whitepeaks calidia sintec 770 User manual

Directory
1. Introduction ................................................................................................................................................... 3
2. Product description ....................................................................................................................................... 4
3. Scope of delivery ........................................................................................................................................... 4
4. Technical data ................................................................................................................................................ 5
5. Warranty and liability .................................................................................................................................... 5
6. Intended use .................................................................................................................................................. 6
6.1 Safety indications .................................................................................................................................... 6
6.2 equirements .......................................................................................................................................... 7
7. Operating staff ............................................................................................................................................... 7
8. Operation ....................................................................................................................................................... 8
9. Emergency measures ..................................................................................................................................... 8
10. Environmental regulations .......................................................................................................................... 8
11. Installation and inital operation .................................................................................................................. 8
12. Installation of the heating elements ........................................................................................................... 9
13. Installation of the ceramic air duct ............................................................................................................ 11
14. Position of the furnace .............................................................................................................................. 11
15. oom ventilation ....................................................................................................................................... 12
16. Electric connection .................................................................................................................................... 12
17. Connecting the vacuum pump .................................................................................................................. 13
18. Connecting the argon gas .......................................................................................................................... 15
19. Connecting the compressed air ................................................................................................................. 16
20. Initial operation ......................................................................................................................................... 17
21. Instrucion manual for the controller of the Calidia Sintec 770 ................................................................. 17
22. Loading of the furnace ............................................................................................................................... 19
23. Maintainance and cleaning ....................................................................................................................... 21
23.1 eplacing the insulation of the Calidia Sintec 770 .............................................................................. 21
23.2 Cleaning the Calidia Sintec 770 ........................................................................................................... 21
24. Ordering spare parts .................................................................................................................................. 22
25. eplacing the heating elements ................................................................................................................ 22
26. eplacing the temperature sensors .......................................................................................................... 23
27. eplacing the fuse ..................................................................................................................................... 23
28. Service of the furnace ................................................................................................................................ 23
29. emote maintainace PLC ........................................................................................................................... 23
30. Faults ......................................................................................................................................................... 24
31. EC declaration of conformity ..................................................................................................................... 25

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1. Introduction
Dear customer,
you have decided to buy a sintering furnace from
Whitepeaks Dental Solutions GmbH & Co. KG
Langeheide 9
45239 Essen
Germany
(subsequently called Whitepeaks Dental Solutions ).
Thank you for your decision. We are glad to provide you with a sintering furnace of highest quality
and process reliability. The product has been especially developed for sintering milled CopraSintec
K powder metal units from Whitepeaks Dental Solutions.
The Calidia Sintec 770 is a high performance Argon shielding gas furnace. The furnace is extremely
easy to maintain and is very efficient, which becomes noticeable in a low energy consumption. An
additional vacuum pump, which is included in the scope of delivery, provides an emission-free
sintering atmosphere. The integrated forced air cooling leads to short cycle times.

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. Product description
Shielding gas sintering furnace
with vacuum pump
The Calidia Sintec 770 is carried out as a tabletop
unit and has a modern touchscreen.
Thanks to fixed preset sintering programs the
furnace can be operated easily and safely.
The sintering facility is designed for a heating
chamber temperature of 1350°C max., which is
not reached by far when sintering powder metals,
which are used in dental technology.
The Calidia Sintec 770 is equipped with especially
long-living SIC (silicium carbide) heating elements,
which can be easily replaced.
3. Scope of delivery
1. High temperature sintering furnace Calidia Sintec 770 1
2. Multi part CopraArgon Tray sintering device 1
3. Sintering peals Calidia Sintec Pearls 1
4. Vacuum pump 1
5. Power cord 1
6. Manual 1
7. Pair of tongs 1
8. Oil for filling of the vacuum pump 1

