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APC 300 - MedWrench

1. Change cylinder data Operating data Di E Display error list Error trace Display brightness splay error list K System diagnosis programs Instrument rinse parameters System safety Test functions E Status monitoring E Watchdog monitoring lt SWSR monitoring Exception processing E Stack monitoring E Flash memory LE Check sum lt Dose monitoring Self check Self check step 1 Self check step 2 Self check step 3 Self check step 4 Self check step 5 lt Display on activation lt Reset operational data recording Maximum Coded level instrument parameters System setup EZ Adjust argon flow Set flow Display measurements Store flow measurements Instrument recognition Instrument recognition Instrument measurements Store measurement E22 Activation recognition Activation recognition Activation measurements Store measurements Display memory page values Display page values Display elements 0 127 E Init error page Init system page Init application programs E Menu text in German Menu text in English f Menu text in French Menu text in Spanish Contents Chapter TE ana Page Safety notes for servicing eeuesssEEbEeSESCEEEESSEESEEAEEEEEKESEEERSEEEEEEESEESENEEEN 9 General Description of Clinical use uuusuuussnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 11 DEVS CaN NO
2. 72072 T bingen ce Ic11 REL2 REL3 REL4 al f Fe en rn LEE Deeg 3EN1 BA 3EN2 AB C4a Wiele Fusschalter Footswitch Diese Zeichnung ist urheber rechtlich gesch tzt daher Weitergabe und Vervielf ltigung ohne unsere Genehmigung unzul ssig IE Teen Tee BEE EE BE EE el A cher GEERT DEE e 3736 s ni 27 3 96 ae bs 38132 821 he Anderung potum none Blatt 2 von 3 Gerat UNIT APC Benennung Title Mainboard Ze ichnungsnummer DWG NO u 38132 821 72072 Tubingen 3EN1 BA 3EN2 AB c48 IG BC517 DU3 DU4 Vcc Fusschalter 5V Footswitch PORT2 Diese Zeichnung ist urheber rechtlich gesch tzt daher Weitergabe und Vervielf ltigung ohne unsere Genehmigung unzul ssig Gerat UNIT APC Benennung Title Mainboard Ze ichnungsnummer DWG NO u 38132 821 II TIPP ge o Rare Poe er ie 09 05 Fri es nee ae e Geor s 12 09 94 Bette BE E E TE un 48132 858 F 3568 e ancerungenitt a1 7 5q Priez XP Un 4013 050 GEES LP bs 30132 821 Ihe L zeen Jane nare Biatt_2 von 3 72072 Tubingen ee The microcomputer unit MCU 68332 30132 043 The MCU 68332 board assumes the central control and regulation of all processesin the APC 300 The components used are highl
3. 72072 T bingen Tele L oszeien or a6 Sn eri EE LF un 48132 07 ee LP bs 380132 86 Ger t UNIT APC Benennung Title APC TASTATUR Ze ichnungsnummer DG NO 38132 867 ALLS 8 Test and adjustment instructions Measurement equipment and testing facilities WARNING N Only use original ERBE measurement equipment and testing facilities e Flow meter suspended body device 0 1 l min to 1 l min scale 0 1 1 e Flow meter suspended body device 1 l min to 10 l min scale 0 5 1 e Manometer 0 to10 bar 145 psi class 0 2 FS e Pressure reducing regulator which can be set from 2 to 5 bar 9 72 5 psi output pressure e Connecting hose for connecting pressure reducing regulator to the APC 300 e Test hose with plug for connection between APC 300 gas output and the flow meter Test hose No 20100 022 e Connecting hose for checking for tightness e Stopper for the APC 300 gas output checking for tightness e Testbox 10 to 120 Q Test box No 20100 021 e Measurement line for connecting to Testbox Measurement line No 20100 023 Code level identification numbers WARNING A After entering the coded level you can delete or change the settings significant for safety 481 ENTER PROG DOWN System Setup 385 UP PROG PURGE Maximum instrument parameters 631 PURGE PURGE UP System safety test function DOWN 45 Adjustment of instrument recognition
4. input 4 Front panel instrument connection plan of outlet measurement line 2 4 line for instrument recognition SEERERERERT 109 200 302 390 510 6042 71502 8062 910 1029 1200 Testbox tolerance 1 Adjustment instructions 1 Plug measurement line into input 2 of the instrument connection Plug line for instrument recognition into input 4 of the instrument connection Connect measurement line and line for instrument recognition to the testbox R 0 120 Q Switch on APC pressing both UP and DOWN keys Enter code for calling system setup Call instrument recognition With UP key set R 0 Q APC display Instrument recognition Ohm 0 Set testbox R 0 Q APC display Instrument 0 Store with program key O oA ea a ee E Repeat steps 4 to 6 with adjustment R 10 120 Q APC display Instrument recognition Ohm 10 120 APC display Instrument 1 10 10 Adjustment check set testbox R 0 120 Q APC display Instrument 0 10 46 Adjustment of activation recognition input 4 Front panel instrument connection plan of outlet measurement line 2 5 line for activation recognition O V 9 G i I i e 109 200 309 39Q 510 60492 7150 80692 910 1020 1200 Testbox tolerance 1 Adjustment instructions 1 Plug measurement line into input 2 of the
5. Display output pressure shows all measurements and the mean of them with the associated pressure mbar Flow measurement range 1 shows all measurements and the mean of them with associated flow mL 68 Flow measurement range 2 and 3 shows all measurements and the mean of them with associated flow mL Display cylinder pressure 1 shows all measurements and the mean of them with associated pressure of cylinder 1 in mbar and the associated cylinder contents L Display cylinder pressure 2 shows all measurements and the mean of them with associated pressure of cylinder 2 in mbar and the associated cylinder contents L Instrument identification shows all measurements of the monitor and the mean of them for the instruments connected with the address determined and the actuation state Actuation identification shows all measurements of the monitor and the mean of them for the actuation number with the actuation determined and the instrument address Supply voltage 12 V shows all measurements of the monitor and the mean of them for the negative supply voltage with the voltage determined therefrom m Volt Reference voltage 10 V shows all measurements of the monitor and the mean of them for the reference voltage 10 V with the voltage determined therefrom mVolt Proportional valtve test The gas flow can be set by means of the up down keys and can be checked at the output outlet with the flow meter Relay and valve t
6. 12 mm fork wrench screw off the fastening nut e Pull off the outlet sleeve e Press the outlet through on the front and remove it Assembly e Put the new outlet in place on the front panel e From the interior of the APC 300 put the outlet sleeve in place note the guiding groove e Screw the M8 nut in place again and tighten using the 12 mm fork wrench e Put the gas hose in place and tighten with the sleeve nut 8 mm fork wrench e Close up the APC 300 again with the cover and screws 85 Changing argon cylinders This section describes the processes required for changing an argon cylinder with the APC 300 Required tools none For changing cylinders switch the APC 300 on or leave it switched on Removing a cylinder e Close the cylinder valve The cylinder valve may be a little stiff e Remove the pressure hose from the argon cylinder connection at the rear of the APC 300 e Put the opening of the pressure hose on the drainage bolt in place at the rear of the APC 300 and press it In the hose there is still a small amount of argon This will now escape with a hissing noise e Screw off the sleeve nut of the pressure reducer by hand in a counter clockwise direction and remove the pressure reducer e Screw the valve protection cylinder cap onto the empty argon cylinder e Lift up the cover of the APC 300 gas cylinder compartment by its handles and remove the cover e Remove the gas cylinder Putting a cylinder in pla
7. Usually line fuses are not faulty without cause For this reason if a line fuse is defective you should always consider that there may be another internal defect which has blown the fuse Only in rare cases does the fuse get blown by short term peaks of current In such a case the APC 300 is functional again after the fuses have been changed Otherwise the cause of the overload must be found e g short circuit in the power circuit short circuit in the switching power supply overloading of the the switching power supply 78 Changing the device outlet with the power line filter This section describes the removal and fitting of a device outlet combined with a power line filter and mentions various safety measures which should be taken Required tools Indented cross screwdriver no 1 8 mm screwdriver Unplug power cable from the outlets from the device as well as from the power supply end Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Remove the power lines and the protective ground conductor connection from the power line filter output in the interior of the device CAUTION IN Please note or write down the colours of the connection leads and their positions It is important for all leads to be returned to their original places after exchanging a part Brown strand towards the centre of the device blue strand tow
8. a pushbutton key When the key is pressed the transformer UE 1 is damped depending on the resistance value from which the APC 300 can recognize an actuation intention Actuation identification The circuit can recognize 10 different values The other resistance in the instrument is permanently connected to transformer UE 2 and damps it By varying the resistance 10 different states can be decoded This is the means by which the APC 300 can recognize up to 10 different instruments whereby the APC 300 can call the operating modus allocated to the respective instrument Instrument identification After an active band pass IC 7 R 31 R 36 C 23 C 24 and C 26 which filters the high frequency interfering signal the signal damped by the measurement resistances is rectified by the Schottky diode D1 The capacitor C 13 forms a mean of the signal together with resistance R 9 The rectified signal produced thus is decoupled via the fourth OP of the IC 3 as voltage follower and fed to A D converter IC 13 The digitized voltage value is evaluated in the MCU The APC 300 can be actuated both via a footswitch and via the handle of the surgical instrument Parallel to the APC 300 the accompanying electrosurgical equipment must also be actuated since the high frequency voltage is required to ignite the argon plasma The electrosurgical equipment is to be controlled from the APC 300 with potential separation via the footswitch cable For this reason a
9. and close up the device again by by screwing the device cover on Exchanging the loudspeaker on the rear panel This section describes the exchange of the loudspeaker for the audible signals Required tools 5 5 mm outlet driver for M3 nuts 8 mm screwdriver Unplug power cable from the outlets from the device as well as from the power supply end Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Remove the two AMP plugs of the loudspeaker lead Loosen the three M3 fastening nuts of the loudspeaker by three turns Remove the uppermost M3 nut complete with its support washer Now the loudspeaker can be lifted out Put the new loudspeaker in place again so that the flange of the loudspeaker is located under the two lower support washers Put the upper support washer in place again with its M3 nut and screw the nut onto the thread Now you can carefully tighten all three fastening screws Replace the two AMP plugs on the lead Try out the loudspeaker Close up the APC 300 again with the cover and screws 83 Exchanging the gas connections on the rear panel This section describes the exchange of the gas connections on the rear panel of the APC 300 Required tools 8 mm fork wrench 12 14 mm fork wrench mm fork wrench 8 mm screwdriver 84 Unplug power cable from the outlets from the device as well as
