Endos AC/ACP User Manual - at www.ImageWorksCorporation.com.
Contents
1. naires 60 9 CHECK AND CORRECTION OF POSSIBLE ERRORS IN DENTAL X RAYS 61 9 1 Typical faults in intraoral X rays 61 9 2 Typical faults caused by wrong positioning 63 10 MAINTENANCE 64 This publication can only be reproduced transmitted transcribed or translated into any human or computer language with the written consent of Manufacturer ENDOS AC ACP 120V ii Rev 1 USER S MANUAL DENTX Contents This Manual in English is the original version Rev 1 iii ENDOS AC ACP 120V USER S MANUAL DENTX Introduction L INTRODUCTION NOTE 6 ms 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 following2. DENTX ENDOS AC ACP os 120V version E E 2 x User s Manual Release 10 January 2006 Rev 5 USER S MANUAL DENTX Revision history Revision history Rev Date Page s Modification description 0 02 04 03 Document approval 1 25 09 03 All Remote timer version release ETL certification Ref RDM 5641 2 10 11 03 7 8 Addition of X MIND identification on main label Ref RDM 5693 3 26 03 04 8 Notify body change for CE mark Ref RDM 5781 4 15 03 05 8 18 36 Editorial correction on Enabling Disabling the Ready key Modified the DP arm label Ref RDM 5938 RDM 6052 5 10 01 06 28 Dose linearity reference measurement time update Ref RDM 6164 Rev 5 ENDOS AC ACP 120V USER S MANUAL Revision history THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP 120V Rev 1 USER S MANUAL DENTX Contents Contents 1 INTRODUCTION 1 1 1 Icons in the manual hist noti 1 2 SAFETY ASPECTS 2 2 1 A m 3 2 2 Protection from X TayS ciere La 4 2 3 Environmental risks and disposal eee 4 2 4 Symbols in USE ood tire eee eie e a eaves ed opes eee ev ede ger vo a 5 3 CLEANING AND DISINFECTION 6 4 DESCRIPTION 7 4 1 Identification labels 7 4 2 Functions Models a
3. 9 a D o s 5 Manufacturer CEI Bologna KAILONG Electronic Italy China Type OCX 70 G KL16 0 8 70G with grid Inherent filtration 0 5 mm Al 0 4 mm Al equivalent to 70 kV equivalent to 70 kV Anode tilt 19 19 Anode material Tungsten Tungsten Rated voltage 70 kV 70 kV Maximum filament current 2 8 A 2 8A Maximum filament voltage 4V 4 1V Anode thermal capacity 6 kJ 7 kJ ENDOS AC ACP 120V 6 Rev 1 USER S MANUAL Technical data Environmental conditions Operating temperature range Operating relative humidity range Temperature range for transport and storage Max relative humidity for transport and storage Min atmospheric pressure for storage and transport Apparatus and detachable parts weight Gross weight including packing Net apparatus weight in standard configuration 60 cm extension arm standard 80 cm extension arm 30 cm extension arm 10 C 40 C 30 75 20 C 70 C lt 95 non condensing 630hPa Scissors arm Timer plus wall plate Tubehead Rev 1 17 ENDOS AC ACP 120V D USER S MANUAL Technical data 5 1 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 th
4. check expiry date e Accidental exposure of the film to X ray e Accidental exposure of the film to other sources of natural or artificial light e Dark line on X rays This line appears when the film is excessively folded e X rays with marks of electrostatic electricity When the film is excessively compressed and the air is dry electrostatic electricity can be released so it can run down to compression points where black marks form e X rays with chemical spots The scattering of developing or fixing fluid on the film before development and fixing procedures causes spots on the X rays these spots are e Dark if caused by the developing fluid e Light if caused by the fixing bath e X rays with emulsion loss If the film is kept in a warm water bath too long for instance all night the emulsion can soften and partially come off the base of the film After development the film will be scratched ENDOS AC ACP 120V 62 Rev 1 USER S MANUAL DENTX Check and correction a 9 2 Typical faults caused by wrong positioning e X rays with extended or shortened images The X ray beam is not perpendicular to the bisecting line of the angle formed by the longitudinal axis of the tooth and by the film e X rays with extended apex of the tooth Probably caused by excessive folding of the film in the patient s mouth Rev 1 63 ENDOS AC ACP 120V DENTX USER S MANUAL Maintenance 10 MAINTENANCE Like all
5. lt green LED 3 Exposure permission READY 4 Increase key 5 Decrease key 3 E 6 Three figure display Figure 8 Control keuboard ENDOS AC NOTE ENDOS AC timer is provided with Stand By function so if a key is not pressed for 5 minutes the timer goes into stand by low consumption shown on display by the presence of the decimal point on the right only Press any key to go back to the operative condition INCREASE KEY exposure time Ve DECREASE KEY exposure time 2 By pressing one of these keys you can select exposure time by turning the key onto one of the 33 available times Press the increase and decrease keys to modify the pre set time you can select quickly by keeping the key pressed in this way the variation happens quickly ENDOS AC ACP 120V 34 Rev 1 USER S MANUAL DENTX General use instructions wa Equipment enabling key For additional safety ENDOS AC timer is provided with the Exposure enabling function X rays can be emitted only after pressing the key The equipment enabled signal is displayed on the keyboard by switching on the corresponding green signal This enabling lasts for a pre set time variable during setup phase between 10 and 30 seconds default 15 seconds after which the function itself is disabled and no X rays are emitted if the exposure button is touched NOTE When the READY key is pressed not only will exposure be enabled but the equipment will also start di
6. 26 Rev 1 USER S MANUAL DENTX E Technical data 5 5 Reference standard Enforceable regulations 21 CFR CEE 93 42 EN 60601 1 EN 60601 1 1 EN 60601 1 2 EN 60601 1 3 EN 60601 1 4 EN 60601 2 7 see NOTE EN 60601 2 28 Rev 1 NOTE The 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 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 5 3 you have the uncertainty of 1 peak in determining the first peak which exceeds 25 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 s
