DENTSPLY Multimat2Sinter User manual

Instructions for Use
Sintering furnace
Multimat2Sinter

Page 1
The text and illustrations of these Instructions for Use have been compiled with the utmost diligence. Nevertheless, the presence of
typographic errors or incorrect data cannot be excluded. Please note that DeguDent GmbH cannot accept any liability for such errors.

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Table of contents
1General ............................................................................................................................................................4
1.1 On these Instructions for Use .....................................................................................................................4
1.2 Explanation of symbols...............................................................................................................................4
1.3 Copyright and intellectual property rights ...................................................................................................5
1.4 Limitation of liability.....................................................................................................................................5
1.5Replacement parts......................................................................................................................................6
1.6 Warranty .....................................................................................................................................................6
1.7 Customer Support.......................................................................................................................................6
2Safety...............................................................................................................................................................7
2.1 Responsibilities of the owner/legal operator...............................................................................................7
2.2 Requirements of the staff............................................................................................................................7
2.2.1 Qualifications......................................................................................................................................7
2.3 Intended use...............................................................................................................................................8
2.4 Personal protective equipment ...................................................................................................................8
2.5 Special hazards ..........................................................................................................................................8
2.6 Behaviour in case of danger or accidents.................................................................................................10
2.7 Signage.....................................................................................................................................................10
3Technical specifications..............................................................................................................................11
3.1General .....................................................................................................................................................11
3.2 Electrical connection.................................................................................................................................11
3.3 Operating conditions.................................................................................................................................11
3.4 Rating plate...............................................................................................................................................12
4Design and function.....................................................................................................................................12
4.1 Overview...................................................................................................................................................12
4.2 Description of components .......................................................................................................................13
4.3 Connections..............................................................................................................................................13
4.4 Hazardous.................................................................................................................................................14
4.5 Controls.....................................................................................................................................................14
4.5.1 Electronic controls............................................................................................................................14
4.5.2 Switch and button functions.............................................................................................................15
4.5.3 Display functions..............................................................................................................................15
4.6 Scope of delivery ......................................................................................................................................15
5Transport, packaging and storage .............................................................................................................16
5.1 Safety instructions for transport................................................................................................................16
5.2 Symbols on the packaging........................................................................................................................16
5.3 Delivery inspection....................................................................................................................................17
5.4 Packaging .................................................................................................................................................17
5.5 Transport...................................................................................................................................................18

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6Installing and commissioning.....................................................................................................................18
6.1 Safety........................................................................................................................................................18
6.2 Installation.................................................................................................................................................19
6.2.1 Deploying the high-temperature furnace .........................................................................................19
6.2.2 Connecting the argon supply...........................................................................................................20
6.3 Connecting to mains.................................................................................................................................21
6.4 Commissioning .........................................................................................................................................21
6.4.1 Removing the transport lock............................................................................................................21
6.4.2 Adjust furnace parameters...............................................................................................................22
7Operation.......................................................................................................................................................23
7.1 Safety........................................................................................................................................................23
7.2 Turning on the furnace..............................................................................................................................24
7.3 Sintering Crypton......................................................................................................................................25
7.4 Exchanging the chamber door..................................................................................................................26
7.5 Detecting program type changes (door-changing requirement)...............................................................27
7.6 Sintering Cercon.......................................................................................................................................28
7.7 Programming ............................................................................................................................................29
7.8 Saving a heating program.........................................................................................................................31
7.9 Starting and stopping a heating program..................................................................................................32
7.10 Starting a heating program automatically.................................................................................................33
7.11 Turning off the furnace..............................................................................................................................34
8Additional functions.....................................................................................................................................35
8.1 Speed sintering with Cercon materials.....................................................................................................35
8.2 Speed Sinterprogramme erstellen............................................................................................................36
8.3 Sintering programs with optimized cooling phase ....................................................................................37
9Troubleshooting ...........................................................................................................................................37
9.1 Safety........................................................................................................................................................37
9.2 Troubleshooting messages.......................................................................................................................38
9.3 Table of troubleshooting messages..........................................................................................................39
9.4 System information used in troubleshooting.............................................................................................40
10 Maintenance..................................................................................................................................................41
10.1 Safety........................................................................................................................................................41
10.2 Maintenance schedule..............................................................................................................................41
10.3 Maintenance .............................................................................................................................................41
10.3.1 Clean heating chamber and lifting plate ..........................................................................................41
11 Dismantling and disposal............................................................................................................................42
11.1 Safety........................................................................................................................................................42
11.2 Dismantling ...............................................................................................................................................42
11.3 Disposal ....................................................................................................................................................42
12 EC Declaration of Conformity .....................................................................................................................43

