Astell MXN475 AMA 260 Swiftlock 80-300 Manuallitre

Powerscroft Rd Sidcup Kent DA14 5DT United Kingdom Tel +44(0)208 300 4311 Fax +44(0)0208 300 2247

SWIFTLOCK AUTOCLAVE

80-300Litre

INSTALLATION INSTRUCTIONS

OPERATING

INSTRUCTIONS

MAINTENANCE INSTRUCTIONS

SERVICE MANUAL

Complete Program Entry and Operating instructions for the Programmable Control System of this STERILIZER detailing Front-panel operation , Display and Keyboard are provided in a separate Astell Manual ;-Part No. MXN476

Part No MXN475 iss02 ed a

PDF created with FinePrint pdfFactory Pro trial version http://www.fineprint.com

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MXN475-2.doc iss01 ed B Page 1

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CONTENTS

2 • Log Book ,Machine Specification Document Issues

3 • Climatic Conditions

4 • Water/Steam/Drainage Condensate bottle; Exhaust; Safety valve, Filter inlet

• Drain Valve ; Driptray Drain ; Water Supply & Overflow ( optional Autofill)

6 • Electrical installation , Power Supply ; Recorder Power; Rating Plate

7 • Power Supply details

10 • OPERATING INSTRUCTIONS - Introduction

11 • SETTING PARAMETERS - Single-Program models- QUICK-ENTRY

12 • 8-PROGRAM OPERATION-SUMMARY Manual Water Fill Models

13 • 8-PROGRAM OPERATION-SUMMARY Manual Water Fill Models

• (With Load Sensing Timing Probes) 14 • 8-PROGRAM OPERATION-

SUMMARY Automatic Water Fill Models

15 • 8-PROGRAM OPERATION-SUMMARY Automatic Water Fill Models

• (With Load Sensing Timing Probes) 16 • 1-PROGRAM OPERATION-

SUMMARY Manual Water Fill Models 17 • 1-PROGRAM OPERATION-

SUMMARY Manual Water Fill Models • (With Load Sensing Timing Probes)



• (With Load Sensing Timing Probes) 20 • OPERATION - DETAILED REVIEW.

• Lid/Door Interlocks, Heating , Freesteaming &Timing , Sterilize & Timing

• Load Sensed Timing (Option) • Profiled Overshoot

• Load Simulators/Cooling locks • Cooling ( Water / Fast) ; Cooling Locks

• Programmable Cooling Lock

• Selection of Cooling Lock ; • Thermal Lag & the ‘dummy load’

22 • Cooling Locks and Operator Safety

23 • Media Holdwarm ; Delayed Start ; • ‘Normal’ and ‘Profiled’ Overshoot Boost

24 • Automatic Water Fill Option

25 • Filling with Water • - Models with Automatic Water Fill

Option 26 • Chamber Cleaning

• - Models with Automatic Water Fill Option

28 • Filling with Water • - Models with Manual water Fill

29 • Chamber Cleaning • - Models with Manual water Fill

30 • Water Quality

31 • Commissioning and Program Setting • Use of a Recorder or Datalogger for

commissioning cycles 32 • Setting Parameters for Standard

Cycles (Without Load-Sensed-Timing option. )

• Cooling Locks settings & Safety • (With Load-Sensed-Timing Option )

• Load Sensed Timing & Profiled Overshoot

• Cooling Locks settings & Safety With Load Sensed Timing Option

36 • PULSAR PAT ,pulsed freesteaming

37 • Load Containers and Loading • Cooling System

38 • Safety for Door Interlocks • [UK HSE. Guidance Note PM73]

39 • Periodic Maintenance • Safety Valve Testing

40 • Thermocouple Access Port and Load sensing Probes

• Recorders & Load-sensed Timing options

41 • Microbiological Air Filter

42 • Fuses, Overtemp Cut-out & Technical notes

43 • Overtemp & Overpressure cutout options

44 • Certificate Of Examination - Details.

45 • Power connection diagram

FSTERILIZERS ARE HAZARDOUS IF MISUSED

Do not operate this machine if unsure of operating procedures .




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INTRODUCTION The SWIFTLOCK range are modern, functional general - purpose laboratory AUTOCLAVE/STERILIZERS designed with ease of use in mind . They feature the proven SWIFTLOCK CLOSURE PAT system to give easy and rapid opening of the chamber, together with an easy-to use Single- or Multi-program control system, to facilitate a variety of uses.

GENERAL OPERATION AND LOG-BOOK

Although the historical safety record of laboratory STERILIZERS is good, remember at all times that they store considerable potential energy, and should be treated with respect and care. If correctly used and cared for, your ASTELL STERILIZER will provide long, reliable & safe service. Pay proper attention to regular maintenance. Never force the locking mechanism, or operate the machine with any leaks, or incorrectly operating parts. Report any defects to your Engineering/Supervisor. If deterioration or defects are noticed, record them in a log book and contact our Service Department . Record also the results of annual and periodic inspections. Every 4 to 6 weeks is recommended for periodic checks. Check the logbook before you start using the machine, as someone else may have recorded a fault of which you are not aware.

MACHINE SPECIFICATION AND CONTROL OPTIONS

The Control System Display will show various items of information when the Mains Power is turned on , for example... "SWIFTCLAVE STERILIZER" denotes STERILIZER Type "ELECTRICAL HEATING" or "STEAM HEATING" "SOFTWARE ISSUE No. xyz" "PRINTER SELECTED" "PROGRAM SELECTION BY SUPERVISOR ONLY"....etc. Please keep a note of these displays ; You may be asked to quote these to assist the Astell service dept. if requesting service dept. attention .

DOCUMENT ISSUES AND DETAILS

Date & MR no

Issue Ed. FILENAME

Details of changes and revisions inc. software issues and associated manuals

200201 mr3279

0I A MXN475-1.doc Der from mxn455 ,488 etc for new membrane & 408 on see also mxn476

B MXN475-1.doc Text corrections A MXN475-2.doc Text corrections




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CLIMATIC CONDITIONS AND SPECIFICATIONS Storage of this product in cold or damp conditions may lead to a Hazard or operating faults if the equipment is put into service before it has dried out and achieved equilibrium with the surroundings of the operating site. Place in the area where it is intended to use the equipment. Do not connect to a power supply. Allow 48 Hrs to reach Humidity Equilibrium.

CLIMATIC CONDITIONS OPERATING

Permitted Humidity not exceeding 75% mean non-condensing. Permitted Temperature range 0-40 C Do not site the equipment in an area where there are significant quantities of dust. this will gather on the electronics and cause malfunction. Do not site the equipment in an area where Spray or fumes from other equipment may touch the cabinet or cooling vents. Do not hose down or wash the equipment. The electronics system is not protected against jets of water.

STORAGE Permitted Temperature range -10 / +70 C Humidity not specified but an equalising time is required- see above.

BATTERY BACKUP

Data retention - Main system EEprom . No Battery Required Real-time Clock ( in Printer Option ) Nicad Rechargeable battery Soldered In.

(Maintains date/time operation when turned off. Not used to store data.)




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WATER & STEAM SERVICES & DRAINAGE PIPEWORK CONNECTIONS.

1] The Swiftlock Autoclave Chamber Exhaust must be connected to a suitable Building Drain to carry away condensate.

2] A Steam Vent is required to exhaust the steam produced during the Heatup and Freesteaming parts of the cycle.

3] The Safety Valve exhausts into the room.

4] Electrically Heated models require a supply of cold Mains water. and provision for the Autofill tank Overflow / Warning Pipe.

5] Electrically heated models are provided with a Chamber Cleaning Drain which may be connected to the Building Drain .

6] Steam heated models require a supply of steam .The Condensate Drain should be connected to the building drain .]

PIPEWORK CONNECTIONS. and installation details A] EXHAUST The exhaust outlet will produce steam and condensate. Connect the outlet pipe to a suitable drain using the largest pipe bore available, provided with a suitable air vent to the outside above the level of the machine to vent the exhaust steam, and to avoid air locks which may result in contaminated effluent being drawn back during cooling. The Drain pipework must be capable of carrying condensate at temperatures up to about 80C, and the Exhaust Vent pipework must be able to withstand 135C. If pipework will not withstand the temperatures involved the manufacturer cannot accept responsibility for any damage that may be caused by hot exhaust gases or condensate. (See Below. ) Installation to Plastic Drainage Systems; A range of Steam Quench and Cooling boxes is available Factory-fitted to the rear of the machine, which automatically cools the hot exhaust to below 45 C using Cold Mains water . If one of these has been supplied please install according to the separate instructions supplied. PULSE FREESTEAMING OPTION !!! WARNING !!! If this option is fitted or configured Installation to Plastic Drainage systems, or the Astell range of Quench /Cooling boxes is not possible without danger to premises or personnel. Operation in such an installation constitutes misuse and the manufacturers accept no liability for the effects of such action, and reserve the right to withhold warranty provisions for parts concerned with the Chamber or steam system . B] EXHAUST VENT Separate Vent is strongly advised , but where no separate vent-pipe can be provided, the connection to the drain must include an air-break to avoid back-suction. C] SAFETY VALVE The Safety-Valve exhausts vertically downwards at the rear of the machine close to the floor. When it operates a large volume of low-velocity steam will be produced .

The Safety-Valve must not be connected to any other pipework or altered . Please see other references in this manual to SAFETY-VALVE TESTING. D] AIR INLET / FILTER one of two types are supplied;- The filter allows clean filtered air into the chamber as it cools. Please See page 47 Type 1 ; This uses a Silicone rubber tube with plastic push-on fitting provided to fit the ASTELL. Disposable bacteriological Air-filter . The filter is held in the spring clip fixed to the Access Cover Plate.




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Type 2 This is a 1/8 BSP screwed inlet socket sited behind the Cover Plate on the right-hand Side . A screw-fit Disposable bacteriological Air-filter is available which may be screwed into the socket, E] DRAIN VALVE - Electric Heated Models ONLY The Drain valve permits the Chamber to be drained for cleaning purposes. This is at the rear of the autoclave fitted with a lever action hand-valve. The valve is shut when the handle is at RIGHT-ANGLES to the pipe. This should be arranged to allow the chamber to be drained regularly. It may be plumbed into a drain or tundish. KEEP CLOSED DURING USE & DO NOT OPEN WHEN HOT OR PRESSURIZED.