7. Stand By function so if no key is pressed for 5 minutes the timer goes into stand by low consumption indicated on the display by the presence of only the decimal point on the right To go back to the operative condition press any key INCREASE KEY exposure time Ve DECREASE KEY exposure time 2 By pressing of these keys you go from automatic selection to manual selection In this way all signals related to automatic selection Patient s size Tooth Selection Digital Sensor are switched off So time selection will work in a manual way You can select quickly by keeping the key pressed in this way the variation works quickly To go back to the automatic time selection press one of the Selection keys Patient s Size Tooth Digital Sensor SIZE selection key e Press key 4 to select from different patient sizes small a medium m and large m Even in this case exposure times vary An acoustic signal about Y second is linked to each touch of the key linked to switching on the selected function from the LED Rev 1 31 ENDOS AC ACP 120V DENTX USER S MANUAL General use instructions TOOTH ANATOMIC selection key Press key 8 e to select from the exposure times provided for the different teeth The meaning of symbols is explained as follows 5 BA U U Incisors Premolars Canines Bite wing Upper molar Lower molar superior or superior or inferior inferi
8. USE 37 7 1 Equipment preparation au esset eene ea teen In Eo e 38 7 1 1 Preparation of the timer for X ray use with automatic selection of exposure times only for ENDOS ACP version 38 7 1 2 Preparation of the timer for radiographic use with manual selection of exposure times siiin irrino o Euren ananas 39 7 1 3 Preparation of the timer for Digital Radiography Videoradiography use with automatic selection of exposure times only ENDOS ACP orig Em 40 7 2 Preparation of the tubehead 41 1 3 Exposute techniques eet puyusqa RR YE e Eee nune eR quspay aa 45 7 3 1 Bis cting technique viven o sic 45 43 9 2 Parallel technique eerte tentorio o 47 754 EXPOS UTC criteria 48 7 9 Special TUN CUONS 50 7 5 1 Counting the number of exposures made 50 7 5 2 Selection of multiplication factor for different types of film 51 7 5 3 Selection of multiplication factor for Video X Ray Digital 53 8 MESSAGES ON DISPLAY 54 S L Functional Messages 2 iii 54 8 2 Error signalling a iii ad a ee atus paui 57 8 2 1 Non re settable ELLOLS race 58 8 2 2 Non fatal errors in start up phase 59 8 2 3 Errors in exposure
9. electrical equipment this unit requires not only correct use but also maintenance and checks at regular intervals This precaution will guarantee that the equipment works safely and efficiently Periodic maintenance consists in checks carried out directly by the operator and or by the Technical Service The operator can carry out the following checks himself check the labels are intact and well attached check there are no oil marks on the tubehead check the remote control cable is not broken or scratched check there are no external damages to the equipment which could make it unsafe in terms of protection from radiation check the scissors arm balance WARNING w If you find irregularities or damages the operator must inform the Technical Service immediately ENDOS AC ACP 120V 64 Rev 1 USER S MANUAL Maintenance Installation Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Maintenance Rev 1 MAINTENANCE OPERATIONS RECORD 65 ENDOS AC ACP 120V USER S MANUAL THIS PAGE IS INTENTIONALLY LEFT BLANK ENDOS AC ACP 120V 66 Rev 1 Cod 6961902003_Rev 5 0051 Dent X Corporation USA 250 Clearbrook Road Elmsford New York 10523 Phone 914 592 6100 Fax 914 592 6769
10. 0 Rev 1 USER S MANUAL DENTX E Equipment use 7 2 Preparation of the tubehead a Set the tubehead with an angle suitable for the exposure and positioning requested see Figure 9 Figure 10 Figure 11 Figure 12 b Put the film into the patient s mouth according to the chosen way bisecting or parallel For this purpose see paragraph 7 3 c Move the tubehead cone towards the patient and focus it exactly towards the tooth to X ray referring to the following Figures NOTE If you want to use the rectangular collimator 35x45 assemble it by clicking it on the end of the collimator cone positioning it as requested NOTE d If you want to use the extended 30cm cone snap it on the 20cm cone WARNING Anatomical preset times are no more valid when 30cm cone is mounted Typically times necessary to obtain the same optical density must be multiplied by a factor 2 25 operating in manual exposure time selection Rev 1 41 ENDOS AC ACP 120V USER S MANUAL Equipment use LOWER JAW MANDIBLE INCISIVI incisors incisives PREMOLARI premolars pr molaires Figure 9 ENDOS AC ACP 120V CANINI canines canines MOLARI molars molaires Rev 1 USER S MANUAL DENTX Equipment use UPPER JAW P p AN EJ Jl NDS A INCISIVI CANINI inciso
11. 02 to 3 2 s in 33 steps Automatic selection 30 pre set times only for ENDOS ACP Exposure time accuracy of corrected 10 or 32 ms time see paragraph 5 1 whichever is greater see note paragraph 5 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 5 1 Circuit type Single phase self rectifying with grid control kV selection high voltage value 70 kVp Tubehead current 8 mA KV accuracy 15 Tubehead anode current accuracy 2 mA Max exposure time 3 25 Timer dimension 345x195x100 mm This is the actual exposure time pre indicated on the timer during the enabled status and during exposure and determined by the internal algorithm as a function of line voltage Rev 1 15 ENDOS AC ACP 120V USER S MANUAL Technical data Tubehead features Buccinasco MI Tubehead power Transformer insulation Interval between exposures 32 times X ray time 1 32 Focal spot 0 8 IEC 336 Minimum focus to skin distance 20 cm optional 30 cm cone X ray beam diameter 20cm focus lt 6 cm optional 35x45 mm Convection Radiation leakage at 1 m Technical factors for radiation leakage 70 kV 8 mA 1 s duty cycle X ray tube features s
