Steris AMSCO 400 Medium 36 H Operator's Manual
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Steris AMSCO 400 Medium 36 H Operator's Manual

Steris AMSCO 400 Medium 36 H Operator's Manual

Steam sterilizers
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129394068
en
Revision AE
AMSCO
®
Medium
Steam Sterilizers
Operator Manual
26"x37.5"
400 Series

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Summary of Contents for Steris AMSCO 400 Medium 36 H

  • Page 1 AMSCO 400 Series ® Medium Steam Sterilizers Operator Manual 26"x37.5" 129394068 Revision AE...
  • Page 2 © 2025 STERIS. All rights reserved. Published: 2025-2-11 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 3: Service Information

    STERIS Corporation carries a complete line of accessories for this unit to simplify, organize and assure the conditions for item processing have been achieved. Instrument trays, pouches and biological/chemical monitoring systems are all available to fulfill your facility’s processing needs.
  • Page 4 Table -1. Factory Default Cycles for AMSCO 400 Series 36 H, 48 H, 60 H, 36 SL, 48 SL and 60 SL Sterilizers Cycles Sterilize Sterilize Dry Time Recommended Validation Temperature Time Load* Standard 1. Prevac Cycle 270°F 4 Minutes 30 Minutes Double- ST-8:2008...
  • Page 5 Table -3. Maximum Loads by Sterilizer Chamber Size* Model Number Chamber Size Wrapped Fabric Packs Liquid Cycle Instrument Trays Only: Number of 1000 mL Containers for Full Load 36 H, 36 SL 26 x 37.5 x 36” (660 x 953 x 914 mm) 48 H, 48 SL 26 x 37.5 x 48"...

  • Page 6: Associated Publications

    To help ensure operators are adequately trained in the safe use of the equipment, STERIS recommends initial training and periodic proficiency training of all personnel concerned with the operation and maintenance of the equipment; that attendance records be maintained;...
  • Page 7 Internal Publications Description Document Number 129394140 26 x 37.5 x 36" Double-Door, Hinged, Recessed, One Wall 129394140 26 x 37.5 x 48" Double-Door, Hinged, Recessed, One Wall 129394140 26 x 37.5 x 60" Double-Door, Hinged, Recessed, One Wall 129394141 26 x 37.5, x 36" Double-Door, Hinged, Recessed, Two Wall 129394141 26 x 37.5 x 48"...
  • Page 8 viii 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 9: Table Of Contents

    TABLE OF CONTENTS Section Number Description Page Safety Precautions ..........................1 Symbols .............................. 6 Installation Verification ........................7 Introduction........................7 Installation Checklist ...................... 7 Service Clearance......................7 Plumbing Services ......................7 Electrical Service......................8 Sterilizer Final Check ...................... 8 Cycle Operation....................... 8 Technical Specifications........................
  • Page 10 Before Operating Sterilizer ..................37 Preparing Loads for Sterilization Cycles ..............39 Guidelines for Placement of Various Loads ..............39 Unloading the Sterilizer....................40 Loading Car and Transfer Carriage Instructions: Loading .......... 41 Loading Car Instructions: Unloading................42 Loading/Unloading Sterilizer: Rack and Shelves ............43 Prevacuum Sterilizer Cycles..................
  • Page 11 10.3 Atmospheric Pressure Alarm..................123 10.4 Board Over Temp Failure ...................123 10.5 Chamber Pressure Transducer Failure..............123 10.6 Chamber Pressure/Temperature Failure – Failure Reading Temp/PRS ....124 10.7 Chamber Temperature Probe Failure/Failure Reading Chamber T......124 10.8 Control (Printer Issues) ....................124 10.9 Cycle Starts Unexpectedly ..................125 10.10 Bowie-Dick Test Failed ....................125 10.11...

  • Page 12: Safety Precautions

    • Equipment maintenance other than described in the manual (unless by authorized representatives of the STERIS Corporation), shall be at the risk of invalidating the equipment warranty.
  • Page 13 1 — Safety Precautions WARNING BURN HAZARD When sterilizing liquids, to prevent personal injury or property damage resulting from bursting bottles and hot fluid, you must observe the following procedures: ● Use Liquid cycle only; no other cycle is safe for processing liquids. ●...
  • Page 14 The performance of the sterilizer is validated as a system including components defined by STERIS in the Operator Manual and Service Manual for the sterilizer. Substitution of unauthorized components can potentially lead to personal injury, damage or premature failure of the product and result in a unit configuration that is inconsistent with the validated product.
  • Page 15 1 — Safety Precautions CAUTION POSSIBLE EQUIPMENT DAMAGE Gasket must be fully retracted prior to operating sterilizer door. If 0 dry time is selected, sterilizer automatically initiates a vapor removal phase in place of drying. This phase can still draw a vacuum to 5 inHg. Consult device manufacturer’s recommendations to ensure devices being processed can withstand this depth of vacuum.
  • Page 16 1 — Safety Precautions Do not attempt to open sterilizer door during manual operation unless chamber is at 0 psig. During manual operation, gasket must be fully retracted prior to operating sterilizer door. Immediately wipe up saline solution spills on loading car to prevent damage to stainless steel. 129394068_AE AMSCO 400 Series Medium...

  • Page 17: Symbols

    2 — Symbols Symbols Refer to the STERIS Symbol Glossary for definitions at https://www.steris.com/symbol-glossary. 129394068_AE Operator Manual AMSCO 400 Series Medium ®...

  • Page 18: Installation Verification

    An Equipment Drawing showing all utility and space requirements was supplied with the equipment (another copy of this drawing can be acquired from STERIS upon request). Clearance space shown on the drawing is necessary for ease of installation and to assure proper operation and maintenance of equipment.

  • Page 19: Electrical Service

    3 — Installation Verification � Water Pressure – measured (specification is 20 to 50 psig [1.4 to 3.5 bar], dynamic). Water pressure supplied must be within specifications as shown on the Equipment Drawing. If pressure is too high, a regulator must be installed.