10. chenbe Ma stab Lich gesch tzt daher Weitergabe ittel schaffenheit n DIN und Vervielf ltigung ohne unsere EEE00255 Cenehmigung unzul ssig APC300 Datun Nome Benennung Gezeich 28 03 95 Reusch beoru11 28 03 95 Barter APC Pneumatik Schaltbi ld Zeichnungsnummer 10132 010 4 72072 T bingen ES EEN 3 a oO The fluorescent display tube 50602 039 The purpose of the fluorescent display tube is the provision of visual communication between the APC 300 and the user The display is graphical The graphical interface gives the user information about the fill level of the argon cylinders the cylinder currently in use the program set the accessories connected the parameters set and the current values The menu based selection made possible by the graphical display of the APC 300 simplifies operation considerably The display receives its data via the main board from the MCU Storage of the display data is updated in regular short intervals The data is then written once again from the MCU into the RAM of the display The fluorescent display is an industrial standard model Therefore the function of the circuit will not be described here The components used are highly integrated and applied to both sides of the printed circuit board as surface mounted devices SMD As it is exceedingly difficult to locate errors and repair this circuit board it is recommended that no attempt
11. device connection external pressure regulator 1 or 2 sensors p1 or p2 mainboard electronics Check connection hoses and gas cylinders valves and pressure reducers If no error can be found here call in techn servic Is error number 13 No input yes pressure Condition doeg not hold 63 Operating error during switch on phase If un Key on front Let go keys successful yes panel is when replace pressed switching on keyboard PC board Ge Let go of Is error number 150 Error corrected Ifun Is error number Footswitch yellow successful 4160 yes signal CUT is footswitch key ti Ee Error corrected no present when y ewing SEN footswitch switching on yes Let go of blue If un Footswitch a Is error number footswitch key successful 2 161 yes EE when try unscrewing Error corrected no P switching on footswitch yes End no If un successful try disconnecting accessory Finger Let go of switch yellow finger yes signal CUT switch key when switching on is error number 165 Error corrected is present yes no End Finger Let go of blue itun g successful Is error number switch finger switch t Error corrected 166 signal COAG key when ry SE disconnecting is present switching on accessory Call in techn Error in the ser
12. from the power supply end Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Undo the sleeve nut using the 12 mm fork wrench then screw it off by hand and slide it over the gas hose Remove the gas hose Undo the gas outlet using the 14 mm fork wrench Unscrew the nut Remove the toothed lock washer Remove the gas outlet outwards Slide in the new gas outlet from outside Put on the toothed lock washer from the interior of the APC 300 Screw in fastening nut and tighten using the 14 mm fork wrench Put on gas hose to which the sleeve nut is still loosely attached Screw in the sleeve nut by hand and tighten using the 12 mm fork wrench Check the APC for gas leaks Close up the APC 300 again with the cover and screws Exchanging the gas connection outlet on the front panel This section describes the exchange of the gas connection outlet on the front panel of the APC 300 Required tools 8 mm fork wrench 12 mm fork wrench 14 mm fork wrench 8 mm screwdriver e Unplug power cable from the outlets from the device as well as from the power supply end e Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Dismantling e With the 8 mm fork wrench screw off the gas connection and pull out the hose e With the
13. not be thrown and must be secured against tipping over or falling down e g with chains clamps or other fasteners GAS CYLINDERS must be protected from heaters and open fires Never transfer gases from one PRESSURIZED CYLINDER into another The valve connections must be kept clean CYLINDER labels e g stickers must not be damaged or removed The valves and fittings on ARGON CYLINDERS must be kept free of oil and grease GAS CYLINDERS which are damaged e g damage to valves fire damage must not be used They must be labeled clearly and the gas supplier must be asked how they are to be treated GAS CYLINDERS may only be transported with permitted valve protection e g valve cap and with sufficient security against slipping or rolling about 71 72 Gas leak in system Go to Is there a leak only during Gas leak in outlet activation of the APC yes section of APC 300 Open the quick connect coupling of the gas connection at the rear of the APC 300 Go to Gas leak in high Is there still a leak s there still a lea yes pressure component Go to Gas leak in D inlet section of the APC 300 Gas leak in inlet section ofthe APC 300 Can you see any hose that has come loose yes Re attach hose no Use a hose as an ear trumpet with which to locate the hissing of the lead or use soap solution to find bubbles at the leak point WARNING Loi conductive materi
14. of the APC 300 Circuit description of the APC 300 The Argon Plasma Coagulator APC 300 consists of the following components and circuit boards main board 30132 021 MCU 68332 30132 043 front panel 30132 067 switching power supply 40132 101 pneumatic control block complete 40132 090 fluorescent display tube 50602 039 The circuit diagram shows the links between the different function groups The different function groups are each described individually 27 The main board 30132 021 The main board contains the following function groups e 4 pressure sensors e A D converter with serial data transfer e monitor for instrument and actuation identification e footswitch control unit e controller of the proportional valve e controller of the other valves with valve drives e controller for the signal tones e level converter e connectors to the MCU unit and the display e clock pre scaler target memory and bus driver The main board contains four pressure sensors IC 21 to IC 23 with which the e cylinder pressure of cylinder 1 with IC 23 measured quantity p 1 e cylinder pressure of cylinder 2 with IC 24 measured quantity p 2 e output pressure with IC 21 measured quantity p 5 e differential pressure with IC 22 measured quantity p 3 p 4 corresponds to actual flow can be measured The pressure sensors are connected via hose connections to the pneumatic block of the APC 300 The output
15. outlet and connect it to one of the foot switch outlets at the rear of the electrosurgical unit Please refer to CHAPTER 8 Actuation configurations gt in APC 300 Handbook to discover which outlet and which lead is used for which configuration Power cord WARNING Only connect the APC 300 using the power cord supplied by ERBE or one of at least the same quality to a properlyly installed grounded socket The power cord must bear the national mark of conformity If you use the equipment cart provided by ERBE the power cord of the APC 300 is connected to the outlet of the cart For safety reasons multiple outlets and extension cords should not be used If their use is unavoidable they too must be provided with proper protective grounding Please read the section Electrical installation on the equipment cart in the Handbook CHAPTER 3 entitled Installa tion gt Potential equalization connections To avoid high frequency disturbance and to protect the patient connect the potential equalization pin of the APC 300 to the equipment cart via potential equalization conductors Loudspeaker Over the loudspeaker of the APC 300 actuation and warning signals are emitted Always place the APC 300 the equipment cart in a position where the audible signals can be heard clearly 21 Foot switch outlet A single or two pedal foot switch can be connected to this socket Please refer to CHAPTER 8 entitled Actuation configurations in APC 300 Han
16. pressure is 2 5 bar 36 25 psi The APC 300 must be modified by a technician if a central argon supply is used Connecting argon cylinders The input pressure at cylinder connections 1 and 2 of the APC 300 may not exceed 4 5 bar 65 25 psi ERBE advises working with two argon cylinders with a volume of 5 liters and a pressure of 200 bar 2900 psi The APC 300 has been programmed by ERBE to operate with this type of cylinder If you wish to use other types of cylinders you must reprogram the cylinder data in the menu Argon gas information under menu point Changing cylinder data To change cylinders the APC 300 must be switched on Unmounting cylinder 1 Shut the cylinder valve The cylinder valve may be a little stiff 2 Remove the pressure hose of the argon cylinder at the rear of the APC 300 3 Place the hose opening on the drainage pin at the rear of the APC 300 and press The hose contains a residue of argon which escapes with a loud hissing noise 4 The union nut of the pressure reducer should only be unscrewed to the left and removed by hand Mounting cylinder 1 The pressure reducer should only be screwed onto the new cylinder to the right by hand 2 Open the cylinder valve 3 Put the pressure hose onto the cylinder connection of the APC 300 The system will now automatically be rinsed with argon by the APC 300 If the presure hose and pressure reducer are fitted tightly no further hissing noises should be audible 1
17. shield plate towards the centre of the device Now the power switch is accessible from the interior of the device Unplug the power voltage connection on the power control board By hand or with a screwdriver press out the power outlet from the inside The power outlet will come away from the front panel Remove the power outlet completely from the front panel the power switch leads are long enough for the switch to be replaced easily Make a note of the color allocation of the connection wires brown towards the interior of the device blue towards the side panel Remove the plugged connection wires Exchange the power switch only with an original part Re plug the leads For the allocation of the wire colors see above Press the power switch into the opening in the front panel provided On the power switch rocker arm the red zero points upwards Plug the plug into the power control board again Arrange the connection lead to the device outlet again Fasten the aluminum rear wall of the front panel again using the support washers and stud bolts so that the gap between the aluminum rear wall and the front panel is as small as possible Close up the APC 300 by screwing the device cover on again Perform function and safety check Exchanging the power control board This section describes the exchange of the power control board in the APC 300 Required tools 8 mm screwdriver 6 mm outlet driver e Unplug power cable from th
18. signals of the pressure sensors are amplified in the instrument amplifier IC 15 to IC 19 and then fed to the A D converter IC 13 From here the digital signals are transferred via a serial connection to the MCU 68332 For small flow values the output signal ANA2 of the OP amplifier IC 16 can be further amplified in the OP IC 17 so that the output quantity ANAS is better adjusted to the shift of the A D converter and can be processed more efficiently The A D converter IC 13 converts the analog measured quantity of the the pressure sensors the monitor output voltage U_KENN the reference voltage Ref 10 V and the negative supply voltage Vee 12 V into digital quantities and transfers these in queued serial mode to the MCU 68332 The operation amplifier IC 14 amplifies the reference voltage formed by the A D converter from 2 5 V to 10 V In order to detect errors in the APC 300 the amplified reference voltage is compared with the negative supply voltage The APC 300 allows various accessories to be connected which must each be operated with the optimal gas flow defined for them It is thus advantageous for the APC to be able to identify automatically which accessory is currently connected in order to be able to select the optimal setting automatically Equally the APC 300 can identify whether and when it is actuated via an instrument In order to realise this function a monitor which can identify which instrument is connected to the APC 300 and
