Load maintenance and preparation45
Typical loads48
Prepare the sterilizer48
Sterilization cycle management49
Unloading54
Sterilization cycle report54
Maintenance59
Warnings for maintenance operations59
User maintenance59
Monthly or 50-cycle maintenance61
1200-cycle or yearly maintenance64
Extraordinary maintenance67
Disposal68
CONFORMITY TO EUROPEAN AND AMERICAN REGULATIONS,
STANDARDS AND DIRECTIVES
Sterilizer conforms with the following Regulations, Standards and
Directives:
Standards
and
Directives
2014/68/EU
2012/19/EU
CSA C22.2 No.
61010-1
UL 61010-1
ASME
EN 13060
Description
Medical Device Regulation (MDR) / Regulation (UE) n. 2017/745
for medical devices. Class IIb devices, in accordance with the Rule
16 – ANNEX VIII of the above Regulation
For Device in compliance with Machinery Directive (2006/42/EC),
Low Voltage Directive (2014/35/EU) and Electomagnetic
Compatibility Directive (2014/30/EU)
Pressure Equipment Directive (PED) / Directive 2014/68/EU (PED
– Pressure Equipment Directive) for every sterilization chamber
designed and manufactured in conformity to the ANNEX 1 and to
the procedure described in the moduleD1 Annex III
Waste Electrical and Electronic Equipment Directive (WEEE)
Safety requirements for electrical equipment for measurement,
control and laboratory use, general requirements
Safety requirements for electrical equipment for measurement,
control and laboratory use, general requirements
Boiler and pressure vessel code
Small steam sterilizers
Standards
and
Directives
ANSI/AAMI
ST55
IEC 61010-1
IEC 61010-2040
IEC 61326-1
IEC 61770
Description
Table-top steam sterilizers
Safety requirements for electrical equipment for measurement,
control and laboratory use, general requirements
Safety requirements for electrical equipment for measurement,
control and laboratory use; particular requirements for sterilizers
and washer-disinfectors used to treat medical materials
Electrical equipment for measurement, control and laboratory use
- EMC requirements; general requirements
Electric appliances connected to the water mains - Avoidance of
backsiphonage and failure of hose-sets
Note: every new sterilizer is delivered with a Declaration of Conformity and a
Warranty Card.
WARNING: indicates a hazardous situation that, if not avoided, could
result in death or serious injury.
Related to a sterilizer, these warnings indicate hazardous situations
that could result in non-sterile conditions (e.g. non-sterile instruments)
which could lead to fatal personal injury.
CAUTION: indicates a hazardous situation that, if not avoided, could
result in minor or moderate injury.
SYMBOLS DISPLAYED ON THE PRODUCT
Hot surfaces!
Risk of burns.
Hot steam!
Risk of burns.
Consult the
Instructions for Use
for important
cautionary
information.
Don't use drinking
water to fill the clean
water tank; use
distilled or
demineralized water
only.
Consult the
Instructions for Use.
Disposal / Do not
dispose of with normal
waste.
PROPERTY DAMAGE MESSAGES
Notice: indicates information considered important, but not hazard-related. Typically to avoid damage to the product.
The purpose of this manual is to provide information about Lexa
sterilizers to ensure:
n proper installation and set-up
n optimal use
n safe and reliable operation
n compliance with regular maintenance and servicing
requirements
Please carefully read the safety information (see "Safety warnings"
on page12).
OBLIGATIONS WITH REGARD TO THIS MANUAL
This manual is an integral part of the product and accompanies it for
its entire working life. It must be consulted in all situations related to
the life cycle of the product, from its delivery through to
decommissioning. For this reason, it should always be accessible to
operators both online and offline.
Contact customer service in the event the manual is unavailable. If
the device is transferred, always attach the manual for the new
owner.
MANUAL CONTENT
This manual contains the Instructions for Use and for maintenance
of the following sterilizer versions:
n MN-111 100–125 V ac
n MN-111 200–240 V ac
DISCLAIMER
All pictures, graphics and illustrations provided in this manual are for
the comprehension of the text. They are not meant to be an accurate
representation of product details. Thus, they should be taken as
indicative only, and may differ from the actual product.
For any suggestions or remarks please send an email to
[email protected].
All drawings, images and texts contained in this manual are the
property of the manufacturer. Even partial duplication of drawings,
images or text is prohibited.
The information contained in this document is subject to change
without prior notice.
Use restrictions
INTENDED USE
For Medical Device in accordance with Regulation EU 2017/745:
The small steam sterilizers are intended for the sterilization of
invasive and non-invasive medical devices. The devices are
intended for professional use by trained people only.
For other purposes out of the scope of Regulation EU 2017/745:
The small steam sterilizers are intended for the sterilization of
devices other than invasive and non-invasive medical ones. The
small steam sterilizers are intended for the sterilization in veterinary
practices. They are also intended to be used for materials and
equipment which are likely to come into contact with blood or body
fluids, e.g. implements used by beauty therapists, tattooists, body
piercers and hairdressers.
The devices are intended for professional use by trained people
only.
For North American market:
The Lexa is designed for pressurized steam sterilization of medical
and pouched dental instruments, including dental handpieces,
porous and hollow loads.
Key program features, including sterilization time, temperature and
recommended load type are listed in the following table:
Program
Pouches
Medium Load
Pouches
Large Load
Pouches &
Wrapped
Cassettes
Wrapped
Cassettes
Type of Load
and Load
weight
Instruments
and dental
handpieces,
up to 3 lbs
(1.4 kg).
Instruments
and dental
handpieces,
up to 6 lbs
(2.7 kg).
Instruments
and dental
handpieces,
up to 11 lbs
(5 kg).
Instruments
and dental
handpieces,
up to 14 lbs
(6.3 kg).
Sterilization
Temperature
270 °F
(132 °C)
270 °F
(132 °C)
270 °F
(132 °C)
270 °F
(132 °C)
Sterilization
Time
4 minutes
4 minutes
4 minutes
4 minutes
Drying Time
(recommended)
25 minutes
30 minutes
35 minutes
40 minutes
Program
Low
Temperature
Unwrapped
Type of Load
and Load
weight
Textiles, up to
4.4 lbs (2 kg),
or
instruments
and dental
handpieces
requiring low
temperature,
up to 5 lbs
(2.3 kg).
