MELAG Vacuklav 40 B+ Evolution User manual

User Manual
Vacuklav® 40 B+ Evolution
Vacuklav® 44 B+ Evolution
Steam sterilizer
from software version 3.240
EN
Dear customer,
We thank you for your confidence demonstrated by the purchase of this MELAG product. As an owner-run and operated
family concern founded in 1951, we have a long history of successful specialization in hygiene products for practice-
based use. Our focus on innovation, quality and the highest standards of operational reliability has established MELAG
as the world’s leading manufacturer in the instrument reprocessing and hygiene field.
You, our customer are justified in your demand for the best products, quality and reliability. Providing “competence in
hygiene” and “Quality – made in Germany”, we guarantee that these demands will be met. Our certified quality man-
agement system is subject to close monitoring: one instrument to this end is our annual multi-day audit conducted in ac-
cordance with ENISO13485. This guarantees that all MELAG products are manufactured and tested in accordance with
strict quality criteria.
The MELAG management and team.

Contents
Contents
1 General guidelines ...............................................................................................................................................................5
Symbols used ......................................................................................................................................................................5
Formatting rules...................................................................................................................................................................5
MELAconnect App ...............................................................................................................................................................5
Disposal ...............................................................................................................................................................................5
2 Safety.....................................................................................................................................................................................7
3 Performance specifications ................................................................................................................................................9
Intended use ........................................................................................................................................................................9
Sterilization procedure .........................................................................................................................................................9
Type of the feed water supply..............................................................................................................................................9
Safety equipment.................................................................................................................................................................9
Performance characteristics of sterilization programs (type B) .........................................................................................10
Program sequences...........................................................................................................................................................11
4 Description of the device...................................................................................................................................................12
Scope of delivery ...............................................................................................................................................................12
Views of the device............................................................................................................................................................13
Service hatch .....................................................................................................................................................................14
Symbols on the device.......................................................................................................................................................14
Load mounts ......................................................................................................................................................................15
Energy-saving key .............................................................................................................................................................16
Colour touch display ..........................................................................................................................................................16
LED status bar ...................................................................................................................................................................18
5 First steps ...........................................................................................................................................................................19
Setup and installation ........................................................................................................................................................19
Feed water supply .............................................................................................................................................................19
Supply with cooling water ..................................................................................................................................................19
Switching on the steam sterilizer .......................................................................................................................................20
Opening and closing the door............................................................................................................................................20
6 Loading the steam sterilizer..............................................................................................................................................23
Preparing the load .............................................................................................................................................................23
Loading the steam sterilizer...............................................................................................................................................24
7 Sterilization .........................................................................................................................................................................26
Important information for routine operation........................................................................................................................26
Selecting the program........................................................................................................................................................27
Additional program options ................................................................................................................................................28
Starting the program ..........................................................................................................................................................29
Program run.......................................................................................................................................................................30
Manual program abort .......................................................................................................................................................31
Program end ......................................................................................................................................................................33
Removing the sterile material ............................................................................................................................................34
Storing sterile material .......................................................................................................................................................35
8 Logging ...............................................................................................................................................................................36
Batch documentation .........................................................................................................................................................36