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1 General
1.1 On these Instructions for Use
These Instructions for Use will facilitate allow safe and efficient operation of the unit.
The manual is part of the unit. Keep it in the immediate vicinity of the device, readily accessible for operators.
All operators must carefully read and understand these Instructions for Use prior to handling the unit for the
first time. Full compliance with all safety and operating instructions and instructions in these Instructions for
Use is a fundamental prerequisite for safe operation of the unit.
Follow the local accident prevention regulations and general safety regulations for site where the unit is
deployed.
Illustrations in this manual are meant to promote a basic understanding and may differ from the actual design
of the unit.
In addition to these instructions, follow the instructions for the installed components, found in the Appendix.
Following these Instructions for Use reduces risks, increases the reliability and lengthens the service life of
the unit.
DeguDent GmbH will not be responsible for any damage caused by improper use or operation of the unit
and/or non-compliance with these Instructions for Use.
Note: We are constantly seeking to keep these Instructions for Use up to date. You may download the most
recent version from our website www.degudent.com at any time.
If you have any questions that these Instructions for Used do not answer, please contact:
DeguDent GmbH
Rodenbacher Chaussee 4
63457 Hanau
Germany
1.2 Explanation of symbols
Safety instructions
Safety instructions are identified in this document by symbols. The safety instructions are introduced by
signal words that indicated the extent of the hazard.
Always follow all safety instructions and take all possible precautions in order to avoid accidents, injuries and
damage to property.
DANGER!
Indicates an imminently hazardous situation that will result in death or serious injury if not
avoided.
WARNING!
Indicates a possibly hazardous situation that may result in death or serious injury if not
avoided.
CAUTION!
Indicates a possibly hazardous situation that may result in less serious or minor injury if
not avoided.
CAUTION!
Indicates a possibly hazardous situation that may result in property damage if not avoided.

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Tips and recommendations
NOTE:
Highlights useful tips, recommendations and information for efficient and trouble-free
operation.
Special
safety
instructions
To draw attention to special hazards, safety precautions use the following symbols:
DANGER!
Electric current is a life hazard!
Indicates life-threatening situations caused by electric current. Failure to follow the safety
instructions can result in severe injury or death.
1.3 Copyright and intellectual property rights
© 2012 DeguDent GmbH
All rights pertaining to these Instructions for Use, including but not limited to photocopying and dissemination
as well as translation, are reserved for DeguDent GmbH. Specifically, these Instructions for Use must not,
whether in whole or in part, be reproduced in any form (print, photocopy, microfilm or other technologies)
and/or stored, processed, copied or disseminated using electronic data storage and retrieval systems without
prior written approval by DeguDent GmbH.
All violations will be prosecuted. The guilty party may be liable for damages. All intellectual property,
trademark, service mark and other rights are reserved by DeguDent GmbH.
1.4 Limitation of liability
All statements and information in this manual have been compiled in accordance with applicable standards
and regulations, the current state of the art and our many years of knowledge and experience.
The manufacturer will not be responsible for any injuries or damage caused by:
Non-compliance with the instructions
Improper use
Use of untrained staff
Unauthorized redesigns
Technical modifications
Use of unauthorized parts
The actual scope of delivery may deviate from the following explanations and descriptions in the case of
special models, additional ordering options or technical updates.
The sale, delivery and operation of this unit are subject to the mutual rights and obligations laid down in the
purchasing agreement, the manufacturer’s Terms and Conditions and the laws and regulations applicable at
the time of agreement.
We reserve the right to make technical changes to improve the performance properties of the unit or to
accommodate technological progress.