19. there is an output pressure of 2 5 bar 36 25 psi and for a cylinder pressure of 10 bar 145 psi there is an output pressure of 4 5 bar 65 25 psi Between these two extremes the dynamic expansion curve is linear so that by measuring the output pressure the cylinder pressure can be deduced at any time For this reason after the pressure reducer a pressure converter is connected to each of the two cylinders This device converts the physical quantity pressure into an electrical voltage which can then be measured in the APC 300 thereby allowing the cylinder pressure and thus the fill level of the argon cylinder to be deduced In the pneumatic unit after the pressure sensor there is an electrically controlled valve V1 or V2 with which the two argon sources can be actuated or switched off at will The subsequent proportional valve permits the gas flow to be dosed via its variable electrical control The gas flow is measured by the pressure reduction at a nozzle The differential pressure p p3 p4 is a measure for the gas flow in analogy to the voltage decrease at a resistance in an electric circuit in which the voltage decrease at the resistance is a measure for the current flow Parallel to the nozzle a bypass can be switched via valve V4 which lets a larger volume of gas through than the nozzle and thus extends the measurement range of the nozzle to larger flows Valve V6 releases the output of the APC 300 to the instrumen
20. which actuation state it is in is required The circuit diagram of the instrument and actuation identification monitor is in the right hand half of sheet 1 of the main board 28 In priciple the monitor is an oscillator whose signal is caught via a transformer and fed to the instrument in order to separate the potentials This oscillator can now be damped to different degrees with the defined resistances in the instrument by means of which the amplitude of the oscillator changes The change in amplitude is evaluated In the present circuit the left hand part of the OP amplifier IC 3 represents an oscillator which oscillates at a frequency of about 60 kHz The oscillator can be switched on and off via transistor T 1 The oscillation produced is fed to two OP amplifiers of the circuit IC 3 in turn which function as a voltage controlled current source due to their inverse feedback via resistance R 24 and feed the transformers UE 1 and UE 2 Transformers UE 1 and UE 2 are alternately switched against ground by the MCU via the target memory IC 4 and the transistors T2 and T3 so that each of these transformers is actuated alternately for about 6 msec In this manner the alternately damped signal can be unambiguously attributed to the instrument or actuation by the MCU Via the plugged connection J 11 leads go to the surgical instrument connected in which there are two defined resistances One of these resistances leads to transformer UE 1 via
21. you will be asked to state one or more elements ATTENTION When you call this menu item the error list and the error trace list on the main level of the APC are deleted You can then no longer view the stored errors of the users WARNING IN Initializing the system page When you select this menu item you delete the adjustments for argon flow instrument recognition and activation recognition Before using the APC all adjustments must be input again If you do not do this the error message 1201 system page not initialized appears Initializing the application programs WARNING IN When you select this menu item you delete all application settings You initialize the standard settings of the APC These are the same for all programs 52 Standard settings on initializing application programs COAG flow Permissible output Preferred l min pressure mbar psi function cylinder no peewee LEERE efron je i es Je bene CC fe fe fon fen DSDS CH ECT CHE CE ooo fo CT foe i DSDS CC 0 Terme een ramne frame oee On initializing application programs the activation tone for CUT COAG PURGE is set to medium volume 53 Limiting parameters COAG flow l min CUT flow l min CO En E SEE C E C E EE EC C CN EH ZU ES E ES E ES EN not yet used not yet used not yet used not yet used 54 Standard settings in the rinse parameters program rinse flow rinse duration l min sec fo not yet used not yet us
22. 132 004 2 20132 037 Part International fuse T1 0 A 250 V 5x20 mm Fuse UL T1 0 A 250 V 5x20 mm Device outlet with power line filter Power switch Power control board Footswitch outlet Output for actuation signals Loudspeaker Argon cylinder connections at rear Argon outlet on the front panel Argon cylinder 5 1 International Argon cylinder 7 1 UL 87
23. 28 PC53 AVEC FETE FL_DE RPT BRPTZDSCLK TSB00T CSBOOT K IPIPE 4 _ TPIPE DS BR CSO te READ FETCH TFETCH DS1 BG CS1 4114 TST ROE FREEZE FREEZE QUOT BGACK CS2 co EE TETE STMEZTSC Fca ts3 3 RESET Fc1 C54 T54 USTBY USTBY FC2 CS5 Heg Ces Ier CLKOUT 66 ELKOUT 61 JUCCSYN MODCKL2E MODCK L uw sims EXTAL Diese Zeichi ist urhebi 2 est chnung st urheber a XFC 68332 XTALLEA rechtlich gesch tzt daher 5 1a8nF 1 8nF em ot T Ucc ae GE 188nF E o e er E L Z Lagu u EI wo 3 W T ege c18 Z ege CR EE SS 2 22pF L e Jr el x 18M 2118 a ONE k 22pF 40132 854 LP bs 38132 943 Blatt 1 von 3 Weitergabe und Vervielf ltigung ohne unsere Genehmigung unzul ssig Benennung Title MCU68332 Ze ichnungsnummer DLG HO 72072 Tubingen Ze chnunssnunne Ze ABUS Ice 74HC154 ABUS PORT2 ABUS Diese Zeichnung ist urheber B Datum Name rechtlich gesch tzt daher Gerat UNIT H p9g i Weitergabe und Vervielf ltigung Gezeich B8 89 94 Fritz ohne unsere Genenmigung V unzul ssig z Gepr ft Benennung Title PP un 40132 054 ERBE MCU68332 LP_ bs 38132 043 er 72072 T bingen Blatt 2 von 3 Ze ichnungsnummer DWG NO 38132 0843 8E PFI PORT2 PORT3 GND Ic PORT2 PoRTe PORT3 Uce
24. 7 Cyllinder valve Union nut Drainage pin Pressure hose Connecting pressure hoses NOTE The CE 0124 sign is not on the UL version 18 5 Description of the front and rear panels Diagrams on folding leaf clockwise Operating elements on the front panel Display On the display the graphical interface shell of the APC 300 is shown The shell is the interface between the operator and the unit s software Using the shell the instrument s COAG flow and CUT flow as well as all the functions of the APC 300 can be controlled and the unit modified to suit your requirements See CHAPTER 7 Description of the graphical interface of the APC 300 in APC 300 Handbook gt UP pown buttons The up Down keys are used to set the flow parameters For instance up increases COAG flow down decreases COAG flow In addition the up Down keys are used for marking menu items in selection menus All the APC 300 s menus have the same structure There is a cursor in the second line If you press the up or down keys the cursor runs up and down the menu items Procram button The APC 300 possesses 13 application programs Using these you can among other things program and store COAG flow and CUT flow settings for a particular instrument Using the program key the selected application program is started Enter button The enter key is used to alternate between the standard display and the program selection menu and for callin
25. APC 300 Service Manual 09 1998 V 2 xx ISO 9001 APC 300 No 10132 010 Standard Version EN 46001 0124 ISO 9001 APC 300 No 10132 011 UL Versi SE EN 46001 Manual part number 80116 121 for APC 300 International and UL Version All rights reserved No part of this document may be translated stored in information retrieval systems or transmitted in any form or by any means electronic or mechanical including photocopying recording or otherwise without the written per mission of ERBE Elektromedizin Printed by ERBE Elektromedizin Printed in Germany Copyright ERBE Elektromedizin GmbH T bingen 1998 ERBE APC 300 Service Manual Front panel Display Up Down buttons Enter button Program button Purge button a gt ERBE APC 300 COAG Lmin CUT Lmin PO a gt SPULEN PURGE PURGER 1 8 2 2 lt Menu l A O D ss x Z Mains switch Electrosurgery inputs Multiple socket Argon socket l Instrument sockets Imprint at the top cover of the UL version Caution Warning Before connecting and for additional instructions for the use of Hazardous RF output current this equipment refer to operating instruction manual This equipment is for use only by qualified medical personnel Caution Danger Electrosurgery may present a hazard to patients with pacemakers Exp
26. C17 and R1 conducts a sound formation to make the tone sound more pleasant The tone frequency is amplified in amplifier IC 2 in such a way that a loudspeaker can be operated via plug J 3 The hex buffer IC 9 acts as a level converter which converts CMOS levels into TTL levels e g the footswitch signals FA and FB The frequency divider IC 4 divides down the clock frequency for operating the A D converter IC 13 The microcomputer unit MCU 68332 is positioned directly on the main board via two multiple plugged connections 30 LE Druck REF1BU ANAL R11 oe 2 12U 5 158R TLaB4 DEE 1C3 T SCX3 DN Dif Druck REF 10U 22nF ru D J15 SCX SDN 1 EA aye T3 Flaschendruck 1 UN18KM 3 GND REF 1 U ANA2 SCX1 BCAN 4 Flaschendruck 2 REF 10U SCX1BBCAN 4 1 T1 UN18KM OSZI_ON 3 GND Fs Datum name Diese Zeichnung ist urheber F Datum Name rechtlich gesch tzt daher APC i a m 4 Weitergabe und Vervielf ltigung Gezeich 12 89 95 M Fritz one unsere Genehmigung VIN1 SMODE VIN2 SDOUT VIN3 SDIN VIN4 SCLK VINS A RFS VING REF 10V R42 CLKIN REF CONUST GND EST A A 12 89 95 J Be Liege Benennung Title Anderungsmitt 31 7 96 Fritz LP un 48132 850 3736 s Anderungsmitt LP bs 38132 821 Ihe Anderuna potum none Blatt 1 von 3 Mainboard Ze ichnungsnummer DLG HD 30132 821
27. E BE 13 Gas SUP DIY DOREEN SREREEENEEEER RENNER BEINEN EEEEENEEREE EEE SERNEEEHEEEHEEEEEEREEREE ERROR 17 Description of the front and back panels uuunssnnnnnnnnnnnnnnnnnnnnnnnn 19 Technical Data 2 2 22 00u44002000020 00000000 una uE Un nung mE anna inkasa nanena nina a 23 GIFCUIE descriptions e 4u 44s amp 000 0220500u0000 020000000 0nRERRREn HRS ag Herren 25 Circuit diagram of the APG BOC ut 26 Circuit description of the APC 200 27 Thema VN ae nee nee 28 The MiIerogomputer UNI user are tree 34 TRE PREUMANE UNI area ee 39 The fluorescent display tube AANEREN 41 The switching power supply 222 uumus4444444000n nn nnnnnanannnnnnnnnnnnannnnen 42 The APG keyboard na N 43 Test and adjustment instructions unsesnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennnn 45 Measurement equipment and testing facilities un nenn 45 Tools for loading the program code nenn 45 Code level identification numbers 2222222222224224424442000000200n20nn0nnnnnn 45 Adjustment f activation TOGO CTO zen ren 46 Adjustment of argon Tow 47 MOST MUNG MONS EE 48 Checking for leaks u a anne ainn i ira ieies 49 Testing footswitch signals to the surgical equipment 50 Continuous E 51 Memory page values initialization uss 444444444HnnnnHHn nennen nn 51 Standard sallings sessioissa erene E EE ERKENE 52 Limiting Baramelers ei 53 Standard settings in rinse parameters prog
28. ES 5U PORT1 EDBUS EDBUS EABUS CLKOUT mm a m c32 I ECS m ZS KE a J3 15 4K7 Uer Ucc Uer Ucc Uce s A tele ml TSTFE a nee 50 e50 Tesu Tag 1450 e a 4 a BERR 5U 1450 ou Eule T eo Les LE mm Sok KN oo ou on eum su su e GND 2 w_8__ FREEZE euje P1 nr Si Se a9 a9 gs S VCC RESET gl l 10 FETCH Pope GND GND GND GND GND GND GND Kal Ir A A Geh erin GND oe CC Toezeion bo 09 3a ritz sien Cal LE mem un 48 132 854 LP bs 38132 843 Benennung Title MCU68332 72072 T bingen The pneumatic unit 40132 090 The function of the pneumatic unit is to control and record all quantities concerning the argon gas It represents the link between the argon supply cylinders and the surgical instruments in the APC 300 The argon in the steel cylinder is compressed to a pressure of up to 200 bar 2900 psi when the cylinder is completely full This pressure is too high for direct operation of the APC 300 Therefore it is first lowered to a maximum operational pressure of 4 5 bar 65 25 psi using a pressure reducer The output pressure of the pressure reducer is however not kept exactly constant but it adjusts itself according to the dynamic expansion curve of the pressure reducer The dynamic expansion curve represents the output pressure of the pressure reducer in relation to the input pressure cylinder pressure Thus for example for a cylinder pressure of 200 bar 2900 psi
