sterilemax table top steam sterilizer - cole-parmer · 2016-11-15 · this barnstead tabletop steam...

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BARNSTEAD|THERMOLYNE CORPORATION

SterilemaxTable Top Steam Sterilizer

Operation ManualSeries 1118

LT1118X1 • 3/23/00 Serial Number

Model Numbers

Without Printer Voltage With PrinterST75925 120V ST75935ST75924 100V ST75934

ST75920-33 220V ST75930-33

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Sterilemax Table Top Sterilizer

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Table of Contents

Introduction ........................................................................................................................................................ 5Safety Information .............................................................................................................................................. 6

Warnings ......................................................................................................................................................... 6Specifications ..................................................................................................................................................... 9

Trays ............................................................................................................................................................... 9Dimensions ..................................................................................................................................................... 9Shipping Weight .............................................................................................................................................. 9Electrical ......................................................................................................................................................... 9Standards ....................................................................................................................................................... 9Reservoir Water .............................................................................................................................................. 9Mounting ......................................................................................................................................................... 9Controls .......................................................................................................................................................... 9Environmental Conditions ............................................................................................................................. 10Declaration of Conformity ............................................................................................................................. 10

Description ....................................................................................................................................................... 11Operational Programs ................................................................................................................................... 11Program Summary Chart .............................................................................................................................. 12Controls ........................................................................................................................................................ 13Sterilizer Features ......................................................................................................................................... 14

Installation ........................................................................................................................................................ 16Location ........................................................................................................................................................ 16Unpacking ..................................................................................................................................................... 16Electrical Connections .................................................................................................................................. 17

Altitude Adjustment .......................................................................................................................................... 18Display Parameter Setup ................................................................................................................................. 19

Setting Month/Date/Year/Hour/Minute .......................................................................................................... 19Changing Temperature Units ........................................................................................................................ 20Changing Pressure Units .............................................................................................................................. 21Changing Printer Mode ................................................................................................................................. 22

Sterilization Procedures ................................................................................................................................... 23Materials Appropriate For Steam Sterilization .............................................................................................. 23Instrument Cleaning Prior To Sterilization .................................................................................................... 24Preparation of Carbon Steel Instruments ..................................................................................................... 25Preparing Items for Sterilization .................................................................................................................... 26Loading the Sterilizer Chamber .................................................................................................................... 31Handling Sterilized Materials ........................................................................................................................ 32

Recommended Monitoring ............................................................................................................................... 33Process Monitoring ....................................................................................................................................... 33Biological Indicators ...................................................................................................................................... 34

Operation ......................................................................................................................................................... 36Initial Startup ................................................................................................................................................. 36Outline of Operation ...................................................................................................................................... 37Details of Operation ...................................................................................................................................... 37Drying Sterilized Loads ................................................................................................................................. 39

Printer ............................................................................................................................................................... 40Printer Access ............................................................................................................................................... 40Paper Advance Button .................................................................................................................................. 40

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Paper Tape Rolls .......................................................................................................................................... 41Printer Operation .......................................................................................................................................... 41Printer Tape Description ............................................................................................................................... 41Printer Record Storage ................................................................................................................................. 42

Special Operating Instructions ......................................................................................................................... 44Emergency Off (Cycle Abort) ........................................................................................................................ 44Resetting Automatic OTP ............................................................................................................................. 44Erratic Controls Display or Operation ........................................................................................................... 45Power Failure During Sterilizing Cycle ......................................................................................................... 45

Problem Solving Chart ..................................................................................................................................... 46Maintenance Schedule Chart ........................................................................................................................... 48Maintenance..................................................................................................................................................... 49

Daily Maintenance ........................................................................................................................................ 49Weekly Maintenance .................................................................................................................................... 49Monthly Maintenance .................................................................................................................................... 50Maintenance To Be Done As Required ........................................................................................................ 52Changing Door Gasket ................................................................................................................................. 53

Figures ............................................................................................................................................................. 54Parts List .......................................................................................................................................................... 57Ordering Procedures ........................................................................................................................................ 58Decontamination Statement ............................................................................................................................. 59One Year Limited Warranty .............................................................................................................................. 60

TABLE OF CONTENTS

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Introduction

This Barnstead Tabletop steam sterilizer has beendesigned for use in medical and dental offices,university laboratories, clinics, hospitals and otherlocations where a variety of materials requiresterilizing.

Your Barnstead Sterilizer can be used forwrapped or unwrapped instruments, packs, liquids,test tubes, petri dishes and media.

The optional thermal printer provides apermanent record of actual exposure times andtemperatures.

General Usage

Do not use this equipment for any purpose otherthan its intended use, described in this manual.

WarningDo not use this equipmentfor any purpose other thanits intended use, describedin this manual.

Do not use the sterilizer toprocess volatilesubstances or materialswhich could release toxicor explosive substances.

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Safety InformationWarnings

1. Do not use this equipment for any purposeother than its intended use, described inthis manual.

2. Use only self-venting, automatic sealingstoppers when processing liquids ormedia. Use of other stoppers or seals, orlack of stoppers, will create the possibilityof burns or injury from boiling liquids andexploding flasks.

3. Refer servicing to qualified personnel.

4. Use caution when opening the sterilizerdoor. Stand to the side behind the doorand open door slowly and partially toprotect yourself from escaping steam orboiling liquids and exploding flasks.

5. Sterilizer and trays will be hot after cycle isrun. Always wear protective gloves andapron when removing a processed load.Protective gloves and apron should alsobe worn when reloading sterilizer followingprevious operation.

6. Do not attempt to open sterilizer door untilthe display reads "Cycle Complete".Pressure within the chamber could causethe door to open with extreme force,possibly causing personal injury.

7. Ensure that the sterilizer is cool beforecleaning to avoid burns.

8. Pressurized steam will be dischargedwhen the relief valve is opened. Toprevent burns, place a steam barrier (suchas a rolled towel) around the opening inthe back of the unit. To prevent burns,wear gloves or use an extension device ifit becomes necessary to operate the pullring.

WarningWarnings alert you to apossibility of personal injury.

CautionCautions alert you to apossibility of damage to theequipment.

NoteNotes alert you to pertinentfacts and conditions.

Hot SurfaceHot surfaces alert you to apossibility of personal injury ifyou come in contact with asurface during use or for aperiod of time after use.

Alert Signals

Consult Instructions for UseThis symbol appears on theproduct to refer you to theinstruction manual for furtherinformation.

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9. Do not use the sterilizer to process volatilesubstances or materials which couldrelease toxic or explosive substances.

10. Connect only to an electrical circuit of theappropriate voltage and load rating.

11. Do not overfill reservoir. To avoid slipperyconditions and possible loadrecontamination, immediately wipe up allspillage resulting from overfilling chamberor reservoir.

12. Do not add water to reservoir while asterilization cycle is in process. When thecycle ends and steam vents back into thereservoir, a sudden overflow of hot watercould occur, possibly resulting in burns topersonnel.

13. To prevent collection of mineral depositsand corrosion of chamber components,use distilled or low quality deionized wateronly. Clean chamber after each use ifsterilizing saline solutions.

14. Processing goods at less thanrecommended time/temperature couldresult in unsterile goods.

15. Reprocess your load when the sterilizingcycle has been terminated prematurely.The load may not be sterile when thesterilizing cycle has been terminatedprematurely.

16. Open door slowly at the end of a liquidsterilization cycle. Do not allow hot bottlesto be jolted. This can cause bottleexplosions. Do not move bottles if anyboiling or bubbling is present.

SAFETY INFORMATION

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17. Allow bottles to cool before attempting tomove them from sterilizer shelf or tray(s)to the storage area.

18. If media is processed, bottles and tubesshould contain no more than 3/4 the totalvolume of the container. When processingwater bottles and test tubes, the bottlesand tubes should contain no more than 3/4the total volume of the container. Chambershould be cleaned daily when processingmedia.

19. Keep patients at least six (6) feet awayfrom the sterilizer when it is in use.

20. Do not operate this sterilizer in thepresence of flammable or explosivesubstances (such as anesthetics). A fire orexplosion could occur.

