patient are the only people allowed in the room The lead aprons should be used to reduce the undesirable effect of secondary radiation on the patient ENDOS AC ACP 120V 4 Rev 7 SERVICE MANUAL DENTX Safety aspects 2 3 Environmental risks and disposal Some parts of the equipment contain material and fluids which must be disposed of in special areas designated by the local health authorities at the end of the equipment s life cycle In particular the equipment contains the following materials and or components e Tubehead hard plastic materials metal materials glass dielectric oil lead tungsten e Other parts of the equipment hard plastic materials metal materials printed circuits iron plastic materials Rev 7 5 ENDOS AC ACP 120V D NTX 2 4 SERVICE MANUAL Safety aspects Symbols in use The following symbols are used in this manual and in ENDOS besides the symbols on the keyboard see chapter 6 of User s Manual e Equipment with applied parts Type B A number of machine parts contain materials and liquids that upon completion of the machine s life cycle must be disposed of at recovery centers PEEENI established by the local health units Alternate current N
48. e cases cause the line fuses to trip NOTE In Remote Timer version where you need to put a connecting extension not supplied the maximum distances between timer and arm must be less than 12mt and the connecting cable must 2 5mm 14 AWG ENDOS AC ACP 120V 48 Rev 7 SERVICE MANUAL DENTX Installation 6 5 1 Electrical connection for standard versions 1 Make the connection between the general switch and the terminal board of the timer using a bipolar cable plus ground section 1 5 mm 16 AWG finishing off the cable towards the timer with the provided prod terminals Fix the cable to the terminal board following the positions as shown L line N neutral Ground yellow green cable The conductors must be clamped to the timer base using the provided clip 2 Connect the cable of the tubehead to the power board wiring the cables to the provided terminals and following the positions as in the table Tubehead wires Tubehead wires Power board colour identification DS X3 L2 Black or White X4 N2 Yellow Green X3 L2 X4 N2 cables must be fastened together near the corresponding faston moreover it is necessary to prevent the same cables from passing between the two boards and as a consequence the surplus part of the cables must be secured to the top of the timer with a suitable loop a Figure 6 15 Rev 7 4
49. en consecutive exposures COLL DOWN BETWEEN EXPOSURES Exposure time x K The preset time is 32 thirty two times the exposure time NOTE give the tubehead an adequate cooling time the minimum time to select is 32 Values different from the value shown can reduce the life of the tubehead and will also result in non compliance of the system to CE 93 42 Regulation Press button to proceed to the following step 1 0 Time between system enabling and exposure This is the maximum time in seconds available to the operator between enabling obtained pressing key and starting the exposure This parameter varies from 10 to 30 seconds 1 second a step The preset value is 1 5 seconds can be modified using the increase or decrease Keys Press button to proceed to the following step ENDOS AC ACP 120V 70 Rev 7 SERVICE MANUAL DENTX fd Set up P11 P12 Rev 7 Selecting the tubehead version Parameter not to be changed This value makes it possible to select the suitable value according to the high voltage value of the connected tubehead The preset value is 70 ENDOS AC ACP NOTE To guarantee compliance with CE 93 42 Regulation the selected value must conform to the one defined above Press button to proceed to the following step Enabling digital radiology This selection makes it possible to activate digital X ray mode which if enabled automatic
50. ep Rev 7 73 ENDOS AC ACP 120V SERVICE MANUAL Set up DENTX 1 7 Enabling Disabling the READY button The value of the parameter must be A 1 READY button enabled If P17 is configured at the exposure enabling is prevented and the system is always ready for emission the ready for X ray LED is always on NOTE When the Ready button is disabled the display will show the corrected exposure time see paragraph 4 1 only during exposure or holding the X ray button pressed at the end of it Press button to proceed to the following step 1 8 Last exposure time storage This selection enables disables storage of the last Anatomic and Size selection or of the exposure time executed 1 stores the last exposure time 0 does not store the last exposure time Press increase and decrease button to select the requested value If you select r 1 when switching the system on again the last selected time before switching off the equipment appears Press button to stop set up operations ENDOS AC ACP 120V 74 Rev 7 SERVICE MANUAL DENTX Set up The following table displays the values of the programmable parameters Selection of line voltage Selection of the tubehead supply 1 mode T derived from label Pre ignition time ostobehead 1 selection of compensation exposure time selection of compensation pre ignition time Selection of break factor Time between
51. es found during start up phase disables the system so to avoid any action The disabling status can be reset only by switching the system off and on again or by following the instructions described in the following pages The codes corresponding to the error messages range from E01 to E09 Error conditions which can be reset may affect some unimportant system functions while still leaving others possible The codes corresponding to the error messages range from E11 to E12 Failure conditions found during X ray exposure phase can take the system to a condition where a following exposure is not allowed This type of error is shown by messages ranging from E20 to E25 NOTE Isolated error message signals ex Signals changing each time can be caused by false contacts on the flexible connection cable between the CPU board and power board Check that the flexible cable connecting the X1 power board connector to the corresponding X4 connector of the logic board CPU is connected correctly and functions well checking the total connection Replace the cable if necessary ENDOS AC ACP 120V 76 Rev 7 SERVICE MANUAL DENTX Error messages and troubleshooting 9 1 Functional messages e Line voltage lower than 12 1 Before exposure the system measures the supply line voltage and compares it to the value of the rated voltage If this value is lower than 12 1 the display will show message