  • Page 20: Technical Specifications

    4 — Technical Specifications Technical Specifications 4.1 Overall Size W x L x H 36" Sterilizer: • Hinged Door— 44 x 58 x 75 1/4" (1118 x 1473 x 1911 mm) • Sliding Door— 70 x 59 x 75 1/4" (1778 x 1498 x 1911 mm) 48"...

  • Page 21: Techniques Of Sterilization

    NOTE: Contact STERIS for information on a wide range of education/ training programs designed to meet the educational needs of healthcare industries. As part of the operator’s verification of the sterilization process, biological indicators may be used to demonstrate that sterilization conditions have been met.

  • Page 22: Control Measures For Verifying Sterilization Process

    5 — Techniques of Sterilization Table 5-1. AMSCO 400 Series Prevacuum Medium Steam Sterilizer Cycles – 36H, 36SL, 48H, 48SL, 60H, 60SL (continued) Cycles: Sterilize Sterilize Time Dry Time Recommended Validation Temperature Load Standard Refer to Table -3 Recommended Quantities 4 minutes 5 Minutes Prevacuum Cycle...

  • Page 23: Biological Monitors

    5 — Techniques of Sterilization To verify the process, insert the biological indicator in a test pack and place pack on the bottom shelf. Run test pack through a typical cycle. On completion, forward test pack and monitor to appropriate personnel for evaluation. Refer to AAMI guidelines to conduct routine biological monitoring.

  • Page 24: Vacuum Leak Test

    5 — Techniques of Sterilization 5.6 Vacuum Leak Test The Vacuum Leak Test (see appropriate cycle description in Section 7.1, Before Operating Sterilizer) measures the integrity of the sealed pressure vessel and associated piping to assure air is not being admitted to the sterilizer during the vacuum drawdowns.
  • Page 25 5 — Techniques of Sterilization WARNING PERSONAL INJURY HAZARD Avoid personal injury from bursting bottles. Liquid sterilization cycle must only be used for liquids in borosilicate (Pyrex) flasks with vented closures. WARNING The liquid cycle is for non-patient contact use only. WARNING BURN HAZARD When sterilizing liquids, you must observe the following procedures:...

  • Page 26: Recommendations For Sterilizing Liquids

    5 — Techniques of Sterilization Table 5-2. Liquid Cycle Processing Guidelines Sterilizer Size Number of Containers for Full Volume of Liquid in One Minimum Recommended Load Container Sterilize Time at 250°F (121°C) in Minutes 26 x 37.5 x 36” 1000 mL (660 x 953 x 914 mm) 26 x 37.5 x 48”...
  • Page 27 5 — Techniques of Sterilization CAUTION POSSIBLE EQUIPMENT DAMAGE Sterilization of chloride-containing solutions (e.g., saline) can cause chamber corrosion and is not recommended by the manufacturer. If, however, chloride-containing solutions must be processed, clean the chamber after each use. IMPORTANT: Read the following paragraphs before sterilizing any liquids in your sterilizer. The liquid cycle is for non-patient contact use only.

  • Page 28: Sterilization Of Implantable Devices

    5 — Techniques of Sterilization Legend 5. Morton Closure 6. Tab 5.10 Sterilization of Implantable Devices A healthcare facility must develop adequate monitoring practices for the sterilization of implantable devices. Refer to AORN recommended practices for more information. Sterilization of implantable devices by a healthcare facility must be monitored: •...

  • Page 29: Component Identification

    6 — Component Identification Component Identification 6.1 Component Identification Figure 6-1. Sterilizer Control Components Legend 1. Sterilizer Control Panel 2. Touch Screen 3. Printer 4. Door Lock Handle 5. Door Pull Handle 129394068_AE Operator Manual AMSCO 400 Series Medium ®...

  • Page 30: General

    6 — Component Identification Legend 6. Hinged-Door Model 7. Lower Access Panel 8. Touch Screen 9. Printer 10. Emergency Stop Switch (Keyed) 11. Horizontal-Sliding Door Model 12. Lower Access Panel 6.2 General Use this manual to become familiar with control locations and functions before operating the sterilizer. The controls for this sterilizer are contained within the control touch screen.

  • Page 31: Main Sterilizer And Cycle Controls

    6 — Component Identification Legend 1. Main Power Disconnect Switch 2. Steam Supply Valve 3. Emergency Manual Exhaust Valve 4. Water Supply Valve NOTE: Valves and disconnect switch behind wall enclosure or enclosed within cabinet, depending upon sterilizer configuration. 6.3 Main Sterilizer and Cycle Controls •...

  • Page 32: Control Displays

    6 — Component Identification Legend 1. Steam Supply Valve (Above Chamber) 2. Closed 3. Open 4. Open 5. Closed 6. Water Supply Valve (Below Chamber) 7. Standby Screen • Sterilizer Control Touch Pad – This is visible on the control touch screen whenever the sterilizer is in Standby mode. NOTE: The touch screen responds to very light pressure.

  • Page 33: Alarm Displays

    6 — Component Identification Figure 6-4. Typical Out-Of-Cycle and In-Cycle Displays Legend 1. Out-of-Cycle 2. In-Cycle 6.5 Alarm Displays Alarm displays tell operators and technicians when the sterilizer is experiencing an abnormal condition. Alarm conditions can be caused by failure of utility supplies or sterilizer components. Section: Troubleshooting details the steps an operator can take to solve most alarm conditions.

  • Page 34: Operating End And Non-Operating End Control Panels

    6 — Component Identification Legend 1. Alarm Notification Screen 2. Alarm Service Information Screen 6.6 Operating End and Non-Operating End Control Panels A sterilizer equipped with two doors will also be equipped with two control panels. The control panel at the loading door of the sterilizer is referred to as the “operating end control”...