21. Never use a wire brush, steel wool,abrasive material, or chloride-containingproducts to clean door and chamberassembly.

22. Use a process monitor in every cycle toensure exposure to minimum sterilizingconditions. Use a biological indicator oncea week to verify your sterilization process.

23. Dental handpieces should be run only onoptional cycle at 132°C for 10 minutes.Check manufacturer's recommendationsfor sterilization parameters.

SAFETY INFORMATION

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Specifications

Trays

Tray DimensionsLarge - 15 1/2" x 9 3/16"

(39.4 x 23.3 cm)Small - 15 1/2" x 6"

(39.4 x 15.2 cm)

Number of TraysThe sterilizer is supplied with twotrays, 1 large and 1 small, and onerack.

Dimensions

Capacity34 Liters (Vessel) (1.2 cubic feet)7.0 Liters (Reservoir)

Overall DimensionsW x D x H Inches(cm)22 7/16" x 24 1/2" x 17"(57.0 x 62.2 x 43.2)Chamber (Dia. x Depth)12" X 18"(30.5 x 45.7)

Shipping Weight

85 lbs. (38.5 kg)

Electrical

Heater Power1500 W

Power requirements120V, 50/60 Hz, 12.5 Amps220V, 50/60 Hz, 6.5 Amps100V, 50/60 Hz, 15 Amps

Standards

ASMEUL/cUL to UL3101-1

Reservoir Water

Distilled or low qualitydeionizedMax. 1.5 Megohm/cmMin. .5 Megohm/cm

Mounting

Benchtop only

Controls

Fixed Cycles- Liquid- Packs- Wrapped- Unwrapped

Optional Cycle

NoteYou can examinethe pressurevessel rating platefor the sterilizerchamber byopening the panelon the back coverof the sterilizer,then removing thesmall plug ofinsulation on theback of thesterilizer chamber.

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Environmental Conditions

Operating: 4°C - 40°C; 20% - 80% relativehumidity, non-condensing. InstallationCategory II (overvoltage) inaccordance with IEC 664. PollutionDegree 2 in accordance with IEC 664.Altitude limit: 3,650 meters.

Storage: -25°C - 65°C; 20% - 80% relativehumidity.

Declaration of Conformity

Barnstead|Thermolyne hereby declares under itssole responsibility that this product conforms withthe technical requirements of the followingstandards:

EMC: EN50081-1 Generic EmissionStandard; EN 50082-1 GenericImmunity Standard.

Safety: IEC 1010-1-92 Safety requirementsfor electrical equipment formeasurement, control and laboratoryuse; Part I: General RequirementsIEC 1010-2-010 Part II: Particularrequirements for laboratory equipmentfor the heating of materials

per the provisions of the ElectromagneticCompatibility Directive 89/336/EEC, as amended by92/31/EEC and 93/68/EEC, and per the provisionsof the Low Voltage Directive 73/23/EEC, asamended by 93/68/EEC.

The authorized representative located within theEuropean Community is:

Electrothermal Engineering, Ltd.419 Sutton RoadSouthend On SeaEssex SS2 5PHUnited Kingdom

Copies of the Declaration of Conformity areavailable upon request

SPECIFICATIONS

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Description

Operational Programs

The sterilizer has four preset cycles which havebeen optimized to provide excellent results for mostapplications. In addition, there is one optional cyclethat allows you to set your own sterilizationparameters. You access the pre-programmedcycles by pushing one of the four green fixed-cyclebuttons. The four preset sterilization programs are:

Unwrapped GoodsFor unwrapped instruments and items made of

metal, glass or plastic. Parameters: 3 minutes at135°C.

Wrapped GoodsFor wrapped packs of clothes, bandages, pads,

fabrics, rubber tubing and metal instruments.Parameters: 10 minutes at 135°C.

LiquidsFor distilled water, media solutions and other

liquid prepared in closed bottles or flasks.Parameters: 15 minutes at 121°C.

PacksFor packs of instruments and towels and other

packed goods. Parameters: 30 minutes at 121°C.

If your application requires different sterilizationparameters than the ones set in these programs,the optional cycle should be selected. See"Optional Cycle" for details.

NoteThe liquid cycle is notdesigned for sterilization ofliquids in a clinicalapplication. Do not preparesterile liquids for in vivoapplications with theSterilemax system.

Dental handpieces should berun in the optional cycle at132°C for 10 minutes. Referto manufacturer'srecommendations for contraindication of sterilizationparameters.

When sterilizing handpieces,refer to the manufacturer'sspecifications on handpiecesfor contra indication ofsterilization parameters.

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Program Summary Chart

DESCRIPTION

NoteWhen sterilizing handpieces, refer to themanufacturer's specifications on handpiecesfor contra indication of sterilization parameters.

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Controls

All cycles and programming are selected and set inusing the front touchpad selector buttons.

Power SwitchThe Power Switch turns power to the unit on andoff. When you turn the power on, the display will beset to select a sterilization cycle. It is located underthe right front corner of the sterilizer.

Cycle Buttons (Green)These buttons allow you to run the preprogrammedcycles at the touch of a button. See OperationalPrograms.

Optional Cycle (Yellow)This parameter allows you to select different timeand temperature levels for your cycles than thoseprovided with our preset programs. An optionalcycle can be run as either a liquid or hard goodscycle. All material run in this cycle must bevalidated by the user.

Up/Down Arrows (Yellow)These allow you to set the time and temperature inan optional cycle. They are also used for scrollingthrough other functions.

Start Cycle (Dark Green)Pressing the "Start Cycle" Switch activates thecurrently selected processing cycle. It is also usedfor scrolling through other functions.

DESCRIPTION

NoteThe "Select" button is usedby Barnstead|Thermolyneservice personnel to adjustthe operating parameters ofthe sterilizer.

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DESCRIPTION

Stop (Red)This control is used to terminate any cycle. It is alsoused for scrolling through other functions.

Sterilizer Features

PrinterThis feature (available on some models) is athermal printer that record's each cycle'sperformance. See page 40 for more information.

Pressure MonitorThe pressure monitor indicates the pressure insidethe chamber. This monitor's readings can be foundon the display as each cycle is running.

Door SecurityWhile the chamber is under pressure, the door isheld securely closed with three separate lockingsystems. First, there is a locking handle that youmust tighten to hold the door fully closed. Thelocking handle turns clockwise to close andcounterclockwise to open. Second, there is apressure actuated locking pin which automaticallysecures the door, preventing it from beinginadvertently opened while there is pressure in thechamber. Finally, there is a backup catch which willprevent the door from opening fully even if there isa small amount of pressure in the chamber. Yourelease this catch with a lever which is located inthe lower left side of the door. To fully open thedoor, pull the door release lever toward you.

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Door SwitchActuated by the door, the door switch preventsoperation of the sterilizer if the door is not fullyclosed.

Pressure Relief ValveThis valve protects the coded vessel frompressures exceeding the pressure rating of thevessel. The valve opens and releases steam in theevent that pressure in the vessel exceeds 45 PSIG(310 kPa). The pressure line is located in the backof the unit. An access hole is located in the backpanel to allow you to periodically check relief valveoperation.

Reservoir DrainA drain assembly is provided to empty thereservoir. The reservoir drain assembly and plugare located at the lower right of the chamberopening on the front of the sterilizer (as you facethe unit). The drain assembly attaches to the drainconnector so a hose can be attached for drainingthe sterilizer reservoir into a container.

Trays and Tray RackA rack for the inside of the sterilizer is provided tohold the instrument trays. The rack slides out of thechamber to allow periodic cleaning of the chamberand rack.

Three large trays and one small tray can beplaced into the rack or the rack can be used withonly one or two trays or no trays. Tall items can besterilized by removing both trays and placing theobjects on the bottom surface of the rack. Onelarge and one small tray are provided with the unit.See "Loading the Sterilizer Chamber" on page 31 ofthis manual.