52. es a flare angle of less than 160 Moreover a horizontal extension arm can be added available in various sizes to meet all requirements Tubehead The 70 kVp voltage the 8 mA current and the use of a tube with grid reduce exposure times and the quantities of X rays absorbed by the patient The radiogenic equipment is provided with a collimator with 20 cm focus skin distance and a 6 cm X ray emission diameter at the exit of the cone The tubehead is connected to the arm by a guide which allows 360 horizontal rotation and 290 vertical rotation Two alternate X ray tubes can be used both have the same characteristics and provide the same performance The tubehead assembled with different X ray tubes are interchangeable so long as pre heating time is set to the proper value indicated on the tubehead label see chapter 8 9 ENDOS 120V SERVICE MANUAL Description DENTX 3 2 3 Timer The name of ENDOS AC ACP depends on the type of timer in use ENDOS ENDOS ACP is digital timer with microprocessor where exposure times can be selected both manually and automatically With automatic selection there is a choice of 30 pre set times depending on the patient s size small medium or large and the type of tooth and acquisition mode film digital There are 33 fixed manual selection times that vary from a minimum of 0 02 seconds to a maximum of 3 20 seconds The main feature of this timer is
53. exposure time value is 2 seconds 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 0 23 0 25 0 30 0 32 0 36 0 40 0 45 0 50 0 54 0 60 0 63 0 70 0 80 0 90 1 00 1 25 1 30 1 40 1 60 2 00 2 50 3 00 3 20 Press button 6 to proceed to the following step ENDOS AC ACP 120V 68 Rev 7 SERVICE MANUAL DENTX fd Set up PO Selecting the compensation factor value of exposure times This parameter must be selected according to the nominal value of the line voltage as in the following table 120V 005 F 1NOTE 0 guarantee compliance with 93 42 Regulation the selected value must conform to the one defined above Press the button to proceed to the following step POS Selecting the compensation factor of pre heating time This parameter must be selected according to the nominal value of line voltage as in the following table Line voltage P8 120V 001 NOTE 50 0 0 guarantee compliance with 93 42 Regulation the selected value must conform to the one defined above Press button to proceed to the following step Rev 7 69 ENDOS AC ACP 120V SERVICE MANUAL Set up DENTX 09 Tubehead cooling time This is the value of parameter value selectable between and 80 which multiplied by the current value of exposure time calculates the value of the cool down time betwe
54. f adjustment of the friction is not enough you can adjust the spring to optimise the balance 1 Rev 7 Put the arm in a horizontal position remove the plastic co ordinator covers This must be done carefully to avoid breaking the covers themselves Insert 6 mm hexagon wrench about 200mm long contained in the kit P N 6661209900 This wrench must rotate clockwise if the arm tends to go down compared to the release position anticlockwise if it tends to go up When you have finished the adjustment reposition the plastic covers Figure 7 4 61 ENDOS 120V SERVICE MANUAL Set up DENTX 8 SET UP When replacing the timer electronics or the tubehead ENDOS AC ACP requires an updating of the configuration parameters achieved by carrying out the PARAMETER SET UP procedure 1 NOTE During the SET UP procedure the LEDs of the keyboard are not activated Starting from OFF STATUS switch the unit on pressing the main switch I O on the lower part of the timer and wait completion of the initial check procedure While the system displays the software version for instance 4 00 press simultaneously keys increase and decrease y for about 5 seconds until the words PrO are displayed for about 2 seconds After 2 seconds the words Pr disappear and the first programmable parameter is shown on display WARNING
55. factor and the line voltage is shown in the following picture for equipment configured to work at 120V Multiplication factor of exposure time to 1 75 the variation of line voltage 1 5 1 25 4 0 75 0 5 108 114 120 126 132 Line voltage The following table allows to establish pre indicated times and final real exposure times as a function of pre selected time and line voltage variation line voltage 108V 112V 116V 124V 128V 132V corrected exposure time on the basis max min exposure corrected exposure time on the basis max min exposure corrected exposure time on the basis max min exposure corrected exposure time on the basis max min exposure corrected exposure time on the basis max min exposure corrected exposure time on the basis max min exposure time due to of current time due to intrinsic time due to of current time due to of current intrinsic of current time due to of current time due to of current E DENEN i46 posposwe 08 198 esee beerse no exposure the timer does not allow exposure times longer than 4 sec Rev 7 19 ENDOS AC ACP 120V DENTX 4 2 kV mA SERVICE MANUAL Technical data
56. from the bottom to the top to let the upper clamps out 4 Fixthe timer to the wall using the relevant screws 4 ni 9 t9 lea C ahs 1 6 3 5 Remove the plug 5 positioned in the hole for the extension arm and put it on the Remote Timer box Later start assembling the extension arm following the instructions at paragraph 6 1 1 Rev 7 35 ENDOS AC ACP 120V DENTX SERVICE MANUAL Ss Installation 6 1 3 Timer set up Remote Timer configuration 1 To be sure that the equipment is in the correct position we recommend you put the provided template 3 code 39619100 in the requested position in this way identifying the requested wall mounting position Considering the overall dimensions of the equipment put the top part of the template at 1450 mm from the floor 2 Mark the mounting points and make the relevant holes with the diameter corresponding to the chosen screws 3 Remove the plastic timer cover 1 by loosening the two sealing screws 2 placed on the bottom part and lifting the cover from the bottom to the top to let the upper clamps out Be careful of the cables connecting the boards 4 Fix the timer to the wall using the provided screws 4 Figure 6 4 ENDOS AC ACP 120V 36 Rev 7 Installation SERVICE MANUAL DENTX 6 1 4