  • Page 35: Cycle Selection Touch-Screen Pads

    6 — Component Identification Legend 1. Out-of-Cycle Screen 2. In-Cycle Screen 3. Operating End Control Panel (with Printer) 4. Non-Operating End Control Panel (No Printer, Double Door Units Only) 6.7 Cycle Selection Touch-Screen Pads This section includes the following: Values Touch-Screen Pad Abort Touch-Screen Pad Four cycle selection touch pads are shown on the screen in Figure...
  • Page 36 6 — Component Identification Figure 6-7. Cycle Selection Touch Pads Legend 1. Press one of these buttons to start a cycle. 2. Press this button to access MORE CYCLES. Values Touch-Screen Pad The values touch-screen pads are accessed through the MENU screen by pressing CHANGE CYCLE VALUES (refer to Figure 6-8).
  • Page 37 6 — Component Identification Figure 6-8. Values Touch Screen Pads Legend 1. Press this button to change a cycle name. 2. Press this button to change sterilization exposure temperature (limited range) 3. Press either of these buttons to enter a user defined cycle name. 4.

  • Page 38: Printer

    6 — Component Identification Figure 6-9. Cycle Abort Touch-Screen Pad Legend 1. Press this button to abort a cycle. 6.8 Printer Refer to Figure 6-10 Printer records all cycle data on 2-1/4" (57 mm) wide single-ply paper. See Section 9.9, Check Printer Paper Roll (Impact Printer Only) for paper changing procedure.
  • Page 39 6 — Component Identification • 1. Paper Feed–(appears on typical In-cycle screen) Press to feed out paper from the roll stored inside the control. Accessible during all phases of operation, including alarm conditions. Press and hold for continuous feed. • 2. Status Print–(appears on typical In-cycle screen) Press to obtain a printout of current cycle phase and conditions (when unit is in cycle).

  • Page 40: Printouts

    6 — Component Identification Figure 6-10. Impact Printer Features (Printer Door Open) Figure 6-11. Thermal Printer 6.9 Printouts Refer to Figure 6-12 The printout reports useful information for each cycle the sterilizer runs. The sterilizer control automatically creates a load number that appears on the cycle printout. The load number is a unique identifying code.
  • Page 41 6 — Component Identification Example of a complete load number: “042907” (April 29, 7th cycle). NOTE: The load number cannot be edited by the user. During the cycle, status lines on the printouts show the time the line was printed, chamber temperature and the level of vacuum or pressure in the chamber.

  • Page 42: Horizontal-Sliding Door Operation

    6 — Component Identification Figure 6-12. Typical Printout 6.10 Horizontal-Sliding Door Operation Press door control push button (OPEN DOOR or CLOSE DOOR) to operate the horizontal-sliding door. IMPORTANT: Keep chamber door closed when sterilizer is not in use. 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 43: Hinged-Door Operation

    6 — Component Identification 6.11 Hinged-Door Operation WARNING PERSONAL INJURY HAZARD When closing the chamber door, keep hands and arms out of the door opening and ensure opening is clear of any obstructions. 1. Unlock door by moving door lock control toward the right. 2.

  • Page 44: Emergency Door Opening Procedure

    NOTE: Do not use this procedure when a LIQUID load is inside the sterilizer chamber. The load may boil over due to the fast exhaust process. Contact STERIS for assistance. Procedure: Refer to Section 6.12, Emergency Door Opening...

  • Page 45: Emergency Stop Switch

    6 — Component Identification 6. Open door. • Hinged-door units: Open lower access panel, pull down lock release lever located at lower left corner of door while moving door lock handle to the unlocked position • Sliding-door units: Once door seal has been compressed, push door in normal direction of travel to open. Door slides stiffly, so be prepared to push hard.
  • Page 46 6 — Component Identification Figure 6-16. Emergency Stop Switch, Key and Guard Legend 1. Emergency Stop Label 2. Emergency Stop Button and Key 3. Emergency Stop Guard IMPORTANT: The emergency stop switch is for emergency use only! DO NOT USE AS A START/STOP SWITCH. To properly abort a cycle, press abort button on sterilizer display.

  • Page 47: Emergency Stop Key

    6 — Component Identification Legend 1. Abort Button – Press when necessary to end cycle The emergency stop switch should be pressed only in an emergency situation such as • Safety mechanism fails to stop door when an obstruction is present •...

  • Page 48: Operating Instructions

    7 — Operating Instructions Operating Instructions 7.1 Before Operating Sterilizer WARNING BURN HAZARD Sterilizer, rack/shelves, and loading car will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load. Protective gloves and apron must be worn when reloading sterilizer following the previous operation. WARNING SLIPPING HAZARD To prevent falls keep floors dry by immediately wiping up any spilled liquids or...
  • Page 49 7 — Operating Instructions Press MORE CYCLES to access the Vacuum Leak Test and Dart (Bowie-Dick) cycle selector touch-screen pads. For instructions on running these tests refer to cycle descriptions later in this section. Refer also to Section: Techniques Of Sterilization. 6.

  • Page 50: Preparing Loads For Sterilization Cycles

    7 — Operating Instructions 7.2 Preparing Loads for Sterilization Cycles Before sterilization, all materials must be thoroughly cleaned. The sterilizer chamber holds commonly used wrapped or unwrapped instruments and equipment. 1. Wrappers may be made of 100% cotton, 140 thread count, two-ply fabric, and must be laundered; alternatively, use commercially available, non-woven disposable wrappers.

  • Page 51: Unloading The Sterilizer

    7 — Operating Instructions IMPORTANT: Refer to Section: Techniques of Sterilization for additional information regarding pack preparation, loading and placement. 7.4 Unloading the Sterilizer WARNING BURN HAZARD ● Sterilizer and shelves will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load.

  • Page 52: Loading Car And Transfer Carriage Instructions: Loading

    7 — Operating Instructions 4. Remove packs or instrument trays from the padded surface when they have reached ambient (room) temperature. Depending on the items and environment of the area, this may take a minimum of one hour. IMPORTANT: After removing load(s) from the chamber, close the chamber door and keep the chamber door closed to minimize utility consumption.

  • Page 53: Loading Car Instructions: Unloading

    7 — Operating Instructions Figure 7-2. Align Loading Car with Chamber Opening Legend 1. Transfer Carriage Guide Assembly 2. Sterilizer Floor Dock 7.6 Loading Car Instructions: Unloading WARNING PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD When closing the chamber door, keep hands and arms out of the door opening and make sure opening is clear of obstructions.