29. Electrosurgical unit The electrosurgical units ERBOTOM ACC 450 and ICC 350 are equipped with a high frequency leakage current monitor which samples for high frequency leakage current in the grounding and potential equalization conductors in these units For this reason the units must be installed on the APC 300 in such a way that their cases are not in electrical conducting contact with the APC 300 casing i e the aforementioned electrosurgical units must be electrically insulated and installed on the surface provided on the APC 300 Location of equipment cart in the operating theatre If the electrosurgical unit and the APC 300 are installed together on an equipment cart this system must be kept outside any operating theatre subject to danger of explosion Read the operating instructions of the electrosurgical units under Explosion protection gt 13 Electrical Installation on the equipment cart Only connect the APC 300 using the power cord supplied by ERBE or one of at least the same quality to the equipment cart s power connection The power cord must bear the national mark of conformity The power cord is connected to a properly installed grounded outlet Apart from the APC 300 and the electrosurgical unit no other appliances must be connected to the mains outlets of the equipment cart For safety reasons multiple outlets and extension cords should not be used If their use is unavoidable they too must be provided with proper pro
30. MCU l data no Cause of error Call in cannot be technical located by service user Is error number between 450 and 511 yes NM System error no Condition does not hold 66 Service support through test programs As has already been mentioned several times extensive hardware and test software is integrated in the APC 300 to discover device and operating errors and to present these to the user in plain language on the display When it is switched on and after every cylinder change the APC 300 conducts a self check in which a large number of functions is tested and evaluated During operation of the APC 300 the device also continually tests the safety of operations and that specified limit values are maintained and presents deviations from normal conditions immediately on the display In this way the user has optimum conditions and can concentrate on his or her work The technician too can call up a stored list of the errors which have arisen with hints of the possible causes of the error in plain text in the selected language Thus it was possible to use these test routines for troubleshooting purposes and is why it was possible to greatly reduce the extent of the error trees in the error search routine To support the service technician there are other system diagnosis programs besides the test functions mentioned programs which simplify the error searching process even further Some of these diag
31. als Replace Is the pneumatic unit leaky yes pneumatic unit or repair leak Re connect respective hose Only use an ear trumpet which is made of electrically non 73 74 Gas leak in outlet section of the APC 300 Can you see any hose that has come loose yes Re attach hose no Use a hose as an ear trumpet with which to locate WARNING the hissing of the lead or a i use soap solution to find Only use an ear trumpet which is made of electrically non bubbles at the leak point conductive materials Replace Ie it Verde yes pneumatic unit or y repair leak no Re connect respective hose Gas leak in the high pressure component of the system Use a hose as an ear trumpet with which to locate the hissing of the lead or use soap solution to find bubbles at the leak point WARNING N Only use an ear trumpet which is made of electrically non conductive materials Have you discovered where the leak is Call in technical service yes Replace the pressure reducer with a new one Is the pressure reducer itself leaky yes no Try to tighten the Is any joint leaky yes joint Is the joint now tight Problem es y solved Tighten the respective hose clamp or replace the hose Insert a new seal 75 76 11 Exchange of components and assemblies Exchange of components or assemblies Thi
32. ample replacing defective fuses power supplies outlets and display lamps as well as replacing the power control board and the display Further repairs such as replacing the main board and the microcomputer circuitry necessitate a new adjustment of the entire unit for which extensive knowledge and the pertinent measurement instruments are necessary The troubleshooting process therefore supports the jobs which are possible including replacing printed circuit boards whereby it is necessary to point out that more detailed error searches require a new adjustment and an authorized service technician 58 APC 300 appears to have broken down Device doesn t react when switched on yes no There is a reaction but nothing visible on display yes no Display is functioning and displays error numbe and text yes no Garbage on display yes no Go to No reaction from APC 300 Go to Device reacts but nothing visible on display Go to Display is function ing error number and text are displayed Internal error Call in techn service 59 No reaction from APC 300 Is voltage at socket OK yes Is the mains lead plugged into the APC Is the APC mains switch at ON position Remove fuse in power supply and measure voltage across the fuse contacts Is the voltage equal to the power supply voltage Replace fuse i
33. ards the side panel yellow green strand in the centre Now remove both the cross recessed screws from the exterior of the device outlet Pull the device outlet with the power line filter backwards Replace the device outlet with an original component with a power line filter Push the device outlet from the rear into the rear wall and screw in again Now the leads going into the device are re connected to the power line filter To do this the cable outlet is placed on the contacts of the power line filter The leads must be connected in their original configuration same wire colours in same positions Close up APC 300 again Transfer the line fuses from the old device outlet to the new one testing whether the nominal data of the fuses agree with the nameplate If necessary the fuses must be replaced with others which comply with the regulations 79 Changing the power switch This section describes the removal and fitting of a power switch in the APC 300 Required tools 8 mm screwdriver 5 0 mm outlet driver 80 Unplug power cable from the outlets from the device as well as from the power supply end Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Remove the aluminum shield plate at the interior of the front panel by unscrewing the three hexagon stud bolts Carefully pull out support washers Slide the aluminum
34. ce e Make sure that the full cylinder is undamaged Damaged cylinders must not be used Make sure that nothing else besides ARGON is in the full cylinder because the APC 300 may only be operated with ARGON e Unscrew the valve protection cylinder cap from the full argon cylinder e Place the cylinder in the cylinder compartment e Insert the cover of the cylinder compartment again e Screw on the sleeve nut of the pressure reducer by hand in a clockwise direction onto the new cylinder e Put the pressure hose in place on the free cylinder connection of the APC 300 e Open the cylinder valve The APC 300 system will now by rinsed with argon automatically If the pressure reducer and the hose is tight no more hissing should be audible after the rinsing process If the hissing lasts for more than two seconds from the time the argon cylinder is opened there is a leak through which the argon is flowing continually In this case the cylinder valve must be closed again immediately Before using the APC 300 with this cylinder the leak must be located and repaired For further details please refer to the operating instructions Chapter 6 and the section entitled Notes on safety 10 rules for working with gas cylinders 86 12 List of components and assemblies mentioned in Chapter 11 Oty Part No 2 51611 054 2 51611 089 1 51400 012 1 50502 069 1 40132 101 1 51604 00 1 51604 077 1 50610 009 2 51708 043 1 30132 118 2 20
35. dbook gt to discover which outlet is used for which concept Drainage opening During the self check argon is expelled through this opening 22 6 Technical Data Technical Data APC 300 Typ Sp No 10132 010 Standard version APC 300 Typ Sp No 10132 011 UL version Supply voltage 100 230 V 50 60 Hz Current input 0 3 A Mains fuse T1A Protective Class according to CF EN 60 601 1 IEC 601 1 Potential equalization Yes Cylinder connections 2 connections 2 cylinders 5 recommended Input pressure of cylinder connections when gas cylinders are connected Minimum 2 5 bar 36 25 psi maximum 4 5 bar 65 25 psi Maximum input pressure of cylinder connec 2 5 bar 36 25 psi tions when central gas supply is connected Maximum cylinder pressure 200 bar 2900 psi 99 998 from 0 1 l min to 9 l min regulated argon flow with pressure limitation Minimum purity of argon Maximum gas flow rate Modes of actuation Foot switch or finger switch Automatic instrument identification Yes Automatic flow setting Yes Plain language error messages Yes Weight of APC 300 6 8 kg Size of APC 300 WxHxD 410 x 105 x 380 cm WxHxD 161 x 41 x 150 inches 410 x 820 x 445 cm 161 x 213 x 175 inches Size of equipment trolley 23 24 7 Circuit diagram circuit descriptions The circuit diagram of the APC 300 In conjunction with suitable electrosurgical equipment e g from the ERBE ICC series the Argo
36. e outlets from the device as well as from the power supply end e Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed e Unplug the two plugged connections of the power control board e Unscrew the four stud bolts with which the board is fastened to the housing e The power control board can now be removed and replaced by an original part e Screw the four stud bolts on again e Plug the two plugged connections in again e Close up the APC 300 by screwing the device cover on again e Functional and safety check CAUTION A The power control board is adjusted in the manufacturer s factory The trimming potentiometers are sealed and must not be moved WARNING IN Take care when touching parts in the interior of the open device while the device is connected to the mains Always unplug the mains cable if this is possible Various components of the switching power supply are at mains voltage and must therefore only be touched by an instrument not connected to the mains If possible use an isolating transformer For measurements with the oscilloscope or other measuring instruments the measuring point MP 8 is provided as ground reference 81 Exchanging the footswitch outlets This section describes removing and fitting the footswitch outlets at the rear of the APC 300 Required tools 8 mm screwdriver 2 5 mm screwdriv
37. ed not yet used not yet used 55 56 9 Finding errors Finding errors in the APC 300 If your APC 300 is not functioning as expected please first re read the operating instructions of the APC 300 to confirm how a unit is intended to function This will help to determine what in comparison is not functioning properly in your unit Sometimes an operating error or a improper setting is the cause of a suspected error which can be determibed by reviewing the operating instructions If you still have problems with your APC 300 the following sections of this manual should be able to help you locate and correct any error In the remaining part of this manual APC 300 error messages concerning the electronics and the argon supply are discussed Further information about the function of the APC 300 are to be found in the section of this manual entitled Circuit descriptions WARNING IN Take care when touching parts in the interior of the open device while the device is connected to the mains Always unplug the power cable if this is possible Various components of the switching power supply are at mains voltage and must therefore only be touched by an instrument not connected to the power supply For measurements with the oscilloscope or other measuring instruments the measuring point MP 8 is provided as ground reference CAUTION The circuit of the APC 300 contains electrostatically sensitive components When repairing the