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4. Technical data
Model
:
Calidia Sintec 770
Inside dimensions :
130 x 120 x 130 mm
Outside dimentions :
385 x 400 x 465 mm
Volume / Liter :
2,03 L.
Weight :
23 Kg.
Maximum temperature :
1350 °C
Connected load :
3500 W
Max. rate of increase :
15 °C/ minute
Electric connection :
Single phase alternating current
Voltage :
220 – 240 V
Frequency :
50/60 Hz
Power plug :
Safety plug
Safety class furnaces :
DIN EN 60519-2
Protection class furnaces :
IP 20
Ambient temperature :
+5 °C bis +40 °C max
5. Warranty and liability
Warranty and liability are excluded for damage to person and property, when the damage results
from one or multiple of the following causes:
•Use of the device not according to regulations
•Initial operation of the furnace with non operating safety- and protective devices
•Initial operation despite of incorrect assembly, maintainance and operation of the furnace
•Misuse of the furnace
•Any liability is excluded for all interruptions and damages resulting from non-observance of
the manual.
•Further no liability can be accepted in case of modification of the furnace or in case of
changes of the operating parameters.
•In order to maintain the warranty only original parts from Whitepeaks Dental Solutions may
be used, else the warranty expires and any liability is excluded.
•The same applies to acts of God and to exposure to foreign objects.

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6. Intended use
The furnace has been built and tested carefully in accordance with the applicable provisions and
norms. The furnace guarantees the highest possible safety. The properties and sintering
temperatures of the applied sintering materials have to be considered categorically.
Sintering of other than the intended dental metal powder sintering materials holds as other than
the intended use of the furnace and has to be approved in writing by Whitepeaks Dental Solutions.
Of the used materials it has to be known, if they might be damaging for the heating elements, the
insulation or the bell-shaped sintering top.
Therefore the following has to be avoided:
•uncontrolled heating of the furnace
•opening of the furnace at temperatures of more than 200 ° C
•heating up to above 1350°C
6.1 Safety indications
It is forbidden to operate the furnace with explosive gases or mixtures of such gases, or processes
from which such gases might originate. The furnace may be operated only with commercially
obtainable Argon 4.6.
Gas- or compressed air bottles have to be fixed to a wall by a chain or another anchorage, so they
cannot topple over.
Electricity cables, gas- or air hoses have to be installed in a way, so that they can neither hinder, nor
become a tripping hazard.
The furnace has to be freed of dust inside and outside regularly to avoid a dust deflagration. The
furnace has to be mounted so that the hot furnace can be opened without any danger.

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6. Requirements
The safety instructions have to be observed, elsewise claims of any kind towards Whitepeaks Dental
Solutions are inapplicable.
It has to be guaranteed that:
•the vacuum pump is turned on, so that all dangerous emissions are lead out of the work area
and that the working space is well ventilated.
•the safety devices are tested regularly for their operational reliability and that personal
protective gear is used by the operating- or maintainance staff.
•the operating staff can see this manual at any time.
•the operating staff is instructed regularly in questions of occupational health and safety and
of environmental protection.
•all operating- and safety indication signs on the furnace are in a clearly legible condition.
•possible further dangers are determined and summarised in a risk assessment according to
§ 5 of the German Occupational Safety and Health Act.
•the furnace is only operated, maintained or repaired by instructed and authorised personnel.
Note
In Germany the general accident prevention regulations VBG, resp. BGZ have to be considered.
The national accident prevention regulations of the respective country apply.
7. Operating staff
Persons, who are assigend to mount, maintain or operate the furnace must have read and
understood this manual and have to be instructed regularly in all questions of environmental
protection and of occupational health and safety. For damages, that result from non-observance of
the manual and the instructions comprised therein Whitepeaks Dental Solutions assumes no
liability.

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8. Operation
Before you start running the furnace, please make sure, that all safety devices are working properly.
Identified defects have to be reported to the superior.
9. Emergency measures
In case of an emergency it is intended to pull the power plug. Therefore the power plug has to be
mounted, so that it is freely accessible at all times.
In case of an extraordinary development of fumes the furnace has to be switched off immediately
and the natural cooling has to be waited for.
Working on the electrical system is to be carried out by qualified personnel only. Before starting to
work the power plug has to be pulled.
10. Environmental regulations
At the time of the initial operation this furnace does not contain materials, that are classified as
hazardous waste. However during the operation, such materials can accumulate in the insulation.
Therefore it is necessary to dispose of replaced insulating materials as hazardous waste.
11. Installation and inital operation
After having compared the delivery note with the order, please check the goods for completeness
and possible defects. Should you discover transport damages, please inform the freight forwarder
and Whitepeaks Dental Solutions immediately. Later claims cannot be accepted.
During transport of the furnace the wearing of safety shoes is mandatory.
Jack lift transport
Our furnaces are deliverd on a wooden transport rack. The furnace should only be transported in
it´s package and with a jack lift, to avoid any damage. Please remove the package at the installation
location only. Storage in damp rooms or outdoors has to be avoided.
To avoid transport damage, the furnaces are packaged elaborately. All packing materials have to be
removed carefully and to be stored for a potential later transport. emove the box containing the
accessories. For protection againgst transport damages the furnace is equipped with a
transportation safety foam mat, which has to be removed before the intial operation. For that