  • Page 54: Loading/Unloading Sterilizer: Rack And Shelves

    7 — Operating Instructions WARNING BURN HAZARD ● Sterilizer, rack/shelves and loading car will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load. Protective gloves and apron must be worn when reloading sterilizer following the previous operation. ●...

  • Page 55: Prevacuum Sterilizer Cycles

    7 — Operating Instructions 3. After loading the shelves, slide them to closed position to verify shelf does not interfere with door operation (both doors if double-door sterilizer). 4. Close chamber door(s). 5. Sterilizer is now ready to run a cycle. Refer to appropriate cycle description. 6.
  • Page 56 NOTE: Contact STERIS for information on a wide range of education/training programs designed to meet the educational needs of healthcare industries. Table 7-1. Factory-Set Prevacuum Cycles...

  • Page 57: Prevac Cycles

    7 — Operating Instructions Legend 1. Cycle Selection Screen 2. Press for More Cycles 3. Purge Phase 4. Sterilize Phase 5. Exhaust Phase NOTE: Countdown time on display is estimated; timer self-corrects estimated time at beginning of each phase. 7.9 Prevac Cycles WARNING PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD When closing the chamber door, keep hands and arms out of the door opening and...
  • Page 58 7 — Operating Instructions • For 270°F (132°C) Cycle, press 270 PREVAC button to start the prevacuum cycle. Refer to Section 7.8, Prevacuum Sterilizer Cycles for descriptions of cycle use and loading recommendations. • For 275°F (135°C) Cycle press 275 PREVAC touch-screen pad to start the 275°F (135°C) Prevacuum cycle. Refer to Section 7.8, Prevacuum Sterilizer Cycles for descriptions of cycle use and loading recommendations.
  • Page 59 7 — Operating Instructions Figure 7-5. Typical Prevacuum Cycle Printouts 129394068_AE Operator Manual AMSCO 400 Series Medium ®...

  • Page 60: Gravity Cycles

    7 — Operating Instructions 7.10 Gravity Cycles WARNING PERSONAL INJURY AND/OR EQUIPMENT DAMAGE HAZARD When closing the chamber door, keep hands and arms out of the door opening and make sure opening is clear of obstructions. WARNING BURN HAZARD ● Sterilizer, rack/shelves and loading equipment will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load.
  • Page 61 7 — Operating Instructions NOTE: The control display indicates cycle progress in two ways: a. Large numerals in the screen’s center estimate remaining cycle time, b. A change of phase name in the top status line of the screen. ACTIVATE SEAL – Steam enters the door seal, pressing it against inside surface of the door. PURGE –...
  • Page 62 7 — Operating Instructions Figure 7-6. Typical Gravity Cycle Printout The AMSCO 400 Series Prevacuum Medium Steam Sterilizer is equipped with the following factory programmed gravity sterilization cycles and cycle values. 129394068_AE AMSCO 400 Series Medium Operator Manual ®...
  • Page 63 7 — Operating Instructions Table 7-2. Factory-Set Gravity Cycles and Cycle Values Cycles Sterilize Sterilize Time Dry Time Recommended Validation Temperature Load Standard Gravity Cycle 30 Minutes 15 Minutes Fabric Packs ST-8:2008 250°F (121°C) 25 Minutes 30 Minutes Gravity Cycle 270°F (132°C) Fabric Packs ST-8:2008...

  • Page 64: Liquid Cycle

    7 — Operating Instructions 7.11 Liquid Cycle WARNING EXPLOSION HAZARD This sterilizer is not designed to process flammable compounds. WARNING PERSONAL INJURY HAZARD Avoid personal injury from bursting bottles. Liquid sterilization cycle must only be used for liquids in borosilicate (Pyrex) flasks with vented closures. WARNING It is inappropriate for a healthcare facility to sterilize liquids for direct patient contact.
  • Page 65 7 — Operating Instructions 2. See instructions for using the loading car/transfer carriage or rack and shelves, earlier in this section, for procedures to load the sterilizer. 3. Press LIQUID touch-screen pad to start the Liquid cycle. Refer to Table 7-3 for descriptions of cycle use.
  • Page 66 7 — Operating Instructions Figure 7-8. Typical Liquid Cycle Printout 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 67: Test Cycles

    7 — Operating Instructions Table 7-3. Factory-Set Optional Liquid Cycle and Cycle Values Cycles Sterilize Temperature Sterilize Time Dry Time Validation Standard 45 Minutes ST-8: 2008 LIQUID* 250°F (121°C) Liquids sterilized using the Liquid cycle are not for use with patients. Figure 7-9.
  • Page 68 7 — Operating Instructions Table 7-4. Test Cycles Test Cycles for Sterilize Sterilize Time Dry Time Recommended Validation Temperature Load Standard All Units 3 Minutes 1 Minute Dart (Bowie- 270°F (132°C) Dick) Warm-up* 3 Minutes, 30 1 Minute Dart Testing ST-8: 2008 Dart (Bowie- 270°F (132°C)
  • Page 69 During “warm up,” sterilizer automatically runs a cycle with 3-minute sterilize and 1-minute dry values. c. Once the Warm-up cycle is complete, display returns to Test Cycles screen. 4. Open chamber door (if it is not already open). Load a STERIS Dart® test pack apparatus (or pre-prepared Bowie- Dick test pack) and close door.
  • Page 70 7 — Operating Instructions STERILIZE – Start of sterilize exposure is printed when the chamber reaches set temperature. Chamber temperature is printed every minute. Chamber is controlled at set point plus overdrive. FAST EXHAUST – Start of exhaust is printed and chamber is exhausted to 4 psig (0.28 bar). DRY –...
  • Page 71 7 — Operating Instructions Figure 7-11. Dart (Bowie-Dick) Test Cycle Printout 129394068_AE Operator Manual AMSCO 400 Series Medium ®...
  • Page 72 7 — Operating Instructions Vacuum Leak Test WARNING BURN HAZARD ● Sterilizer, rack/shelves, and loading car will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load. Protective gloves and apron must be worn when reloading sterilizer following the previous operation. ●...
  • Page 73 7 — Operating Instructions LEAK TEST – 10–minute Leak Test period begins after 2-minute stabilization is completed. Printer records calculated leak rate (mm Hg per minute) after 10-minute leak time. AIR BREAK – Chamber is returned to atmospheric pressure, complete tone sounds and cycle summary and end of cycle messages are printed.

