DENTSPLY Multimat Easy User manual

Instructions for Use
Multimat®Easy
GB

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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 will not be
responsible for such errors.

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Content
1General .......................................................................................................................................................4
1.1 About these Instructions for Use ..........................................................................................................4
1.2 Layout elements used in these Instructions for Use ............................................................................4
1.3 Device type and year of manufacture ..................................................................................................5
1.4 Manufacturer and service addresses ...................................................................................................5
1.5 Intellectually property rights..................................................................................................................5
1.6 Proper use............................................................................................................................................5
2Safety notes ...............................................................................................................................................6
2.1 Safe transport.......................................................................................................................................6
2.2 Safe operation ......................................................................................................................................7
2.3 Safe maintenance and troubleshooting................................................................................................7
2.4 Safe handling of ceramic fibres............................................................................................................7
2.5 Warning decals on the unit...................................................................................................................8
3Technical description................................................................................................................................8
3.1 Base unit...............................................................................................................................................8
3.2 Connectors ...........................................................................................................................................9
3.3 Scope of delivery..................................................................................................................................9
3.4 Optional accessories ..........................................................................................................................10
3.5 Technical specifications and operating environment .........................................................................10
3.6 Features .............................................................................................................................................11
4Commissioning........................................................................................................................................12
4.1 Unpacking and checking accessories ................................................................................................12
4.2 Setting up and connecting..................................................................................................................12
4.3 Dehydration ........................................................................................................................................12
5Operation..................................................................................................................................................13
5.1 Control panel ......................................................................................................................................13
5.2 Display................................................................................................................................................14
5.3 Firing parameters ...............................................................................................................................15
5.4 Moving through the menus/Menu overview .......................................................................................17
5.5 Menu explanations .............................................................................................................................18
6Operation..................................................................................................................................................19
6.1 Turning on the unit/Starting a firing program......................................................................................19
6.2 Designing and starting your own firing program ................................................................................20
6.3 View function (soldering) ....................................................................................................................22
6.4 Entering standby mode ......................................................................................................................22
6.5 Fast cooling or manual fast cooling....................................................................................................22
7Maintenance and cleaning......................................................................................................................23
7.1 Firing support maintenance................................................................................................................23
7.2 Replacing the firing muffle..................................................................................................................23
7.3 Vacuum pump maintenance...............................................................................................................23
8Calibration using a silver wire test ........................................................................................................24
8.1 Silver wire calibration program ...........................................................................................................25

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8.2 Entering the calibration offset.............................................................................................................25
9Error messages and troubleshooting ...................................................................................................26
9.1 Power failure ......................................................................................................................................27
10 Pre-defined programs .........................................................................................................................28
11 Disposal ................................................................................................................................................30
12 EC Declaration of Conformity.............................................................................................................31

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Dear customer,
Thank you for your confidence in Multimat®Easy. This furnace for firing and pressing dental ceramics is a safe
high-quality device featuring numerous automated functions. It is characterized by ease of handling and minimal
training requirements.
The device is almost maintenance-free and suitable for continuous operation.
We hope you will appreciate your results with the Multimat®Easy.
1 General
1.1 About these Instructions for Use
Compliance with these Instructions for Use is a prerequisite for the successful and safe operation of the
Multimat®Easy. These Instructions for Use contain important information for operating this device in a safe,
appropriate and economic manner. Compliance with these Instructions for Use also helps avoid hazards, limits
repair costs and downtime and increases the reliability and prolongs the life of the Multimat®Easy.
These Instructions for Use must be continuously present near the unit and must be read by all persons working
with the Multimat®Easy.
DeguDent GmbH will not be responsible for any damage caused by improper use or operation of the Multimat®
Easy and/or non-compliance with these Instructions for Use.
1.2 Layout elements used in these Instructions for Use
Safety notes related to personal injury, accidents or property damage:
The unit must be opened only by authorized DeguDent GmbH authorized personnel!
Step-by-step instructions
1. Remove ...
2. Locate ...
Designations for user interface elements:
Menu key
Emphasis:
The front of the unit includes display (1) with its ...
Additional notes and hints:
Note: You may also use existing programs to …