12. BLES POUR ASSURER UNE PROTECTION CONTINUE CONTRE LE RISQUE D INCENDIE UTILISER UNIQUEMENT UN FUSIBLE DE RECHANGE DE MEME TYPE ET DE MEMES CARACTERISTIQUES NOMINALES 3b Tubehead label X ray tube type CEI TUBE HOUSING ASSEMBLY Model 8461406602 S N 31XXYYYY Manufactured MMMM YYYY Output 70 kVp 8mA at 120 V X ray beam lt 6 cm at FFD 20 cm m 0 8 IEC 336 Preheating time 100 ms X RAY TUBE Manufacturer Manufactured by SING ionis VILLA SISTEMI NEAR al MEDICALI S p A THIS PRODUCT COMPLIES WITH FDA RADIATION Total filtration gt 2 mm Al Model OCX 70 G CEI Bologna Italy PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J 20090 Buccinasco MILANO ITALY IN EFFECT AT DATE OF MANUFACTURE 4 5 DP arm label Model 8161200602 S N 10XXYYYY ENDOS AC ACP 120V Extension arm label Model 8161200X02 Tubehead label X ray tube type KAILONG DENTX TUBE HOUSING ASSEMBLY Model 8461406612 S N 31XXYYYY Manufactured MMMM YYYY Output 70 kVp 8 mA at 120 V at FFD 20 cm Total filtration 22 mm Al X ray beam lt 6 cm W 0 8 IEC 336 Preheating time 100 ms X RAY TUBE Manufacturer Manufactured by SIN cenis VILLA SISTEMI tiie GER aac BORMA MEDICALI S p A THIS PRODUCT COMPLIES WITH FDA RADIATION Model KL16 0 8 70G KAILONG China PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J 20090 Buccinasco HILANG ITALY IN EFFECT AT DATE OF MANUFACTURE 6 Collimator 30 cm optional lab
13. RNING Protection from X ray radiation is regulated by law The equipment must be used by specialised personnel only 2 3 a 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 b During X ray exposure the operator must not come into contact with the tubehead or the collimator cone c 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 d During exposure the operator and the patient are the only people allowed in the room e The lead aprons should be used to reduce the undesirable effect of secondary radiation on the patient 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 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 NOTE The manufacturer and the distributor do not accept any responsibility for the disposal of equipment or parts discarded by the user and the related costs ENDOS AC ACP 120V 4 R
14. basis exposure the basis exposure the basis exposure of current time due to of current time due to of current time due to of current time due to of current time due to of current time due to line intrinsic line intrinsic line intrinsic line intrinsic line intrinsic line intrinsic voltage inaccuracy voltage inaccuracy voltage inaccuracy voltage inaccuracy voltage inaccuracy voltage inaccuracy line voltage RES 137 a os oe 072 preselected time ms 20 32 64 27 59 23 55 49 48 14 46 0 0 0 0 0 0 40 64 96 55 87 47 E A 63 29 61 32 23 15 3 0 0 60 97 129 82 114 70 79 43 75 65 50 38 20 15 11 100 161 193 137 169 E R 110 72 104 129 105 85 55 46 40 200 322 354 274 306 234 188 144 176 a2 202 te 124 112 400 644 676 548 580 468 344 288 320 602 se 43 J 36 280 256 800 1288 1320 1096 1128 93 9e8 696 728 624 656 576 608 1256 1064 9 64 592 544 1000 1610 1642 1370 1402 1170 812 720 752 1578 188 1138 ss 748 688 1200 1932 1964 1644 1676 1404 968 864 896 190 tez 132 904 832 1500 2415 2447 2055 2087 1755 1202 1080 1112 2393 203 1728 1238 1138 1048 2000 3220 3252 2740 2772 2340 1592 1440 1472 z O 2500 4025 no exposure 3425 3457 2925 2957 2175 2207 1950 1982 1800 1832 3000 4830 no exposure 4110 no exposure 3510 ag 2610 2642 2340 2372 2160 2192 no exposure the timer
15. being emitted signalling that emission is actually taking place Emission is also signalled by an acoustic signal Display showing exposure times The display in the middle top part of the keyboard has a multiple function 1 During the exposure preparation phase it displays the automatically or manually selected exposure time 2 Soon after enabling the equipment by pressing the Ready key and during the exposure phase it displays exposure time corrected by the equipment to compensate line voltage fluctuations while at the end of the exposure it displays the time that must elapse before the end of the tubehead cooling pause 3 At the end if you press the X ray button with exposure not enabled the display shows the latest actual exposure time ENDOS AC ACP 120V 36 Rev 4 USER S MANUAL DENTX E Equipment use 7 EQUIPMENT USE a Press the switch on button located at the bottom of the timer This operation will start the equipment s automatic control function b After completing the control function possible anomalies pointed out are signalled by error messages described in chapter 8 the equipment displays the standard anatomic selection or the selection pre set before switching off according to the mode chosen during setting up NOW THE EQUIPMENT S READY FOR USE Rev 1 37 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use 7 1 7 1 1 Equipment preparation Preparation of the timer
16. ct some of these devices start counting exposure time as soon 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 DENTX USER S MANUAL Technical data 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 Ina 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 th
17. d correction 9 9 1 Rev 1 CHECK AND CORRECTION OF POSSIBLE ERRORS IN DENTAL X RAYS Typical faults in intraoral X rays Too pale X rays Possible causes e Inadequate exposure to X rays short time e Inadequate development time e Damaged developer e Developer temperature lower than the requested value e Wrong dilutions of developing fluids Too dark X rays Possible causes e Excessive exposure to X rays e Excessive development time e Developer temperature over the requested value e Wrong dilution of developing fluids Out of focus X rays impossibility to see details Possible causes e The patient moved e The tubehead moved X rays with fishbone marks Some intraoral films have a thin lead layer in the box with some fishbone marks engraved in the lower part These films can be exposed to radiation only on one side If the film is exposed to the wrong side the lead layer will absorb a large amount of radiation during exposure The result will be a lighter X ray and the film will show fishbone marks 61 ENDOS AC ACP 120V DENTX USER S MANUAL Check and correction e Partially exposed X rays Possible causes e X rays directed far from the medial section of the film e Low fluid level with subsequent partial development of the film e Two or more films one close to the other in the developer e Darkened X rays Possible causes e The film has been in the warehouse for too long
18. does not allow exposure times longer than 4 sec Rev 1 19 ENDOS AC ACP 120V DENTX USER S MANUAL M Technical data 5 2 kV mA 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 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 take