  • Page 74: Aborting Cycles

    7 — Operating Instructions 7.13 Aborting Cycles WARNING BURN HAZARD ● Sterilizer, rack/shelves and loading car will be hot after cycle is run. Always wear protective gloves and apron when removing a processed load. Protective gloves and apron must be worn when reloading sterilizer following the previous operation. ●...

  • Page 75: Cycle Graphs

    7 — Operating Instructions 2. Once chamber reaches 4 psig, the sterilizer removes vapor from the chamber for one minute. 3. Once vapor removal is over, status line changes to COMPLETE. When complete the sterilizer chamber can be unloaded following the instructions earlier in this section of the manual. 7.14 Cycle Graphs These cycle graphs provide a visual representation of sterilizer cycles and their phases.
  • Page 76 7 — Operating Instructions NOTE: * 270°F (132°C) prevac cycle runs four conditioning vacuum pulses. 275°F (135°C) prevac runs three conditioning vacuum pulses. Figure 7-14. Cycle Graph – Gravity Cycle 129394068_AE AMSCO 400 Series Medium Operator Manual ®...
  • Page 77 7 — Operating Instructions Figure 7-15. Cycle Graph – Leak Test 129394068_AE Operator Manual AMSCO 400 Series Medium ®...
  • Page 78 7 — Operating Instructions Figure 7-16. Cycle Graph – Liquid Cycle 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 79: Cycle And Control Value Programming

    8 — Cycle and Control Value Programming Cycle and Control Value Programming 8.1 Introduction The sterilizers are shipped with factory-set cycles, cycle values and control values programmed into the control (refer Table -1). These are the cycles and values to which the control will default should a memory failure ever occur. These preset values can be changed to tailor the sterilizer to the operating environment in which it has been placed.

  • Page 80: Change Cycle Values

    8 — Cycle and Control Value Programming 8.3 Change Cycle Values This section contains the following: Overview Adjusting Cycle Sterilize Time and Dry Time Step-by-Step Flowchart Overview Refer to Figure 8-1 through Figure 8-3. 1. Press the ON touch screen pad, if sterilizer is in STANDBY. Control advances to Status screen #1. 2.
  • Page 81 8 — Cycle and Control Value Programming Cycle values (sterilize temperature and time, and dry time are adjustable within the limits shown in Table 8-1. • TEMP: For changing sterilize exposure temperature within the ranges shown. • STER: For changing the sterilization exposure time. Use number touchpads to enter a new value. Left and right arrow touchpads can be used to cursor through an existing value.
  • Page 82 8 — Cycle and Control Value Programming Table 8-1. Adjustment Ranges for Cycle Values (continued) Cycle Type Sterilize Time* Sterilize Temperature Dry Time 30 - 99 minutes 0 - 99 minutes 250°F (121°C) Gravity 250 or 269°F (121 - 131° 270°F (132°C) Gravity 15 - 99 minutes 270°F (132°C)
  • Page 83 8 — Cycle and Control Value Programming Step-by-Step Flowchart Figure 8-1. Change Cycle Values, Part 1 of 3 IMPORTANT: Applicable cycles have been validated to satisfy the requirements outlined in Table -1. If cycle parameters (sterilize time, dry time, temperature) other than those listed are required, it is the responsibility of the healthcare facility to consult and follow the device manufacturer’s written instructions.
  • Page 84 8 — Cycle and Control Value Programming Figure 8-2. Change Cycle Values, Part 2 of 3 Comments: 129394068_AE AMSCO 400 Series Medium Operator Manual ®...
  • Page 85 8 — Cycle and Control Value Programming IMPORTANT: Pressing EXIT causes the sterilizer to leave Change Values, saving any changes made to the point where EXIT was pressed. A printout of cycle values and the cycle count is provided by pressing PRINT VALUES. Any changed cycle values and the cycle count are automatically printed after returning to screen #10 from screen #11.
  • Page 86 8 — Cycle and Control Value Programming • Press NAME touchpad to change cycle type • Press TEMP touchpad change sterilization exposure temperature. • Press STER touchpad to change Sterilization Exposure Time • Press DRY touchpad to change Drying Time TEMP, STER or DRY values can be entered or changed using the numeric touchpads.

  • Page 87: Entering Custom Cycle Names

    8 — Cycle and Control Value Programming 8.4 Entering Custom Cycle Names Figure 8-4. Enter or Change Custom Cycle Names EXAMPLE: CUSTOM NAMES are used to add descriptive text to the cycle selection buttons. • CLEAR button erases all text entered. 129394068_AE Operator Manual AMSCO...

  • Page 88: Change Time And Date

    8 — Cycle and Control Value Programming • <- and -> buttons move the cursor position left or right. 8.5 Change Time and Date Set time and date the sterilizer uses for all display and printout messages. Refer to Section 8.8, Lockout for instructions on locking the time and date change feature.
  • Page 89 8 — Cycle and Control Value Programming c. Once the correct date has been entered, press EXIT to return to screen #1. d. If necessary, press CHANGE TIME & DATE touchpad to return to screen #32 and adjust the date. •...

  • Page 90: Change Machine Setup

    8 — Cycle and Control Value Programming c. Once the correct time has been entered, press EXIT to save setting, return to Menu screen to start clock. NOTE: The day of the week is automatically understood and registered by the control. 8.6 Change Machine Setup All changes are made to displayed settings using touch screens.

  • Page 91: Access Code

    8 — Cycle and Control Value Programming Table 8-2. Change Machine Setup (continued) MACHINE SETUP Print Format This setting allows the sterilizer to print a condensed version of the cycle printout to conserve on paper usage. Audible This option allows adjustment of ALARM, END OF CYCLE and TOUCHPAD signals tones. Tones can Signals be independently adjusted to one of three volume levels.
  • Page 92 8 — Cycle and Control Value Programming 2. The display changes to the Change Machine Setup screen (#20). Press the touchpad labeled ACCESS CODE. The screen changes to the Access Code screen (#21). 3. If the Access Code option is already turned on, the highlighted touchpad is CODE REQUIRED. If the Access Code is not on, highlighted touchpad is CODE NOT REQUIRED.
  • Page 93 8 — Cycle and Control Value Programming b. Once entered, screen prompts for Access Code to be re-entered for verification. If codes do not match, the control returns to screen #21. c. If codes match, control returns to Change Machine Setup screen (#20). •...