57. fted leaving the safety ring in View 2 Holding the tubehead in one hand remove the safety ring Remove the tubehead gently rotating it if necessary 4 Assemble the new tubehead proceeding then with the operations already described for tubehead assembly paragraph 6 3 NOTE 22 2202 00 0 00 0 After replacing the tubehead it may be necessary to reset the counter of executed exposures see paragraph 8 1 parameter P16 The system is certified to operate with two tubeheads models mounting different X ray tubes When replacing the tubehead check that the pre heating time in set up PO3 is configured to the same value reported in the tubehead label Rev 7 87 ENDOS 120V SERVICE MANUAL Replacing parts DENTX 10 2 Replacement timer boards NOTE he timer boards matched in the factory and therefore must be replaced as a couple To access the boards refer to the set up procedure 10 3 Replacing the keyboard Replacing the keyboard consists in replacing the adhesive membrane remove the timer covering panel remove the old membrane carefully after disconnecting the cables and clean the surface where the membrane was attached NOTE e Do not use solvent but only alcohol Attach the new membrane restoring connections 10 4 Replacing the scissors arm Follow instructions in the spare arm kit ENDOS AC ACP 120V 88 Rev 7 11 SCHEMATICS AND DRAWINGS 1 ENDOS
58. gt Referenc standard quU dux cies anes 27 4 0 Overall 29 5 PRE INSTALLATION 30 ol Mounting mets quod ni desve eu eo cep un EEAS 30 SEP MEDI Cie CN aoe m MTM 31 6 INSTALLATION 32 AAR S UAW 92 6 1 1 Timer set up standard configuration 33 6 1 2 Wall support set up Remote Timer 35 6 1 3 Timer set up Remote Timer configuration eese 36 6 1 4 Assembling the mobile stand and timer installation 37 P EE C DO E E 38 SI 39 6 2 1 Assembling the scissors arm DP arm 39 6 2 2 Assembling the stand arms 43 Rev 7 i ENDOS AC ACP 120V DENTX 10 11 12 13 SERVICE MANUAL Contents 0 TubDohead serrie ER E EE EREE ATENE E 44 6 4 Installation of the optional 45 6 4 1 CO OTP e te eT ree eT ee MESE aD EPI MISI DRE eee ae eee 45 MEM Remote Aray 46 6 4 3 Installation of chemical screws s croi ec toro er 47 6 9 Electrical CONNECTION ro 48 6 5 1 Electrical connection for standard
59. h 6 3 11 Remove the scissors arm safety clamp and check the ergonomics of its movement again otherwise adjust the frictioning mechanism again 1 and or the tension of the arm balance springs see paragraph 7 2 3 12 Assemble the front covers of the extension arm included in the mounting hardware packaging ENDOS AC ACP 120V 42 Rev 7 SERVICE MANUAL DENTX Installation 6 2 2 Assembling the stand arms set Assemble the scissors arm there is no extension arm in this configuration being careful to insert the spacer 1 p n61613056 into the rotation pin NOTE _ 22 222 0000 000 00000 Be sure that the two pins are inserted into the spacer as showed in the drawing NOTE Keep the arm perfectly orthogonal to the pole when inserting the extension arm rotation pin Do not release the arms of the scissors arm from their sealing packing bes f Figure 6 12 Rev 7 43 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 6 3 Tubehead assembly 1 Insert the protection cover 1 into the D P arm until you can see the insertion slot of the safety elastic ring 2 Hold it up and insert the ring itself partially 2 Insert the rotation pin of the tubehead onto the sliding contact for about half of its length and put the elastic ring 2 into the two transversal cuts NOTE The elastic ring must be inserted on the same side as the s
60. he cooling break PO9 2 Correction factor film sensitivity P13 The two following pages show the sequence of actions necessary to modify the programming of the two parameters 9 without displaying the other parameters QUICK PROGRAMMING SEQUENCE Bo 0092911400 aoa Rev 7 63 ENDOS AC ACP 120V SERVICE MANUAL Set up DENTX d ER it continues on the following page ENDOS AC ACP 120V 64 Rev 7 D NTX SERVICE MANUAL Set up AUN f a o ENDOS 120V Rev 7 SERVICE MANUAL Set up DENTX 8 1 Display and modification of parameters PO1 Selecting line voltage The selected value in this section is useful only as an internal reference for the correction of the exposure time according to the variation of line voltage The selectable values are 115Vac 120Vac 220Vac 230Vac and 240Vac always make sure that the selected value corresponds to the value of the system voltage supply as specified in the labels NOTE When the selected value of the line voltage does not correspond to the value shown on the identification label of the system the system itself cannot be defined as complying with CE 93 42 Regulation After making the suitable selection if necessary press button in this case PO1 after pressing the button the display will show intermittently the value of the line vol
61. he technology employed in AC intraoral equipment where the line voltage is applied simultaneously to the high voltage transformer and to the filament of the Rx tube causes the two following deviations according to EN 60601 2 7 ed 1998 requirements a b Rev 7 The exposure time cannot be defined with an accuracy lower than the length of a 50Hz line period 20ms and than two 60Hz line periods 16 6ms In fact exposure time is defined as the interval between the instant when the anodic current exceeds 25 of the steady state value and the instant when it goes below this value It is evident that in the anodic current rise current see Figure paragraph 4 3 you have the uncertainty of 1 peak in determining the first peak which exceeds 2590 of the steady state anodic current When running at 60Hz you must also consider that selectable times in the timer are not always multiples of the line period This introduces a further approximation that the timer executes automatically to carry the selected time to the nearest multiple of the line period EN 60601 2 7 ed 1998 regulation defines precisely that for each pair of exposure times in ENDOS AC ACP equipment is the only selectable parameter with a near relation but lower than 2 dose linearity is calculated by the formula Dose t1 t1 Dose t2 2 lt 0 2 Dose tl 2 Again due to the characteristic the anodic current rise curve equipment the linea