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1.5 Replacement parts
WARNING!
Inappropriate replacement parts create a safety hazard!
Inappropriate or faulty replacement parts may affect the safety of the unit and cause
damage, malfunction or failure.
Therefore:
Use only original replacement parts provided by the manufacturer.
Replacement parts can be obtained from authorized dealers or directly from the manufacturer
(address on Page 4).
1.6 Warranty
The Warranty Terms and our Terms and Conditions are available on the internet (address on Page 4).
1.7 Customer Support
For technical information, please contact customer support (address on Page 4).
Our staff is always interested in new information and insights gained from the use of our units because they
might be valuable for future improvements of our products.

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2 Safety
This section gives an overview of all important safety aspects for maximum staff protection and for safe and
trouble-free operation.
Failure to follow the safety and operator instructions in these Instructions for Use may result in considerable
hazards!
2.1 Responsibilities of the owner/legal operator
This unit is designed for use in a commercial environment. The owner/legal operator of the unit must comply
with statutory obligations on occupational safety.
In addition to the Occupational Safety Notes in these Instructions for Use, all regulations pertaining to safety,
accident prevention and environmental protection applicable to the site of operation must be observed. The
following items are of particular importance in this regard:
The owner/legal operator has to become thoroughly acquainted with the applicable health and safety
regulations and conduct a risk assessment to discover any additional hazards that may exist in view of
the special working conditions at the site of operation. The results of this risk assessment must be
implemented in the form of standard operating procedures for the unit.
The owner/legal operator is responsible for assigning clear responsibilities for the installation, operation,
maintenance and cleaning of the unit.
The owner/legal operator must ensure that all employees who work on or with the unit have read and
understood the Instructions for Use.
In addition, the owner/legal operator must provide regular staff training and inform the staff about any
hazards.
The owner/legal operator must make the necessary protective equipment to the staff.
Furthermore, the owner/legal operator must ensure that the equipment is always in good technical
condition.
The owner/legal operator must ensure that the maintenance intervals specified in these Instructions for
Use are complied with.
The owner/legal operator must have all safety equipment regularly checked for proper function and
completeness.
2.2 Requirements of the staff
2.2.1 Qualifications
WARNING!
Insufficient qualification is an injury hazard!
Improper use or operation may lead to substantial injury or property damage.
Therefore:
All work must be carried out by qualified staff.
Staff
Laboratory assistant, trained dental technician
Anyone who, based on his or her special training, training, knowledge and
experience and acquaintance with applicable regulations, is able to perform the
assigned tasks and identify and avoid potential hazards.
Qualified electrician
Anyone who, based on his or her special training, knowledge and experience and
acquaintance with applicable regulations, is able to correctly connect and put into
operation electrical systems and to identify and avoid potential hazards.

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2.3 Intended use
The unit is intended and designed for the following use only:
The high-temperature furnace is used for sintering dental zirconium dioxide ceramics as well as crowns
and bridges made of cobalt-chromium alloys for sintering at temperatures of up to 1,600°C.
WARNING!
Inappropriate use of the device constitutes a hazard!
Any use of the unit beyond or outside the intended and use may lead to hazardous
situations.
Therefore:
–Use the unit only as intended.
–Follow all instructions in these Instructions for Use strictly.
Any claims for damages resulting from improper use are excluded.
Any damage resulting from improper use is the sole responsibility of the owner/legal operator.
2.4 Personal protective equipment
The use of personal protective equipment is required while working on or with the unit to minimize any health
hazards.
Make sure to wear the required protective equipment at any time while working on or with the unit.
Follow the posted requirements for any personal protective equipment required.
2.5 Special hazards
Observe the safety instructions listed here and the warnings in the other chapters of these Instructions for
Use to reduce health hazards and avoid dangerous situations.
Electric current
DANGER!
Electric current is a life hazard!
Touching live components may pose an immediate threat to life. Any
damage to insulation or individual components may be life-threatening.
Therefore:
In case of damage to the insulation, disconnect the power supply
and make arrangements for repair.
All work on the electric system must be carried out by a qualified
electrician.
Prior to any work on the electric system, disconnect the system
from the power supply and make sure that is free of any voltage.
Prior to any maintenance, cleaning or repair work, switch off the
system’s power supply and secure it against being switched back
on.
Do not bypass or disconnect any fuses. When replacing fuses,
make sure the amperage is correct.
Keep moisture away from live parts, as moisture may cause short-
circuiting.