Contents
Output media .....................................................................................................................................................................36
Outputting text logs automatically after program end (immediate output) .........................................................................38
Subsequent log output.......................................................................................................................................................39
Finding logs .......................................................................................................................................................................41
9 Function tests.....................................................................................................................................................................43
Vacuum test.......................................................................................................................................................................43
Bowie&Dick test...............................................................................................................................................................44
10 Settings .............................................................................................................................................................................45
Logging ..............................................................................................................................................................................45
User administration............................................................................................................................................................51
Formatting the CF card......................................................................................................................................................54
Additional drying ................................................................................................................................................................55
Intelligent drying.................................................................................................................................................................56
Date and time ....................................................................................................................................................................56
Brightness..........................................................................................................................................................................57
Volume...............................................................................................................................................................................57
View ...................................................................................................................................................................................58
MELAconnect ....................................................................................................................................................................59
Key tone.............................................................................................................................................................................60
Screensaver.......................................................................................................................................................................60
Log printer MELAprint 42/44..............................................................................................................................................61
Label printer MELAprint 60 ................................................................................................................................................61
Sensitivity...........................................................................................................................................................................62
Energy-saving mode..........................................................................................................................................................62
11 Maintenance......................................................................................................................................................................64
Servicing intervals..............................................................................................................................................................64
Cleaning.............................................................................................................................................................................64
Avoiding staining................................................................................................................................................................65
Checking and oiling the door lock......................................................................................................................................65
Maintenance ......................................................................................................................................................................66
12 Pause times ......................................................................................................................................................................67
Frequency of sterilization...................................................................................................................................................67
Duration of the operating pause ........................................................................................................................................67
Decommissioning ..............................................................................................................................................................67
Emptying the double jacket................................................................................................................................................68
Transport ...........................................................................................................................................................................68
Recommissioning after relocation......................................................................................................................................68
13 Malfunctions .....................................................................................................................................................................69
Displaying messages in MELAconnect..............................................................................................................................69
Messages ..........................................................................................................................................................................70
Warning and error messages ............................................................................................................................................70
14 Technical data ..................................................................................................................................................................81
15 Accessories and spare parts ..........................................................................................................................................82
Glossary .................................................................................................................................................................................84

1 General guidelines
5
1 General guidelines
Please read this user manual carefully before commissioning the device. The manual includes important
safety instructions. Make sure that you always have access to digital or printed version of the user manual.
Should the manual no longer be legible, is damaged or has been lost, you can download a new copy from
MELAG download centre at www.melag.com.
Symbols used
Symbol Explanation
Indicates a dangerous situation, which if not avoided, could entail slight to life-
threatening injuries.
Draws your attention to a situation, which if not avoided, could result in damage to the
instruments, the practice fittings or the device.
Draws your attention to important information.
Formatting rules
Example Explanation
see Chapter 2 Reference to another text section within this document.
Universal-
Program
Words or phrases appearing on the display of the device are marked as display text.
MELAconnect App
You can use the MELAconnect app from any location in your practice, to access the device status and pro-
gram progress of the MELAG devices incorporated in your practice network.
MELAconnect provides the following functions:
▪ Accessing the device status and program progress
▪ Accessing the user manuals and video tutorials for using the device
▪ Locating malfunctions and accessing solutions and assistance immediately
▪ Performing quick paperless documentation of routine checks of MELAG sealing devices
▪ Contacting the service technician (contact data must be entered manually)
In order to connect the MELAconnect app with your MELAG device, see the MELAconnect [}page59]
section.
Disposal
MELAG devices are synonymous with high quality and a long life-span. When you eventually need to de-
commission your MELAG device, the required disposal of the device can take place with MELAG in Berlin.
Dispose of accessories and consumption media which you no longer require in the appropriate manner.
Comply with all relevant disposal specification in terms of possibly contaminated waste.
The packaging protects the device against transport damage. The packaging materials have been selec-
ted for their environmentally-friendly disposability and can be recycled. Returning the packaging to the ma-
terial flow reduces the amount of waste and saves raw materials.
Dispose of spare parts that are no longer used, e.g. seals, properly.
MELAG draws the operator’s attention to the fact that they are responsible for deleting personal data on
the device to be disposed of.

1 General guidelines
6
MELAG draws the operator’s attention to the fact that they may be legally obliged (e.g. in Germany ac-
cording to ElektroG) to remove used batteries and accumulators non-destructively before handing over the
device, provided they are not enclosed in the device.