19. e device before the anodic current is 2596 of its maximum value 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 1 USER S MANUAL DENTX Technical data 5 4 Curves tube features OCX 70 G Feature of emission V 70kV anodic current anodic current 2 0 2 5 3 0 3 5 4 0 45 5 0 filament voltage V filament voltage v Load m Serres LLL IE LI AE A EE tty Bema L yg anodic current exposure time Rev 1 23 ENDOS AC ACP 120V DENTX USER S MANUAL Technical data Curve anode cooling 150 w 120 W kJ 70W Curve tubehead cooling 160 120 E kJ 80 40 0 100 200 300 400 time min ENDOS AC ACP 120V 24 Rev 1 X USER S MANUAL Technical data KL16 0 8 70G Feature of emission Va 65kV a T N MINI SALI R 2ko 72 g i EDAN AE 25 3 35 4 Filament characteristics 3 0 2 5 2 0 1 5 3 5 2 5 ENDOS AC ACP 120V 25 Rev 1 USER S MANUAL Technical data Curve tubehead cooling 160 120 E kJ 80 40 0 100 200 300 400 time min ENDOS AC ACP 120V
20. e 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 following 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 b
21. ecksum error of memories EEPROM EPROM and RAM test 1 ACOUSTIC signal Absent Checks and operations to execute Contact Technical Service X ray relay closed at start up Absent Contact Technical Service Tubehead supply active at start up ACTIVE Switch off system Contact Technical Service X ray exposure enabling external button Primary pressed at start up Absent Check if the primary X ray button is pressed or in short circuit in this case call Technical Service X ray exposure enabling external button Remote pressed at start up Both X ray exposure enabling external buttons pressed at start up Absent Absent Check if the remote X ray button is pressed or in short circuit in this case call Technical Service Check if both X ray buttons are pressed or in short circuit in this case call Technical Service Equipment enabling key pressed at start up Check the control keyboard and if necessary call Technical Service Digital selection key pressed at start up 3 Absent Check the control keyboard and if necessary call Technical Service Increase key pressed at start up Absent Check the control keyboard and if necessary call Technical Service Decrease key pressed at start up Absent Check the control keyboard and if necessary call Technical Service WARNING w vw E 2 In the event of an 0 error signal s
22. een 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 ofit ENDOS AC ACP 120V 18 Rev 4 USER S MANUAL Technical data DENT The qualitative relation between the multiplication factor and the line voltage is shown in the following picture for equipment configured to work at 120V Multiplication factor of exposure time to the variation of line voltage 1 75 1 5 1 25 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 128V 132V corrected corrected corrected corrected corrected corrected exposure exposure exposure exposure exposure exposure time on max min time on max min time on max min time on max min time on max min time on max min the basis exposure the basis exposure the basis exposure the
23. el D NTX BEAM LIMITING DEVICE Model 61614050 Diameter lt 6cm at FFD 30 cm S N 40XXYYYY Manufactured MMMM YYYY Manufactured by VILLA SISTEMI THIS PRODUCT COMPLIES WITH FDA RADIATION MEDICALI S p A PERFORMANCE STANDARDS 21 CFR SUBCHAPTER J 20090 Buccinasco IN EFFECT AT DATE OF MANUFACTURE MILANO ITALY Rev 4 USER S MANUAL DENT Description 4 2 4 2 1 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 requires a flare angle of less than 160 4 2 2 Rev 1 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
24. electable parameter with a near relation but lower than 2 dose linearity is calculated by the formula 1 tl Dose t2 12 lt 0 2 x Dose tl t1 Dose t2 t 2 Again due to the characteristic the anodic current rise curve in AC equipment the linearity 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 AC ACP 120V DENTX USER S MANUAL Technical data 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 2596 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 60ms ENDOS AC ACP 120V 28 Re
25. ev 1 USER S MANUAL DENTX Safety aspects 2 4 Symbols use The following symbols are used in this manual and in ENDOS AC ACP besides the symbols on the keyboard see chapter 6 Protection ground Functional ground OFF equipment not connected to electricity line ON equipment connected to electricity line Permission key to exposure the permitted exposure status is displayed by switching on the corresponding green symbol Focal spot according to IEC 336 X ray emission Rev 1 5 ENDOS AC ACP 120V DENTX USER S MANUAL Cleaning and disinfection 3 CLEANING AND DISINFECTION The following procedures should be observed carefully in order to guarantee accurate hygiene and cleaning e Before cleaning the equipment disconnect it from the line using the cut out switch which must be provided when setting up This operation is necessary as some internal parts remain live even after it has been switched off from the on board switch Be careful not to let water or other fluids enter the equipment in order not to cause a short circuit and corrosions e Never use solvents alcohol petrol Trichloroethylene corrosive or abrasive substances when cleaning External surfaces Use a soft cloth and for a stronger action a neutral soap to prevent damaging painted surfaces During cleaning operations prevent surplus detergent and or fluids entering the equipment or staying on painted sur
26. faces Parts that come into contact with the patient s skin These parts should be disinfected at regular intervals with a 2 Glutaraldeide solution to guarantee hygiene ENDOS AC ACP 120V 6 Rev 1 USER S MANUAL DENTX Description 4 DESCRIPTION 4 1 Identification labels Rev 2 7 ENDOS AC ACP 120V USER S MANUAL Description la 1b ENDOS AC ACP ETL certification label label ENDOS xxx X MIND Line 120 V 7 8 A at 132 V 60 Hz Duty cycle 1 32 Max exposure time 3 2 s E CONFORMS TO Manufactured MMMMYYYY e us UL STD 2601 1 X RAY CONTROL S N 23XXYYYY Manufactured by MEDICALI S p A Model 8361306X02 V syen 2001443 CERTIFIED TO CAN CSA STD 622 2 NO 601 1 VILLA SISTEMI THIS PRODUCT COMPLIES WITH FDA RADIATION 0054 SEREORMANCE STANDARDS 21 CFR SUBCHAPTER J 20090 Buccinasco MILANO ITALY 3a IN EFFECT AT DATE OF MANUFACTURE 2 WARNING label COMPLIES 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 HAZARD DO NOT REMOVE PANELS RISK OF EXPLOSION DO NOT USE IN PRESENCE OF FLAMMABLE ANESTHETICS FOR CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE ONLY WITH SAME TYPE AND RATING OF FUSE DANGER RISQUE D ESPLOSION NE PAS EMPLOYER EN PRESENCE D ANESTHESIQUES INFLAMMA