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1.3 Device type and year of manufacture
Multimat®Easy
Year of manufacture: from 2008
1.4 Manufacturer and service addresses
DeguDent GmbH
Rodenbacher Chaussee 4
63457 Hanau
Germany
Tel.: [phone]
Fax: [phone]
1.5 Intellectually property rights
© 2011, 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.
Violations of these rights will be prosecuted and will make the guilty party liable for damages. All intellectual
property, trademark, service mark and other rights are reserved by DeguDent GmbH.
1.6 Proper use
The Multimat®Easy is a device for firing dental ceramic materials. Observe the alloy and ceramic
manufacturers’ directions and recommendations.
Any use outside or beyond these directions or specifications does not constitute proper use. Any damage
resulting from such use will be the sole responsibility of the user of the Multimat® Easy. The same applies for
any unauthorized changes to the unit. Proper use presupposes compliance with all notes on
safety,
operation,
care, maintenance and trouble shooting,
described in these Instructions for Use. The unit is intended solely for dental laboratory use. Any use in other
locations or for other purposes requires prior written approval of DeguDent GmbH.

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2 Safety notes
All DeguDent GmbH devices are designed and produced using state-of-the-art technology and following all
recognized safety rules.
Nevertheless, using these devices may result in hazards to operators or third parties or damage to the
Multimat® Easy or other property, e.g. if:
The unit is operated by untrained or not properly instructed personnel
The unit is not employed for its appropriate uses
The unit has not been properly operated or maintained
Use only qualified and trained personal to perform the tasks described in these Instructions for Use. Observe
any applicable legal age restrictions!
Personnel to be trained or guided, including vocational trainees, must work with the Multimat® Easy only if
continuously supervised by an experienced operator!
2.1 Safe transport
The Multimat® Easy weighs approximately 22.7 kg and must be lifted and transported by two persons.
The unit is shipped in a cardboard case and is protected by an upper and a lower interior foam shell. These
shells are designed such that the firing base is also protected from shock by an elastic foam element. When
repackaging the unit, make sure that this protective foam element is properly in place.

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2.2 Safe operation
To ensure safe operation of the unit, read and follow the following instructions:
Do not place the Multimat®Easy press and the vacuum pump (available separately) in the immediate
vicinity of sources of heat to prevent overheating of the unit.
Keep the device clear of the nearest wall or object. The minimum distance is 25 to 30 cm.
Place the unit only on non-flammable surfaces. Keep flammable objects and liquids away from the device.
Position the vacuum pump such that adequate ventilation is assured.
Protect the unit from moisture and steam.
Ensure that the unit and the vacuum pump (available separately) are connected only to the appropriate
mains voltage (see 3.5 Technical specifications and operating environment, page 10)
Never open the unit under any circumstances. Electric shock hazard!
Do not operate the unit unless it is firmly placed on the firing base to avoid excessive wear and tear on the
seals of the firing platform, which might even result in deformation of the carrier plate.
Use only your fingers or a stylus to operate the touch screen. Do not touch the screen with pointed or hot
objects.
The firing platform moving upward presents a crushing hazard for hands and fingers!
If the Multimat®Easy is not to be used for an extended period, disconnect the unit from mains.
Make sure the mains plug of the power cord is readily accessible so the unit can be disconnected easily
and quickly in the event of an emergency.
2.3 Safe maintenance and troubleshooting
Observe the following rules during maintenance, repairs, or troubleshooting tasks:
All repairs must be performed by authorized DeguDent personnel only.
All work on electrical components must be performed by qualified electricians.
Disconnect from mains before opening the unit.
Use only original replacement parts.
Some components of the Multimat®Easy are subject to a certain amount of wear and tear.
It is therefore recommended to subject the unit to technical inspections at yearly intervals.
2.4 Safe handling of ceramic 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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2.5 Warning decals on the unit
The Hot Surface warning decal alerts the operator to hot temperatures on
Multimat®Easy surfaces that may prevail near the firing chamber,
especially in the case of higher firing temperatures.
The Generic Hazard warning decal is attached near the vacuum pump
power receptacle (see 3.2 Connectors, page 9). This decal alerts you to
the following safety hazards:
The vacuum pump power receptacle is intended exclusively for connecting
a vacuum pump.
The vacuum pump power receptacle carries mains voltage.
The maximum vacuum pump current is 1 A.
3 Technical description
3.1 Base unit
The Multimat®Easy consists of an attractively designed
and stable metal housing (1) with a firing chamber
top (2). The heat inside the firing chamber (2) is
generated by a quartz muffle with an openly
radiating filament winding. The walls of the firing
chamber are filled with insulating ceramic fibres to
keep the heat loss to a minimum (see also 2.4 Safe
handling of ceramic fibres, page 7).
The firing objects including the firing base and firing
support (see also 3.4 Optional accessories, S. 10) are
placed on the moving firing platform (3). During the
firing process, the firing platform is raised into the firing
chamber, to be lowered again once the firing process
has been completed. The chamber is lowered and
raised by a geared-down stepper motor.
For easier handling, the firing object including the firing
support can be placed on the U-shaped magnetic rest.
The control panel (4) and display (5) are
ergonomically located at the front of the unit. It allows
you to activate the pre-defined firing programs or to
define and store your own programs. All firing
processes are controlled by an electronic
microcontroller inside the unit.
The Multimat®Easy rests on four feed (6) for maximum
stability
1
2
3
4
5
6