F] STEAM INLET.. Steam Heated Models Only This is a 3/8" BSP Screwed Gun-Metal Union. The steam supply should be connected to the gunmetal union. The autoclave is NOT fitted internally with a pressure reducing valve, and steam supply pressure must be reduced to 3.04 Bar maximum.[ 44 P.S.I.G /304 kPa) with a suitable Pressure Reducing Valve before reaching the autoclave. It is important to fit a pressure gauge into this supply line, after the pressure reduction valve, which will indicate actual steam pressure available to the machine . A condensate draining steam trap must be fitted immediately upstream of the autoclave, to remove all condensate as Free Water will stop Sterilizing action.

Steam Supply Problems;- A common fault with installations is that long pipe runs, poor layout or poor steam quality fill the autoclave Chamber up with water. This will be avoided if attention is paid to Condensate separation. Ensure that the steam supply flow is adequate to feed the machine when operating - The steam pressure in the line will fall when the machine is HEATING UP or FREESTEAMING. SUPPLY CONDENSATE RETURN SYSTEM The steam Supply line must be properly installed. If provision is not made to automatically drain off the condensate that forms in the supply line the autoclave will draw in large quantities of water. this will stop the Sterilising action, and may cause damage. Warning ; On new steam systems or those that have cooled beware condensate build-up in lines which may cause water hammer & damage valves and instruments. Correct installation and Steam Trap arrangements will avoid this. G] STEAM DRAIN OUTLET ( Chamber Condensate ) On Steam Heated Models the Chamber is fitted with an Automatic Chamber Drain. The outlet from this is the small diameter COPPER pipe at the bottom rear of the machine. It should be connected to a suitable building drain capable of carrying steam condensate ( at up to 134C ) Connection into the boiler-house condensate return is not advisable due to the possible bacteriological contamination of returned condensate if any of the load contaminates the inside of the machine. This outlet should be connected via an air-break to prevent back-suction. H] DRIP-TRAY DRAIN (, Not present on Vertical models. Fitted only to Front-Load models and Non-Standard Electrically Heated Front-Load Models) This is a separate plastic pipe emerging from the rear of the machine, which carries away water that trickles into the driptray beneath the door. It should be led to a suitable drain (Below the level of the Driptray.) Do not connect to the Autoclave drain, without a suitable U-Bend or similar, as this may cause blow-backs if pressure develops in the drain . As this water is generally clean, a simple loose connection to a separate drain will suffice or a bucket or container may be sufficient. J] AUTOFILL & WATER-COOLING MAINS WATER INLET This is a Plastic Coloured Hose with a 3/4 BSP Female Threaded tap connector similar to a Washing Machine Inlet Hose. This should be connected to a Cold Water Mains Supply , Minimum 0.3 Bar , Maximum 6 Bar pressure. Max Flow rate required 20 litres/minute. This supply Must be provided with a Shutoff Valve ( a Washing-Machine-Isolator Valve is suitable ).




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K] AUTOFILL TANK OVERFLOW / WARNING PIPE This is a White Polypropylene 20mm pipe which projects from the rear of the machine and will carry overflow water if the Level in the Autofill tank is too high. It should be fed to an open Tundish or drain.;- U.K. Water Research Council and the U.K. water byelaws require Warning pipe outlets to be visible to the operator.




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POWER SUPPLY INLET CABLE

SWIFTCLAVE STERILIZERS are supplied optionally with a fitted Power Supply Cable. Steam heated Machines have a CEE22 type Power Inlet cable and plug. Electrically heated machines are supplied with a 5-core or 3-core ready-fitted mains supply cable provided with a standard -type Industrial High-Current plug. The Cable is of the heavy-duty SY type, Double-Vinyl covered and protected by a woven metal braid. (Models for 220V 3-phase supplies may have alternative arrangements.) The STERILIZER has been tested in the configuration in which it is delivered from the factory. Details of the Supply Voltage and the Current rating, etc are given on the Serial-Number / Rating Plate attached to the machine. Cable Alteration Should it be necessary to Fit or alter the supply cable to suit local regulations or arrangements , the new power supply cable should be arranged in flexible conduit or use similar suitably protected power cable rated to carry the Maximum Current per Phase for 3-phase machines, and 5 Amps {Single Phase} for Steam Heated machines. The connections are made to Terminals in the Power Input Box. The Cable should pass under the lower edge of the rear panel, or through the cutout provided below the Power Input Box, allowing the panel to be removed for access.

This machine must be wired with a protective earth.

RECORDER POWER FEED

The recorder options include an automatically controlled 240 Volts 1 Amp power outlet via a CEE22 Outlet connector. This is intended to power ONLY an Astell approved Recorder System. Instructions for use are provided with the Recorder option. Some versions may use a different connector and the output may also include remote control low-voltage signals.

Do Not Connect Any Other Equipment To This Outlet .

VOLTAGE RATING PLATE Before attempting an installation, consult the SERIAL NUMBER / RATING PLATE fitted to the machine which gives supply type and voltage requirements

ELECTRICALLY HEATED MODELS

Consult the SERIAL-No./ VOLTAGE RATING PLATE Sited at the rear of the machine, or on some models , near the front to one side. The STERILIZER is normally delivered with the supply arrangement to suit the voltage and supply specified at the time of ordering. Should the Power Lead need to be altered, Appendix 1, figures show how the 1 or 3-phase supply is connected to the terminals in the power input box. Several models are available, With different Heaters and Supply wiring. Check the Power Rating on the Rating Plate and refer to the details below:

[ PLEASE NOTE .. Voltages given are measured phase-to-phase. ]

SWITCHED FUSED SUPPLY ISOLATOR The Power must be fed from an EXTERNAL SWITCHED FUSED ISOLATOR .This must be sited within 1 M of the machine. Astell STERILIZERs for 380-440 V 3-phase supplies may be supplied with a fitted power lead nominally 2.5 M long ready-wired to a High-Current IEC power plug. The Site should be provided with a Power Outlet socket to match the power connector. The following connector types are fitted - Where a mains cable is not supplied fitted please see the drawings at the rear of this manual.




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Fitted Mains Lead Wire Colours

3-Phase STERILIZERs

Earth Phase1 Phase2 Phase3 Neutral Green/Yellow Brown Black Black Blue

Single-Phase STERILIZERs Earth Line/Live Neutral Green/Yellow Brown Blue The Screening/Braid of the Armoured cable is earthed at the STERILIZER end. If the cable is shortened, Cut the Plug end . Leave the STERILIZER end untouched or restore earthed Braid connection.

Fuse or Contact-Breaker Trip Current Ratings- The Supply ratings of the Electrically Heated models are given on the RATING PLATE at the rear of the sterilizer. . If You are unsure please contact ASTELL or the supplying agent. 200-220V 3-Phase supplies ( with option AAN110 or AAN111) Please note that the supply ratings for these models are approximately double the current ratings of the 380/415 volt versions, typically 60A/Phase

Power Supply Connections/ Supply requirements

Consult the SERIAL-No./VOLTAGE RATING PLATE Sited at the rear of the machine, or on some models , near the front to one side. The STERILIZER is normally delivered with the supply arrangement to suit the voltage and supply specified at the time of ordering. The Power Lead is not part of the machine as certificated for compliance with the EMC directive. Inside the Power Input Box are Suppressors and capacitors essential to the EMC performance of the control system electronics which must not be modified or removed. Should the Power Lead need to be altered any changes must be carried out as detailed below and no modifications or substitutions of parts made inside the STERILIZER Power Input Box. The Power must be fed from an EXTERNAL SWITCHED FUSED ISOLATOR . This must be sited within 1 M of the machine.




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380/440 VOLT 3-PHASE SUPPLY

These use 220/230v heaters connected in STAR formation between the 3 Phases and Neutral. The three pairs of Heater wires are brought to the terminal block in the POWER INPUT BOX , labelled as follows: Wires No 04, 05, 06 or red, yellow, blue group [0] =Heater (NEUTRAL)#1,2,3 Wires No 01,02,03or red,yellow, blue group [3] = Heater (FEED)#1,2,3

POWER SUPPLY CONNECTIONS 380-440 Volt 3-Phase: 16Kw & 12 Kw models with Red-Yellow-Blue power wiring Power Supply is connected as shown in Appendix 1, Fig.6. NOTE..THE NEUTRAL LINE MUST NOT BE FUSED.

MODELS FOR 200/240 VOLT 3-PHASE SUPPLY Export Models For Countries Where Domestic Supply Is 110v Line - Neutral

This Voltage Operation is denoted by Order Code AAN110 or AAN111. These models are not normally supplied with a fitted power supply cable. Connect the Power Supply as shown in Appendix 1, Fig.6. In these models the heaters are the standard (240 volt), 3.3, 4 or 5.2 KW types, wired to operate in 3-phase DELTA formation. The heater wires are brought to the Contactor in the Power Input Box and are labelled:- Wire No. 04, 05, 06 or Red,Yellow,Blue Group [3]= LINE B for Heater #1,2,3 Wire No.01,02,03 or Red,Yellow,Blue Group [0] = LINE A for Heater #1,2,3 The Heaters are wired in the factory Phase-To-Phase as in Appendix 1, Fig. 2 A BALANCED NEUTRAL SUPPLY MUST BE PROVIDED The internal electronics and control actuators operate from 240 volts supplied by a step-up internal transformer between Phase 1 and Neutral. 3-Phase Motors are normally dual voltage, wired in delta formation for 200-220v. Single-phase motors are normally 230V motors wired between two phases. These have fuses in each supply line.

200-220v 3-PHASE SUPPLIES WITHOUT NEUTRAL This is option AAN111 . It is electrically as option AAN110 , but requires no Neutral supply. Connect as described above but omit the Neutral connection. The internal electronics uses a 220V supply derived from two Phases @ 200-220v via an internal Isolating Transformer.

CONVERSION It is possible to convert from 380-440 v to 200-220 v supplies or in reverse. This requires the fitting of a special transformer unit and detailed wiring changes, and requires the services of a factory-trained qualified engineer.