62. he two boards of the timer The triac controlling Check that the keyboard cable is perfectly connected X ray emission does to the X1 logic board connector The flexible cable not close within a must be connected to the connector of the logic board prefixed time 50 nearest to the board itself while the possible short msec connector must be connected so that it ends at pin 31 Replace the keyboard if necessary otherwise replace the two boards of the timer The triac controlling No load connected to the board check the correct X ray emission does and complete insertion of tubehead wires Check for not open within a possible flat cable between power and logic boards prefixed time 50 not well inserted connected msec If the cable is broken replace it otherwise replace the Power and Logic boards X ray button results Check that the X ray button is closed and replace it pressed at the if necessary system enabling Intervention of The emission has been stopped by the hardware safety intervention of the hardware safety circuit circuit backup timer Emission may start again immediately at start up so any maintenance action must be carried out with the tubehead disconnected Check possible damages to the flexible cable connecting the two boards and replace it if necessary Switch the system on again if the anomaly continues message 02 will be displayed replace the two timer boards Rev 7 83 ENDOS
63. ied as kit P N 6661309500 ENDOS AC ACP 120V 14 Rev 7 SERVICE MANUAL DENTX Technical data TECHNICAL DATA m Technical features Equipment ENDOS AC ACP VILLA SISTEMI MEDICALI Via delle Azalee 3 20090 Buccinasco MI ITALY Manufacturer Class P with type B applied parts EN 60601 1 classification Protection level Standard Apparatus IP20 120 V 10 60 Hz 7 8 Arms impulsive 132 V 920 VA impulsive 120 V lt 3 10 AF from 0 02 to 3 2 s in 33 steps Line voltage Line frequency Max absorbed current Power consumption Line voltage regulation Main fuse D Pre set exposure times Automatic selection 30 pre set times only for ENDOS ACP Exposure time accuracy of corrected 10 or 32 ms time see paragraph 4 1 whichever is greater see note paragraph 4 5 Pre selected exposure time accuracy The absolute maximum deviation can be this is the value of timer setting 100 150 when line voltage changes pre selected by the operator within rated voltage range it includes inaccuracy and correction due to line voltage changes see paragraph 4 1 Circuit type Single phase self rectifying with grid control 70 kVp mA 15 kV selection high voltage value Tubehead current KV accuracy Tubehead anode current accuracy 2mA 2 26 345x195x100 mm Max exposure time Timer dimension This ts the actual exposure time pre indicated on the
64. ing sequence inside the timer there is a voltmeter which takes a constant reading of the line voltage while the user selects the desired exposure time After the user has chosen the exposure time he knows from experience to be the best for the type of X ray he is going to take the user himself presses the key enabling exposure and the timer shows on the screen the correct time that will be used for the exposure in progress time that the timer itself has calculated according to the value of the line voltage measured an instant before pressing the key of the exposure permission NOTE ENDOS AC and ENDOS ACP timers work in step with the line frequency so the calculated time is always rounded off to the multiple of the line frequency itself The correct exposure time shown once the timer has been enabled by the Ready key and during the execution of the X ray is the time actually used by the equipment it is calculated applying a correction factor to the time selected by the user based on the empirical law relating to the optical density of the film with the high voltage peak value and consequently with the line voltage NOTE If the Ready key has been disabled in system configuration the display will show the corrected exposure time only during exposure or holding the X ray button pressed at the end of it ENDOS AC ACP 120V 18 Rev 7 SERVICE MANUAL Technical data DENT The qualitative relation between the multiplication
65. int from which these cables exit the wall The installer will assess the consistency of the wall taking into consideration the screw extraction load specified in paragraph 5 1 2 3 Mark the mounting points and make the respective holes with a diameter corresponding to the chosen screws Remove the plastic timer cover 1 loosening the two sealing screws 2 placed on the lower part and lifting the cover from the bottom to the top to let the upper clamps out Be careful of the board connection cables 4 Fixthe timer to the wall using the relevant screws 4 N ca Figure 6 1 Later start assembling the extension arm following the instructions as follows Rev 7 33 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 1 Insert the extension arm into the arm support block which is an integral part of the wall support plate NOTE You must Keep the arm orthogonal to the plate to be able to insert the shaft into the bush placed inside the support 2 Check that the arm is level using a bubble level if it is not level it is better to release the mounting screws on the wall plate and make the necessary adjustments 3 The horizontal check must be performed in the three orthogonal positions arm parallel to the wall on the right on the left and perpendicular to the wall itself 4 At the end of the above operations assemb
66. isted above the Service technician may also perform checks on e The adjustment of extension and DP arm frictioning mechanism e The adjustment of the DP arm balance springs if necessary WARNING Only technicians authorised by the Manufacturer are allowed to carry out adjustment during maintenance operations ENDOS AC ACP 120V 56 Rev 7 SERVICE MANUAL DENTX Maintenance 7 2 Arm adjustment 1 NOTE 00 0 9 5 005 252 42 0 It is not necessary to dismantle the tubehead to adjust the arms If you think that this operation is useful or necessary before removing the tubehead put the scissors arm in the closed position and tie it up using the safety clamp to prevent harming people or the arm itself The arms may need adjusting in the following cases e the movement of the extension arm combined with the scissors arm is not considered to be ergonomic by the end user in this case it will be necessary to adjust the extension arm frictioning mechanism e the scissors arm is not perfectly balanced in this case you must adjust the springs Rev 7 57 ENDOS AC ACP 120V SERVICE MANUAL Maintenance DENTX 7 2 1 Adjusting the extension arm support frictioning mechanism The device to adjust the arm support frictioning mechanism is placed on the front of the wall support To make this adjustment you must proceed as follows 1 Remove the plastic timer cover by loosening the two sealing screws placed