Instruments
and dental
handpieces,
up to 18 lbs
(8.1 kg).
Unwrapped,
naked.
Sterilization
Temperature
250 °F
(121 °C)
270 °F
(132 °C)
Sterilization
Time
30 minutes
4 minutes
Drying Time
(recommended)
30 minutes
8 minutes
See "Sterilization programs" on page83 for the full list of key
program features, including sterilization time, temperature, drying
time and recommended load type.
The users who may operate the sterilizer are the following.
Introduction
User
qualification
Head of the
clinic/practice
Trained
operators
Competences
Legally responsible for:
n the efficiency of the hygiene protocol in place
n the sterilization process
n the operators' training and training documentation
n the correct operation and maintenance of the equipment
n Regularly attend the training for operating and using the
carried out by authorized service providers
always using genuine spare parts.
REQUIREMENTS
n All accessories connected to the sterilizer shall
be FDA cleared.
n Use only the power cord set and accessories
provided by the manufacturer.
n Serious incidents that have occurred in relation
to this medical device should be reported to the
manufacturer and competent authority in the
country where the incident occurred.
n In case of malfunction of the sterilizer, contact
an authorized technician or the manufacturer.
CYBER SECURITY
The device is designed in such a way that a cyber-attack or software
failure does not compromise the safety in relation to the intended
use. A successful cyber-attack cannot result in direct patient harm:
in fact, the device is not in contact with patients.
The device does not share any data (sensible and not sensible)
related to patients.
To further protect the device and minimize successful cyber-attacks,
the following precautions have been taken:
n the access to the device operating system is not possible (user
access to the operating system is disabled);
n a firewall is active on the device; all the device network
connections (to and from the external world) are managed by
the firewall which, following specific rules, filters them and
blocks everything that is not strictly necessary for the device;
n the update/install operations are only possible using signed
and encrypted software, provided by W&H;
n during the normal use, the operating system and the
application (responsible for the device functionalities) are
located in a read- only memory, so to avoid intentional
corruption;
n all the sterilization data are secured by means of checksum
controls.
In order to minimize the possibility of cyber- attacks, it is user
responsibility to apply the following measures:
n software update/install shall be done by authorized and trained
personnel only;
n it is recommended to activate a firewall on the router/modem
used for the internet connection.
Note: further security information is mentioned in the MDS2 document,
which is available on request.
Notice: check the external conditions of the box and the sterilizer. In
case of any damage, immediately contact the dealer or shipping
agent that has carried out the transport. Keep the packaging for
shipping or transporting the sterilizer in the future.
Note: the packaging of the product is environmentally friendly and can be
disposed of by industrial recycling companies.
Do not place the sterilizer so that it is difficult to operate the controls
behind the service door. Do not place the sterilizer so that it is
difficult to disconnect the power cord.
Leave the condenser grid (rear side of the sterilizer) free from
anything that might obstruct the air passage.
Surface materials should be water resistant. If sterilization cycles
will be continuous, pay attention to the surrounding materials: steam
can damage them.
The sterilizer must operate in absence of explosive atmospheres.
The sterilizer must operate in a well ventilated room (indoor), far
from sources of heat and from flammable materials.
Place the sterilizer on a flat and level surface.
Clearance requirements to ensure proper air circulation:
ELECTRICAL CONNECTIONS
All the cables and tubes connected on the rear side of the sterilizer
must be placed far from the condenser grid (e.g. using the available
guides).
Notice:
Connect the sterilizer to a dedicated line. Do not use cable
extensions nor multiple sockets/adapters.
Ensure that external and internal surfaces are free from moisture or
condensation before connecting to power.
The installation of the sterilizer shall be performed by two authorized
technicians using PPE (Personal Protective Equipment) according to
applicable standards.
The electrical power supply of the sterilizer must fulfill all applicable
standards in the country of use, and must comply with the data label
on the back of the sterilizer.
The sterilizer clean water tank can be filled manually by the user or
automatically with a water supply system . The water supply system
must deliver demineralized or distilled water meeting the
specifications listed in these instructions. Do not add any
chemical/additive to the water.
The manufacturer’s warranty is void if the sterilizer was used with
water containing either chemical additives, or contaminant levels
exceeding those listed in these instructions. See "Feed water
specifications (ANSI/AAMI and AAMI TIR34)" on page95.
Notice: the maintenance of the external water filling system must be
done in exact accordance with the Instructions for Use given with the
relevant system.
WATER TANKS
At every cycle the sterilizer uses new fresh water and, at the end of
the cycle, discharges it. Thus, the sterilizer is fitted with two water
tanks : the clean water tank and the used water tank.
For this reason is necessary to periodically fill the clean water tank
and draining the used water tank.
FILLING THE CLEAN WATER TANK
Notice:
Before carrying out the following steps, make sure that the sterilizer
has completed the cycle in progress.
Always wear appropriate PPE during use of the sterilizer (e.g. gloves
for cleaning, maintenance, etc...).
1 If switched-off, switch the sterilizer ON. If the clean water tank is
almost empty, an alert appears on the display.
2 Open the chamber door.
3 Fill the clean water tank with a water container (app. 1.7 gal
(6.4 l)).
Notice: the water must be demineralized or distilled meeting
the specifications listed in these instructions (see "Feed water
specifications (ANSI/AAMI and AAMI TIR34)" on page95). Do not
add any chemical / additive to the water.
Notice: take care not to pour the clean water out of the tank.
4 Once the clean water tank is almost full, an audible tone
Before carrying out the following steps, make sure that the sterilizer
has completed the cycle in progress.
Always wear appropriate PPE during use of the sterilizer (e.g. gloves
for cleaning, maintenance, etc...).
1 If the used water tank is almost full, an alert appears on the
display.
2 Open the service door at the front of the sterilizer.
3 Put a container (1.84 gal (7 l) min)
below the sterilizer and insert into it
the free end of the drain tube.
4 Plug the other end of the drain tube
into the drain connector until it
clicks. Make sure that the connector
is firmly engaged.
Use left connector (blue, 1) for the
clean water and the right connector
(grey, 2) for the used water.
cable in the LANport of your
computer or computer
network: when the sterilizer
will be switched on it will
connect automatically to the
LAN.