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3.2 Connectors
The following connectors are available:
Primary power connector (7),
On/off switch with automatic circuit breaker (8),
RJ45 connector (9) (for service purposes only),
2 x USB connectors (10) for service updates via
USB,
Vacuum pump air hose connector (11),
Vacuum pump power connector (12) to provide
the optional vacuum pump with mains power.
The vacuum pump power connector is intended
exclusively for connecting a vacuum pump. The
vacuum pump power connector carries mains
voltage.
The maximum vacuum pump current is 1 A.
3.3 Scope of delivery
The scope of delivery includes:
Multimat®Easy ceramic firing furnace
Mains cable for high-temperature devices
Instructions for Use
One firing base (13)
One firing support (14)
One U-shaped rest, magnetic (15)
One pair of tweezers
Image shows carrier bottom
14
13
15
7
11
12
8
7
11
10
9
12
8

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3.4 Optional accessories
The following optional accessories are available from
DeguDent GmbH:
Vacuum pump (16)
Calibration set (17) “Silver wire test, manual”
REF D 03 532 803, consisting of 5 wire carriers
and 20 silver wires (0.3 mm in diameter, 37 mm
in length).
3.5 Technical specifications and operating environment
Power supply
100 –115 V AC, 50/60 Hz or
230 –240 V AC, 50/60 Hz
Acceptable voltage fluctuations
10% or less
Maximum power consumption
1 580 W
Power consumption in sleep mode
18 W
Dimensions (W x D x H)
280 mm x 430 mm x 610 mm
Weight
approx. 22.7 kg
Firing chamber clearance
67 mm
Firing chamber diameter
85 mm
Deployment
Indoors only, on a non-flammable surface
Ambient temperature
0–40°C, preferably 20°C 2°C
Humidity
80 % RH up to 31 °C, linear decrease to 50 % at 40 °C
Heating element
Quartz muffle with an openly radiating filament winding
Maximum firing temperature
1 200°C
Display
Backlit 2 x 24 character LCD display
Input device
Membrane keyboard
16
17