38. er 5 5 mm outlet driver for M3 nuts Unplug power cable from the outlets from the device as well as from the power supply end Open the APC To do this the two pan head screws on each side of the device and the four pan head screws in the rear section of the device cover must be removed Dismantle outlets Take time to look closely at the wiring and the construction before dismantling Unplug the two plugs leading to the footswitch outlets from the main board Upper outlet male to J 10 main board lower outlet female to J 9 main board Remove the two upper and lower M3 nuts and their toothed lock washers using the 5 5 mm outlet driver Now you can remove the mounting base with the two footswitch outlets Make a note of the following connection configuration upper outlet pin 1 black pin 2 blue pin 3 yellow lower outlet pin 1 black pin 2 blue pin 3 yellow protective ground conductor yellow green Remove the leads to the corresponding outlets using the 2 5 mm screwdriver After removing the two M3 nuts with the toothed lock washers from the corresponding footswitch outlet this can be pulled out towards the front through the retaining plate Insert the new footswitch outlet in the same way Fasten with the toothed lock washers and M3 nuts Reassembly 82 The further reassembly steps are in the converse order as in the dismantling instructions above After completion of the task check the APC 300
39. est Switching of the valves and relays can be tested with this program With the up down keys the following states can be set all relays and valves switched off all valves switched on valve 1 switched on valve 2 switched on valve 3 switched on valve 4 switched on valve 5 switched on valve 6 switched on valve 7 switched on valve 8 switched on all relays and valves switched on relay 1 switched on relay 2 switched on relay 3 switched on relay 4 switched on 69 70 This enables deductions to be made as to whether a certain valve or relay is still functioning or defective or whether the main board control is functioning or defective Note The valve numbers correspond to the possible switch combinations and are not identical to the valve numbers in the representation of the valve block Instrument rinse parameters branches to the menu Instrument rinse parameters allows the rinse flow L min and rinse duration sec to be set separately for each instrument 0 to 10 The settings are stored 10 Finding errors when there is a leak in the argon gas unit NOTES ON SAFETY WARNING A 10 rules for working with gas cylinders There are many regulations and rules concerning work with gas cylinders some of the most important are listed below Only experienced trained persons may work with gases GASES may only be taken from the CYLINDERS using the connected pressure reducing valves GAS CYLINDERS must
40. etween 1 and 99 yes no Is error number between 100 and 199 yes no Is error number between 200 and 299 yes no Is error number between 400 and yes 449 no Is error number between 450 and 511 yes Replace MCU because error numbers gt 511 are not possible Go to Output error and deviations Go to Operating error Go to Selfcheck error Hardware error Accessories Go to Sum check error Go to System error Output error Deviations Irregularities Check accessories clea them connecting hoses ag well as gas cylinders and valves If no error can be found call in techn service Possible causes Bent or blocked hoses failure of valves V1 V2 V3 and V6 pressure sensors p3 p4 and p5 main board electronics Underdose no flow Is error number 10 yes no Overdose 1 slight Is error number 11 yes Possible causes Pressure reducer on cylinder proportional valve and controller Check pressure reducer differentia pressure sensors and valves p3 p4 If no error can be found nozzle valve V4 here call in techn servic main board electronics no Overdose 2 unacceptable Is error number 12 yes no Possible causes Gas cylinder empty or not connected hose disconnected or come loose fro
41. footswitch control unit which fulfills all the conditions mentioned is needed This footswitch control unit is represented on sheet 2 The footswitch is connected to plug J 9 It is connected to the electrosurgical equipment via plug J 10 Here the 12 V supply voltage is present at contact 1 contact 2 enables the coagulation channel to be actuated Contact 3 actuates the cut channel The contact allocation of plug J 9 is shown in the circuit diagram the letter A represents the cut channel and B the coagulation channel The relay contacts REL 1 to REL 4 show the switching condition when the APC 300 is switched off From this it is possible to recognize that the 12 V supply voltage of the electrosurgical equipment is looped through to the footswitch as the switched output lead of the footswitch is looped back to the high frequency surgical equipment This means that the electrosurgical equipment can be actuated directly via the footswitch when the APC 300 is off Therefore it is not necessary to unplug the footswitch from the APC 300 and plug it into the electrosurgical equipment or even to switch on the APC 300 to operate the electrosurgical equipment on its own However if the APC 300 is switched on the contacts of relays REL 1 and REL 2 are switched over The footswitch 29 now obtains its 12 V supply voltage via plug J 9 contact 1 directly from the APC 300 supply The switching signals of the footswitch now no longer go directly throu
42. g the menu item marked Its current function is always shown on the bottom at the right of the display Start of the menu use Program selection menu gt Leave menu Configure application programs Argon gas info VX XX 4 Call menu item I Display error list Display brightness System diagnosis programs Instrument rinse parameters gt Leave menu End of the menu 19 Purce button Using the purge key the rinse program is called Before an instrument is actuated for the first time it must be rinsed with argon Instrument outlets Argon outlet Argon output Insert the instrument s argon gas connection into this outlet Multiple outlet Input of finger switch signals instrument recognition output of high frequency current Insert the instrument s multiple plug into this outlet Meaning of the symbol eh The unit has been built in compliance with Type CF cardiac floating and it has a patient leakage current of less than 10 uA The APC 300 is protected against defibrillator voltages HF inputs The high frequency current of the electrosurgical unit is conducted to the APC 300 via this outlet Insert the high frequency lead into the outlet Connect it to the CUT COAG outlet of an ERBE electrosurgical unit The ICC 300 and 350 possess two CUT COAG outlets Please refer to the CHAPTER 8 entitled Actuation concepts in APC 300 Handbook gt to discover which outlet is used for which concept Ma
43. gh to plug J 10 but are switched to connections FB and FA of the APC 300 where they reach the MCU for processing The actuation signals from the actuation monitor also come to the MCU If the MCU now recognizes that an actuation has occurred via footswitch or finger switch the MCU will see that when the cut channel is actuated relay REL 4 is switched to and when the coagulation channel is actuated relay REL 3 is switched to As a result the electrosurgical equipment now receives the appropriate control voltages via its own voltage supply isolated from the APC 300 The APC 300 is able to regulate a prescribed flow volume precisely To do this it is necessary to record the actual flow via sensors to compare it with the required value and to control a directly controlled system in which a proportional valve will set the flow in such a manner that the deviation from the required value is as small as possible The proportional valve is realized in the APC 300 as follows The MCU generates a pulse width modulated signal whose pulse width depends on the required lift of the piston in the valve This signal is present at measurement point MP 6 Next it is filtered in the low pass R 48 C 39 which sets up a mean value at the input of the operation amplifier IC 20 IC 20 is switched as a voltage follower and decouples the voltage before it comes to the input of the OP amplifier 2nd part of the IC 20 which together with the Darlington powe
44. he error and can thus reduce the time the device is not functioning The troubleshooting process is not intended for the experienced service technician who is looking for help in especially difficult cases The troubleshooting process is based on the diagnosis routines of the APC 300 which issue an error number and the error discovered in plain language on the display The test depth of the diagnosis routine is so great that the cause of the error can often be identified unambiguously with the error message The troubleshooting process takes these error messages as its starting point The size error trees usually have can thus be reduced considerably According to our studies a considerable proportion of causes of errors lies not in the device itself but in the environment For this reason the user and the hospital technician can often find the cause of the error themselves by means of the troubleshooting process and correct it without having to open up the device On the other hand a technical service of the APC 300 often requires considerable measurements to be conducted with appropriately expensive and rarely available measurement tools This work is not restricted to replacing defective components or assemblies but requires detailed knowledge and expertise in the function and adjustment of the device Therefore we assume that the user and hospital technician will be in a position to perform minor repairs themselves These include for ex
45. he unit must not be set up in narrow niches or shelves CAUTION The APC 300 is protected against penetration by liquids according to EN 60 601 2 2 The case is not absolutely water tight For this reason do not set up the unit in the direct vicinity of tubes or vessels containing liquids Electrostatically sensitive components CAUTION This device contains electrostatically sensitive components Work at an anti static workplace while repairing the device Wear a grounding armband while working with electrostatically sensitive components Hold the circuit boards by their non conducting corners Use an anti static container for transporting electrostatically sensitive components and the circuit boards 10 2 General Description of Clinical use APC equipment combines argon gas with a monopolar power source The electrode in the argon channel of the applicator is connected to an electrosurgical generator The APC applicator ionizes the argon gas where it remains ionized approximately 2 10 mm distal to the tip of the applicator lonized Argon gas is electrically conductive This allows the current to flow between the applicator and the tissue Current density upon arrival at the tissue surface causes coagulation The application of the energy to the tissue is uniform and contact free The Argon plasma beam acts not only in a straight line axially along the axis of the applicator but also laterally radially and around the corner as it seek
46. in the displays are shown in bar or mbar 1 bar 14 5 psi 1 Safety notes for servicing WARNING AN The safety instruction WARNING denotes a danger which can cause injury to persons CAUTION d The safety instruction CAUTION denotes a danger which can cause damage to property ATTENTION The safety instruction ATTENTION denotes a danger which can cause failure of the device Safety precautions against the threat of electric shocks WARNING Only connect the APC 300 using the power cord supplied by ERBE or one of at least the same quality to a properly installed grounded outlet If you use an equipment cart this also applies to the power cord of the cart The power cord must bear the national mark of conformity For safety reasons multiple outlets and extension cords should not be used If their use is unavoidable they too must be provided with proper grounding WARNING Unplug the power cord from the outlet before exchanging parts of the device or cleaning it WARNING Do not plug in a mains cable which is wet into the device or into a outlet WARNING Do not touch any unprotected wires or conductive surfaces while the device is disassembled and is under voltage Never carry a grounding belt while working with a device under voltage WARNING The unit is protected by mains fuses If one of these fuses blows the unit must not be used on patients until it has been checked by a properly trained technician Only re