WI-FI CONNECTION
For the Wi-Fi connection proceed as follows:
1 Insert the Wi-Fi dongle key in the USB port.
2 Read the Instructions for Use provided with the Wi-Fi dongle key.
INSTALLING THE STERILIZER
WARNING! In case of sterilizer malfunctions immediately
unplug the sterilizer and call for service. Do not attempt to
repair the sterilizer by yourself.
Notice:
Please ensure that all installation requirements are met before
plugging the sterilizer. See "Connection diagrams" on page94.
No other devices should be connected to the sterilizer power panel
circuit.
1 Place the sterilizer on a sturdy, flat and level surface.
2 Open the chamber door, remove all items from the sterilizer
chamber except the chamber rack. Remove all plastic covers
from trays.
3 Connect the auto-fill and auto-drain tubes in the rear of the
sterilizer (optional).
4 Connect the Ethernet cable or the Wi-Fi dongle key in the rear of
the sterilizer (optional).
5 Attach the power cord to the socket in the rear of the sterilizer
and route the cord through the cable guides.
6 Connect the power cord to a wall outlet. For power supply
Sets the unit of measure (temperature, water
conductivity and pressure).
Programs a sequence of cycles to be run on daily
basis.
Opens the pages to manage the network connection.
Manages the Ethernet network.
Allows wireless network selection and configuration.
Only with a network connection set. Provides
information about the network status.
IoDent
Only if this service is supported in the country of use,
and if the sterilizer is connected to it. Shows the
status of the connection with the W&H monitoring
Akidata status
server.
IconLabelFunction
Remote Data
Storage
Settings
Only with a network connection set. Opens the page
to manage the remote storage.
Only with a network connection set. Sets the
parameters of the network location.
Save all
Only with a network connection set. Copies all the
files in the specified location in the network.
Test
Only with a network connection set. Checks if the
files can be copied to the specified location.
USB options
Traceability
Enables/disables USB warning messages.
Chooses if the sterilizer is master or slave.
Settings
Guided
Configuration
Allows to start the configuration of:
n language.
n network connection.
n time zone settings.
n date & time settings.
n sterilizer name.
At the first start- up of the sterilizer, the Guided Configuration
procedure automatically appears; this procedure allows to set some
parameters of the unit, such as:
n Language
n Network connection (where applicable)
n Time zone settings
n Date & time settings
n Sterilizer name
At any time, to force the Guided Configuration:
1 On the homepage, tap>>>
2 Follow the Guided Configuration on the sterilizer screen.
SET THE DATE AND TIME
To change the date and time format, current date and time and time
zone:
1 On the homepage, tap>>
2 Tap the value you want to change (format, time, date and/or
time zone).
3 Tap the desired value.
SET THE STERILIZER NAME
To change the sterilizer name that appears in the cycle reports:
1 On the homepage, tap>>>
2 Tap the text box: a keyboard appears.
3 Enter the new sterilizer name.
4 Tapto confirm.
SET THE DISPLAY BRIGHTNESS
To change the display brightness:
1 On the homepage, tap>>
2 Taporto change the value.
3 Tapto confirm.
CONNECT TO A NETWORK
If you connect through an Ethernet cable, in most cases the sterilizer
will connect to the network automatically. If it does not connect
automatically, or if you are using a Wi-Fi dongle key, follow the
following procedure under supervision of your IT manager / network
administrator.
2 If the connection is through the Ethernet cable, tap: the
TCP/IP screen appears.
3 If the connection is through Wi-Fi dongle key, tap: after a
while, the sterilizer shows the available networks found. Choose
the network, enter the credentials in the following screen, then
tapto confirm:the TCP/IP screen appears.
Note: theandicons are disabled if the connectivity means
(cable or Wi-Fi dongle key) are not properly plugged.
Note: in the TPC/IP screen, theicon is visible only if you make
any change. The Wi-Fi icon at the bottom isn't visible if you connect
through Ethernet cable.
4 If your network supports dynamic IP addresses (ask your
ITmanager), enable the options Dynamic both in IP
Configuration and in the DNS Configuration fields, then tap
to confirm: all entry fields are disabled.
5 If your network does not support dynamic IP addresses (ask
your ITmanager), enable the options Static both in IP
Configuration and in the DNS Configuration fields. Tap on
each entry field and enter the IP addresses (ask your IT
manager for details). Then tapto confirm.
ioDent
DESCRIPTION
It allows to save the data securely and automatically on the cloud
and it ensures intelligent and networked reprocessing of
instruments, with a wide selection of smart solutions and options.
ACCESS TO IODENT
For the ioDent access proceed as follows:
1 On the homepage, tap>>>>.
Note: for more information see the dedicated documentation.
User authentication (optional)
FUNCTION AVAILABILITY
To access the user management functions a special code must be
entered. The special code is required only at the first access to the
User Management () or the Options () menus: after the code
was entered, the function is enabled and there is no need to enter
the code again.
If you want to disable the function another special code must be
entered.
PIN “0000” is assigned as default to each new user. It has to be
changed at the first login. When the PIN is reset the default value
“0000” is reassigned.
CHANGE YOUR PIN
Change your PIN the first time you use the sterilizer and if your PIN
has been reset. This will prevent other users to use your account.
1 On the homepage, tap>>>
2 Tap your user name.
3 Enter your current PIN and tapto confirm.
4 Tap.
5 Enter your new PIN and tapto confirm:a confirmation
message with your new PIN appears.
6 Tapand thento go back to the previous page.
WHAT TO DO IF YOU FORGET YOUR PIN
If...Then...
you are a common usercontact the administrator
you are the administratorcontact your authorized service provider
EliTrace (optional)
FUNCTION AVAILABILITY
To access the EliTrace functions the EliTrace activation code must be
entered. The activation code is required only at the first access to
the EliTrace () menu: after the code was entered, the function is
enabled and there is no need to enter the code again.
To acquire the activation code please refer to the activation code
instructions.
DESCRIPTION
EliTrace allows to know exactly which instruments were sterilized
and link them to a specific cycle.
ACCESS TO ELITRACE
For the EliTrace access proceed as follows:
1 On the homepage tap>>>
Note: for more information see the dedicated documentation.
A USB pen drive is available to be installed in order to automatically
record all the sterilization cycle reports. The USB pen drive can be
inserted equally into the front or rear port.