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purpose please unscrew and remove the lid of the furnace and remove the foam mat. Afterwards
the heating elements can be installed. Then the lid of the furnace has to be screwed down into place
again.
In Germany, the general accident prevention regulations VBG, resp. BGZ have to be observed. The
national accident prevention regulations of each respective country have to be met.
1 . Installation of the heating elements
The heating elements have to be installed with greatest care, because they are extremely fragile. To
protect the heating elements against possible transport damages, they are not pre-installed, but
delivered in separate boxes.
Take the heating elements out of the box. Insert the heating elements from above into the openings
at the edges of the top insulation plate of the furnace, until the head of the respective heating
element rests upon the insulation.
Now take the connecting contacts out of the box and screw these to the heating elements (see
image on page 10). Any twisting of the heating elements in the process has to be avoided, as the
heating elements are extremely fragile.
After the installation has been carried out, the lid of the furnace has to be screwed down into place
carefully.
The removal of the heating elements has to be carried out in reverse order. This is absolutely
necessary for shipment or transportation.
Attention:
Heating elements are extremely fragile. The installation has to be carried out
by authorized and qualified personnel.

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connecting contacts
heating element
heating element
connecting contacts

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13. Installation of the ceramic air duct
The installation of the ceramic air duct is carried out with the lid of the Calidia Sintec 770 screwed
tight. To install the ceramic air duct loosen the two screws in the middle of the furnace lid. emove
the protection against contact metal plate. Insert the included ceramic tube into the hole, which is
located in the middle of the furnace lid underneath the protection against contact metal plate, until
the upper rim of the ceramic tube rests on the furnace lid. Then fix the protection against contact
metal plate again, with means: screw down the two screws to it´s original position in the middle of
the furnace lid (see image below).
Attention:
The ceramic air duct heats during the operation of the Calidia Sintec 770. The ceramic is
therefore equipped with a protection against contact metal plate and must not be touched
on any account.
14. Position of the furnace
The Calidia Sintec 770 is a table top model. The furnace has to be mounted in a dry room on an
even, non-inflammable base (fire protection classification A). The floor of the room has to be made
of non-inflammable material as well. The lateral minimum distance is 0.5 meter and the upper
minimum distance is 1.0 meter.
The room should be well ventilated.
protection against
contact metal plate
ceramic air duct
furnace lid

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15. Room ventilation
The Calidia Sintec 770 is delivered with a vacuum pump, that extracts the emissions of debinding
during the sintering cycle. It has to be considered, that the room needs sufficient ventilation.
16. Electric connection
The values for the power connection can be found on the specification plate of the furnace. The
electrical socket for the power connection has to be easily accessible and near the mounted furnace,
so that the connection to the socket can be interrupted fast in case of an emergency.
The furnace has to be connected to a grounded safety power socket, else the safety regulations are
not met.
The use of extension cords and multi-pole sockets is not permitted.
Before connecting the furnace to the power network, the main switch of the furnace has to be in
the „off“ position (see image below).
Make sure, that the available power network contains the correct voltage. The power cord is located
on the back side of the furnace (see image on page 13).
Work on the electrical system may only be executed by authorized specialized personnel.
main switch in „off“ position

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17. Connecting the vacuum pump
To avoid possible transport damages the vacuum pump of the Calidia Sintec 770 is delivered
unfilled. Therefore please fill the vaccum pump before the initial operation with the provided oil.
Please make absolutely sure to fill the complete provided quantity into the vaccum pump.
power cord
S 32 connection remote maintainance PLC
16 A safety fuse
mode switch for remote maintainance
socket
for vacuum pump
vacuum pump