POWER SUPPLY CONNECTIONS SINGLE PHASE SUPPLY 7 KW SINGLE-PHASE USE

Certain of the The 380/440 volt 3-phase 10kW models may be arranged to operate at reduced power {7Kw} from a 220/240 volt 30/32 amp single-phase supply . If requested at the time of order the power supply will be connected for single-phase 230 Volt operation. The earth, live and neutral feeds should be capable of carrying 32 amps, and be fed from an EXTERNAL SWITCHED, FUSED ISOLATOR, with fuses rated at 30 or 32 AMPS. This equipment must be earthed... The neutral line should not be fused unless local electrical standards specify this. To use a (10Kw) "3.3Kwx3" 380/440V 3 phase. autoclave from a Single-Phase supply only two of the heaters are used to give the 7Kw, the third (H3) remaining inoperative. NOTE This does not apply to any models for .200/240 volt 3 Phase and 380-440 v ,

12KW or 16 Kw models . These are suitable for 3-phase supplies only. Connect as the drawing Appendix 1 fig 1 at the rear of this manual




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OPERATING INSTRUCTIONS The following pages set out the Operating instructions in both "Short-form notes form" which can be copied and affixed to the wall near to the autoclave , and in a fully detailed version. Because of the different versions of the Swiftlock which operate in a similar but slightly different manner, the Short-form notes are provided for models with different combinations of features. Single-Program and 8-Program Autoclaves have identical operating procedures, but on the Single-Program models, the program parameters are set as required for each different operation of the autoclave, whereas on 8-program models, the 8 Programs will have been Preset by the Supervisor or engineer, and the user only needs to select the correct program by pressing buttons [1] to [8]. Full details of the Program Entry Procedure are provided in the Astell Manual for the Swiftlock Programmable Controller Part no MXN476 Parameter Setting for the single-Program models is carried out Either:- a) by the same method as for 8-Program models, using the Key and entering the values in "Supervisor Mode" . {This method is useful where the user is not permitted to change the settings.}

, or ;- b) Quick-Entry mode , where the Program Settings are entered without the need of the supervisor Key. The Supervisor may select which mode is to be used - for details please see the "Swiftlock Programmable Controller" manual. The Quick-Entry mode is given on the next page. This may be copied and fixed next to the operating notes. This Autoclave Is designed and intended for a very wide range of loads and process cycles. It is not possible in this manual to encompass every possible cycle or load requirement that may be encountered. General principles are provided , with a selection of examples and explanations. It is to be expected that a certain amount of experimentation may be required before the most suitable process cycle or method of loading can be arrived at. Astell Scientific and approved agents are able to offer advice and assistance in setting up and commissioning this Autoclave. Please consult Astell Scientific or your supplier if necessary




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Astell Swiftlock 80-300Litre models SETTING THE PARAMETERS ON SINGLE-PROGRAM MODELS

QUICK-ENTRY MODE

It is only necessary to enter settings to be altered - the program will "remember" the values and selections until they are changed by the operator. Close and Lock the cover ;- this puts the Autoclave in "READY" mode The Display shows ( for example;= )

Sterilize @ 123C; 15m Query - - - - - - - - -

The bottom line will "scroll" through a selection of messages Press

Sterilize Temperature

Enter desired TEMPERATURE using up/down buttons and press [ENTER] Press

Freesteam Time

Enter desired FREESTEAM TIME using up/down buttons and press [ENTER] Press

Sterilize Time

Enter desired STERILIZE TIME using up/down buttons and press [ENTER] Press

OPTIONS

Enter required YES/NO or settings for the following & Press [ENTER] after each to go on to the next parameter. Options provided may vary - Example of options are;- Load Sensed Time Yes/No? ( Only if Load Sensing option fitted) Media Holdwarm? Yes/No? Cooling Lock - Set Programmable Cooling Lock temperature, e.g. 80C In the Operating Instructions that follow , instructions for selection or setting of Programs may , in some places assume that the machine is a 8-Program model. If your Swiftlock is a Single-Program model, all references such as "....select program number..." should be disregarded .




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SWIFTLOCK 80-300Litre 8- PROGRAM AUTOCLAVE

OPERATION - SUMMARY Manual Water Fill Models Without Load Sensing Timing Probes

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Select Program 1, 2, 3, 4 Press "Query" if necessary to find out program settings. 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Top-up water until display indicates [ Water Level OK ] 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10

seconds, and the Cover will re-lock. 15. After this , to OPEN , just press '[OPEN]' button again . 16. After unloading autoclave always leave Cover slightly open when not in use

to avoid compressing and damaging gasket.

CLEANING - WARNING;- CLEAN OUT THE CHAMBER REGULARLY, AS WATER CONTAMINATED WITH SPILT LOAD CONTENTS WILL CAUSE FAILURE AND MAY BURN OUT HEATERS OR BLOCK DRAINS.




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SWIFTLOCK 80-300Litre 8- PROGRAM AUTOCLAVE

OPERATION - SUMMARY Manual Water Fill Models WITH LOAD SENSING TIMING PROBES

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Select Program Number Press "Query" if necessary to find out program settings. [ Note whether Load Sensed Timing is set for this Program ] 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Top-up water until display indicates [ Water Level OK ] 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. If the Cycle requires use of the LOAD SENSING PROBE, Either;- [a] Place Load Sensing Probe in position in centre of load with thickened end well clear of load material to permit removal at end of cycle. or [b] check that Load Sensing Probe is positioned within Load Simulator If it does NOT require use of the Load Sensing probe, place the probe safely to one side of the load or on the shelf. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10

seconds, and the Cover will re-lock. After this , to OPEN , just press '[OPEN]' button again .

15. After unloading autoclave always leave Cover slightly open when not in use to avoid compressing gasket and place the LOAD SENSING PROBE safely inside to avoid damage should it be trapped in the door..

CLEANING - WARNING;-

CLEAN OUT THE CHAMBER REGULARLY, AS WATER CONTAMINATED WITH SPILT LOAD CONTENTS WILL CAUSE FAILURE AND MAY BURN OUT HEATERS OR BLOCK DRAINS.




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SWIFTLOCK 80-300Litre 8-PROGRAM AUTOCLAVE

OPERATION - SUMMARY Automatic Water Fill Models Without Load Sensing Timing Probes

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Select Program Number Press "Query" if necessary to find out program settings. 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Display will show "AUTOMATIC WATER FILLING" .& during the time with door open the AUTOMATIC FILL will fill the Chamber with water to the correct level. 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY-PROGRAM x ] 10. Wait until Display shows "WATER LEVEL OK" , then Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10


to avoid compressing and damaging gasket.





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SWIFTLOCK 80-300Litre 8-PROGRAM AUTOCLAVE

OPERATION - SUMMARY Automatic Water Fill Models WITH LOAD SENSING TIMING PROBES

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Select Program Number Press "Query" if necessary to find out program settings. [ Note whether Load Sensed Timing is set for this Program ] 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Display will show "AUTOMATIC WATER FILLING" . During the time with door open the AUTOMATIC FILLING will fill the Chamber to the correct level. 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. If the Cycle requires use of the LOAD SENSING PROBE, Either;- [a] Place Load Sensing Probe in position in centre of load with thickened end well

clear of load material to permit removal at end of cycle. or [b] check that Load Sensing Probe is positioned within Load Simulator If it does NOT require use of the probe, place the probe safely to one side of the

load or on the shelf. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Wait until Display shows "WATER LEVEL OK" , then Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10


15. After unloading autoclave always leave Cover slightly open when not in use to avoid compressing gasket and place the LOAD SENSING PROBE safely inside to avoid damage should it be trapped in the door.





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SWIFTLOCK 80-300Litre SINGLE- PROGRAM AUTOCLAVE

OPERATION - SUMMARY Manual Water Fill Models Without Load Sensing Timing Probes

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Adjust Temperature,Times,and Options as required Press "Query" if necessary to find out program settings. 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Top-up water until display indicates [ Water Level OK ] 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10


to Avoid compressing gasket.





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SWIFTLOCK 80-300Litre SINGLE- PROGRAM AUTOCLAVE OPERATION - SUMMARY

Manual Water Fill Models WITH LOAD SENSING TIMING PROBES

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Adjust Temperature,Times,and Options as required Press "Query" if necessary to find out program settings. [ Note whether Load Sensed Timing is SET for this Program ] 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Top-up water until display indicates [ Water Level OK ] 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. If the Cycle requires use of the LOAD SENSING PROBE, Either ;- [a] Place Load Sensing Probe in position in centre of load with thickened end well clear of load material to permit removal at end of cycle. or [b] check that Load Sensing Probe is positioned within Load Simulator If it does NOT require use of the Load Sensing probe, place the probe safely to one side of the load or on the shelf. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If 'Open' button is pressed and Cover is not opened it will cancel after 10

seconds, and the Cover will re-lock. After this , to open , just press '[OPEN]' button again .

15. After unloading autoclave always leave Cover slightly open when not in use to avoid compressing gasket and place the LOAD SENSING PROBE safely inside to avoid damage should it be trapped in the door..






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SWIFTLOCK 80-300Litre SINGLE-PROGRAM AUTOCLAVE OPERATION - SUMMARY

Automatic Water Fill Models Without Load Sensing Timing Probes

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Adjust Temperature,Times,and Options as required Press "Query" if necessary to find out program settings. 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Display will show "AUTOMATIC WATER FILLING" .& during the time with door open the AUTOMATIC FILL will fill the Chamber with water to the correct level. 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY-PROGRAM x ] 10. Wait until Display shows "WATER LEVEL OK" , then Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10


to avoid compressing gasket.





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SWIFTLOCK 80-300Litre SINGLE-PROGRAM AUTOCLAVE OPERATION - SUMMARY

Automatic Water Fill Models WITH LOAD SENSING TIMING PROBES

1. Check that 'POWER' LED is ON 2. Display must be in [ READY ] mode if Cover is locked. 3. Adjust Temperature,Times,and Options as required Press "Query" if necessary to find out program settings. [ Note whether Load Sensed Timing is set for this Program ] 4. Press '[OPEN]' Button. After 30 seconds the bolt will unlock . 5. Turn Handle Anticlockwise, open door through Two-Stage Gate. 6. Display will show "AUTOMATIC WATER FILLING" . During the time with door open the AUTOMATIC FILLING will fill the Chamber to the correct level. 7. Check Gasket. .Check Water Level in Condensate Bottle- This must be between Max. and MIN marks. If not empty and refill to MIN. 8. LOAD AUTOCLAVE. If the Cycle requires use of the LOAD SENSING PROBE, Either;- [a] Place Load Sensing Probe in position in centre of load with thickened end well clear of load material to permit removal at end of cycle. or [b] check that Load Sensing Probe is positioned within Load Simulator If it does NOT require use of the probe, place the probe safely to one side of the

load or on the shelf. 9. CLOSE Cover and rotate handle CLOCKWISE to lock. Display changes to [ READY ] 10. Wait until Display shows "WATER LEVEL OK" , then Press 'START' Button. 11. Program will begin. HEATING will start 12. When Display Shows [ COMPLETE ] at end of cycle, press '[OPEN]' 13. When Display shows [ UNLOCKED ] rotate Cover or handle to Open. 14. If '[OPEN]' button is pressed and Cover is not opened it will cancel after 10


15. After unloading autoclave always leave Cover slightly open when not in use to avoid compressing gasket and place the LOAD SENSING PROBE safely inside to avoid damage should it be trapped in the door.






