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1. Relay board T2A 250V x1 Safety standards IEC 1010 1 1990 IEC 601 1 1977 BS5724 Part 1 1979 ESCHLE Second Edition 1986 IEC 601 1 2 1993 Sterilizing Data Sterilizing time At 134 137 C 3 mins 20 sec At 121 124 C 15 mins Typical overall cycle 134 C 13 minutes time D indicates 134 C 30 minutes D drying included 121 C 24 minutes 121 C 41 minutes D Note Overall cycle times may vary depending on machine and loading conditions Nominal Operating pressures 134 C cycle 3 14 bar abs 121 C cycle 2 11 bar abs Water reservoir capacity 2 0 litres Page 4 of 43 Dimensions Autoclave Chamber Trays Tray Loading SESCHMAN Width 460mm Length 461mm Height 360mm Diameter 200mm Length 348mm max Capacity 10 6 litres Width 183mm Length 282 6mm Height Izmm 1 5 kg per tray Weight approx Net Shipping Symbols A N 27 5kg 32 0kg For use with alternating current Caution Hot Surface Caution refer to accompanying documents Sterilising cycle without drying phase NB temperature cycle temperature Sterilising cycle with drying phase NB temperature cycle temperature ST SM8l ESCHMANN SES 2000 AUTOCLAVE TECHNICAL DATA Long Version Electrical Data Dimensions Supply 230Vac at 50 60Hz Autoclave Width 460mm Length 650mm Nominal Loading 230V 2 75kW 12A Height 360mm Feet spaced to fit 600mm worktop Fuses Chassis
2. ST SM8l SES 2000 AUTOCLAVE Part 4 ESCHMANN PART 4 ILLUSTRATED PARTS LIST IMPORTANT NOTE From SN prefix SCC std and LSCC long the pipes and below iagram D ic hanged from copper to reinforced silicone have been changed to those shown in the Schemati ings fi i e pipes c Asse 109 JIOAIOSOH 2LGLO6Y Asse edid Juan AI0OA19SOH 881 067 s 1nu pue s an lo pa nba eui ui e1ejduuoo 9Wwoo saljquiasse edid 1eddoo esau 2 Bumes uo 294Z ON JOO Buisn suonoeuuoo edid euooyis e 01 77 969 en ajqeo e Ajddy Asse edid 1934 0 G 9G L LOS Inu 9 Asse anlen lll SB LOGY o 02 edid I JereM 220 27 921067 ASSV HALA UIaNVHI n 2406 ASSV 3AWATIJ D o o SZ LO6b g ASSY 3ATV 8 39HVvHOSIQ 6SvS LL esou ure1q HOUS 10 IMYA ejeu edid episui Jariau G8ZS LL JOPLISCH 3unssaud zv8Loge PWWOJIH WW GZ ZEESLL edid abseyosiq HOSN3QNOO amp Duo 10J zovst L Q uous 10 gsvst t edid juan aiv 0842 LL Sumy jerims 8 ZSPSL Moqje sepnioul 6SLO6y ASSY 39nv9 AYNSSAYd 6001 404 LEYS LL HOUS 10J 99PS LL Asse gqnL HIOAH3S3H S 0Z2cv ASSV MOOT HOOdQ aufisSaud Q pereoipur e1euw 6gZr2r BUM PAMS e 14 Page 31 of 43 ST SM8l Part 4 SES 2000 AUTOCLAVE ESCHMANY PART 4 ILLUSTRATED PARTS LIST 1 PIPES AND VALVES 6 6A Fig 9 Pipes and Valves Va For uni
3. U Process Display Window Fig 2 item 1 The digital display indicates the temperature inside the chamber and also provides simple messages for the user which indicate the stages through the cycle and also error conditions should any occur Q Four Programme Selector Buttons Fig 4 item 15 These are used to select and start a particular cycle Theycan also be used to place the machine in the Demonstration or Engineering mode as described later U Green Light Emitting Diodes LED s Fig 4 item 16 There are four LED s and these are used primarily to indicate the point at which the required sterilizing cycle can be selected and started and when this has been done to indicate which particular cycle is in progress Q Power On Off Switch Fig 4 item 17 This switch controls mains power supply to the unit U Overheat Warning Lamp Fig 4 item 18 The illumination of this warning lamp indicates that the protective thermal fuse Fig 4 item 7 has operated U DoorLatching Handle Fig 2 item 4 This handle operates the door mechanism to secure the door in the locked position againstthe chamber mouth ST SM8l U DoorSecondary Latch Fig 2 item 6 This engages a safety catch to ensure the door does not fly open should there be residual pressure in the chamber when the door latching handle is operated It is also used to keep the door slightly open during the drying part of the cycle Q Door Interlock Microsw
4. 15A 250V x2 Part No 301871 Chamber Diameter 200mm 400mA Part No 696181 Length 500mm max Capacity 15 6 litres Relay board T2A 250V x1 Trays Width 180mm Length 457mm Height 24mm Safety standards l IEC1010 1 1990 Tray Loading 3 0 kg per tray IEC 601 1 2 1993 Weight approx ma Net 35 5kg Sterilizing Data Shipping 40kg Sterilizing time At 134 137 C 3 mins 20 sec At 121 124 C 15 mins symbols For use with alternating current Typical overall cycle 134 C 13 minutes time D indicates 134 C 30 minutes D Caution Hot Surface drying included 121 C 24 minutes 121 C 41 minutes D Note Overall cycle times may vary depending Caution refer to accompanying gt S on machine and loading conditions documents Nominal Operating pressures Sterilising cycle without drying phase 134 C cycle 3 14 bar abs 134 NB temperature cycle temperature 121 le 2 11 eee gare Sterilising cycle with drying phase Water reservoir WE 134 NB temperature cycle temperature capacity 2 0 litres ST SM8l Page 5 of 43 Part 1 SES 2000 AUTOCLAVE ESCHMANN PART 1 INTRODUCTION GENERAL Fig 1 1 1 This Manual contains descriptive maintenance and spare parts information for the SES 2000 Autoclave 1 2 The autoclave is a portable electrically operated steam unit designed for sterilizing unwrapped instruments utensils and other items It operates automatically at th
5. 5 FAULT DIAGNOSIS 3 2 The following table sets out a number of typical faults which could occur and indicates likely causes and how to rectify them For maintenance procedures refer to Parts Replacement And Adjustment Cross references in the Remedy column refer to paragraphs under Part Replacement and Adjustment WARNINGS Switch off and disconnect mains power supply before removing the autoclave cover or doing maintenance procedures During certain procedures mains voltage may have to be present with the cover removed and extreme care should be taken to avoid contact with mains voltage Check that chamber is at atmospheric pressure before opening the door Should the door be opened beware of possible very hot water or steam escaping from the chamber Fault 1 Nothing happens when power switched on No display a f Fault Diagnosis Table Possible Cause Mains supply failure Main fuses blown rear panel Faulty power switch Thermal fuse blown Transformer failed Short circuit on 24V circuit Remedy Check mains supply also plug and supply cable for loose connections or breaks Replace fuse s Replace power switch Replace thermal fuse Check transformer secondary voltage 20V a c rms Replace transformer if output is zero section 3 6 Check sensor fill valve vent valve etc for short circuit Replace where necessary Note Blown fuses can indicate further pro
6. 28 Autocheck 28 Routine Autoclave Calibration 28 General 28 7 Calibration procedure 29 7 Safety valve se 29 s Operational test 30 10 11 PART 4 ILLUSTRATED PARTS LISTS Pipes and fittings latest models 30 Illustrated parts list 1 Pipes and valves 31 Illustrated parts list 2 General spares 33 Illustrated parts list 3 15 Heater and process controls 35 15 20 ILLUSTRATIONS 50 Fig 1 SES 2000 Autoclave 6 20 Fig 2 Autoclave General Arrangement 12 20 Fig 3 Autoclave Pipes and Valves s 18 20 Fig 4 Autoclave Heater amp Process Controls 14 20 Fig 5 Door interlock microswitch 21 24 Fig 6 Filter unit disassembly y 24 21 Fig 7 Switch identities and function 25 22 Fig 8 Autoclave Controller boards 30 22 Fig 9 Pipes and valves 32 22 Fig 10 General spares 34 22 Fig 11 Heater and process controls 36 22 Fig A1 A5 Autoclave printer details 40 23 23 TABLE Fault Diagnosis table 15 me APPENDIX A 23 Autoclave printer 39 24 24 APPENDIX B Schematic Pipes and Valves 41 24 25 APPENDIX C ae Schematic Wiring 42 Page 3 of 43 SES 2000 AUTOCLAVE TECHNICAL DATA Standard Version Electrical Data Supply 220 230 240V a c at 50 60Hz 110V a c at 50 60Hz Nominal Loading 230V 2kW 8 7A 110V 1 4kW 12 7A Fuses Chassis 230 240V 10A Part No 380003 x2 400mA Part No 696181 x1 220V 13A Part No 380002 x2 400mA Part No 696181 x1 110V 16A Part No 111940 x2 800mA Part No 380004 x1
7. APPENDIX C Schematic diagram CE version see note page 38 Options chart Voltage Overheat rating neon Relay board 301481 230V F10A F10A F400mA 100K 230V 230V F15A F15A F400mA 100K 230V Heater Cycling thermostat Variable capacitor Daughter PCA Temperature sensor J6 Display Discharge Temperature sensor J5 Control Chamber sensor Dicono Solenoid 490335 door lock 10 pin ribbon cable Central earth point BN F1 9 D 9 L Thermal E fuse i F2 gt p N Mains on off Mains input i OV Printer Printer Power PCA 16 pin ribbon cable 490337 Optional Optional Mains transformer ST SM8l eater STD 2kW LONG 75kW ESCHMANN Transformer tappings Rb Re BE Bue Page 42 of 43 Appendix C SES 2000 AUTOCLAVE amp ESCHMANN APPENDIX C Schematic diagram non CE version see note page 38 Options chart Voltage Overheat i R1 rating neon Heater Transformer tappings STD 230V F10A F10A F400mA 100K 230V 2kW Varistor o S S Relay 3 4 LONG 230V F15A F15A F400mA 100K 230V Jo 75 nw Heater Cycling thermostat pamm p 7 Fill valve Variable capacitor Wire colours Rb Red Daughter PCA Discharge Temperature sensor Door switch Temperature sensor Chamber sensor 490335 10 pin ribbon cable Central earth point BN F1 gG D L Thermal E fuse F2 OD N Mains on
8. Fig 6 Filter Unit Disassembly Discharge Line Filter Fig 3 item 10 and Fig 6 3 23 The filter in the discharge line should be removed andcleaned approximately every 12 months as follows a Ensure all water has been discharged from chamber back into the reservoir and switch off unit b Remove filter assembly from discharge line disassemble components and rinse clean all parts using distilled water only c Allow components to dry then reassemble filter unit Ensure that copper washer is correctly positioned with bevel side of washer against filter body If washer is damaged renew it Printer Fig 2 item 22 3 24 Remove the printer as follows a Disconnect all electrical connections noting their position and orientation for correct reconnection b Remove two screws from the printer securing bracket Withdraw the printer through the front panel Refit the printer using the reverse removal procedure Page 24 of 43 SPECIAL OPERATING MODES Demonstration Mode 3 25 Demonstration mode provides a selection of the available display messages for use at exhibitions and for customer education in whatever language has been selected To enter this mode proceed as follows a Switch off power b Push and hold the 134 C and 121 C without drying programme buttons and switch on power c Release programme buttons when messages start to appear 3 26 To exit the demonstration mode switch off power to the unit then
9. OESCHMANN SES2000 AUTOCLAVE 699215 ST SM8I OESCHMANN Introduction Description Maintenance Illustrated parts list Read these Instructions before use Keep these instructions in a safe convenient place for future reference Read in conjunction with the Publications detailed in Section 1 5 This Service Manual applies to the following Autoclave REF numbers Note In the parts list section reference is also made to parts required for earlier versions SES 2000 STANDARD from Serial Number SCB8B0000 or SED8B0000 for non CE without printer 87 028 04 87 028 20 87 028 36 87 029 05 87 029 13 87 029 21 87 029 37 87 029 45 87 029 54 87 029 62 87 029 70 87 029 78 87 029 86 87 030 03 87 030 11 87 030 27 87 030 43 87 030 60 87 031 03 87 031 68 with printer 87 028 12 87 028 28 87 028 44 87 029 26 87 030 65 87 031 11 87 031 76 SES 2000 LONG from Serial Number LSCB8B0000 or LSED8B0000 for non CE without printer 87 028 53 87 028 69 87 028 85 87 028 90 87 028 97 87 029 29 87 029 94 87 030 70 87 031 19 87 031 84 87 020 05 87 022 01 87 022 17 87 020 21 87 022 49 87 022 66 with printer 87 028 61 87 028 77 87 030 75 87 031 27 87 031 92 87 020 13 87 022 09 87 022 25 87 020 29 87 022 58 87 022 74 Note The alpha parts of the SN are significant Eschmann After Sales Service Department The Eschmann After Sales Service Department is staffed and equipped to provide advice and assistance dur