Notice: periodically remove the USB pen drive to save the cycle data
on a computer or on another safe support.
FORMAT THE USB PEN DRIVE
1 Insert the USB pen drive in one USB port.
2 On the homepage, tap>>>
3 Tap.
4 Tapto confirm: all data will be erased.
5 Tapto confirm and go back to the previous page.
Notice: formatting erases all data from the pen drive. Be sure you
have already saved your data on a safe support before formatting.
Standby mode
DESCRIPTION
When in Standby mode, the sterilizer display remains dark and the
sterilizer chamber is not heated to save energy. If the sterilizer is not
used for three hours, it automatically switches to Standby mode.
User management (optional)38
Traceability options (optional)39
Hide/Unhide a cycle40
User management (optional)
FUNCTION AVAILABILITY
To access the user management functions a special code must be
entered. The special code is required only at the first access to the
User Management () or the Options () menus: after the code
was entered, the function is enabled and there is no need to enter
the code again.
If you want to disable the function another special code must be
entered.
Note: for more information contact your dealer.
WHO CAN MANAGE USERS AND RESET THEIR PIN
Only a user with administrator rights can create and delete users and
reset the PIN code of a user to "0000".
ADD A USER
1 On the homepage, tap>>>
2 Tap your user name.
3 Enter the PIN and tapto confirm.
4 Tap.
5 Tap the text box:a keyboard appears.
6 Enter the new user name and tapto confirm.
7 If desired, tapto give the administrator authority to the new
user.
8 Tapto confirm:the PIN of the new user is set to "0000" and
4 Tapand the user name for which you want to reset the PIN.
5 Tapto confirm:the PIN is set to "0000" and a confirmation
message appears.
6 Tapto return to the homepage.
Note: remember the user to change its PIN before reusing the sterilizer (
>>>>).
Traceability options (optional)
FUNCTION AVAILABILITY
To access the user management functions a special code must be
entered. The special code is required only at the first access to the
Options () menus: after the code was entered, the function is
enabled and there is no need to enter the code again.
If you want to disable the function another special code must be
entered.
Note: for more information contact your dealer.
WHO CAN SET THE TRACEABILITY OPTIONS
Only a user with administrator rights can set the traceability options.
SET THE TRACEABILITY OPTIONS
1 On the homepage, tap>>>
2 Tap your user name.
3 Enter your PIN and tapto confirm.
4 Tap the information to be requested to the users at the
beginning and at the end of the cycle.
5 If you want the user to check the load and release it as valid at
Note: the sterilizer only supports the specific printer models available
through manufacturer/distributor.
1 On the homepage, tap>>>
2 Tap the model of the printer to use.
3 Tapto confirm and go back to the previous page.
Label printer selection (optional)
FUNCTION AVAILABILITY
The first time you access the Label Printer () menu, you will be
requested to enter an activaction code. To require the activation
code, please refer to the activation code instructions provided with
the label printer.
LABEL PRINTER SETUP
Labels can be printed by a local label printer or (only with a LAN
connection set) a shared label printer. The local label printer is
connected to the sterilizer, while the shared label printer is
connected to another sterilizer in the network.
code, please refer to the activation code instructions provided with
the label printer.
AUTOMATIC PRINTING OPTION
The automatic printing option permits to automatically print a preset
number of labels after a successful sterilization cycle. The labels are
printed only after the user has identified him/herself (with password
if required) and the load has been checked and released, if these
options have been enabled by the administrator.
For the automatic label printing, a maximum storage time in weeks
can be set. This value is used to calculate the expiry date to be
printed on the labels (see "Label content description" on the next
page).
SET THE AUTOMATIC LABEL PRINTING
1 On the homepage, tap>>>
2
Activate Automatic printing.
3 Taporto set the maximum storage time and the number
of labels to be printed automatically.
4 Tapto confirm and go back to the previous page.
SET THE MANUAL LABEL PRINTING
The manual printing option permits the user at the beginning of a
sterilization cycle to set manually the number of labels to print.
1 On the homepage, tap>>>
2
Activate Manual printing.
3 Tapto confirm and go back to the previous page.
DISABLE THE LABEL PRINTING
If the label printing is disabled, no label can be printed at the end of
a sterilization cycle.
Load maintenance and preparation45
Typical loads48
Prepare the sterilizer48
Sterilization cycle management49
Unloading54
Sterilization cycle report54
Load maintenance and preparation
WARNINGS
WARNING! Any residual of chemicals (like cleaning and
disinfection products), could affect the purity of the
steam and consequently the whole sterilization process.
If necessary, the load shall be cleaned and lubricated in
accordance with the instrument manufacturer’s
instructions.
Notice: any residual of chemicals could seriously damage the
sterilizer. The manufacturer’s warranty is void in case of damage
caused by chemicals.
DENTAL HANDPIECE EXTERNAL DISINFECTION
This procedure reduces the risk of infection during cleaning and
maintenance of the dental handpieces.
n Wear protective gloves during disinfection.
n Avoid using abrasive disinfectants (pH-value 2.5 – 9; no
chlorine based disinfectants).
n Use disinfectant wipes rather than spray disinfection.
n Do not immerse handpieces in disinfectants.
n Residual disinfectants on handpieces can cause extensive
damage to your instrumentation during sterilization (oxidation,
alteration of technical characteristics of seals, rubbers, fiber
optics, etc.).
This procedure involves the removal of residues (blood, dentine,
etc.) that adhere to critical areas such as spray outlets, light ports,
knurling etc.
n Wear protective gloves during cleaning.
n Refer to the instructions of the instrument manufacturer.
n Use a soft, damp brush and take care not to scratch the surface
of the light ports.
DENTAL HANDPIECE LUBRICATION
Once the dental handpieces has been disinfected, cleaned and dried
(free from residues), it must be lubricated prior to sterilization.
Follow manufacturer’s instructions for proper lubrication.
PACKAGING
In order to preserve sterility, rotating instruments should be
wrapped/bagged prior to sterilization. Follow the manufacturer’s
packing instructions when using sterilization packaging.
CLEANING THE INSTRUMENTS
Clean all instruments thoroughly prior to sterilization. If possible,
clean instruments immediately after use; always follow the
instrument manufacturer ‘s instructions. Remove all traces of
disinfectants and detergents. Rinse and dry carefully all
instruments.