  • Page 94: Lockout

    8 — Cycle and Control Value Programming 2. If the code is not known, press CANCEL to return to the previous screen. 8.8 Lockout This function is used to protect selected setup options from changes by unauthorized personnel. Any functions selected for lockout cannot be accessed without first entering the correct Access Code.
  • Page 95 8 — Cycle and Control Value Programming a. Enter the code and press ENTER. The display advances to the Select Items to Lockout screen (#23). b. If the code is not known, lockouts cannot be performed, press CANCEL and display changes to screen #20. c.

  • Page 96: Utilities Control

    8 — Cycle and Control Value Programming 5. When all setup options to be locked out have been selected, press EXIT to return to the main setup menu. 8.9 Utilities Control This screen is used to automatically control utility services to the sterilizer. This utility is factory-set to Manual Utilities control (i.e., utilities must be shut off and turned on by an operator).
  • Page 97 8 — Cycle and Control Value Programming 2. Display changes to Menu screen. Press CHANGE MACHINE SETUP touchpad. Display changes to Setup screen. Press UTILITIES CONTROL touchpad. Screen changes to Utilities Control screen (#39). • MANUAL UTILITIES CONTROL. This is the default condition for the sterilizer. Press this touchpad to cancel all automatic utilities controls.
  • Page 98 8 — Cycle and Control Value Programming b. Display changes to screen #33. At this screen, start up times and shut off times are entered using touchscreen key pad. Time is entered as a four-digit number (e.g.,0 6 0 0 for 6:00). NOTE: If 24-hr time is selected, AM and PM touchpads are not displayed and screen #33 is replaced by screen #44.

  • Page 99: Machine Number

    8 — Cycle and Control Value Programming NOTE: Some sterilizers are operated exclusively on the night shift. In such cases, it may be useful to set shutdown and restart times so the sterilizer operates during the evening hours and is shut down during the day.

  • Page 100: Time Format

    8 — Cycle and Control Value Programming 3. At screen #41, enter the two-character code for the sterilizer. Any letter, number, or combination can be used as the machine number. Ensure however, that each machine number used is different from any others that have been used in the facility.

  • Page 101: Print Format

    8 — Cycle and Control Value Programming • 24 HOUR–This is a 24 hour format associated with military timekeeping. 4. Once the appropriate format has been selected, or if format does not need to be changed, press EXIT to return to the Change Machine Setup screen (#20).

  • Page 102: Language

    8 — Cycle and Control Value Programming Figure 8-5. Sample Full and Condensed Printouts 8.13 Language The AMSCO 400 Series sterilizer is capable of operation with display screens and printouts in two of three languages. The factory default is ENGLISH. A BILINGUAL option can be used to easily change languages between shifts or whenever necessary.

  • Page 103: Audible Signals

    8 — Cycle and Control Value Programming 4. The BILINGUAL option can be selected to allow operators to toggle between English and the other language available without entering Change Machine Setup. The other language touchpad appears on the main menu. In this way, another language can be selected during operation without going to the CHANGE MACHINE SETUP menu.

  • Page 104: Units

    8 — Cycle and Control Value Programming • ALARM – This is a two-tone signal heard during abnormal conditions. a. Each audible signal can be adjusted for volume. i. First press the touchpad for the selected type of signal (e.g., ALARM, END OF CYCLE or TOUCHPAD). ii.

  • Page 105: Duplicate Print

    8 — Cycle and Control Value Programming • Y-M-D – Year-Month-Day • MON-D-Y – Month-Day-Year • D-MON-Y – Day-Month-Year • Y-MON-D – Year-Month-Day When selecting the format touchpads in the bottom row, MON = 3 letter abbreviation of the month. 4.

  • Page 106: Leaving Change Values

    8 — Cycle and Control Value Programming c. At screen #27, select the appropriate print option by pressing one of the touchpads on the display. • DUPLICATE PRINT – The sterilizer provides a second printout of the last previous cycle after the cycle completes.

  • Page 107: Routine Maintenance

    ● The performance of the sterilizer is validated as a system including components defined by STERIS in the Operator Manual and Service Manual for the sterilizer. Substitution of unauthorized components can potentially lead to personal injury, damage or premature failure of the product and result in a unit configuration that is inconsistent with the validated product.

  • Page 108: Preventive Maintenance

    The following preventive maintenance advisories must be observed: 1. Regular service and maintenance MUST be performed only by STERIS or a STERIS-trained technician. Any work performed by inexperienced or unqualified persons or the installation of unauthorized parts could cause personal injury, invalidate the warranty or result in costly damage.
  • Page 109 9 — Routine Maintenance Drain Strainer Cleaning Frequency The chamber drain strainer should be cleaned at least once a day, preferably in the morning before running the first cycle and whenever the strainer is clogged with debris. Figure 9-1. AMSCO 400 Med Sterilizer Drain and Strainer Figure 9-2.

  • Page 110: Drain Routine Cleaning Procedure

    • Drain should be cleaned whenever it becomes clogged. Drain Cleaning Procedure 1. Make sure to follow facility policy and STERIS Operator Manual procedures to turn off sterilizer power and to not turn on the unit while the equipment is being cleaned.

  • Page 111: Chamber Routine Cleaning Procedure

    NOTE: Routine Chamber Cleaning conducted by equipment operators does not replace the STERIS-recommended annual professional cleaning. Chamber Cleaning Procedure 1. Make sure to follow facility policy and STERIS Operator Manual procedures to turn off sterilizer power and to not turn on the unit while the equipment is being cleaned. 129394068_AE...
  • Page 112 9 — Routine Maintenance Figure 9-3. Power Down Unit 2. Open the sterilizer door and allow the sterilizer to cool (approximately 4-5 hours). 3. Remove the chamber rack and shelves according to instructions found in the operator manual if applicable. 4.
  • Page 113 If water does not drain after first attempt, take the following action: ● Turn off the unit and its power supply. ● Contact STERIS Service to allow a STERIS Technician to assess the issue. ● Do not reattempt to initiate a cycle and abort a second time.