47. ins switch Before the unit is switched on the APC 300 should be installed and configured as described in CHAPTERS 4 and 8 gt in APC 300 Handbook Switch on the APC 300 about 5 minutes before starting an application The unit requires this amount of time to reach its thermal equilibrium and to conduct self checks and functional tests Self checks After being switched on the unit conducts a self check in which the pressure sensors are tested If an error is identified the message Selfcheck Error appears on the standard display The unit of flow L min is not shown Despite this error the COAG flow and CUT flow can still be set and the unit utilized If a self check error occurs the APC 300 should only be used in an emergency when no reserve unit is available as an argon overdose could occur This is however less of a threat than the non availability of the APC 300 in an emergency Functional test The unit conducts a functional test in which the keys on the front panel the foot and the finger switches are checked In addition the APC 300 identifies whether a supply of argon gas is available The supply level in the gas cylinders may also be identified Errors are displayed in plain language and signalled by an audible signal Meaning of the symbol N Only use the APC 300 if you are familiar with its operation and properties 20 Operating elements on the rear panel Argon cylinder connections Only argon gas cylinders or a cent
48. instrument connection Plug line for activation recognition into input 5 of the instrument connection Connect measurement line and line for activation recognition to the test box R 0 120 Q Switch on APC pressing both UP and DOWN keys Enter code for calling system setup Call activation recognition With the UP key set R 0 Q APC display activation recognition Ohm 0 Set resistance series R 0 Q APC display Activ No 0 Store with program key wa Rap ID Repeat steps 4 to 6 with adjustment R 10 120 Q APC display activation recognition Ohm 10 120 APC display Activ No 1 10 10 Adjustment check set test box R 0 120 Q APC display Activ No 0 10 47 Adjustment of argon flow Front panel Plug for gas connection O Connection hose about 1m long flow meter 11 range 0 1000 ml scale 0 1 48 100 230 V 50 60 Hz Back panel Power supply i Loos Argon gas cylinder with pressure regulator Input pressure at cylinder connection 1 with pressure regulator set at a constant P 2 5 bars 36 25 psi tolerance 0 5 bar 7 25 psi for 1 I flow Instructions 1 nA A WO N VD ON A Set up the APC accessories and flow meter as shown First connect APC applicator with the test hose to flow meter 1 I Switch on APC pressing both the UP and DOWN keys Enter code for calling system setup Call adjustment of argon fl
49. ke note of all circumstances which could cause a malfunction such as loose cables or cables which have come off unusual noises unusual displays and take note of parts which have broken off burned or changed colour Then look at the plugged connections to see whether the plugs are plugged into the outlet far enough and the leads directly at the entrance point of the plug are OK e Ir only one specific function has failed concentrate on those parts of the APC 300 which influence or control this function In case of a malfunction with functional display or with no error message on the display the error may be located in defective accessories For example there may be a defect in the footswitch in the instrument or a broken connection In this case the cause of the error can be confimed by exchanging the accessory used e Ifseveral functions fail at the same time concentrate on the part of the APC 300 which controls precisely this set of functions The subsequent troubleshooting assumes that the APC 300 was working perfectly in the manufacturer s factory at the end of the final test and in the meantime a new source of failure has arisen which must be located The troubleshooting process is designed in such a manner that it helps the user and the hospital technician to locate errors which have arisen and to correct them themselves if possible It can often give the authorized customer service technician useful hints for locating the cause of t
50. losion hazard if used in the presence of flammable anesthetics Consult qualified medical personnel Note Caution Patient connection electrically isolated Electric shock hazard Note DON Ref ici lifi L O NOT remove cover Refer seimelngtegbalfiee personne Grounding reliability can only be achieved when the equipment is Caution connected to an equivalent receptacle marked Hospital Only or Sparking at the active electrode is a common occurrence Hospital Grade DO NOT perform procedures if flammable or explosive media are present i e anesthetics bio intestinal gases etc Caution Risk of burns and fire Replace electrode cables upon evidence of deterioration Rear panel Argon cylinder connections Drainage pin Output for actuation signals Mains connection 7 N e A e Argon e max 4 5 bar max 31 psi A ERBE ELEKTROMEDIZIN T BINGEN oe 1 a L Dees T Sa Esch Deen Fe EH a EH S CC Cc O4 Drainage opening Foot switch socket Potential equalization Loudspeaker Program structure APC 300 Main level Selfcheck Rinse program Standard Display application programs 0 12 Program selection menu Configure application programs Flow rate settings Preferred cylinder number Volume setting Argon gas info General cylinder info
51. n Plasma Coagulator APC 300 is an argon coagulator controlled and regulated by microcomputer The mains voltage in the range of 90V to 230V nominal arrives via a power line filter to limit EMC problems and the mains fuses at a switching power supply which adjusts the highest permissible power voltage range and produces and stabilizes the required operational voltages 12 V 5 V and 12 V The argon emerges from the supply cylinders via a separate pressure reducer to a pneumatic unit in which several electrically controlled valves are located for controlling and regulating the flow of the argon In addition a0 8 u filter is integrated to remove particles in the gas flow The valves of the pneumatic unit are set by the microcomputer unit MCU 68332 both through the proportional valve driver and the valve controller and valve driver From the pneumatic unit hose connections lead to four pressure sensors by means of which the gas flow is regulated and the proper function of the gas unit can be tested The analog output signal of the pressure sensors is fed through an analog digital converter to the microcomputer unit for evaluation A fluorescent display tube display a keyboard and a loudspeaker serve as interfaces for communication between the user and the APC 300 The display receives its data from the microcomputer unit Inputs to the keyboard are fed to the microcomputer unit and the audible signals are generated in the microcomputer uni
52. n TPU Time Processing Unit The MCU contains 2 KBytes internal RAM As this is not sufficient to control all functions it is supplemented by two external RAM components KM 68 1000 with 128 KBytes each The user program and other data are stored in the flash memories KM 29 C 010 Flash memories are non volatile memories electrically programmable and rapidly electrically erasable which are comparable to EPROMS but have an extremely high storage and function density As flash memories require neither programming nor erasing devices they can remain in the circuit The programming of the components takes place on board i e no external programming is provided for as is the case for EPROMs The program is loaded from a PC via plug J3 Checking of the storage components takes place by means of check sum in a system check The programmable peripheral interface components 82C55 PPS form three further bus systems at their outputs ports 1 to 3 via which the MCU data is transferred to the peripherals The component MAX 691 monitors the supply voltage When switched on the circuit causes a reset of the computer system to a defined starting state and by means of a built in watchdog circuit deals with the monitoring and functionality of the software processing The GAL 16V 8 is an externally programmable logic component which mainly conducts address decoding 34 The 8 bit D flipflops 74HC245 supply the buffered external address and data bu
53. n power supply and measure voltage at the fuse Is the voltage 0 V no no no no Check electrical installation Plug in mains lead Switch on APC Device fuses or mains switch defective Replace Fuse is defective Replace fuse 60 Unplug 6 pin plug from power supply and measure output voltage of power supply U 4 1 12 V U42 5V U 4 6 12 V Power supply is defective Replace power supply Are voltages correct Plug 6 pin plug back into power supply Check voltages on the main board Ground MP 8 C2 5V Is the 5 V voltage correct no Remove plug J 6 Display is Is the 5 V voltage correct We NS Replace no Remove circuit board MCU 68332 programmed circuit board Main board defective Exchange PC board and readjust Is the 5 V voltage correct MCU 68332 defective Exchange PC board and readjust Device reacts but nothing visible on display Can valves be heard to rattle when device is switched on yes no Exchange MCU 68332 board programmed circuit board Possibly loose connection in cable Call in service Is there anything on the display now yes Conduct readjustment Call in techn service Error has been found 62 Display is functioning error number and text are displayed Is error number b
54. nosis programs are available to the user and the hospital technician at any time and can be called up through the menu whereas others on the coded level are only available to the authorized technician being present as hidden menu items since if applied in a manner not intended the hidden programs can damage the adjustment of the APC 300 and thus have a negative effect on the safety of the unit By pressing the enter key for longer than about 3 seconds the operator comes to the program selection menu of the system diagnosis programs The following routines are found there e Configure application programs e ARGON gas info e Display error list e Adjust display brightness e System diagnosis programs e Instrument rinse parameters By selecting the line leave menu with the up down keys and after confirmation with the enter key you are now back in normal operating mode Program selection menu Configure application programs branches to the menu Configure application programs Flow rate settings allows a setting for the CUT flow and the COAG flow for each instrument 0 to 10 In this menu the program number can be changed The settings are stored under the selected program number Preferred cylinder number Selection of the preferred cylinder If the cylinder set is connected gas is taken from the preferred cylinder when gas is actuated 67 Volume settings allows settings for volume for CUT COAG and PURGE for each program t
55. o be made and stored Each tone set must be stored separately ARGON gas Info branches to the menu Gen cylinder info displays contents L and input pressure bar of cylinders 1 and 2 The cylinder data cylinder pressure bar and cylinder contents L for cylinder 1 2 are displayed Change cylinder data The cylinder data cylinder pressure bar and cylinder contents L for cylinder 1 2 can be altered The altered settings are stored Display error list branches to the menu Error display menu Display error list shows the error list with a total for the number of errors which have occurred The list is scrolled with the up down keys Error trace shows the error trace list which lists each individual in the order it occurred The list is scrolled with the up down keys Display brightness allows the brightness of the display to be set The brightness setting is stored System diagnosis programs contains the most important routines for the service technician branches to the System diagnosis selection menu Tone generation test allows the different tones to be tested and actuated without storing them Display test The display is written with all available characters Test keyboard Here the keys on the front panel can be checked The number of the key pressed is issued Test actuation signals The function of the footswitch and finger switch is tested The actuated function is displayed in plain language on the display