The instruments and tubes must be carefully rinsed and dried prior
to sterilization.
CORRECT LOAD PLACEMENT
WARNING! Do not overload trays and the chamber. Adhere
to the maximum load weight limits (see "Sterilization
programs" on page83).
Wrap items with porous wrapping materials to facilitate steam
penetration and drying (e.g. sterilization bags for autoclaves).
WARNING! Always use the chamber rack. Failing to use the
chamber rack can damage the unit and could affect
adequate steam circulation.
Cassettes can be placed vertically or horizontally
into the chamber rack (vertical placement
enhances drying). When placing cassettes
horizontally, slide them into the rack position
without putting them on trays (if size allows) to
enhance drying. When sterilizing double-decker
cassettes, place them in the lowest rack position
as there is more space height-wise.
Items made from different
materials (stainless steel,
carbon steel, aluminium, etc.)
Instruments manufactured
from carbon steel
Chemical/biological indicator
and Helix strip/s
On trays allowing adequate space in-between
bags. Ensure that packs do not touch the walls of
the chamber. Place sterilization pouched items
with the paper side facing up.
On separate trays or wrapped/pouched.
Place paper among them and the trays to avoid
rusty spots.
For more information see the dedicated
documentation.
PARTIAL LOAD
If the chamber is just partially loaded, place the load in such a way
that the space in-between the trays is maximized. Spread items
evenly on multiple trays. Below is a example with three trays.
Tapto display further cycles on the next page, if any.
2 Check the cycle requirements.
3 Tapto set a different start time. See "Delay the sterilization
cycle start" on the next page.
4 Tap: the door locks. If you have not set a different start time,
the cycle starts immediately.
5 Tapto view the cycle information. See "View the cycle
parameters" on page52.
6 The sterilization is completed. Tapto view the cycle
summary (to check the cycles values manually, see
"STERILIZATION CYCLE MONITORING" below) or tapto view
the cycle information. See "View the cycle parameters" on
page52.
7
Tap OPEN: the door unlocks and the homepage appears.
8 If required, enter your credentials and confirm the load release.
Note : the load release is possible only if the cycle is completed
successfully.
Note: the user visually checks that pouches are intact and dry. It is even
possible to identify the user who releases the load, accepts the cycle
plateau time, cycle minimum temperature and cycle minimum pressure.
Note: during the load release it is also possible to accept or reject the Helix
strip, biological indicator and chemical indicator results (for more
information see the dedicated documentation).
STERILIZATION CYCLE MONITORING
Even if the sterilization process is automatically monitored by the
software and the values of temperature, pressure and duration are
controlled, there is the possibility to check the values manually. See
the table below for the correct values of the temperature, pressure,
and duration in order to confirm manually the proper execution of
the cycle.
You may schedule the start of the sterilization cycles at a certain
date and time (e.g., if you want to load the sterilizer in the evening
and run standard sterilization cycle early the next morning before
office hours). You can set the cycle start date and time and enable or
disable it for each cycle.
1 On the homepage, tap the cycle and.
2
Tap Start cycle at.
3 If you want to change the start time, tap the time or the date: a
settings page opens.
4 Tap the number you want to change and taporto
increase it or decrease it.
5 Tapto confirm. This date and time become the scheduled
default start time for all next sterilization cycles.
6 Tapto lock the door; a new page appears.
Note: if nothing else is pressed, the cycle will start at the programmed
time. The page allows also to start the cycle immediately ("Start now") or to
delete the operation and the programmed cycle ("Stop").
SET THE DRYING TIME
Drying time is set by default for each sterilization program. The
default drying time for each sterilization program can only be
increased from the default value.
When a cycle is successfully finished, the "Cycle completed"
message appears on the screen. To end the cycle:
1 Tapto view the cycle summary or tapto view the cycle
parameters. See "View the cycle parameters" on the previous
page.
2
Tap OPEN to open the door: the door unlocks and the home
page appears.
Note: if an error message appears see "Troubleshooting" on page74
CAUTION! Hot surfaces.
Burnings. Do not touch the
chamber, the internal side
of the door and the internal
fittings. Use the tray holder
or cassette holder or
gloves for high
temperatures or adequate
protection to remove the
load!
3 Open the chamber door.
4 Remove the load and stock it.
STOP A STERILIZATION CYCLE
WARNING! You can stop the cycle at any time. Instruments
must not be considered sterile if this occurs before the
DRY phase.
A cycle can be manually aborted at any time. To stop a cycle:
1
Tap STOP: a confirmation request appears.
2 Tapto abort the stop command. The cycle continues
programmed.
3 Tapto abort the cycle: the sterilizer starts a reset phase.
Notice: do not switch off the sterilizer during the reset phase: it
takes some time to reset the system and reach safe conditions in
the sterilizer chamber.
4 Check the message. See "Messages of a stopped sterilization
cycle" on the next page.
5 Tapto view the cycle parameters. See "View the cycle
parameters" on the previous page.
6 Open the chamber door.
7 Reprocess the load if necessary.
CAUTION! Hot steam. Wait the steam to dissipate before
Note: water could be present in the chamber when opening the door. To
prevent spilling place a towel below the chamber door.
MESSAGES OF A STOPPED STERILIZATION CYCLE
Following are the messages:
n Load not sterile: Do not use items on patients!
n Drying interrupted: The load might be wet. Wet items are for
immediate use only!
Unloading
WARNINGS
CAUTION! Risk of burns. Before touching, ensure the
sterilization chamber is cold. Always use the tray holder.
Sterilization cycle report
WHERE CYCLE DATA ARE STORED
The sterilizer stores in memory the summarized reports of the last
400 cycles and the analytical reports of the last 5 cycles. All reports
can also be saved on the USB pen drive or in a specific remote folder
in the network if the sterilizer is connected to a LAN (optional). A
minimum of 10000 cycles are storable in the provided USB.
STORED REPORT FORMAT
The summarized reports are stored in HTML format and the analytical
reports in SCL format. All parameters are recorded every second.
WHAT HAPPENS WITH UNSAVED CYCLES
If for any reason (e.g. USB memory full, USB pen drive disconnected,
etc.) some cycles cannot be saved, no alert is shown. If still stored in
memory, the unsaved cycles will be copied in a working USB pen
drive connected to the sterilizer as soon as a new cycle starts.