  • Page 114: Loading Equipment Cleaning Procedure

    9 — Routine Maintenance 20. Rinse the pump-up sprayer thoroughly. 21. Empty the water from the pump-up sprayer used for rinsing and store containers in a manner that promotes drying until needed for further use. 9.6 Loading Equipment Cleaning Procedure 1.
  • Page 115 9 — Routine Maintenance Figure 9-6. Thermal Printer Legend 1. Paper Feed Button 2. Paper Cut Button Change Printer Paper Roll This sterilizer includes a thermal printer. Load or replace printer paper roll as follows: NOTE: If the paper runs out during a cycle, the last 300 cycles can be reprinted. 1.
  • Page 116 9 — Routine Maintenance Legend 1. Feed Button 2. Open Printer 2. Lift inside cover using blue tab. Legend 1. Use blue tab to lift inside cover. 3. Remove old paper spool. Legend 1. Remove old printer paper spool. 4. Add new paper roll as follows : a.
  • Page 117 9 — Routine Maintenance b. Ensure at least 8" (203 mm) of paper extends from printer compartment. c. Close inside cover. Legend 1. Insert new paper roll. 2. Close inside cover. 5. Remove take-up spool from printer and pull apart. Legend 1.
  • Page 118 9 — Routine Maintenance Legend 1. Feed Button 2. Push spool together. 7. Place spool back in original position, at top of printer compartment, with green spool gear firmly seated against paper take-up motor gear. 8. Press Feed Button until paper is tight. 9.

  • Page 119: Check Printer Paper Roll (Impact Printer Only)

    9 — Routine Maintenance 9.9 Check Printer Paper Roll (Impact Printer Only) Recommended Frequency: Inspect printer paper roll every day. The printer paper roll should be changed whenever colored stripe is visible on one or both edges of printout paper. If the paper roll must be changed, follow the steps below: 1.
  • Page 120 9 — Routine Maintenance Figure 9-7. Open Printer Door 129394068_AE AMSCO 400 Series Medium Operator Manual ®...
  • Page 121 9 — Routine Maintenance Figure 9-8. Printer Components (Printer Door Open) 2. Tear paper between take-up spool and printer. Refer to Figure 9-9. 129394068_AE Operator Manual AMSCO 400 Series Medium ®...
  • Page 122 9 — Routine Maintenance Figure 9-9. Tear Printer Paper 3. Remove take-up spool from drive by inserting fingers in cavity and lifting slightly to pull spool out. 4. Remove used paper from spindle. 5. Open inner printer door and remove old paper roll, gently pulling any remaining tape out of printer roller mechanism.
  • Page 123 9 — Routine Maintenance Figure 9-11. Insert Paper Behind Printer Ink Cartridge 8. Press paper feed button on printer until paper advances through printer mechanism and ink cartridge, exiting through front. Figure 9-12. Press Paper Feed Button to Advance Paper 9.

  • Page 124: Check Printer Ink Cartridge (Impact Printer Only)

    9 — Routine Maintenance Figure 9-13. Coil Paper onto Take-Up Spool 11. Reinstall take-up spool in bracket. Manually roll up slack paper. Figure 9-14. Reinstall Take-Up Spool 12. Close printer door. 9.10 Check Printer Ink Cartridge (Impact Printer Only) Recommended Frequency: Check printout each day looking for any fading in print density. The printer ink cartridge should be changed as soon as type on printouts is light or faded, and before printouts become difficult to read.
  • Page 125 9 — Routine Maintenance Figure 9-15. Remove Ink Cartridge From Printer 3. Slip cartridge off end of paper, slip new cartridge over paper in the same way as before, making sure paper slides between ink cartridge and ink ribbon. Figure 9-16. Slip Cartridge Onto Printer Paper 4.

  • Page 126: Waste Products Disposal

    Contact your sales representative for recommendations on cleaning products, biological indicators, or parts that are not listed in Table 9-1 Table 9-2. NOTE: Use only STERIS authorized parts on this equipment. Use of unauthorized parts will void the warranty. Table 9-1. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer Schematic Description...
  • Page 127 9 — Routine Maintenance Table 9-1. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer (continued) Schematic Description Part Number Designation 129373-376 SEAL, Door (NOE) 101006-172 FILTER, Chamber Air 129373-528 DIFFUSER, Steam 764328-968 CONTROL, Water Flow, Vacuum Pump 083630-001 VALVE, Needle, 1/8" PTF 129376-082 ORIFICE, Door Seal Exhaust (OE) 129376-082...
  • Page 128 9 — Routine Maintenance Table 9-1. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer (continued) Schematic Description Part Number Designation 764323-741 • COIL SOLENOID VALVE, Steam to Chamber 093911-331 S2 (NC) 764317-688 • KIT, Repair 764323-941 • COIL 093911-327 S3 (NC) SOLENOID VALVE, Fast Exhaust •...
  • Page 129 9 — Routine Maintenance Table 9-1. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer (continued) Schematic Description Part Number Designation 093910-479 S38 (NC) SOLENOID VALVE, Seal Retraction (NOE) 764076-001 • KIT, Repair 764323-942 • COIL 093910-478 S40 (NC) SOLENOID VALVE, Chamber Constant Bleed •...
  • Page 130 9 — Routine Maintenance Table 9-1. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer (continued) Schematic Description Part Number Designation NOE = Non-operating End RTD = Resistive Thermal Detector Table 9-2. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer Description Part Number CONTROL DISPLAY, O.
  • Page 131 9 — Routine Maintenance Table 9-2. Replacement Parts AMSCO 400 Series Medium Steam Sterilizer (continued) Description Part Number 764317-463 • FUSE, 5A (Box of 5) 764332-144 CONTACTOR CURRENT BREAKER, Motor Starter 764332-258 DOOR DRIVE (Sliding Door Units Only) 146660-338 • MOTOR •...