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OPERATION DETAILED REVIEW

The operating system comprises the following features:-

1. PROGRAMMABLE PROGRAM CONTROL SYSTEM, This provides 4 or 8 - programs of adjustable Freesteaming & Sterilize time, Sterilize Temperature, Cooling mode and selection of Cooling locks. 2. LID CLOSURE SYSTEM WITH INTERLOCKS. Lid can NOT be opened if:- Chamber Temperature is above Programmed Cooling Lock setting, Chamber Wall temperature is above 'Cooling Lock' setting and Pressure is above approx. 1.5 p.s.i. The Programmable Cooling Lock is adjustable within each of the programs. The Cover is also Locked if POWER is OFF. There is a delay of 30 seconds after pressing the '[OPEN]' button before bolt retracts during which a VENT VALVE is open to release any residual pressure. 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 operate if the Cover is fully CLOSED & LOCKED, It is not possible to Heat the chamber with the Cover OPEN. 3. HEATING SYSTEM: (a)Electric Heating ;- This uses 3, 4 or 5.25 Kw Nominal electrical immersion heaters in sets of 3 protected from boil-dry by water level ‘Conductivity’ sensors acting at two levels, ‘Filling’ and ‘Running’ . Automatic Water Filling is built-in or (b) Direct steam injection Heating from a Steam Supply. 4. STERILIZE TIMING SYSTEM : a] STANDARD TIMING SYSTEM;-

This operates if LOAD SENSED TIMING options 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 temperature rises again the timing restarts. The fixed dropback level is 2 C below set temperature,

5. b] LOAD SENSED TIMING Optional Extra See also "LOAD SENSED COOLING LOCK" on page 14/15 LOAD SENSED TIMING is selectable (on or off) within the Program. A "threshold" is set automatically within the 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 by the user within the load or load simulator). During the part of the cycle "HEATING-TO STERILIZE" , the load heats-up slower than the chamber. The Chamber reaches set temperature first, and is maintained there by the controller. During this period the Sterilizing temperature is held at 2 or 5C above the set sterilizing temperature When the rising temperature in the load reaches the threshold ,this is sensed and the Sterilizing Timer System starts , The Chamber Temperature falls to a new controlled level around 0.3C above Sterilizing Temperature . Display changes to show "STERILIZING" with the normal time count display. 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.




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IT IS MOST IMPORTANT THAT THE LOAD SENSING PROBE IS ALWAYS PLACED IN THE LOAD .OR STERILIZING WILL NOT TAKE PLACE! USE OF "LOAD SIMULATORS" WITH LOAD SENSED STERILIZE TIMING These may be used in front-loading models ; If it is possible to restrict the LOAD Sensed Timing to one type of load, then a Simulated Load can be arranged , to mimic the behaviour of the real load, but with the advantage that the LOAD SENSING PROBE can be left fixed in place in the simulator . LOAD SIMULATOR SENSING IN PLACE OF "TRUE" LOAD SENSING The basic Load Simulator comprises a short Stainless shelf or basket that fits at the rear of the chamber on FRONT LOADING models. This supports a sample bottle or container (as used in the load) which is filled generally with Liquid Paraffin, Glycol, Silicone oil, or any other non-volatile liquid with a similar specific heat to the load material. The Load Sensing Probe is positioned in the container to sense the temperature of the simulator, and give an approximation to the load temperature. NOTE;- The LOAD SIMULATOR is an additional optional item and should not be confused with the DUMMY LOAD which has a different function and. This is fitted as standard to ensure safest operation of the COOLING LOCK for all likely load types and affects the Temperature Sensor that operates the PRESET Cooling Lock. STERILIZING TIMING "DROPBACK" WITH LOAD SENSING SELECTED Refer to "Dropback" on page 13 The Dropback Function operates if the LOAD TEMPERATURE drops 2 C below Sterilizing Temp., once sterilizing has begun and resets the Sterilizing timer. 6. COOLING SYSTEM: The Cooling System is supplied in two versions- Basic Cooling and Deluge Cooling. Basic cooling uses circulated cold water in a chamber coil or jacket. Deluge Cooling circulates the chamber water through a pump and heat-exchanger and sprays it over the load. Cooling operates with Air Ballasting. 7. COOLING LOCKS The Cooling Locks prevent the STERILIZER opening under unsafe conditions. There are two cooling lock sensors. PRESET COOLING LOCK This is a thermostatic device with Dial & scale. On VERTICAL models it is mounted on the side of the cabinet behind a cover panel, On HORIZONTAL models it is at the rear behind a cover plate secured by two screws, or on some models behind a drop-down top section of the rear panel. It is calibrated in Deg.C(+/- 5C), and measures the temperature at the outside of the chamber wall. The Preset cooling lock responds to the temperature of the chaamber wall which acts as a thermal mass. & cools in a similar way to the real load . The temperature in the chamber wall and real loads will not be the same during cooling, due to differing thermal masses and Thermal inertia. PROGRAMMABLE COOLING LOCK. When LOAD SENSING option is NOT selected. The Release Temperature threshold is set within the Program and is compared with the CHAMBER TEMPERATURE SENSOR. When the CHAMBER temperature is above this threshold the lock is active (engaged) and Completion is inhibited stopping the door from unlocking.. As the CHAMBER sensor detects the temperature within the steam space it will always Heat or Cool faster than the load or the "Chamber Wall”. LOAD SENSED COOLING LOCK ( LOAD SENSING OPTION fitted & selected ) In this case the Programmable Cooling Lock Temperature set for the Program is compared with the Temperature measured by the LOAD SENSING PROBE. When the sensed Load temperature is above this threshold the Cooling-lock is active (engaged) and Completion is inhibited , so the door cannot be unlocked. As the LOAD SENSING PROBE detects the temperature within the LOAD itself , it will always represent the actual load temperature. DOUBLE COOLING LOCKS The PRESET cooling lock , (sensing the Chamber Wall ) is always operative , so the temperature of both of ACTUAL LOAD and DUMMY LOAD must be below the set thresholds to allow the cycle to complete.

SELECTION and SETTING OF A COOLING LOCK




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Cooling Locks are designed to prevent the chamber from being opened when the load is at a temperature that would be dangerous to handle. It is generally accepted that FLUID LOADS should not be handled above 80C. , although in special cases this temperature may be exceeded. Fluids in SEALED CONTAINERS present a severe hazard, as they are explosive if the temperature of the liquid contents is much above boiling point and at atmospheric pressure . During cooling inside the chamber, Whether Fast Cooling is selected or not the load cools naturally to 100C, and the load tracks the chamber temperature and pressure , avoiding flash boiling. Safety Note:- If the Cooling lock is set to allow the door to be opened at 80 C or below, operator safety is improved. Use Insulated Liquid-Proof Gloves whenever handling HOT LOAD CONTENTS The Preset cooling lock is a Hydraulic Thermostat & CANNOT be turned off. It can be set to max.of 100 Deg C if required to minimise the delay in Completion. The Programmable Cooling lock CAN be turned OFF within the Program but should preferrably be set to a safety " UNLOCK" temperature determined by trial-and-error or by measurement with a suitable electronic thermometer. If the LOAD SENSING option is fitted, and LOAD SENSING has been selected within the Program, the LOAD SENSING COOLING LOCK will operate. It is advisable to set the Preset Cooling lock Dial to 80-100C and set the Programmable Cooling lock Temperatures for each FLUID load to temperatures at or lower than 80C. Fabric or Solid loads, may be processed with the Programmable Cooling lock set to 99C within that particular program which effectively turns it off.

Cooling lock settings must be determined & set by the user




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MEDIA HOLDWARM

SETTING MEDIA HOLDWARM Media Holdwarm is a function that may be selected as On or Off in the program. (in the OPTIONS section on Single-Program models.) It adds a stage after "COOLING " and before "COMPLETION" , which maintains the temperature of the chamber, and hence the load, warm enough to permit Media to remain in the liquid state and pourable. The temperature that the Chamber maintains during Media Holdwarm is automatically 25 Deg. C below the programmable cooling lock temperature for the program. For it to operate, the programmable cooling lock Cooling Lock Temperature must be set appropriately. 80 Deg. C will produce a Holdwarm temperature of approximately 55C.

EXITING from MEDIA HOLDWARM To Exit Media Holdwarm press the [START] or [[OPEN]] button. Wait for the cycle to finish ,until the Complete message shows and then press the [[OPEN]] button again to unlock the door. The action of the control system during Holdwarm is such that a temperature fluctuation of about 8 Deg C will be present in the chamber, as it heats up quickly and cools slowly. This will not affect the media load. The Holdwarm system has been tested to operate for over 24 hours . The only limit on duration in this mode is the water reserve, and as very little water is consumed, this will last for a long time. All interlocks and safety provisions are maintained in this operating mode.




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- MODELS with AUTOMATIC FILLING OPTION The Machine requires a supply of mains cold water at a pressure of 0.3 - 6 Bar. • Untreated tap water may be used in this Autoclave although in the long term the

use of treated or partially demineralised water is recommended, particularly in extreme hard water areas. This will help reduce furring on the elements.

• The machine is fitted with a Conductivity Low-Water Cut-Out, and if fully

Deminerallised or distilled water is used for filling, the "Low Water" display may stay on and THE SYSTEM MAY OVERFILL THE Chamber WITH WATER..

• The cutout senses the conductivity of the water via High and Low probes. The

LOW probe is just above the elements and protects them from boiling - dry. It is only operative when the machine is running.

• The High probe is the level to which the chamber will be filled, to ensure

sufficient water to complete a sterilize cycle , and functions whenever the machine is NOT running, i.e. when the Door/Cover is open, before Pressing "START". This level is sufficient to permit Freesteaming of 35 - 40 min .

This autoclave is designed to Heat fairly clean Water in the Chamber. The filling water is not contaminated by unsterile condensate or drainage from the Chamber. If the filling water becomes badly contaminated with AGAR, BLOOD, FAECES , or solid rubbish it will cause problems and probable failure. See Chamber and TANK CLEANING Instructions later in this section. Load Containers should be chosen to minimise loss of the contents into the autoclave, e.g.:- do not use plastic bags inside Autoclave Baskets but use a purpose-made Autoclave container designed to catch leaking waste. Please ask your supplier for details of containers for your machine. Please note that warranty provisions exclude work required as a result of misuse.