2 Safety
7
2 Safety
When operating the device, comply with the following safety instructions as well as those
contained in subsequent chapters. Use the device only for the purpose specified in these
instructions. Failure to comply with the safety instructions can result in injury and/or damage to
the device.
Qualified personnel
nAs with the preceding instrument reprocessing, only competent personnel should undertake steriliza-
tion using this steam sterilizer.
nThe operator must ensure that the users have been trained in the operation and safe handling of the
device.
nThe operator must ensure that the users are regularly trained in the operation and safe handling of the
device.
Setup, installation and commissioning
nCheck the device after unpacking for any damage suffered during transport.
nThe device should only be setup, installed and commissioned by MELAG authorised persons.
nThe connections for electrical provision and water supply and discharge must be setup by trained per-
sonnel.
nUsing the optional electronic leak detector (water stop) minimises the risk of water damage.
nThe device is not suitable for operation in explosive atmospheres.
nInstall and operate the device in a frost-free environment.
nThe device is conceived for use outside the patient area. The device should be located a minimum of
1.5m radius away from the treatment area.
nThe documentation media (computer, CF card reader etc.) must be placed in such a way that they
cannot come into contact with liquids.
nObserve all the information contained in the technical manual during commissioning.
Power cable and power plug
nOnly the power cable included in the scope of delivery may be connected to the device.
nThe power cable may not be replaced by a cable determined to be insufficient.
nComply with all legal requirements and locally-specified connection conditions.
nNever operate the device if the plug or power cable are damaged.
nThe power cable or plug should only be replaced by authorised technicians.
nNever damage or alter the power plug or cable.
nNever unplug by pulling on the power cable. Always take a grip on the plug.
nEnsure that the power cable does not become jammed in.
nNever lead the cable along a source of heat.
nNever fix the power cable with sharp objects.
Spring safety valve
nThe free movement of the valve rod must be guaranteed. For example, the spring safety valve must
not be taped or blocked. Install the device in such a way that the proper functioning of the spring safe-
ty valve is guaranteed.
Reprocessing and sterilization
nFollow the manufacturer’s instructions of your textile articles and instruments regarding their repro-
cessing and sterilization.

2 Safety
8
nComply with the relevant standards and directives applicable to the reprocessing and sterilization of
textiles and instruments (in Germany e.g. from the RKI and DGSV).
nOnly ever use packaging material and systems which have been cleared by their manufacturer for
steam sterilization.
Program abort
nPlease observe that depending on the time of the program abort, opening the door following a pro-
gram abort can lead to hot steam leaving the sterilization chamber.
nDepending on the time of the program abort, it is possible that the load is unsterile. Observe the clear
instructions shown on the display of the device. Sterilize the affected load after re-wrapping again.
Removing the sterile material
nNever use force to open the door.
nUse a tray lifter to remove the tray. Never touch the sterilized equipment, the chamber, the mount or
the inside of the door with bare hands. The components are hot.
nCheck the packaging on the sterile material for damage when removing it from the steam sterilizer.
Should the packaging be damaged, re-pack the load and re-sterilize it.
Transport and storage
nStore and transport the device in a frost-free environment.
nThe device should always be carried by two people.
nUse suitable carrying straps to carry the device.
Maintenance
nMaintenance should only be performed by authorised technicians.
nMaintain the specified servicing intervals.
nOnly original MELAG spare parts may be used.
Repair
nNever open the device housing. Incorrect opening and repair can compromise electrical safety and
pose a danger to the user. The device may only be opened by an authorised technician who must be
a qualified electrician.
Malfunctions
nShould the device issue the same malfunction message repeatedly, turn off the device and if neces-
sary, inform your stockist.
nThe device may only be serviced by authorised technicians.
Notification requirement in the event of serious accidents in the European Economic Area
nPlease note that all serious accidents which occur in connection with the medical product (e.g. death
or serious deterioration in the state of health of a patient) which were presumably caused by the pro-
duct, must be reported to the manufacturer (MELAG) and the relevant authority of the member state,
in which the user and/or patient resides.