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Hot surfaces
CAUTION!
Burn hazard when touching hot surfaces!
Contact with hot components can cause burns.
Therefore:
Always wear protective clothing and gloves when working near
hot components.
Always ensure that all components have cooled to ambient
temperature before any work.
Hot objects
WARNING!
Burn hazards when touching hot objects!
Objects reach high temperatures during operation and can cause burns
on contact.
Therefore:
Before handling objects, check whether they are hot. If necessary,
allow to cool.
Handle hot objects exclusively with feeding tongs.
Mineral fibres
The heat insulation of the firing chamber and the firing base contain ceramic fibres
that have been rated as carcinogenic.
Measurements performed on a ceramic furnace while in use have shown that the actual
level of these fibres is significantly lower than the acceptable risk threshold if the
furnace is used as per the manufacturer’s instructions.
Any damage to the furnace must be repaired by a recognized expert (e.g. DeguDent’s
Technical Service).
Visible deposits of fibres are freely accessible parts of the furnace must be
removed by approved cleaning methods (e.g. by wiping them off with a moist cloth
or by vacuuming using approved filters).
Fibres must never be blown away with compressed air nor brushed away with
brooms were brushes while still dry.
Should you detect unusual quantities of visible fibre deposits on freely accessible parts
of the furnace, please contact a recognized expert as mentioned above.
Use of defective accessories containing ceramic fibres must be discontinued
immediately.

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2.6 Behaviour in case of danger or accidents
Preventive
measures
Always be prepared for accidents or fire!
Keep first-aid equipment (first-aid kit, blankets etc.) and fire extinguishers within
easy reach.
Make sure all staff members are familiar with equipment and devices for
reporting accidents, for providing first-aid and life-saving functions.
Keep access routes clear for emergency vehicles.
Procedures
in case of
accidents
Immediately switch off the unit (emergency off).
Initiate first-aid measures.
Persons from the danger zone.
Remove persons from the danger zone.
Alert the emergency services.
Keep access routes clear for emergency vehicles.
2.7 Signage
The following symbols and signs are mounted outside the furnace casing and the auxiliary fan.
WARNING!
Risk of injury due to illegible symbols!
Over time, labels and symbols may become dirty or otherwise unrecognizable.
Therefore:
Always keep any safety, warning and operating hints on the machine perfectly legible.
Replace damaged signs or labels immediately.
Warning “Hot surface” (on the furnace housing)
Hot surfaces are not always immediately recognizable as such.
Allow to cool before handling. Use gloves if necessary.
Fig. 1: Mains connection.
Warning “Follow Instructions of Use”
(on the primary power receptacle)

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3 Technical specifications
3.1 General
Parameter
Value
Unit
External dimensions (W × H × D)
385 × 780 × 500
mm
Heating chamber volume
2 bowls 120 mm × 35 mm
Maximum temperature
1650
°C
Heating rate
selectable: 1–99
°C/min
Weight
58
kg
3.2 Electrical connection
Electrical
Parameter
Value
Unit
Nominal supply voltage
220-240
V AC
Frequency
50
Hz
Permissible deviation
from the nominal voltage
± 10
%
Maximum Power
consumption
2000
W
Overvoltage category
II (pursuant to IEC 60364-4-443)
Protection against
overvoltage
Provide suitable surge filters
Fuse rating (on site)
Connect to a dedicated circuit protected by a
T10 AH 250 V fuse
3.3 Operating conditions
Environment
Parameter
Value
Unit
Temperature range
5–40
°C
Maximum relative
humidity
up to 31°C: 80
%
up to 40°C: 50
%
non-condensing
Installation
Indoors in dry rooms only
Height above sea level
maximum 2000
m
Pollution severity
Tested for pollution severity –Pollution degree II

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3.4 Rating plate
The nameplate is located on the left side of the housing and contains the following information:
Manufacturer name and address
Type designation (Type)
Serial number (S/N)
Supply voltage and frequency
Power consumption
Disposal symbol
CE mark
Country and year of manufacture
4 Design and function
4.1 Overview
Fig. 2: Overview
1 Control panel
2 Lifting plate
3 Object bowl
4 Heating chamber (inside the housing)

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4.2 Description of components
Heating chamber
The heating chamber is made of a high-quality ceramic material
evenly heated by four MoSi2heating elements.
Heat insulation
The heating chamber is surrounded by a ceramic insulating layer
on all sides.
Lift
The objects are lifted in and out of the heating chamber
automatically using on electric motor drive.
Heat controller
The heat controller ensures that the desired temperature is
achieved in the shortest possible time. The target temperature is
maintained with an accuracy of ± 3°C. A probe with a PtRh-Pt
thermocouple inside the heating chamber detects the chamber
temperature in the vicinity of the object. A thermocouple break
protection ensures that the furnace does not overheat in the case
of a faulty probe.
Operating parameters and heating programs are stored in non-
volatile memory and are retained even in the event of a power
failure.
Furnace housing
The furnace housing is made of corrosion-resistant stainless steel.
The control panel and the housing have an additional internal and
external plastic coating (light grey, RAL 7035).
4.3 Connections
Fig. 3: Connections
1. Power
2. 2 fuses, T10 AH, 250 V
3. RS232 interface for transmitting temperature readings to a PC
4. Argon connector
4.
3.
2.
1.

Page 14
4.4 Hazardous
Fig. 4: Potential burn hazard
Furnace housing hazard area
Burn hazard on external surfaces!
Fig. 5 Potential pinching hazard.
Lift hazard area
Risk of pinching (1) between the lift plate and the access of the
heating chamber (hidden)
4.5 Controls
4.5.1 Electronic controls
Fig. 6: Display (overview)
1 Display
2 S1–S4 level buttons
3 Level LEDs
4 Numeric keypad
5 On/Off switch
6 Start/Stop button
7 Fbutton
8 Timer button
9 Save button
10 Load button
1

Page 15
4.5.2 Switch and button functions
Fig. 7: On/Off switch, in On position
Power switch is lit when the power is on
(switch pressed downward)
Buttons
Button
Function
0–9(numeric buttons)
Enter numbers
Fbutton
Open parameter dialogue
Start/Stop button
Start/stop heating program
Load button
Load heating program from memory
Save button
Save heating program to memory
Timer button
Activate/deactivate timer
S1–S4 level keys
If standby LED is lit:
Set heating parameters
Within dialogues:
(make selection depending on dialogue)
4.5.3 Display functions
The structure and operation of the display are described in detail in
section 7, Operation 23.
4.6 Scope of delivery
Crypton®version
Furnace
Cable
Argon door
Crypton®bell set, assembly
Zirconium oxide beads, Ø 1.25 mm (200 g) for Crypton
Pliers for bowls
Cercon®version
Furnace
Cable
Cercon®door
Speed sintering bowl assembly, Ø 100 mm
Aluminium oxide beads, Ø 1–2 mm (200 g) for Cercon
Pliers for bowls

Page 16
5 Transport, packaging and storage
5.1 Safety instructions for transport
Improper transport
CAUTION!
Improper transport may cause damage!
In case of improper transportation, substantial property
damage may result.
Therefore:
Exercise caution when delivering and unloading the
packed items and when transporting them on the
site. Observe the symbols on the packaging.
Do not remove the packaging until shortly before
installation.
Furnace weight
CAUTION!
Risk of injury on improper lifting of the furnace!
Improper lifting of the furnace can lead to back pain and
injury due to the furnace’s heavy weight.
Therefore:
Enlist the help of an additional person when
attempting to lift the furnace.
5.2 Symbols on the packaging
Up
The arrowheads point towards the top of the package. They must always point upwards, as
the contents may be damaged otherwise.
Fragile
Identifies packages with fragile or delicate contents.
Handle the package with caution. Do not drop it or expose it to shock.

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5.3 Delivery inspection
On receipt, immediately check the consignment for completeness and any transport damage.
In case of visible transport damage, proceed as follows:
Refuse the consignment or accept it only with reservations.
Note the extent of damage on the transport documents or on the delivery note.
Initiate complaint process
NOTE:
File a complaint for every defect immediately on detection. Damage claims can be filed only
within the applicable deadlines for complaints.
5.4 Packaging
Packaging information
The individual packages are properly packaged for the expected
transport conditions. Only environmentally friendly materials were
used for packaging.
The packaging is designed protect the individual components from
transport, corrosion and other damage until assembled. Do not
damage the packaging and do not remove it until immediately
before installation.
Handling packaging materials
Dispose of packaging material according to the applicable legal
requirements and local regulations.
CAUTION!
Environmental damage from improper disposal!
Packaging materials are valuable raw materials and
can be reused or appropriately recycled.
Therefore:
Dispose of packaging material in an
environmentally responsible manner.
Follow applicable local regulations for
disposal. If necessary, enlist the services of a
disposal specialist.

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5.5 Transport
Transporting pallets with a forklift
Fig. 8: Fork positions
Packages on pallets can be transported with a forklift under the
following conditions:
The forklift must be able to accommodate the weight of the
pallet and package(s).
The operator of the forklift must be properly licensed.
Lifting:
1.Move the pair of forks of the truck between the bars or under
the pallet.
2.Move the pair of forks forward until they emerge on the
opposite side.
3.Make sure the pallet cannot tilt even if its centre of gravity is
off-centre.
4.Lift the pallet and move.
Storing the packages
Store the packages under the following conditions:
Do not store in the open.
Store in a dry and dust-free area.
Do not expose to corrosive substances.
Keep away from sunlight.
Avoid mechanical shocks.
6 Installing and commissioning
6.1 Safety
Staff
Laboratory assistant, trained dental technician
Qualified electrician
General
WARNING!
Improper installation and commissioning is an injury
hazard!
Improper installation and commissioning can lead to
serious injury or property damage.
Therefore:
Before starting, make sure there is ample space for
installation.
Handle protruding sharp-edged components with care.
Ensure that the installation site is orderly and clean.
Loosely stacked or scattered components and tools
can cause accidents.
Install all components properly.
Secure components so they do not fall down or
collapse.

Page 19
Electrical installation
DANGER!
Electric current is a life hazard!
Contact with live components can be a life hazard.
Therefore:
Prior to any work, switch off the system’s power
supply and secure it against being switched back on.
Furnace weight
CAUTION!
Risk of injury on improper lifting of the furnace!
Improper lifting of the furnace can lead to back pain and
injury due to the furnace’s heavy weight.
Therefore:
Lift the furnace only as described in section 4, Design
and function, page 12.
Enlist the help of an additional person when
attempting to lift the furnace.
6.2 Installation
6.2.1 Deploying the high-temperature furnace
Install the high-temperature furnace on a completely level.
Make sure that the floor space of the furnace has adequate weight-
bearing capacity.
Ensure proper operating conditions (section 3,Technical
specifications, page 11).
CAUTION!
Surrounding objects may ignite due to the high
temperature of the unit!
Even with proper operation of the ceramic furnace,
some components will be very hot. Combustible,
flammable or explosive materials in the vicinity may
be ignited.
Therefore:
Make sure that exposed furniture and
equipment are not made of combustible,
flammable or explosive materials.
Do not store flammable or combustible gases
or liquids in the same room as the ceramic
furnace.