10. air valve section 3 9 Fill reservoir Empty reservoir strip pipework and clean Clean reservoir Refill with distilled water Replace air valve section 3 9 Close door Adjust switch lever position or fit new microswitch if adjustment seems to be correct section 3 10 Clear error as detailed in section 3 41 and restart cycle Repeat a Adjust switch lever position or fit new microswitch section 3 10 WARNING Should door be opened beware of possible hot water leaking from chamber Clean or replace air valve section 3 9 Fit new safety valve see section 3 50 and 3 51 See Routine Calibration Procedure section 3 44 As c above Fit new temperature sensor section 3 13 Fit new controller board section 3 7 Continued ST SM8l OESCHMANN 9 Fault e LoH20 or Error displayed before sterilizing temp reached H20 or Error displayed after sterilizing temperature reached and fall below set temperature Temperature differs and Error displayed ST SM8l SES 2000 AUTOCLAVE PART 3 MAINTENANCE Possible Cause a No water in chamber b Water fill valve is leaking c Discharge valve leaking d Temperature sensor fault e Solid state relay failed f Heater failed g Controller fault a Steam leak b Water fill valve leaking c Discharge valve leaking d Temperature sensor fault e Solid state relay failed No voltage across heat
11. decrease the number 1 When the number is correct press switch 3 to accept the entry Check that the display has changed to yrOO and Q Enter the year 00 1990 to 09 1999 by pressing switch 1 to increase the number or Switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry Check that the display has changed to on01 and Q Enter the month 01 January to 12 December by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the numberis correct press switch 3 to accept the entry Check that the display has changed to hi00 and U Enter the first two digits of the serial number by pressing switch 1 to increase the number or switch 2 to decrease the number L When the number is correct press switch 3 to accept the entry Check that the display has changed to Lo00 and U Enter the last two digits of the serial number by pressing switch 1 to increase the number or switch 2 to decrease the number U When the number is correct press switch 3 to accept the entry The autoclave serial number is now set Note that the display has changed to on01 indicating that the time and the date must be entered as described in section 3 38 and 3 39 ST SM8l 3 38 The date and time comprises five elements m Oovodo The month on01 The year yrO0 The day dy01 The hour hr00 ba
12. off Mains input i OV Printer Printer Power PCA 16 pin ribbon cable 490337 Optional Optional Mains transformer Page483o0f48 00000000000 STSMBl
13. port Fig 4 item 19 at the rear of the chamber Ensure that the chart recorder has thoroughly warmed up b Switch offthe autoclave Ensure the water reservoir is full and for safety reasons ensure that the reservoir is then properly covered Ideally a test load should be placed in the chamber but this is not essential With power switched off press and hold the two centre buttons on the front panel 121 C without drying and 134 C with drying Holding in these two buttons switch on power The display CALIB will appear the solenoid door lock will engage CE ONLY see note page 38 FILL will be displayed for approximately 150 seconds followed by HEAt as the heater is switched on The unit will heat to the temperature reached during the 121 C cycle c When the temperature has been achieved and the machine has been in the sterilizing mode for 5 to 6 minutes calibrate to between 121 C and 124 C on the chart recorder Carefully adjust R 17 on the controller board clockwise to increase until this temperature is achieved Adjust the control a little at a time and observe the effect after each adjustment Once this setting is correct the display should read values similar to those shown on the chart recorder Note 1 If the chart trace sawtooth effect is excessive switch off the sterilizer wait for 10 seconds and switch on to allow the chamber contents to discharge back to the reservoir then check the
14. replace safety valve see section 3 50 and 3 51 Recalibrate controller board section 3 44 Continued ST SM8l OESCHMANN Fault 16 Excessive noise from reservoir during discharge 17 Thermal fuse blows and overheat warning lamp illuminates 18 Pressure gauge reads incorrectly too high or too low 19 Door stiff to open ST SM8l SES 2000 AUTOCLAVE PART 3 MAINTENANCE Possible Cause a Positioning of discharge line in reservoir incorrect a Failure of heater thermostat cutout to reset automatically b Wiring fault c Failure of component in solid state relay d Thermal fuse fault These can age with use a Gauge fault b If gauge reads high air valve sticking c If gauge reads low thermocouple calibration faulty a Door mechanism needs lubricating b Gasket mating surfaces sticking Part 3 Remedy Check cooling coil position Replace heater thermostat section 3 12 Look for evidence of short circuits and correct as necessary Change solid state relay section 3 15 or 3 16 Replace Thermal fuse section 3 5 Adjust against a known pressure source or replace pressure gauge section 3 22 Clean or replace air valve section 3 9 Check temp erature calibration Check temperature with thermocouple and recalibrate section 3 44 Lubricate hinge pivots with silicone compound b As for Fault 14 a Page 19 of 4
15. serial number comprising two groups 11 is the Hi group thousands and hundreds 27 is the Lo group tens and units Q Themodification state od01 whichis represented by aletter from A to Z is entered into the autoclave as a two digit code 01 A to 26 Z Note that on the printout the letter will be shown not the number U The year of manufacture yr00 which is represented by the last digit of the year is entered into the autoclave as a two digit code 00 1990 to 09 1999 Q The month of manufacture on00 which is represented by the last two digits of the month is entered into the autoclave as a two digit code 01 ST SM8l OESCHMANN SES 2000 AUTOCLAVE Part 3 PART 3 MAINTENANCE Entering the Time and Date Fig 7 January to 12 December Note that on the printout the month will be shown as a letter A January to L December The serial number hi00 and lo00 which is represented by four digits is entered into the autoclave as two two digit groups hi and lo hi the thousands and the hundreds and lo the tens and the units Thus for serial number 1127 hi 11 and lo 27 Entering the Autoclave Serial Number Fig 7 3 37 Enter the autoclave serial number as follows a Check that the display shows od01 and Q Enter the modification state 01 A to 26 Z by pressing switch 1 to increase the number or switch 2to
16. the body of the unit it can be replaced by a standard 7805 voltage regulator This avoids the need to change the entire controller In such a case some re adjustment of the calibration will be required Door Seal Fig 2 item 10 3 21 Openchamberdoorand remove central aerotight nut stainless steel washer retaining plate and door seal When fitting a new door seal ensure the nut is tight Check O ring behind seal spinning and replace if necessary Use a smear of silicone grease on the O ring Note Do not allow silicone grease to come into contact with the door seal Fig 2 item 10 Pressure Gauge Fig 3 item 3 3 22 Ensure chamber is at atmospheric pressure and remove plumbing connection from rear of gauge Disconnect bracket from panel by removing two nuts spring washers and nylon spacers Note that when fitting gauge the spacers must be replaced between gauge and bracket Gauge adjustment is possible by rotating the adjusting screw atthe rear of the gauge but this should only be carried out when the chamber is at working pressure 2 2 bar on the 134 C cycle CAUTION When adjusting the pressure gauge it is important that the adjustment screw should not be rotated more than a few degrees in either direction Permanent damage to the mechanism could result if this caution is ignored Page 23 of 43 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE Olive Adapter Copper washer Body Gauze filter
17. the controller Discharge Valve Fig 3 item 2 This valve is used principally at the end of the sterilizing cycle to allow water and steam vapour from the chamber to pass back into the reservoir It is also operated at other times during the cycle The valve is electrically operated from a 24V d c supply generated on the controller board Printer Interface Board Fig 4 item 20 This board is fitted in autoclaves which have a printer The board interfaces the printer with the integrated microprocessor based control board Page 8 of 43 m Air Valve Fig 3 item 6 At the start of a cycle the chamber is full of air and for a satisfactory result almost all of this has to be removed This is done by a small air valve This valve contains a ball and spring which allows air displaced by the steam generated in the chamber to pass out into the reservoir Once steam starts to pass the ball the ball then lifts and seals A small bleed remains however and itis quite normal for small quantities of steam to escape into the reservoir throughout the cycle Safety Valve Fig 3 item 5 This is fitted on the manifold at the rear of the chamber and is factory set to release excess pressure from within the chamber It is a primary safety device and should not be readjusted Temperature Sensor Fig 4 item 4 This is used to sense the chamber temperature and is fitted on the manifold in a position where the manifold is exposed to
18. 0146 Dividing panel 1 5 490283 Front panel without printer 1 Not available for purchase 6 490282 Front panel with printer 1 7 Pressure chamber assy See Parts List 1 8 490228 490178 Carrier assembly tray 1 9 Tray REF 87 040 07 4 10 490046 Reservoir requires kit 112472 1 i 425170 Surface tension breaker 7 425062 Reservoir lid rectangular without switch hole 11 475872 Reservoir aperture cover round 1 12 425146 Ring grey rubber 1 1 425165 Ring adhesive 13 425141 Ring seal silicone 1 1 14 480301 Foot c w fixing screw 4 380045 Spacer foot 2 15 490302 490304 Door cover assy 1 16 Door assy 1 17 480315 Door beam assy 1 18 490076 Door knob 1 19 427011 Door secondary latch 1 20 427023 Spring secondary latch 1 21 490017 Door pressure assy 1 22 424238 Seal retaining rim 1 23 427037 Door seal gasket 1 1 24 427015 Retaining disc seal 1 25 427090 Seal washer steel 1 1 26 713651 O ring on older models 1 1 27 307232 Aerotight nut 1 1 28 427010 Safety catch door 1 29 Tray lifter REF 87 040 90 1 30 301409 Drip tray 1 31 425188 Accessory pack containing 1 4 off each cups and spacers for cabinet feet 32 REF 87 040 66 Pouch rack accessory A R 33 490291 Printer assembly 1 34 490397 S S R B Insulation 1 35 424395 Fuse cover 1 36 424396 Water shield control board 1 37 427007 Door spindle assembly 1 38 427008 L