27. for X ray use with automatic selection of exposure times only for ENDOS ACP version If you want to enable the automatic selection you must choose the patient s size using keys m m You will then set the type of tooth to be examined choosing from the projections MRE By pressing the keys on the control panel the selection made is highlighted by an acoustic signal and the LED relating to the pressed key turns on The selected size tooth combination will produce the basic exposure time on the display see Table 1 Exposure times shown are those suggested for Ultra Speed Kodak films Type D Table 1 ENDOS AC ACP 120V 38 Rev 1 USER S MANUAL DENTX Equipment use NOTE When using different types of film example type E the multiplication factor must be modified for automatic selection This modification can be made by the Service Technician during setting up or made directly by the user see paragraph 7 5 2 It is necessary to set the multiplication factor shown on the documentation provided by the film producer 7 1 2 Preparation of the timer for radiographic use with manual selection of exposure times Enable manual selection working on keys Ve and 2 By enabling manual selection the automatically pre set time will increase by pressing key Ve and decrease by pressing key 2 increase or decrease times click by click press of the keys several
28. lay the value referring to the set multiplication Factor for Video X ray Digital Use the decrease key if you want to decrease this time and the increase key if you want to increase it Press key to confirm the selection 53 ENDOS AC ACP 120V DENTX USER S MANUAL Messages on display 8 MESSAGES ON DISPLAY The ENDOS ACP or ENDOS AC timer display is also used to display messages identifying the equipment status These messages are connected to the conditions affecting X ray emission or error conditions that occurred during normal working 8 1 Functional messages The X ray cycle is not enabled or is stopped for the following reasons e Line voltage less than 12 1 of rated voltage Before making an exposure the device checks the line voltage If the voltage is less than 12 196 compared with the rated voltage the display shows the letters LLL together with the operativity green LED which will start flashing To reset this alert press any increase or decrease key gt DIO lt lt 01220 ENDOS 120V 54 Rev 1 USER S MANUAL DENTX Messages on display e Line voltage more than 12 1 of rated voltage Before making an exposure the device checks the line voltage If the voltage is more than 12 196 compared with the rated voltage the display shows the letters HHH together with the operativity green LED which will start flashing To reset this alert press any key increase or dec
29. ll not only enable exposure but it will also start showing the exposure time on the display calculated according to line voltage fluctuation compensation see paragraph 5 1 c d e Walk away as far as the X ray button cable will allow in the opposite direction to the X ray beam Press the X ray emission button and keep it pressed during exposure Exposure starts when the yellow light and an acoustic signal come on WARNING The X ray emission button is a dead man control so it must be 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 This signal stays until one of the time increase keys is touched If there is an excessive variation in line voltage which would require an actual exposure time of 4 or more seconds the equipment will not execute the exposure In this case the display shows the correct exposure time according to the line fluctuation If the voltage is outside an acceptable range the display will show respectively LLL voltage too low and HHH voltage too high The touch of the X ray button with non enabled exposure will display the value of the actual exposure time of the latest exposure made or the time selected in the case of a first exposure When the exposure finishes
30. n at nominal line voltage measuring the anodic current wave form on the 1kO resistance and using a memory oscilloscope Exposure time measurements using non invasive 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 5 3 ENDOS AC ACP 120V 20 Rev 1 USER S MANUAL DENTX Technical data 5 3 Rev 1 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 Time According to 1EC60601 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 fa
31. nd Versions 9 4 2 1 Extension arm and scissors arm 9 422 tennis 9 10 4 3 CONnMSUTATIONS 2 11 4 3 1 Standard configuration 11 4 3 2 Remote timer configuration a uuu apesssquasaaawawpuwsasyaycashskapsuqanqapaqwasqqkiqha 12 4 3 3 Mobile stand 13 4 3 4 Remote X ray button configuration 14 5 TECHNICAL DATA 15 5 1 Method for correcting exposure times 18 5 2 Method for measuring technical factors 20 5 3 Correct use of dosimeters to measure exposure times 21 5 4 Curves tube 23 5 5 Reference Standard cnica as 27 5 6 Overall dimensions anre neu nre ex RES RO SU VAN E ERES Ee UE cines der 29 6 GENERAL USE INSTRUCTIONS 30 6 1 ENDOS ACP timet cosi A a 30 6 2 ENDOS AC TIME eee ette erheben Exe eere de En sawa ERR TERRI R pe ERR ET ee 34 6 9 VisualisienalS 36 Rev 1 ENDOS 120V DENTX USER S MANUAL Contents 7 EQUIPMENT
32. nt 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 parts ENDOS AC ACP 120V 2 Rev 1 USER S MANUAL DENTX Safety aspects 2 1 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 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 Appropriate accessories such as lead aprons must be used to protect the patient from radiation Although the equipment is designed to provide a reasonable degree of protection from electromagnetic interference according to IEC International regulations i