DESCRIPTION

WarningPressurized steam will bedischarged when the reliefvalve is opened. To preventburns, wear gloves or usean extension device if itbecomes necessary tooperate the pull ring.

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Installation

Location

For optimum performance of your sterilizer, thesterilizer should be installed in conformance to thefollowing parameters:

SurfaceFor proper operation, the sterilizer must be placedon a level, heat and water resistant surface. If thesurface is not level, the water in the sterilizer will beunevenly distributed, possibly resulting in asterilizer malfunction. Do not adjust position of thefeet on the sterilizer.

ClearancesAllow at least 3" (75mm) between the sterilizer andwalls on the sides and back for air circulation. Alsoallow at least 8" (204mm) between the top of thesterilizer and any overhanging cabinet above it.Overhangs should not project more than 8"(204mm) over the rear of the sterilizer.

SurroundingsIf the sterilizer will be operated continuously, locateit in an area where its steam emissions will notdamage equipment or materials.

Unpacking

Remove the sterilizer carefully and inspect it for anyshipping damage. Do not throw away packingmaterials until you inspect the unit.

1. Turn the door handle counterclockwiseuntil it is completely loose and move thelocking mechanism to the left. Pull on the

CautionThe surface beneath thesterilizer could reach 100°F(38°C).

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latch release lever built into the left side ofthe sterilizer door and carefully open thesterilizer door.

2. Remove all packing materials andaccessories from the chamber.

3. Remove the trays and rack assembly fromthe chamber.

4. Check for any foreign material in thechamber. Wipe clean with a damp, lint-freecloth if necessary.

Electrical ConnectionsWe recommend that you use a separate(dedicated) circuit for this sterilizer. Ensure that thecircuit is rated for the load. (See ElectricalSpecifications.)

1. Connect power cord to power entrymodule on back of unit.

2. Plug power cord into a grounded outlet ofthe appropriate voltage and load rating.

INSTALLATION

WarningConnect only to an electricalcircuit of the appropriatevoltage and load rating.

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Altitude Adjustment

For proper operation, the sterilizer programaccounts for the altitude in controlling certainfunctions. The sterilizer is shipped with a factory-setaltitude value suitable for all altitudes up to analtitude of 1000 feet above sea level. If your altitudeis above 1000 feet above sea level, you will need toenter a new value for the altitude adjustment. Tochange the altitude adjustment value:

1. At the "Select Cycle" screen, press the"Select" key and then the up arrow key.The sterilizer will display a "ConfigurationInfo" screen, then it will automaticallychange to displaying the "Change Time"screen.

2. At the "Change Time" screen, press the"Select" key and then the "Liquids" key.

3. At the "Altitude Adjustment" screen, pressthe up arrow to select "Yes".

4. At the "Current Altitude" screen, press theup and down arrows to set the value foryour location's altitude to the nearest onehundred feet.

5. After you have set your altitude value,press the "Start" key to return to the"Select Cycle" screen.

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Setting Month/Date/Year/Hour/MinuteTo set the current date and time:

1. From the "Select Cycle" screen, press the"Select" key and then the up arrow key.

2. Wait for the sterilizer to display the"Change Time" Screen. Press the uparrow key to select "Yes."

3. At the "Set Current Month" screen, pressthe up or down arrow key to set thecurrent month. Press the "Start" key whenthe current month is set.

4. At the "Set Current Date" screen, pressthe up or down arrow key to set thecurrent date. Press the "Start" key whenthe current date is set.

5. At the "Set Current Year" screen, pressthe up or down arrow key to set thecurrent year's final two digits. Press the"Start" key when the current year is set.

6. At the "Change Hour" screen, press the upor down arrow key to set the currenttwenty-four hour clock hour. Press the"Start" key when the current hour is set.

7. At the "Change Minute" screen, press theup or down arrow key to set the currentminute. Press the "Start" key when thecurrent minute is set.

8. At the "Change Temperature Units"screen, press the down arrow key to select"No."

Display Parameter Setup

NoteSterilemax sterilizers areshipped with the displayunits set as follows:

120 volt units - °C, PSI

100 volt units - °C, KPA

240 volt units - °C, BAR

If your unit is not set to thesefactory settings or if yourequire other settings, referto "Changing TemperatureUnits" and "ChangingPressure Units" to set theunits to your requirements.

NoteIf you desire to change thetemperature units, press theup arrow to select "Yes",then refer to "ChangingTemperature Units."

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9. At the "Change Pressure Units" screen,press the down arrow key to select "No"and return to the "Select Cycle" screen, ifa printer is not attached. If the sterilizerhas a printer, the DOWN ARROW key willgo to the "Change Printer Mode" screen.

10. At the "Change Printer Mode" screen,press DOWN ARROW key to select "NO"and return to the "Select Cycle" screen.

Changing Temperature UnitsTo change the units in which the chambertemperature is displayed on the digital display andprinter tape (°C or °F):


2. Wait for the sterilizer to display the"Change Time" Screen. Press the downarrow key to select "No."

3. The sterilizer will then display the "ChangeTemperature" screen. Press the up arrowkey to select "Yes."

4. At the "Temperature Units" screen, pressthe up arrow key to toggle between °C and°F.

5. After you have selected your desiredtemperature units, press the "Start" key.

6. At the "Change Pressure Units" screen,press the DOWN ARROW KEY to select"NO" and return to the "Select Cycle"screen.

DISPLAY PARAMETER SETUP

NoteIf you desire to change thepressure units, press the uparrow to select "Yes", thenrefer to "Changing PressureUnits."

NoteIf you desire to change thepressure units, press the uparrow to select "Yes", thenrefer to "Changing PressureUnits."

NoteIf you desire to change thepressure units press the UPARROW to select "YES", thenrefer to "Change Printer Mode."

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Changing Pressure Units

To change the units in which the chamber pressureis displayed on the digital display and the printertape (PSI, BAR or KPA):


2. Wait for the sterilizer to display the"Change Time" Screen. Press the downarrow key to select "No."

3. The sterilizer will then display the "ChangeTemperature" screen. Press the downarrow key to select "No."

4. At the "Change Pressure Units" screen,press the up arrow key to select "Yes."

5. At the "Pressure Units" screen, press theup arrow to cycle between the threeavailable units.

6. When you have selected your desiredpressure units, press the "Start" key toreturn to the "Select Cycle" screen, if aprinter is not attached. If the sterilizer hasa printer, at the "Change Printer Mode"screen, press the DOWN ARROW key toselect "NO" and return to the "SelectCycle" screen.

DISPLAY PARAMETER SETUP

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Changing Printer Mode

This display can only be entered if the sterilizer hasa printer. To change the mode of use for attachedprinters from USED to UNUSED:

1. From the "Select Cycle" screen, press the"Select" key and then the UP ARROWkey.

2. Wait for the "Change Time" screen. Pressthe DOWN ARROW key to select "NO."

3. The sterilizer will then display the "ChangeTemperature" screen. Press the DOWNARROW key to select "NO."

4. At the "Change Pressure Units" screen,press the DOWN ARROW key to select"NO."

5. At the "Change Printer Mode" screen,press the UP ARROW to select "YES."

6. At the "Printer Mode" screen, press the UPARROW to toggle between the availablemodes.

7. When you have selected your desiredmode of operation, press the "Start" key toreturn to the "Select Cycle" screen—printer will print one line showing thecurrent mode setting.

DISPLAY PROCEDURE SETUP

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Sterilization Procedures

Materials Appropriate For SteamSterilization

• Straight stainless steel instruments

• Surgical stainless steel hinged instruments

• Pouches of instruments

• Carbon steel instruments (see special preparation instructions)

• Air powered instruments made to be autoclaved

• Needles

• Syringes

• Treatment trays

• Heat resistant plastic items

• Rubber gloves

• Heat resistant rubber tubing

• Heat resistant rubber sheeting

• Glass slabs and beakers

• Gauze

• Sutures

• Linen packs

• Liquids, non-clinical

• Other heat-resistant, immersible items

Always check with the manufacturer of yoursupplies for specific instructions forsterilization.