56. ow Set adjustment ml 100 with the return key Continue to adjust using the UP and DOWN keys until the flow meter displays 100 ml Store with program key Repeat steps 4 to 6 with adjustment ml 200 1000 Connect APC applicator with the test hose to flow meter 0 1 Fig 6 Repeat steps 4 to 6 with adjustment ml 2000 9000 10 WARNING After adjustment Leave System Setup Check all adjustments between 100 ml and 9000 ml under normal condition flow meter 10 range 2 10 scale 0 51 1 Test functions Select program selection menu system diagnosis programs Conduct tone generator test Test tone 1 CUT Test tone 2 COAG Test tone 3 PURGE Conduct display test Test keyboard Press all keys one after the other Test activation signals Activate CUT footswitch COAG footswitch CUT finger switch and COAG finger switch one after the other Test supply voltage Test supply voltage 12V Valid display range 12500 to 11500 mV Test reference voltage Test reference voltage 10V Valid display range 10000 mV 49 Checking for leaks Manometer 0 10 bar 145 psi Argon gas cylinder with pressure regulator Input pressure at cylinder connection 1 with pressure regulator set at a constant P 4 5 bars 65 25 psi tolerance 0 1 bar 1 45 psi Back panel flow meter 11 range 0 1000 ml scale 0 1 Front panel Stopper In
57. placement fuses of the rating specified on the unit s name plate may be used WARNING High frequency voltages of over 1000 V are needed to ionize argon Check that there is no damage to the electrical insulation of the applicators and all cords prior to use Dangers when handling argon cylinders WARNING Gas cylinders may only be transported with valve protection cylinder cap WARNING Protect the argon cylinder from being warmed by heaters or open fires WARNING Argon cylinders may only be connected to the APC 300 with the pressure reducer and hoses provided by ERBE WARNING No force of any kind should be exerted on cylinders cylinder connections or the pressure reducer Secure the argon cylinder during transport storage and use from tipping over or falling down by means of chains straps safety belts Always use the safety belt on the mobile equipment cart WARNING The input pressure at cylinder connections 1 and 2 of the APC 300 must not exceed 4 5 bar 65 25 psi If the unit is connected to a central argon supply the input pressure must not exceed 2 5 bar 36 25 psi WARNING Damaged cylinders must not be used Mark them Inform the argon supplier immediately Only use argon cylinders conforming to your national safety standards WARNING The APC 300 may only be operated with argon A cylinder containing a dangerous or improper gas could be connected to the cylinder connection of the unit Check each cylinder to ens
58. r transistor T 12 and its negative feedback resistances R 57 and R 58 acts as a voltage controlled current source Via the plugged connection J 12 the current flows from the proportional valve through this current source and thus sets the desired argon gas flow For controlling the gas flow other valves known as two two way valves are required They are only able to switch the gas flow on or off and do not behave proportionately To control them it is sufficient to switch the field current on or off The MCU transfers the control pattern of the valves via Port 3 to the target memory IC 12 an 8 fold D flipflop in which the pattern is stored The control leads VT 1 to VT 8 are each led to the respective bases of eight Darlington power transistors T4 to T11 which are connected via the plugged connections J 13 and J 14 to the control leads of the valves The tone control and generation of the signal tone frequencies takes place in the MCU The MCU produces the tone frequency directly as well as a pulse width modulated signal for controlling the volume the pulse width of the signal corresponding to the volume The signal is available at the connection PWM 3 via the bus driver IC 6 and filtered by means of the RC low pass R 25 C 20 As a voltage follower the subsequent OP amplifier IC 5 decouples the signal inverts it and amplifies it The tone frequency signal is available at the PWM 2 and is mixed via resistors R 28 and R 29 The network R30 C19
59. ral argon supply may be connected to these cylinder connections Cylinders with a capacity of 5 liters or other volumes can be connected The pressure reducer supplied by ERBE must be installed on the argon cylinders The cylinders may only be connected using the pressure hoses supplied by ERBE The input pressure for the gas cylinders is maximally 4 5 bar 65 25 psi If the APC 300 is connected to a central argon supply the maximum input pressure is 2 5 bar 36 25 psi WARNING The APC 300 may only be operated with argon A cylinder containing a dangerous or improper gas could be connected to the cylinder connection of the unit Check each cylinder to ensure that it really does contain argon Identification must not be damaged or missing Argon cylinders may only be connected to the APC 300 with the pressure reducer and hoses provided by ERBE Please read the APC 300 Handbook CHAPTER 5 Changing cylinders gt Please read sections Danger of pressure explosions and Dangers associated with handling of argon in CHAPTER 2 Notes on safety gt Drainage pin There is a residual amount of argon in the pressure hoses of empty argon cylinders In order to empty the hose when changing the cylinder the hose is pressed onto the drainage pin Output for actuation signals The actuation signals foot or finger switch of the instrument are conducted to the electrosurgical unit via this outlet Insert the connection lead 20189 022 or 20132 063 into this
60. ram 2440us4n nennen 54 10 11 12 Finding EC 55 Finding errors in the APC 300 nn te sduends Biadepidenecueeants 55 APC 300 appears to have broken down 57 PHO PEC ION trom EEN 58 Device reacts but nothing visible on display cccceeeeeeeeeeeeteeeeeeeees 59 Error number and text are displayed cccssssecceeeeeeeeeeeeeneneeeeeeeees 60 Output error deviations irregularities ANEN 61 Operating error during switch on phase Abu 62 Self check error hardware error ACCESSOLY ermor 63 Check sum error system error an 64 Service support through test programs sssseeseeeteeerernnnneeerrrnnnennneeeee 65 Finding errors when there is a leak in the argon gas unit 69 PS OM SAET near 69 Gas leak EE 70 Gas leak in inlet section of the APC 300 nannte 71 Gas leak in outlet section of the APC 200 72 Gas leak in the high pressure component of the system ssssseeesene 73 Exchange of components and assemblies nuuunnnnnnannnennnnnnnnnnnnn 75 Line USES ree E T A 76 Device outlet with power line flter AAA 71 See EE 78 Power control board is 79 Footswitch Outlet nn 80 Loudspeakers aa Eege 81 Gas connections of the rear panel ae ana rreren 82 Gas connections of the front panel ssssessssesessnrsssrrrrserrrnsrrrnrrrrrnnerenne 83 Changing argon cylinder u 84 List of components and assemblies mentioned in Chapter 11 85 Please notice All values
61. s at locating errors or conducting repairs are made outside the manufacturer s factory In the case of an error which can be traced to the display this board is usually replaced with a new one 41 The switching power supply 40132 101 The switching power supply serves to supply voltage to the APC 300 It produces regulated output voltages of 12V 5V and 12V with a power end input voltage range of 90 V to 240 and a frequency of 50 Hz to 60 Hz The switching power supply is an industrial standard model Therefore the function of the circuit will not be described here Attention When the APC 300 is opened special care must be taken as parts of the switching power supply are at mains potential 42 The APC keyboard 30132 067 The APC keyboard is for communication between the user and the APC 300 By means of the keyboard all required data inputs for operating the argon plasma coagulator are entered On the printed circuit board there are 5 key buttons K1 to K5 for entering data 5 capacitors C1 to C5 as blocking capacitors and plugged connection J1 for transferring the signals to the MCU 68332 43 vv TA b i Te M eu m eT pie fee ae T3 D i I 8 enD 2 18 Gp T4 IE ei D 13 u L u LL u kel au am D st D Ui a Q uo u o ao au o wu wu wu wu wu wu GND GND GND GND GND Diese Zeichnung ist urheber rechtlich gesch tzt daher Weitergabe und Vervielf ltigung ohne unsere Genehmigung unzul ssig
62. s conductive bleeding surfaces Following physical principles the plasma beam has a tendency to turn away from already coagulated high impedance areas toward bleeding or still inadequately coagulated low impedance tissue in the areas receiving treatment This automatically results in evenly applied uniform surface coagulation 11 12 3 Installation First time operation The APC 300 has been checked for proper and safe operation prior to shipment In order to guarantee that the unit functions safely after transport and installation by the operator it may only be put in operation after 1 Ithas been subjected to a functional check in conjunction with the electrosurgical unit at the location of operation and 2 those responsible for operating this combination of equipment have been instructed by the manufacturer or supplier on the proper use of this combination of equipment with reference to the operating instructions Mains fuses The unit is protected by mains fuses If one of these fuses blows the unit must not be used on patients until it has been checked by an experienced technician Only use replacement fuses of the rating specified on the unit s name plate Installation on the equipment cart APC 300 The APC 300 is normally installed on an ERBE equipment cart Type 20185 008 International version 20185 009 UL version It also carries the argon gas cylinder s and the high frequency surgical unit required for operation
63. s section describes the exchange of certain components and assemblies of the APC 300 Only the exchange of those parts which can be changed without any special tools or special testing implements will be described After components have been exchanged the APC 300 must always be checked to see whether it is functioning properly In addition the low frequency leakage current and the protective ground conductor resistance must be measured before the APC 300 can again be released for clinical use WARNING IN Take care when touching parts in the interior of the open device while the device is connected to mains voltage Always unplug the mains cable if possible Certain components of the switching power supply are at mains voltage and for this reason they may only be touched by a device separated from mains voltage If possible use an isolating transformer For measurements with the oscilloscope or other measuring instruments the measuring point MP 8 is provided as ground reference ATTENTION The circuitry of the APC 300 contains electrostatically sensitive components Work at an anti static workplace while repairing the device and conducting measurements and also wear a grounding armband while working with electrostatically sensitive components Hold the circuit boards by their non conducting surfaces and use an anti static container for transporting electrostatically sensitive components and the circuit boards Recommended tools 2 5 mm scre
64. ses For operating the APC 300 with the MCU 68332 an extensive safety concept has been drawn up which ensures that hardware errors software errors external interference access problems and many other things are recognized the errors processed stored and the overall system put in a secure state 35 9 ABUS AHIGH AHIGH AHIGH DHIGH RIL c15 HA hI GE A19 CS6 D I Ei 3 l 57 e 122 A20 C57 A1 S a a Teg 123 p21 TSB ne Wg 124 n22 759 ER reg 125 023 510 A4 AS T2CLK 28 T2CLK AG A me zeg AB er le Si mae 14 TPp2 A10 upp S Trae 13 TP3 A11 FLIE _ CRITE TP4 TP4 A12 24 OE E TPS TPS A13 ee F CE WE RCE TP amp 18 TPE A14 iii TP 3 TP A15 5U TP8 6 JTP8 A16 TP9 TP9 A17 ee a Jang a18 KM29C818 KM29C018 kmeg aee e TP11 TP11 TP12 132 TP12 Da TP13 31 TP13 D1 TP14 seht D2 TP15 129 TP15 D3 TORGI e Uer Ic8 TROT Troe 6_ TORGe D6 5U G3 TROD 75 TOROS D 3EN1 BA TROA 24 TORGA D8 3EN2 AB TO 23_ TOROS D9 ees rose k 72 TOROG D18 mz 21 TORQ7 D11 zs 17 res pie wa ETSA Berk 2 BERR D13 Ces 15 _secss mat 621 ALT D14 TE Mid ETSE RESET e Cep 2 Erem a READ EREAD RxD ne VE RTTE e Hai 11 _EIRTTE To 2824 TXD SCH 7AHC2AS SCK 42_1SCK 1c3 MISO 43 MISO DECKER MOSI 44 I MOSI DSACKT TST res 46_ PC59755 s za 3EN1 BA PEST 4 PCSI SIZ1 ABUS 3EN2 AB EABUS PCS 48 PCSE RMC FLUE Pre