AUTOMATIC FILLING OPERATION The Automatic Filling system uses a pump and internal tank, fed from a Mains water supply. A Floatswitch and Solenoid valve act to keep the water at a suitable level. When the door or Cover is opened the Water Level Sensor Probes detect the need for water and start the pump. This passes water through a Valve into the Chamber via a fitting in the Chamber wall. When the correct operating level is reached the pump stops and the Display shows ;-

WATER LEVEL O.K. PLEASE LOAD AND CLOSE

The Autoclave may then be loaded and the program selected and started




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FILLING WITH WATER

STANDARD MODELS with AUTOMATIC FILLING OPTION • The Machine requires a supply of mains cold water at a pressure of 0.3 - 6 Bar. • Untreated tap water may be used in this Autoclave although in the long term the use of treated or

partially demineralised water is recommended in extreme hard water areas. This will help reduce furring on the elements.

• The machine is fitted with a Conductivity Low-Water Cut-Out, and if fully Deminerallised or distilled water is used for filling, the "Low Water" display may stay on and THE SYSTEM MAY OVERFILL THE CHAMBER WITH WATER..

• The cutout senses the conductivity of the water via High and Low probes. The LOW probe is just above the elements and protects them from boiling - dry. It is only operative when the machine is running.

• The High probe is the level to which the chamber will be filled, to ensure sufficient water to complete a sterilize cycle , and functions whenever the machine is NOT running, i.e. when the Door/Lid is open, before Pressing "START". This level is sufficient to permit Freesteaming of 35 - 40 min .

This autoclave is designed to Heat clean Water in the Chamber. The incoming filling water is not contaminated by unsterile condensate or drainage from the Chamber but on FRONT LOADING Models the DOOR DRIP TRAY drains into the tank. It is advisable to prevent spillage’s into this driptray and clean them out if they do occur. If the filling water becomes badly contaminated with AGAR, BLOOD, FAECES , or solid rubbish it will cause problems and probable failure. See CHAMBER and TANK CLEANING Instructions later in this section. Please note that warranty provisions do not cover work required as a result of misuse. Load Containers should be chosen to minimise loss of the contents into the autoclave, e.g.:- do not use plastic bags inside Autoclave Baskets but use a purpose-made Autoclave container designed to catch leaking waste. Please ask your supplier for details of containers for your machine.

AUTOMATIC FILLING OPERATION The Automatic Filling system uses a pump and internal tank, fed from a Mains water supply. A Floatswitch and Solenoid valve act to keep the water at a suitable level. When the door or lid is opened the Water Level Sensor Probes detect the need for water and start the pump. This passes water through a Valve into the Chamber via a fitting in the Chamber wall. When the correct operating level is reached the pump stops and the Display shows ;-

WATER LEVEL O.K. LEASE LOAD AND CLOSE

The Autoclave may then be loaded and the program selected and started

OVERFLOW WARNING PIPE. The Tank is provided with an Overflow / Warning Pipe at the rear of the Autoclave . Water may overflow if there is a problem with the Tank Level Control system. Please see Installation Instructions for W.R.C. recommendations re. Warning Pipes.




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CHAMBER CLEANING - AUTOMATIC FILLING MODELS The Chamber should be cleaned internally sufficiently often to prevent build-up of contaminants , and we would suggest that for a machine in daily use the Chamber should be checked once a week and cleaned if necessary . Open the DOOR/COVER as you would normally. CHAMBER DRAIN :- arrange a container under it to catch the outflow. The Display will show

Drain/Clean Chamber PRESS_[KEY] .TO EXIT

¿ [ON] [OFF] == [test-fill] The door / Cover is open and the Water Pump is filling the chamber. Turning the Key will inhibit the Autofill water flow . This allows the chamber to be cleaned out.

Drain/Clean Chamber [ON] [OFF] == [test-fill] ì é

Press the Function Key below [ON] Press the Function to turn on the water-supply to test it Key below [OFF] to turn the pump off again. Open The drain tap and allow the water to drain out. Clean the Chamber internally, taking care to avoid damage to the Water Level Sensor Strips, Temperature sensors, or the Overtemperature Cutout sensor which is clamped to the top of one heater. If necessary , add more water to wash out sediment or rubbish. When cleaning is complete, turn the Drain Tap to the CLOSED position (Handle at Right-Angles to the valve body) and then operate the KEYSWITCH again. The Control system and Display will return to Automatic Filling mode. INTERNAL TANK WATER SUPPLY FAILURE In the event of Water Supply failure the Level Control System senses a low Internal Water Tank level & shuts off the Internal Pump, displaying a warning message.:-

If this shows please Check that the Water Supply is turned on at the supply valve.

If this occurs please Check that the Water Supply is turned on at the supply valve. Should a supply be temporarily unavailable water may be added to FRONT LOAD MODELS or TOP LOAD MODELS by hand- follow the instructions for MANUAL FILLING on the next pages. OVERFLOW WARNING PIPE. Tank Overflow ; The Tank is provided with an Overflow / Warning Pipe . Water may overflow if there is a problem with the Tank Level Control system. Please see Installation Instructions for W.R.C. recommendations re. Warning Pipes.

WATER TANK LEVEL LOW PLEASE CHECK OR FILL.




Page 27

CHAMBER CLEANING

DIRECT STEAM HEATED MODELS It is advisable to clean the inside of the Chamber when still warm to prevent build-up of contaminants. Proceed as for Manual Fill models above, but there is no Drain Tap- instead the Condensate drain will drain the Chamber automatically. Avoid washing lumps of solid matter, broken Glass, etc down the Condensate drain.




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MANUAL FILLING WITH WATER

ELECTRICALLY HEATED MODELS • Untreated tap water may be used in this Autoclave although in the long term the use of distilled or

demineralised water is recommended in hard water areas. This will help reduce limescale build-up ( furring ) on the heaters.

• The machine is fitted with a Conductivity Sensing Low-Water Cut-Out. • If Deminerallised or distilled water is used for initial filling, the "Low Water" display may stay on

even if the water-level is adequate. Should this happen, add 0.5 - 1 litre of tap water or a little common salt. This should provide sufficient conductivity to activate the Sensor System.

• The Cutout senses the conductivity of the water via High and Low-level probes. The LOW probe is

just above the Heater elements and protects them from boiling dry. It is only functional when the machine is running a Sterilize Cycle.

• The High probe is at a Reserve level to which the chamber must be filled, to ensure sufficient

water to complete a Sterilize Cycle , and functions whenever the machine is NOT running, i.e. when the lid is open, or before Pressing "START". This Water Reserve Level is set to permit Freesteaming of 35-40 minutes.

• The chamber should not be overfilled. (Pour in the Water fairly slowly) • Add water to the chamber until the "Low Water" Display disappears. The water-level will then reach

the High probe, sufficient for a cycle. It is not possible to start the machine in the LOW WATER condition. Press the "OPEN" button and open the chamber, then add water as required, close and start.

FILLING LEVEL - VISUAL CHECK

Should you wish to check the level by eye, the Level for the 35-40 min reserve is below the Load support plate or Lower Shelf. If this is lifted , the tip of the top Low-Water Probe (like a sparking plug with a metal strip) dips 5 mm under the surface. NOTE:-.The Temperature Sensor is the 3mm diam Stainless Tube which projects 150 mm into the chamber and MUST NOT BE COVERED WITH WATER. This Autoclave and the filling water must be kept clean for correct operation .

Please observe instructions on Contamination and Cleaning.




Page 29

CHAMBER CLEANING( if MANUALLY FILLING ) ELECTRICALLY HEATED MODELS

This autoclave is designed to Heat-Up clean Water in the Chamber. If the filling water becomes badly contaminated with AGAR, BLOOD, FAECES ,etc, or solid rubbish it will cause problems and probable failure. Please note that warranty provisions do not cover work required as a result of miss-use. The Chamber should be cleaned internally sufficiently often to prevent build-up of contaminants , and we would suggest that for a machine in daily use the Chamber should be checked once a week, and the Tank once a month and cleaned if necessary .

CHAMBER; Take care not to damage the sensors or associated items sited in the lower part of the autoclave. If the CHAMBER DRAIN at the rear has not been plumbed into a hopper, tundish or drain , arrange a 15 Litre container under it to catch the outflow. Open the DOOR/LID as you would normally. Locate the Chamber Drain Tap at the rear of the Autoclave , Open It , and allow the water to drain out. Clean the Chamber internally, taking care to avoid the Water Level Sensor Strips , Temperature sensors or the Overtemperature Cutout sensor which is clamped to the top of one heater. If necessary , add more water to wash out sediment or rubbish. When cleaning is complete, turn the Drain Tap to the CLOSED position (Handle at Right-Angles to the valve body ) and then fill with water as for normal operation. It may be necessary to clean the Chamber in a "Warm" condition if the contamination has "set" to a jelly but the Control system will prevent the door to opening if the chamber is HOT. Preferably, clean out whilst the chamber is warm after a Sterilize Cycle has been completed and the chamber has reached a safe opening temperature..

LOAD CONTAINERS Load Containers should be chosen to minimise loss of the contents into the autoclave water during the Sterilizing process, e.g.:- Avoid use of plastic bags inside Autoclave Baskets or perforated containers but use purpose-made Autoclave containers designed to catch any leaking waste. Please consult your supplier for details of suitable containers for your machine.




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WATER QUALITY AUTOMATIC WATER FILL

• The Machine requires a supply of mains cold water at a pressure of 0.5 - 6 Bar. • Untreated tap water may be used in this STERILIZER although in the long term

the use of treated or partially demineralised water is recommended in extreme hard water areas. This will help reduce furring on the elements.

• The machine is fitted with a Conductivity Low-Water Cut-Out, and if fully Deminerallised or distilled water is used for filling, the "Low Water" display may stay on and THE SYSTEM MAY OVERFILL THE CHAMBER WITH WATER..

• The cutout senses the conductivity of the water via High and Low probes. The LOW probe is just above the elements and protects them from boiling - dry. It is only operative when the machine is running.