3 Performance specifications
9
3 Performance specifications
Intended use
This steam sterilizer is designed for application in a medical context, e.g. general practitioners and dental
practices. According to EN 13060, this steam sterilizer is considered as a steam sterilizer with type B cy-
cles. As a universal steam sterilizer, it is suited to highly-demanding sterilization tasks. It can be used for a
range of tasks such as the sterilization of large quantities of instruments with narrow lumen and transmis-
sion instruments - both wrapped or unwrapped - and of textiles.
WARNING
Any attempt to sterilize liquids can result in a delay in boiling. This can result in burns
and damage to the device.
nNever use this device to sterilize fluids. It is not licensed for the sterilization of fluids.
Sterilization procedure
The steam sterilizer sterilizes on the basis of the fractionated vacuum procedure. This guarantees the
complete and effective wetting/penetration of the load with saturated steam.
This procedure enables the sterilization of loads common to a doctor's practice.
The steam sterilizer uses the double jacket technology to generate the sterilization steam, i.e. the steam
sterilizer is fitted with a separate steam generator combined with a double-walled sterilization chamber. Af-
ter heating, steam is held constantly available in the double jacket. This gives the walls of the sterilization
chamber a defined temperature and protects the sterilization chamber from overheating. This especially ef-
fective procedure supports the quick evacuation of the air from the sterilization chamber, the sterilization
packaging and instrument cavities. This permits the sterilization of large quantities of instruments or tex-
tiles directly one after each other, thereby achieving excellent drying results.
Type of the feed water supply
The steam sterilizer works with a one-way feed water system. This means that it uses fresh feed water
(demineralized or distilled water) for every sterilization procedure. The quality of the feed water is subject
to permanent monitoring via integrated conductivity measurement. If combined with careful preparation of
the instruments, this serves largely to prevent stain accretion on the instruments and soiling of the steam
sterilizer.
Safety equipment
Internal process monitoring
A process evaluation system is integrated in the electronics of the steam sterilizer. It compares the process
parameters (such as temperature, time and pressure) during a program run. It monitors the parameters in
terms of their threshold values during control and regulation and guarantees safe and successful
sterilization. A monitoring system checks the device components of the steam sterilizer for their
functionality and interplay. If one or more parameters exceeds pre-determined threshold values, the steam
sterilizer issues warning or fault messages and if necessary, aborts the program. In the case of a program
abort, follow the instructions on the display.
The steam sterilizer uses an electronic parameter control. This enables the steam sterilizer to optimise the
total operating time of a program in dependence on the load.
Door mechanism
The steam sterilizer constantly checks pressure and temperature in the sterilization chamber and prevents
the door from being opened when over-pressure has built up in the chamber. The motor-driven automatic
door locking mechanism opens the door slowly by turning the locking spindle. This also holds the door

3 Performance specifications
10
whilst it opens. Pressure compensation will have been performed by the time that the door is completely
open, even following pressure differences.
Quantity and quality of the feed water
The quantity and quality of the feed water is automatically checked before every program start.
Performance characteristics of sterilization programs (type B)
The results in this table show which inspections were performed on the steam sterilizer. The marked field
shows compliance with all the applicable sections of the standard EN 13060.
Type tests Universal-
Program
Quick-
Program B
Quick-
Program S
Gentle-
Program
Prion-
Program
Program type in
accordance with
EN 13060
Type B Type B Type S Type B Type B
Dynamic pressure test of
the sterilization chamber
XXXXX
Air leakage X X X X X
Empty chamber test X X X X X
Solid load X X X X X
Porous partial load X -- -- X X
Porous full load X -- -- X X
Simple hollow body X X X X X
Product with narrow
lumen
X X -- X X
Single wrapping X X -- X X
Multiple wrapping X -- -- X X
Drying solid load X X X X X
Drying, porous load X -- -- X X
Sterilization temperature 134 °C 134 °C 134 °C 121 °C 134 °C
Sterilization pressure 2.1 bar 2.1 bar 2.1 bar 1.1 bar 2.1 bar
Sterilization time 5:30 min 5:30 min 3:30 min 20:30 min 20:30 min
X = Complies with all applicable sections of the standard EN 13060