67. lay Figure 6 18 Control keyboard ENDOS AC All the functions of the equipment are set to standard values and tested in the factory during the final test Some functions however can be adjusted by Technical Service only after setting up or according to particular needs see chapter 8 After connecting the equipment to line voltage perform the following functional tests 1 Turn the general switch placed in the lower part of the timer to ON and check that the switch light comes on and the control panel is activated 2 By key Ve increase or y decrease check that the display shows the different manual exposure times as in the following table 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 0 23 0 25 0 30 0 32 0 36 0 40 0 45 0 50 0 54 0 60 0 63 0 70 0 80 0 90 1 00 1 25 1 30 1 40 1 60 2 00 2 50 3 00 3 20 Table 3 ENDOS AC ACP 120V 54 Rev 7 SERVICE MANUAL DENTX Installation Rev 7 WARNING The following test involves X ray emission all the safety precautions stipulated by local safety regulations must be followed 3 Puta fluorescent screen not provided to display radiation at the end of the collimator press key and check simultaneous i F CNN Be start up of the green LED press the X ray button and check simultaneous start up of the luminous indicator and the production of the acousti
68. le the extension arm frictioning mechanism block 1 this frictioning mechanism is included in the mounting hardware packaging code 61613018 5 Assemble the arm rotation stop screw 2 M5x6 in the hole provided on the shaft this screw is supplied with the frictioning mechanism NOTE The purpose of the frictioning mechanism and the rotation stop pin is to prevent the extension arm from becoming detached al uit Figure 6 2 ENDOS AC ACP 120V 34 Rev 7 SERVICE MANUAL DENTX Installation TEM 6 1 2 Wall support set up Remote Timer configuration 1l To be sure that the equipment is in the correct position we recommend you put the provided template 3 code 39619100 in the requested position in this way identifying the requested wall mounting position Considering the overall dimensions of the equipment put the top part of the template at 1450 mm from the floor WARNING N The plate must be placed so that the entry hole of the supply cables corresponds with the point from which these cables exit the wall The installer will assess the consistency of the wall taking into consideration the screw extraction load specified in paragraph 5 1 2 Mark the mounting points and make the respective holes with a diameter corresponding to the chosen screws 3 Remove the plastic timer cover 1 loosening the two sealing screws 2 placed on the lower part and lifting the cover
69. lure of safety devices Check the possible at start up disconnection of the flexible cable between the two boards or its correct connection If the cable is broken or damaged replace it otherwise replace the two timer boards Tubehead supplied Switch the system off immediately as X ray during start up emission may be present Check the possible disconnection of the flexible cable between the two boards or its correct connection If the cable is broken or damaged replace it otherwise replace the two timer boards X rays button Check if the X ray button is closed and replace it if it Main X ray button is otherwise replace the two timer boards closed at start up Remote X ray Check if the X ray button is closed and replace it if it button closed at is otherwise replace the two timer boards start up Both X ray buttons Check if both X ray buttons are closed and replace closed at start up them if they are otherwise replace the two timer boards Ready button Check that the keyboard cable is perfectly pressed at start up connected to the X1 logic board connector The flexible cable must be connected to the connector of the logic board nearest to the board itself while the short connector must be connected so that it ends at pin 31 Replace keyboard if necessary Replace the two timer boards if necessary ENDOS AC ACP 120V 80 Rev 7 SERVICE MANUAL DENTX Error messages and troubleshooting ANOMALY type
70. o the back of the wall after positioning the timer QUPD Figure 6 14 45 ENDOS AC ACP 120V SERVICE MANUAL Installation DENTX 6 4 2 Remote X ray button NOTE Whatever remote X ray button installation is implemented the front panel of the timer must be visible from the remote button location to allow the user to see technical factors before starting an exposure There are two possible alternatives for remote X ray button 1 A door bell X ray button can be installed following the instruction here below NOTE The connecting cable between Timer and Remote X ray button passing into the wall or external must always be put into a metal conduct to avoid any kind of disturbance to the signals passing through the cable The cable can be a maximum of 15 meters long and consequently the distance between Timer and X ray button must be shorter than this length The connecting cable must have a 1mm minimum section and must be connected to the X12 and X13 connectors on the logic board CPU The remote X ray button not provided by Villa Sistemi Medicali must be connected to the timer Safety regulations stipulate that a button enabled by an appropriate safety key must be used NOTE ENDOS AC ACP is equipped with an exposure enabling key In spite of this we suggest you set up an external X ray button enabled by an appropriate safety
71. on as a small quantity of radiation reaches the measuring chamber with the result that they take longer times than the ones determined by the invasive method applied by the manufacturer Consequently calculations obtained by these non invasive methods can erroneously lead to the conclusion that the equipment timer is not accurate Actually the difference is connected to the method adopted in measuring the exposure time 21 ENDOS AC ACP 120V SERVICE MANUAL Technical data DENTX By using a tube with grid it is possible to reduce to the minimum the time required for the anodic current and as a consequence the dose adjustment to reach the steady state so there is very little difference between the exposure time measurement using the invasive and the non invasive method Corrective actions A practical method can be applied to get round the problem which can be described this way e graph you report the values of times measured using the equipment compared with the ones displayed by the timer automatically corrected for the line variations the dots of the graph are interpolated with a straight line if possible by the least square method or more simply in a graphic way e You determine the intercept on the Y axis of this straight line this can be assumed as the time value that the non invasive device adds to each measurement due to the radiation which reaches the device before the anodic current is 2596 of its maximum
