AMSCO Century V120 and V116 Small Sterilizers

Description

AMSCO Century V120 and V116 Small Sterilizers Features

Healthcare facilities use the AMSCO Century V120 and V116 Small Sterilizers for sterilization of materials.
They are available in two configurations:

1. Gravity

• Designed for sterilization of heat- and moisture-stable materials and sterilization of items intended for immediate use.
• Gravity sterilizers are equipped with gravity and flash cycles.

2. Prevacuum

• Designed for fast, efficient sterilization of heat- and moisture-stable materials in addition to the same sterilization capabilities as a gravity sterilizer.
• Prevacuum sterilizers are equipped with pre­vacuum, gravity, flash, express, leak test, and daily air removal test cycles.

Operating Parameters

• Nameable cycles
• Security access codes for up to six operators
• Selectable volume for audible alarms
• Sterilizing time and temperature
• Temperature units in °C or °F

Control System

• Touch-sensitive screen with easy to read character display area.
• Ink on paper impact printer.
• Help screens for programming and troubleshooting alarm conditions.
• Communication interface compatible with most PC peripheral devices.
• Automatic check of control program and cycle data maintains process integrity.
• Service reprogrammable flash ROM memory.

Vertical Sliding Door

• Hands free loading and unloading.
• Foot Pedal activated door opening and closing.
• Non lubricated, steam-activated door seal

Hinged Front Maintenance Cabinet Panel

• Fully opens for convenient maintenance access to sterilizer piping and control board housing.

Modular Vessel and Piping

• Increased dependability and reduced service times.
• Reduced piping components for increased reliability.
• Emergency manual exhaust valve.
• Electronic water conservation valve.

Resistance Temperature Detectors (RTD)

• RTD are installed for sterilizer temperature control. The chamber drain line RTD senses and controls temperature variations within the sterilizer chamber.
• A jacket RTD provides temperature control within the jacket space.
• These RTD signals converted into electrical impulses, provide accurate control inputs and readouts throughout the entire cycle.

Electronic Water Saving Control

• Includes a condenser RTD to control the amount of water used in condens­ing the exhausted chamber steam.

Software Calibration

• Performed in the Service Mode, accessible through the touch screen displays, and accomplished using external or internal temperature and pressure sources.
• Control system provides a printed record of all calibration data for verification to current readings.

Automatic Utilities Startup/Shutdown

• Permits slow cooling of the entire vessel and load.
• Shutdown may be programmed to activate at the end of any designated cycle or time of day.
• When activated, the control system automatically shuts off all utility valves, conserving steam and water usage.
• Sterilizer utilities can be restarted either by programmed time or manual operation.
• A different shutdown and restart time can be programmed for each day.

Steam Purge

• Provided to assist in air removal and preheat the load.

One-Piece Insulation Sleeve

• Fitted around the exterior of the sterilizer vessel.
• The sleeve is sealed and held in place by hook-and-loop closures.
• Insulation is asbestos-free and chloride-free, silicone impregnated oil-and water­ resistant fiberglass.

Lighted DIN Connectors

• Installed on all steam, water, and exhaust valves for reliability and ease of maintenance.

AMSCO Century V120 and V116 Small Sterilizers Specifications

AMSCO Century V120 and V116 Small Sterilizers Table of Contents

• Interior Chamber Dimensions
• PROCESSING CYCLES
• CONTROL SYSTEM
• SAFETY FEATURES
• CONSTRUCTION
• MOUNTING ARRANGEMENT
• ACCESSORY
• UTILITY REQUIREMENTS
• NOTES
• STANDARDS

AMSCO Century V120 and V116 Small Sterilizers Interior Chamber Dimensions

• V116
  • 16 x 16 x 26″ (406 x 406 x 660 mm)
• V120
  • 20 x 20 x 38″ (508 x 508 x 965 mm)

AMSCO Century V120 and V116 Small Sterilizers PROCESSING CYCLES

Flash Cycle (3-minute exposure):

• This cycle is for sterilizing an unwrapped item intended for immediate use (e.g., a dropped instrument).
• The recommended load is one unwrapped instrument tray containing a single instrument.
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 3 Minutes
• Dry Time:
  • 1 Minute
• This cycle is validated to AAMI standard ST-8.