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3.6 Features
Comprehensive firing data display
100 programs freely programmable and storable programs; numerous predefined sample programs
available
Programs may be modified during the cycle.
Existing programs can be modified and saved as special programs
Copying an existing program to a different program number
Up to 99 minutes vacuum time
Set vacuum display
Adjustable vacuum
Up to 99 minutes of firing time
Up to 25 minutes of firing and pre-heating time
Heating rates of 1 –120°C/minute
Cooling available in 3 cooling levels
Manual or programmable fast cooling via vacuum pump
Time-to-completion countdown display
Overheating protection and muffle monitoring
High-precision temperature settings
Standby operation to avoid moisture in the firing chamber
Vacuum program to avoid moisture in the fibre insulation
Global hours-of-operation counter
Vacuum pump hours-of-operation indicator
Language selection
Error message display
Automatic continuation after short-term power-outs
Unlimited data retention after power-outs
Automatic mains frequency detection
Beep signals, can be deactivated
Entering of a calibration offset following calibration with a silver wire

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4 Commissioning
4.1 Unpacking and checking accessories
1. Check the Shock watch sticker on the cardboard box. If the sticker has turned
red, the impact energy during transport was higher than allowed, and your unit
could be damaged. Ask the transport agent to confirm the triggering of the
Shock watch label in writing.
2. Open the cardboard case and remove the upper foam shell
3. Remove the unit including its accessories. The first person must hold the unit
with both hands below the control panel at the front of the unit, while the other
person must hold the base of the unit with both hands. Have two persons lift the
unit from its packing case, then remove the components and accessories.
Always have two persons transport the unit. See illustration on page 6.
4. Check the delivery for completeness (see 3.3 Scope of delivery, page 9) or
damage in transit. Notify DeguDent GmbH immediately of any damage.
4.2 Setting up and connecting
1. Place the device on a sturdy, non-flammable surface. The
minimum distance from the nearest wall or object is 25 to
30 cm (see also 2.2 Safe operation, page 7).
2. Connect the device end of the mains cable to the unit.
Connect the mains plug of the mains cable to a properly
installed and protected mains socket (see also 3.5
Technical specifications and operating environment,
page 10). The Multimat®Easy must be the only device on
its circuit. No extension cords may be used.
3. Connect the tubing between the vacuum pump (available
separately) and the air inlet that the device (see
illustration).
4. Place the firing base on the firing lift; use the magnetic
firing platform where appropriate.
4.3 Dehydration
After transport and before operating the Multimat®Easy for the first time or after prolonged periods of non-
use, it is recommended to dehydrate the unit. To do so, choose the special dehydration program from among
the pre-defined programs (see 5.5 Menu explanations, page 18), which will perform the dehydrating. For
instructions on starting a program, see 6.1 Turning on the unit/Starting a firing program, page 19.

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5 Operation
5.1 Control panel
All parameters are shown on the display and can be entered or edited here. Parameters are entered
exclusively via the keys of the control panel (membrane keyboard). Use the keys of the membrane keyboard to
make your entries, which will be reflected in the display (see also 5.2 Display, page 14), or to switch between
different menus (see “Moving through the menus/Menu overview”)
(1) Display: Shows all firing parameters (see also
5.2 Display, page. 14).
(2) On/off key: Turns the controller on or off. When
turned off, the firing chamber will be closed by the
firing platform, and the unit will be in standby mode
(vacuum and standby temperature).
(3)  keys: Move the firing platform upward/down
(4) Star key: Activate fast cooling using the vacuum
pump
(5) Menu key: Calls the configuration menu; from
there additional submenus for system configuration
can be invoked (see 5.4 Moving through the
menus/Menu overview, page 17)
(6) Pkey: Runs a specific program directly.
(7) Skey: Saves the parameters shown on the
display.
(8) ◄► keys: For moving within menus (see
“Moving through menus/Menu overview”)
(9) –/+ keys: Increases/decreases parameter
values.
(10) ESC key: Returns without applying changes.
(11) ENTER key: Confirms and applies changes.
(12) Numeric keypad: For entering parameter
values, digits 0 to 9.
(13) Start/stop key: Starts/Stops the firing program.
(14) Green LED: Lit while firing program is running.
1
2
5
4
3
6
7
8
9
10
11
12
13
14