72. on the label of the tubehead it is important to verify that the value in set up is exactly the same reported on the tubehead label The default value is 0 1 0 seconds NOTE In order to guarantee that the system functions correctly and observation of CE 93 42 Regulations parameter PO3 must be the value reported on the tubehead label a pre heating time Press button to proceed to the following step Rev 7 67 ENDOS AC ACP 120V SERVICE MANUAL Set up DZNTX P04 Booster Time Parameter not to be changed The value must be 0 04 NOTE Selecting a different value from the one shown will change the working conditions of the system and relevant selection data For this reason parameter PO4 must not be changed Press button to proceed to the following step P05 Minimum exposure time This selection allows the choice of the minimum exposure time expressed in seconds The minimum exposure time can be chosen from the following times 0 02 0 04 0 06 0 08 0 10 0 12 0 14 0 16 0 18 0 20 The minimum exposure time is 0 02 seconds Press button to proceed to the following step P06 Maximum exposure time This parameter makes it possible to limit the value of the maximum exposure time settable by the user up to a value of 2 seconds e selecting 0 all exposure times shown in the following table are settable by the operator e selecting 1 the maximum
73. otating one of the wrenches 1 4 of a turn each time When you have finished the adjustment tighten the previously loosened dowel and reassemble the plastic covers Adjusting the spring picture If adjustment of the friction is not enough you can adjust the spring to optimise the balance 1 ENDOS AC ACP 120V Put the arm in a horizontal position remove the plastic co ordinator covers This must be done carefully to avoid breaking the covers themselves Insert a 6 mm hexagon wrench about 200mm long contained in the kit P N 6661209900 This wrench must rotate clockwise if the arm tends to go down compared to the release position anticlockwise if it tends to go up When you have finished the adjustment reposition the plastic covers Figure 7 3 60 Rev 7 SERVICE MANUAL Maintenance DZNTX e Adjusting the first arm If the first arm also needs to be adjusted Adjusting the friction for small corrections picture A 1 N Close the arm scissors arm remove the plastic co ordinator covers This must be done carefully to avoid breaking the covers themselves Using a 2 5 mm hexagon wrench loosen the dowel 1 Using two 13 wrenches adjust the frictioning mechanism by rotating one of the wrenches 1 4 of a turn each time When you have finished the adjustment tighten the previously loosened dowel and reassemble the plastic covers Adjusting the spring picture B I
74. ral terminal of the sliding contact male placed in the arm this is tested if the multimeter reads a very low resistance value near zero if you measure a high value generally shown as this means an exchange of labels so you must connect cable L2 X3 to X4 and vice versa or exchange the two labels and connect as usual 6 Check that the two cables are not in short circuit by reading the resistance which must be infinite between the two cable terminals on the same side and between the terminals and the ground cable Rev 7 85 ENDOS AC ACP 120V SERVICE MANUAL Error messages and troubleshooting DZNTX e Faulty tubehead If previous tests give positive results correctness of cable marking and absence of short circuits in the tubehead cable a possible cause is a short circuit inside the tubehead Replace the tubehead using the procedure described in the provided section of the manual ENDOS AC ACP 120V 86 Rev 7 DENTX 10 REPLACING PARTS 10 1 Replacing the tubehead WARNING N Before proceeding with replacing the tubehead close and tie the two sections of the scissors arm together Failure to do this will not only cause serious problems when assembling the system but may also harm both the installer and the arm itself 1 Remove the safety screw and lift the protection cap of the sliding connector until you can see the insertion slot of the elastic safety ring In this way the protection cap is li
75. rity limit is not respected for very short exposure times In fact it is evident that for any exposure time a basal dose is emitted produced in the period between the application of voltage to the tubehead and the time when anodic current exceeds 25 of steady state assumed as the exposure time start 27 ENDOS 120V SERVICE MANUAL Technical data DENTX Moreover the interval between exceeding 25 of the steady state anodic current and reaching running point the anodic current grows and with it the dose rate making the emitted dose non proportional to the exposure time The use of a tube with grid substantially limits the basal dose and also the dose emitted at the start of the exposure time before the anodic current reaches the stationary status In ENDOS AC ACP equipment typically the basal dose and the dose emitted in the interval when the anodic current varies between 25 of the running value and stationery point is very low thanks to the tube with grid and this makes it possible to guarantee that the linearity requirements contained in EN 60601 2 7 ed 1998 are respected for exposure times starting from 60118 ENDOS AC ACP 120V 28 Rev 7 SERVICE MANUAL Technical data 4 6 Overall dimensions 120 130 5 1 8 300 600 800 11 3 4 23 5 8 21 12 185 1085 1285 31