Flash Cycle (10-minute exposure):

• This cycle is for sterilizing items intended for immediate use (e.g., dropped instruments).
• The recom­mended load is one unwrapped instrument tray containing one or more nonporous instruments, with a maximum weight of 17 lbs (7.7 kg).
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 10 Minutes
• Dry Time:
  • 1 Minute
• This cycle is validated to AAMI standard ST-8.

Express Cycle (Prevacuum Sterilizers, Only):

• This cycle is for sterilizing a single instrument in a single-wrapped tray (e.g., a dropped instrument).
• The recommended load is one single-wrapped instrument tray containing a single instrument (nonporous items only).
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 4 Minutes
• Dry Time:
  • 3 minutes
• This cycle is validated to AAMI standard ST-8.

270°F Prevac Cycle (Prevacuum Sterilizers, Only):

• This cycle is for sterilizing double-wrapped instru­ment trays.
• The recommended load is up to two double-wrapped instrument trays, with a maximum combined weight of 17 lbs (7.7 kg) per tray, or up to six fabric packs.
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 4 Minutes
• Dry Time:
  • 20 Minutes
• This cycle is validated to AAMI standard ST-8.

275°F Prevac Cycle (Prevacuum Sterilizers, Only):

• This cycle is for sterilizing double-wrapped instru­ment trays.
• The recommended load is up to two double-wrapped instrument trays, with a maximum combined weight of 17 lbs (7.7 kg) per tray.
• Sterilize Exposure Tempera­ture:
  • 275°F (135°C)
• Sterilize Expo­sure Time:
  • 3 Minutes
• Dry Time:
  • 16 Minutes
• This cycle is validated to AAMI standard ST-8.

270°F Gravity Cycle:

• This cycle is for sterilizing double-wrapped instrument trays.
• The recommended load is up to two double-wrapped instrument trays, with a maximum weight of 17 lbs (7. 7 kg) per tray.
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 15 minutes
• Dry Time
  • 30 minutes
• This cycle is validated to AAMI standard ST-8.

250°F Gravity Cycle:

• This cycle is for sterilizing fabric packs.
• The recommended load is up to six fabric packs.
• Sterilize Exposure Tempera­ture:
  • 250°F (121°C)
• Sterilize Expo­sure Time:
  • 30 minutes
• Dry Time:
  • 15 minutes
• This cycle is validated to AAMI standard ST-8.

NOTE: A 270°F Gravity Cycle, adjusted for 25-minute sterilize exposure time, can be used for processing fabric packs.

PREVACUUM TESTING CYCLES

Vacuum Leak Test Cycle:

• This cycle is used for testing the vacuum integrity of the sterilizer’s piping.
• Sterilizer chamber must be empty while running this test cycle.
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• All timing is preprogrammed and cannot be adjusted.
• This cycle is validated to AAMI standard ST-8.

DART (Bowie-Dick) Test Cycle:

• This cycle is used to conduct a Bowie-Dick test on the sterilizer.
• The recommended load is a STERIS Dart® pack, or a properly prepared Bowie-Dick test pack.
• Sterilize Exposure Temperature:
  • 270°F (132°C)
• Sterilize Exposure Time:
  • 3-1/2 Minutes
• Dry Time:
  • 1 Minute
• This cycle is validated to AAMI standard ST-8.

OPTIONAL CYCLE

Optional Liquid Cycle:

• This cycle is used for sterilizing liquids in borosili­cate containers with vented closures.
• The recommended load is up to three 1,000-ml containers at 45-minute exposure time.
• Sterilize exposure temperature:
  • 250°F (121°C)
• Factory Programmed Sterilize Exposure Time is 45 Minutes
• Dry time is not applicable.
• This cycle is validated to AAMI standard ST-8.

IMPORTANT: Sterilization of liquids for direct patient contact is not recom­mended.

AMSCO Century V120 and V116 Small Sterilizers CONTROL SYSTEM

Design Features

• The Century control system monitors and controls all sterilizer operations and functions.
• The control system is factory-programmed with standard sterilizing cycles.
• Each cycle is adjustable to meet specific processing requirements.
• All control configuring is performed through the touch screen displays.