19. 0V rms a c supply ST SM8l OESCHMANN SES 2000 AUTOCLAVE Part 3 PART 3 MAINTENANCE U Replace varistor across mains terminals of solid sate relay Solid State Relay Fig 4 item 8A CE ONLY see note page 38 3 16 Remove electrical connections from relay board notingtheirattachmentpositions Un fastenfourscrews to remove relay board from dividing panel Un fasten four screws from behind the board to release the solid state relay unit together with its heat sink Un fasten and remove the heat sink When fitting a replacement relay unit coatthe face which mates with the heat sink with a thin layer of zinc oxide based heat transfer compound having first cleaned off old compound if re using the original heat sink Fit heat sink to new relay unit fit relay to board and fit board to autoclave dividing panel by reversing the disassembly procedure Re connect electrical connections Mechanical Relay Fig 4 item 21 CE ONLY see note page 38 3 17 To remove mechanical relay unit cut the plastic cable tie then unplug the relay unit from the relay board When fitting replacement relay unit fit a new cable tie Heating Element Fig 4 item 1 3 18 To replace heating element proceed as follows a Remove electrical connections from heating element terminals CAUTION Avoid kinking the capillary tube b Remove sterilizing trays and tray carrier and remove element clamp from inside chamber together with heater thermo
20. 3 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE PARTS REPLACEMENT AND ADJUSTMENT WARNING Switch off and disconnect mains power supply before removing autoclave cover or doing maintenance procedures Check that chamber is at atmospheric pressure before opening the door When the door is opened beware of possible very hot water or steam escaping from the chamber IMPORTANT NOTE On the latest units the copper pipes and related fittings have been replaced by silicone tubing and modified fittings Please refer to the parts list for details during any part replacement Removing Cover Fig 2 item 19 3 3 To remove the cover CAUTION An earth lead is connected between the terminal blockandthe earth stud inside the rear ofthe cover Disconnect the lead before removing the cover completely a Unscrew and remove the four cover screws two on each side from the casing lower edge b Remove reservoir access cover c With unit facing towards you remove the cover lifting it from the rear of the unit first Refitting Cover Fig 2 item 19 3 4 To refit the cover a Re connect the earth lead between the terminal block and the earth stud inside the rear panel of the cover b Carefully locate the front upper flange of the cover in the small gap between the stainless steel dividing plate and the front panel of the unit then lower the cover down in position c Refit the four cover screws and the reservo
21. 6 3 9 Theair valve is fitted in the manifold at the rear of the sterilizing chamber To remove the air valve a Remove plumbing connection on reservoir side hold large hexagon body stationary while removing the pipe nut Use the small hexagon body to unscrew valve from manifold Note Do not disturb the relationship between the large and small hexagons as this would upset the spring calibration inside the valve When fitting replacement valve use PTFE tape to make a leakproof joint Note It is recommended that an air valve suspected of unsatisfactory performance is renewed In an emergency or where it is known that the valve has been subjected to sticky materials it can be washed in a solvent such as white spirit methylated spirit or paraffin Ensure that the valve is dried thoroughly before refitting it Door Interlock Switch Fig 5 3 10 The door interlock microswitch is operated by an actuatorlever Toremove and dismantle the microswitch actuator lever proceed as follows a d e Loosen clamp screw 6 and slide microswitch actuator lever 5 complete with leaf spring 4 from actuator lever 2 and then remove nylon washer 3 Withdraw actuator lever 2 from the front of the panel and remove nylon washer 1 Remove clamp screw 6 and washer 7 to release leaf spring 4 Remove nut 8 and striker screw 6A Inspect and renew all defective items Reassemble and adjust the mechanis
22. Fill and Discharge Valves Fig 3 items 1 and 2 3 14 To remove and replace the fill and discharge valves proceed as follows Note When removing a fill valve ensure that the reservoir has been drained a Disconnect electrical connections from valve and release plumbing connections at each side b Note carefully the orientation of the valves fill and discharge ports to ensure correct re connection c Remove pipework from valve then remove securing screws d Examine the unit If only the valve coil has failed e g short circuiting it can be renewed The valve can also be stripped and cleaned although care must be taken to ensure no damage is caused to valve seat or rubber sealing plunger CAUTION Do not lose the small internal springs in plunger e Fit new or refurbished valve in exactly the same way as the original one making connections as noted in b Solid State Relay Fig 4 item 8 Non CE units see note page 38 3 15 Remove electrical connections from relay noting their relative positions and remove the two securing screws When fitting a replacement relay unit ensure that its mating face is coated with a thin layer of zinc oxide based heat transfer compound also avoid overtighteningthe connectorscrews when reconnecting the wiring For CE units see 3 16 Note U Replacement unit should be rated at 25A 400V repetitive reverse blocking voltage or greater i e it must be suitable for use on 24
23. In the U K the Department of Health recommend that Sterile Water for Irrigation is used in bench top Autoclaves NHS Estates document HTM2031 Page 6 of 43 If Sterile Water for Irrigation is not being used then Eschmann strongly recommend the use of either distilled water deionized water purified water or water treated by the reverse osmosis process These types of water are low in dissolved solids and can help reduce the effects of tap water detailed below DO NOT USE TAP WATER this is high in dissolved solids and can deposit lime scale block filters and cause damage to the pressure vessel Eschmann also recommend that the reservoir is drained allowed to dry and is refilled on a weekly basis with the type of water detailed in a or b above At every service interval the reservoir must be removed be thoroughly cleaned and dried and then refilled This will reduce the build up of contaminants in the water that may cause blocked filters and or damage to the pressure vessel Your local Health Authority may suggest that you change the reservoir water more frequently Eschmann advise you to follow your local Health Authority s recommendations 1 9 Check the drain tap is not damaged or leaking and return the tube and drain tap into its location under the autoclave to prevent damage or accidental opening IMPORTANT NOTE If the drain tap is found to be damaged or leaking replace itas soon as possible
24. O Limit stops 4 2 3 4 5 6 6 7 8 9 1 Fig 5 Door Interlock Switch Page 21 of 43 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE Solenoid Door Lock Fig 4 item 22 CE ONLY see note page 38 3 11 Maintenance procedures will depend upon whether the malfunction is mechanical e g bolt or return spring sticking or due to solenoid unit failure Proceed as follows a Switch off and disconnect mains power b To remove locking bolt compress the spring with a suitable tool and open the autoclave door to provide access to the slotted bolt head screw c Grip the solenoid plunger forward of the E clip and insert a screwdriver in the slot of the locking bolt head to remove the locking bolt d Before refitting or replacing the locking bolt apply a little Loctite 542 threadlock to the thread of the solenoid plunger e Refit the nylon washer in the correct position f Toremove the solenoid unit proceed as in b and c and detach the electrical connector from the solenoid coil then remove the solenoid bracket fixing screws from the chamber head ring Fit replacement solenoid unit by reversing the removal procedure Heater Cycling Thermostat Fig 4 items 2 and 3 3 12 To remove and replace thermostat proceed as follows a Switch off and disconnect mains power Then detach electrical connections from thermostat noting terminals for re connection b Situated inside the chamber bene
25. SMBI Page 13 of 43 Part 2 SES 2000 AUTOCLAVE ESCHMANN PART 2 DESCRIPTION Note Items 4 and 4a are fitted to the underside of chamber manifold but shown here for clarity 1 Heating element 11 Transformer 2 Thermostat sensor bulb 12 PCB controller 3 Cycling thermostat 13 Terminal block 4A Temperature sensor 14 Power supply cable 4 Sensor retaining plate 15 Programme selector buttons 5 Water level sensor 16 Light emitting diodes LED s 6 Door interlock microswitch 17 Power on off switch 7 Thermal fuse 18 Overheat warning lamp 8 Solid state relay 19 Thermocouple entry port 8A Solid state relay 20 Printer interface board CE ONLY see note page 38 21 Mechanical relay Relay protection 9 Fuses 10A 15A or 16A board CE ONLY see note page 38 10 Fuse 400mA or 800mA 22 Solenoid door lock CE ONLY see note page 38 Autoclaves which incorporate a printer are fitted with two temperature sensors Fig 4 Autoclave Heater and Process Controls Page 14 of 43 ST SM8l OESCHMANN FUSES Fig 4 and 8 SES 2000 AUTOCLAVE PART 3 MAINTENANCE Part 3 3 1 The autoclave is protected by four fuses Three mains supply fuses are fitted on the autoclave back panel Fig 4 The fourth fuse process and control circuits is fitted on the controller board inside the autoclave Fig 8 Printer versions have an extra fuse on the printer PCB All fuse ratings are given in Technical Data pages 4 and
26. a small volume of steam bled through the air valve This device with its associated leads mounting plate and connector together form a single assembly The sensor controls the temperature within the chamber and also the display temperature Thermocouple Entry Port Fig 4 item 19 This can be used to insert a thermocouple into the chamber drain line to allow the operating temperature to be measured and adjusted if necessary Water Drain Pipe Fig 3 items 8 and 9 This provides a means of emptying the reservoir for cleaning or for transportation PCB Controller Board Fig 4 item 12 The autoclave has an integrated microprocessor based controller The controller handles every aspect of management of the machine which includes operation andcontrol of the digital display the light emitting diodes and response to the programme selection push buttons The controller receives information from the temperature sensor and from the door interlock switch and is able to detect a number of errors and the times relative to the cycle run when these occur In addition to controlling the sterilizer in the user mode the controller also supports a demonstration and an engineering mode see Special Operating Modes The controller operates the heater via the solid state relay and also controls the operation of the water fill and discharge valves A detailed knowledge of the operation of the controller is not necessary in order to
27. and the heating element will be switched off by a thermal cut out device Schematic diagrams 2 26 Appendix B shows a schematic diagram of the Pipework and Valves and Appendix C shows a schematic diagram of the Electrical connections Page 11 of 43 Part 2 SES 2000 AUTOCLAVE ESCHMANN PART 2 DESCRIPTION OONDARWND Process display window Pressure display window Control panel Door latching handle Pressure door Secondary door latch Door cover Seal retaining rim Seal retaining disc Door seal O ring on older models Aerotight nut Door safety catch Pressure chamber 19 Unit cover Work tray 20 Front panel Reservoir access cover 21 Chassis Reservoir 22 Printer Cover screw self tapping 23 Link Now replaced by nut and spring washer see Parts List 2 item 27 Page 12 of 43 Fig 2 Autoclave General Arrangement ST SMB8lI ESCHMANN SES 2000 AUTOCLAVE Part 2 PART 2 DESCRIPTION o Push to open Press to close Current drain tap Note correct orientation and location on drain tube 1 Water fill valve 7 Pressure door lock 2 Discharge valve 8 Reservoir drain tube 3 Pressure gauge 9 Drain tap 4 Chamber manifold O Filter unit 5 Safety valve 1 Coil 6 Air valve NOTE On the latest units the copper pipes and fittings have been replaced by plastic tubing and modified fittings Refer to the parts list for more details Fig 3 Autoclave Pipes and Valves ST