WarningDo not attempt to sterilizevolatile or toxic substances.Serious injury or death couldresult.

CautionDo not attempt to sterilizeany object composed ofmaterials which cannotwithstand high temperatures(135°C or greater).

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Instrument Cleaning Prior ToSterilizationTransport soiled instruments to your cleanup areaon a tray. Sort out any instruments unsuitable forsterilization (see list on page 21).

Follow manufacturer's recommendations forcleaning and preparing any particular item.In the absence of manufacturer's specificinstructions, clean instruments as follows:

1. Rinse instruments thoroughly with a hardstream of water to remove debris.

2. Sort instruments by their metalliccomposition. Do not mix instruments ofdifferent metals, as instrument damage willresult.

3. Using either a fresh solution of detergentand distilled water or a germicide solution,wash instruments in an ultrasonic cleanerfor five to ten minutes. Clean allinstruments in an open position.

Use a detergent or germicide with aneutral pH (7) specifically designed for usein an ultrasonic cleaner.

Use new ultrasonic cleaning solution eachday.

4. After cleaning, rinse instrumentsthoroughly in distilled or deionized water.Inspect to ensure that all debris has beenremoved. Repeat cleaning as necessary.

If distilled or deionized water is unavailableand instruments are rinsed in tap waterinstead, all instruments should be driedbefore sterilizing to prevent staining.

STERILIZATION PROCEDURES

WarningThoroughly cleaninstruments before placingthem in the sterilizer.Sterilizing itemscontaminated with blood ordebris will impedesterilization and may resultin unsterile instruments,which may cause personalinjury or death.

WarningAlways wear protectivegloves when handling soiledinstruments to protectyourself from the possibilityof serious infection. Cleangloved hands with agermicidal cleaner whenfinished handling soiledinstruments.

CautionSterilizing itemscontaminated with blood ordebris may cause staining ordamage to the instrumentsor the sterilizer.

CautionUse of soaking solutionscontaining phenols orquaternary ammoniumcompounds may causecorrosion of the instruments,trays and the stainless steelchamber.

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5. Refer to manufacturer's recommendationsfor lubricating instruments after ultrasoniccleaning. Use a silicon lubricant which willnot interfere with sterilization.

Preparation of Carbon SteelInstrumentsCarbon steel instruments must be carefullyprepared prior to sterilization to prevent rusting.After cleaning according to the manufacturer'srecommendations or the methods presented inInstrument Cleaning Prior To Sterilization ,prepare carbon steel instruments as follows:

1. Prepare a 2% solution of sodium nitrate inwater (approximately one table spoon in aquart of water). Completely immerse theinstruments in the solution and allow themto soak for three minutes.

2. Remove the instruments and packagethem for sterilization or place on trays ifsterilizing unwrapped. Do not rinse orwipe instruments prior to sterilization.


NoteDo not place carbon steelinstruments directly ontostainless steel trays. Placean unbleached towel orpaper wrap on the tray andplace the instruments on thetowel or paper.

When wrapping instrumentsfor sterilization, use amaterial which promotesdrying.

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Preparing Items for Sterilization

General Preparation Guidelines1. Clean items thoroughly before placing

them in the sterilizer. Follow goodlaboratory or medical procedures forcleaning and decontamination of items.

2. Place absorbent paper or linen towel in thebottom of trays before use.

3. Unwrapped goods should only beprocessed on trays. Do not place items onthe rack or the bottom of the sterilizer.

4. Liquids must not exceed 75% of capacityof flask. Use self-venting caps.

5. Open all hinged instruments.

6. Remove the covers from emptycontainers. Stand the containers andcovers on their sides.

7. Turn curved vessels upside down so nowater will collect in the vessel.

8. Place all sharps (knives, scissors, etc.) sothat they do not touch during sterilization.Cotton or gauze may be used to isolateand protect the sharp edges and thesmaller instruments.

9. Disassemble syringes if possible.

10. Do not plug syringes or needles.


WarningDo not overload the trays.Overloading trays may resultin inadequate sterilizationand unsterile instruments.

WarningMonitor the sterilizationprocess with processmonitors and biologicalindicators as described inRecommended Monitoring(p. 31).

CautionDo not mix different metals inthe same pack or wrappingor loose on the same tray.Instrument damage willresult.

27

Items to be Sterilized Loose and

Unwrapped

Items to be sterilized loose and unwrapped shouldbe distributed in a single layer on the bottom of alined, perforated tray. Do not overload tray; allowspace around instruments for steam circulation.

Metal and glass canisters and containers shouldbe placed upside down on a perforated tray. Makesure containers are placed so that they will drain, orthey will not dry sufficiently to ensure sterilization.

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WarningUnwrapped items cannot beconsidered sterile onceremoved from the sterilizerchamber.

Do not overload the trays.Overloading trays may resultin inadequate sterilizationand unsterile instruments.

NoteUnwrapped trays are usedfor sterilizing nonsurgicalinstruments, canisters andother items to preventtransmitting infectiousdisease.

28






Items to be Sterilized WrappedCleaned items may be wrapped individually inautoclave paper or placed in commercially preparedautoclave bags. Do not wrap tightly. Seal withautoclave tape or heat sealer.

Cleaned items may also be sterilized as a groupof instruments wrapped together. You may desire towrap a group of similar instruments together, or youmay desire to wrap together the instrumentsneeded for a particular procedure. Wrap theinstruments loosely in 2 to 4 layers of autoclavepaper or muslin or place them in autoclave bags.Seal with autoclave tape or heat sealer.

Place wrapped items on a perforated tray. Do notoverload tray; allow space around wrapped itemsfor steam circulation.

When using commercial sterilization bags,follow the manufacturer's instructions forproper use.


WarningDo not wrap packs tightlyand do not over fill autoclavebags. Steam must penetratethrough entire pack.Inadequate sterilization mayresult from improperpackaging.

Do not seal with staples, pinsor other methods which willpuncture the wrappingmaterial. If wrapping materialis punctured, sterility cannotbe assured once items areremoved from the sterilizerchamber.

Do not overload the trays.Overloading trays mayresult in inadequatesterilization and unsterileinstruments.

NoteIf you desire to include alarge number of instrumentsin a single package, seeItems to be Sterilized inPacks.

29

Items to be Sterilized on Wrapped TraysPlace cleaned items loose in the bottom of a lined,perforated tray. Additional layers of instrumentsmay be added, separated by fabric. Do notoverload the tray; steam must be able to penetratethrough the entire tray. Wrap the tray in 2 to 4layers of muslin or other appropriate wrappingmaterial. Seal with autoclave tape.

Items to be Sterilized in PacksUse packs to sterilize a number of instrumentstogether, to sterilize textile products and to sterilizesurgical gloves. When using commercialsterilization packs, follow manufacturer'sinstructions for proper use.

InstrumentsLoosely package cleaned instruments into packs

of not more than 10 instruments each. Instrumentswhich might nest together should be separated by alayer of absorbent material and placed in the packin a manner that will allow water to flow out of them.Seal with autoclave tape or heat sealer.







WarningDo not seal with staples, pinsor other methods which willpuncture the wrappingmaterial. If wrapping materialis punctured, sterility cannotbe assured once items areremoved from the sterilizerchamber.

Do not wrap items tightly anddo not over fill autoclavebags. Steam must penetratethrough entire wrappedgroup. Inadequatesterilization may result fromimproper wrapping.

Do not overload the trays.Overloading trays may resultin inadequate sterilizationand unsterile instruments.

30

Textile ProductsLaunder textile products before sterilization.Loosely roll or fold textile products. Place in

commercially prepared packages or wrap in 2 to 4layers of muslin or other appropriate wrappingmaterial. Seal with autoclave tape or heat sealer.

Surgical GlovesDisposable gloves should not be sterilized.Clean and dry gloves. Place a piece of muslin or

other absorbent material into the central area of theglove. Place a strip of muslin or other absorbentmaterial around the cuff and fold the cuff back overit. Wrap the gloves in muslin or other appropriatewrapping material. Seal with autoclave tape.