33. o stand by status press key ENDOS AC ACP 120V 50 Rev 1 USER S MANUAL DENTX Equipment use 7 5 2 Selection of multiplication factor for different types of film NOTE This parameter is displayed only for the ENDOS ACP version as the ENDOS AC version does not include the use of automatic selection Rev 1 This particular function enables the operator to vary the duration of exposure according to the film speed so affecting the quality of X ray image The film speed is reported on the film boxes The value shown on display is a X multiplication factor correcting exposure times in CONVENTIONAL RADIOLOGY non digital WITH AUTOMATIC ANATOMIC SELECTION The different available X multiplication factors are reported in the following table X multiplication factor 0 5 0 8 x 1 4 1 6 2 0 Default value 1 0 For the appropriate multiplication factor please check documentation provided by the film manufacturer To show this parameter on display it is necessary to switch off the equipment switch it on again and when the wording relating to the software version i e 4 xx shows on the display press key for a few seconds P13 will appear By pressing the increase or decrease key the value related to the set multiplication factor is displayed 51 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use Use the decrease key if you want to decrease this time and
34. on arm Timer a Q N X ray button Rev 1 11 ENDOS AC ACP 120V DENTX USER S MANUAL Description 4 3 2 Remote timer configuration Figure 2 Tubehead Scissors arm Extension arm Wall support kit code 8161301002 Remote timer aa BO ND X ray button ENDOS AC ACP 120V 12 Rev 1 USER S MANUAL DENTX Description 4 3 3 Mobile stand configuration Figure 3 Tubehead Scissors arm Mobile stand Timer a Q N X ray button Rev 1 13 ENDOS AC ACP 120V DENTX USER S MANUAL Description 4 3 4 Remote X ray button configuration Figure 4 Alternative 1 1 X ray button not supplied Alternative 2 2 X ray button light signalling of Ready or Exposure in progress supplied as kit P N 6661309500 ENDOS AC ACP 120V 14 Rev 1 USERS MANUAL DENTX 5 TECHNICAL DATA Equipment ENDOS AC ACP Manufacturer VILLA SISTEMI MEDICALI Buccinasco MI Class Class I with type B applied parts EN 60601 1 classification Protection level Standard Apparatus IP20 Line voltage 120 V 10 Line frequency 60 Hz Max absorbed current 7 8 A rms impulsive 132 V Power consumption 920 VA impulsive 120 V Line voltage regulation lt 3 Main fuse 10 AF Pre set exposure times from 0
35. or Exposure enable key Ready For additional safety ENDOS ACP timer is provided with an Enabling of exposure function X rays can be emitted only after pressing the key The equipment enabled signal is displayed on the keyboard by switching on the corresponding green signal This enabled signal stays for a set time variable during setup between 10 and 30 seconds default 15 seconds after which the function itself is disabled and X rays are not emitted if the exposure button is touched NOTE When the READY key is pressed not only will exposure be enabled but the equipment will also start displaying exposure time on the display calculated according to line voltage fluctuation compensation see paragraph 5 1 ENDOS AC ACP 120V 32 Rev 1 USER S MANUAL DENTX General use instructions wa Digital selection key Key 14 enables automatic exposure for Digital X rays reducing exposure times to values suitable to digital sensors NOTE Value setting and the setting of the exposure time reduction factor in digital selection by the operator are described in paragraph 7 5 3 NOTE This key and the connected functions can be disabled by the Technical Service in the set up phase Rev 1 33 ENDOS AC ACP 120V DENTX USER S MANUAL General use instructions 6 2 ENDOS AC timer 1 O Q N 6 VA 4 1 X ray emission yellow LED 2 Ready for X rays ENDOS
36. 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 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 the manual and never for different purposes from the ones for which it has been designed 1 1 Icons in the manual d Indicates a NOTE we recommend particular attention in reading the subjects identified with this icon vw Indicates a WARNING subjects identified with this icon concern safety aspects regarding the patient and or the operator Rev 1 1 ENDOS AC ACP 120V DENTX er pem 2 SAFETY ASPECTS w 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 equipme
37. posure Exposure not started Non aperture of X ray relay DISPLAY signal Non closure of X ray co DISPLAY signal E22 ANOMALY type X ray relay does not open within 50 msec ANOMALY type X ray triac does not close within 50 msec X ray exposure Exposure finished by the safety timer BUZZER signal goes on ntrol X ray exposure Exposure not started Non aperture of X ray triac DISPLAY signal X ray relay closed at cy DISPLAY signal E24 ANOMALY type X ray triac does not open within 50 msec ANOMALY type X ray relay closed at X ray cycle enabling X ray exposure Exposure finished by the safety timer BUZZER signal goes on cle enabling X ray exposure Exposure not started Hardware timer intervention DISPLAY signal ANOMALY type Hardware timer intervention ENDOS AC ACP 120V X rays exposure Exposure finished by hardware timer 60 Checks and operations to execute Call Technical Service Checks and operations to execute Call Technical Service Checks and operation to execute Call Technical Service Checks and operations to execute Call Technical Service Checks and operations to execute Call Technical Service Checks and operations to execute Switch equipment off and start again if the trouble still exists call Technical Service Rev 1 USER S MANUAL DENTX Check an
38. rease E HHH cole lt D 0122860 e Exposure time more than 4 seconds In the start cycle phase X ray button pressed the actual exposure time is calculated according to the variation of line voltage When the time on the display is more than 4 seconds the time value will be calculated ES 4 20 seconds and simultaneously the green LED of operational will flash To reset this alert press any increase or decrease key gt DIO lt 0220 the equipment suffers a Software crash there is a safety timer the hardware that will cut off exposure after a maximum of 5 5 seconds Rev 1 55 ENDOS AC ACP 120V DENTX USER S MANUAL Messages on display e X ray button released before exposure end The X ray emission button is a dead man control so it must be 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 o E P JL 3 DIO class Before starting a new exposure replace the film to avoid a double exposure with meaningless diagnostic re