28. ath the tray carrier is the clamp which secures thermostat sensor to the heater carefully remove the clamp CAUTION Do not kink capillary tube c Disconnect thermostat body from dividing panel 2 screws then carefully unscrew gland from rear of chamber manifold through which the capillary tube connecting thermostat sensor to thermostat unit passes d To fit replacement thermostat reverse the procedure described for removal Note that it is necessary to use PTFE tape or a suitable sealing compound to make the joint between the gland and the chamber fitting Temperature Sensor Fig 4 item 4 Note Autoclaves which incorporate a printer are fitted with two sensors 3 13 The sensor is mounted on the manifold and retained by a fibre plate To remove the sensor slide Page 22 of 43 the plate out from the manifold and slide the sensors out of the plate When removing the sensor carefully note the wire colour positions at the plug i e red wire towards edge of controller board Remove the plug from the controller board When fitting replacement unit coat the end of the sensor with a thin layer of zinc oxide based heat transfer compound and ensure that no dirt or grit enters the mounting hole Note When a new temperature sensor is fitted it will usually be necessary to make some small adjustments to R17 and R14 on the controller board In addition the autoclave must be re calibrated see Routine Calibration Procedure
29. ave The cut out is self resetting and will remake when the temperature drops Note that operation of the thermostat cut out during the drying phase of the cycle is quite normal Thermal Fuse Fig 4 item 7 This is connected so as to remove power from the heater if a serious overheating condition should occur Note however that operation of this device is unlikely to occur since the heating element is already protected by the heater cycling thermostat Fuses Fig 4 items 9 and 10 The unit has four fuses as follows U Three fuses on the rear panel of the cabinet rated as shown under Technical Data The two larger fuses are connectedinto the mains supply to the unit The smaller fuse protects the primary circuit of the transformer QO A fourth fuse onthe printed circuit board and rated at 2A protects the secondary circuit of the transformer and other parts of the controller Note Units with a printer have an extra fuse which is fitted on the printer PCB Transformer Fig 4 item 11 This converts the incoming mains voltage to 20V a c to operate the controller and the water fill and discharge valves A non resetting thermal fuse is fitted in the transformer secondary check for secondary continuity when fitting areplacementtransformer Water Fill Valve Fig 3 item 1 This valve is used to control the water fill sequence It is electrically operated froma 24V d c supply which is generated and signalled from
30. blems Always investigate the reason for any fuse blowing but bear in mind that fuses can age and blow for no other reason 2 Door cannot be opened ST SM8l a Pressure door lock jammed a Replace pressure door lock section 3 8 To open chamber door disconnect body from unit section 3 10 and pull it backwards so that the locking bolt clears the door Continued Page 15 of 43 Part 3 Fault 3 Chamber will not fill LoH2O displayed 4 Display still shows door after programme selector button pressed 5 Display shows ERR 2 after programme selector button pressed 6 Safety valve operates even though temp is below 136 C See also Fault 15 Page 16 of 43 SES 2000 AUTOCLAVE PART 3 MAINTENANCE Possible Cause b Pressure in chamber c Vacuum in chamber No water in reservoir b Water fill valve or associated pipes blocked c Air valve stuck in closed position a Door not correctly closed b Door interlock microswitch out of adjustment a Door not properly closed b Door opened after a cycle started c Door switch out of adjustment a Air valve sticking b Safety valve fault c Check calibration of 134 C cycle d Re calibration needed e Temperature sensor fault f Controller fault ESCHMANN Remedy Switch on power to release pressure in chamber As b to open door then clean or replace
31. bon by turning faceted disc Fig A2 2 on cartridge clockwise using finger or fingernail g Fit paper roll as described above Page 39 of 43 Appendix A SES 2000 AUTOCLAVE ESCHMANN Spares Pack A spares pack is available comprising Five paper rolls Two ribbon cartridges The spares pack is available from Eschmann Equipment please quote REF 87 034 05 Setting Date and Time Fig A5 1 Tochange the clock setting e g from GMT to BST or the reverse proceed as follows a Select mains on off switch to 0 off b Pushandholdswitch 1 and switch 4 simultaneously then select on off switch to l on c The display will read 01 d Thenproceedasdescribedinparagraph2 a to g 1 Paper Insert Slot 2 Printer Mechanism Chassis 2 To set the date and time proceed as follows a If closed open chamber door Fig A2 Paper Feed b Displayreads 01 Pushandholdswitch 1 Observe that number changes to 02 03 etc through to 12 Also note that pushing and holding switch 2 makes the number decrease Use switch 1 and switch 2 to set the number corresponding to the month 01 January etc Push switch 3 to retain selection c Display reads dy01 Again use switch 1 and switch 2 to display the day of the month push switch 3to retain the day Note The computer will prevent entry of dates such as 31st Nov d Display reads yr00 Use switch 1 and switch 2 to set any year from 00 to 99 e g 97 1997 Th
32. carry out the instructions in section 3 48 and run the autoclave up to 134 C b When 134 C is reached switch off power at the power on off switch c Enter the Engineering Mode see section 3 27 d Switch on the heater by pressing and holding in switch 4 Fig 7 e With the heater switched on the temperature will rise without control from the controller The safety valve should start to vent at approximately 138 5 C read from the chart recorder The temperature and pressure should increase until the safety valve operates and maintains pressure below a maximum of 2 9bar 42 p s i at 142 5 C Operational Test 3 50 The safety valve should be checked every 12 months for correct function and test of set pressure full flow and reseat pressures Particular care should be taken with the use of sealing compounds and PTFE tape to ensure that they do not enter the valve 3 51 Itisrecommended that adjustments maintenance and repair of safety valves should only be carried out by Eschmann personnel or accredited agents Removal and installation of the valve is a straightforward procedure but on installation wrap PTFE tape around the valve threaded pipe fitting Page 30 of 43 VOLTAGE DAUGHTER REGULATOR BOARD Controller Board with Daughter Board switch 5 VOLTAGE Eue REGULATOR G Jus 2309 R17 R14 Controller Board without Daughter Board Fig 8 Autoclave Controller Boards
33. ded that the calibration is checked at least every twelve months or more often if the unit is heavily used or if local codes of practice require it 3 46 For the purpose of this description it will be assumed that the autoclave is working correctly and that a routine temperature calibration is required 3 47 Itis particularly important that the following points are noted before calibration is attempted There must be no steam leaks b The air valve must close between 99 and 104 C c The machine should have been run sufficiently to become thoroughly warm Note 1 A machine with suspect calibration should only be run using the calibration sequence described below This should avoid the possibility of the safety valve lifting due to excess chamber pressure which might be the case if the 134 C programme were to be selected Note 2 To ensure accurate calibration the cover should be replaced not fixed whenever possible during stages 3 48 b toe ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 3 PART 3 MAINTENANCE Calibration Procedure Fig 8 3 48 The autoclave control programme contains a special calibration sequence to ensure accurate calibration in the shortest possible time Do not set up the sterilizer by carrying out normal sterilizing cycles it is important to proceed methodically as follows a With the unit cover removed insert needle thermocouple probe from a calibrated chart recorder into the manifold test
34. door and H2O displayed 15 Safety valve leaks See also Fault 5 Page 18 of 43 SES 2000 AUTOCLAVE PART 3 MAINTENANCE Possible Cause a Discharge valve fault b Wiring fault Blockage in discharge line Controller fault e Filter blocked Low mains voltage b Autoclave overloaded c Slow discharge at end of cycle a Controller failed to re set properly b Controller fault a Temporary mains failure during cycle a Door gasket not sealing correctly b Check centre nut and seal a Dirt on valve seat b Check pressure gauge display to see if sterilizing temperature is set too high ESCHMANN Remedy Test valve using Engineering Mode Replace if faulty Ensure connections to discharge valve are sound Strip pipework and clean Replace controller board section 3 7 Clean or replace filter section 3 23 Check supply to autoclave Avoid overloading See tray loading shown in Technical Specification See Fault 10 c and e Switch off power wait for approx 5 seconds and switch on again Replace controller board section 3 7 Carry out error cancellation procedure section 3 41 then reselect and restart cycle Clean mating surface and gasket around door with a soapy cloth If leakage persists replace gasket Replace O ring Fig 2 item 11 With low pressure in chamber CAREFULLY operate valve by hand If leakage persists
35. e touch of a single programme selector touch button and has four programmes 134 C and 121 C both with and without drying 1 3 The autoclave is available with short or long chambers and with or without an integral printer for recording details of the sterilizing cycle Details of the printer are given in Appendix A 1 4 Someofthe information in this manual refers to models built to comply with the Medical Devices Directive and carry the CE mark to indicate compliance Where the section of this manual refers only to these models it is marked CE ONLY ASSOCIATED PUBLICATION 1 5 Separate installation and user instructions are given in the SES 2000 Autoclave Instructions for Use ST IM30 SERVICING 1 6 Ensure that routine servicing is carried out at regular intervals by either Eschmann trained personnel or suitably trained engineers only otherwise the warranty could be infringed 1 7 Keep the Instructions for Use and this Service Manual readily accessible for reference purposes prior to and during operation cleaning and servicing of the autoclave CAUTION In common with other systems containing static water reservoirs water used in this unit can become contaminated over a period of time or following an aborted cycle and should be treated as a potential risk of infection 1 8 Eschmann recommend filling the reservoir with Sterile Water for Irrigation This is low in dissolved solids and has a low microbial count