76. t support are in the box with an installation kit that gives two options e mounting on the timer side remove the small plug placed on the right hand wall of the timer box and screw the relevant support e mounting on the wall use the screw provided with the support to fix the support itself to the wall in the requested position ENDOS AC ACP 120V 38 Rev 7 SERVICE MANUAL DENTX Installation 6 2 Assembling the scissors arm 6 2 1 Assembling the scissors arm DP arm 1 Remove the friction group fixing plate fixed to the extension arm with three screws scissor arm side Take note that the upper screw is shorter than the other two and has to be mounted in the same position Friction group 4 Ne Fixing plate Figure 6 6 2 Remove also the friction taking care not to loose the spring washer Here following is indicated the right sequence of the washers Figure 6 7 Rev 7 39 ENDOS AC ACP 120V SERVICE MANUAL Installation DZNTX 3 Remove the fixing bushing This operation will permit an easier insertion of the scissor arm group into the extension arm hes iD CAE Figure 6 8 4 Insert the extension arm pin in the bushing during insertion take care to the O Rings present in the bushing The friction group fixing holes must be toward tube head support Figure 6 9 ENDOS AC ACP 120V 40 Rev 7 SERVICE MANUAL DENTX
77. tage currently read by the internal voltmeter precision 1 5 in this way the system enables the operator to verify possible fluctuations in the line voltage DATA STORING Am B BLINKING DIGITAL VOLTMETER The following operations make it possible to calibrate the value read by the voltmeter inside the timer using a digital multimeter DVM 1 Connect a digital voltmeter DVM which can measure actual RMS values to the supply line entry connector and select it to read in alternate voltage AC 2 Press simultaneously keys 62 for at least two seconds This operation resets any offset values already in the system to zero ENDOS AC ACP 120V 66 Rev 7 SERVICE MANUAL DENTX Set up 3 Press one of keys and or 62 so that the readings of the two voltmeters the internal one to the system and DVM are the same 4 When the requested value is reached press button to confirm the datum At this point the display will go to the second step of the set up procedure displaying the message P02 02 Selecting the tubehead supply method Parameter not to modify The value must be 1 Selecting a different value from the one shown will change the working conditions of the system and relevant selection data For this reason parameter PO2 must not be changed Press button to proceed to the following step Pre heating time This parameter is reported
78. tation or equipment for professional use located near ENDOS AC ACP must conform to Electromagnetic Compatibility regulations Non conforming equipment with known poor immunity to electromagnetic fields must be installed at a distance of at least 3m from ENDOS AC ACP and supplied by a dedicated electric line ENDOS AC ACP must be turned off when using electro cautery or similar equipment in the vicinity of the equipment itself The equipment is not designed to be used in the presence of anaesthetic mixtures inflammable with air oxygen or nitrous oxide WARNING For safety reasons it is forbidden to overload the extension arm or the scissors arm in an anomalous way for instance by leaning on it 3 ENDOS AC ACP 120V D NTX 2 2 SERVICE MANUAL Safety aspects Protection from X rays Although dosage given by modern X ray equipment is low on average during the execution of the exposure the operator must take all precautions to protect the patient and himself in compliance with the regulations in force WARNING Protection from X ray radiation is regulated by law The equipment must be used by specialised personnel only a b d e The film or the digital sensor must be put into the patient s mouth manually or using the appropriate supports If possible it must be held by the patient himself During X ray exposure the operator must not come into contact with the tubehead or the collimator con
79. that it has an automatic exposure time compensation for drift of nominal voltage within 10 e ENDOS AC ENDOS AC has the same features as the ENDOS ACP timer excluding automatic and digital anatomic selection It has manual exposure time selection only NOTE remote X ray button configuration can be made outside the exam room This can be a pure door bell X ray button or a device which also show status of the unit Ready and Exposure in progress ENDOS AC ACP 120V 10 Rev 7 SERVICE MANUAL DENTX Description 3 3 Configurations 3 3 1 Standard configuration Figure 3 1 Tubehead Scissors arm Extension arm Timer N m X ray button Rev 7 11 ENDOS AC ACP 120V DZNTX SERVICE MANUAL Description 3 3 2 Remote timer configuration ENDOS AC ACP 120V arth OQ Hm Figure 3 2 Tubehead ocissors arm Extension arm Wall support kit code 8161301002 Remote timer X ray button 12 Rev 7 SERVICE MANUAL DENTX Description 3 3 3 Mobile stand configuration Figure 3 3 Tubehead Scissors arm Mobile stand Timer N m X ray button Rev 7 E ENDOS 120V SERVICE MANUAL Description DZNTX 3 3 4 Remote X ray button configuration Figure 3 4 Alternative 1 1 X ray button not supplied Alternative 2 2 X ray button light signalling of Ready or Exposure in progress suppl
80. the manual and never for different purposes from the ones for which it has been designed 1 1 Icons in the manual Indicates a NOTE we recommend particular attention in reading the Y subjects identified with this icon Indicates a WARNING subjects identified with this icon concern safety aspects regarding the patient and or the operator Rev 7 1 ENDOS AC ACP 120V D NTX 2 N SERVICE MANUAL Safety aspects SAFETY ASPECTS WARNING Read this chapter very carefully Villa Sistemi Medicali designs and makes their equipment according to safety requirements moreover they supply all necessary information for appropriate use and warnings relating to dangers connected with X ray generators The manufacturer does not accept any responsibility for e Use of ENDOS AC ACP equipment for purposes other than those for which it has been designed e damages to the equipment the operator the patient caused both by wrong installations and maintenance that do not follow the procedures contained in the user manuals and the installation provided with the equipment and by wrong operating techniques e mechanical and or electrical changes made during and after installation that differ from the ones in the Service Manual Only personnel authorised by the Manufacturer may carry out technical work on the equipment Only authorised personnel can remove the tubehead from its support and or gain access to live p