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To fill the vacuum pump, please open the big blue screw cap, on top of which also the exhaust cap
is located, and fill the oil into the opening (see image below).
Connect the electric cord of the vaccum pump to the correspondingly labeled socket on the back
side of the Calidia Sintec 770 (see image on page 15).
After filling the vacuum pump, please close the blue screw cap again.
Before the Calidia Sintec 770 can be operated, the exhaust cap, which is located on the blue screw
cap, has to be removed (see image above). During operation of the furnace this cap must not be
closed. Please check before each sintering process, that the exhaust cap is removed.
Before the Calidia Sintec 770 can be operated, also the toggle switch of the vacuum pump has to
be switched into position „I“. During operation it has to be made sure, that the toggle switch is
always kept in position „I“ (see image below).
inspection glass oil level
screw cap for filling
exhaust cap
toggle switch va
cuum pump

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Please check necessarily before each sintering process inside the Calidia Sintec 770 the oil level
inside the vacuum pump. The oil level can be checked through the inspection glass in the vacuum
pump and always has to be in between the markings Min and Max (see image on page 14).
Connect the vaccum hose to the access labeled „Vacuum“, which you find on the back side of the
Calidia Sintec 770 as well (see image below).
Please observe and follow the instruction labels fixed on the vacuum pump absolutely.
18. Connecting the argon gas
The Calidia Sintec 770 may only be operated with commercially available argon 4.6.
To connect the argon bottle you need a manometer, that has two gauges for pressure reading in
bar. The usual mountings for gas-shielded welding with a manometer in bar and a manometer with
flow volume in liters are not applicable and are not allowed. We recommend the purchase of a
connection kit from Whitepeaks Dental Solutions.
Connect the manometer with the lateral screwed connection to the argon bottle (see image on page
16). Then connect the 6mm connection hose to the access labeled „Argon“, which you find on the
back side of the Calidia Sintec 770 (see image above).
Open the screw cap of the argon bottle. Open the upper small screw cap on the manometer
completely. egulate the pressure at the second manometer with help of the lower big screw cap
to in between 7 bar and 8 bar (see image on page 16).
connections for:
argon gas
compressed air
vacuum tube

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19. Connecting the compressed air
The Calidia Sintec 770 should be connected to the compressed air system (compressor).
The Calidia Sintec 770 has a built-in compressed air pressure reduction, so that a reduction of the
compressed air before the connection to the furnace is not necessary. The pressure of the supplied
compressed air has to be in between 2.5 and 10 bar.
The hose for the compressed air has to be connected to the access labeled „Air“ on the back side of
the Calidia Sintec 770 (see image on page 15).
screw cap for
pressure control
6mm connection hose:
Connect with „Argon“ on
back side of furnace
open screw cap
completely
regulate pressure
constantly to 7-8 bar
argon bottle
with screw cap

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0. Initial operation
During the initial operation there might be a minor unpleasant odour because of burning binder
residue of the insulation material. Therefore please run a first „unloaded firing cycle“ without the
multi part CopraArgon Tray sintering device and without sintering objects.
Check all safety installations and the correct connection of the furnace to the power supply and start
the device with the preset sintering program.
Make sure, that the furnace is operated by authorized and instructed personnel only and that all
security regulations of the facility are met. After the sintering cycle has been carried out, let the
furnace cool down normally.
Should cracks occur in the insulation after the first or the following sintering cycles, this is to be seen
as normal and does not constitute a reason for a claim. The high temperatures cause strong
expansion, which leads to these cracks. Neither the operational reliability nor the longevity of the
insulation is thereby affected.
1. Instrucion manual for the controller of the Calidia Sintec 770
The Calidia Sintec 770 features a programable logical controller (PLC). This controls the preset
temperature, the rate of the heat accumulation, the holding times, the cooling phase and it controls
the operation of the additional equipment and functions (vacuum pump, magnet valves for argon
and compressed air). The functions of the controller are preset during fabrication.
Operating the furnace:
At first the furnace is switched on with the main switch.
On the illuminated touch screen the sintering program can now be accessed by selecting the
corresponding field (see image below).

