Thermo Scientific ST75920-33 Operation Manual
Thermo Scientific ST75920-33 Operation Manual

Thermo Scientific ST75920-33 Operation Manual

Table top steam sterilizer
Table of Contents

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Sterilemax
Table Top Steam Sterilizer
Operation Manual
Series 1277
Model Numbers
Voltage
ST75925
120V
ST75920-33
220V
LT1277X1 • 5/23/07
Serial Number

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Table of Contents
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Summary of Contents for Thermo Scientific ST75920-33

  • Page 1 Sterilemax Table Top Steam Sterilizer Operation Manual Series 1277 Model Numbers Voltage ST75925 120V ST75920-33 220V LT1277X1 • 5/23/07 Serial Number...
  • Page 2 Sterilemax Table Top Sterilizer...
  • Page 3: Table Of Contents

    Table of Contents Introduction................................5 Safety Information ..............................6 Warnings ................................6 Specifications ..............................9 Trays ................................9 Dimensions ..............................9 Shipping Weight ..............................9 Electrical ................................9 Standards ................................9 Reservoir Water ..............................9 Mounting ................................9 Controls................................9 Environmental Conditions ..........................10 Declaration of Conformity ..........................10 Description ................................11 Operational Programs ............................11 Program Summary Chart ..........................12 Controls................................13 Sterilizer Features ............................14...
  • Page 4 ABLE OF ONTENTS Control Panel ..............................39 Installing the Paper Roll ..........................40 Printer Operation............................40 Printer Tape Description ..........................41 Printer Record Storage ..........................42 Special Operating Instructions ..........................44 Emergency Off (Cycle Abort) ........................44 Resetting Automatic OTP ..........................44 Erratic Controls Display or Operation ......................45 Power Failure During Sterilizing Cycle ......................45 Problem Solving Chart ..........................46 Maintenance Schedule Chart ........................48...
  • Page 5: Introduction

    Introduction This Thermo Scientific Sterilemax Table Top steam sterilizer has been designed for use in medical and dental offices, uni- versity laboratories, clinics, hospitals and other locations Warning where a variety of materials require sterilizing. Do not use this equipment for...
  • Page 6: Safety Information

    Safety Information Warnings Alert Signals Do not use this equipment for any purpose other than its intended use, described in this manual. Use only self-venting, automatic sealing stoppers Warning when processing liquids or media. Use of other stop- Warnings alert you to a possibility of pers or seals, or lack of stoppers, will create the pos- personal injury.
  • Page 7 AFETY NFORMATION Do not use the sterilizer to process volatile sub- stances or materials which could release toxic or explosive substances. 10. Connect only to an electrical circuit of the appropri- ate voltage and load rating. 11. Do not overfill reservoir. To avoid slippery condi- tions and possible load recontamination, immedi- ately wipe up all spillage resulting from overfilling chamber or reservoir.
  • Page 8 AFETY NFORMATION tubes, the bottles and tubes should contain no more than 3/4 the total volume of the container. Chamber should be cleaned daily when process- ing media. 19. Keep patients at least six (6) feet away from the sterilizer when it is in use. 20.
  • Page 9: Specifications

    Specifications Trays Electrical Controls Fixed Cycles - Liquid Tray Dimensions Heater Power - Packs Large - 15 1/2" x 9 3/16" 1500 W - Wrapped (39.4 x 23.3 cm) - Unwrapped Small - 15 1/2" x 6" Optional Cycle Power requirements (39.4 x 15.2 cm) 120V, 50/60 Hz, 12.5 Amps 220V, 50/60 Hz, 6.5 Amps...
  • Page 10: Environmental Conditions

    PECIFICATIONS Environmental Conditions Operating: 4°C - 40°C; 20% - 80% relative humidity, noncondensing. Installation Category II (overvoltage) in accordance with IEC 664. Pollution Degree 2 in accordance with IEC 664. Altitude limit: 3,650 meters. Storage: -25°C - 65°C; 20% - 80% relative humidity. Declaration of Conformity 0086 (for 230 volt, CE models only)
  • Page 11: Description