36. ect LS3 and check that the display changes to SES Page 26 of 43 e Press switch 1 and check thatthe display changes to Print f Press switch 1 and check thatthe display changes to CyC 0 cycle counter g Press switch 2 and check thatthe display changes to Eng English h If English is the required language press switch 1 to accept the Eng code If English is not the required language press switch 2 until the required language code is displayed as follows O Fre French QO Ger German O ta Italian U Spa Spanish U Por Portuguese i Press switch 1 to accept the required language code Display changes to CE press switch 1 for CE units press switch 2 for non CE units j The display will have changed to od01 indicating that the autoclave serial number must be set as described in section 3 36 and 3 37 k After setting the serial number note thatthe display has changed to Set and then to d t and then to on01 indicating that the time and date must be set as described in sections 3 38 and 3 39 Setting the Autoclave Serial Number 3 36 The autoclave serial number which is on the dataplate on the inside of the autoclave door and on the back of the autoclave cover comprises four parts sep 4 n 1127 D indicates the modification state 4 indicates the year of manufacture H indicates the month of manufacture 1127 is the
37. el body Thermostat assy Clamp thermostat sensor bulb Actuator arm microswitch Sensor temperature assy Sensor temperature assy for units with printer Plate retaining sensor Lamp neon red overheat Power switch on off Controller board assy Daughter board Fuse F2A 20 mm Unit N e e e x PS Qty Per Recommended Holding Per Unit Per Year I e o 0d Continued Page 37 of 43 Part 4 SES 2000 AUTOCLAVE ESCHMANN PART 4 ILLUSTRATED PARTS LIST 3 HEATER AND PROCESS CONTROLS Fig 11 Part No Description Qty per Recommended Holding Item No Standard Long Unit Per Unit Per Year 13 110249 Transformer with shroud 1 7 110250 Transformer shroud 1 14 301478 Solid state relay not for CE Units 1 14A 301481 Relay control board 1 15 696952 Varistor assy 1 16 380012 Terminal block 1 17 380001 301890 Fuse holder large 2 18 301814 Fuse holder small 1 19 Fuse 2 2 Standard Long 7 380003 301871 F10A 230 240V F15A 240V 2 1 i 380002 301871 F13A 220V F15A 220V 2 1 111940 F16A 110V 1 1 20 Fuse 1 1 i 696181 F400mA 220 230 240V 1 1 il 380004 F800mA 110V 1 1 21 490080 Cable power supply assy UK 1 inc fused plug 230V 22 710894 Clamp cable 1 23 710897 Nut cable clamp 1 24 427022 Leafspring microswitch actuator arm1 25 427104 Lever assy microswitch 1 1 26 427020 Actuator arm microswitch 1 27 490337 Printer interface board 1 29 490025 CE ONLY Sole
38. en push switch 3 to retain it e Display reads hr00 Use switch 1 and switch 2 to set the hour the system utilises a 24 hour clock Then push switch 3 to retain it f Display reads in00 minutes Use switch 1 and switch 2 to show current minutes and push switch 3 to retain it g The clock is now set Fig A1 Printer 2 Faceted Disc Fig A4 Ribbon Cartridge in Position switch 1 134 C Cora Q Programmes switch 2 without drying 421 C co 2 O0r3 switch 3 Printer Mechanism NWE 134 C meCrors Printer Door Spring Loaded Retainer Programmes Sniieh Door Latch Button with drying lt Paper Feed Button 7 Paper Feed Actuator Arm amp 121 c AGO Paper Roll Paper Tear Bar Fig A5 Setting Date and time Page 40 of 43 ST SM8I Appendix B SES 2000 AUTOCLAVE ESCHMANN APPENDIX B Schematic diagram Pipework and valves AINO lt 6 ez Bs lt I mm rc Om z HOSN3GNOO HIOAH3S3H ANIVA TIa Page 41 of 43 39HVHOSIG ANY TII4 HO4 NOILOANNOO 3dIdANYLS 39018 H3rll4 yala 3znvo E ANIWA 431134 dunssdud ASYVHOSIG 3dld LN3A HIV 3o9nvo dunssaud HdgiNvHO 3901 4000 dunssdud ST SM8l DISCOVER NEW INNOVATION NEW TECHNOLOGY DISCOVER S ESCHMAN Eschmann Equipment Peter Road Lancing West Sussex BN15 8TJ England Tel 44 0 1903 753322 Fax 44 0 1903 875789 www eschmann co uk Appendix C SES 2000 AUTOCLAVE
39. enoid lock retracts d Button 121 C with drying To switch on heater press and hold in this button until HEA or if hot temperature display appears then release To switch off heater press and hold in this button again until Engin display appears then release it CAUTION The thermal fuse will blow if the heater is left switched on and the cycling thermostat is faulty e Programme 134 C without drying LED will illuminate if door switch closes f Programme 134 C with drying LED will illuminate if chamber water level sensor is immersed Note This condition can be simulated as follows With the door open and furniture removed check that LED is not illuminated Then using a long screw driver short the chamber level sensor to ground the chamber wall and check that the LED illuminates 3 29 To exit Engineering Mode switch off power to the unit then switch it on again Set Up Mode 3 30 The set up procedure will only have to be done if the printer interface board is changed Once started the procedure must be completed in full do not switch off the power before it has been completed If a mistake is made switch off the power and start again On autoclaves fitted with a printer a printout showing the main items selected within the set up procedure will be printed when the procedure has been completed Switch Identities and Functions Fig 7 3 31 Throughout the set up procedure the fo
40. er f Heater failed g Controller fault h Voltage regulator not properly mounted or loose a Recalibration required b Air valve partially blocked c Controller fault d Voltage regulator not properly mounted or loose e Temperature sensor fault Part 3 Remedy Ensure chamber water level sensor is clear of obstructions Also ensure sensor is not dirty or corroded Drain reservoir and fit new water fill valve section 3 14 Strip and clean discharge valve or fit a new one section 3 14 Fit new temperature sensor section 3 13 Fit new solid state relay section 3 15 or 316 Fit new heater if resistance of element is not approx 300hms Fit new controller board section 3 7 Carefully check for steam leak and rectify As for Fault 7 b As for Fault 7 c As for Fault 7 d As for Fault 7 e As for Fault 7 f As for Fault 7 g Secure voltage regulator see also section 3 20 Follow Routine Calibration Procedure section 3 44 Clean or fit new air valve section 3 9 As for Fault 7 g As for Fault 8 h Fit new temperature sensor section 3 13 and recalibrate section 3 44 Continued Page 17 of 43 Part 3 Fault 10 No discharge of steam water at end of cycle 11 Cycle time excessive compared with usual value 12 Unusual display when first switching on power 13 Display shows ELEC 14 Leakage of water from chamber
41. er loss early in cycle H20 ERR5 No heat ERR6 Control temperature low ERR7 Control temperature high ERR8 Monitor temperature low ERR9 Monitor temperature high These error codes will generally require investigation by an Eschmann trained engineer Front Panel Controls Fig A1 All controls for the printer are on the front of the panel a Door Latch Button To open door 1 push the door latch 2 sideways inthe direction of arrow and pull the door open to expose paper roll 4 b PaperFeedButton Ensurethe sterilizer mains on off switch is in the Il on position Press lower part of paper feed button 3 to activate paper feed which will continue for as long as the button is depressed Paper Roll Renewal CAUTION DO NOT USE ALTERNATIVE PAPER ROLLS he quality and size of paper rolls used in the printer can only be supplied by Eschmann Equipment ST SM8l Renew paper roll as follows Fig A1 and A2 a Open autoclave chamber door to provide more access b Push door latch button 2 sideways in direction of arrow and pull door open to expose paper roll 4 c If any paper remains in the printer tear end off against paper tear bar 8 and carefully withdraw the remaining paper backwards from the rear of printer mechanism 5 d Compress paper roll spring loaded retainer button 6 and withdraw empty paper spool from spindle e Take new roll of paper separate paper end from
42. eratures are displayed and measured to 0 1 C In addition the controller uses signal averaging to ensure a stable accurate display 2 15 Control of the cycle is now fully automatic with temperature information being collected via the temperature sensor Timingis controlled by the controller and cycle times cannot be adjusted By comparing measured values with known time temperature relationships the controller is able to detect faults and display them as error codes this is accompanied by an audible warning signal Note Pressing the bottom 121 C button will display the cycle counter 2 16 To ensure efficient sterilization the autoclave operates at temperatures slightly above the minimum recommended Hence the operating temperature for the 121 C cycle is set to 122 5 C and the 134 C cycle is set to 135 5 C 2 17 As the cycle enters the sterilizing phase the display shows an S flashing as a prefix to the displayed temperature At the end of the sterilizing phase the heater is turned off and the discharge valve is opened At this point a certain amount of noise from the reservoir is quite normal 2 18 Once the controller detects that chamber temperature has fallen to a safe level the flashing display End appears and an audible signal sounds to indicate that the cycle is complete When the chamber door is opened the display will show ready Note If the autoclave has a printer the printout will include the foll
43. ing normal office hours To avoid delays when making enquires please quote the Model and Serial Number of your Autoclave Please ensure you include all alpha and numeric digits of the Serial Number NOTE The Serial Number Plate is located inside the door in the top left hand corner For further information visit www eschmann co uk All correspondence relating to the after sales service of Eschmann Equipment to be addressed to UK Customers Eschmann Equipment Peter Road Lancing West Sussex BN15 8TJ England Tel 44 0 1903 765040 Fax 44 0 1903 875711 Overseas Customers Contact your local distributor In case of doubt contact Eschmann Equipment Patents and Trade marks The ESCHMANN name and logo are trade marks of Eschmann Holdings Limited Eschmann Equipment is a trading name of Eschmann Holdings Limited SES2000 is a trade mark of Eschmann Holdings Limited Patents Patents Pending plus Pat US5090033 and Pat GB2238407 Copyright 2008 Eschmann Holdings Limited All rights reserved This booklet is protected by copyright No part of it may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without written permission from Eschmann Holdings Limited The information in this publication was correct at the time of going to print The Company however reserves the right to modify or improve the equipment referred t
44. ink 1 380034 Cable saddles A R ii 380033 Self mount cable ties A R 7 301600 P T F E Tape A R 306234 Hydraulic sealant A R Not illustrated Now replaced by M6 Nut 710372 and M6 Spring washer 710721 For units with an O ring before c 1999 replace parts 21 22 and 26 with parts 21 and 22 only latest design of these parts eliminates need for O ring ST SMB8I Page 35 of 43 Part 4 SES 2000 AUTOCLAVE ESCHMANN PART 4 ILLUSTRATED PARTS LIST 3 HEATER AND PROCESS CONTROLS Note Items 9 and 9a are fitted to the underside of chamber manifold but shown here for clarity 9A 9 Fig 11 Heater and Process Controls Page 36 of 43 ST SM8l OESCHMANN SES 2000 AUTOCLAVE Part 4 PART 4 ILLUSTRATED PARTS LIST 3 HEATER AND PROCESS CONTROLS Part No Fig 11 Item No OONO O KRW Standard 412012 412008 425114 380081 301162 427021 480314 301806 301807 425124 425121 380026 416149 427020 490260 490260 490262 301127 380000 490335 490336 301797 Not illustrated ST SM8l Long 416220 380081 490338 Description Heating element 230V 2kW Heating element 230V 2 75kW Heating element 110V 1 4kW Thermal fuse assy 10A 220V 240V units Thermal fuse assy 20A 110V units Thermal fuse assy 20A Microswitch Stop pin microswitch Sensor water level assy Shouldered washer Silicone bush Insulation bush Water lev