3 Performance specifications
11
Program sequences
A program runs in three main phases: the air removal and heating up phase, the sterilization phase and
the drying phase. After program start, you can follow the program run on the display. It shows the chamber
temperature and pressure as well as the time until the end of sterilization / drying.
Program phases of a standard sterilization program
Program phase Description
1. Air removal and heating
up phase
Air removal
The air removal phase comprises of the conditioning and the fractionating
phase. During conditioning, steam is repeatedly injected into and removed
from the sterilization chamber. This generates over-pressure and the
residual air is removed. Then, during fractionation, the mixture of air and
steam is evacuated from the sterilization chamber and steam is injected.
This procedure is also called the fractionated vacuum procedure.
Heating
The continued steam injection into the sterilization chamber leads to an
increase in pressure and temperature which continues until the program-
specific sterilization parameters have been reached.
2. Sterilization phase Sterilizing
If the pressure and temperature correspond to the program-dependent
nominal values, the sterilization phase begins. The corresponding process
parameters (pressure and temperature) are held at sterilization level. The
sterilization time (holding time) is indicated on the display.
3. Drying phase Pressure release
The sterilization phase is followed by pressure release from the sterilization
chamber.
Drying
The sterile material is dried using a vacuum (vacuum drying).
Ventilation
Upon program end, the sterilization chamber is filled with sterile air via the air
filter and adjusted to the ambient pressure. A corresponding display
message Ventilation is shown.
Program phases of the vacuum test
Program phase Description
1. Evacuation phase The sterilization chamber is evacuated until the pressure for the vacuum test
has been reached.
2. Equilibration time An equilibration time of 5 min will follow.
3. Measurement time The measuring time is 10 min. The pressure increase within the sterilization
chamber is measured during the measurement time. The evacuation
pressure and the equilibration time or measurement time are shown on the
display.
4. Ventilation The chamber is ventilated after the end of the measuring time.
5. Test end The display shows the test result, the batch number, the total number of
batches and the leakage rate.

4 Description of the device
12
4 Description of the device
Scope of delivery
Please check the scope of delivery before setting up and connecting the device.
Standard scope of delivery
▪ Vacuklav 40 B+ or Vacuklav 44 B+
▪ User manual
▪ User Manual Accessories for small steam sterilizers
▪ Manufacturer's inspection report and declaration of conformity
▪ Warranty certificate
▪ Technical manual
▪ Record of installation and setup
▪ Tray lifter
▪ Power cable
▪ 4x cover caps for niches for mounts in the side wall
▪ Feed hose, 2.5 m
▪ Outlet hose, 2 m
▪ Allen key with which to open the door in an emergency
▪ Guide sleeve
▪ Feed water connection
▪ Double chamber siphon
▪ Oil for door lock bushing
▪ Test gauge TR16 for door lock nut

4 Description of the device
13
Views of the device
7
8
14 13 11 10 9
6
3
2
1
5
4
12
Fig.1: View from front
1 CF card slot
2 Colour touch display
3 LED status bar
4 Energy-saving key
5 Door (swings open to the left)
6 Opening for door opening in an
emergency*)
7 Opening for emergency activation
of the vacuum pump
8 Power switch (covered,
accessible from the side)
9 Ethernet connection
10 Motor protection switch reset
button
11 Overheat control reset button
12 Allen key 5mm to open the door
in an emergency
13 Front device foot (adjustable)
14 Manometer for pressure display
on the double-jacket steam
generator
*) behind cover
23
24
25
22
18
16 17
21
15
20
19
27 26
Fig.2: View from rear
15 Ethernet connection
16 Ethernet connection, optional
(upgradeable)
17 Fan
18 Safety combination in accordance
with EN 1717
19 Cavitation protection nozzle and
valve
20 Spring safety valve chamber
21 Sterile filter
22 Spring safety valve double jacket
23 Cooling water inflow valve (3/4”
external thread)
24 Feed water inflow for external
water storage container or water
treatment unit (e.g. MELAdem)
25 Cooling water outflow valve (3/4”
external thread)
26 Optional connection of a Flex
display
27 Power cable connection

4 Description of the device
14
35 34 3233
29
30
28
31
Fig.3: View from front, door open
28 Mount for the water treatment unit
MELAdem
29 Spring clip for fixing the mount
“Plus”
30 Door spindle
31 Sterilization chamber
32 Chamber sealing face
33 Door seal
34 Round blank
35 Bushing
Service hatch
The service hatch is opened by pressing on the recess. The service hatch is closed again by closing and
pressing on the recess.
Fig.4: Opening and closing the service hatch
Symbols on the device
Manufacturer of the medical device
Date of manufacture of the medical device
MD
Identifies a medical device
SN
Medical device serial number from the manufacturer
REF
Article number of the medical device
Information about the chamber volume
Operating temperature of the device

4 Description of the device
15
Operating pressure of the device
Electrical connection of the device: AC current
Read this user manual carefully before commissioning the device.
In affixing this CE mark, the manufacturer declares that this medical product fulfils the
basic requirements of the Medical Device Directive. The four-digit number confirms that
this is monitored by an approved certification agency.
In affixing this CE mark, the manufacturer declares that this product fulfils the basic
requirements of the Pressure Equipment Directive. The four-digit number confirms that
this is monitored by an approved certification agency.
The device may not be disposed as domestic waste. The vendor is responsible for
appropriate disposal of the device - it must be delivered to the vendor to be disposed of.
MELAG devices are synonymous for long-term quality. When you eventually need to
decommission your MELAG device, we offer a special disposal service. Simply contact
your stockist.
Symbols on the power switch
Switching on device
Switching off device
Load mounts
Detailed information regarding the various mounts, their combinability with various load holders and their
application can be found in the document "User Manual Accessories for small steam sterilizers".
A spring clip is located on the rear panel of the sterilization chamber to fix the mount. When using a “Plus”
mount, slide the mount into the sterilization chamber to its fullest extent, until the mount snaps into the
spring clip.

4 Description of the device
16
Energy-saving key
Pressing the energy-saving key activates the energy-saving mode and switches off the display. The dou-
ble jacket will not be heated until the next program start. This corresponds to waiting time 2, see also Ener-
gy-saving mode [}page62].
Pressing the energy-saving key again will switch the display back on.
PLEASE NOTE
The energy-saving mode can not be activated during a program run.
State Meaning
Lighted The energy-saving mode can be activated.
Not lighted The energy-saving mode can not be activated.
Colour touch display
The operating panel consists of a colour 5 inch touch display.
Status bar
Menu bar
Main area
Action bar
Symbols in the status bar Meaning
Program/tests Indicates whether a program/test is running
Immediate output Indicates whether immediate output is activated/deactivated
Additional drying Indicates whether additional drying is activated/deactivated
Graphic logs Indicates whether the graphic log recording is activated/deactivated

4 Description of the device
17
Symbols in the status bar Meaning
Energy-saving
mode
Indicates whether the steam sterilizer is currently in energy-saving
mode
Service area Indicates whether a service technician is logged-in to the service area
CF card status Indicates whether a CF card has been inserted and whether a reading
or writing action is in process
Symbol in the menu bar Meaning
Program/tests Lists all sterilization programmes and tests e.g. Vacuum test, Bowie &
Dick test etc.
Log output Here you can display the entire log list or the list of logs from a
restricted time e.g. the day, month etc. You can also delete specific log
types and logs.
Settings Here you can perform various settings such as date and time,
brightness etc. It also enables one-time setting of the standard logging
settings regarding log output.
Info/status window Displays information regarding the software version and device data
e.g. total number of batches, maintenance counter, log settings, log
memory and further technical values.
Service area Only for service technicians.
Help menu Depending on the window selected and the operating situation, gives
information regarding operation or the function of the window currently
selected.
Symbols in the action bar Meaning
Door open Opens the door of the steam sterilizer
Back Navigates to the previous window
Forwards Navigates to the next window
Cancel / return
without saving
Navigates to the superordinate menu, leaves the window without
saving
Zoom (+) Displays further details such as further values after a completed
program
Start time pre-
selection
Navigates to the menu Start time pre-selection
Delete Deletes logs from the internal log memory/deletes the log printer or
label printer stored as standard
Search Searches for label printer(s)/log printer(s)
Skip Navigates to the next window without entry of the required data

4 Description of the device
18
LED status bar
The status bar on the lowest edge of the display indicates different situations with various colours.
Colour of the LED Meaning
Blue Standby, program running, drying has not yet begun
Green Drying running, program completed successfully
Yellow Warning message, software update is running
Red Malfunction message, program not completed successfully

5 First steps
19
5 First steps
Setup and installation
PLEASE NOTE
Comply with the specifications of the technical manual during setup and installation.
This contains all building-side requirements.
Record of installation and setup
The record of installation and setup is to be completed by the responsible stockist and a copy sent to
MELAG as proof of the correct setup, installation and initial commissioning. This is a constituent part of
any guarantee claim.
Feed water supply
Steam sterilization requires the use of distilled or demineralized water, known as feed water. Annex C of
EN13060 specifies the guideline values to be observed.
The steam sterilizer requires c. 3 l feed water for the first filling of the steam generator.
The supply with feed water is effected either via an external water storage container, which must be filled
periodically with water of the corresponding quality, or via a water treatment unit (e.g. MELAdem 40/
MELAdem 47).
Using the external water storage container
The storage container has a capacity of 11.5 l. This volume of feed water is sufficient for up to 25 steriliza-
tion runs. Fill the storage container with feed water. The water level of the storage container may not fall
below the MIN mark during operation. Check the water level in the storage container before every program
start.
NOTICE
Danger of algae development
nTo prevent the development of algae, never expose the storage container to sunlight.
Use of a water treatment unit
A water treatment unit is connected to the drinking water supply. This obviates the need to fill the storage
container. The respective system is selected in accordance with the number of sterilization runs per day
and the type of the load. Every MELAG steam sterilizer can be fitted with a water treatment unit.
PLEASE NOTE
Should you wish to use a water treatment unit from another manufacturer, please consult
MELAG.
Supply with cooling water
The steam sterilzer vacuum pump and the water treatment unit require tap water for operation.
The connection of the steam sterilizer to the water line is comparable with the connection of a washing ma-
chine in a domestic context. Detailed information regarding the connection to the water line is provided in
the technical manual.
The used water is disposed via the on-site effluent system.

5 First steps
20
Switching on the steam sterilizer
See also "Operation".
Video tutorial
The following must be fulfilled or present:
ü The steam sterilizer is connected to the electricity supply.
ü The feed water supply is secure. The steam sterilizer requires approx. 3 litres feed water for the first
filling of the steam generator.
1. Switch on the steam sterilizer at the power switch.
2. When the welcome screen appears, press
CONTINUE. The display switches to the main menu.
The feed water level is checked and pre-heated immediately after activation.
Depending on the device type, it requires a heat-up time of approx. 9 - 13 min after being switched on.
This time is required for the pre-heating of the double-jacket steam generator.
Opening and closing the door
The steam sterilizer is fitted with a motor-driven automatic door locking mechanism with a threaded spin-
dle. Entry on the display is only possible when the door is closed.
Opening the door
The door is opened by pressing on the door symbol on the display.
When opening the door, comply with the following instructions, so as to ensure faultless operation of the
door locking mechanism.
uNever use force to open the door.
uDo not pull vigorously at the door to open it. The door opens automatically.
uDo not place any load on the door, e.g. by leaning on it.