The High probe is the level to which the chamber will be filled, to ensure sufficient water to complete a sterilize cycle . This STERILIZER is designed to Heat clean Water in the Chamber. The incoming filling water uses watre from the condensate tank. A flow is maintained through this tank during part of the cycle to minimise the effects of contamination by unsterile condensate or drainage from the Chamber . The DOOR DRIP TRAY drains independently of the tank so spillages here will not affect the tank water . If the Tank water becomes badly contaminated with AGAR, BLOOD, FAECES , or solid rubbish it will cause problems and probable failure. See CHAMBER and TANK CLEANING Instructions later in this section. Please note that warranty provisions do not cover work required as a result of misuse. Load Containers should be chosen to minimise loss of the contents into the STERILIZER, eg.:- do not use plastic bags inside STERILIZER Baskets but use a purpose-made STERILIZER container designed to catch leaking waste. Please ask your supplier for details of containers for your machine.

OVERFLOW WARNING PIPE. The Tank is provided with an Overflow / Warning Pipe at the rear of the STERILIZER Water may overflow if there is a problem with the Tank Level Control system at the same time as a blockage in the outlet pipe.




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COMMISSIONING AND PROGRAM SETTING

This section describes how to derive the settings that you will need to enter for your intended program(s) . A "PROGRAM" consists of three process sections plus Cool Lock settings. Each of these is independently selected and adjustable, using the front-panel controls, for the of the four programs. (a) HEATING AND FREESTEAMING at 100C Purges the air from the chamber. (b) HEATING AND STERILIZE at Setpoint Temperature for Selected Time (c) COOLING LOCKS Set Temperature. Details of how to use the Keys and Display to enter the values and settings are given in the PROGRAMMABLE CONTROLLER MANUAL The Program Values can be determined by trial-and-error, but as this can be very long and involved, it is best to use a chart recorder to investigate the Temperature - Time behaviour of the load. A number of settings must be made;- FREESTEAMING This depends on the nature of the load . Items such as Bottled Fluids , Trays or Racks, Solid items, Bowls, etc do not trap much air, and will sterilize quite satisfactorily with minimal, typ 1 -2 minutes of FREESTEAMING TIME. However , boxes of small bottles, Phials , Petri dishes, etc trap a great deal of air and ALWAYS need a Freesteaming time of typically 10 - 35 minutes. b] PULSAR FREESTEAMING OPTION ( Astell Patent ) With the PULSAR PULSED FREESTEAMING OPTION it is possible to improve the air extraction from loads which have a lot of air trapped in small interstitial spaces and held in closed-sided boxes where steam penetration is hardest ( e.g., the Petri-Dish example given above ). These loads would otherwise require either a long freesteaming time or might require a vacuum air extraction cycle machine . When supplied & Configured “PULSAR” Pulsed Freesteaming may be selected within each program . Pulsed Freesteaming may be retro-fitted by an Astell engineer for a small charge if required. A Technical Description of “PULSAR” FREESTEAMING will be found on Page 39 DETERMINING THE FREESTEAM and STERILIZE TIMES The chamber will heat-up to sterilize Temperature before the load catches - up, and this time delay must be accounted for to ensure correct sterilization. The LOAD SENSED TIMING OPTION ( Where it has been fitted ) compensates for the time-lag automatically and only requires the Sterilizing Time to be entered. If the time-lag for the load to catch up with the chamber is known, or can be adequately estimated then this may be added to the desired Sterilizing Time and the total set as the STERILIZE TIME for the Program. In most cases the behaviour of a load in this arrangement is unknown, so it is necessary to use a chart recorder or multi-thermocouple indicator to monitor the load, and find the ideal Freesteam and Sterilize times.

USE OF A TEMPERATURE RECORDER OR DATA-LOGGER for COMMISSIONING MEASUREMENTS

Arrange a multi-pen Thermocouple CHART RECORDER or indicator to monitor the temperature in the load and in the chamber. ( - See "Thermocouple Access Ports" on Page 44). For a complex load, the steam penetration is slowest into the more enclosed parts , such as the centre of stainless steel buckets. In this case, the very centre of each container should be monitored with the sensor inside a load item (e.g.;- a Petri dish).. Other points throughout the load may be monitored depending on how many thermocouple sensors are available. If desired sterilizing monitor tapes or spore strips may be distributed throughout the load.




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LOAD SENSING OPTION The Process to determine the Time Settings differs if LOAD SENSED TIMING Option is fitted and selected. If it is available on your machine, you must decide whether it is necessary or desirable to use it or to select the simpler timing system You should choose to use this if the heatup time of the load may vary from cycle to cycle, e.g. if the size of loads varies widely. ;- • LOAD SENSED TIMING SELECTED & FITTED ; Please See Page 38 • LOAD SENSED TIMING NOT FITTED ; Please follow the instructions below. SETTING TIMES AND PARAMETERS WITHOUT LOAD SENSED TIMING 1] Select the desired PROGRAM and set values as follows:

FREESTEAM TIME For loads which require Freesteaming - 8 minutes For loads which DO NOT need Freesteaming - 1 minutes STERILIZE TIME 60 minutes STERILIZE TEMPERATURE - see below COOLING LOCK (Programmable) Set Temp. to 100C COOLING LOCK - } Record any setting for future internal preset thermostat } reference, then Set to MINIMUM on dial.

STERILIZE TEMPERATURES ; For loads which are NOT Temperature Sensitive it is recommended that the temperature is set to approx. 2 to 3 Deg C above the temperature at which sterilizing is required .This will help to speed up the process and to ensure adequate sterilization effectiveness. For loads which Are Temperature Sensitive e.g. MEDIA it is recommended that the temperature is set to not more than 1 Deg C above the temperature at which sterilizing is required . 2] Start the program cycle running. 3] Chamber and load temperatures will rise towards 100C, Note down the Freesteam Time reading on the DISPLAY at the time when the "Slowest " Load Testing Thermocouple exceeds 95C. [ Call this time display reading “T1”.] 4] At this point, turn the KEYSWITCH and press "START" at the same time . Answer "NO" to the controller question "ABORT?" Answer Yes to the controller question "Manual Stage Change?" 5] Chamber will heat to Sterilize. 6] Sterilizing Stage will start . The Temperature will control at the set Sterilizing Temperature.

Note down the "STERILIZE TIME" on the DISPLAY at the moment when the SLOWEST test thermocouple in the load reaches an acceptable temperature for sterilizing to occur. [Call this time reading “T2” ] Using the Timer Display as a clock wait a further measured period, equal to the desired STERILIZE TIME (For example, this might be 15 minutes. ).

7] At the end of this time, turn and hold the KEYSWITCH and press "START"

Answer "NO" to "ABORT?" Answer "YES" to "Manual Stage Change?" 8] 'COOLING' mode will begin, as shown on the display. 9] PROGRAMMABLE COOLING LOCK.

Set the PRESET COOL LOCK THERMOSTAT dial to Minimum . The load will cool down slower than the Chamber Temperature Display; Monitor the load temperatures on the Recorder/Indicator and note down the Displayed CHAMBER TEMPERATURE at the moment when the HOTTEST part of the load has cooled to a temperature safe to handle. Call this "PROGRAM COOL-LOCK TEMP"

10] PRESET COOL LOCK THERMOSTAT




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It is important to Correctly Adjust the PRESET COOLING-LOCK THERMOSTAT. However, it can only be set to One Temperature, which should be that required for the worst-case program from a point of view of operator safety.

Monitor the load temperature as it cools and when it falls below a safe temperature to handle (usually 80C) rotate the PRESET COOLING LOCK THERMOSTAT KNOB Clockwise very slowly until the display changes to show 'COMPLETE'. The reaction time of the system may be up to 10 seconds so carry out this in small steps of 2C at a time., waiting 10 seconds between steps. It is acceptable. to turn the knob slowly back and forth to check the setting, as the 'Complete' state does not 'LATCH' on, and will turn on and off following the movement of the knob. Leave the dial in the same position each time for at least 10 seconds to allow the system to react. Leave the dial in the finished “COMPLETE” position. Record the reading of the knob on the dial against the scale, for future reference purposes. This will normally be somewhere below 80 C probably around 55C, as the chamber wall cools much faster than the load, but slower than the chamber temperature display.

11] COMPLETION of CYCLE Unload the Sterilizer and submit any test-strips to examination / Incubation, etc ; These should

all indicate satisfactory sterilization. If this is not the case, it is possible that steam penetration into the load is restricted by load Packaging ( Plastic bags, boxes, or Paper Wraps are possible culprits ) or air is remaining in the load .The loading technique may require modification;- Try a smaller number of items per container , different containers, Wrapping or bags, and ensure that any bags have the tops opened before autoclaving, or consult the Manufacturer for advice on improving the steam penetration.

ENTERING THE VALUES THAT YOU HAVE DETERMINED

Use the Key-lock to Enter "Supervisor Mode" and select "Program Entry". Enter the PROGRAM VALUES into the PROGRAM PROFILE determined as follows;- STERILIZING TEMPERATURE has already been set at the start of the test and does not need to be changed. Leave it as it is Please note that The U.K. Medical Research Council recommended the following time/temperature relationships for the achievement of sterilizing conditions:-

Minimum Sterilize Temperature

Maximum Sterilize Temperature

Minimum Sterilize Hold Time

134 138 3 min 126 129 10 min 121 124 15 min 115 118 30 min

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. (For further information consult a standard reference text). To ensure that sterilizing conditions are met, the temperatures above should all be amended as follows to allow for calibration tolerances before setting into the profile :-

Specified Minimum Settings

Program Settings Recommended

134C -0+4 ; 3 mins ð 136C ; 3 mins 126C -0+3 ; 10 mins ð 128C ; 10 mins 121C -0+3 ; 15 mins ð 123C ; 15 mins 115C-0+3 ; 30 mins ð 117C ; 30 mins

FREESTEAM TIME - Set to the time measured, from the start of Freesteam Period to all points in the load reaching 95C. ( at this moment the display was Recorded as “T1”). FREESTEAM TIME = ( (Original Freesteam Time Set) - T1 ) minutes e.g. If “T!” was Display=2.00, then ;-




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8 min - 2 min = 6 minutes Freesteam time to set in program profile STERILIZE TIME - Set to the total of the time taken for the load to catch-up to sterilize temperature , added to the desired Sterilize Time in minutes. The Catch-up time is the original set sterilize time , less the reading taken as "T2” STERILIZE TIME = ( set Sterilize time - T2 ) + ( Desired Sterilize Time ) minutes e.g. If “T2” was Display=51.00, then ;- ( 60 min - 51 min ) + 15 min = 24 minutes Sterilize time to set in program profile COOLING LOCK SETTINGS COOL-LOCK TEMPERATURE ; Set this Parameter to the Temperature recorded during the test as "PROGRAM COOL LOCK TEMP" NOTE:-If this setting has already been determined for a different Program, the Final setting must be left at the LOWEST temperature of those determined for all programs.