45. ir access cover Thermal Fuse Fig 4 item 7 3 5 Detach the two female push on connectors Unhookone end of mountingspringand removethermal fuse assembly Fit replacement in reverse order and ensure that fuse body is located at the bottom of the chamber about half way between the front and the back Transformer Fig 4 item 11 3 6 Detach the transformer connections noting the position of each one Remove the transformer securing Page 20 of 43 nuts and bolts The replacementtransformer should be an identical unit To install replacement transformer reverse the removal procedure Controller Board Fig 4 item 12 3 7 Note the orientation and position of the plugs connecting the controller board to the unit and then disconnectthem Remove the bolt securing the controller board voltage regulator to the dividing panel Remove the four bolts securing the controller board to the dividing panel and remove the control board complete with the regulator To fit replacement reverse the removal procedure When mounting the voltage regulator coat the mating surface with a thin layer of zinc oxide based heat transfer compound and ensure that the bolt is well tightened When tightening the controller board securing nuts ensure that control switches do not foul the holes in the front panel through which they protrude Note U Avoid overtightening the nylon nuts securing the controller U When a new controller is fitted it wil
46. itch Fig 4 item 6 This is used to signal to the controller that the door is properly closed It is operated via a simple adjustable mechanism and should operate just as the door becomes fully closed U Pressure Door Lock Fig 3item 7 This is a safety device designed to ensure that the door cannot be opened if the internal chamber pressure exceeds approximately 0 2 bar 3 0 Ibf in The device comprises a spring loaded plunger driven by the chamber pressure via a rubber diaphragm U Solenoid Door Lock Fig 4 item 22 CE ONLY see note page 38 This lock prevents the door being opened by the operator once the cycle has been started The lock holds the door closed until the sterilizing cycle is complete It will also keep the door closed under all fault conditions As absence of power to the unit constitutes a fault this also means that the unit power switch must be switched on in order to open the door Note If it is necessary to override the electrical door lock to clear an error code this is done by switching off the power switch then after a few seconds switching it back on again while pressing and holding any one of the programme selector buttons on the front panel U Water Reservoir Fig 2 item 17 This is used to hold distilled deionized or purified water before being admitted to the chamber via the water fill valve and to receive the hot water and steam vapour emitted from the chamber towards the e
47. l Sensor Selection Printer version only 3 42 At any time during normal operation of the autoclave when the heater is operating and the temperature display is showing pressing switch 5 will switch the display to the control sensor and c will be displayed in the far left position for as long as the button is pressed This feature enables a check to be made on the control temperature in relation to the display temperature Page 28 of 43 Autocheck Printer version only 3 43 When the sterilizing phase has been reached a check is automatically made to ensure that the temperature recorded on each sensor does not exceed specific limits for the cycle selected Should this happen the appropriate error code from E6 to E9 will be displayed see section 3 40 ROUTINE CALIBRATION PROCEDURE General 3 44 The autoclave will retain its calibration well over long periods of time but occasionally and when a new sensoror controller board has been fitted re calibration is necessary The chamber temperature should be measured using a needle thermocouple connected to a temperature indicator of known accuracy In the factory a chart recorder is used The thermocouple should be inserted through the port available in the manifold at the rear of the chamber Fig 4 item 19 CAUTION Take care not to damage the internal seals in the test port fitting Avoid using a sharp pointed thermocouple probe if possible 3 45 Itis recommen
48. l be necessary to recalibrate it to suit the temperature sensor fitted inthe machine see Routine Calibration Procedure Pressure Door Lock Fig 3 item 7 3 8 To remove the pressure door lock for adjustment or replacement proceed as follows From front of pressure door lock remove screw slotted locking bolt Detach plumbing connection from rear of lock body then slacken the two hexagon headed screws in the lock housing to release lock body Clean old locking compound fragments out of threaded hole in piston if re fitting original lock unit To fit original or replacement pressure lock unit proceed as follows a Apply a drop of Loctite 542 thread lock to female thread only in hexagon shaped piston then fit lock body into lock housing on chamber neck ring and secure it with the two hexagon headed screws using thread lock part number 306033 b Attach and secure plumbing connection c Apply a smear of silicone compound MS4 to shaft only of locking bolt avoiding the thread d Insertlocking bolt into front of lock body and screw it into piston thread until bolt head stands 1 2mm clear of cabinet front plate Ensure that bolt is free to move in and out easily e Ensure locking bolt is fully engaged with the door at its maximum extension Note Do not attempt to repair a leaking or otherwise unserviceable door lock ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 3 PART 3 MAINTENANCE Air Valve Fig 3 item
49. lete If a printer is fitted it will produce a printout for checking Page 27 of 43 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE ERRORS AND ERROR CLEARING General 3 40 Various situations can give rise to an error code being displayed Any error is stored in the internal memory of the microcomputer The autoclave is automatically locked out of action until the error has been cleared The area of error is stored for service engineering and indicated briefly by the display of one of the error codes shown below on entering the Engineering mode section 3 27 This will only be displayed once as entering the Engineering mode also cancels the message Code Err 1 Clock fault or Faulty temperature sensor channel detected Meaning Err2 Door open during cycle Err3 Chamber did not fill with water LoH2O Err4 Water loss early in cycle H20 Err5 No heat Er 6 Control temperature low Err7 Control temperature high Err8 Monitor temperature low Err9 Monitor temperature high Printer version only Note These error codes are not displayed during normal operation see Part 2 section 2 23 3 41 Oncethe fault has been corrected clear the error from the microcomputer memory as follows a Switch off power to the unit b Push and hold in any one of the programme selector buttons not switch 5 and switch on power c Release programme selector button after two seconds Contro
50. llowing switches are used and they have the following identities and functions QO Switch 1 SW1 QO Switch 2 SW2 QO Switch 3 SW3 Q Switch 5 SW5 Indicates yes or up Indicates no or down Indicates accept Initiates the set up mode and is fitted in the top left hand corner of the controller board ST SM8l SWITCH 1 Ld or SWITCH 2 Br 121 c Ca DELE SWITCH 3 CEE SWITCH 4 KCE C Autoclave Front Panel CD SWITCH 5 Controller Board Fig 7 Switch Identities and Functions Power On Modes 3 32 The following switches held pressed when power is switched on will initiate their associated modes O Switch 5 0 Switches 3 and 4 OY Switches 2 and 3 Q Switches 1 and 2 U Switches 1 and 4 Set Up Mode Engineering Mode Calibration Mode Demonstration Mode Clock Set Mode Note When setting the clock to change from BST to GMT for example use the switch 1 and 4 combination not the set up procedure Page 25 of 43 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE Set Up Procedure 3 33 After changing the printer interface board the autoclave must be set up as follows WARNING During the following procedure the autoclave cover is removed and mains voltages are exposed Autoclave Without Printer Fig 4 and 7 3 34 Toset up an autoclave without a printer proceed as follows a Switch mains power on off swi
51. llowing new parts at the top rear port 427030 1 BSP chamber fitting 490037 1 Blank chamber fitting 490031 2 Chamber nut 427041 2 Copper washer 380082 1 Tee 301349 1 Twinlock 380020 1 14 BSP Plug 391132 1 14 BSP Dowty washer Long chamber The Chamber part number 490117 has been fitted with the following new parts at the top rear port 427030 1 BSP chamber fitting 380082 1 Tee 301349 1 Twinlock 380020 1 14 BSP Plug 391132 1 BSP Dowty washer 8 watt solenoid valve spares The latest from early 2007 solenoid valve tubes fitted to these machines do not have an angle for sealing to the brass manifold they rely on the O ring to seal The basic valve is part number 301906 the spare valve parts are illustrated and detailed below Description Part No Tube 110765 Armature 110764 Valve seal 111536 O ring 115454 Seal Armature a e Tube rin Nut and washers vo O Q e cen um End of armature shown with and without the seal in place ST SM8I Page 33 of 43 Part 4 SES 2000 AUTOCLAVE ESCHMANN PART 4 ILLUSTRATED PARTS LIST 2 GENERAL SPARES Fig 10 General Spares Page 34 of 43 ST SM8I ESCHMANN SES 2000 AUTOCLAVE Part 4 PART 4 ILLUSTRATED PARTS LIST 2 GENERAL SPARES Fig 10 Part No Description Qty Per Recommended Holding Item No Standard Long Unit Per Unit Per Year 1 490290 490142 Chassis 1 2 490310 490144 Top cover 1 3 111928 Screw self tapping 4 4 4 490063 49
52. ly to unit LoH20 Water has failed to enter chamber from reservoir H20 Water level in chamber has dropped slightly door test Door closed and power on ERR2 Door opened after cycle started Door not fully closed at beginning of cycle Door switch faulty see door test Error Heater not working Temperature either excessively high or low Fault with microcomputer system Low temperature during sterilization The display ELECt will occur at any time after Switching on power and beginning a cycle if the power supply has been interrupted and then restored ST SM8l 2 24 Ifan error occurs during a cycle the controller will cancel the cycle see Fault Diagnosis and Errors and Error Clearing in Part 3 Note If the autoclave has a printer and if an error occurs duringa sterilization cycle the printer will printout the date and time the message Cycle Failed and the appropriate error code Q Err1 Clock Fault or Faulty temperature channel U Err2 Door open during cycle Err3 Chamber did not fill with water LoH2O QO Err4 Water loss early in cycle H20 U Err5 No heat U Err6 Control temperature low LC Err7 Control temperature high U Err8 Monitor temperature low CQ Err9 Monitor temperature high Operating information relating to the printer is given in Appendix A to this Manual Overheating 2 25 n the unlikely event of overheating the red overheat warning lamp on the front panel will illuminate