IMPORTANT: If factory-programmed cycle values are changed, it is necessary for the operator to verify the efficacy of the changed cycle.

• Cycle values and operating features may be adjusted and verified prior to cycle operation.
• Once the cycle is started, cycles and cycle values cannot be changed until the cycle is complete.
• On completion of a cycle, timers reset to the previously selected values, eliminating the need to reset values between repeated cycles.
• If chamber tempera­ture drops below-set point during the exposure phase, the timer is set to stop and automatically reset once normal operating temperature is reached.
• Critical control system components are housed within a sealed compartment to protect the components from moisture and heat generated during the steril­ization process.
• A cooling fan with filter is installed in the housing compartment to maintain positive pressure within the compartment, keeping components cool and dust-free.

Operator Interface Control Panel

• Consisting of a touch screen and impact printer is located on the operating (load or nonsterile) end of the sterilizer.
• If sterilizer is equipped with double doors, an additional touch screen is provided on the sterilizer’s non-operating (unload or sterile) end.

Touch-Sensitive Screen

• Features a 30-line x 40-character graphics display.
• The control’s touch screen color display features a wide viewing angle and high-visibility backlighting.
• All sterilizer functions, including cycle initiation and cycle configura­tion, are operated by pressing the touch-sensitive areas on the display, referred to as buttons.
• The display indicates appropriate control buttons, operator prompts, and status messages necessary to assist in sterilizer operation.
• All displayed messages are complete phrases with no codes to be cross-referenced.
• The display also indicates any abnormal conditions that may exist either in or out of a cycle.

Ink-On-Paper Impact Printer

• Located above the touch screen, provides an easy-to-read printed record of all pertinent cycle data on 2-1/4″ wide paper.
• Data is automatically printed at the beginning and end of each cycle and at transition points during the cycle.
• Printer take-up spool stores an entire roll of paper, providing cycle records which can be saved for future reference.
• Three paper tape rolls are furnished with each unit.

Non-Operating End (NOE) Control Panel

• Equipped on double-door sterilizers only, includes a touch­sensitive screen similar to the operat­ing end screen.
• Preprogrammed cycles can be started from the NOE control panel.
• Display concurrently shows the same information as the operating end screen display.
• Cycle configuration is performed by accessing the Change Values menu through the operating end touch screen.

In addition to the adjustment of Cycle Values, the following operating parameters can also be changed through the Change Values menu:

Time Display and Printout Units

• Standard AM/PM or 24-hour military (MIL).

Access Code

• Requires entry of a four-digit access code to operate the sterilizer and/or change the cycle values.
• Operating the sterilizer or accessing Change Values menu causes the display to request the entry of an access code.
• If an access code is not properly entered, the display returns to the standby or main menu screen, denying user access to the sterilizer or programming.

Audible Signals

• Adjustable
• Touchpad and end-of-cycle signals can be adjusted to one of four sound levels (off, low, medium, or high) as required for the operating environment.
• The alarm signal can be adjusted to low, medium, or high (it cannot be turned off).
• Print Format
• Allows selection of either a full or condensed printout of the cycle information during processing.

Temperature Display and Printout Units

• Fahrenheit (°F) or Celsius (°C).
• Temperature is set, displayed, controlled, and printed to the nearest 1 °.
• Recalibration is not required when changing temperature units from °F to °C and vice versa.

Pressure Vacuum Display and Printout Units

• psig/ln Hg or bar.
• Recalibration is not required when changing pressure units.

Technical Data

• Control system consists of microcom­puter control boards and peripheral function circuit boards, located within the control board housing behind the front cabinet service panel above the chamber.
• An internal battery backs up all cycle memory for up to 10 years.
• If a power failure occurs during a cycle, the battery backup system ensures that cycle memory will be retained and proper cycle completion will occur once power is restored.
• When power is lost, the cycle is held in phase until power is restored, exceeding the minimum government specification of one minute.
• Once power returns, the event is recorded on the printout and the cycle automatically resumes or restarts, depending on what phase the cycle was in at the time of
  power loss.
• If necessary, the operator can manu­ally abort the cycle.