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For sintering CopraSintec K please select the program „Sintec 1“ from the „Selectable Operating
Modes“ (see image on page 17). The programs „Sintec 2“ and „Sintec 3“ are not preset by the
manufacturer.
Then activate the „Start“ button (see image on page 17).
The preset program runs now automatically.
With the button „monitoring“ (see image on page 17) you can follow the complete process of the
program (see image below).
Here you also have the possibility to interrupt the process of the program with the button „Stop“
(see image above). In another window the query appears, if you really want to stop the program.
Select „yes“ to stop the program. Select „no“ to continue the program.
With the button „Configuration“ in the first menu window (see image on page 17) you can trace the
program parameters (see image below).

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With the silver buttons on the left hand side of the points „Argon Test“, „Air Test“ and „Vacuum
Test“ you can start a test of the respective system. The functionality of the respective system is
indicated by the coloured signal on the right hand side of the respective point (see image on page
18). The button „Edit Setting“ serves to change the program parameters and is protected by a
password by the manufacturer. The parameters may only be changed in agreement with and with
permission of Whitepeaks Dental Solutions. Please contact the Whitepeaks Service.
For security reasons the electrical operating current is interrupted automatically when the door of
the furnace is opened.
. Loading of the furnace
Before the initial charging of the furnace the base plate of the provided CopraArgon Tray device has
to be inserted. For this, please open the furnace and insert the base plate carefully, so that the
ceramic tube inside the furnace fits into the hole in the base plate centrically. This procedure has to
be carried out only once, the base plate remains inside the furnace.
To charge the furnace, please fill the complete quantity of provided Calidia Sintec Pearls into the
sintering bowl of the CopraArgon Tray sintering device. Embed the sintering material into the
sintering pearls. For this please observe the instructions for use of the sintering material. The
sintering objects must not touch each other or the sintering bowl, because otherwise this might
cause a fusion of the sintering objects during the sintering phase. Bridges, pontics and bar
construction parts must not be covered with sintering pearls, to avoid heat accumulation (see
instruction manual of the material).
Place the lid onto the sintering bowl. Place the sintering bowl in the center of the base plate using
the provided special pair of tongs (see image below). Then place the sintering cap with the opening
facing down over the sintering bowl. See, that sintering bowl and sintering cap are placed centrically
onto the base plate (see image on page 20).
As long as the furnace has room temperature before the sintering process, you can still touch the
sintering bowl, the lid of the sintering bowl and the sintering cap with your hands. However after
the cooling down of the sintering process the Copra Argon Tray sintering device can still be hotter
than the furnace and thus there may be the danger of being burnt. After the sintering process always
use the special pair of tongs.
special pair of tongs

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Further please see to it, that neither when inserting the base plate, nor during loading the furnace
the heating elements are touched, as this might cause a damage of the heating elements.
Only such materials may be used in the furnace, whose characteristics and fusion temperatures are
known and suitable. The necessary information can be found in the corresponding data sheets.
The furnace must not be loaded in hot condition, i.e. at temperatures of above 60°C.
For protection of the operator, the furnace has to be switched off while loading.
After loading, please close the door of the furnace gently. Start the desired preset program. The
program runs automatically as described. At the end of the program please wait, until the furnace
has cooled down to below 60°C. Only then the furnace may be opened.
The heating-, sintering- and cooling process runs fully automated inside the argon sintering furnace
Calidia Sintec 770 and lasts between 4 and 6 hours.
At the end of the preset program and after the cooling down of the furnace to below 60°C first take
off the sintering cap using the special tongs. Then take out the sintering bowl with the sintering
material.
Attention: Sintering cap, sintering bowl, lid and base plate can still be hotter than the 60°C. This
constitutes the risk of being burnt. Always use the special pair of tongs (see image on page 19) and
place the sintering cap, sintering bowl and lid onto a fire-resistant surface when removing them
from the furnace.
lid of the sintering bowl
sintering cap
sintering pearls
sintering
objects
sintering bowl
base plate
CopraArgon Tray sintering device