39. rection The X ray beam must be set horizontally in particular in the ortho radial direction regarding inter proximal spaces see Figure 14 in order to avoid a superimposition of the structures see Figure 15 RC RC 607606 Figure 14 Figure 15 Correct position Wrong position Legend Figure 14 and Figure 15 RC X ray beam ENDOS AC ACP 120V 46 Rev 1 USER S MANUAL DENTX Equipment use 7 3 2 Rev 1 Parallel technique Using this technique the film level is placed parallel to the tooth axis Owing to anatomic factors the film is generally kept away from the lingual surface of the tooth except for molars When it is introduced into the patient s oral cavity the film is fixed on a support to prevent distortion The patient holds the support itself near the teeth Various types of supports are available on the market to match the different types of teeth This technique enables you to get more accurate and more easily repeatable X rays compared with the bisecting technique see Figure 16 and Figure 17 HORIZONTAL SECTION Figure 16 VERTICAL SECTION Figure 17 47 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use 7 4 Exposure a b Operating on the main keyboard select exposure time as described in paragraph 7 2 according to the selected way Enable exposure by pressing key 3 Ready NOTE When the READY key is touched the equipment wi
40. rs canines incisives canines O E ar Ny NJ A 24 PREMOLARI MOLARI premolars molars pr molaires molaires Figure 10 Rev 1 43 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use OCCLUSAL 465 0 AAN DN IN HO HO NA MASCELLA MANDIBOLA upper jaw lower jaw machoire mandibule Figure 11 BITE WING o rc RAGGIO CENTRALE main beam rayon central Figure 12 ENDOS AC ACP 120V 44 Rev 1 USER S MANUAL DENTX E Equipment use 7 3 7 3 1 Rev 1 Exposure techniques This paragraph describes the different techniques generally used for intraoral exposure Bisecting technique Incidence X ray beam Vertical angle To get a real image of the tooth the X ray must be perpendicular to the bisecting line of the angle formed by the longitudinal axis of the tooth and by the film After positioning the X ray beam and the patient s head according to these criteria it is possible to apply an average vertical incidence for each area The incidence angle of the X ray beam can be correctly measured by the graded scale applied to the tubehead Figure 13 Legend Figure 13 A Tooth longitudinal axis B Bisecting line C Film level D Occlusal level RC X ray beam 45 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use X ray beam incidence Horizontal di
41. 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 9 ENDOS AC ACP 120V DENTX USER S MANUAL Description 4 2 3 Timer The name of ENDOS AC ACP depends on the type of timer in use e ENDOS ACP ENDOS ACP is a 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 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 Ei 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 1 USER S MANUAL DENTX Description 4 3 Configurations 4 3 1 Standard configuration Figure 1 Tubehead Scissors arm Extensi
42. splaying exposure time on the display calculated according to line voltage fluctuation compensation see paragraph 5 1 Rev 1 35 ENDOS AC ACP 120V DENTX USER S MANUAL General use instructions 6 3 Visual signals Equipment enabling signalling o When on the green signal at the top left hand corner of the keyboard shows Ready for X rays condition where a touch of the X ray button starts exposure This exposure enabled condition stays until the exposure ends or for a pre set time variable during set up between 10 and 30 seconds default 15 seconds after which the condition itself is disabled in this case you must reactivate by touching the corresponding key again NOTE When the READY key is pressed not only will exposure be enabled but the equipment will also start displaying exposure time on the display calculated according to line voltage fluctuation compensation see paragraph 5 1 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 NOTE If you touch the X ray button when the enabling signal is not active no exposure occurs at the same time the display shows the latest actual exposure time Signal X RAY EMISSION The yellow luminous signal at the top right hand corner of the keyboard is activated if X rays
43. sults ENDOS AC ACP 120V 56 Rev 1 USER S MANUAL Messages on display DENTX 8 2 Rev 1 Error signalling The ENDOS ACP and ENDOS AC timers are equipped with sophisticated diagnostics that allow you to monitor all operating phases and related safety devices Error messages which can be displayed are divided into three types e errors in the start up phase which require intervention on the part of the Service Engineer e re settable errors in the start up phase e errors found during the exposure phase The first type of error is found during the equipment start up phase if there is a non re settable condition alert the equipment stops and does not allow any operation The condition is deleted just by switching the equipment off and starting it again or proceeding as described in the table in the following page These anomalies have an error code of from 01 to E09 Re settable alert conditions stop some of the equipment s functions but they allow some operations These anomalies have an error code of E11 or E12 Errors found in the exposure phase can also cause the timer to stop the following exposures These anomalies have an error code of from E20 to E25 Refer to the following descriptions for each error type 57 ENDOS AC ACP 120V DENTX USER S MANUAL Messages on display 8 2 1 DISPLAY signal Non re settable errors ANOMALY type Ch
44. t 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 instrumentation 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 Equipment parts which may come into contact with the patient must be cleaned regularly according to the instructions given later in this document 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 Rev 1 3 ENDOS AC ACP 120V DENTX USER S MANUAL Safety aspects 2 2 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 WA