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5.2 Display
(1) Program number, max. 99 programs
(2) Fast cooling indicated by
(3) Pre-heating temperature, 100 to 350°C
(4) Heating rate, 1 to 120°C/minute
(5) Pre-set firing temperature, 300 to 1200°C
(6) Actual firing temperature, 0 to 1250°C
(7) Remaining firing time, 00 to 99 min
(8) Pre-set drying time, 0 to 25 min
(9) Pre-set pre-heating time, 0 to 25 min
(10) vacuum on/off, vacuum level, 1 to 99 hPa
(11) vacuum time, 0.0 to 99.9 min
(12) Pre-set firing time, 0.0 to 99.9 min
(13) Cooling stage, 0, 1, 2 or 3
1
2
3
4
5
6
7
8
9
10
11
12
13

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5.3 Firing parameters
(1) Program number: A maximum of 99 programs can be stored. The current number is shown on the display
as a two-digit figure.
(2) Fast cooling indicator: Fast cooling means that the vacuum pump is turned on and will suck in air through
the firing chamber until the base temperature is reached. If the fast cooling function is activated, an asterisk is
shown. Cooling proceeds until the base temperature is reached (see 6.5 Fast cooling or manual fast cooling,
page 22)
(3) Pre-heating temperature: The temperature to be reached prior to firing. Select a value between 100°C and
1200°C.
(4) Heating rate: This is the speed of the temperature increase during the heating face. Select a value between
1°C and 120°C per minute.
(5) Pre-set firing temperature: The temperature to be reached during firing. Select a value between 300 to
1200°C.
(6) Actual firing temperature: The current temperature in the firing chamber. Select a value between
0 to 1250°C.
(7) Remaining firing time: The remaining firing time in minutes as shown.
(8) Pre-set drying time: The chamber is heated in order to reach the pre-heating temperature. During this time,
the firing chamber will gradually close. Select a duration between 0 and 25 minutes.
(9) Pre-set pre-heating time: The chamber is heated in order to reach the pre-heating temperature. During this
time, the firing chamber will be closed. Select a duration between 0 and 25 minutes in a maximum of two
places.
(10) Vacuum on/off, vacuum level: If a vacuum is present, its magnitude is displayed here. The vacuum is
displayed as a value between 1 hPa and 99 hPa.
(11) Vacuum time: The time during which the vacuum pump will be running. Select a value between 0.0 and
99.9 minutes.
(12) Pre-set firing time (holding time): The duration of the firing. Select a value between 0.0 and 99.9 minutes.
(13) Cooling stage: Cooling in multiple stages results in a gradual release of tension within the ceramic
material. If selected under (2) the progression of cooling stages will begin immediately after firing (12).
Stage 0 –Firing platform immediately moves to is bottom position, no cooling.
Stage 1 –Firing object is lowered by approx. 7 cm
Stage 2 –Firing object is lowered by approx. 5 cm
Stage 3 –Firing object remains in the chamber
The starting point in each case is the base temperature (pre-set to 400°C). Once the program has been started,
the unit pre-heats to the pre-set pre-heating temperature (e.g. 575°C) (see also “Pre-heating temp start”).
During the drying phase (8), the firing chamber is gradually closed. Closure will be completed at the end of the
drying phase, as the pre-heating temperature reaches its pre-set value. The program then waits out the pre-set
pre-heating time (9) and starts the vacuum pump. Once the full vacuum has been attained, this is followed by
the heating phase.

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5.4 Moving through the menus/Menu overview
The values discusses in 5.3 Firing parameters, page 15 are shown in the main menu, which is displayed
when the unit is operating or when new programs are being programmed. On power-up, additional menus
may appear before the main menu. From the main menu, use the Menu key to invoke numerous submenus
where additional parameters can be configured. To return to the previous menu, press the ESC key. The
following menu overview explains what keys can be used in their respective menus: