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MXN276 Swiftlock Autoclave Programmable Control

1. If left in this state without any actual entry after a period of time the system will automatically go back to running MXN276 3b doc iss01 ed a START DELAY DELAYED START If selected in Configuration this allows a delayed start of the selected program to permit it to automatically start up after a set time for example This allows a cycle to automatically start itself and complete in time for the Laboratory to open in the morning The actual Cycle Start Time may be delayed by a selectable time up to 18 hours after the Start Button is pressed Press START Key Start Delay 9 Start delay Hrs Down Enter Up Press Up Down to set Press ENTER to Start Delay in Hours Initiate cycle Start There is a 10 second period for you to begin setting a delay time If no time is set the cycle will start immediately DURING DELAYED START COUNTDOWN Start Delay Time To 01 46 IE 358224 2 line shows time to go Cycle will start in 1 hr 46 minutes 4 line shows current time TO ABORT A DELAYED START Press STOP button Delayed start countdown will stop and system goes to Ready Page 16 PROGRAM CYCLES DETAILS amp DISPLAYS The CLASSIC models covered by this manual are programmable and the details of the cycles can be changed the program profiles are set from the SUPERVISOR LEVEL and not accessible for change by the user For Each Cycle The Sterilize Time Temperature Airpurge Time Sterilize p
2. There are two security pin NUMBERS for normal use and a specialist number for exceptional use by a calibrating engineer in the event of factory recalibration requirement USER ENGINEER ADVANCED The USER PIN number is adjustable to user choice This is done in the USER CONFIGURATION section USER PIN Initial Factory set to 157 The initial PIN NO remains as factory set unless changed by the operator in Supervisor Level New Setting You may choose to Record any new setting The ENGINEER pin no is fixed It is made available to approved authorised service engineers and agents and to End Users on request ACCESS TO SUPERVISOR LEVEL The Chamber must be Closed and Locked This will normally be in REAFDY stage Press the KEY button when prompted Enter the USER PIN number The display starts off at 197 use the keys to change to the User PIN no Access Code 197 ENTER Press Down decrease value to Press Up to increase value Press Enter to select that value This gives access to the Supervisor options No to Skip to next Page 25 Supervisor Level Enter Program a Yes YES to Enter Programs section SUPERVISOR OPTIONS 25 ENTRY AND EDITING PROGRAMS See page xxxx Fault Report Supervisor Level Fault Report No v a Yes Press No to move on WATER QUALITY Press Yes
3. Warning Incorrect configuration may cause damage to the control system Do not alter configuration settings without a full understanding of the implications and effects of the changes If in doubt consult ASTELL or your local agents TEST ENGINEERING MODE The functions in this mode are intended for service engineer use INPUTS State CPLUSOTG 11000100 CEnter to close Press ENTER Key to move to next stage The display shows state of interlock switches and sensors The Top line shows 1 for ON state 0 for OFF state corresponding to the letters on the second row Open microswitch contact on Door Shut microswitch contact on door Unlocked microswitch contact on lock mechanism Locked microswitch contact on lock mechanism Preset Cool Lock Thermostat Pressure Switch future use T Tank Floatswitch u locked k II 1 low Temp 1 low Pressure Note that some sensor output states are interdependent due to the DOUBLE LEVEL interlock system which provides a chain of independent interlocks that do not involve the Microprocessor system FORCE OUTPUTS This is for testing the output actuators valves etc It allows the output relays to be forced to ON or OFF for Example this is the BOLT relay 40 Page 40 RELAYS rec OFF ON OFF w Enter a 0N Use the Up Down Use the ENTER buttons to turn buttons to step the on to the next auitniit
4. Warning sounds and Key beeps are maintai ed End of ENGINEER SETUP SECTION FAULT DETECTION SYSTEM F StartDelay The Start Delay allows a delay time to be entered each time the cycle is started from 1 18 hours For Example this allows a load to be placed in the chamber in the afternoon which will start automatically before start of work next day If set To ON Start delay is active on all programs whenever the START Key is pressed 31 TEMPERATURE DROPBACK If the heat source fails during the course of the STERILIZE period then the chamber temperature will drop When the Temperature falls more than a set value typ 2 0 C below the SETPOINT MXN276 3b doc iss01 ed a temperature the Sterilize Timer is reset and the system idles until the temperature recovers at which point the timer restarts This is intended to prevent Completion with Unsterilized loads in the event of Steam failure or Electrical Partial Supply Failure Chamber 89 6 C Pressure 0 02 Bar Heat Dropback Machine function amp Display reverts to normal when fault ceases temperature rises again and conditions are restored The threshold Calibration level is adjustable amp set in Please also See Load Sensed Timing INTERLOCK FAILURE The safe function of the Sterilizer is governed by a series of electrical and mechanical interlocks which are continually monitored and checked for correct operation by the microcomputer controll
5. between pressing the OPEN Key and the bolt release which allows the door to be opened Press the OPEN Key the display will show the xx SECONDS will count to 30 when the LOCKING BOLT withdraws for 10 Seconds DOOR UN LOCKED OPEN DOOR NOW 10 SECONDS XX SEC DURING THE 10 SECONDS ROTATE the DOOR HANDLE The sounder may beep The xx SECONDS will count up ROTATE THE HANDLE SWING OPEN THE COVER DOOR If the door is not opened within the 10 Seconds the bolt re engages and the OPEN Key must be pressed again Note Never lean on the handle or hang anything over the handle as this will cause the bolt to stick and will cause early failure of the mechanism 11 Page 11 HANDLE LOCKED WITH DOOR OPEN If the handle is rotated to the LOCKED position with the door open then the lock will engage so the door cannot be closed until the locked handle has been released LOAD CHAMBER CLOSE DOOR Press OPEN The bolt will retract for some seconds Return the handle to the unlocked position DOOR OPEN AUTOZERO PRESSURE When the door is open the system periodically re sets the Zero Point on the Pressure Measurement System This message will show briefly It does not affect the normal operation of the machine Please Wait Zeroing pressure MXN276 3b doc iss01 ed a SELECTING A PROGRAM The system must be in the READY display mode with the Cover closed amp locked The sy
6. stage the Chamber temperature is artificially boosted 5 C above the set sterilizing temperature The load sensor monitors the load as the temperature approaches the set Sterilizing Temperature 5 C below the boosted chamber temperature at this point Since load heat up rate depends upon the difference between load and chamber temperatures this increases the rate of 34 Page 34 heatup of the load by a significant and useful factor When the load reaches 1 5C below the set Sterilizing temperature the boost in chamber temperature is reduced to 2C When the load temperature equals the set Sterilizing temperature the boosted chamber temperature is reduced to just 0 3C above the set Sterilizing temperature Because of the increased temperature differential between load and chamber the load heats up much faster over the last few degrees If the Boost was left at a high level the Load temperature would significantly overshoot the desired temperature By gradually reducing the boost as the load gets nearer to the desired temperature it does not appreciably overshoot the desired setting Also since it is in the nature of the thermodynamics of the design that during the Sterilize Stage heat transfer into the load causes the chamber to be typically 0 5C above the average load temperature the sterilize Temperature is subjected to a 0 5C boost during the Sterilize Period which helps to offset this difference Load Heatin
7. 19 Page 19 stage is different Chamber 99 6 C Pressure 0 02Bar PulseFS 09 54 The shown here is replaced by a denoting state of the exhaust valve symbol This is either J BOX symbol This means the Valve is closed or Three short lines symbol This means the valve is open The valve cycles on and off throughout the Airpurge period to achieve the PULSED FREESTEAM operation Explanation Of Pulsed Freesteam PULSAR FREESTEAMING is the Astell name for this patented system With this arrangement the controller turns the VENT STEAM EXHAUST VALVE on and off in a programmed manner to permit steam to escape in bursts building up pressure slowly during the closed period and releasing this to atmosphere during the open period This causes the Boundary layer to move up and down within the container and the pressure reduction during the open period is fast enough to cause great turbulence within the chamber breaking up the boundary layer and drastically increasing the rate of diffusion of steam into the container and load The Open Closed Cycle is factory set to Typically 1 min open 1 min closed MXN276 3b doc iss01 ed a Steam Output Quench Cooling This is an optional extra This system requires a supply of Cold mains water see installation manual for requirements which are the same as for AutoFill The Cold water is injected into the output exhaust pipe during the Steaming stag
8. Freestanding Chart Recorders and the Astell AutoScribe Datalogger are available matched to the control system to provide independent evidence of sterilizer performance These are controlled to run automatically within each cycle Instructions for Datalogger amp Recorders themselves are covered in additional ASTELL Manuals and Original Manufacturers Manuals supplied with the equipment MACHINE SPECIFICATION AND CONTROL OPTIONS The Control System Display MAY show various items of information when the Mains Power is turned on for example SWIFTCLAVE CLASSIC AUTOCLAVE denotes Sterilizer Type SINGLE OR MULTI PROGRAM shows no of programs etc TIME and DATE of the on board clock are shown Please keep a note of these displays You may be asked to quote these to assist the Astell service dept if requesting service attention A unique SERIAL NUMBER is provided which will enable identification of your machine for service and maintenance purposes This is marked on the ELECTRICAL RATING PLATE at the rear of the case DOCUMENT ISSUES AND DETAILS Date amp Issue Edition amp Details of changes and revisions inc software issues MR no Details filename and manuals 160605 NEW ISSUE 270407 03 b Minortext corrections MXN276 3b doc iss01 ed a Page 3 ABOUT THIS MANUAL This instruction manual is intended for use by OPERATORS SUPERVISORS and STERILIZING ENGINEERS or their equivalents
9. Ti t Le Loadsensed Time Press the Up or Down buttons and the flashing NO line moves up or down the screen to select the different programs Enter gt A When the line hits the bottom the lines move up to make room and similarly at the top the lines a lt ENTER lt lt move down Press to move back and Press a to Press ENTER to Select the PROGRAM which re enter this move back you wish to change or display the set cycle value one step to the previous entry parameters These key entries allow the correction of mistakes by stepping back and amending your Choose Program Type K ae as required oy Press the desired Program Select Button a ENTER Program Type followed by Glass Solids a lt ENTER lt lt This Entry sequence is continued for each of No w Enter Yes the other parameters MEDIA HOLDWARM See explanation on Media Holdwarm Press Enter to select that type Press or to lt scroll thro types Program partite Each program can be associated with any of the Media holdwarm available program types eg NO Liquid loadA Liquid load No w Enter Yes Glass Solids Waste Destruct Media Wari a Pulsar Freestream Note this is Only present if PULSAR FREESTEAM pat option is fitted and has been turned on in configuration 28 MXN276 3b doc iss01 ed a Program 2 Title Pulse Freestream NO No w Enter Yes Other Options Where other special
10. function as part of a decontamination process Whilst it is possible to process unwrapped simple and light fabric loads they will come out saturated with water and sterility will be compromised since there is no Drying function Such items must always be loaded loosely and not folded or wrapped to allow easy steam penetration to all sides but even so sterilization may not be perfect Use the same cycle settings as for a Makesafe Discard load as described above with maximum AirPurge time MXN276 3b doc iss01 ed a SETTING UP AND COMMISSIONING This Machine comes with the programs pre configured and parameters set to typical program profiles to suit appropriate loads The Sterilize Temperature and Time are adjustable from the front panel by access to the SUPERVISOR level It is not suggested that you use these programs as they are It will almost certainly be necessary t adjust one or more of the parameters to suit the laboratory preferences and requirements As a minimum the PROGRAM TITLES should be set up to represent names that can be remembered in the lab Typical Factory Settings as Delivered saind JYVMSSV19 LONYLSad STERILIZE 121 TEMPERATURE STERILIZE TIME AIRPURGE TIME COOL LOCK TEMP een N ox k wo 30 w o o UV gt av gt m m A AIRPURGE shown below Note that the MINIMUM airpurge time is typically 7 minutes and is preset in calibration to ensu
11. must BOTH be below the two separately set cool lock temperatures to allow the cycle to complete OVERTEMPERATURE THERMOSTAT All electrically heated models The Overtemperature Cutout uses an overtemperature thermostat thermally linked to the Chamber and shuts down the control system power in the event of overtemperature operation which limits heater temperature rise if the system should fail When triggered Power is cut off to the control system The power will be restored only when the temperature falls and the controller will behave as if the power had just been turned on OVERPRESSURE CUTOUT option The OverPressure Cutout is Precision Pressure Switch which is sited inside the machine and is preset to below the safety valve setting It is designed to prevent the chamber exceeding the rated pressure The power will be restored only when the temperature falls and the controller will behave as if the power had just been turned on OVERTEMPERATURE CUTOUT Manual reset with alarm option The Overtemperature Cutout Manual reset with alarm is Precision temperature Switch which is sited inside the machine and is preset to below the safe operating temperature for the boiler design it is fitted with an audible alarm It is designed to prevent the chamber exceeding the rated temperature An overtemperature thermostat is thermally linked to the Chamber and shuts down the control system power in the event of
12. nn nff ni ini if RELAY OUTPUT LIST Recorder Power Switching amp Datalogger Remote control volt free relay Heater Contactor Valve Contactor on 3Phase Sol Valve on Steam Heat Supply Steam generator heater Or HTM10 pumpout Cool Fan or Water Cool valve or Pump Vent Solenoid valve Exhaust Vent valve gaan Locking Bolt Solenoid MXN276 3b doc iss01 ed a WATER LEVELS WET DRY Chamber Water Level Sensors WATER LEVELS Hi Level Wet Lo Level Wet CENTER to Exit Press EXIT to move on Test Engineering a Yes The Test Engineering routines may be repeated as many times as necessary The Next display is CALIBRATION Page 41 CALIBRATION Advanced No v a Yes WARNING Unless you are to calibrate the advanced features which is normally factory only press NO CALIBRATION 123 4 TS 56 ENTER Here TS is the Temperature Span Parameter 123 4 is the measured value of the sensor being Calibrated Note ZERO means Range Zero not a value of 0 In the example above 56 is the OFFSET with a ve or ve value This Offset value is used for record purposes and is the correction value used by the control computer It is the equivalent to the graduations on a calibrated dial and allows the reproduction of calibration settings 37 points are additional calibration points See Below Press YES to enter Calibration Mode You will be asked to confirm your choice t
13. overtemperature operation which limits heater temperature rise if the system should fail The power will be restored only when the temperature falls and the controller will behave as if the power had just been turned on Page 7 Warning Overpressure Overtemperature cutouts The Manufacturers of this Sterilizer accept no responsibility for damage to the load which may result in this Sterilizer in the event of a overheating overpressure fault occurring for any reason MXN276 3b doc iss01 ed a CLOSURE SYSTEM INTERLOCKS The cover is prevented from being opened by a solenoid locking bolt pin This Locking Bolt pin engagement and Cover Position are sensed by high reliability Micro switches The system cannot be started unless the closure is fully secured and locked On TOPLOAD models The Closure interlock system senses the up down positions of the door and the position of 2 of the sliding bolts that hold the cover shut The system also senses precisely the engaged position of the solenoid locking pin that prevents the handle being moved On FRONTLOAD models The Closure interlock system senses the position of the door to detec an Open closed state and and two microswitches precisely measure the engaged position of the solenoid locking pin that both detect the presence of the locking block and prevents the handle being moved The Cover can not be opened if A Chamber Temperature is above Programmed amp Preset Co
14. set to provide safe conditions for unloading the chamber Setting is the responsibility of the person with Supervisor access Do not leave the settings as delivered by the factory To allow for control over cool lock operation the Programmable Cooling Lock temperature can be set to say 99C for these loads but the Cooling Lock thermostst will override the settings A compromise can be reached with the PROGRAMMABLE cool lock stat set to say 95C and the PROGRAMMABLE cool lock value set to release at the desired temperature During cooling inside the chamber the load cools slower than the chamber temperature and gives up heat to the chamber walls This means that the chamber will reach 80C before the load so unless load sensed timing is fitted on the cooling lock setting will need to be BELOW the temperature 24 Page 24 It is possible to set up the cooling locks in a simple way as shown below but they are ideally set using a thermocouple tc and digital thermometer with the t c sealed inside the chamber immersed in the liquid load This is quicker and more accurate but is normally carried out by a service or commissioning engineer requiring use of a Thermocouple entry adaptor and details are in the Service Manual To set the Cooling lock without a thermocouple a laboratory liquids thermometer reading to 100C is required Load the chamber with the desired load and make a first approximation of cooling lock temper
15. the cycle timing cannot be closer to the chamber setpoint set for the process than approx 2 0 C for reliable operation The PROFILED OVERSHOOT avoids this by dynamically changing the setpoint temperature automatically in a series of profiled stages to match the temperature of the load heating up This achieves a threshold temperature exactly the same as the Sterilizing temperature and a further function compensates for the small temperature offset between load and chamber during Sterilizing experienced in normal use This system is integral with and dependent upon the use of the Load Sensing system The LOAD SENSING PROBE detects the temperature within the LOAD If correctly positioned and ensures that the load experiences the set conditions for the set time without any need for compromises or extended times to allow the load to catch up The LOAD SENSED TIMING option also automatically implements LOAD SENSED COOLING LOCK for that program IT IS MOST IMPORTANT THAT IF LOAD SENSING IS SELECTED IN THE PROGRAM THE LOAD SENSING PROBE IS ALWAYS PLACED IN THE LOAD OR CORRECT STERILIZING WILL NOT TAKE PLACE MXN276 3b doc iss01 ed a COOLING Cooling action operates whenever appropriate in the program and only for program types that do not permit DRYING eg Fluids cycles At the end of Sterilize for Liquid Fluid programs initially convection ambient cooling cools the chamber to a preset pressure threshold When this te
16. unsafe conditions There are two cooling lock systems They remain electrically LOCKED until the load has cooled to a safe handling temperature COOLING LOCKS operate for FLUIDS and DESTRUCT programs PRESET Cooling Lock This is a 0 100 Deg C thermostat with Knob Dial and Scale Temperature sensor is mounted clamped to the outside of the chamber It indicates an approximation to the load temperature PROGRAMMABLE Cooling Lock This is an electronic system set to a suitable temperature entered within the Page 6 Program Profile It measures and reacts to the temperature of the Inside of the chamber in the same way as the normal temperature display If LOAD SENSED TIMING option is fitted this system senses the Load Temperature of the Load Sensing Probe in place of chamber temperature WARNING THE COOLING LOCKS CAN PRESENT A HAZARD IF INCORRECTLY SET They should be adjusted by the supervisor or a person trained in Sterilizer use amp the setting of safe sterilizer cycles PRESET COOLING LOCK THERMOSTAT This is a thermostat with Dial amp scale calibrated in Deg 0 100C behind the cabinet side cover panel or at the rear It measures temperature of the Chamber outer Wall providing sufficient thermal mass for a reasonable match between the Load Temperature and the Cooling Lock Sensed temperature although the temperatures will not be quite the same due to differing thermal inertia Normally the Chamber w
17. 117 14 114 80 119 48 0 85 117 96 115 60 120 32 0 90 118 80 116 42 121 18 0 95 119 63 117 24 122 02 1 00 120 42 118 01 122 83 1 037 121 00 118 58 123 42 1 05 121 21 118 79 123 63 1 10 121 96 119 52 124 40 1 15 122 73 120 28 125 18 1 25 124 18 121 70 126 66 1 30 124 90 122 40 127 40 1 35 125 59 123 08 128 10 1 40 126 28 123 75 128 81 1 45 126 96 124 42 129 50 1 50 127 62 125 07 130 17 1 55 128 26 125 69 130 83 1 60 128 89 126 31 131 47 1 65 129 51 126 92 132 10 1 70 130 13 127 53 132 73 1 75 130 75 128 14 133 37 1 77 131 00 128 38 133 62 1 80 131 37 128 74 134 00 1 85 131 96 129 32 134 60 1 90 132 54 129 90 135 19 1 95 133 13 130 47 135 79 2 00 133 69 131 02 136 36 2 05 134 25 131 57 136 94 2 10 134 82 132 12 137 52 2 15 135 36 132 65 138 07 2 20 135 88 133 16 138 60 2 25 136 43 133 70 139 16 Note This chart is for checking pressure Temperature Steam Correlation only amp is appropriate for Press Temp instruments specified as individually accurate to 1 It should not be used as a calibration standard for Pressure or Temperature indicators which must be calibrated in accordance with the Manufacturer s Specifications 49 MXN276 3b doc iss01 ed a Page 50 SPARE PARTS AND SERVICE When ordering spare Parts or requesting Service Assistance please have ready the SERIAL NUMBER to be found on the RATING PLATE at the rear of the machine Use only approved ASTELL SCIENTIFIC spare parts available from the ASTELL service dep
18. 21C but will work with a temperature set below 100C but suitable to melt the media The actual process does involve the chamber reaching 100C for a short period but this is essential to ensure the steam purges the air from the chamber then the temperature drops to the set process temp Since the load thermal inertia will cause the load to heat slowly it will not itself reach 100C The program sequence is 1 start normally 2 Heat Chamber to approx 95 99C Stay at that temp for AIRPURGE period as set in program 3 Reduce CHAMBER temp to typ 80 95C MELTING TEMP as set in program 4 control at the Set Temperature for the duration set on the Sterilize Timer for the program 5 the chamber does not go above 100C which would be a normal sterilize temperature 6 The program will perform the timed period and enter cooling just as with another program type there will not be a Chamber Venting blowout action since the chamber is not pressurised 7Completion etc are as normal and obey the cooling lock system as before STERILIZE SETTING WITH LOADSENSE TIMING OPTION FITTED The Load Sensed Timing system detects the Load temperature and automatically allows for the time lag caused by the load delay in reaching sterilize temperature Set up the system as described above for the system Without Load Sensing but with the following detail changes a Set the STERILIZE TIME to the Actual DESIRED STERILIZE TIME The Chamber
19. 80Deg C Cooling Lock FLUID MEDIA CYCLE 123deg C for 15 Minutes 10 Minutes AirPurgeing 80Deg C Cooling Lock Select and Start the cycle Throughout the cycle the display shows Temperatures Times and other cycle stage information The stages are as follows HEATING TO STEAM When approx 100 C is attained the AirPurge Chamber 121 5 C Pressure 1 07 Bar Load Temp 112 6C Heat To Steam Period begins 45 Page 45 AIRPURGEING Chamber 100 5 C Pressure 0 07 Bar Load Temp 70 6C Airpurge 5 34 The Time counts down in Min amp Secs to show AirPurge Time Remaining Here the AirPurge time was set to 10 Min now 5 34 sec remain HEAT TO STERILIZE Chamber 105 5 C Pressure 0 09 Bar Load Temp 95 6C Heat to Sterilize When Sterilizing Conditions are reached the Sterilize Period begins LOAD HEATING TO TEMPERATURE OVERSHOOT BOOST options seitings See LOAD SENSED TIMING Page xx PROFILED OVERSHOOT BOOST Page xx and STERILIZE PERIOD The temperature and pressure will fluctuate within 153 5 C Chamber Pressure 2 17 Bar Load Temp 132 8 Sterilize 5 34 1 Deg C as the system controls at the set temperature The time counts down in Min amp Secs showing the Sterilize time remaining COOLING Chamber 105 5 C Pressure 0 09 Bar Load Temp 95 6C Cool A The system starts to cool down Steam Pressure drops The slow reduction reduces boiling over of media The syste
20. AM CONTROLLER This has only one program and the Membrane Keyboard is arranged to permit Quick Access to the parameters to allow them to be easily changed between cycles The single program is identical to Program 4 of the Multi program controller and has identical capabilities with the exception that the programmer can only be set up to one set of parameter values at a time All aspects of these instructions apply unless indicated otherwise Please disregard any instructions labelled For 4 or Multi programModels Because there is only one program the Program Title feature is not available Program Values may be entered by the Quick Entry method or via the Key Access Supervisor Level exactly as for the Multi program system It is possible to disable the Quick Entry method amp to make Program Parameter Entry only available via the Supervisor Key To do so enable the Selector lock by setting PROG SELECT LOCK to ON in the User Configuration level MXN276 3b doc iss01 ed a OPERATOR CONTROLS amp SYSTEM TECHNICAL DETAILS OPERATOR CONTROLS DISPLAY LCD 16 Character x 4 line LCD TEXT DISPLAY MEMBRANE KEYBOARD START KEY Starts Process DOOR or Open KEY Open Chamber door STOP KEY Stops Process with Key KEY Increases value when setting variables V KEY Decreases value when setting variables ENTER KEY Enters chosen value KEY gives access to secured SUPERVISOR and ENGIN
21. EERING levels Also used for stopping program cycles g Paper Feed KEY Feeds paper on certain optional printers not case mounted or external printers D Clock KEY Selects Clock amp Date Setting mode POWER ISOLATOR SWITCH Turns on AC Mains Power to the system This is a Rotary Switch at the front Marked 0 1 The 1 position is ON COOL LOCK THERMOSTAT This is sited behind the cabinet Senses chamber temp to restrict opening with hot fluids See interlocks below OVERTEMPERATURE THERMOSTAT This is sited behind the cabinet This takes over control of the heater in the event of water loss or overheating It resets automatically when the temperature falls OVERHEAT SAFETY CUTOUT optional fixed not user adjustable This is sited inside the cabinet amp cuts out the control system in the event of excessive temperature rise eg gt 150C It is only resettable by manual operation Page 5 MEMBRANE KEY DELAY To avoid problems caused by accidental key pressing several of the keys have a DELAY built in If pressing the key does not have the immediate desired effect maintain pressing for up to 2 seconds When the key operation produces a BEEP noise then the keypress has been detected and it is not necessary to keep pressing INSTRUMENTATION CHAMBER Temperature Readout Accuracy better than 1 0 Deg C LOAD SENSED Temperature Readout Shown when load sensed timing is selected A
22. INT TYPE A off B off epson APSL40 v 40 character printercode 1 PTYPE A on amp B FREESTANDING printer off CITIZEN IDP562 printercode 2 PTYPE Bon amp A off asl890 printer printercode 3 EPSON STD ORIGINAL 20 CHAR 37 Page 37 CHART RECORDER OPTION AUTOMATIC POWER SWITCHING The Chart Recorder options fitted to Swiftclave Sterilizers are automatically switched on and off during the cycle to reduce paper wastage ON at the start of the cycle OFF when the COMPLETE stage is reached The power can also be switched on and off when in the SUPERVISOR stage This is useful for testing or to allow the paper to be changed on Circular Chart Recorders which have a motor driven Pen Lift Mechanism Please see reference to this in the earlier section Separate Astell Scientific Manuals are supplied when a Chart Recorder option is specified giving details of recorder operation and specifications A copy of the original Manufacturers Manual and literature is also provided ASTELL AUTOSCRIBE DATALOGGER OPTION Automatic Logging Control The AUTOSCRIBE DATALOGGER options fitted to Swiftclave Sterilizers are automatically switched to log amp record the operating cycle without wasting storage space on the between cycle measurements Logging Starts at the start of the cycle and stops when the COMPLETE stage is reached The logging can also be switched on and off when in the Supervisor stage T
23. MXN276 Swiftlock Autoclave 80 to 300Litre As tell Top and Front Loading Programmable Control System 4 LINE DISPLAY CONTROLLER PROGRAMMING INSTRUCTIONS OPERATING INSTRUCTIONS PRINTER OPTION INSTRUCTIONS Astell CONFIGURATION AND ENGINEERING Sidcup SYSTEM INSTRUCTIONS Kent DA14 5DT United Kingdom Tel 44 0 208 300 4311 Fax 44 0 0208 300 2247 INSTRUCTION MANUAL See also Astell Scientific Manual Part No MXN275 orMXN498 Part No MXN276 iss03 edition B Software Issues NSW418 MXN276 3b doc iss01 ed a 12 13 15 17 18 19 20 27 29 29 30 31 32 Contents Introduction Updates and Issues About this Manual Single Program Controller 8 Program Controller Key to Abbreviations Keyboard Instruments Interlocks Setting Clock Water Filling Manual Fill Models Water Filling Automatic Fill Models Startup Power On Opening Chamber Starting Completing Aborting Cycles Setting Programs Single Program models Selecting Programs 8 Program models Cycle Progress Complete Stage Holdwarm Cycle Profile Examples Supervisor Level Program Entry Program Titles Maximum AirPurge Time Options Cycle Log Fault Report Safety Valve Test Program Selector Locked program entry Manual Program Stage Advance Program Abort Running Calibration 33 34 35 37 38 39 40 41 42 45 46 47 49 50 51 52 53 Page 1 Fault System Temp
24. OPBACK detection if the load responds to the temperature fluctuations PROFILED OVERSHOOT BOOST This Astell developed system gives PROFILED OVERSHOOT Where a Load Sensed Timing option sales part no AANO14 is fitted it may be selected in any one of the Program Profiles Where L S Timing is selected ProfiledOvershoot Boost may be selected Note that this system is Active Only if Load Sensing has been selected for a particular program It must also be set ON in Configuration see 5 C Boost page 49 Explanation Of Profiled Overshoot Alternative systems of Load Sensed Timing are compromised by the fact that due to calibration and performance tolerances and offsets the temperature threshold which starts the cycle timing cannot be closer to the chamber setpoint set for the process than approx 2 C for reliable operation The Astell PROFILED OVERSHOOT avoids this by dynamically changing the setpoint temperature automatically in a series of profiled stages to match the temperature of the load heating up This achieves a threshold temperature exactly the same as the Sterilizing temperature and a further function compensates for the small temperature offset between load and chamber during Sterilizing experienced in normal use This system is integral with and dependent upon the use of the Load Sensing system Technical Description PROFILED OVERSHOOT BOOST During the Load Heating To Temperature
25. Temperature will heat to the Set Sterilizing Temperature and will display a message LOAD HEATING TO STERILIZE The Sterilizing timer is stopped When the load reaches Sterilizing Temperature the Sterilizing Timer will START and the cycle will proceed It is not necessary to note down any value or time MXN276 3b doc iss01 ed a GENERAL PURPOSE CYCLE For sterilizing Laboratory Glassware containers cages etc These can be sterilized using the same cycle as the DISCARD load described above AirPurgeing as short as 8 min may be required for simple loads where the steam can penetrate the load easily Small bottles tubes etc may need AirPurgeing up to the maximum allowed time The Cooling Lock Temperature is of less importance if the load does not contain liquids The chamber will cool down more quickly than the load so if the Programmable cooling lock is set to 99C the limiting factor will be the Preset Cooling Lock This must be left set to suit the worst case Liquid load if the autoclave is used for liquids If not used for liquids at all Preset Cooling Lock may be set to 99C 22 Page 22 LABORATORY FABRICS LAB COATS etc For best results these items should only be sterilized in a purpose built Sterilizer with a specific Fabric Textile cycle such as the ASTELL STERICLAVE range of sterilizers This Autoclave is not designed to process Fabric Loads Unless as an occasional or emergency Make Safe
26. The Pin Number is fixed in the factory If unsure please consult ASTELL for the number for your machine Page 38 EXITING from ENGINEERING MODE At the end of the Engineering entries the Engineering mode will be re entered until the displayed EXIT ENGINEERING Answer YES MXN276 3b doc iss01 ed a ENGINEER SETUP FUNCTIONS CONFIGURE Allows Configuration of system TEST ENGINEERINGING Allows various tests on the system components The First item is CONFIGURATION The User Configuration session is shown earlier in this manual The higher levels of configuration ENGINEER CONFIGURATION You will need to enter the CONFIGURATION PIN access code which is normally the same as the ENGINEER PIN access code l BallastCool This enables the Air Ballast cooling system special extra equipment is required J Mediaholdwarm This enables the Media Holdwarm function K LS TIME This tells the system that the LOAD SENSE TIMING option is fitted L Pulse F S On Astell autoclaves this enables the PULSAR AIRPURGE function special extra equipment is required M Venting Wwater This enables the special HTM2010 system that discharges all water at the end of the cycle special extra equipment is required N Elecheat This enables the system for internal Chamber mounted heaters O GENSTEAM This enables the system controller for a built in steam generator P Autofill This tells the system that the Autoclave Mains Wat
27. The person who is to be in overall charge of the Sterilizer should familiarise him herself with the complete system including instructions in the other Astell Stericlave Manuals It is possible to use the machine in a Basic manner leaving out the more complicated operating options OPERATOR The Operator is able to Select the program Start the Program Open and Close the Sterilizer door or cover and load the Sterilizer SUPERVISOR The Supervisor has authority to enter Programs turn on and off options set the optional clock etc These facilities are only accessible by use of the KEY button on the front panel Program settings sometimes called Profiles can only be entered by the Supervisor ENGINEER The Engineer may set up the configuration of the Sterilizer select some of the more complicated operating options carry out certain tests upon the system and Calibrate the sensors Access to the Engineering level is through the Supervisor level by use of a PIN Number password or alternatively by setting a small Internal Programming Switch which is inside the control pod TRAINING INCORRECTLY USED STERILIZERS MAY PRESENT A HAZARD For correct use of this Sterilizer it is recommended that Operators Supervisors and Engineers are made fully familiar with these instructions the other manuals provided with the Sterilizer system and the functions and operation and Safety Aspects of this machine In less formal
28. ULT REPORT automatically The report on the last fault that occurred is held in maintained memory It is accessed via the Supervisor Mode described earlier The report should be retained and made available to the Service Engineer to make diagnosis possible Fault Report Information The fault report supplies a snapshot of the machine at the time the fault occurs A document on how to interpret this is available request diagnose and for download on MXN276 3b doc iss01 ed a LOAD SENSED TIMING Optional Extra All Sterilizer loads have Thermal Mass This means that the load will ALWAYS heat up slowly compared tp the Sterilizer chamber If this is not allowed for in timing or the profile the load will not be subject to correct sterilizing conditions ie it will be exposed to the set temperature for too short a time Load Sensed Timing avoids this problem INSTRUMENT LOADS Most Instrument loads are of fairly large surface area mass ratio and will heat up following the chamber temperature fairly closely without the need for load sensed timing Where a load is suitable for the insertion of a sensor and the thermal mass is high compared to the surface area then Load Sensing can be used MEDIA LOADS Bottled Fluid loads are of high mass and suffer from the slower heat up Load Sensed Timing is entirely suitable and extremely effective in reducing this problem DESTRUCT DISCARD MAKESAFE LOADS These are b
29. VO 3SV31323 lulid eui lul p lunoui pod ANY NOILVYSd0 33d TIIM AVM YAHLO 3H1 SNILLId TOH d3dVd NO NOILVLOY dO NOILOSUIC 3LON 0928 10 0sIV 89S OL JEWS sivd A9 03A93H9 ON YW NOILVOISIGOW sivd SSI ON Lud SAYOLS war Ag sii SNId344 YAdVd Ol YAdVd SNIGVOT 3SV3 LAS 10 20 De S l LAM NIdVO1H3dVd H31NIHd TWNYSLNISTLUL Zo ON INSSI 092 078 ON SNIMVUG 36 MXN276 3b doc iss01 ed a CASE MOUNTED INTERNAL PRINTER This is similar to the Pod Mounted printer but is mounted in the front face of the case of some models in stead of in the control pod Please see additional Astell manual for your Printer Configuration PRINT TYPEA off PRINT TYPEB off epson APSL40 v 40 character REMOTE EXTERNAL PRINTER OPTIONS This is Either 2 colour printer option using 58 mm wide paper using an inked ribbon Or A Monochrome printer similar to the internal model Pleas see other manual supplied It records information in exactly the same manner as the Internal printer option For details of Paper handling ribbon replacement etc please see the Printer manufacturer s manual supplied with the machine Note The PAPER FEED button on the Membrane front panel will not work for this printer use the Button on the printer itself Configuration Note In configuration set the following Printer drive differences for printers Config variables PTYPEA and PTYPEB printercode 0 PR
30. When approx 100 C is attained the AirPurge Period begins AIRPURGEING 100 4 C 0 01 Bar Freesteam 4 34 min The Time counts down in Min amp Secs to show AirPurge Time Remaining Here the AirPurge time was set to 5 Min with 4min 34 sec remaining HEAT TO STERILIZE 100 1 C 0 Bar Heat to Sterilize When Sterilizing Conditions are reached the Sterilize Period begins LOAD HEATING TO TEMPERATURE and PROFILED OVERSHOOT BOOST settings See LOAD SENSED TIMING Page 35 OVERSHOOT BOOST Page 36 STERILIZE PERIOD 100 1 C 0 0 Bar Sterilize 12 34 Mm The temperature and pressure will fluctuate within 1 Deg C as the system controls at the set temperature The time counts down in Min amp Secs showing the Sterilize time remaining COOLING Page 47 100 4 C Bar Cool A The system starts to cool down Assisted Cooling begins at typically 105C or as set in Calibrate If Load Sensed Timing is fitted and selected this is the temperature in the load The Cooling Start temperature is set in Calibration see page xx MEDIA MELTING CONT COOLING LOCK TEMPERATURE REACHED When the Completion Conditions are met as described above COMPLETE The Complete stage occurs when following conditions are met a Pressure is less than about 0 15 bar b Temperature of the CHAMBER is below the Programmed Cool lock Temp or If Load Sensed Timing is fitted The Load temperature is below t
31. ached the following screens show what is delaying completion of the cycle Chamber 80 0C Pressure 0 01 bar Wate COOLOCK or Wait Pressure Coolock is the Cooling Lock Thermostat and Pressure denotes the Pressure switch These will not normally show and you may need to consult your supplier for advice MXN276 3b doc iss01 ed a When CONPLETE STAGE is reached Chamber 80 0C Cycle Complete PressLpooRIKey There is a repeated warning Bip from the sounder Press the Open Key the Door Unlock proceeds as previously described after 30 seconds Unlock and Open closure To Stop Holdwarm Press DOOR key ie open key This will terminate HOLDWARM stage and the COMPLETE display will appear Open the chamber by pressing OPEN in the normal manner 15 Page 15 STOPPING A CYCLE and Cycle Advance Press P and STOP together There is a choice of a MANUAL ADVANCE to the next stage ora CYCLE STOP CYCLE ADVANCE No wEnter Yes Press either Jor a keys Not all stages may be advanced The cycle Stage will move on if this is possible amp available CYCLE STOP No wEnter4 Yes Press either Jor keys Choosing STOP will cause the CYCLE to abort but the sterilizer will continue to operate until the chamber and load have been made safe This requires that the cycle end cooling stages are completed Choose No to go back to normal running operation NOTE
32. ad experiences the set conditions for the set time There is no need to compromise or extend times to allow for the load to catch up in temperature with the chamber SPECIAL LOAD SENSORS The Load sensor provided with this system is a 5mm Dia armoured flexible type K thermocouple This may be too stiff or solid to use for some loads Alternative sensors with Clips and Attachments and a variety of Load Sensors are available for special load requirements COOLING LOCK AND LOAD SENSED TIMING Selection of the LOAD SENSED TIMING function in a program also implements a LOAD SENSED COOLING LOCK for that program In this case the COOLING LOCK senses and acts upon the actual Load temperature The Cooling Stages operate normally but the COMPLETE stage cannot be reached until the load and hence the LOAD SENSING PROBE has cooled to a temperature below the COOLING LOCK TEMPERATURE set for that Program HEAT DROPBACK TIMING SELECTED The Dropback action and display etc operate as described for the standard machine WITH LOAD SENSED MXN276 3b doc iss01 ed a In addition if the LOAD temperature itself drops a further nominal 2 Deg C below the threshold once sterilizing has begun this will also trigger the DROPBACK detection and the Sterilizing Timer will restart as for the standard Dropback action The extra 2 Deg C below the threshold allows for the fact that the temperature control is cyclic and this can cause false DR
33. all amp Cooling Lock sensor will cool down faster than the load PROGRAMMABLE COOLING LOCK The STANDARD SYSTEM Operates when LOAD SENSING option is NOT fitted or NOT selected This uses a Cooling Lock Temperature set by the user within the Program Profile which is compared with the Chamber Internal Temperature Sensor the same temperature as appears on the Temperature display When the CHAMBER temperature is above this PROGRAMMABLE cool lock temperature the lock is active engaged and Completion is inhibited preventing the door from unlocking The Chamber Sensor detects the temperature within the steam space amp it will normally Cool faster than the Load amp or the chamber Wall Load Sensed Cooling Lock if LOAD SENSED COOLING OPTION is fitted amp selected for that program In this case the Cooling Lock Temperature set for the Program is not compared with the Chamber Temperature but instead the Temperature measured by the flexible LOAD sensor When this Load sensed temperature is falling but still above the PROGRAMMABLE _ cool lock temperature the lock is active engaged and Completion is inhibited so the door cannot be unlocked MXN276 3b doc iss01 ed a AS the LOAD SENSING PROBE detects the temperature within the LOAD itself it will always represent the actual load temperature assuming it has been correctly placed in the load DUAL COOL LOCK ACTION The temperature of ACTUAL LOAD and CHAMBER WALL
34. amber If LOAD SENSED TIMING option is fitted this senses the Load Temperature instead of chamber temperature COMPLETE Stage lf HOLDWAR M is not selected see HOLDWAR M next item When the Complete conditions are met display shows Chamber 89 6 C Pressure 0 02 Bar Cycle Complete Press CDoor Key You may now Open closure as normally Press the Open Key after 30 second delay Unlock and Open closure Note To silence BIP noise warning without opening door press OPEN button but do not open door and after that BIP noise is muted 18 Page 18 HOLDWARM The Holdwarm system is designed to allow sterilization of MEDIA loads with a holding stage during the cooling process that maintains the temperature of the load and chamber warm enough to permit pouring of the melted media Holdwarm appears as a stage between ASSISTED COOLING and COMPLETE The media will be kept warm for up to 48 Hrs The Autoclave may be set to operate overnight with a Media Load in the knowledge that it will contain a useable load when opened in the morning or later in the day The Holdwarm temperature is fixed to 25C below the Programmable Cooling lock temperature set in the program Holdwarm may be set on or off within the program profile When the Completion Conditions are met as described above if selected the system goes instead to the HOLDWAR M stage Chamber 89 6 C Pressure 0 02 Bar Media Holdw
35. ance value required for the water level sensors Typical 100 Max 150 min CALIBRATION WET LEVEL 100 Off v Enter 0n 10 Adjust this to permit correct detection of water for available water quality Hard water low value soft water High value DROPBACK LEVEL Set to the Dropback threshold in 1 10 Deg increments ie 20 2 deg C Typical 20 CALIBRATION Dropback 20 Off w Enter a 0n This is the temperature drop that will trigger the Dropback fault sytstem Max 5C min 1C LOG TIME Set to the log time INTERVAL for printing in seconds This controls the interval during Airpurge CALIBRATION Log Time 60 Off w Enter 0n and Sterilize periods Calibration service int CALIBRATION Service Int 222 Off v Enter 0n Please do not attempt to change this without consulting service dept THIS COMPLETES CALIBRATION MODE MXN276 3b doc iss01 ed a At the end there is a delay as the new values are stored in permanent memory YOU CAN THEN CHOOSE TO RUN CALIBRATION AGAIN OR EXIT CALIBRATION 44 Page 44 RUNNING CALIBRATION The Calibration of the system may be corrected or adjusted when the system is actually operating in a cycle Running Calibration is not available in all operating stages To make Running Calibration available you must enter ENGINEERING SETUP mode t is not necessary to change anything just enter and exit Once you exit ENGINEERING SETUP r
36. arm Door to Exit TO STOP HOLDWARM Press DOOR key This will terminate HOLDWARM and move to the COMPLETE Stage see previuous item Then Open the chamber in the normal manner MXN276 3b doc iss01 ed a AUTOFILL OPTION The Autofill option comprises a water tank and c float switch controlled inlet valve It also has a low water float switch to detect water level supply problems If fitted and configured ON the system operates as described but when the cycle starts it fills with water supplied from the tank a pump up to the RUNNING LEVEL set by the upper conductivity probe in the chamber During this period the system displays Charging With Water If this goes on for too long there may be a problem with water level detection water quality or thepump and valvework Please consult your service agent At the end of this it goes to the stage HEAT TO STEAM If the water supply is affected and the tank level falls the system will detct this and indicate Autofill tank Low Level Seek the source of the problem before calling for service as the usuakl cause is that someone has turned off the water PULSED FREESTEAMING Option The PULSAR pat system is a Astell patented system for improving steam penetration into difficult loads without requiring the complication of vacuum pumping systems When this option is fitted and selected within a program the behaviour in the AIRPURGE
37. artment Our service staff are able to repair or maintain your equipment on site if required Note that the fitting of Non Astell approved Parts will render this machine Non Compliant with the E C E U E M C and L V Directives and will void the CE mark Continued use of a machine which does not comply is a criminal offence under E C E U law For SALES PRICES AND INFORMATION Contact ASTELL SALES DEPARTMENT For SERVICE And SPARE PARTS Contact ASTELL SERVICE DEPARTMENT For TECHNICAL SUPPORT Contact ASTELL DESIGN DEPARTMENT MX ASTELL POWERSCROFT RD SIDCUP KENT ENGLAND DA14 5DT Tel 44 0 208 300 4311 W Fax 44 0 208 300 2247 p SERVICE ASTELL COM 50
38. ature rises again the timing restarts The standard dropback level is 2 C below set temperature but may be adjusted b Load Sensed Timing System Optional Extra LOAD SENSED TIMING is selectable on or off within the Program A threshold is set automatically within each Program at 2 degrees C below the sterilizing temperature set in that Program This threshold is compared with the Temperature measured by the LOAD SENSING PROBE the flexible wandering probe placed by the user within the load or load simulator During the part of the cycle HEAT TO STERILIZE the load heats up slower than Page 9 the chamber The Chamber reaches set temperature first and is maintained there by the controller When the rising temperature in the load catches up with the threshold eg the Sterilizing Temp this is sensed and the Sterilizing Timer System stars the Display changing to show STERILIZING with the normal time count up on the display c Load Sensed Timing combined with PROFILED OVERSHOOT may be set in configuration if Load Sensed Timing option fitted This system gives PROFILED OVERSHOOT This system is Active if Load Sensing has been selected for a particular program AND it has also be set ON in Configuration Explanation Of Profiled Overshoot Alternative systems of Load Sensed Timing are compromised by the fact that due to calibration and performance tolerances and offsets the temperature threshold which starts
39. atures 80C is suggested for both the Programmable and Preset settings Start the cycle and allow it to complete Very Carefully remove the load using insulating gauntlets and suitable face protection in case the load is too hot Immediately measure the temperature of the liquid in the load container that was nearest the centre Record this temperature and compare it with the desired opening temperature 80C suggested The measured temp is likely to be higher than the desired temperature Adjust the Programmable and Preset settings as required and repeat the cycle with the same load open measure and re adjust if required Continue until the desired Cooling Lock release temperature is reached SETTING COOLING LOCKS with LOAD SENSED TIMING OPTION COOLING LOCK TEMPERATURE With LOAD SENSING SELECTED The LOAD SENSING option automatically changes the PROGRAMMABLE COOLING LOCK to a mode which detects the Temperature of the Load itself via the LOAD SENSING PROBE instead of sensing the temperature in the Dummy Load Set the PROGRAMMABLE COOLING LOCK TEMPERATURE to the actual Temperature of the LOAD at which the Cooling Lock is to RELEASE and allow the door to be opened It is advisable to err on the Cooler side for safety Because the cool lock senses the actual load temperature there is no compromise estimation or guesswork required over the release temperature MXN276 3b doc iss01 ed a SUPERVISOR LEVEL PIN NUMBERS
40. b doc iss01 ed a USER CONFIGURATION Some basic Configuration items are available to the Supervisor Page 31 A Prog Sel Lock This is the Select Lock If ON only the supervisor may select Programs via the KEY button amp Pin No See Selecting a Program for details A Change User Pin No w Enter Yes Selectlock Select YES to change the user Pin no to one of your own choice Off v Enter 0n User PINCODE 157 Use the Upa and Down arrows to select w Enter On or OFF for this Config Item Use up down buttons to select Pin no Now WRITE IT DOWN Press ENTER to save amp Move on The Rest of the USER Config items are B ABSPRESS Absolute Pressure Display in stead of Guage Engineer Setup le atmospheric Pressure approx 1 0 Bar abs C US Format Selects United States format for date and pressure in Pounds per sq in If setto ON date 14 08 97 14 August1997 amp Bar If set to OFF date 08 14 97 14 August1997 amp PSIG Select YES to go to Engineer Setup Mode See section Setup Engineer D 5C Boost If set to ON the Profiled Overshoot Boost system is enabled on ALL programs where Load Sensed Timing is selected Press NO w to return to READY Stage E SPARE NOT USED Some versions have BeepInhibit If set to ON this inhibits many of the BEEP sounder indications for those situations where the sound may be an annoyance
41. bag GLASSWARE CYCLE Suitable for sterilizing Empty Unsealed Glass containers animal cages metal or plastic containers etc MEDIA WARMING CYCLE allows the heating melting of media without full sterilization SEE NOTE LATER IN THIS SECTION LOAD SENSED TIMING Option see Load Sensed Timing STERILIZE TIME Set the Sterilize time to the desired exposure time Allowance For Extra Time For Load To Reach Sterilize Temp These Loads normally require an allowance for extra time for heat up as they suffer from high thermal inertia If the LOAD SENSED TIMING option is not used an allowance is needed for the time taken for the load to catch up with the chamber temperature Extra time should be added to the Sterilize time to compensate Please see SETTING UP AND COMMISSIONING SECTION STERILIZE TEMPERATURE Set to the desired sterilize temperature COOLING Cooling mode is automatic chamber cools naturally to threshold then vents water and continues cooling to cool lock temperature COOLING LOCK S Set to 80C for safety Please see SETTING UP AND COMMISSIONING SECTION MEDIA MELT WARMING CYCLE This system allows media MELTING WARMING cycles below 100C 21 Page 21 If one program has been set as a Media Warming Cycle then with this program You still need to set the parameters to suit your desired cycle The key difference is that this cycle will not heat the load to a sterilizing temperature such as 1
42. ccuracy better than 1 0 Deg C PRESSURE Readout if fitted With automatic Zero Accuracy Better than 0 05 Bar PRESSURE Gauge Dial Bourdon pressure gauge at front of machine Accuracy Better than 5 DISPLAY CHECK FUNCTION Tests Temp and pressure instruments In READY state with door shut Press the STOP key this will momentarily display current temperature pressure etc MXN276 3b doc iss01 ed a SAFETY INTERLOCKS PRESSURE INTERLOCK Preset to lt 0 15 Bar this is an electrical interlock operated by a precision pressure switch preventing the electrical release of the Closure lock if the chamber is pressurised OVERPRESSURE CUTOUT This is preset to 3 00 Bar If this operating pressure is exceeded indicating instrument or safety valve problems then the heating is shut down a warning shown and a fault condition generated Note that Inspection of the Fault report will show pressure gt 300 3 00 bar TEMPERATURE INTERLOCKS STARTING INTERLOCK Prevents starting a cycle with a dangerously hot or pressurised chamber Chamber 121 5 C Pressure 1 07 Bar Temp Pressure Temp gt gt 100C Chamber 121 5 C Pressure 1 07 Bar Temp Pressure Pressure Sw Pressure Sw there is pressure in the chamber Temp gt gt 100C means the temperature in the chamber is too high COOLING LOCKS There are two Cooling Locks to prevent the Sterilizer being opened with a Liquid Load under
43. e will normally cycle up and down over a range of approx 0 7C around the set sterilize temperature Where temperature is specified as 0 adjust the temperature as shown here Program Specified Settings Settings 3 mins 3 mins 10 mins 10 mins Recommended 15 mins 15 mins 115C 0 3 116C 30 mins 30 mins MXN276 3b doc iss01 ed a CALIBRATION This machine has been factory calibrated to NAMAS standards by Astell Scientific It is often the case that a machine must be calibrated on site to comply with local requirements and this can be carried out by Astell Engineers Details of full on site Calibration techniques are in the Service information provided to agents or in calibration Instructions available to download on request Note that calibration requires specialist calibrated reference thermometers and pressure gauges and an understanding of sterilizer calibration and thermocouples Autozero Pressure Calibration When the door is open the system periodically re calibrates the ZERO setting of the pressure transducer A brief warning message may appear during this period lt does not affect any other operations and requires no user intervention SETTING COOLING LOCKS The Cooling Locks are present for all cycles including Solid loads and Glassware programs Warning Cooling Lock settings are part of the safety system and are the responsibility of the owner user of the machine they must be
44. e adjustment Press NEXT to step to the next parameter in the list At the end there is a delay as the new values are stored in permanent memory 42 Page 42 MXN276 3b doc iss01 ed a Additional Calibration Parameters Following the Instrument Calibration parameter values required for the cycle are entered CALIBRATION More No COOLING START CALIBRATION Cool Starts C100 Off Enter 0n This is the temperature Deg C at which the Fast Assisted Cooling System starts The chamber cools down naturally to this temperature then the Cooling is activated Min 90C Max 135C It is typically Set to 100C Setting a higher temperature will speed up cooling but will increase boling over and loss of the load contents on Bottled Fluid Loads e g Media Min Purge Time CALIBRATION Min Purge Off Enter 0n This is the minimum value that the airpurge time can be set to It depends on chamber size and spec to ensure there is always a suitable amount of airpurgeing FREESTEAM START TEMP CALIBRATION F S Starts C97 Off v Enter 0n This is the temperature at which the system switches stage to the Airpurge the sytystem will 43 Page 43 not proceed until the temp exceeds this setting It is dependant upon altitude Standard setting is 97 98 C at sea level To set set 2C below the temp at which water boils at the installed site WET LEVEL Set this to the resist
45. e hits the bottom the numbers move up to make room and similarly at the top All 10 programs can be selected When the required program is flashing press the ENTER button to select it The Display will change to show the Parameters and BASIC Settings for the selected program note titles temperatures and times may vary from the examples shown here Liquidload B PROGRAM 5 TITLE 123 0C 15min MXN276 3b doc iss01 ed a Page 13 Example Program Types Classic model Waste Destruct 135 0 C 30 Min Liquid load A 123 0 C 15 Min Liquid load B 123 0 C 15 Min Glassware 123 0 C 15 Min Waste Destruct 135 0 C 15 Min Media Warming 135 0 C 15 Min When using the gt or Enter routines to change values or settings Holding the Pl key Pressed whist simultaneously pressing the or gt button will alter the value on the display in 20 s instead of single digits This makes large changes quicker and easier 13 MXN276 3b doc iss01 ed a STARTING A CYCLE The Chamber Closure Door Cover must be closed and locked Note If your machine does not have Automatic Water Fill option you must fill the chamber manually please refer to the operating instruction manual for details Until this point the chamber will display the message PLEASE FILL Select the chosen Program Cycle PRESS the START Key IF DELAYED START is NOT selected in config the Cycle Starts immed
46. em controls at the set 48 Page 48 temperature The time counts down in Min amp Secs showing the Sterilize time remaining COOLING 120 4 C tere B a t Cooling A The system starts to cool down Steam Pressure drops The slow reduction reduces boiling over of media The system cools NATURALLY to typically 100C or as set in Calibate then Assisted Cooling begins If Load Sensed Timing is fitted and selected this is the temperature in the load COOLING LOCK TEMPERATURE REACHED When the Completion Conditions are met as described above COMPLETE The Complete stage occurs when following conditions are met a Pressure is less than about 0 15 bar b Temperature of the CHAMBER is below the Programmed Cool lock Temp or If Load Sensed Timing is fitted The Load temperature is below the Programmed Cooling Lock Temp c Temperature of the COOL LOCK Thermostat sensor on the chamber wall is below the set cool lock temperature Press the OPEN Key Unlock and Open closure MXN276 3b doc iss01 ed a Page 49 Pressure Temperature Calibration This chart shows Pressure and Temperature correlation for Saturated Steam and the Maximum Minimum acceptable Temperature display Values for a Correlation Accuracy of 2 It applies to ASTELL Sterilizers only Pressure Temperature Temperature Tolerance Bar Deg C Min Temp Max temp 0 65 114 51 112 22 116 80 0 70 115 40 113 09 117 71 0 75 116 28 113 95 118 61 0 80
47. er In the event of a fault in this system that is detectable by the computer an INTERLOCK FAULT is reported INTERLOCK FAULT This shows that one or more of the safety and door interlocks are out of adjustment and require the attention of a qualified engineer PRESSURE SWITCH FAULT The Safety Pressure switch detects pressure innthe chamber above about 0 15 Bar And is responsible for preventing access to a pressutised chamber It is sensitive and in the event of drift in setting age or misuse may fail normally failing to the safe mode If the pressure switch detects pressure at the start of the cycle when there cannot be pressure in the chamber then it will enter a test mode This displays as Pressure Switch Test 2 32 Page 32 The counts up to 15 or 20 during this period the chmber is exhausted to atmosphere If at the end of this the pressure switch is still reading pressure a FAULT is detected and the system goes into Fault report mode If the problem disappears in this period the system self corrects back to normal operation FAULT REPORT Faults are often intermittent and the system reports the condition of the interlocks when the fault happened This report is provided on standard models by a series of displays on the LCD display These should ideally be read by the operator and written down by the operator following the instructions on the display If a Printer is fitted it will print out the FA
48. er Automatic water Fill system is fitted special extra equipment is required Q PurgechkAsitell system for checking if the air purgeing is adequate consult Astell before use R ProgLock Selects whether Parameters are locked against user supervisor alteration 39 Page 39 CALIBRATION Allows calibration of Temperature amp Pressure sensors and other settings Set to ON to lock parameters of Program Profiles for Engineer changing only Set to OFF for normal access to change program profiles s Recorder When set to ON this means that an Astell Chart Recorder or Datalogger is fitted and allows the auto power switching to operate AA PrintrFitted Enables output to one of the specified printers BB Spare CC Printcode A DD PrintCode B These two items Printcode A B are used together to define 4 different specifications of printer EE ExtData Enables external RS232 Data output FF P 9600Bd Enables 9600 Baud to printer in stead of std 2400 baud GG Serdata PO Sends serial data to printer port 4 This is the end of Configuration entries The next display is If the KEY is pressed whilst this display shows RESET then the Factory Default Program Settings and titles will be written into the EEPROM permanent memory of the controller These will wipe any settings previously entered by the user Use only if you are totally sure that you wish to reset program settings MXN276 3b doc iss01 ed a
49. erature Dropback Interlock Failure detection Load Sensed Timing Option Overshoot and Profiled Overshoot Boost Internal Printer Option Paper amp Ribbon Changing Printer Paper Problems External Printer Option Paper Changing Diagram Chart Recorder Datalogger Option Engineering Level Engineering Level Configuration Engineering Level Engineering Tests Engineering Level Calibration Running Calibration Special Engineering Functions EEPROM dump Pressure Switch Test Dilswitches Safety Valve Overtemperature Cutout Pressure Temperature correlation chart Service Details MXN276 3b doc iss01 ed a Page 2 SWIFTCLAVE MULTIPURPOSE STERILIZER PROGRAMMABLE CONTROL SYSTEM This manual details the Programmable Controller used in this range of Multi Purpose Sterilizers Programming and Controller Operation are covered here but this manual does not advise on day to day operation of the Sterilizer itself setting up for different loads Loading arrangements Safety or Sterilizing advice Installation Instructions Operating Instructions amp Maintenance Instructions are provided in A separate Instruction Manual Control System The Sterilizer is provided with a control system comprising a Keyboard and Illuminated Liquid Crystal Display An optional Internal or external printers may be mounted in the control pod on the cabinet or freestanding to record the Sterilization Cycle progress Optional Remote
50. eriod amp other variables are set to provide the desired Cycle Profile Please note that correct Sterilization is dependent upon the program PROFILE being suitable for the load and processing required MXN276 3b doc iss01 ed a DETAILS OF CYCLES Throughout each cycle the LCD display shows Temperatures Times and other cycle stage information These particular cycles have a slow pressure release and NO drying facilities When the cycle has been started the heating begins A cycle cannot be started with insufficient water Please see AUTOFILL section if your machine has Autofill option installed HEATING TO STEAM Chamber75 6 C Pressure 0 00Bar Heat To Steam When approx 95 99 C is attained the Airpurge Period begins this temp is adjustable AIRPURGE Chamber 99 6 C Pressure 0 02Bar AirPurge 09 54 The Time counts down in Min amp Secs to show Airpurge Time Remaining See PULSAR Pulse Freesteam section An Airpurge time of 7 minute is the minimum advised for solid loads such as empty glassware but longer Airpurge times are usually requred HEAT TO STERILIZE When Sterilizing Conditions are reached ie steam saturation in the load defined by the elapsed Air Purge Time the Sterilize Period begins Chamber 99 6 C Pressure OQ O2Bar Heat To Sterilize 17 Page 17 STERILIZE PERIOD LOAD HEATING TO TEMPERATURE OVERSHOOT BOOST options seitings See LOAD SENSED TIMING am
51. es The water flow cools the steam and ensures that the output is compatible with plastic drainage If the water flow is too low or the supply is cut off the system detects the temperature rise in the pipe and shuts the steam exhaust valve this will result is a failed cycle but will prevent the consequent damage to the building drainage pipes 20 Page 20 Air Ballast COOLING This is an optional extra This system uses either an additional air compressor or a building supply of comprtessed air A regulator and filter supply the aair to a solaenoid valve which introduces it to the chamber during cooling The Compressed air is metered into the chamber and the pressure controlled by themicroprocessor to establish a pressure which is higer than the pressure within Sealed Fluid Bottles during the cooling phase to allow sealed containers to be used and reduce boilover A typical display would be as below Chamber 109 6 C Pressure 1 12 Bar Ballast Cool At the end of Ballast cooling there is a EQUALIZE period of 90 seconds then the system goes to COMPLETE stage as before MXN276 3b doc iss01 ed a NOTES AND SUGGESTIONS On Programming LIQUID CYCLE This is suitable for processing Media or other fluids etc in UNSEALED containers WASTE DESTRUCT CYCLE This is suitable for processing laboratory waste petri dishes tubes jars bottles etc These must be in a shallow open container and not sealed in a plastic
52. est sterilized WITHOUT Load Sensed Timing The Profile should provide sufficient tolerance to ensure the cycle specification is achieved When Fitted as an option No AARO14 It must also be enabled in the Configuration LOAD SENSED TIMING is selectable On Off within each Program A temperature threshold is derived automatically within each Program equal to the Sterilizing Temperature set in that program This Threshold is compared with the Temperature measured by the LOAD SENSING PROBE the flexible wandering probe placed within the load orina suitable Load simulator Chamber 121 5 C Pressure 1 07 Bar Load Temp 112 6C Load heat gt gt 121C 1 line shows Chamber temp 2 line shows pressure 3 line shows Loiad temperature 4 line shows Load is heating to the indicated target temperature 33 Page 33 During the Load Heat gt gt temp stage the Chamber temperature is artificially boosted 2 C above the set sterilizing temperature load as the set Sterilizing monitors the the The load sensor temperature approaches Temperature When the load temperature equals the set Sterilizing temperature the boosted chamber temperature is reduced to just 0 3C above the set Sterilizing temperature Chamber 121 5 C Pressure 1 07 Bar Load Temp 121 6C Sterilize 15 00 If correctly positioned the LOAD SENSING PROBE detects the temperature within the LOAD and so will ensure that the lo
53. establishments the SUPERVISOR may be an OPERATOR who has adequate authority and ability to set up the sterilizing process The ENGINEER will normally need to have been trained in a relevant discipline possibly as a Sterilizing Engineer be conversant with Micro Electronic system handling procedures and be suitably qualified to carry out the adjustments and changes that may be required ASTELL recommend that the ENGINEERING level is not accessed by anyone who does not have an understanding of the control system instrumentation used in this Sterilizer The manufacturers reserve the right to restrict warranty provisions if any part of the Sterilizer is modified removed or adjusted without express instruction by the manufacturer or in variance with the instructions in this manual EC DIRECTIVES Your attention is drawn to the EC Low Voltage Directive and the E M C directive which affect modifications and repairs to this equipment Only parts supplied by the manufacturer as spares or accessories will ensure compliance with the directives MXN276 3b doc iss01 ed a Page 4 Single Program and Multi Program Controllers This manual covers the Single Program controller It also covers the 10 Program controllers The two controller types share most operating features and operations The Membrane Keyboards and the method of entering programs are the same and the Displayed messages are appropriate to the control system type SINGLE PROGR
54. g with PROFILED OVERSHOOT BOOST and Load Sensed Timing Profiled Overshoot Boost on Offset i oO y Reduced Time 2 5 k Q a 5 I Without Profiled Overshoot With Profiled Overshoot Boost MXN276 3b doc iss01 ed a INTERNAL PRINTER OPTION POD MOUNTED VERSION The printer option prints on 58 mm wide paper using an inked ribbon and records information that is also available from the LCD display A REAL TIME CLOCK is provided with battery maintenance for typically 28 days Configuration Note set the following The Printer Type a on The Printer Type b on For best operation use only Astell Scientific Supplied paper and ribbons OPERATION OF PRINTER Please note that the print is not visible immediately after printing since the point at which the printing occurs is inside the case amp hence out of view PRINTER PAPER FEED Press the PAPER FEED key on Control Panel PAPER TEAR OFF Press the PAPER FEED Key to move the paper end up a little if needed This is also useful to check that the paper is feeding properly Hold the end of the paper firmly and pull gently away from the face of the control panel to tear the paper off on the serrated edge Do NOT drag the paper vertically out of the printer LOADING FRESH PAPER Incorrect loading causes many expensive service call outs Please ensure that the paper loading method described here is used Do not tear all ways cut the paper w
55. he Programmed Cooling Lock Temp c Temperature of the COOL LOCK Thermostat sensor on the chamber wall is below the set cool lock temperature HOLDWARM If selected the Complete stage is immediately followed by the Holdwarm Stage 79 5 C 0 0 Bar Chamber Pressure MediaHoldWarm Door To EXIT TO STOP HOLDWARM Press OPEN key This goes to COMPLETE SEE ABOVE MXN276 3b doc iss01 ed a MAKESAFE DISCARD CYCLE 134deg C for 7 Minutes 8 Minutes AirPurgeing Assisted Cooling 80Deg C Cooling Lock Select and Start the cycle Throughout the cycle the display shows Temperatures Times and other cycle stage information The stages are as follows HEATING TO STEAM 15 6 C 0 00 Bar Heat To Steam When approx 100 C is attained the AirPurge Period begins AIRPURGEING 100 4 C 0 01 Bar Airpurge 7 55 m The Time counts down in Min amp Secs to show AirPurge Time Remaining The water reservoir supports AirPurgeing up to 35 minutes in duration Here the AirPurge time was set to 8 Min 7min55sec left HEAT TO STERILIZE 125 4 a Bar Heat to Sterilize When Sterilizing Conditions are reached the Sterilize Period begins LOAD HEATING TO TEMPERATURE PROFILED OVERSHOOT BOOST settings See LOAD SENSED TIMING Page 35 OVERSHOOT BOOST Page 36 and STERILIZE PERIOD 1354 56 2 27 Bar Sterilize 6 34 m The temperature and pressure will fluctuate within 1 Deg C as the syst
56. heel using the tip of a Biro Pen in the direction shown by the arrow on the cassette This tensions the ribbon 4 Place the New Ribbon Cassette in position over the mechanism Press the Larger end with the Wheel down gently until the clutch engages 5 Press PAPER FEED for 5 10 seconds to align the ribbon in the slot The ribbon should be neatly in the slot provided If the ribbon is distorted and above the slot remove amp retension the ribbon and repeat the fitting 6 Re load the paper as described above PRINTER PROBLEMS Most Printer Faults are due to the paper or ribbon being incorrectly installed or use of incorrect paper or ribbons The Paper end MUST be cut cleanly at the illustrated angle or it may tear jam and clog the printer mechanism Ensure paper roll is fitted correct way up Paper feeds off the TOP of the roll Ribbons must be fitted with the ribbon correctly seated in the slot Installation of paper to the printer is outside the manufacturers control Service calls during the warranty period which in view of the manufacturer or agent are caused by the incorrect type use or fitting of paper may incur service charges Page 36 MXN276 3b doc iss01 ed a y WOus Q3Al1830 31vgq A9 G3nssl t uk J PEENE H ae ks dy YACTOH 1104 Y3dYd R R Ra s tr vay 3SVO SdHYYMY04 SONIH 9 Adis NO HOL
57. his is useful for testing Separate Astell scientific Manuals are supplied when AUTOSCRIBE Datalogger is specified giving details of operation and specifications Software and connector leads are provided for use with the host PC computer MXN276 3b doc iss01 ed a ENGINEER SETUP LEVEL The basic functions of the controller are set up in the ENGINEER LEVEL Warning The Engineering level may involve contact with the electronics of the controller and as such renders the system liable to static electricity and damage by mechanical or other causes It is intended to be used only by qualified engineers who have been shown how to perform such adjustments by the manufacturer s agent or who are carrying out such adjustments on behalf of or under the instruction of the manufacturer Any damage ensuing from unauthorised access to this level may be outside the scope of the warranty provisions The Engineering Level is accessed from the SUPERVISOR LEVEL ENABLING ENGINEERING MODE Access to ENGINEERING mode is controlled by the Access PIN number code or alternatively by setting of a switch on the main PCB 1 PIN number access Use the KEY button to access the SUPERVISOR mode and step through the Supervisor questions When display shows Engineer setup No w Enter Yes Answer Yes Engineer setup Access Code 197 w Enter Change the 197 to the ENGINEER Access code PIN number Then Press ENTER
58. iately IF DELAYED START IS SELECTED in configuration then you are asked to enter the start delay in HOURS Then press ENTER see later for details If a Printer is fitted then the Printout Heading and cycle description will be printed The Cycle will start The controller will perform the program profile automatically without any need for operator attention until completion Note Automatic Water Fill option If your machine has this option at Start it will go to the CHARGING WITH WATER stage Water will be pumped into the chamber base until it reaches the upper Running Level probe at which point the cycle will go to HEAT TO STEAM stage and proceed normally as described Page 14 COMPLETION OF CYCLE Immediately before the COMPLETE stage is the EQUALISE STAGE Here the chamber is given a chance to equalise temperature and pressure with the outside world Equalise 60 seconds xx sec After the 60 seconds counts the system goes to COMPLETE STAGE The Complete stage occurs when following conditions are met For ALL Programs 1 Pressure in the chamber is less than about 0 15 bar 2 Temperature of the CHAMBER is below the Programmed Cool lock Temp or If Load Sensed Timing is fitted The Load temperature is below the Programmed Cooling Lock Temp 3 Temperature of the COOL LOCK Thermostat sensor on the chamber wall is below the set cool lock temperature Until the stage is re
59. ints a simple Menu of You must first have Set up the Sterilizer with no load and close the cover THEN Go to 5 ocean ah Supervisor mode move through to SAFETY j VALVE TEST Enter YES then YES to the CONFIRM question Confirm TEST PRINTING Then step through amp quit Supervisor Mode The display shows a warning about Safety Valve Testing and then changes to READY mode Supervisor Leve L with a warning noise Press the START Key to TEST PRINTING start the safety valve test cycle NOTE ESCAPE ROUTINE If this mode is a Yes entered in error Press the OPEN key and open the chamber This will reset to the previous settings for the program Press No Press Yes If the cycle is started in error abort the to move on to Print a simple piogramg printing quality test on the optional printer Your attention is drawn to the section on if fitted Safety Valve Testing Recorder LOGGER Manual Power CONFIGURATION 26 MXN276 3b doc iss01 ed a USER CONFIGURATION The User section of Configuration is accessible to the Supervisor including changing or setting the USER PIN NO For details of complete Configuration see later section Supervisor Level Configuration No v a Yes Press No Press a Yes to move on to enter USER CONFIG Mode See CONFIGURATION section later on CYCLE LOG not available all versions Supervisor Level Show La
60. ist options such as modes for HTM20 10 Compliance are available they will appear next in this sequence Next the system allows you to set NUMERICAL VALUES Instead of On or OFF SET STERILIZE TEMPERATURE Program 2 title Temp Steri 123 Enter Press w or to a adjust in Deg C a ENTER followed by ENTER Press Enter to select that value a lt lt lt v This Entry sequence is continued for each of the other parameters a to go BACK 1 entry v to go BACK 2 entries Press Enter to move on 29 Page 29 List of Parameters Steri temp STERILIZE TEMPERATURE Steri time STERILIZE TIME Cool Lock COOL LOCK TEMP Note that for a selected MEDIA WARMING MEDIA MELTING program the Sterilize temperature value sets the PROCESS temperature at which the chamber will be held for the set time because we are not actually sterilizing but just warming or melting eg Melt and hold at 80C requires this to be set to 80C PROGRAM TITLE ENTRY Enter Title No w Enter Yes At the end of the Program Parameter Entry section the user is given the choice of entering or changing an alphanumeric TITLE for each program The TITLE is displayed or printed to enable easy reference and identification of programs The Factory set titles may be changed to titles that suit the actual loads amp processes Each TITLE consists of 16 characters which are entered in se
61. ith a sharp pair of scissors a likely cause of problems is the introduction of paper fragments produced when paper is torn ACCESS TO PRINTER MECHANISM The front panel hinges at the side and is held closed at the other side by a spring catch Release the front panel by depressing this catch and hinge the panel sideways PAPER ROLL HOLDER Cut the end of the new roll with scissors cleanly across at an angle as shown Do not tear across the paper or cut to a point as this will make it difficult to feed in the paper Remove remnants of the old roll and the old cardboard roller centre Load the paper roll to the holder so that the paper exits the roll as shown in the following drawing 35 Page 35 Feed the end into the inlet slot at the rear of the printer assy facing the paper roll Hold the paper gently but firmly in the printer slot amp Press the Paper Feed Key until paper emerges at the top of the printer CHANGING RIBBON The Printer Ribbon is the small black L shaped cassette that sits above the paper inlet slot To fit the ribbon first be remove paper from the printer Cut paper between printer and paper roll across 10 20 degrees as detailed above 1 Press PAPER FEED until all paper has been ejected from the printer mechanism Do not pull paper out by hand 2 Grasp the Ribbon Cassette at the ends and Lift off the mechanism 3 Hold the new Ribbon Cassette by the ends and rotate the small w
62. m cools NATURALLY to typically 100C then Assisted Cooling begins If Load Sensed Timing is fitted and selected this is the temperature in the load The Cooling Start temperature is set in Calibration see page 48 Media Cycle cont MXN276 3b doc iss01 ed a COOLING LOCK TEMPERATURE REACHED When the Completion Conditions are met as described above Chamber 80 0C Cycle Complete PressLpooRIKey COMPLETE The Complete stage occurs when following conditions are met a Pressure is less than about 0 15 bar b Temperature of the CHAMBER is below the Programmed Cool lock Temp Or If Load Sensed Timing is fitted The Load temperature is below the Programmed Cooling Lock Temp See Page 34 c Temperature of the COOL LOCK Thermostat sensor on the chamber wall is below the set cool lock temperature HOLDWARM If selected the Complete stage is immediately followed by the Holdwarm Stage Chamber TISIC Pressure 0 0 Bar MediaHoldWarm Door To EXIT TO STOP HOLDWARM Press OPEN key This goes to COMPLETE SEE ABOVE 46 Page 46 MXN276 3b doc iss01 ed a MEDIA MELTING CYCLE 100deg C for 30 Minutes 1 Minutes AirPurgeing 80Deg C Cooling Lock Assisted Cooling and Holdwarm 55C Select and Start the cycle Throughout the cycle the display shows Temperatures Times and other cycle stage information The stages are as follows HEATING TO STEAM 5 6 EG 0 0 Bar Heating To Steam
63. mperature is reached the water is discharged and the chamber then continues to cool until the Cooling Lock s are satisfied If the COOLING FAN option is fitted the fans will start at an appropriate temperature preset to just above 100C which may be adjusted HOLDWARM Some models are designed to operate with HOLDWAR M This will normally have been built in at time of order in the form of increased water reserve levels This should not be confused with a MEDIA MELTING or WARMING PROGRAM These models normally have an increased water level reserve The HOLDWARM system can be turned on in configuration mode BUT if turned on on a machine which is not provided with a increased water reserve then the holdwarm time may be limited to 1 2 hours or less The Holdwarm system is designed to allow sterilization of MEDIA loads with a holding stage during the cooling process that maintains the temperature of the load and chamber warm enough to permit pouring of the melted media On a suitable model The media will be kept warm for up to 8 Hrs The Autoclave may be set to operate overnight with a Media Load in the knowledge that it will contain a useable load when opened in the morning It is much better though to use the DELAYED START system to reduce media deterioration The Holdwarm temperature is automatically set to 25C below the Programmable Cooling lock temperature as set in the program Holdwarm if configured to be available ma
64. o perform calibration PX Chamber Pressure 3 point below ambient LZ Load sense Thermocouple Sensor Zero LS Load sense Thermocouple Sensor Span LX Load sense Thermocouple 3 point above 120C Pressing UP or DOWN will change the OFFSET value and this will change the indicated sensor Measured Value as the controller continually recalculates the Value to be displayed The Filter system means that there is a 5 second delay CALIBRATION The Calibration of the system requires special instruments and should not be attempted without a full understanding of the system and what calibration involves Further information is given in the ASTELL SWIFTCLAVE CALIBRATION INSTRUCTIONS available on request 41 before the reading stabilises The OFFSETS may be recorded on a label in the case front inside The calibrated value follows the equation Displayed value M x sensed value C x X MXN276 3b doc iss01 ed a M K x the Span Offset and C L x the Zero Offset K and L are constants X is the 3 point factor In the case of the 3 points For Temperature the figure modifies the slope of the curve above 120C This allows a correct calibration at 120C and at say 134C even if the calibration of the chamber is non linear due to heat losses For Pressure the 3 point value changes the slope for pressures between 0 and 1000 mBar Abs or below 0 barG The 3 point values offere a very fin
65. oling Lock setting B Pressure is above approx 1 5 p s i 0 2 Bar all Programs The Programmable Cooling Lock Temperature is set within each program But the PRESET cool lock temperature is a single setting applying to all programs The Cover is also Locked if POWER is OFF There is a delay of 30 seconds after pressing the OPEN button before the bolt pin retracts during which the VENT VALVE is open to atmosphere The Cover can only be opened by pressing the OPEN button and waiting for the bolt to unlock The OPEN button will NOT open the Cover if inhibited by the Cooling Locks or the pressure interlock The system will only start and run cycles if the Cover is fully CLOSED amp LOCKED It is not possible to pressurize the chamber with the Cover Unlocked Page 8 HEATING SYSTEM On Direct Heated models Steam is generated from water held in the base of the chamber WATER LEVEL CUTOUT The Electric Heating system uses an electrical immersion heater and a water level Conductivity sensors acts at Filling level Water is supplied from an internal tank and automatic Water Filling is provided as a function of the cycle A second water level Conductivity sensor detects LOW WATER state in the chamber MXN276 3b doc iss01 ed a AIRPURGEING SYSTEM Note Airpurgeing is the Term used here to describe an initial period of STEAM FLUSHING at atmospheric Pressure which uses the steam to displace the air from
66. p OVERSHOOT BOOST Chamber 75 6 C Pressure OQ OOBar Steriabize 152354 The temperature and pressure will fluctuate within 1 Deg C as the system controls at the set temperature The time counts down in Min amp Secs showing the Sterilize time remaining AT THE END OF THE STERILIZE PERIOD THE COOLING STAGES START COOLING stage A At the end of Sterilize period COOLING stage A begins Chamber 119 6 C Pressure O0 98Bar Cool Stage A lf ASSISTED FAN COOLING is fitted the cooling fans will start at a temperature of typically 100 105C This level is preset in the CALIBRATION of the machine amp may be adjusted The chamber and load cool until the pressure has fallen to a threshold level of typically 70 mBar above ambient The cooling then moves on to stage B COOLING Stage B The chamber and load cool until the complete conditions are met and MXN276 3b doc iss01 ed a Chamber 89 6 C Pressure 0 02 Bar Cool Stage B The 2 COOLING LOCKS prevent opening until the load has cooled to a safe handling temperature PRESET Cooling Lock This is the 0 100 Deg C thermostat at the back of the case It measures temperature of the outside of the chamber indicating an approximation to the load temperature PROGRAMMABLE Cooling Lock This is an electronic system set to a suitable temperature entered by the Supervisor within the Program Profile It measures and reacts to the temperature of the Inside of the ch
67. quence by using the UP amp DOWN keys to scan through the alphabet numbers and punctuation The existing Title is shown on the top line and each Character of the title is selected in turn and flashes when selected The character is changed using the UP amp DOWN keys Press the ENTER key to save that character and move to the next MXN276 3b doc iss01 ed a rogram 2 Title No w Enter Yes If the Title is less than 16 characters the balance of the 16must be made up with spaces When all have been entered there is a short delay while the title is stored Enter more Press No to return to READY STAGE Press a Yes to Enter More Programs 30 Page 30 SELECTOR LOCKED PROGRAM SELECTION The SELECTOR LOCK may be set to prevent the Operator changing the Program selection It is enabled in the User Configuration section When the OPERATOR tries to select a Program then the Program will not change and the display will indicate Selector is Locked ProgramLocked If the SELECTOR LOCK is ON the SUPERVISOR must select the Program which will be run by the Operator To Change the program for the Operator 1 Go to SUPERVISOR LEVEL 2 Answer YES to Enter Program 3 Select Program step through parameters You may change or leave them as they are This program will then be the one available toi the operator until this process is repeated for a different program MXN276 3
68. re adequate performance Suggested settings ranges SOLID LOADS Glassware Set the Airpurge period to 7 10 minutes LIQUIDS Set the Airpurge period to 7 45minutes WASTE DESTRUCT Set the Airpurge period to 7 45minutes k k AIRPURGE TIMES may be called FREESRTEAMING TIME Airpurge times longer than 35 minutes on a unloaded or lightly loaded chamber or open load containers which can collect and trap condensate from draining back down to the chamber base have the potential of boiling dry cause excessive heating in the condensate bottle and potential hazards from steam and condensation Please ensure loading matches the selected cycle 23 Page 23 Also Beware the effects of containers that trap water see earlier section re LOADING SELECT STERILIZE TEMPERATURE TIME The U K Medical Research Council recommended the following time temperature relationships for the achievement of sterilizing conditions zI i19 S uunulluilN zI i19 S wnuwixel H D 3 S D nyes dw PIOH ZIlli9 S wnwluiN Lower temperatures or shorter times may have to be used to prevent degradation of bacterial growth media This may be adequate for culture purposes but does may not constitute full sterilization The manufacturer of the media will usually specify the sterilizing temperature Temperature Tolerance Please note that during sterilizing the temperatur
69. st Cycle Report No a Yes Press Yes to display the log of the last cycle If the Printer is fitted then the log will be printed If not it will display on the screen and requires keypresses to step through the report one line at a time so that it may be written down The report comprises a list of the cycle details and the times at which the following stages started and ended Start cycle Start Airpurge End Airpurge Start Sterilize Period End Sterilize Period Complete It also includes faulty cycle indication 27 Page 27 MXN276 3b doc iss01 ed a Page 28 LOADSENSED TIMING Program Selection Note this is Only present if load sensed timing option is fitted and has been turned on in configuration Program 1 title Program 2 title Program 2 Title Loadsensed Time Program 3 title Program 4 title NO No w Enter Yes The display shows 4of the 10 program TITLES The examples given eg Program 1 Title etc Set On or Off are those preset in the factory but will normally as appropriate Press Enter represent a title understood by the user to move on 1 line Program Title eg Media B 1L flasks would be a typical title 2 line parameter These should have been chosen and entered by 3 line Yes or NO current setting the user or commissioning engineer 4 line set Yes or No and Enter One line will flash to indicate the chosen program here shown in white Program 2
70. stem will show a READY SCREEN similar to this The bottom line has a message scrolled across the display P2 Program Type PROGRAM TITLE READY 15 48 04 SELECT PROGRAM CSTART or COPEN 1st line Program Type eg Liquidload A 2 line Program Title as entered by user or installer 3 line READY stage name amp Time 4 line Scrolling message of what to do next Select Program Start or Open Method 1 Quick Select one of programs 1 2 3 or 4 PRESS KEY 0 6 or etc The Display will change to show the Parameters and BASIC Settings for the selected program note titles temperatures and times may vary from the examples shown here Liquidload A PROGRAM 7 TITLE 123 0C 15min 12 Page 12 METHOD 2 To select ANY one of the 10 Programs Press the ENTER button Program Program Program Program The display shows 4of the 10 program TITLES The examples given eg Program 1 Title etc are those preset in the factory but will normally represent a title understood by the user eg Media B 1L flasks would be a typical title These should have been chosen and entered by the user or commissioning engineer One line will flash to indicate the chosen program here shown in white Press the Up or Down buttons and the flashing line moves up or down the screen to select the different programs Program Program Program program When the lin
71. the chamber This may also be called FREESTEAMING The Program Profile control provides an adjustable period of AIRPURGE to ensure steam penetration in loads such as Petri dishes sample tubes etc with large numbers of trapped air spaces The temperature at which this starts is close to boiling point This can be adjusted to allow for altitude effects see calibration section STERILIZE TEMPERATURE CONTROL SYSTEM The Chamber Temperature Is measured by a PT100 precision sensor This is compared with the Sterilize Temperature the SETPOINT stored in the Program Profile and the controller acts to keep the chamber at or about that temperature by switching the heat source Control of temperature does not rely on steam pressure The actual temperature that the control system tries to attain for will be varied automatically at different parts of the cycle This does not require user attention during the cycle STERILIZE TIMING SYSTEMS a Standard Timing System This operates if LOAD SENSED TIMING option is not fitted or if fitted but it is not selected for this program Timing starts when chamber reaches set temperature and terminates sterilization at end of set period Temperature and Time are set within the program Heating Failure DROPBACK protection resets the Sterilizing timer should a fault cause the temperature to drop below the Sterilizing setting during the Sterilizing period When the temper
72. to Print or Show a copy of the report for the last fault that happened See FAULT REPORT section Supervisor Level WATER QUALITY No v a Yes Water conductivity indication Press No to move on WATER HI Press Yes to show the water quality figures WATER LOW Water Quality Figures MXN276 3b doc iss01 ed a Page 26 The two figures show the relative water electrical Only appears if Recorder Power Switching conductivity in arbitrary units in a form that option is incorporated and configured to operate Astell can use to advise you over possible water ality problems APER Supervisor Level SAFETY VALVE TEST Recorder Power Supervisor Level SafetyValve Test No v a Yes Confirm No v a Yes Press No v Press a Yes to move on The Next Program Run Will Perform The SafetyValve Test Press a Yes to Toggle ON or OFF the external recorder power switching incorporated with Astell Recorder Options or the VOLT FREE contacts used to control ASTELL Datalogger options permits changing of Charts testing etc Press a Y Ter era PROGRAM MENU Only appears if Printer Option is fitted Supervisor Level Answering YES will force the NEXT program PRINT MENU cycle to use a preset set of parameters specifically for testing the safety valve This runs at excess temperature and pressure a Yes Do Not Use except for Press No gt Press a Yes Safety valve testing to move on Pr
73. unning Calibrate will be available until the power is turned off With the chosen program running operate the Key and Clock buttons together to enter Running Calibration Mode The Calibrate system then operates as described earlier During this period the Timing functions continue to run and the Temperature Control system will operate as normally but TIMES will not be visible to the operator until the Calibrate Mode has been left Note extra adjustments are available it is possible to change the setpoint whilst running and or change the sterilize time When the last Calibrate value is entered Control will return to the normal Program MXN276 3b doc iss01 ed a CYCLE PROFILE EXAMPLES The Profiles that follow represent typical Cycles as may be supplied Factory Set These cycle profiles are given as illustrations only Actual cycles that are required for particular loads may well differ from the ones shown here Consult the associated Sterilizer manual for details of setting up the sterilizer for your particular requirements Each of the Controller Sequences associated with special features of the profiles are covered in detail at the end of this section FLUIDCYCLE 123deg C for 15 Minutes 10 Minutes AirPurgeing 80Deg C Cooling Lock MEDIA MELTING CYCLE 100deg C for 30 Minutes 5 Minutes AirPurgeing 80 C Cooling Lock with Holdwarm 55C MAKESAFE DISCARD CYCLE 134deg C for 30Minutes 10 Minutes AirPurgeing
74. y be selected on or off within the program profile Holdwarm appears as a stage between ASSISTED COOLING and COMPLETE When the Completion Conditions are met as described elsewhere in this manual the system then changes to Holdwarm stage During Holdwarm the display shows 10 Page 10 POWER ON STARTING UP AND DOOR UNLOCK SAFETY DELAY 30 SECONDS xSecs OPENING THE DOOR POWER ON When power is applied the system goes through a START UP PROCEDURE which displays the system settings Then it shows Press ENTER key to reset the system If the message is WAIT or KEYFAULT there is a stuck key on the keyboard consult service dept POWER ON PRESSCENTER Z The system then enters the OPERATOR MODE giving access to the following OPEN Open the chamber closure door START Start the selected Program LOAD CHAMBER CLOSE DOOR 0000 Quick Select one of the 1 4 Programs Enter Select a program 1 10 V or A Adjust settings P KEY D Selects Clock setting access to SUPERVISOR levels MXN276 3b doc iss01 ed a SETTING CLOCK Press CLOCK key amp Clock Setting uses Y A or ENTER keys to adjust the Hrs Mins Day Month amp Year At the moment when the Enter key is pressed after the Minutes entry seconds are reset to zero OPENING THE CLOSURE DOOR The door can only be opened when it is safe to do so There is a 30 second safety delay

MXN276 Swiftlock Autoclave Programmable Control

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