AMSCO Century V120 and V116 Small Sterilizers SAFETY FEATURES

Control Lockout Switch

• Equipped on the chamber door, senses when the door seal is energized and tight against the door.
• Control prevents the cycle from starting until the limit switch signal is received.
• If control loses appropriate signal during a cycle, the alarm activates, cycle aborts and chamber safely vents with a controlled exhaust.

Chamber Float Switch

• Activates the alarm, aborts cycle, and safely vents chamber with a controlled exhaust if excessive condensate is detected in the vessel chamber.

Pressure Relief Valve

• Limits the amount of pressure buildup so that the rated pressure in the vessel is not exceeded.

CONSTRUCTION

Shell Assembly

• Two fabricated Type 316L stainless­steel shells welded one within the other, form the sterilizer vessel.
• Type 316L stainless-steel end frame(s) is welded to door end.
• On single door units, back of the chamber is fitted with welded, 316L stainless-steel formed the head.
• Sterilizer vessel is ASME rated at 50 psig (3.45 bar) and insulated.
• Vessel (20 x 20″ [508 x 508 mm] units only) includes one 1.0″-NPT welded chamber bushing for customer use.
• Steam-supply opening inside the chamber is shielded by a Type 316L stainless-steel baffle.

Chamber Door(s)

• The door is constructed of a single formed piece of Type 316L stainless steel.
• The door is insulated to reduce the surface temperature of the stainless-steel door cover.
• During cycle operation, the door is sealed by a steam-activated door seal.
• The door seal is constructed of a special long­life rubber compound.
• When the sterilizer cycle is complete, the seal retracts under vacuum into a machined groove in the sterilizer’s end frame.
• Door seal can be manually retracted to open the door and remove critical load in an emergency situation if a loss of vacuum or loss of power occurs.
• The door is suspended by cables attached to a counterweight.
• Chamber door is opened (lowered) and closed (raised) by pressing a foot pedal located on the same end as the door being operated.
• In case of a power or mechanical failure, the door can be operated manually.
• A long-life proximity switch is used by the control to determine if the door is closed.
• An additional seal pressure switch prevents inadvertent cycle initiation if the door is not sealed.
• The door assembly is equipped with a mechanical locking mechanism that ensures the door cannot be opened as long as the seal is intact and energized and more than 2.0 psi pressure is in the chamber.
• The sterilizer door opening is fitted with a textured thermoplastic bezel.
• The bezel insulates the operator from the chamber end ring, lessening the chance of accidental contact with a hot metal surface.

Chamber Drain System

• The drain system is designed to prevent pollutants from entering into the water­supply system and sterilizer.
• The automatic condensing system converts chamber steam to condensate and disposes of condensate to waste.
• Cooling water flow is regulated by the waste line RTD to minimize water usage.
• Water supply shutoff valve is located behind the front cabinet service panel under the chamber.

Vacuum System (Prevacuum Units Only)

• Water ejector reduces chamber pressure during the prevacuum and post­drying phases.
• Air is drawn from the chamber through the vacuum system.
• Following the dry phase, the chamber vacuum is relieved to atmospheric pressure by admitting air through a bacteria­retentive filter.

Steam Source

• Sterilizers are piped, valved, and trapped to receive building-supplied steam delivered at 50 to 80 psig (3.5 to 5.6 bar) dynamic.
• If building steam source is not available, an electric carbon-steel steam generator may be provided to supply steam to the sterilizer.
• The steam piping is constructed of brass and includes a shutoff valve, steam strainer, and a brass pressure regulator.

Piping

• All piping connections terminate within the confines of the sterilizer and are accessible from front and side of the sterilizer.
• Solenoid Valves
  • In the manifold with DIN connectors simplify sterilizer piping and can be serviced individually.
• Manual Shutoff Valves
  • Pressure rated at 125 psig (8.62 bar) for saturated steam.
  • Valve handles are low-heat conducting.