Place packs on a perforated tray. Place packs ofgloves so that the glove stand on end in thesterilizer. Load packs side-by-side; do not stackpacks.

Preparing Liquids for SterilizationPlace liquids in heatproof containers. Placecontainers on perforated tray. Do not fill flask morethan 75% full.

Items to be Sterilized in Optional CyclePlace material to be sterilized in appropriatecontainers or on trays prior to placement insterilizer. Follow instructions on display for settingcycle time, temperature and drying parameters. Ifrunning a liquid-optional cycle, ensure thatcontainers are not more than 75% full. User mustfollow proper safety procedures and sterilizationmonitoring procedures for the optional cycle. Everyoptional cycle should be validated by the user.

Dental handpieces should be run at 132°C for 10minutes.


CautionDo not use detergents with ahigh chlorine or phosphatecontent or chlorine bleachwhen laundering items priorto sterilization. Damage toinstruments and to thesterilizer chamber couldresult.

WarningDo not overload tray; allowspace around packs forsteam circulation. Packdensity should not exceed50% of the capacity of thetray. Metal or glass shouldnot be used to separatepacks, as these will inhibitdrying. Overloading the trayor failure to allow the packsto dry properly can result innon-sterile goods.

WarningDo not exceed the sterilizer'srated capacity for liquidsterilization. Non-sterileliquids could result. Fill flasksno more than 75% full. Usershould validate material inoptional cycle.

NoteUser should not attempt tosterilize more than 10handpieces per sterilizationcycle.

31

Loading the Sterilizer Chamber

Loading Guidelines1. When processing wrapped goods, fabrics

and dressings, always place items in oneof the three upper positions in thechamber. Processing items in the bottomposition could possibly result in wet packsand unsterile goods.

2. Do not exceed the specified loads for acycle:Unwrapped Goods - no more than 14 lbsWrapped Goods - no more than 14 lbs inno more than 12 small cassettes or 4 largecassettesPacks - no more than 2.8 lbs and no morethan 14 towelsLiquids - flasks filled no more than 75%full.

3. Do not overload the sterilizer. Steampenetrates best with loosely packed loads.

4. Do not allow packs or wrappings to touchchamber walls or one another.

5. Leave adequate space between trays toallow steam circulation.

6. Do not stack trays on top of one another.

7. Use a process monitor in each load. Wealso recommend that you use a biologicalindicator at weekly intervals. An indicatorcontaining Bacillus stearothermophilus isthe proper indicator for steam sterilizers.


WarningUse only self-venting,automatic sealing stopperswhen processing liquids ormedia. Use of otherstoppers or seals, or lack ofstoppers, will create thepossibility of burns or injuryfrom boiling liquids andexploding flasks.

If media is processed,bottles and tubes shouldcontain no more than 3/4 thetotal volume of thecontainer. When processingwater bottles and test tubes,the bottles and tubes shouldcontain no more than 3/4 thetotal volume of thecontainer. Chamber shouldbe cleaned daily whenprocessing media.

Sterilized liquids are fornon-clinical applications.

CautionPacks must be centered inthe chamber. Do not allowpacks to touch the sterilizerchamber's walls. Allowingpacks to touch the sterilizerchamber's walls may createan overheat condition.

32

Handling Sterilized Materials

Loads may be removed from the sterilizer at theend of the drying cycle. (Liquids may be removed atthe end of the sterilization cycle.) Unwrapped itemsshould be used immediately. Any unwrapped itemsnot used immediately cannot be considered sterileafter removal from the sterilizer chamber.

Date all wrapped packages and packs prior tostorage. Check the integrity of all wrappingmaterials prior to opening and using wrapped orpacked items; if the wrapping materials are openedor torn, the instruments must be consideredpotentially unsterile and should be re-sterilized priorto use. Re-sterilize all wrapped packages andpacks after one month in storage.


WarningSterilizer and trays will behot after cycle is run. Alwayswear protective gloves andapron when removing aprocessed load. Protectivegloves and apron shouldalso be worn when reloadingsterilizer following previousoperation.

Open door slowly at the endof a liquid sterilization cycle.Do not allow hot bottles tobe jolted. This can causebottle explosions. Do notmove bottles if any boiling orbubbling is present.

Allow bottles to cool beforeattempting to move themfrom sterilizer shelf or tray(s)to the storage area.

33

Recommended Monitoring

All functions of a sterilizer should be monitoredto provide maximum assurance of properperformance.

Process Monitoring

For assurance that minimum sterilizingconditions have been achieved, werecommend the use of a process monitor witheach cycle and within each package. Thissmall process monitoring device will provideimmediate indication of exposure totemperature and of time in the presence ofhumidity (steam).

TraysPlace a process monitor in the center of eachwrapped or unwrapped tray of loose items.

Wrapped InstrumentsPlace a process monitor inside each packagewith an instrument.

Wrapped Packages of InstrumentsPlace a process monitor in each package.

PacksPlace a process monitor inside each pack.When sterilizing textile products, place theprocess monitor in the center of the stack oftextile products. When sterilizing gloves, placea process monitor inside a glove inside eachpack.

NoteRefer to the manufacturer'srecommendations for proper useof process monitors.

34

Biological Indicators

Process monitors do not by themselves provesterilization has occurred. Biological indicatorscomposed of spores of standard organisms areconsidered the most reliable means of verifyingsterilization. A biological indicator functions bytesting the sterilizer's ability to kill test organisms ofa known high resistance. Indicators containingBacillus stearothermophilus should be used forsteam sterilizers. The Joint Commission onAccreditation of Hospitals recommends thatbiological indicators be used at least weekly tocheck the effectiveness of your steam sterilizer'ssterilization cycle.

When testing the effectiveness of a sterilizationcycle, use the appropriate "worst case" test loaddescribed for the cycle in this section:

Unwrapped InstrumentsPlace 100 instruments on a perforated tray linedwith a 100% cotton surgical towel. Place abiological indicator in the center of the test tray.Place the test tray in the center rack of the sterilizerchamber. Prepare additional trays in the samemanner without biological indicators to bring thetotal sterilization load to 14 lbs (6.4 kg).

Wrapped InstrumentsLoad a small cassette with 6 instruments. Place twobiological indicators inside the cassette. Wrap thecassette with two layers of appropriate wrapping.Seal with autoclave tape. Prepare eight other smallcassettes in the same manner without the biologicalindicators. Place the cassette with the biologicalmonitor upright in the center of a tray. Fill the traywith the rest of the cassettes. Place the tray in thecenter rack of the sterilizer chamber.

RECOMMENDED MONITORING

NoteWhen using a biologicalindicator for a 135°Ccycle, the user must besure that it has beenvalidated for use at135°C. We recommendusing theBarnstead|ThermolyneBiological Indicator (part# AY759X1) for this typeof cycle. If any otherBiological Indicator isused, the user mustensure that it has beenvalidated for a 135°Ccycle.

NoteRefer to themanufactuerer's recom-mendations for proper useof biological indicators.

35

RECOMMENDED MONITORING

Packs

TextilesPrepare a pack of 14 towels (per AAMI ST-8).Place three biological indicators in the center ofthe pack, between the sixth and seventhtowels. Wrap the pack with two strips ofautoclave tape, placing the tape around thewidth of the pack so that the two strips dividethe length of the pack into thirds.

PouchesPlace a biological indicator together with asurgical instrument into a self-sealing pouch.Place the pouch with the indicator in the middleof the tray. Place four other surgicalinstruments into pouches and place them onthe tray. Place the tray in the center rack of thesterilizer chamber.

Optional Cycle: For Dental Handpieces OnlyPlace a biological indicator together with onedental handpiece in a self-sealing pouch. Placethe closed pouch in the front of the sterilizertray. Place the tray in the lowest level of thechamber rack.

36

Operation

Connect the power cord to the unit and to agrounded outlet of appropriate voltage and rating.

Initial Startup

Power OnPush the Power Switch under the right front cornerof the sterilizer to the On position. The sterilizer willnot operate unless this switch is in the On position.

Filling ReservoirRemove the cover to the water reservoir and fill thereservoir with distilled or low quality deionized water(minimum 0.5 Megohm/cm, maximum 1.5 Megohm/cm) until the water level reaches the bottom of thefill line in the reservoir. The reservoir will holdapproximately 7.0 liters (6.3 quarts) of water. Thewater level should never be higher than the fill line.Do not overfill.

Refilling ReservoirWhen the reservoir runs low on water, the low levelsensor will alert you of the low water condition.When the display indicates "Reservoir is empty. Filland restart sterilization cycle," you will need to addwater to the reservoir before you run another cycle.You should never need to add more than 5 liters(5.3 quarts) at a time to the reservoir. The waterlevel should never be higher than the fill line. Do notoverfill.

You may determine a refill schedule dependentupon the pattern of operation at you facility. Thenumber of cycles you can run before the reservoir

WarningKeep patients at least six (6)feet away from the sterilizerwhen it is in use.

Do not operate this sterilizerin the presence of flammableor explosive substances(such as anesthetics). A fireor explosion could occur.

CautionTo prevent collection ofmineral deposits andcorrosion of chambercomponents, use distilled ordeionized water only. SeeSpecifications. Cleanchamber after each use ifsterilizing saline solutions.

Do not overfill reservoir. Toavoid slippery conditions andpossible loadrecontamination,immediately wipe up allspillage resulting fromoverfilling chamber orreservoir.

WarningDo not add water to reservoirwhile a sterilization cycle isin process. When the cycleends and steam vents backinto the reservoir, a suddenoverflow of hot water couldoccur, possibly resulting inburns to personnel.

37

needs to be filled will vary according to yourfrequency of operation, duration between cycles,type of cycles, etc.

Outline of Operation

Two basic steps are required to initiate a sterilizingcycle after the load has been placed in the chamberand the door closed and latched:

1. Select the cycle you desire.

2. Follow the displayed directions for thecycle.

Cycle selections cannot be changed once"Start Cycle" has been pressed. Tochange a setting, the cycle must beterminated by pressing "Stop." When youselect a new cycle, the cycle informationwill be changed automatically.

Details of Operation

Prepare LoadFollow preparation instructions on pages 26-30.

Load the Sterilizer ChamberYou may load wrapped or unwrapped instruments,linen packs, glassware and liquids. Follow loadinginstructions on page 31.

WarningSterilizer and trays will behot after cycle is run. Alwayswear protective gloves andapron when removing aprocessed load. Protectivegloves and apron shouldalso be worn when reloadingsterilizer following previousoperation.

OPERATION

38

Close the Sterilizer DoorThe door must be fully closed to run a sterilizingcycle. If the door is not fully closed, the sterilizer willstop and indicate, "The door is open. Close door tocontinue cycle."

Select Processing Cycle1. Select your required cycle.

2. Set the drying cycle time for pack,wrapped and unwrapped cycles. (See"Drying Sterilized Loads.")

Setting Drying Time

(For Pack, Wrapped and Unwrapped cyclesonly.)

If drying is desired, set the drying time when youselect the sterilization cycle. After you select aPack, Wrapped or Unwrapped cycle, the cycleparameters will be displayed. After the parametershave been displayed, you will be prompted to entera figure for drying time. You will find that the defaulttime — displayed at the prompt — is the optimalsetting for most loads.

If your application or load composition requires adifferent drying time to achieve appropriate drying,you can change the drying time setting when thedisplay prompts you. Use the up or down arrow toadjust the displayed drying time until your desireddrying time is displayed.

Press "Start Cycle"Processing will run automatically after you press"Start Cycle."

OPERATION

WarningProcessing goods at lessthan recommended time/temperature could result inunsterile goods.

39

Drying Sterilized Loads

At the completion of the sterilization cycle,turn the locking handle counter clockwise untilthe door is held in place by the backup catch.The door must be opened approximately 1inch to operate the drying cycle. To preventcontamination of wet packs and wrappeditems, do not open the door more than 1inch during the drying cycle. Press "StartCycle" to start the drying cycle.

When you press "Start Cycle," the DryingIndicator will be displayed, the chamber willheat to a low temperature and the selecteddrying time will begin to count down. At theend of the drying cycle, a five second alarmwill sound.

Optional Drying CyclesIf you desire to run a drying cycle without

running a sterilizing cycle with it, you may.Press the "Optional Cycle" button and scrollthe setpoint temperature below 100°C. Youwill enter a menu for an optional drying cycle.Set the drying time as instructed above, thenpress "Start Cycle" to begin the drying cycle.

OPERATION

WarningUse caution whenopening the sterilizerdoor. Stand to the sidebehind the door and opendoor slowly and partiallyto protect yourself fromescaping steam or boilingliquids and explodingflasks.

Do not attempt to opensterilizer door until thedisplay reads "CycleComplete." Pressurewithin the chamber couldcause the door to openwith extreme force,possibly causingpersonal injury.

40

Printer

The printer is a thermal printer that provides apaper tape record for future reference. The printedpaper tape is verification of sterilizer performance,load control identification and quality assurancechecks for each cycle.

The printer operates with electronic impulses onspecial paper. It requires no ribbons and thereforeno ribbon changing. The printer is located below thekeypad on the front of the sterilizer.

Printer Access

The printer is protected by a protective cover. Theprinter cover pulls off the front when you squeezethe pins on each side and pull forward. The printerwill then slide forward when you pull gently on themetal tab provided on the leading edge of theprinted circuit board.

The printed paper tape exits the printer through aslot in the access door. The slot also allows foreasily tearing off the paper tape as needed.

Paper Advance Button

A paper advance button is located on the upperright corner of the printer. Pressing the paperadvance button while the printer is inactive willadvance the paper through the printer. The paperadvance button is useful for installing a new roll ofpaper tape and for advancing a tape for tearing offat the end of a sterilization cycle.

CautionDo not allow steam from theopen chamber door tocontact the paper tape. Thesteam's heat will blacken thepaper, making the tapeunreadable.

NoteA colored stripe along theedge of the paper indicatesthat you are approaching theend of the tape. When thestripe appears,approximately 23 inches ofpaper remain, enough for 2-3cycles. Replace the tapebefore it is completelyexhausted to ensure acomplete record of yoursterilization procedures.

41

Paper Tape Rolls

The special heat sensitive paper for the printer isavailable from Barnstead|Thermolyne (Part NumberPRX2). The printer will not print on plain paper.Refer to the Maintenance section of this manual forpaper roll installation.

Printer Operation

The printer automatically records sterilizationcycles. During sterilization cycles, the printer printsthe chamber temperature, pressure and status ofcycle at one minute intervals. The operator has theoption of choosing not to use the printer.

Printer Tape Description

The printer tape is designed to be easily read as acycle is running, allowing you to exam at a glancethe progress of the current cycle. As a result, acomplete tape must be read from the bottom up.(Sample on page 41)

When you turn on the sterilizer, the printer willprint "Barnstead|Thermolyne Sterilemax" and thesoftware version number. This will print onlyimmediately after the sterilizer has been turned on.

When you press one of the preset cycle buttons,the printer will print the name of the cycle selected,the parameters set for that cycle and the selectedpressure units. If you choose a default optionalcycle, the printer will print the current defaultparameters. If you bypass the default optional cyclefor a standard, the printer will print only the name ofthe cycle and the selected pressure units, since theparameters have not been set.

PRINTER

42

When you press "Start Cycle", the printer willprint the number of cycles that have been run sincethe unit was turned on, the current date and time,the notation "Cycle Started" and column headers.

During the cycle, the printer will print the elapsedtime, the current chamber temperature and thecurrent chamber pressure at one minute intervals,along with a status notation.

When the sterilizer chamber achieves thetemperature set by the cycle parameters, the printerwill immediately print a record line, regardless ofthe time since the last record was printed. Thestatus notation will change from "Heatup" to "Exp",indicating that the load is being exposed to thetemperature set forth in the cycle parameters. Theprinter will continue to print record lines at oneminute increments, starting one minute after therecord line printed at the start of the exposurephase but still showing the total elapsed time for thecycle.

When the sterilizer has achieved the timecondition set in the cycle parameters, the printer willprint "Vent" in the cycle status column, indicatingthat the sterilizer is venting.

At the end of the vent phase, the printer will print"Venting Cycle Completed" and instructions forstarting the drying cycle. There is no printout duringthe drying cycle.

Printer Record Storage

In addition to being heat-sensitive, the paper tape isalso light sensitive and will darken if left exposed tolight for an extended length of time. To ensure thelong-term legibility of your records, it isimportant that you keep your printed tapes in adry, cool, dark place.

PRINTER

43

Software version number printswhen you turn on the sterilizer.

Name of preset program chosen forthis cycle

Parameters for this programmed cycle(default for this preset program)

Currently chosen pressure units

Date and time of cycle initiation

Cycle record number for day

Column Headers

Elapsed time since cycle started

Chamber Temperature

Chamber Pressure

Current status of the cycle

Exact point at which sterilizationphase begins.

Elapsed time increments by minutesfrom start of sterilization phase

Instructions for drying

End of cycle

VentPhase

ExposurePhase

HeatupPhase

PRINTER

Printer Mode is (USED)Version 3.0SterilemaxBarnstead|Thermolyne

44

Special Operating Conditions

Emergency Off (Cycle Abort)

Pressing the "Stop" button will immediatelyterminate sterilization. Allow the sterilizer to cooland press the "Stop" button again to reset thesterilizer. Proceed with a new sterilization cyclenormally.

When terminating a load, pressing the "Stop"button will vent steam from the chamber back intothe reservoir.

Resetting the Automatic OTP

Display shows: "Cycle Aborted Due to AUTO OTPDevice. Press Stop Shutoff Unit Power to Reset."

1. Press the "Stop" button.

2. Wait for the display to read "Select Cycle".

3. Turn Power Switch off and then on to resetthe Low Water Cutoff.

4. Open the chamber door and allow thechamber to cool.

5. Select your desired cycle and run thecycle with a loaded chamber to verifyoperation.

6. In the event of a repetition of fault callBarnstead Thermolyne Customer Service.

WarningDo not attempt to opensterilizer door until thedisplay reads "CycleComplete". Pressure withinthe chamber could cause thedoor to open with extremeforce, possibly causingpersonal injury.

Reprocess your load in theevent the sterilizing cyclehas been terminatedprematurely. The load maynot be sterile when thesterilizing cycle has beenterminated prematurely.

Failure to drain excess waterfrom the sterilizer chamberafter a cycle abort may resultin subsequent unsterile loadsas a result of contact withwater in the chamber.Always drain excess waterfrom the chamber afteraborting a cycle.

Allow chamber to cool beforedraining excess water.

NoteIf display shows: "The MechanicalOTP has Tripped. Shutoff UnitPower and Reset - Caution - UnitHot!!" Reset as described under"Resetting the Mechanical OTPSensor" in Service Manual.

45

SPECIAL OPERATING SITUATIONS

WarningReprocess your load inthe event the sterilizingcycle has been terminatedprematurely. The loadmay not be sterile whenthe sterilizing cycle hasbeen terminatedprematurely.

WarningReprocess your load inthe event the sterilizingcycle has beenterminated prematurely.The load may not besterile when the sterilizingcycle has beenterminated prematurely.

Erratic Controls Display orOperation

Abnormal sterilizer operation or controls displaycould be caused by an internal or external electricalvoltage surge. Such a voltage surge could because be any of a number of events: a momentarysurge in the power supply, a nearby lighteningstorm, or even a static electrical charge carried byoperating personnel.

Abnormal operation or displays are not commonoccurrences and may never happen. No damage tothe equipment will occur if such an event shouldhappen.

If an abnormal condition should occur, terminateany processing cycle in process. (Press "Stop.")Reset the sterilizer by turning the power switch (onthe front right corner of the unit) to OFF. Wait 30seconds and turn the power switch back on. Selectyour desired cycle and proceed with normaloperation.

Power Failure During SterilizingCycleAll Selector/Indicator Panel lights will be off.

Allow the unit to cool. Reset the sterilizer byturning the power switch (under the front rightcorner of the unit) to OFF. Wait 30 seconds andturn the power switch back on. Drain excess waterfrom the sterilizer chamber. Then reprocess yourload normally.

46

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Maintenance Schedule Chart

49

Maintenance

Daily Maintenance

Cleaning Door GasketThe door gasket and the mating surface should bewiped clean each day with a clean, damp cloth. Donot use abrasive cleaners on the gasket or matingsurface.

The gasket should be examined for cracks anddamage that could result in a poor pressure seal. Ifreplacement is necessary, refer to GasketReplacement under the When Required heading ofthis Maintenance section.

Cleaning After Liquid LoadsBiological media tends to boil at a higher rate thanother liquids during venting. This causes media tobe spattered inside the chamber. Therefore, thechamber must be cleaned daily when you aresterilizing media. Clean as follows:

1. Allow unit to cool.

2. Wipe out chamber and door with a clean,damp cloth.

Weekly Maintenance(More often if necessary.)

Cleaning Chamber, Trays and RackAt least once a week, the trays and tray rack shouldbe removed from the sterilizer chamber. The trays,tray rack and chamber should be thoroughlycleaned to remove any deposits from the surfaces.

WarningRefer servicing to qualifiedpersonnel.

Never use a wire brush, steelwool, abrasive material, orchloride-containing productsto clean door and chamberassembly.

"Caution: Hot Surface. AvoidContact." Ensure that thesterilizer is cool beforecleaning to avoid burns.

CautionFailure to keep the interior ofthe stainless steel chamberfree of mineral deposits anddebris can cause prematurefailure of the sterilizer.

WarningTo prevent collection ofmineral deposits andcorrosion of chambercomponents, use distilled ordeionized water only asspecified. Clean chamberafter each use if sterilizingsaline solutions.

50

Clean the trays, rack and chamber (especially thebottom of the chamber) with appropriate anti-biological cleaners. Wipe all residue from thesurfaces with a dampened, lint-free cloth.

Monthly Maintenance

Pressure Relief Valve CheckTo ensure that the pressure relief valve isfunctioning properly, you must have a qualifiedperson check the valve each month.

The pressure relief valve is located on thepressure line in the back of the unit and is accessedthrough a round access hole in the back panel. Asuitable tool (screwdriver, rod, etc.) will be neededto test the pressure valve.

1. Run a sterilize cycle at 135°C (275°F)without a load in the chamber.

2. Allow the pressure in the chamber toreach 30 psi (206 kPa).

3. Insert a suitable tool through the accesshole and push the lever on the pressurerelief valve. Push the valve lever awayfrom the valve to open the valve. Hold thevalve open for 3 seconds. Steam shoulddischarge freely.

4. Release the valve lever. The steamdischarge should cease entirely.

5. After checking the valve, turn the sterilizeroff by pressing "Stop" to preventoverheating.

If the valve malfunctions, the valve must bereplaced.

MAINTENANCE

WarningPressurized steam will bedischarged when the reliefvalve is opened. To preventburns, place a steam barrier(such as a rolled towel)around the opening in theback of the unit. To preventburns, wear gloves or use anextension device if itbecomes necessary tooperate the pull ring.

51

Cleaning Reservoir1. The reservoir drain assembly is located on

the lower right front side of the sterilizercabinet. Place a suitable container belowthe drain assembly. Connect the drainadapter and tube to the drain assemblyand drain the reservoir into the container.

2. When the reservoir is empty, wipe out theinside of the reservoir with a clean, lint-free cloth. Take care not to push debrisback into the water line.

3. Refill the reservoir with distilled or lowquality water and replace the reservoircover.

MAINTENANCE

NoteIn the event that you havelost the supplied draintubing, you can drain thereservoir as follows:

1. Tilt the front of the sterilizerup until you can access thesmall panel on the bottomfront of the sterilizer, beneaththe drain assembly.