65. structions Set up the APC with the connecting hose for testing for leaks Set input pressure at the pressure regulator to 4 5 bar tolerance 0 1 bar Read off pressure on the manometer Screw stopper onto the argon outlet of the APC 300 Set program 0 COAG Flow 2 0 1 min Instrument 0 Active APC COAG footswitch for about 15 sec The system is filled with argon After about 15 sec no flow should be measurable on the flow meter Set COAG Flow to 0 5 1 min o N A an A LU N m Repeat step 5 50 Testing footswitch signals to the electrosurgical equipment Connect APC 300 with the footswitch cable to the electrosurgical equipment Test activation of the CUT function and the COAG function Gas function test No Teen wooo p p oe eo p p om eo p p o When the gas function is activated no output error must occur 51 Continuous test Continuous test Operate the APC 300 with a gas supply nitrogen or argon with an input pressure of 3 bar 13 5 psi and without a connection cable at 1 2 times the power supply voltage and an ambient temperature of 40 C over a period of 2 hours ED 25 See final test log Memory page values initialization Initializing the error page After this menu item has been selected the contents the elements of memory pages 1 to 40 can be inspected On page 1 for instance there are elements 0 to 15 When working in conjunction with the ERBE FUE it is possible that
66. t The gas can then flow to the instrument connected Valve V5 controls a test output for self check purposes via which gas can be released in a controlled manner in order to test the function of the pneumatic block by means of a defined leakage This test is conducted by the microcomputer unit MCU 68332 When the power supply is switched on and a new gas cylinder is connected the self check function is initiated The self check proceeds in individual test steps The test steps can be conducted individually in the System safety test functions menu If an error is found during the self check the message self check error is issued on the fluorescent display tube Within the self check the following are checked e whether both input pressure sensors are functioning e whether measurement of the output pressure is functioning e whether the flow sensor and the proportional valve are functioning e whether the expansion of the measurement range by means of the bypass is functioning e whether all valves are functioning e whether the two gas cylinders are full 39 elfcheck Ausgangs druck Pi SCX30 DN 5 u n sr e e gt Nm a aa E 0 Ai wn Se D vu H gt we 2 wm L Oo SCXI00C AN Eingangs Eingangs druck Pi SCX100C AN druck P2 Eingangsdruck 2 5 4 5 Bar Durchflu Al 0 1 8 l min Rohmafe Werkstoff Nr Fohmabe zangabe berfl
67. t processed in the tone controller and amplified before being sent out through the loudspeaker The APC 300 can be actuated both via footswitches and via finger switches The footswitch control unit conducts the signals to the controller of the APC 300 and to the electrosurgical equipment Several different types of instruments requiring different performance parameters can be connected to the APC 300 as desired The APC 300 can be actuated via the instrument connected At the same time it is automatically recognized which instrument is connected and which working parameters are stored for this instrument The in strument and actuation identification facility which conveys its signals to the microcomputer unit is present for this purpose 25 mains power line switching 12 V filter power 5V pwm2Pwm3 tone control i dopeak 90 230 V supply and amplifier oudspeaker 47 63 Hz 12 V 4 pressure sensors for P A D cylinder 1 converter keyboard a S A E MCU selection proportional 68332 T2 T3 Argon valve control display 2 pressure proportional 4 reducer 2 valve en s instrument cylinder 2 valve IESZWIEN identification cotrol control f and actuation valve driver ON OFF filter sis ON OFF 0 8 pmf mn 38 J9 J10 J11 HF in gas output at gt gas main the unit electr main footswitch DEER filter In Fout HF out 0 2um option gas output after filter Circuit diagram
68. tective grounding To avoid high frequency disturbance and to protect the patient connect the potential equalization pins of the electrosurgical unit and the APC 300 to the equipment cart via potential equalization conductors Connect the potential equalization of the equipment cart to the potential equalization of the operating theatre NOTE Se The CE 0124 sign is not at the i e UL version ee dii ei E 1 power cord from APC 300 to equipment cart 2 power cord from ICC to equipment cart 3 power cord of the equipment cart 4 Potential equalization equipment cart operating theatre 5 Potential equalization equipment cart ICC 5 Potential equalization equipment cart APC 300 14 Environmental conditions The APC 300 can be operated at aroom temperature of between 10 and 40 C The effective humidity can be between 30 and 75 non condensing If these tolerances are exceeded in either way the unit may break down The APC 300 must be set up in a way that permits air to freely circulate around the case The unit must not be set up in narrow niches or shelves The APC 300 is protected against penetration by liquids according to EN 60 601 2 2 The case is not absolutely watertight For this reason do not set up the unit in the direct vicinity of tubes or vessels containing liquids Do not place any liquids on the APC 300 15 16 4 Gas supply Central gas supply The maximum permissible input
69. unit or conducting measurements on it please only work at an electrostatically secured workplace and additionally use a grounding armband when working with electrostatically sensitive components Touch the components at their non conductive surfaces and use antistatic containers for transporting electrostatically sensitive components and printed circuit boards When functions fail or other problems arise in conjunction with the APC 300 the following general points apply e Ifan error message appears on the display and possibly remains there briefly switch the APC 300 off and then on again after waiting a few seconds The unit then conducts a self check to check the APC 300 for errors If this error message no longer appears after that nor during further work this was only a brief one off malfunction and work with the APC 300 can continue The error remains in the error memory however so that the authorized service personnel can react to it at the next routine check If the error message reappears however the cause must be located e In the case of a total failure of the APC 300 always first check whether the mains voltage is ok and whether the outlet and mains cable are functioning properlywith another device e The line fuses at the rear of the APC 300 should also be checked and if necessary replaced by new fuses e First submit the APC 300 to a visual inspection in which you look for damage and alterations 57 e Also ta
70. ure that it really does contain argon Identification must not be damaged or missing WARNING Argon is heavier than air If it builds up in the air being breathed it can displace the oxygen so that there is a danger of suffocation Symptoms of oxygen deficiency are drowsiness rising blood pressure and breathing difficulties In an atmosphere of pure argon sudden and unexpected loss of consciousness and suffocation occur A short hissing noise will be heard when the gas valves are opened due to the argon flowing into the hoses If this hissing continues for longer than 2 seconds when a cylinder is opened there is aleak and the argon cylinder must be closed again immediately The unit may not be used until the leak has been repaired Make sure that the hoses are tightly connected to the APC 300 The same applies to the pressure reducer connection to the argon cylinder Close the safety valve of the argon cylinders after use Environment ATTENTION The APC 300 can be operated at a room temperature of between 10 and 40 C The effective humidity can be between 30 and 75 non condensing If these tolerances are exceeded in either direction the unit may break down ATTENTION If the APC 300 has been stored or transported at temperatures below 10 C especially below 0 C the unit requires about 3 hours to acclimatize at room temperature ATTENTION The APC 300 must be set up in a way that permits air to freely circulate around the case T
71. vice Main board or MCU Full MCU Replace MCU readjustment defective required 64 Self check error Hardware error Accessory error Is error number between 200 and 219 yes no Is error number between 220 and 229 yes no Is error number between 230 and 240 yes no Is error number between 250 and 299 yes Condition doeg not hold When circuit boards are replaced Error in Error on computer MCU board Call technical service system Replace MCU readjustment ig required Possible errors valve block main board sensors hoses Self check error in sensors main board readjustment required Error 230 Error 230 12 V def gt power replace e supply Seem Error 231 er nn ref voltage replace ee e die i main board q Error 250 remove tissue from instrument Error 251 clean hoses and instruments Correct fault blockage according to Error 262 instructions change cylinder displayed Error 263 264 change appropriate cylinder Error 265 use up one cylinder completely then change cylinders Error in See error argon gas message supply text 65 Sum check error and System error Error in Is error number GE storage of Error on Conduct between yes error rogram or MCU board readjustment 400 and 449 prog Replace
72. wdriver 4 mm screwdriver 8 mm screwdriver Indented cross screwdriver no 1 5 0 mm outlet driver 5 5 mm outlet driver for M3 nuts 6 0 mm outlet driver 8 mm fork wrench 12 mm fork wrench 14 mm fork wrench Electric continuity tester Multimeter 77 Testing and renewing line fuses This section describes the testing and replacing of the line fuse or fuses at the rear and gives instructions about defective fuses Required tools 4 mm screwdriver Electric continuity tester Unplug power cable from the outlets from the device as well as from the power supply end The line fuses are located in the lower section of the device outlet Depending on the regulations of the country of destination there are one or two fuses Using the blade of the screwdriver grip the opening of the fuse drawer below the protective ground conductor contact and force it outwards Now the drawer can be removed along with the fuses Check the state of each fuse and test it for continuity with the continuity tester Fuses which have no electrical continuity must be replaced with new fuses Make sure in doing so that the nominal value of the fuses agrees with the specifications on the nameplate of the APC 300 voltage nominal current and characteristic Fuses with other faults e g loose contact caps broken glass must also be exchanged Replace fuses in the drawer and insert the drawer in the correct place with the strap facing upwards Note
73. y integrated and applied to both sides of the printed circuit board as surface mounted devices SMD As it is exceedingly difficult to locate errors and to repair this circuit board it is recommended that no attempts at locating errors or conducting repairs are made outside the manufacturer s factory In the case of an following information the circuit will only be described in terms of function blocks The exact function and tasks of each component will not be described in detail The following functional components are located on the printed circuit board e the microcontroller MC 68332 in 32 bit technology e the flash memory components KM 29 C 010 e the RAM components KM 68 1000 e the programmable interface component 82 C 55 e the GAL 16V 8 e the 8 Bit D flipflops 74 HC 245 e the 4 16 demultiplexer 74 HC 154 e the MAX 691 as voltage monitor and watchdog e the quartz crystal for the basic clock of 32 768 kHz The microcontroller MC 68332 contains a full microcomputer circuit in 32 bit technology which works with an external clock of 32 768 kHz but internally this clock is increased to 16 MHz by means of a built in PLL circuit Since all instructions are processed very rapidly it is possible to let the microcontroller conduct even fast regulatory processes The MCU can read in in data serially via the QSM Queued Serial Module and then re emit the control signals as pulse width modulated signals This is made possible by the built i

APC 300 - MedWrench

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