VIEW CYCLE HISTORY
To view the sterilization cycle history:
1 On the homepage, tap>: all the sterilization cycles are
listed with number, date, time and sterilization program. The
interrupted sterilization cycles appear in red.
2 Scroll the list and tap the desired sterilization cycle: the report
Warnings for maintenance operations59
User maintenance59
Monthly or 50-cycle maintenance61
1200-cycle or yearly maintenance64
Extraordinary maintenance67
Disposal68
Warnings for maintenance operations
WARNINGS
WARNING! Turn the sterilizer OFF and remove the power
cord before beginning any maintenance. Follow all health,
safety, cross-infection and cross-contamination
protocols.
Maintenance operation shall be done at illumination level
of 215 lx (±15 lx) to 1500 lx (±15 lx).
Before making any operation, ward off unauthorized
personnel from the working area.
CAUTION! Before accessing the chamber and the connected
parts, be sure that the sterilizer is cold.
Notice: follow the instructions in this chapter when carrying out any
maintenance on the sterilizer.
User maintenance
MAINTENANCE BY THE USER
1200
1
Operation
Cleaning the door gasket and the chamber face
side. See "Cleaning the door gasket and the
chamber face side" on page61
Clean the chamber, trays and the rack. See
"Cleaning the chamber and the chamber
accessories" on page62
Cleaning the chamber filters. See "Cleaning the
chamber filters" on page63
Cleaning the external surfaces of the sterilizer.
See "Cleaning the external surfaces of the
sterilizer" on page63
2
Replace the door gasket. See "Replacing the door
gasket" on page64
Replace the HEPAfilter. See "Replacing the HEPA
filter" on page66
: even if the maximum cycle number is not reached, it is recommended to
replace the consumable parts every year, or if they appear worn or
damaged, or if the filters are clogged or discolored.
EXPIRED MAINTENANCE
The sterilizer monitors the wear of consumables by counting the
number of cycles executed since the last replacement.
When the number of cycles is close to the maximum, a pre-alert
about the concerned consumable is displayed. Please check that
you have the requested spare part available, buy one if not. When
the maximum number of cycles has been met, a message to replace
the consumable will be displayed.
1 Tapto see an animated replacement procedure.
2 When you have replaced the consumable tapto confirm: the
executed cycle counter is reset.
REPLACE THE CONSUMABLE BEFORE THE MAINTENANCE DUE
DATE
If you replace the consumables before the request of replacement
appears, you should manually reset the counters through the
following procedure.
1 On the homepage, tap>
2 Select the consumable you want to replace: a message appears
showing the current worked hours of the part.
3 Tapto see an animated replacement procedure.
4 When you have replaced the consumable tapto confirm: the
2 Empty the sterilizer chamber by removing the trays and the rack.
3 Remove the filters at the bottom of the chamber (bottom/center) by unscrewing
them.
4 Rinse the filters with tap water.
5 Insert the filters in their original position, screwing them into place.
Note: tapto see the animated cleaning procedure.
CLEANING THE EXTERNAL SURFACES OF THE STERILIZER
Proceed as follows:
1 Clean all external sterilizer covers with a slightly damp cloth moistened with
water. For better cleaning results, clean with W&H MC-1000 cleaning solution.
Notice: never use any other disinfectant, detergent or abrasive product, as they
might result aggressive for the external covers and damage them.
If you left accidentally the tanks full for more than seven days or if you plan not to use the sterilizer for at least seven days, you have to drain the
tanks.
1 Open the sterilizer service door.
2 Put a container below the sterilizer (1.84 gal (7 l) minimum) and place the end of
the drain tube in it.
3 To drain the used water, insert the drain tube connector in the grey connection.
4 To drain the clean water, insert the drain tube connector in the blue connection.
5 When the water has been completely drained, press the release button to remove
n Separate the various components according to the materials they are made of
n Drop the sterilizer with a company that specializes on the recycling of related products
n Do not abandon the sterilizer in unsecured places
n Always refer to current/applicable laws and rules in the country of use
The same instructions apply to disposal of all used consumable parts.
MATERIALS
The sterilizer is mainly built from fiber-reinforced polymers, metals and electric / electronic components.
Wait before opening the chamber door. Allow the sterilization chamber to cool down.Repeat the cycle.
Switch the sterilizer OFF and ON.
If the problem persists, contact technical service.
Clean the chamber and the chamber furniture from residuals of detergents, disinfectants and other
chemicals.
Replace the clean water if it is suspected to be contaminated with chemicals.
Ensure all the load is clean rinsed and free from any chemicals before sterilizing.
13x to 16x
Check water level in the clean water tank. Reset the safety thermostat..Repeat the cycle.
Switch the sterilizer OFF and ON.
If the problem persists, contact technical service.
Clean the door gasket and the chamber face side.
Check if the load placed in the sterilization chamber complies with the MAXIMUM WEIGHT LIMITS.
Clean the chamber and the chamber furniture from residuals of detergents, disinfectants and other
chemicals.
Replace the clean water if it is suspected to be contaminated with chemicals.
Ensure all the load is clean rinsed and free from any chemicals before sterilizing.
18x
2xx
Chamber filters clogged. Remove and clean the chamber filters. See error "13x to 16x" above.Repeat the cycle.
HEPA filter clogged. Check and replace if necessary.
If the problem persists, contact technical service.
Switch the sterilizer OFF and ON.Repeat the cycle.
Wait for the chamber to cool down. Reset the safety thermostat (see "Extraordinary maintenance" on
If the problem persists, contact technical service.
page67).
3xx
Check the door gasket. Clean or replace it if necessary.Repeat the cycle.
Clean the chamber face side.
If the problem persists, contact technical service.
Check the load does not exceed the MAXIMUM WEIGHT LIMITS.
If during a sterilization cycle an error occurs do the following:
1
Wait until the OPEN button appears.
2 At the end of the reset phase, you may open the door. A pop
appears requiring a confirmation.
3 Tapto open the door.
CAUTION! Do not switch off the sterilizer during the reset
phase: it takes some minutes to reset the system and
reach safe conditions in the sterilizer chamber.
Notice: water could be present in the chamber when opening the
door: prevent spilling (e.g., place a towel below the chamber door).