2. Remove the screws securingthe panel. Remove thepanel.

3. Have a suitable containerprepared for the water in thereservoir. Disconnect thereservoir drain tube from thequick disconnect fixture onthe front of the sterilizer. Thereservoir will drain.

NoteDo not add more than 7 litersof water to the reservoir aftercleaning.

52

Maintenance To Be Done AsRequired

Paper Tape Roll InstallationThe heat sensitive paper will print on only one side,and therefore must be installed properly to function.

1. Remove the printer cover and pull out theprinter as described in Printer Access onpage 39.

2. Cut the lead end of the paper as shown inthe illustration. Install the paper roll on thepaper roll shaft. Note that the paper feedsfrom the top forward.

3. Feed the cut end of the paper into the slotat the bottom of the printer. Push thepaper into the printer until it stops. Pressthe "Paper Feed" button on the printer untilthe tip of the paper comes out the top ofthe printer.

4. Pull enough paper through to be insertedthrough the slot in the cover. Push theprinter back in.

5. Feed the paper through the cover andreplace the cover.

At the end of each day, the printed portionof the printer tape should be removed andstored properly. See "Printer RecordStorage" for details.

MAINTENANCE

53

Changing Door Gasket

1. Disconnect the sterilizer from the powersupply. Ensure that the sterilizer is cooland depressurized.

2. Remove the old gasket by pulling it out ofthe door.

3. Use a warm, soapy water combination tolubricate the gasket for easier installation.

4. Working around the door from one point,insert the outer edge of the gasket underthe machined lip of the gasket groove inthe door.

5. Working around the door from one point,press the inner edge of the gasket into thegasket groove, ensuring that the gasket isfully seated in the groove.

6. Reconnect the sterilizer to the powersupply.

MAINTENANCE

54

Figures

Reservoir Cover

Solenoid PCBoard

OTP PC Board

Power SupplyBoard

Power Module

Transformer Fuses

Pump

Main Control Board

Analog PC Control Board

Membrane PanelPrinter Cover

On/Off Switch

Door Release

Door Handle

Sterilizer Component Layout - Interior

55

FIGURES

Sterilzer Component Layout - Chamber and Door

56

FIGURES

Solid StateRelay

OTP Mechanical Relay

Pressure Relief VaveCalibration Port Temperature Sensor

Fan

Vent Solenoid

Vent Line

Insulation

Reservoir

Pressure Transducer

Insulation SupportBracket

Door Switch

Sterilizer Component Layout - Top View

57

Parts List

100 V 120 V 220V~Qty. Description Part No. Part No. Part No.1 Printer Paper Tape Roll PRX2 PRX2 PRX22 Solenoid Valve RY759X1A RY759X1A RY759X1A1 PC Board (Power Supply) PC759X4A PC759X4A PC759X4A

Transformer TN759X1A TN759X1A TN759X2APC Board (Solenoid) PC1118X5 PC1118X5 PC1118X5Pressure Relief Valve 250052401 250052401 250052401Tank, Lower Float SW759X1A SW759X1A SW759X1APC Board (Logic)w/printer PC1118X3 PC1118X3 PC1118X3PC Board (Logic)w/o printer PC1118X3 PC1118X3 PC1118X4PC Board (Analog) PC1118X1 PC1118X1 PC1118X1ON/OFF Switch SWX141 SWX141 SWX104Terminal Strip TRX177 TRX177 TRX177Relay Contact RYX60 RYX60 RYX60Pump PUX16 PUX16 PUX16Printer Cover CV759X5 CV759X5 CV759X5Printer AYX3 AYX3 AYX3Door Gasket GS759X1A GS759X1A GS759X1AFan FA981X1A FA981X1A FA759X1AHeater ELX8 ELX9 ELX10Gasket (Chamber) GS759X4 GS759X4 GS759X4Relay, Solid State RYX34 RYX34 RYX34PC Board (OTP) PC1118X2 PC1118X2 PC1118X2Tray (Large) TY759X2A TY759X2A TY759X2ATray (Small) TY759X3A TY759X3A TY759X3ADoor Switch SW759X2A SW759X2A SW759X4AMembrane Panel SW759X3 SW759X3 SW759X3Water Reservoir TY759X1 TY759X1 ` TY759X1Safety Latch SF759X1A SF759X1A SF759X1AShaft Ass'y (Main Door Latch) SF759X2A SF759X2A SF759X2APressure Pin (Door) SP759X1 SP759X1 SP759X1

2 Handle (Yoke Assembly) HNX18 HNX18 HNX181 Drain Tube Assembly TU759X9A TU759X9A TU759X9A

Reservoir Cover DL759X2 DL759X2 DL759X2Chamber Temp. Sensor RS759X1A RS759X1A RS759X3AAutomatic OTP Sensor RS759X2A RS759X2A RS759X2AMechanical OTP Sensor FZ759X1 FZ759X1 FZ759X1Line Filter CAX104

2 Fuse (Type Slow Blow,250V, 1.6 amp) FZX47 FZX47 FZX47

1 Pressure Transducer TDX5 TDX5 TDX5

WarningReplace fuses with same type and rating

58

Ordering Procedures

Please refer to the Specification Plate for the complete model number, serial number, andseries number when requesting service, replacement parts or in any correspondenceconcerning this unit.

All parts listed herein may be ordered from the Barnstead Thermolyne dealer from whomyou purchased this unit or can be obtained promptly from the factory. When service orreplacement parts are needed we ask that you check first with your dealer. If the dealercannot handle your request, then contact our Customer Service Department at 319-556-2241 or 800-553-0039.

Prior to returning any materials to Barnstead Thermolyne Corp. , please contact ourCustomer Service Department for a “Return Goods Authorization” number (RGA). MaterialReturned without an RGA number will be returned.

59

Decontamination Statement

We cannot accept any product or component sent to Barnstead|Thermolyne for repair orcredit that is contaminated with or has been exposed to potentially infectious agents orradioactive materials.

No product or component will be accepted without a "Return Goods Authorization" (RGA)number.

60

Barnstead|Thermolyne Corporation warrants that if a product manufactured by Barnstead|Thermolyne andsold by it within the continental United States or Canada proves to be defective in material or construction, itwill provide you, without charge, for a period of ninety (90) days, the labor, and a period of one (1) year, theparts, necessary to remedy any such defect. Outside the continental United States and Canada, the warrantyprovides, for one (1) year, the parts necessary to remedy any such defect. The warranty period shallcommence either six (6) months following the date the product is sold by Barnstead|Thermolyne or on thedate it is purchased by the original retail consumer, whichever date occurs first.

All warranty inspections and repairs must be performed by and parts obtained from an authorizedBarnstead|Thermolyne dealer or Barnstead|Thermolyne (at its own discretion). Heating elements, however,because of their susceptibility to overheating and contamination, must be returned to our factory, and if, uponinspection, it is concluded that failure is not due to excessive high temperature or contamination, warrantyreplacement will be provided by Barnstead|Thermolyne . The name of the authorized Barnstead|Thermolynedealer nearest you may be obtained by calling 1-800-446-6060 (319-556-2241) or writing to:

Barnstead|ThermolyneP.O. Box 797

2555 Kerper BoulevardDubuque, IA 52004-0797

USAFAX: (319) 589-0516

E-MAIL ADDRESS: [email protected]

Barnstead|Thermolyne’s sole obligation with respect to its product shall be to repair or (at its own discretion)replace the product. Under no circumstances shall it be liable for incidental or consequential damage.

THE WARRANTY STATED HEREIN IS THE SOLE WARRANTY APPLICABLE TO Barnstead|ThermolynePRODUCTS. Barnstead|Thermolyne EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES,EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR USE.

One Year Limited Warranty

9001ISOREGISTERED

Barnstead|Thermolyne2555 Kerper Blvd.P.O. Box 797Dubuque, IA 52004-2241Phone: 319-556-2241 800-553-0039Fax: 319-589-0516E-Mail Address: [email protected]

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