SETTING PARAMETERS with LOAD SENSED TIMING OPTION FITTED SETTING UP WITH LOADSENSE TIMING OPTION FITTED BUT “PROFILED OVERSHOOT” DISABLED - (TURNED OFF) - IN CONFIGURATION. 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 STERILIZE TEMPERATURE to 2 Deg. C ABOVE the temperature at which the load is to be

Sterilized . This causes the Sterilizing Timer to start when the load is 2 Deg C. below the Sterilizing Temperature setting., equivalent to the desired Sterilizing Temp.

b) Set the STERILIZE TIME to the Actual DESIRED STERILIZE TIME. c) COOLING LOCK (PROGRAMMABLE) Set Temperature to 100C d) COOLING LOCK (INTERNAL PRESET THERMOSTAT - Record any setting for future reference,

then Set to minimum on dial. e) LOAD SENSING Set To “ON” in program profile Carry out stages 1 to 5 as described above for “without Load sensing” In place of stage 6, The Chamber 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 a temperature 2 Deg C BELOW the Sterilizing Temperature the Sterilizing Timer will START , and the cycle will proceed. ( It is not necessary to note down any value or time .) Omit Stage 7 completely ( the cycle will proceed under automatic control ). Carry out stages 8,9,10,11 as described above. Enter "Supervisor Mode" ,select "Program Entry " . Enter the PROGRAM VALUES determined as follows;- FREESTEAM TIME - Set to the time measured, from the start of the Freesteam Period to all points in the load reaching 95C. FREESTEAM TIME = ( ( Initial set Freesteam Time ) - T1 ) minutes STERILIZE TIME - Leave this Set to the time entered as STERILIZING TIME during the above test .




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However, If the results of the measurements indicate that , for one or more of the load points measured, the time spent above the "Ideal" sterilizing Temperature would be only just sufficient for sterilization then the Sterilizing time may be increased a little to suit .

LOADSENSED TIMING WITH PROFILED OVERSHOOT OPTION SETTING UP WITH LOADSENSE TIMING OPTION FITTED AND “PROFILED OVERSHOOT” ENABLED - (TURNED ON) - IN CONFIGURATION. Carry out all the test routines and setting up in the previous section, “SETTING TIMES & PARAMETERS with LOAD SENSED TIMING OPTION FITTED” , with the exception that the Sterilize Temperature is set to exactly the desired Sterilize Temperature. Do not add 2 Deg. C as this is done automatically by the Profiled Overshoot system . The final load Temperature should be the same as the desired sterilize temperature, and the Timing will start when the Set Sterilizing temperature is reached, instead of 2 Deg C below that point.

SETTING COOLING LOCKS with LOAD SENSED TIMING OPTION When Load Sense Timing is selected .

- whether using Profiled Overshoot Boost or not. COOLING LOCK TEMPERATURE 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 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 lock senses the actual load temperature there is no compromise , estimation or guesswork required over the release temperature

MEDIA HOLDWARM

If Media Holdwarm is required at the end of the cycle, then ‘MEDIA HOLDWARM’ should be set to ON in the program..

PULSAR PULSED FREESTEAMING Technical Description Astell Scientific Patent #2199496

PULSAR Pulsed Freesteaming is a development of Timed Freesteaming, and is intended to assist the steam penetration of the interstices of the load when this load comprises a large number of small items, which tend to trap air. Efficient Sterilizing requires that Steam is brought into contact with the load surfaces and the steam is the medium which carries the heat to these surfaces. It follows that if air is trapped in the load it will tend to insulate the load from the hot steam and prevent sterilizing conditions from being attained. Let's take the example of a stainless steel bucket filled with Petri dishes.;- As the steam pressure builds up, a steam-air boundary layer forms, and slowly diffuses downwards into the load. A period of NORMAL FREESTEAMING acts to carry off air molecules, increasing the rate of diffusion. PULSAR FREESTEAMING turns the VENT 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 . PULSED FREESTEAMING IS SELECTED BY USE OF THE "CONFIGURATION" LEVEL OF THE MICROPROCESSOR CONTROLLER.




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IF ENABLED IN THE CONFIGURATION LEVEL it will operate when set to ON in the program. ( A warning message informs the operator if it is set )

!!! WARNING !!!

1] PULSAR FREESTEAMING produces fairly loud releases of steam , and this may alarm unsuspecting passers-by. Treat this equipment as if it is mechanical machinery, and ensure that all personnel are aware of the operating effects. 2] Installation to Plastic Drainage Pipes, or the Astell range of Quench /Cooling boxes is not possible without danger to premises or personnel. Operation in such conditions constitutes misuse and the manufacturers accept no liability for the effects of such misuse, and reserve the right to withhold warranty provisions for parts concerned with the Chamber or steam system .

( SEE INSTALLATION INSTRUCTIONS )




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LOAD CONTAINERS AND LOADING Poor loading technique frequently results in failure to sterilize the complete load because any air entrapped will afford protection to the micro-organisms. It should be remembered that adequate space should be left between the articles being sterilized to allow all air to be flushed out by the steam. Empty vessels, narrow necked flasks and bottles should be placed upside down to prevent condensate collecting, and to allow air to drain from them. Perforated metal or Plastic Autoclavable containers or baskets are suitable, and any supports or dividers used must be perforated. Unless containers designed to Hold spilt load material are used, the chamber will require very frequent cleaning to avoid contamination of the Drain or Reservoir water by the leaking load liquids.

See sections on Chamber Cleaning , Pages 32 & 34

LOAD CONTAINERS Special Astell Patented "MORRISON" containers with perforations above the base and a false bottom are available for Top-Loading Machines. These allow air to be freely flushed from the load via the side vents while any liquid spillage is contained within the lower section of the container. A wide range of other Load containers are available from Astell Scientific to suit most requirements and operating procedures, and Special types may be provided where circumstances require.

COOLING SYSTEM The Cooling System Start Temperature is adjustable by an engineer in the Controller “Calibrate” Settings. It is not user-adjustable and must be set suitably for all loads to be sterilized in the autoclave. At this temperature 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 Factory-Set to 100C . The type of load may permit this temperature to be changed from the factory setting of 100C typical. Please see the CALIBRATION section in the Astell Controller Programming Manual. NOTE- There will always be a small amount of fluid lost from unsealed containers. Unsealed Bottled Fluid Loads :- If the Cool Start temperature is increased above 100C the losses due to boiling-over of the load fluid will be increased , but the cooling time will be reduced. If the temperature is reduced the boiling will be reduced but the cooling time extended. Non- fluid loads :- If the autoclave is never used for Fluid Loads then the Cool Start temperature may be changed to above 100C. Note “Make-safe” / “Discard” loads that produce a quantity of melted media should be regarded as Fluid Loads because the melted media mixture may boil and possibly cause foaming. This will contaminate the water in the chamber.




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SAFETY DOOR INTERLOCKS

This AUTOCLAVE/ STERILIZER is fitted with safety interlocks to prevent the opening of the lid or door when the chamber is pressurised, and to prevent pressurization if the door/lid is not fully closed. The UK Health and Safety regulations stipulate that the closure system and interlocks shall be inspected at regular intervals by a competent person , and that all operators shall be trained in the use of the controls, operating procedures, and the function of safety devices.

DOOR INTERLOCKS The door is held closed by a Three-position electrically retracting Bolt. The bolt is fitted with a sensor microswitch which is arranged to enable the heating and control system when the door is CLOSED AND ROTATED INTO THE LOCKED POSITION .With the door open or not fully locked heating is disabled.

VISUAL INSPECTION OF DOOR INTERLOCKS FRONT-LOADING MODELS ONLY 1 Unlock and open the door. - Check for smooth Swinging and/or Lifting action without grating or crunching noises, or looseness. 2 Locate the Locking Pin ( Round-ended Pin projecting out from the top or front panel not far from the hinge. ) should slide freely against spring pressure & return when pressed with a finger. 3 Observe the Locking Block;( the block on the side of the closure ring with which the Bolt engages}. This must be securely held by the securing bolts. 4 Operate the door handle . Observe the angular rotation of the Outer Locking Ring The rotation should be firmly limited by the End Stops, and the amount of rotation must be no more than the approx. distance between one closure "DOG" and the next On 455mm diam chambers this will be approx 18 Degrees . On 602 mm diameter chambers this will be approx 21 Degrees . 5 Observe the "Joggle Block", at the lower front of the door opposite the hinge. (about 5cmx5cmx2cm ,bolted to the front-plate with a zigzag slot on the inner face .) This must be present and securely held in position. 6 Locate the "Joggle Pin" fitted to the edge of the Closure Ring to engage with the slot in the "Joggle Block" - This must be present and securely fitted.

TOP-LOADING MODELS ONLY 1 & 2 check as above, then;- 7 Operate the Moulded Yellow door handle . The handle movement should be firm and the locking pin should engage with the recess in the underside of the handle. 8 Check that with the bolt in the “ locked” position, the handle cannot be moved to unlock the door.

IF THE MACHINE FAILS TO COMPLY WITH ANY OF THESE REQUIREMENTS, DO NOT OPERATE AND CONSULT A QUALIFIED ENGINEER IMMEDIATELY.

• TESTING DOOR INTERLOCKS • For Electrically heated machines, top-up water as in normal use. • Open Door Display should show “LOAD & CLOSE” • Close Door or lid, but DO NOT ROTATE handle into "locked" position. • The "Unlocked" display should show. • Rotate the door / handle to complete locking sequence. • The normal Program Selected ( ready ) display should show If the displays show out of sequence ,erratically, or fail to show do not operate and consult a qualified engineer immediately. the PED & U.K. HSE Guidance Note PM73 requires that such checks are carried out regularly. To Comply With HSE requirements, instructions regarding testing of these interlocks must be permanently displayed close to the STERILIZER Operator Position




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PERIODIC MAINTENANCE

Keep the surface of the Chamber flange clean. This bears on the gasket to seal the Chamber. If necessary apply a little Silicone Grease.. Regularly empty water from electrically heated models, and clean out. See notes on Water Contamination in "FILLING WITH WATER" section. Periodically;-

Carry out the Door Interlock test described on previous pages. Check that the safety valve is O.K. by lifting the handle which projects downwards from the top of the Safety Valve.