VIEW AND SAVE THE ERROR LOG
1 On the homepage, tap>>: a list of the last errors
appears.
2 Tapto save the list in the USB pen drive.
ERROR PAGE
During the sterilization cycle, the sterilizer is continuously monitored
by a control system. If an anomaly is detected, the cycle is aborted
automatically, and the sterilizer starts a reset phase.
The sterilizer is fitted with a safety thermostat to prevent it from overheating. If the safety thermostat operates because of too high temperatures,
the error 240 or a timeout error is displayed. The thermostat must be reset manually. Proceed as follows:
1 Switch the sterilizer OFF and remove the mains cable.
2 Wait for the sterilizer to cool down.
3 Open the sterilizer door.
4 Unscrew the cap and push on the reset button of the thermostat switch; a click
sound indicates that the thermostat switch has been reset.
5 Screw the cap.
6 Connect the mains cable and switch the sterilizer ON.
Note: if the thermostat operates repeatedly, contact technical service.
7 Wait for the sterilizer to finish the error reset phase and follow the instructions on
Note: if your problem is not resolved, call your authorized service provider.
Notice: before sending the sterilizer for technical service, remove the mains cable, empty both water tanks and use the original or appropriate packaging.
ProblemPossible causeSolutions
The sterilizer remains switched
OFF.
Water is leaking at the front of the
sterilizer.
The cycle commences but there
is no pressure/temperature rise.
At the end of the cycle, there is
residual water in the chamber.
The mains switch or network circuit breaker is OFF.Activate the mains switch or network circuit breaker (ON).
No voltage at the socket.Check the electric circuit.
The power cord is not connected properly.Check and connect the power cord properly.
Leaks through the chamber door gasket.Clean or replace the door gasket.
Clean the chamber face side.
Internal leak.Contact technical service.
The safety thermostat switch is open.Reset the safety thermostat switch. See "Extraordinary maintenance" on page67
Electric - electronic fault.Contact technical service.
Sterilizer not properly leveled.Properly level the surface the sterilizer is placed on.
Overloaded chamber.Comply with the maximum load weight limits for each type of load. Always use the
chamber rack for trays and cassettes. See "Load maintenance and preparation" on
page45
Chamber filters clogged.Remove and clean the chamber filters.
One or more chamber filter caps not well-positioned. Mount the chamber filter caps properly (see "User maintenance" on page59).
Load incorrectly placed.See "Load maintenance and preparation" on page45
Water fill system not connected.Connect the water fill system to the sterilizer. See "Water quality" on page95
When the water fill system attempted to fill the
tank, water was temporarily unavailable.
Since 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.
Faulty MIN water level sensor in the clean water
Call service.
tank.
The chamber door has not been opened after the
Press the standby button to exit.
previous cycle had finished and the standby mode
delay has expired.
The HEPA filter is clogged.See “"Emergency door opening" on the next page”.
Contact technical service if the problem persists.
Remove the HEPA filter to get the pressure released. Replace the filter.
Note: The HEPA filters need to be replaced every 1200 cycles.
The chamber temperature dropped below the
Wait for cycle completion. If the problem occurs frequently, contact technical service.
minimum threshold and the software performed a
successful recovery.
The USB pen drive is not connected or not properly
connected to the sterilizer.
A component shall be replaced for the programmed
maintenance of the sterilizer.
Check presence and connection of the USB pen drive.
If the problem persist, call service.
Call service to order the requested component (door gasket, HEPA filter…).
WARNING! High pressure. Risk of explosion, jet of hot steam, sudden opening of the door. Carry out the following procedure only if
necessary and only when NO RESIDUAL PRESSURE IS IN THE CHAMBER. Any attempt to open the door while the unit is still hot or
under pressure could expose the operator and the surrounding personnel to serious risk.
CAUTION! High temperature. Risk of burns. Carry out the following procedure only when the sterilizer has completely cooled down. The
sterilizer should be unplugged from the mains power supply for at least 3 hours before executing this procedure.
Notice: carry out this procedure only as indicated and with the sterilizer in the indicated conditions. Any attempt to open the door in a different
way can seriously damage the sterilizer.
OPENING TOOL
The door locking system is electrically activated. In case the door remains locked due to a black-out or an electric fault, an auxiliary unlocking
procedure is available.
OPEN THE DOOR IN EMERGENCY
1 Unplug the sterilizer and wait at least three hours.
Sterilization programs83
Sterilization program phases89
Technical data92
Recommendations for validation93
Diagrams94
Water quality95
Accessories, spare parts, consumables96
Authorized W&H service partners98
Sterilization programs
WARNINGS
WARNING! For your safety and for the safety of your patients:
Never process objects different from those specified in the cycle program table and never exceed the maximum load weight limits
specified in it. Such actions could result in non-sterile conditions at the end of the cycle, could expose people to the hazard of
cross-infections, are considered as an improper use of the sterilizer for which the manufacturer cannot be hold responsible.
An improper use of these profiles will result in wet load at the end of the cycle, exposing the load to a contamination due to
improper storage.
The display reminds the maximum permitted load before starting a cycle. All indications of sterile load or successful completion of
the cycle that are given on the display at the end of the cycle are not valid if the type and quantity of the load are not complied
with.
: mixture of instruments and/or packages within each program may vary. Not to exceed maximum load weight.
Textiles, up to 4.4 lbs (2 kg), or instruments and dental handpieces requiring low
temperature, up to 5 lbs (2.3 kg).
Pouches, wrapped, unwrapped and naked.
Instruments and dental handpieces, up to 18 lbs (8.1 kg). Unwrapped, naked.
The instruments sterilized with this cycle cannot be stored: they must be used
WARNING! The custom programs are not FDA cleared and it is the responsibility of the user to validate these programs.
The sterilizer provides the following custom programs. These programs are disabled by default.
ProgramSterilization Temperature
Custom A
Custom B
Custom C
1
: these are profiles defined by ANSI/AAMI ST55 as dynamic-air-removal (steam-flush pressure-pulse). These profiles can be enabled by the user. Some of the
1
1
1
250 °F (121 °C)15–60 minutes30–60 minutes
270 °F (132 °C )4–30 minutes3–60 minutes
273 °F (134 °C)3–30 minutes3–60 minutes
Sterilization Time
(settable)
parameters can be adjusted by the user according to his needs (Plateau/Sterilization phase, dry time, etc.). These cycles are not FDA cleared.
STERILIZATION PROGRAM OPTIONS (200–240 V AC VERSION)
WARNING! The sterility of items processed unwrapped is compromised on exposure to non-sterile environments. Ensure that items
are dry when removed from the sterilizer. If the default drying time is not adequate for the load to be sterilized, additional drying
time can be added (see "Sterilization cycle management" on page49). To load properly the sterilizer see "Prepare the sterilizer" on
page48.
Unwrapped
Sterilization temperature
Sterilization program type according ANSI/AAMI ST55
: The total cycle time may vary depending on the type of load (solid or porous), the load weight, and other factors.
Pouched, wrapped instruments and
dental handpieces
Unwrapped instruments and dental
handpieces
Wrapped cassettes
Unwrapped cassettes
Textiles
NoYesYesYesYesYes
YesYesYesYesYesYes
NoYesYesYesYesYes
YesYesYesYesYesYes
NoNoNoNo
instruments:
18 lb (8.1 kg)
Pouches Medium
Load
instruments:
3 lb (1.4 kg)
Pouches Large
Load
instruments:
6 lb (2.7 kg)
Pouches & Wrapped
instruments:
included cassettes
STERILIZATION PROGRAM OPTIONS (100–125 V AC VERSION)
WARNING! The sterility of items processed unwrapped is compromised on exposure to non-sterile environments. Ensure that items
are dry when removed from the sterilizer. If the default drying time is not adequate for the load to be sterilized, additional drying
time can be added (see "Sterilization cycle management" on page49). To load properly the sterilizer see "Prepare the sterilizer" on
page48.
Sterilization temperature
Sterilization program type according ANSI/AAMI ST55
Following is the description of the sterilization phases.
CodePhaseDescription
PHEPre-heating
HEA1
HEA2
HEA3Pressure rise
STLZSterilization
DRYExhausting
LEV
phase
Heating
phase (steam
pressure
pulses)
phase
drying phase
Levelling
phase
Pre-heating of the sterilizer steam generator and chamber. This phase is not considered a part of the cycle.
Initial heating phase to remove the air from the sterilization chamber. Air is removed using pressure pulses followed by discharge phases. The
iteration of these phases reduce the percentage of air inside the chamber and determinates the correct sterilization conditions.
Heating phase to achieve the sterilization conditions (pressure and temperature) for the selected cycle.
Sterilization condition (pressure and temperature) maintained for the time specified for the selected cycle. During this phase the unit controls
the theoretical temperature (pressure converted in temperature, because of physical behaviour of water) and the steam temperature inside the
chamber. The value must be between the sterilization temperature band, and the difference between them must be lower than 3.6 °F (2 °C). If
the temperature drops below the sterilization temperature band a restart process procedure is automatically executed by the sterilizer
(according to ST55). The sterilizer controls the sterilization condition through steam generation. The steam generation is controlled by a PID, that
modulates the electrical power using as feedback the instant average between theoretical and internal temperature.
The objective of this phase is to dry the load placed in the sterilizer chamber. The drying phase is divided in two step:
n The first step is the depressurization phase, when most of the steam is removed from the chamber. The second step is the drying of the
load.
n Duration of the DRY phase depends on the selected profile.
Pressure inside the sterilization chamber is leveled to the atmospheric pressure.
All programs with the sterilization phase at 270 °F (132 °C) feature the same basic pressure profile 270 °F (132 °C). The duration of the drying
phase differ between the various programs.
200–240 V ac (±10%), 50/60 Hz, 10 A, single-phase
100–125 V ac (±10%), 50/60 Hz, 12 A, single-phase
II
Suitable circuit breaker and a Ground Fault Circuit Interrupter
(GFCI). All protection devices must be certified according to
applicable standard. A grounded connection is essential.
2 USB ports - 1 LAN port (optional)
Fully micro-processor controlled, process evaluation system
according to EN13060.
Programmable standby mode.
3000 kJ/h
From +41 °F to +104 °F (from +5 °C to +40 °C)
Max. RH 80% up to 88 °F (31 °C), linearly decreasing to 50% at 104
°F (40 °C)
Storage temperature / rel.
humidity
Max altitude
Min. atmospheric
pressure
Overall dimensions
Min. space required
(feet in forward position)
Size of the door
movement
Weight empty
Max. weight (fully loaded)
Weight per support area
Environment pollution
Usage environment
From -4 °F to +140 °F (from -20 °C to +60 °C) / 0–90 % (with empty
tanks)
FEED WATER SPECIFICATIONS (ANSI/AAMI AND AAMI TIR34)
The table below lists the specifications for the water used for steam
sterilization according ANSI/AAMI ST55 and AAMI TIR34. Following is
the Table 1 AAMI TIR34.
Utility water
Hardness
Conductivity
Total Dissolved
Solids
4
pH
Chlorides
Bacteria
Endotoxin
Units
µS/cm< 500< 10
cfu/mLn/a, <10
EU/mLn/a, <20
flushing/ washing/
rinsing
mg/L< 150
ppm< 350< 6.5
mg/L< 250< 1
Note 1: this is the quality of water that might come from the tap but might
need some form of treatment to achieve these specifications.
Note 2: if this is the final rinse prior to sterilization of a critical device.
Note 3: if hardness is greater than 150 mg/L, a water softener is
recommended unless used for washing and the cleaning chemistry is
1
3
6 – 95 – 7
5
5
Critical water
finale rinse
/steam
< 1
< 10
< 10
2
capable of handling higher levels of hardness.
Note 4: for boiler-treated steam, most boilers are treated to maintain a pH of
7.5 or 8.5. Any treatment of water that goes into boilers should be in
accordance with the sterilizer and boiler manufacturers' written IFU.
Note 5: after high-level disinfection.
Notice:
The use of water with a conductivity greater than 10μS/cm (6.5
ppm) may affect the sterilization process and damage the sterilizer.
The use of water with a conductivity greater than 50μS/cm, or not
complying with the specifications in the table above, may strongly
affect the sterilization process and seriously damage the sterilizer.
The manufacturer’s warranty is void if the sterilizer was used with
water containing contaminant or chemical levels exceeding those
listed in the table above.