45. the increase key if you want to increase it Press key to confirm the selection and to access modification of the multiplication factor for Video X ray Digital see paragraph 7 5 3 NOTE If you do not want to modify the multiplication factor for Video X Ray Digital press key again ENDOS AC ACP 120V 52 Rev 1 USER S MANUAL DENTX Equipment use 7 5 3 Selection of multiplication factor for Video X Ray Digital NOTE This parameter is displayed only for ENDOS ACP version as the ENDOS version does not include the digital function selection use Rev 1 This particular function enables the operator to vary the length of X ray emission according to the sensitivity of the digital acquisition system in use The value shown on display is a X multiplication factor correcting exposure times in DIGITAL X RAY WITH AUTOMATIC ANATOMIC SELECTION The different available X multiplication factors are reported in the following table You must switch the equipment off to show this parameter on display switch it on again and when the words referring to the software version appear on display press key for a few seconds At first the words P13 referring to the multiplication Factor for the type of set film appear its modification is described in paragraph 7 5 2 Press key to confirm the selection and display the words P14 by pressing the increase or decrease key you disp
46. the equipment starts the tubehead cooling cycle 32 times the exposure time this situation is shown by the flashing of the machine enabling light while the time that must elapse before the pause end is shown on the display ENDOS AC ACP 120V 48 Rev 1 USER S MANUAL DENTX Equipment use g Ifthe exposure enabled key is pressed when the X ray button is already pressed the exposure is stopped and the related error will be signalled NOTE The real exposure time corrected according to the line voltage variation does not include the necessary pre ignition time so that the anodic current reaches 25 of the final value Rev 1 49 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use 7 5 Special functions The user has the possibility of displaying 3 functional parameters 7 5 1 Counting the number of exposures made From the stand by status it is possible to display the number of exposures made from the last resetting by the following procedure a Press simultaneously and hold pressed the keys increase and decrease for more than 3 seconds the display will show the message P20 Release the two keys b To display the figure related to thousands e g 001 press one of the keys increase or decrease 004 l c Press the key decrease to display the figures between 0 and 999 604 The example shown is the same as reading 1601 exposures 001 601 1601 To go back t
47. times you will hear an acoustic signal as the times vary Holding one of the keys pressed times increase or decrease quickly according to the respective scale bottom Manually selectable times are 33 and go from 0 02 minimum to 3 20 seconds maximum see Table 2 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 NOTE d See paragraphs 5 1 5 2 5 3 Rev 1 39 ENDOS AC ACP 120V DENTX USER S MANUAL Equipment use 7 1 3 Preparation of the timer for Digital Radiography Videoradiography use with automatic selection of exposure times only ENDOS ACP version NOTE This automatic program is used only if you have intraoral Video Digital Radiography equipment Press key 14 the related signal switches on and times displayed on the display will be reduced in comparison with the use of the equipment with films and anyway they will reflect the selection made Size Tooth a Digital X ray exposure is selected automatically by selecting one of the available times b To return to radiographic automatic selection press key 1 again NOTE The digital exposure time reduction factor can be modified by the Service Technician during setting up or directly by the user see paragraph 7 5 3 ENDOS AC ACP 120V 4
48. v 5 USER S MANUAL DENTX Technical data 5 6 SASS 1370 54 Rev 1 SOY IR TATED ATA PTT LI LIST 430 16 7 8 Overall dimensions FRONT VIEW 31 42 3 4 50 5 8 1430 1730 1930 20 JE 56 5 16 68 1 8 76 10 5 8 8 Figure 5 Overall dimensions wall version 120 1070 544 21 090 43 N Figure 6 Overall dimensions Mobile Stand version 29 ENDOS AC ACP 120V DENTX USER S MANUAL General use instructions 6 GENERAL USE INSTRUCTIONS 6 1 ENDOS ACP timer 1 18 I E 7 ENDO ACP 11 Re SU 214 l Q M Figure 7 Control keyboard ENDOS ACP X ray emission yellow LED Ready for X ray green LED Exposure enabling READY Size selection key Large size LED Medium size LED Small size LED Tooth anatomic selection key Bite wing LED o 0 00 Q N PF ENDOS AC ACP 120V 10 11 12 13 14 15 16 17 18 30 Upper molar LED Lower molar LED Premolars LED Incisors Canines LED Videography selection key Videography LED Increase key Decrease key Three figure display Rev 1 USER S MANUAL DENTX General use instructions All automatic selections are indicated by switching the relative luminous signalling at the bottom on the left of the symbol NOTE ENDOS ACP timer is provided with a
49. witch the equipment off immediately because there is undesirable exposure ENDOS AC ACP 120V 58 Rev 1 USER S MANUAL DENTX Messages on display 8 2 2 Non fatal errors in start up phase If during the TEST phase one of the anomalies considered to be RE SETTABLE occurs the equipment enters a condition where the Anomaly signal is kept on display until you press one of the increase or decrease keys which take the equipment back to the stand by status showing the exposure time on the display NOTE When the equipment gets more Anomalies simultaneously touching the increase and decrease keys at the same time will show all the errors found on display in sequence The equipment enters the stand by status only after the last display has been reset and highlighted to the user EXAMPLE Selection keys SIZE and TOOTH ANATOMIC already pressed at the Power on TEST we will have 1 D 230 gt IDLE ON The display signals the user the type of trouble found in the following way DISPLAY Acoustic signal ANOMALY Type signal SIZE selection key pressed at start up Absent Tooth ANATOMIC key pressed at start up Absent Rev 1 59 ENDOS AC ACP 120V DENTX USER S MANUAL Messages on display 8 2 3 Errors in exposure phase Non closure of X ray relay DISPLAY signal E20 ANOMALY type X ray relay does not close within pre set time X ray ex
Download Pdf Manuals
Related Search