NOTE;- THIS SHOULD BE DONE BY A COMPETENT ENGINEER WHEN

THERE IS PRESSURE IN THE CHAMBER. The Safety Valve is to be found inside the case close to the label denoting "SAFETY VALVE” ,at the side on the same side as the hinge, accessed through a covered cutout .

SAFETY VALVE OPERATION TESTING

The safety valve must be checked as follows:- Use the Key button to go to Supervisor Functions and step through , then answer “YES” to Safety-ValveTest? Then step through until the control returns to the normal display. A warning will appear about the Safety Valve Test. This forces the next program run to be a special safety-valve test Program, with 142 C Sterilizing Temperature, sufficient to operate the Safety Valve. Start the Program. The Vacuum pump will start and a minimal cycle will operate . Eventually the temperature will rise towards 139 C and pressure to approx. 2.5 bar. When pressure reaches 2.4 to 2.68 Bar the safety-valve should Blow (This discharges out onto the floor , so keep away from the rear of the machine and warn other people of the resulting noise. ) IF THE SAFETY VALVE DOES NOT BLOW DOWN AT THE STATED PRESSURE

IT MUST BE CHECKED AND ADJUSTED BY A QUALIFIED ENGINEER. Once the valve has operated correctly this Safety Valve Test is complete , .Press the [START] key and Press”KEY” button at the same time. Answer “yes” to Manual Stage Advance? And “No” to Abort? This will allow you to stop the Sterilize part of the program. Allow the chamber to complete the cycle and open as normal.




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THERMOCOUPLE ACCESS PORTS

Two Thermocouple ports are provided. a] HTM10 -STYLE 1/2inch RP.FEMALE • Threaded Male Capped fitting- nominal 1/2” BSP. Adaptors are available from ASTELL to allow

fitting of Test Assemblies. b] ASTELL ENTRY FITTING. This is a proprietary connector with Knurled Hand-grip or Hexagon cover designed to clamp a silicone rubber split tapered bung. This is used for testing using a Thermocouple Recorder or thermometer. • The ½” RP port is sited on the chamber rear wall. Access is via the Flap-Down Rear Upper Cover or through an access hole at the rear. • The ASTELL ENTRY port is on the Side towards the Front on the opposite side of the machine to

the Safety Valve, behind a removable Cover Plate. FITTING THIN-WIRE THERMOCOUPLES To insert thermocouples in the ASTELL fitting release the large Nut and remove the washer and Silicone rubber bung. Cut the bung almost in half across the diameter. Pass the thermocouples through the washer , seal and nut, Re-assemble the gland and tighten the nut.

LOAD SENSING THERMOCOUPLES Astell-Designed Load Sensing Thermocouples are supplied for use with these machines . These are Armoured ( 8 mm armoured flexible lead with rigid 200 x5 mm probe ) The LOAD SENSED TIMING option uses Type "K" Thermocouple Probes .part No 361040 Astell-supplied Chart Recorders use Type ” T” Thermocouple Probes part no 361042 Consult your Astell service dept,. for alternative probe types and Part Numbers .

INSTALLING / CHANGING LOAD SENSING PROBES

The Armoured Flexible Probe has a short rigid tube at the Chamber Wall end. This tube is fitted through a modified version of the Silicone Rubber Bung, a 8mm 5/16in threaded Compression fitting in the Chamber wall . Thermocouple Connector used is the standard miniature flat-pin type, but please note that it may be necessary to remove the Plug from the end of the supplied Probe lead to allow it to be fitted through the port, and reconnected afterwards. When disconnecting make a note of the plug connections and wire colours and when reconnecting ensure that the plug pins are connected to the correct polarity wires.

Note;- When changing a sensor fitted in this way it is important to change the Compression joint Olive at the same time.

RECORDER SYSTEMS COMBINED WITH LOAD SENSED TIMING OPTION

This combination uses special Twin Armoured.Thermocouple Probes, with two independent sensors in one casing, electrically isolated. One sensor is connected to the Recorder, and the other to the Load Sensed Timing system.




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MICROBIOLOGICAL AIR FILTER

This autoclave is fitted with provision for an air filter on the air inlet. This filters the air when the chamber is cooling down and drawing air into the chamber to replace condensed steam. The filter should be changed regularly- life of each filter depends upon the type of use and operating conditions. It is the responsibility of the user to determine that the filter is effective and performing correctly. A good starting point would be to replace at 3-monthly intervals. INLET FITTING This is a 1/8 BSP screwed inlet socket sited behind the Cover Plate on the right-hand Side . or at the rear of the case. A screw-fit Disposable bacteriological Air-filter is available which may be screwed into the socket, REPLACEMENT SCREW-FIT FILTER ; Astell part number ZXA410




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INTERNAL FUSES & TECHNICAL NOTES. All fuses are 20mm Quick-Blow type. Fuses F7/F8 is/are only fitted on models for 200-220V 3-Phase (eg Option AAN110 or AAN0111) are located in the Power Input Box on the end of the Terminal Rail close to the Power Input Connector. The Power Input Box is the Internal Box visible through the cutout in the rear panel in which the mains Power Cable terminates. Models for use on 200-220v 3-phase supplies ;- These use an internal transformer to step up the voltage to 240V for actuators, etc. and the F7/F8 fuses protect the transformer. Fuses F2, F3, F4, F5, F6 are PCB fuses sited in the PSUI/O box. (The PSUI/O box is the other aluminium case at the rear behind the rear panel with the 12V transformer and Relay Drive PCB ).

Fuse Rating Type Protected Circuits F7/F8 5Amp Q/B Power Input to Transformer

( some models only )

F2 3.15 Amp

Q/B Power 240V to o/p circuits , bolt, valves,fan,recorder,auxiliaries,etc 3.15 A for later type Bolt Solenoid

F3 1 Amp or 3.15 Amp

Q/B Aux Output ( Recorder Power, etc)

F4 1 Amp or 2Amp Q/B 240v feed to 12v PSU Transformer F5 1 Amp or 2Amp Q/B 12v dc to Printer Board F6 2 Amp Q/B 12v dc to Micro Board and feed to

fuse F5 ELECTRICALLY - HEATED models do NOT as standard have fuses for heaters. Fuses or MCB cutouts must be provided in the Installation Switched Fused Isolator to protect the High-current supplies to the Heaters. SEE " INSTALLATION ". THERE ARE NO USER-SERVICEABLE PARTS INSIDE . FUSE FAILURE INDICATES A TECHNICAL PROBLEM WHICH SHOULD BE SOLVED BEFORE THE FUSE IS REPLACED.




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OVERTEMPERATURE CUTOUT This is incorporated as standard in Electrically heated SWIFTCLAVE STERILIZERS to prevent damage caused in the unlikely event of boiling dry .This will only occur if there is a failure of the Low Water Cutout system, usually due to neglect of water cleanliness. This system is intended to protect the Chamber, Controls, and the load from Fire or Thermal Damage but MAY NOT prevent the Water Heaters from damage due to overheating. The system uses a HYDRAULIC THERMOSTAT set to about 150-200C ( typ 160 C ) with the Adjustment Knob sited inside the cabinet on the side of the POWER INPUT BOX . The thermostat has a sensor bulb mounted in a clip clamped above one of the Heater Elements. In the event of the water level falling low enough to expose the immersion heater elements, the temperature of the heater will rise and the thermostat bulb will operate the Thermostat contacts. This turns off power to the complete control system. Please note that No Warning Lamp is provided. When the Overtemperature Cutout operates the display will go off and the Front-Panel Power LED will be off.

When the temperature drops, power is automatically restored and the control system will go through the "Power Failure" procedure as if the power had just been turned on. If this happens, allow to cool untouched , then restore power , open and unload. Contact the manufacturer before trying to operate the machine in any way.

OVERPRESSURE CUTOUT- MANUAL RESET ( OPTION) The system uses a Pressure Switch set to just below the safety valve setting .This senses the chamber pressure .. In the event of an overpressure condition the Pressure switch will operate and contacts will turn off the heater/steam supply.. A Warning Lamp and audible alarm buzzer will sound.

When the temperature drops, power is NOT automatically restored . The Manual Reset control at the rear of the machine on the pressure switch must be operated – Please see label at rear of the machine for details.. If this happens there may be a hazard.- contact the manufacturer or your service agent before continuing to operate the machine in any way.




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CERTIFICATE OF EXAMINATION.

A Certificate of Examination is supplied with every STERILIZER. This gives details of Chamber thickness etc. relating to the pressure vessel, specifies the design pressure, the test pressure to which the Chamber was subjected during manufacture, and the date of the Pressure Vessel testing , which will be required by an insurance company.. It is a statutory requirement of the U.K. Health & Safety at Work Act that STERILIZERS be thoroughly inspected by a competent person prior to use ( usually an Engineering Surveyor from an Insurance Company ) , and at least every 14 months thereafter. (Section 35(5) of the Factories Act 1961.) The information on the Test Certificate will be required by the Inspector, and you are advised to take good care of your Certificate. For Technical Advice , Service and repairs, Spare parts or Sales contact ;

* ASTELL POWERSCROFT RD SIDCUP KENT DA14 5DT ENGLAND ( Tel +44 (0) 208 300 4311 2 Fax +44 (0) 208 300 2247 : [email protected]


mailto:[email protected]



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POWER INPUT WIRING CONNECTIONS APPENDIX 1

CONNECTIONS Fig 1 STANDARD 1-PHASE 230V+/- 10% SINGLE PHASE WIRING TO POWER INPUT TERMINAL BLOCK

CONNECTIONS FIG 6 STANDARD 3-PHASE 380-440V 3-PHASE WIRING TO POWER INPUT TERMINAL BLOCK Wire sizes see below

CABLE SIZE minimum

TOTAL POWER kW / VOLTAGE

1mmsq 18 awg

Direct Steam Heated 110V or 240V 1 PHASE

1.5 mmsq 16 awg

7/10 kW 240V 1 PHASE 380-440V 3 PHASE

2.5 mm sq 14 awg

12 KW 380-440V 3 PHASE

4 mm sq 12 awg

16 kW 380-440V 3 PHASE

2.5 mmsq 14 awg

7/10 kW 110V 1 PHASE 200-220V 3 PHASE

4 mm sq 12 awg

12 KW 200-220V 3 PHASE

6 mm sq 10 awg

16 kW 200-220V 3 PHASE

Note- wire link required from terminal L1 to L2



Astell MXN475 AMA 260 Swiftlock 80-300 Manuallitre

Documents

water models

water quality

load sensing timing

program models quick

load containers

dummy load

freesteaming timing

chamber cleaning models