MOUNTING ARRANGEMENT

• Sterilizers are arranged for either freestanding or recessed installation, as specified.
• Each sterilizer is equipped with a height-adjustable, steel floor stand.
• Sterilizer subframe is equipped with a synthetic rubber gasket to ensure a tight fit between the cabinet panels on freestanding units or between the front cabinet panel and wall partition on recessed units.
• On freestanding units, stainless-steel side panels and a louvered top panel enclose the sterilizer body and piping.

ACCESSORY

• Seismic Tie-Down Kit – conforms to Title 24 California Code of Regulations, 1993 Amendment Section 2336(B).

UTILITY REQUIREMENTS

Sterilizer Using House Steam

Steam (S)

• 1/2″ NPT, 50 to 80 psig (3.5 to 5.6 bar) dynamic, 97 to 100% vapor quality.

Drain (D)

• 1 1/2″ ODT drain terminal. (Floor drain capacity must handle peak water consumption; refer to Engineering Data.)

Electrical -Controls (EC)

• 120 Volt, 50/60 Hz, 1-phase, 2.0Amps.

Sterilizer Feed Water (FW)

• 1′ NPT, 30 to 50 psig (2.1 to 3.5 bar) dynamic.
• Water is used for ejector and trap cooling.
• Refer to Table 1 for recommended water quality.



• Use of feedwater within the nominal conditions will optimize equipment performance and reduce maintenance.

NOTE: Backflow prevention (not supplied on unit) is not provided.

Sterilizer Equipped with Integral Carbon Steel Steam Generator

Drain (D)

• 1 1/2′ ODT drain terminal. (Floor drain capacity must handle peak water consumption; refer to Engineering Data.)

Generator Drain (GD)

• 1/2″ ODT

Electrical Controls (EC)

• 120 Volt
• 50/60 Hz
• 1-phase
• 9.5 Amps

Electrical Generator (E)

Three Configurations

Config. 1

• 208 Volt
• 50/60 Hz
• 3-phase
• 83.2 Amps

Config. 2

• 240 Volt
• 50/60 Hz
• 3-phase
• 72.2 Amps

Config. 3

• 480 Volt
• 50/60 Hz
• 3-phase
• 37 Amps

Sterilizer Feed Water (FW)

• 1.0′ NPT
• 30 to 50 psig (2.1 to 3.5 bar) dynamic.
• Refer to Table 1 for water specification guidelines.

Steam Generator Feed Water (GFW)

• 1/2″ NPT, 20 to 50 psig (1.4 to 3.5 bar) dynamic.
• Refer to Table 2 for the required water quality.



• Use of feedwater within the nominal conditions will optimize equipment performance and reduce maintenance.

NOTE: Backflow prevention (not supplied on the unit) is not provided.

CUSTOMER IS RESPONSIBLE FOR COMPLIANCE WITH APPLICABLE LOCAL AND NATIONAL CODES AND REGULATIONS.

NOTES

1. The sterilizer is not supplied with a vacuum breaker or backflow preventer and, where required by local codes, installation of such a device in the water line is not provided.
2. Disconnect switches (with OFF position lockout only; not provided) should be installed in electric supply lines near the equipment.
3. Access to the recessing area from the control end of the sterilizer is recommended.
4. If loading car and carriage are to be used with a 20 x 20 x 38″ (508 x 508 x 965 mm) sterilizer, front clearance should be at least 76″ (1930 mm). This will permit complete withdrawal of the loading car from the chamber and allow convenient maneuverabil­ity of the transfer assembly to and from the sterilizer.
5. Floor drain should be provided within confines of sterilizer framework.

STANDARDS

Each sterilizer meets applicable requirements of the following listings and standards, and carries the appropriate symbols:

• Underwriters Laboratory (UL) Standard 544
  • Certified by ETL Testing Laboratories, Inc.
• Canadian Standards Association (CSA) Standard C22.2 No. 125.
• ASME Code, Section VIII, Division 1
  • Unfired pressure vessels.
  • The pressure vessel is so stamped; ASME Form U-1 is furnished.
  • Shell and door are constructed to withstand a working pressure of 50 psig (344.7 kPa).
• ASME Code, Section I, Part PMB
  • For power boilers, if an optional steam generator is supplied.