Lexa sterilizer

High capacity and efficiency

Lexa offers versatile cycle program options for several loads, guaranteed by the closed-door drying process with HEPA filters and the use of fresh water for each cycle.

AR/3-D

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  • Lexa

    Sterilization on a high standard

    Built to offer more of all that counts in every day medical infection control.

    Your sterilization process deserves Lexa!

    • Increased efficiency due to the large chamber capacity and short cycle times, including excellent load drying.
    • Increased flexibility due to the user-friendly trays and exclusive rack design.
    • Increased usability due to the simple and intuitive menu interface, high-end color touchscreen and ergonomic design.
    • Increased protection due to a complete and customizable traceability system.
    Fastest cycles depending on the load
    Flexibility in cycle selection
    Ease of use thanks to smart interface and user-friendly menu structure
    Extended connectivity thanks to Ethernet port (LAN) or Wi-Fi kit (optional). W&H Steri App to control up to 4 sterilizers
    Automatic water
    filling (optional)     for time saving and ease of use
    User authentication and load release option (optional) for a complete and customized traceability system
    Built-in USB
    data logger     for the digital cycle documentation
    Barcode label printer (optional) for the extension of the documentation system by making the link »load – cycle – patient«

    8 kg (18 lbs) sterilized and dried in 30 minutes!

    Higher efficiency due to higher capacity ... Lexa comes with 4 large trays along with a unique rack providing larger loading surface and more loading options.

    ... and less cycle time. Lexa offers versatile program options for several loads in order to reduce overall cycle duration.



    Your advantages at a glance

    • User-friendly interface and high-end colour touchscreen for simple navigation to all sterilization option
    • Customizable drying time
    • Large capacity sterilizer chamber with unique tray and exclusive design
    • Versatile sterilization program options with short cycle times
    • Superior vacuum-assisted drying
    • Meets stringent hygiene standards, including dynamic pulsed air removal, closed door drying and single-use water management
    • Easy maintenance – Lexa does not require periodic execution of cleaning cycles
    • Programmable cycle start
    • Excellent value for money
    • Automatic digital cycle recording on USB stick
    • User authentication and load release (optional)
    • Barcode label printing (optional)

    • ioDent<sup>®</sup>

      ioDent®

      With ioDent®, W&H brings the Internet of Things (IoT) directly into you practice – opening up new dimensions in efficiency, convenience, and digital connectivity. The cloud-based platform intelligently connects your W&H devices, making them an active part of your digital workflow.

      Benefit from automated documentation of cycle protocols and routine tests, real-time monitoring, central device management and much more.

      Discover all ioDent® features

    • W&H Steri App

      W&H Steri App

      The W&H Steri App is an advanced smartphone and tablet application that allows controlling and remote monitoring of the sterilizer in your dental practice.

      Main features:
      * Remote control of your sterilizer
      * Advanced traceability with EliTrace
      * Report creation
      * User management
      * Backup functionality

      W&H Steri App

      Lexa sterilizer

      Lexa sterilizer

      supplied with reversible rack, 4 aluminium trays, drain tube, tray holder, USB drive, door opening tool, factory test

      Lexa MN-111
      110 V
      REF 19943401

      Chamber size 28 l
      100–125 V AC; 50/60 Hz; 12 A Single Phase

      Lexa MN-111
      220 V
      REF 19943101

      Chamber size 28 l
      200–240 V AC; 50/60 Hz 10 A Single Phase

      Request price

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      FAQ

      • What is the maximum noise level of the Lexa sterilizer?
        The max. noise level of Lexa is 65 dB. more
      • Which water quality should I use for my sterilizer?
        The water quality for sterilizers is internationally specified by standards and directives. The reasons for this are that your sterilizer can be seriously damaged by it or the sterilization can be jeopardized. Consequently, only water with conductivity of less than 10 µS/cm should be used for your W&H sterilizer. The Multidem system is especially suited to preparing suitable water (see chapter “Water quality” in the Instructions for Use). more
      • How do I clean the water tanks and what products should I use?
        Water tank cleaning instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu; • in the Consumables & Accessories and Video Tutorial section of this website. more
      • The sterilization (PROCESS) phase of a sterilization cycle was longer than expected.
        POSSIBLE CAUSE
        The chamber temperature dropped below the minimum threshold and the software performed a successful recovery.
        SOLUTION
        Wait for cycle completion. If the problem occurs frequently, contact an authorised W&H service partner. more
      • The sterilizer enters into “Standby mode” immediately after being switched on.
        POSSIBLE CAUSE
        The unit was turned off while in standby mode.
        SOLUTION
        Press the standby mode button to exit. more
      • When starting a cycle, the chamber door locks but re-opens immediately. The “Open the door” message appears.
        POSSIBLE CAUSE
        Door seal not properly placed.
        SOLUTION
        Ensure that the door seal is correctly inserted around the whole circumference.

        POSSIBLE CAUSE
        Door jammed by external objects or by the load itself.
        SOLUTION
        Remove any objects interfering with the chamber door. Check for interference between the door and the chamber furniture and/or the load. more
      • No cycles are stored in the cycle history menu.
        POSSIBLE CAUSE
        An electronic board was replaced when serviced.
        SOLUTION
        The memory of the old board can not be restored. Consult the cycle history in the USB pen drive. more
      • Stains, spots, or colour change on instruments.
        POSSIBLE CAUSE
        Instruments rinsed with tap water and not dried before sterilization.
        SOLUTION
        Ensure that instruments are rinsed with distilled or demineralized water and completely dry before they are placed in the sterilizer.

        POSSIBLE CAUSE
        Use of water of poor quality or water containing chemical substances.
        SOLUTION
        Drain both water tanks. Use good quality water (see chapter “Water quality” in the Instructions for Use).

        POSSIBLE CAUSE
        Organic or chemical residues on the instruments
        SOLUTION
        Clean, rinse, and dry instruments before placing them in the sterilizer (see chapter “Load maintenance and preparation” in the Instructions for Use.

        POSSIBLE CAUSE
        Dirt in chamber, trays, tray rack.
        SOLUTION
        Clean the chamber and wash the chamber furniture.

        POSSIBLE CAUSE
        Contact between instruments of different materials.
        SOLUTION
        Ensure that instruments of different materials do not touch each other (aluminium, carbon or stainless steel, etc.); place them on different trays or cassettes or pouch them (see chapter “Load maintenance and preparation” in the Instructions for Use).

        POSSIBLE CAUSE
        Scale deposits on the chamber.
        SOLUTION
        Clean the chamber and use good quality water (see chapter “Water quality” in the Instructions for Use). more
      • At the end of the cycle, there is residual water on load.
        POSSIBLE CAUSE
        Sterilizer not properly levelled.
        SOLUTION
        Place the sterilizator on a flat, level surface.

        POSSIBLE CAUSE
        Overloaded chamber.
        SOLUTION
        Comply with the maximum load weight limits for each type of load. Always use the chamber rack for trays and cassettes.

        POSSIBLE CAUSE
        Chamber filter clogged.
        SOLUTION
        Remove and clean the chamber filters.

        POSSIBLE CAUSE
        Chamber filter cap mispositioned.
        SOLUTION
        Mount the chamber filter cap properly (see chapter “Monthly or 50-cycle maintenance - Cleaning the chamber filter” in the Instructions for Use).

        POSSIBLE CAUSE
        Load incorrectly placed.
        SOLUTION
        Follow the recommendations as listed in chapter “Load maintenance and preparation” in the Instructions for Use. more
      • Water is leaking at the front of the sterilizer.
        POSSIBLE CAUSE
        Leaks through the chamber door seal.
        SOLUTION
        Clean or replace the door seal. Clean the door surface facing the chamber.

        POSSIBLE CAUSE
        Internal leak.
        SOLUTION
        Contact an authorised W&H service partner. more
      • The sterilizer remains switched OFF.
        POSSIBLE CAUSE
        The main switch or network circuit breaker is OFF.
        SOLUTION
        Activate the main switch or network circuit breaker (ON).

        POSSIBLE CAUSE
        No voltage at the socket.
        SOLUTION
        Check the building electrical supply.

        POSSIBLE CAUSE
        The power cord is not connected properly.
        SOLUTION
        Check and connect the power cord properly. more
      • Should I pouch/wrap my instruments and how long can I store them after sterilization?
        To ensure that your instruments are stored in a sterile state from their successful sterilization until they are used, W&H recommends wrapping them in suitable sterile barrier systems before sterilization. The recommended storage period can be found in the recommendations of the wrapping material manufacturer. For further information, please contact your dealer. more
      • How do I change consumable components on my sterilizer?
        Consumable replacement instructions are provided in the Instructions for Use, chapter “Maintenance”. In addition, a video description is available: • in the sterilizer, in the maintenance section of the menu; • in the Consumables & Accessories and Video Tutorial section of this website. more
      • Who should I contact to validate and maintain my sterilizer?
        Validation shall be carried out by an official authority. Maintenance tasks shall be carried out by a qualified and authorised technician. more
      • Does my sterilizer need any periodic qualification/validation?
        Validation generally comprises a range of tests defined in internationally recognised standards. These tests begin for every device with the factory tests at W&H. In addition, corresponding documentation is included with your device. Prior to commissioning the device at your premises, the technician performs further checks to ensure the device functions correctly. Then, depending on the national/regional laws and directives, the device must be subjected to a so-called renewed performance qualification at regular intervals. For further information, please contact your dealer. more
      • How long should I archive the documentation of regular tests?
        Keep the results according to your country/regional specific laws and guidelines. Those records can be of assistance in case of service as well. more
      • Do I need to document the results of all periodic tests?
        W&H recommends recording all periodic tests, repairs, and modifications on the sterilizer in a logbook including date and signature of the person who carried out the test or other activity. Compulsorily of recording is regulated by local/national guidelines. more
      • What is validation?
        Validation is a testing procedure carried out by an official authority, proving the effectiveness of your sterilizer. Compulsories and frequency of validation are regulated by local/national guidelines. more
      • Warning about consumable replacement.
        POSSIBLE CAUSE
        A consumable needs to be replaced.
        SOLUTION
        Order the requested consumable (door seal and HEPA/bacteriological filter) and replace it. See the chapter “Maintenance” in the Instructions for Use. more
      • The sterilizer is connected to an automated water supply system, there is no clean water in the tank and the automatic water filling does not fill the water.
        POSSIBLE CAUSE
        Water filling system not connected.
        SOLUTION
        Connect the water filling system to the sterilizer. (see Instructions for Use).

        POSSIBLE CAUSE
        When the water filling system attempted to fill the tank, water was temporarily unavailable.
        SOLUTION
        Since the water tank filling is attempted only once in-between cycle execution, this event inhibits water feeding. Switch the sterilizer OFF and then ON again.
        Check the external water supply system.
        Check for water leaks from the sterilizer.

        POSSIBLE CAUSE
        Faulty MIN water level sensor in the clean water tank.
        SOLUTION
        Contact an authorised W&H service partner. more
      • The cycle report printer does not work.
        POSSIBLE CAUSE
        Printer not properly connected or not powered.
        SOLUTION
        Check the data and power connection to the printer. more
      • Warning about saving to the USB (HTML and SCL files)
        POSSIBLE CAUSE
        The USB drive is disconnected or full.
        SOLUTION
        Check presence and condition of the USB drive. If the problem persists, contact an authorised W&H service partner. more
      • Do I need to carry out periodic testing on my W&H sterilizer?
        All W&H sterilizers feature test cycles (B&D/Helix test, Vacuum test). Compulsory and frequency of testing are regulated by local/national guidelines. more
      more

      Instructions for use

      Instructions for use
      Lexa sterilizer

      Find all languages of the Update Hygiene and Maintenance (EN ISO 17664:2017) in the Download Centre.

      Downloads

      Service

    • Lexa sterilization programs

      Sterilization cycle Unwrapped Pouches Medium Load
      		 Pouches Large Load Pouches & Wrapped Cassettes Wrapped
      Cassettes
      		 Low
      Temperature
      Temperature: 132°C (270°F) 132°C (270°F) 132°C (270°F) 132°C (270°F) 132°C (270°F) 121°C (250°F)
      Holding time (minutes): 4’ 4’ 4’ 4’ 4’ 30’
      Total cycle duration (minutes) including drying*: 26’–39’ 43’–53’ 48’–58’ 53'-64' 58'-71' 73’–79’
      Max. load (excluding trays): 8.1 kg (18 lbs) 1.4 kg (3 lbs) 2.7 kg (6 lbs) 5.0 kg (11 lbs) 6.4 kg (14 lbs) 2.3 & 2 kg (5 & 4.4 lbs) including trays


      Items supplied with: chamber rack, 4 larger trays, tray holder, drain tube, USB drive.


      * Cycle times are approximate and may vary depending on voltage and instrument loads.

      Trade name: Lexa 110 V Lexa 220 V
      Type: MN-111
      Chamber size: 28 l (7.4 gal)
      Power supply: 100–125 V AC; 50/60 Hz; 12 A Single Phase
      		200–240 V AC; 50/60 Hz 10 A Single Phase
      Overall dimension
      (width x height x depth):       		490 x 452 x 616 mm (19.3“ x 17.8“ x 24.3“)
      Weight: 48 kg (105.8 lbs)
      Main / Used water tanks: 6.4/6.7 l (1.7/1.8 gal)
      Connection types: 5 USB ports, 1 Ethernet port

      Lexa sterilizers were designed, certified and validated according to the following standards and directives:
      N°2017/745 Medical Device Regulation
      EN 13060 Small steam sterilizer
      IEC 61326-1 Electromagnetic compatibility
      IEC 61010-1 Safety requirements
      IEC 61010-2-040 Specific requirements for steam sterilizer
      IEC 61770 Back syphonage
      ASME* Boiler and pressure vessel code
      ANSI/AAMI ST55 Table-top steam sterilizers
      CSA C22.2 No. 61010-1-12 Safety requirements for electrical equipment for measurement, control and laboratory use, general requirements.
      2012/19/EU Waste Electrical and Electronic Equipment (WEEE)
      2014/68/EU Pressure Equipment Directive
      UL 61010-1 Safety requirements for electrical equipment for measurement, control and laboratory use, general requirements.


      The sterilizer can be validated according to EN ISO 17665-1

      *On Request

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