53. m as follows f Apply a smear of silicone grease MS4 to both sides of nylon washer 1 and position it on spindle of actuator lever 2 Apply alittle silicone grease on spindle of actuator lever 2 and slide the lever through the front panel Apply a smear of silicone grease to both sides of nylon washer 3 and position it on spindle of actuator lever 2 ST SM8l h Fitleaf spring 4 to microswitch actuator lever 5 with clamp screw 6 and washer 7 Fit striker screw 6A and nut 8 to microswitch actuator lever 5 Fit microswitch actuator lever 5 to actuator lever 2 ensuring thatthe mechanism is located between limit stops 10 Ensure leaf spring 4 is positioned and adjusted to keep microswitch actuator lever 5 clear of microswitch 9 While tightening clamp screw 6A using thread lock part number 306033 twist levers 2 and 5 apart to minimise any slack between the flats on the spindle and lever Set microswitch actuator lever assembly by closing the door and revolving the door knob to lock the door Using a 5BA spanner adjust striker screw 6 until the head of the screw just touches the body of the microswitch Then undo striker screw 6 a turn and tighten locking nut Open and close the door and check that microswitch 9 operates correctly Nylon washer Actuator lever Nylon washer Leaf spring Microswitch actuator lever Striker screw Clamp screw Washer Nut Microswitch
54. nd of the cycle via the discharge valve U Heating Element Fig 4 item 1 This consists of a single immersion element inside the chamber It is controlled via the solid state relay and heater thermostat Referto the Technical Data for heater element loading U Solid State Relay Fig 4 item 8 Non CE Units see note page 38 This is switched on and off by the controlleras necessary andisthe means ofcontrolling the heater output The solid state relay is fitted on the protection relay printed circuitboard whichis mounted on the internal bulkhead and is rated at 25A 400V repetitive reverse blocking voltage or such as to be suitable for use on a 230V a c supply U Solid State Relay Fig 4 item 8A CE ONLY see note page 38 On CE units the Solid state relay is fitted on the relay protection board U Mechanical Relay Fig 4 item 21 CE ONLY see note page 38 This relay isolates the heater circuit Page 7 of 43 Part 2 SES 2000 AUTOCLAVE ESCHMANY PART 2 DESCRIPTION from the electrical supply prior to cycle start and following cycle completion to give additional protection Heater Cycling Thermostat Fig 4 items 2 and 3 This is connected in series with the solid state relay to the heating element It is operated by a fluid filled capsule clamped to the heating element which will cause the thermostat cut out device to operate if the heater surface temperature exceeds a preset limit safeguarding the autocl
55. nge to ready or time and the four green indicators will come on 2 9 Afterthe worktrays have been putin the chamber and the door closed a programme can be selected and initiated by pressing one of the programme selector buttons Ifthe autoclave has a printer it will automatically start when the programme selector button is pressed 2 10 When the door is closed with power switched on this is sensed by the controller via the door interlock switch If any attempt is made to open the door once the cycle has begun the display ERR2 will appear and an audible signal will sound Under these circumstances itis necessary to switch the autoclave off and clear the error as detailed in section 3 41 2 11 On selecting the programme FiLL will be displayed indicating that the cycle has begun Once the chamber has filled with water from the reservoir the display will change to HEAT 2 12 Ifall conditions are satisfactory the controller will set up the operating parameters for the cycle selected and will switch on the heater ST SM8l 2 13 The heater is controlled by a system which ensures that the operating temperature is reached with minimal overshoot Initially the heater will be on continuously and the measured temperature will be displayed Note however that the system does not register temperatures below 92 C hence the symbol HEA will appear and remain on display until a temperature of 92 C is reached 2 14 Temp
56. noid doorlock 1 30 427060 CE ONLY Locking bolt 1 31 380072 CE ONLY Ferrite clamp 3 1 mains loom 32 380073 CE Printer version ONLY 1 1 Printer ribbon 33 490342 CE ONLY E M I Shield 1 Not illustrated See note below For other countries consult manufacturer IMPORTANT NOTE From late 2008 all non CE units are built as CE units i e all units will be built to the CE format Comments qualified by non CE units only no longer apply and CE only will apply to all units Page 38 of 43 ST SM8l OESCHMANN SES 2000 AUTOCLAVE Appendix A APPENDIX A OPERATING INSTRUCTIONS FOR PRINTER Printer Output The printer output gives the following information Manufacturer s name Eschmann Equipment Machine type SES 2000 Serial number Nine character code Cycle type e g 134 C no drying Time and date started At hh mm ss On dd mm yy Counter reading Five digits with leading zeros Time temp information Time every 22 secs approx temp graph of temperature Cycle ended message Time and date ended The cycle end is defined as the end of the sterilizing phase If an error occurs during the cycle itis recorded with date and time on the printout and the message CYCLE FAILED Errors are designated by error codes as follows ERR1 Faulty temperature sensor channel detected ERR2 Door open during cycle ERR3 Chamber did not fill with water LOH2O ERR4 Wat
57. o The CE marking affixed to the product certifies that it complies with the 0473 European Medical Devices Directive 93 42 EEC and related legislation ST SM8l November 2008 0473 ESCHMANN Contents Technical data PART 1 INTRODUCTION General Associated publication Servicing 7 PART 2 DESCRIPTION General Operating features Operation cycle Operation Display messages Error indication General Overheating PART 3 MAINTENANCE Fuses Fault diagnosis and table Parts replacement and adjustment Removing cover m o ud Refitting cover Thermal fuse Transformer Controller board Pressure door lock Air valve Door interlock switch Solenoid door lock CE only Heater cycling thermostat Temperature sensors Fill and Discharge valves Solid state relay Non CE Solid state relay CE only Mechanical relay CE only Heating element Printer interface board Voltage regulators Door seal Pressure gauge Discharge line filter Printer Special operating modes Demonstration mode Engineering mode Set up mode Switch identities and function Power on modes ST SM8l SES 2000 AUTOCLAVE CONTENTS Page Page 3 Set up procedure 26 4 Autoclave without printer 26 Autoclave with printer 26 Setting the Autoclave Serial Number 26 Entering the Autoclave Serial Number 27 6 Entering the date and time 27 6 Errors and error clearing 28 6 General 28 Control sensor selection 2
58. order Part No 380010 directly from Eschmann When fitting the new tap drain the reservoir first and ensure it is placed on the drain tube correctly see Fig 3 Fig 1 SES 2000 Autoclave ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 2 PART 2 DESCRIPTION GENERAL Fig 2 2 1 The autoclave is a portable steam unit heated by a single element and can be supplied to suit any of the mains supplies shown in Technical Data 2 2 The unit is electronically controlled and offers a selection of sterilizing programmes as follows Q 134 C without the drying phase U 121 C without the drying phase Q 134 C with the drying phase U 121 C with the drying phase For sterilizing pressures and drying times refer to Technical Data 2 3 The required sterilizing programme is selected and started by pressing the appropriate programme button on the front panel of the unit following which the sterilizing drying cycle proceeds automatically until complete If the autoclave has a printer the printer will start automatically when the programme button is pressed 2 4 Indication of cycle status is provided by a digital display If an error should occur during a cycle this also is indicated by the digital display OPERATING FEATURES Figs 2 3 and 4 2 5 The following equipment designed for control and or protection is incorporated in the autoclave U Pressure Gauge Fig 3 item 3 This is used to indicate pressure inside chamber
59. owing details Manufacturers name Autoclave type and serial number Sterilization cycle type e g 134 C without drying Date and time for the start of sterilization cycle Counter indication five digits with leading zeros Sterilization cycle time and temperature information Sterilization cycle ended message Time and date for the end of the sterilization cycle DDCCOOU6UL U m m Operating information relating to the printer is given in Appendix A to this Manual Page 9 of 43 Part 2 SES 2000 AUTOCLAVE ESCHMANY PART 2 DESCRIPTION 2 19 The overall time for the cycle is not fixed and depends on many factors such as the supply voltage the load and the ambient temperature However the controller will ensure a satisfactory sterilization cycle even when these factors vary over wide ranges 2 20 If a cycle employing a drying phase is selected operation to the end of the sterilizing phase is as described above After discharge of steam and water back into the reservoir however the display dry appears accompanied by a rapid intermittent audible signaloveratwo second periodto indicatethe beginning of the drying phase At this point the operator should first open the chamber door then push it towards the closed position again until it just rests lightly against the door safety catch This leaves a sufficient gap to allow vapour to escape 2 21 The drying phase is about 17 minutes long during which the heater i
60. r this has happened switch off and seal the adjustment positions of potentiometers R17 and R14 on the controller board e g with nail varnish Note 1 Issue 7 of pcb top left hand corner Turn R1 instead of R17 counter clockwise to increase temperature andturn R2 instead of RI4 clockwise to increase temperature Issue 8 March 1991 Revert to original instructions Note 2 Running calibration cycles will not advance the cyclecounter Some ofthe error detection systems are automatically switched off during the calibration phase A label should be fixed to the autoclave indicating the date on which it was calibrated the technician responsible and the date when it should next be calibrated The recorder charts should be kept The temperature sensing systems used in the autoclave have been shown to be reliable and relatively drift free overlong periods Nevertheless itis recommended that the calibration be checked at least every 12 months or more often if the sterilizer is heavily used Page 29 of 43 Part 3 SES 2000 AUTOCLAVE ESCHMANN PART 3 MAINTENANCE Safety Valve Fig 3 item 5 and Fig 7 3 49 Test the safety valve as follows CAUTION Ensure reservoir access cover is fitted Fig 2 item 16 Note To cancel the safety valve test switch off the on off switch for 4 seconds then switch it on again This will vent all pressure and water to the reservoir a Refer to Routine Calibration Procedure and