81. timer during the enabled status and during exposure and determined by the internal algorithm as a function of line voltage Rev 7 15 ENDOS AC ACP 120V SERVICE MANUAL Technical data Tubehead features Manufacturer VILLA SISTEMI MEDICALI Buccinasco 70 kV 430 W 100 ms gt 2mm eq 70 kV gt 1 5 mm AI eq Oil bath Interval between exposures 32 times X ray time duty cycle I 132 0 8 IEC 336 20 cm optional 30 cm cone X ray beam diameter 20cm focus lt 6 cm optional 35x45 mm Cooling Rated voltage Tubehead power Pre heating time Total filtration HVL Half Value Layer Transformer insulation Focal spot Minimum focus to skin distance Convection 0 1 mGy h 70 kV 8 mA 1 s duty cycle exposure each 32 seconds Radiation leakage at 1 m Technical factors for radiation leakage X ray tube features Manufacturer CEI Bologna KAILONG Electronic Italy China OCX 70 G KL16 0 8 70G with grid 0 5 mm Al equivalent to 70 kV Inherent filtration 0 4 mm AI equivalent to 70 kV Anode material Tungsten 70 kV 2 8 Tungsten 70 kV 2 8 A 4 V 7 kJ Rated voltage Maximum filament current Maximum filament voltage 3 O 5 IN lt Anode thermal capacity 6 kJ ENDOS AC ACP 120V 1 Rev 7 SERVICE MANUAL DENTX Technical data Environmental conditions Operating tempera
82. ture range 10 C 40 C Operating relative humidity range 30 75 Temperature range for transport and 20 C 70 C storage Max relative humidity for transport and lt 95 non condensing storage Min atmospheric pressure for storage 630hPa and transport Apparatus and detachable parts weight Gross weight including packing 30 4 kg Net apparatus weight in standard configuration 60 cm extension arm standard Rev 7 17 ENDOS AC ACP 120V DENTX 4 1 SERVICE MANUAL Technical data Method for correcting exposure times This RX intraoral equipment features a special function called Computer Controlled Density which makes it possible to correct exposure time automatically when line voltage is different from its nominal voltage A change in the line voltage affects the peak voltage applied to the RX tube and the high voltage value affects the Rx spectrum very significantly This in turn affects the optical density of the image on the film The task of the correction is to achieve the same optical image density irrespective of the variations in line voltage within its permitted variation range of 10 In short this feature makes it possible to obtain the same quality of image without having to be concerned about possible line variations which occur frequently in many areas and which are almost impossible to prevent without resorting to costly equipment Automatic exposure time correction works with the follow
83. vasive equipment can lead to systematic errors in exposure time measurements which cannot be quantified and which depend on the equipment used for measuring see paragraph 4 3 ENDOS AC ACP 120V 20 Rev 7 Technical data SERVICE MANUAL DENTX 4 3 Rev 7 Correct use of dosimeters to measure exposure times The spread of non invasive equipment to measure the functional parameters of RX equipment has introduced a series of interpretation problems when measuring exposure times The source of the problem is in the characteristic rise curve of the RX tube s anodic current which is represented in the picture Anodic current 7 5 5 1 8 E D m f Time According to 60601 2 7 1998 regulations in equipment where the filament is switched on and high voltage is applied simultaneously the exposure time is calculated as the interval between the instant when the anodic current exceeds 25 of the nominal value and the instant when it goes below such value This method is defined as invasive because it requires that the anodic current flowing through a resistance inside the tubehead must be measured Non invasive methods are definitely easier and faster compared with the invasive method but they are prone to errors which can be considerable when determining exposure time In fact some of these devices start counting exposure time as so
84. xtension arm frictioning for arm S N mechanism gt 11120813 Extension arm frictioning for arm S N mechanism lt 11120813 Busher 28 mm Extension arm 30 cm Extension arm 60 cm Extension arm 80 cm 100 Rev 7 SERVICE MANUAL Spare Parts Rev 7 101 ENDOS AC ACP 120V SERVICE MANUAL DENTX Spare parts 3 MOBILE STAND Ref VSM code Description Note 1 8160120000 Mobile stand complete 2 4890310400 Wheel with brake 80x24 4890307000 Wheel 80x24 3 6661305600 Mobile stand spacer 4 9261304700 Timer fixing plate ENDOS AC ACP 120V 102 Rev 7 SERVICE MANUAL Spare Parts Rev 7 103 DZNTX ENDOS AC ACP 120V DENTX SERVICE MANUAL Spare parts 4 TUBEHEAD Ref VSM code Description Note 1 59160402800 Seeger 2 6160204400 Grounding clip assy 3 9461205002 Sliding cover of seeger 4 6260439600 Sliding connector male 5 6661408500 Tubehead cover kit without label 6 5160423800 Angle indicator 7 59460420803 Tubehead lateral cover 8 7260474502 Tubehead support 9 59160401800 Aluminium filter 1mm 10 8461406602 Tubehead complete assembly CEI tube 8461406612 Tubehead complete assembly KAILONG tube ENDOS AC ACP 120V 104 Rev 7 Spare Parts SERVICE MANUAL DENTX 10 9 5 8 7 Rev 7 105 ENDOS AC ACP 120V
85. y Size 13 S Large size LED 14 6 Medium size LED 15 7 Small size LED 16 8 Tooth anatomic selection key 17 9 LED Bite wing 18 Rev 7 51 LED Upper Molar LED Lower Molar LED Premolars LED Incisors Canines Videography selection key Videography LED Increase key Decrease key Three figure display ENDOS AC ACP 120V DENTX SERVICE MANUAL Installation All functions in the equipment are set to standard values and tested in the factory during the final test Some functions however can be adjusted by the Technical Service only after setting up or according to particular needs see chapter 8 After connecting the equipment to the line voltage make the following functional tests 1 2 3 Turn the line switch placed in the lower part of the timer to ON and check that the switch light comes on Check the correct working in automatic mode checking with all Size Type of tooth combinations that the values on the display correspond to the values in the table The values in the table are those shown when the multiplication factor 1 see set up parameter P13 paragraph 8 1 is set These suggested values are for type D film For other films please refer to film manufacturer specification Table 1 Select manual function by increase or decrease y key and check pressing the keys repeatedly that the display shows the different manual exposure times as in the following ta

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