  • Page 132: Troubleshooting

    This section pictorially lists and describes all the possible alarm conditions which may occur when operating this unit. If a problem occurs that is not described in this section, please call STERIS. A trained service technician will promptly place the sterilizer in proper working condition.

  • Page 133: Adc Failure (Analog To Digital Converter)/Adc Failure

    Additional Information Ambient temperature exceeds 90°F (32°C). 1. Silence alarm. 2. Utility room temperature must be 90°F or below. Contact Facilities for verification and to repair HVAC if necessary. 3. Contact STERIS. 129394068_AE Operator Manual AMSCO 400 Series Medium ®...

  • Page 134: Atmospheric Pressure Alarm

    2. Fully open and close the door once. 3. Attempt to start a cycle. 4. If alarm recurs, contact STERIS. 10.4 Board Over Temp Failure Condition Occurs if temperature of main control circuit board exceeds acceptable environmental conditions.

  • Page 135: Chamber Pressure/Temperature Failure - Failure Reading Temp/Prs

    1. Cycle power (switch on control box). 2. Remove load and clean chamber drain strainer. Run test cycle. 3. If alarm recurs, contact STERIS. 10.7 Chamber Temperature Probe Failure/Failure Reading Chamber T Condition Occurs if temperature reading is outside the normal range of 32 - 310°F (0 - 154°C) for five seconds.

  • Page 136: Cycle Starts Unexpectedly

    1. Allow chamber to cool. 2. Remove load. 3. Clean chamber drain strainer. 4. Run test cycle. 5. If alarm recurs, contact STERIS. Indicator faulty. 1. Check DART indicator date codes for expired indicators. 2. Verify indicator by running one from same lot in alternate sterilizer.

  • Page 137: Door A (B) Lock Switch Malfunction

    Additional Information Door pressure lock malfunction. 1. Silence alarm. 2. Contact STERIS. 10.13 Door A (B) Seal Switch Malfunction Condition Occurs if seal switch (PS1) closes out of cycle or switched neutral relay (NS2) associated with door seal A closed switch fails.

  • Page 138: Door Unsealed (Oe Door) Or Door Unsealed B (Noe Door)

    Review cycle tapes and service alarm log for alarm frequency and cycle relevance. General Troubleshooting Additional Information Chamber strainer clogged. 1. After allowing chamber to completely cool, remove load, clean chamber drain strainer. Run test cycle. 2. If alarm recurs, contact STERIS. 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 139: Jacket Temperature Probe Failure

    General Troubleshooting Additional Information Enclosure has high leakage. 1. Run a Dart Warm Up cycle. 2. Run a leak test. If leak test fails, contact STERIS. Chamber drain strainer clogged. 1. Allow chamber to cool. 2. Remove load. 3. Clean chamber drain strainer.

  • Page 140: Over Sterilize Temperature * Over Temp

    1. Open then close the door and lock it. Open the door to attempt to reset the atmospheric pressure. Rerun a cycle. 2. If alarm recurs, contact STERIS. 10.24 Real Time Clock (RTC) Failure/RTC Failure Condition Occurs if Real Time Clock (RTC) on main control circuit board fails. RTC must continually test against board CPU clock every five minutes for ±3 seconds.

  • Page 141: Read Only Memory (Rom) Failure/Rom Failure

    Occurs if the Read Only Memory (ROM) on the main control circuit board fails. General Troubleshooting Additional Information Silence alarm. 1. Contact STERIS. 10.26 Recorder Deviation/Recorder Deviation XXX.X, Chamber = XXX.X F, Recorder = XXX.X F, Jacket = XXX.X F Condition Occurs if the two temperature sensing elements in chamber drain probe read more than 1°F (0.5°...

  • Page 142: Relay #2 Failure

    Occurs if the switched neutral relay associated with Door A Closed switch fails. These provide permissives that allow S35 to open safely. General Troubleshooting Additional Information Silence alarm. 1. Contact STERIS. E-stop pressed. 1. Release E-stop to reset alarm. 2. Return to normal service. 10.30 Relay #3 Failure Condition Occurs if the switched neutral relay associated with Door B switch fails.

  • Page 143: Too Long In Charge

    Review cycle tapes and service alarm log for alarm frequency and cycle relevance. General Troubleshooting Additional Information Silence alarm. 1. If alarm recurs, call STERIS. 10.33 Too Long in Exhaust Condition Occurs if chamber does not exhaust to 4 psig within allotted time.

  • Page 144: Too Long To Close Door

    Additional Information Silence alarm. 1. Check door for obstruction and remove if necessary. 2. If alarm recurs, Contact STERIS. 10.36 Too Long in Evacuation Condition Occurs if chamber does not reach minimum vacuum levels for leak test and regular cycles in time allowed. Vacuum pulls for one minute after chamber reaches 4 psig, then pulls to 10 inHG.

  • Page 145: Too Long To Seal Door

    1. If house steam, contact facilities and verify steam pressure is between 50 and 80 PSIG and correct as necessary. 2. Contact STERIS. 10.39 Too Long to Unseal Door Condition Occurs if door seal pressure does not drop below 5 psig within allotted time.

  • Page 146: Waste Temperature Probe Failure/Failure Reading Waste T

    Review cycle tapes and service alarm log for alarm frequency and cycle relevance. General Troubleshooting Additional Information Chamber strainer clogged. 1. After allowing chamber to completely cool, remove load, clean chamber drain strainer. Run test cycle. 2. If alarm recurs, contact STERIS. 129394068_AE AMSCO 400 Series Medium Operator Manual ®...

  • Page 147: Wet Packs

    4. Complete the Steam Sterilizer Performance Checklist. 5. Advise operator to begin a Wet Pack Log. 6. Request a STERIS Clinical Education Specialist to assist the operator in completing Load Content and Configuration Assessment Checklist and Clinical Practices Assessment Checklist.

This manual is also suitable for:

Amsco 400 medium 36 slAmsco 400 medium 48 hAmsco 400 medium 48 slAmsco 400 medium 60 hAmsco 400 medium 60 sl

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