    Description Operational Programs The sterilizer has four preset cycles which have been opti- mized to provide excellent results for most applications. In addition, there is one optional cycle that allows you to set your own sterilization parameters. You access the pre-pro- grammed cycles by pushing one of the four green fixed-cycle buttons.
  • Page 12: Program Summary Chart

    ESCRIPTION Note When sterilizing handpieces, refer to the manufacturer's specifications on handpieces for contra indication of sterilization parameters. Program Summary Chart l i r i t s e l l q i l ° 1 ° 0 n i l c i l : t l c i t...
  • Page 13: Controls

    ESCRIPTION Controls All cycles and programming are selected and set in using the front touchpad selector buttons. Power Switch The Power Switch turns power to the unit on and off. When you turn the power on, the display will be set to select a steril- ization cycle.
  • Page 14: Sterilizer Features

    ESCRIPTION Sterilizer Features Optional Printer The optional printer available is an impact printer that records each cycle's performance. See page 39 for more information. Pressure Monitor The pressure monitor indicates the pressure inside the chamber. This monitor's readings can be found on the display as each cycle is running.
  • Page 15 ESCRIPTION access hole is located in the back panel to allow you to peri- odically check relief valve operation. Reservoir Drain A drain assembly is provided to empty the reservoir. The reservoir drain assembly and plug are located at the lower right of the chamber opening on the front of the sterilizer (as you face the unit).
  • Page 16: Installation

    Installation Location For optimum performance of your sterilizer, the sterilizer should be installed in conformance to the following parame- ters: Surface For proper operation, the sterilizer must be placed on a level, heat and water resistant surface. If the surface is not level, Caution the water in the sterilizer will be unevenly distributed, possibly The surface beneath the sterilizer...
  • Page 17: Electrical Connections

    NSTALLATION Check for any foreign material in the chamber. Wipe clean with a damp, lint-free cloth if neces- sary. Electrical Connections We recommend that you use a separate (dedicated) circuit Warning for this sterilizer. Ensure that the circuit is rated for the load. Connect only to an electrical cir- (See Electrical Specifications.) cuit of the appropriate voltage and...
  • Page 18: Installation Instructions

    Optional Non-Recirculating Tank NOTE: If you did not purchase an optional non-recirculation tank, please proceed to Altitude Adjustment Installation Instructions To connect the non-recirculating water accessory to the back of the sterilizer. a. Unplug the sterilizer power cord. Allow the unit to cool to room temperature.
  • Page 19 PTIONAL ECIRCULATING Install the cap removed in step c. To the fitting located in the reservoir. See Cap Replacement Fill the cooling tank with distilled or deionized water until the water begins to overflow from the cooling tank into the collection bottle (or into the drain if the overflow tube is installed).
  • Page 20: Altitude Adjustment

    Altitude Adjustment For proper operation, the sterilizer program accounts for the altitude in controlling certain functions. The sterilizer is shipped with a factory-set altitude value suitable for all alti- tudes up to an altitude of 1000 feet above sea level. If your altitude is above 1000 feet above sea level, you will need to enter a new value for the altitude adjustment.
  • Page 21: Display Parameter Setup

    Display Parameter Setup Setting Month/Date/Year/Hour/ Minute Note To set the current date and time: From the "Select Cycle" screen, press the "Select" Sterilemax sterilizers are shipped key and then the up arrow key. with the display units set as fol- lows: Wait for the sterilizer to display the "Change Time"...
  • Page 22: Changing Temperature Units

    ISPLAY ARAMETER ETUP Note If you desire to change the pres- Changing Temperature Units sure units, press the up arrow to To change the units in which the chamber temperature is dis- select "Yes", then refer to played on the digital display and printer tape (°C or °F): "Changing Pressure Units."...
  • Page 23: Changing Printer Mode

    ISPLAY ARAMETER ETUP At the "Change Pressure Units" screen, press the up arrow key to select "Yes." At the "Pressure Units" screen, press the up arrow to cycle between the three available units. When you have selected your desired pressure units, press the "Start"...
  • Page 24: Sterilization Procedures

    Sterilization Procedures Warning Materials Appropriate For Steam Do not attempt to sterilize volatile Sterilization or toxic substances. Serious injury or death could result. • Straight stainless steel instruments • Surgical stainless steel hinged instruments • Pouches of instruments Caution • Carbon steel instruments (see special Do not attempt to sterilize any preparation instructions) object composed of materials...
  • Page 25: Instrument Cleaning Prior To Sterilization

    TERILIZATION ROCEDURES Warning Thoroughly clean instruments Instrument Cleaning Prior To before placing them in the steriliz- Sterilization er. Sterilizing items contaminated with blood or debris will impede Transport soiled instruments to your cleanup area on a tray. sterilization and may result in Sort out any instruments unsuitable for sterilization (see list unsterile instruments, which may on page 24).
  • Page 26: Preparation Of Carbon Steel Instruments

    TERILIZATION ROCEDURES Preparation of Carbon Steel Instruments Carbon steel instruments must be carefully prepared prior to sterilization to prevent rusting. After cleaning according to the manufacturer's recommendations or the methods presented Note in Instrument Cleaning Prior To Sterilization, prepare car- Do not place carbon steel instru- bon steel instruments as follows: ments directly onto stainless steel...
  • Page 27 TERILIZATION ROCEDURES Remove the covers from empty containers. Stand the containers and covers on their sides. Caution Turn curved vessels upside down so no water will Do not mix different metals in the collect in the vessel. same pack or wrapping or loose on the same tray.
  • Page 28 TERILIZATION ROCEDURES Items to be Sterilized Wrapped Cleaned items may be wrapped individually in autoclave Warning paper or placed in commercially prepared autoclave bags. Do Do not wrap packs tightly and do not wrap tightly. Seal with autoclave tape or heat sealer. not over fill autoclave bags.
  • Page 29 TERILIZATION ROCEDURES Items to be Sterilized on Wrapped Trays Warning Place cleaned items loose in the bottom of a lined, perforated Do not seal with staples, pins or tray. Additional layers of instruments may be added, separat- other methods which will puncture ed by fabric.
  • Page 30 TERILIZATION ROCEDURES Caution absorbent material into the central area of the glove. Place a Do not use detergents with a high strip of muslin or other absorbent material around the cuff and chlorine or phosphate content or fold the cuff back over it. Wrap the gloves in muslin or other chlorine bleach when laundering appropriate wrapping material.
  • Page 31: Loading The Sterilizer Chamber

    TERILIZATION ROCEDURES Loading the Sterilizer Chamber Warning Use only self-venting, automatic sealing stoppers when processing Loading Guidelines liquids or media. Use of other When processing wrapped goods, fabrics and stoppers or seals, or lack of stop- dressings, always place items in one of the three pers, will create the possibility of upper positions in the chamber.
  • Page 32: Handling Sterilized Materials

    TERILIZATION ROCEDURES Handling Sterilized Materials Warning Loads may be removed from the sterilizer at the end of the Sterilizer and trays will be hot drying cycle. (Liquids may be removed at the end of the steril- after cycle is run. Always wear ization cycle.) Unwrapped items should be used immediately.
  • Page 33: Recommended Monitoring

    Recommended Monitoring All functions of a sterilizer should be monitored to provide maximum assurance of proper performance. Note Process Monitoring Refer to the manufacturer's recom- For assurance that minimum sterilizing conditions have been mendations for proper use of biologi- achieved, we recommend the use of a process monitor with cal indicators.
  • Page 34: Biological Indicators

    ECOMMENDED ONITORING Biological Indicators Note Process monitors do not by themselves prove steriliza- Refer to the manufacturer's recommenda- tion has occurred. Biological indicators composed of tions for proper use of biological indica- spores of standard organisms are considered the most tors.
  • Page 35 ECOMMENDED ONITORING Packs Textiles Prepare a pack of 14 towels (per AAMI ST-8). Place three biological indicators in the center of the pack, between the sixth and seventh towels. Wrap the pack with two strips of autoclave tape, placing the tape around the width of the pack so that the two strips divide the length of the pack into thirds.
  • Page 36: Operation

    Operation Connect the power cord to the unit and to a grounded outlet of appropriate voltage and rating. Warning Keep patients at least six (6) feet away from the sterilizer when it is Initial Startup in use. Do not operate this sterilizer in the presence of flammable or explo- Power On sive substances (such as anes-...
  • Page 37: Outline Of Operation

    PERATION Outline of Operation Two basic steps are required to initiate a sterilizing cycle after the load has been placed in the chamber and the door closed and latched: Select the cycle you desire. Follow the displayed directions for the cycle. Cycle selections cannot be changed once "Start Cycle"...
  • Page 38: Drying Sterilized Loads

    PERATION Setting Drying Time (For Pack, Wrapped and Unwrapped cycles only.) If drying is desired, set the drying time when you select the sterilization cycle. After you select a Pack, Wrapped or Unwrapped cycle, the cycle parameters will be displayed. After the parameters have been displayed, you will be prompted to enter a figure for drying time.
  • Page 39: Optional Printer

    Optional Printer The optional printer provides a paper tape record for future reference and verifies sterilizer performance, load control identification and quality assurance checks for each cycle. During a sterilization cycle, the printer prints a record of the chamber temperature, pressure and status of the cycle at 1- minute intervals.
  • Page 40: Installing The Paper Roll

    RINTER Paper Feed Button Press this button once to advance the tape one line, or hold the button down to advance paper continuously. When the paper roll nears the end, the red PAPER OUT light will illumi- nate. If the red ERROR light illuminates, the printer is off line. This could be a result of the print head being too hot, in which case the printer will resume printing once it cools down;...
  • Page 41: Printer Tape Description

    RINTER Printer Tape Description The printer tape is designed to be easily read as a cycle is running, allowing you to exam at a glance the progress of the current cycle. As a result, a complete tape must be read from the bottom up.
  • Page 42: Printer Record Storage

    RINTER When the sterilizer has achieved the time condition set in the cycle parameters, the printer will print "Vent" in the cycle status column, indicating that the sterilizer is venting. At the end of the vent phase, the printer will print "Venting Cycle Completed"...
  • Page 43 RINTER Instructions for drying End of cycle Vent Phase Exposure Phase Elapsed time increments by minutes from start of sterilization phase Exact point at which sterilization phase begins. Heatup Current status of the cycle Phase Chamber Pressure Chamber Temperature Elapsed time since cycle started Column Headers Date and time of cycle initiation Cycle record number for day...
  • Page 44: Special Operating Instructions

    Special Operating Conditions Emergency Off (Cycle Abort) Warning Do not attempt to open sterilizer Pressing the "Stop" button will immediately terminate steriliza- door until the display reads "Cycle tion. Allow the sterilizer to cool and press the "Stop" button Complete". Pressure within the again to reset the sterilizer.
  • Page 45: Erratic Controls Display Or Operation

    PECIAL PERATING ITUATIONS Erratic Controls Display or Warning Operation Reprocess your load in the Abnormal sterilizer operation or controls display could be event the sterilizing cycle has caused by an internal or external electrical voltage surge. been terminated prematurely. Such a voltage surge could be cause be any of a number of The load may not be sterile events: a momentary surge in the power supply, a nearby when the sterilizing cycle has...
  • Page 46: Problem Solving Chart

    Problem Solving Chart Fault Indication Fault Cause Solution l l i f " f i c " . t s " z i l l l i " . t " e l i o l l " . 5° °...
  • Page 47 ROBLEM OLVING HART , t r c t i " l l i f . r i l l i z i l " . P " , i s " . " " . o l l i l e .
  • Page 48: Maintenance Schedule Chart

    Maintenance Schedule Chart Maintenance Required Person Responsible Daily Clean Door Gasket User Clean Chamber* User Weekly Clean Chamber, Trays and Rack User Monthly Check Pressure Relief Valve Qualified Service Personnel Clean Reservoir User Yearly Temperature Readout Verification Qualified Service Personnel As Required Install Paper Roll User...
  • Page 49: Maintenance

    Maintenance Warning Daily Maintenance Refer servicing to qualified person- nel. Cleaning Door Gasket Never use a wire brush, steel wool, abrasive material, or chlo- The door gasket and the mating surface should be wiped ride-containing products to clean clean each day with a clean, damp cloth. Do not use abra- door and chamber assembly.
  • Page 50: Monthly Maintenance

    AINTENANCE Monthly Maintenance Pressure Relief Valve Check To ensure that the pressure relief valve is functioning proper- ly, you must have a qualified person check the valve each month. Warning The pressure relief valve is located on the pressure Pressurized steam will be dis- line in the back of the unit and is accessed through a round charged when the relief valve is access hole in the back panel.
  • Page 51: Emptying Collection Bottle

    AINTENANCE Emptying Collection Bottle Empty the collection bottle when the water in the bottle reaches the FULL mark. Slide the bottle away from the cooling tank to remove. Pour the contents down the drain. Warning BURN HAZARD: Do not empty the Waste Water Optional Cooling...
  • Page 52: Cleaning Non-Recirculating Water Cooling Tank

    AINTENANCE Cleaning Non-Recirculating Water Warning Cooling Tank BURN HAZARD: Do not clean the tank when the sterilizer is in opera- The non-recirculating water cooling tank should be drained tion. Allow the non-recirculating cool- and rinsed out every six months. Do not clean the tank when ing tank to cool to room temperature the sterilizer is in operation.
  • Page 53: Changing Door Gasket

    AINTENANCE Changing Door Gasket Disconnect the sterilizer from the power supply. Ensure that the sterilizer is cool and depressur- ized. Remove the old gasket by pulling it out of the door. Use a warm, soapy water combination to lubricate the gasket for easier installation. Working around the door from one point, insert the outer edge of the gasket under the machined lip of the gasket groove in the door.
  • Page 54: Figures

    Figures Reservoir Cover Solenoid PC Board Power Supply Board With Sheild Cover OTP PC Board Door Handle Power Module Door Release Pump Main Control Board Membrane Panel On/Off Switch (underneath) Sterilizer Component Layout - Interior...
  • Page 55 IGURES Rack Door Switch Trays Door Interlock Reservoir Drain Sterilizer Component Layout - Chamber and Door...
  • Page 56 IGURES OTP Mechanical Relay Pressure Relief Valve Solid State Calibration Port Relay Vent Solenoid Temperature Sensor Insulation Reservoir Pressure Transducer Insulation Support Bracket Insulation Support Bracket Door Switch Sterilizer Component Layout - Top View...
  • Page 57: Parts List

    Parts List Warning Replace fuses with same type and rating 120 V 220V~ Qty. Description Part No. Part No. Printer Ribbon AYX21 AYX21 Printer Paper Tape Roll AY669X4 AY669X4 Solenoid Valve RY759X1A RY759X1A Power Supply TNX116 TNX116 PC Board (Solenoid) PC1277X2 PC1277X2 Pressure Relief Valve...
  • Page 58: Ordering Procedures

    Ordering Procedures Please refer to the Specification Plate for the complete model number, serial number, and series number when requesting service, replacement parts or in any correspondence con- cerning this unit. All parts listed herein may be ordered from the Thermo Scientific dealer from whom you purchased this unit or can be obtained promptly from the factory.
  • Page 59: Decontamination Statement

    Decontamination Statement We cannot accept any product or component sent for repair or credit that is contaminated with or has been exposed to potentially infectious agents or radioactive materials. No product or component will be accepted without a "Return Materials Authorization" (RMA) number.
  • Page 60: One Year Limited Warranty

    One Year Limited Warranty This Thermo Scientific product shall be free of defects in materials and workmanship for one (1) year from the first to occur of (i) the date the product is sold by the manufacturer or (ii) the date the product is purchased by the origi- nal retail customer (the "Commencement Date").

This manual is also suitable for:

St75925Sterilemax 1277 series

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