61. s operated at low power Operation of the heater thermostat is quite normal during this period At the end of the drying phase the display End will appear for approximately 10 seconds followed by ready assuming that the door has been opened as described in section 2 20 Page 10 of 43 DISPLAY MESSAGES 2 22 Throughout a given cycle the following symbols may appear as a digital display Display Meaning ERR 2 Door opened after cycle has been started door test Test door interlock switch see section 2 23 door then Chamber door open and a cycle cycle counter button has been pressed audible then ready beep given Time of day Programme can now be selected or rEAdY printer version shows Time non printer version shows rEAdY FiLL Chamber being filled HEAt Chamber temperature below 92 C 92 136 Heating to sterilizing stage S 135 5 S flashing indicates sterilizing begun and timing started cond Steam being discharged and condensed dry Load being dried End Cycle complete cycle counter Pressing the bottom 121 C button after a cycle has started will display the cycle counter f programme with drying is selected ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 2 PART 2 DESCRIPTION ERROR INDICATION General 2 23 If an error should occur during a cycle one of the following error code symbols will be displayed Display Cause ELECt Temporary failure of mains power supp
62. seating of the temperature sensor It should be in good thermal contact with the flat bottom of the well formed in the outlet manifold atthe rear of the chamber A small amount of zinc oxide based heat transfer compound should be smeared on the surface of the sensor If ithas been necessary to make readjustments to the temperature sensor switch off power then re start the calibration cycle as described in para b ST SM8l Note 2 The next adjustment will have to be completed within approximately three minutes before two bleeps are heard indicating completion of the 134 C cycle At this point temperature will fall to 122 5 C Note however thatitis possible to repeat the 134 C cycle at any time by pressing the 134 C without drying programme button again Push the 134 C button on the front panel After a short time an audible signal should be heard Release the button The sterilizer will now perform a 134 C cycle from the baseline of 122 5 C Once the sterilizing temperature has been reached and the chart recorder trace has levelled off adjust R14 on the controller board clockwise to decrease carefully until the recorder trace indicates between 134 C and 138 C Repeat c and d to ensure consistent calibration is achieved Once calibration is complete switch off the unit waitfor 10 seconds then switchiton The discharge valve will now open and exhaust steam and condensate back into the reservoir Afte
63. sed on the 24 hour clock The minutes in00 3 39 Enter the time and date as follows a Check that the display shows on01 and U Enter the month 01 January to 12 December by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry Check that the display shows dy01 and U Enterthe day 01 the first to 31 thirty first by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry Check that the display shows yr00 and Q Enter the year 00 1990 to 99 1999 by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry Check that the display shows hr00 and Q Enterthe hour 00 00 00hr to 24 24 00hr by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry Check that the display shows inOO and U Enter the minute 01 the first minute to 59 the fifty ninth minute by pressing switch 1 to increase the number or switch 2 to decrease the number Q When the number is correct press switch 3 to accept the entry The time and date are now set and several bleeps will sound indicating that the set up procedure is comp
64. service the autoclave it is a replaceable sub assembly and should only be changed as a last resort ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 2 PART 2 DESCRIPTION Q Integral Printer Fig 2 item 22 If the autoclave has a printer it will start automatically when the programme button is pressed and will print out a hard copy of the sterilization cycle Details of the printer are given in Appendix A to this Manual OPERATION CYCLE 2 6 A detailed knowledge of the operation of the autoclave is not necessary to be able to repair it effectively however a basic understanding of the various processes of the unit operation which occur during a cycle is given in the following paragraphs Operation CAUTION Ensure that the reservoir is filled with water before switching on Note When filling the reservoir water treated by reverse osmosis can be used as an alternative to distilled or deionized water 2 7 Power to the unit is switched on by selecting the power switch 0 1 to I Ifthe chamber door is open there now follows a single high pitched audible signal accompanied by the display SES followed by the number of cycles and finally ready or time of day if printer fitted in the display window 2 8 If the door is closed when power is switched on the display will alternate between test and door In orderto continue with the cycle the door must be opened at which point the display will cha
65. stats sensor and clip c Unscrew and remove large nut from heater mounting boss at rear of chamber d Extract heating element via chamber mouth e Fit replacement heating element by reversing order of removal procedure Note Ensure heating element is horizontal when fitted Also ensure that a new sealing washer is used and that the nut is fully tightened to avoid leaks Printer Interface Board Fig 4 item 20 3 19 Remove the printer interface board as follows a Disconnect all electrical connections noting their position and orientation for correct reconnection b Disconnectthe voltage regulator from the partition wall ST SM8l c Remove two screws securing the interface board to the partition wall and remove printer interface board complete with voltage regulator unit d Refitprinterinterface board complete with rectifier unit using the reverse removal procedure but note that U The voltage regulator partition wall contact surface must be smeared with zinc oxide heat transfer compound and the securing screw is firmly tightened Note If a new printer interface board is fitted it must be set up as described in section 3 30 Voltage Regulators Fig 8 3 20 The voltage regulators form part of the controller board and the printer interface board and must be mounted so that they make good thermal contact with the steel partition The leads to the voltage regulator are easily broken and if one should snap off at
66. switch it on again Engineering Mode CAUTION Inbuilt protection by the controller is not operational in Engineering Mode 3 27 To enter the Engineering Mode proceed as follows a Switch off power b Push and hold the 134 C and 121 C with drying programme buttons the bottom two buttons and switch on power c Release programme buttons when messages start to appear The messages in order are 8 8 8 8 8 with a continuous audible signal and all programme selection LED s illuminated followed by count then the accumulative number of completed cycles then the error code see section 3 40 for the last error stored in memory and finally Engin Note In the engineering mode the display will read Engin unless the heater is on in which case the normal temperature display will show 3 28 Inthe Engineering Mode the programme selector buttons and programme indicator LED s function as follows a Button 134 C without drying Press to check chamber discharge valve function If the valve is working the valve solenoid will be heard to click b Button 121 C without drying Press to check water fill valve function By opening chamber door the water can be seen to flow into the chamber Note Only one of the valves can be energised at a time ST SM8l OESCHMANN SES 2000 AUTOCLAVE Part 3 PART 3 MAINTENANCE C CEONLY see note page 38 Button 134 C with drying Press to check the sol
67. tch to off O b Press and hold switch 5 and switch mains on off switch to on I Continue holding switch 5 until Set Up is displayed and then release it After a short time LS3 will be displayed Press switch 2 to reject LS3 and check that the display changes to SES e Pressswitch 1 andcheck thatthe display changes to Print f Press switch 1 and check thatthe display changes to CyC 0 cycle counter g Pressswitch2andcheckthatthe display changes to Eng English h If English is the required language press switch 1 to accept the Eng code If English is not the required language press switch 2 until the required language code is displayed as follows O Fre French QO Ger German O ta Italian U Spa Spanish U Por Portuguese i Press switch 1 to accept the required language code Display changes to CE press switch 1 for CE units press switch 2 for non CE units see Note page 38 j Several bleeps will now sound indicating that the set up procedure is complete Autoclave with Printer Fig 2 and 7 3 35 To set up an autoclave with a printer proceed as follows a Switch mains power on off switch to off O b Press and hold switch 5 and switch mains on off switch to on I Continue holding switch 5 until Set Up is displayed and then release it After a short time LS3 will be displayed Press switch 2 to rej
68. the roll Remove any damaged or gummed part of the paper f Compress paper roll spring loaded retainer button 6 and locate new paper roll on spindle with paper unreeling counter clockwise as seen from open end of spindle Fig A1 g Using scissors trim end of paper roll at an angle of approximately 30 Fig A4 and insert this end of the paper into the paper insert slot 1 Press paper feed actuator arm 7 until mechanism grips paper and pulls it through to front of printer door h Turnpaperroll by handtotake up any slack paper i Close the printer door Check paper feed by pressing paper feed button 3 until the end of the trimmed paperis clearofthe tear bar Ensure that the paper feeds freely from the printer Ribbon Cartridge Renewal Fig A3 and A4 Renew ribbon cartridge as follows a Remove paper roll b Support door with left hand and press upwards with right hand on bottom of printer mechanism chassis Fig A2 2 and separate chassis from door CAUTION Do not pull printer mechanism chassis from door until catch has been released c Leaving printer door fully open expose printer mechanism and ribbon cartridge Fig A4 1 d Pinchtheendofribboncartridge marked PUSH Fig A4 1 and remove cartridge e Install newcartridge checking that left hand side of cartridge is correctly located on drive shaft and CAREFULLY press cartridge into place f Ensure ribbon is taut If necessary tighten rib
69. ts with silicone i e not copper pipes see page 31 Illustration of tap now supplied 0 U Fig 9 Part No Description Qty Per Recommended Holding Item No Standard Long Unit Per Unit Per Year Pressure chamber assy 1 1 490090 490117 Chamber 1 Notavailable for purchase 2 490191 Waterfill pipe assy 1 3 490268 Manifold assy including 1 380082 T piece 1 380020 M Plug 1 391132 Ya Washer 1 490258 Manifold 1 301349 Test plug no longer fitted 1 301739 Safety valve 1 1 301625 Coupling 1 425176 Air valve see below for 110Volt 1 110064 Air valve 110Volt models only 1 4 490173 Valve solenoid water fill assy 1 1 5 490048 Valve solenoid discharge assy 1 1 6 490195 Filter assy 1 1 6A 380036 Washer copper 1 1 7 427035 Pressure lock assy 1 8 427060 Bolt locking 1 9 490010 Pressure gauge 1 10 380010 Tap 1 1 11 490157 Coil 1 Not illustrated see Chamber changes notes on page 33 was 490252 pre SN SED311798 for Standard and 490220 pre SN LSEB310045 for Long Page 32 of 43 ST SM8l ESCHMANN SES 2000 AUTOCLAVE Part 4 Chamber changes on current models To ensure easy access into the chamber to meet the requirements of PSSR2000 the following parts have been fitted This enables temperature and pressure measurement at this point Standard Chamber The Chamber part number 490040 has been fitted with the fo

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