MIHM-VOGT HT-2/M/Zirkon-120 Installation instructions

Original Operating Manual
HT-2/M/Zirkon-120
Version 4.2.4 - 09/2017
Friedrich-List-Straße 8
D-76297 Stutensee-Blankenloch
Tel.: [phone]
www.mihm-vogt.de
EN

Page 2 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Contents
General information ..................................................................4
Limitation of liability .....................................................................4
Responsibilities of the operator .......................................................................4
Documentation ............................................................................5
Content and structure......................................................................................5
Labelling scheme for integrated text boxes and references............................5
Formatting and symbols ..............................................................6
Service address...........................................................................6
Safety .........................................................................................7
Requirements for personnel ........................................................7
Transport, packaging and storage...........................................9
Transport ....................................................................................9
Packaging....................................................................................10
Storage ....................................................................................10
Technical description................................................................11
Function ....................................................................................11
Conformity ...................................................................................12
Intended use................................................................................13
Potential misuse ..........................................................................13
Technical data............................................................................14
Operating conditions....................................................................14
Installation..................................................................................15
Installation location......................................................................15
Installation conditions ......................................................................................15
Electrical connection....................................................................16
Local installation..............................................................................................16
Rating plate ....................................................................................................17
Operation....................................................................................18
Operating elements and displays ................................................18
Switches and button functions.....................................................19
Standby screen............................................................................20
Switch on sintering oven .............................................................20
Program slot structure .....................................................................................20
Initial commissioning................................................................21
Using the door insulation.............................................................21
Sintering aids...............................................................................22
Sintering process.........................................................................22
Feeding sintering oven ....................................................................................22
Selecting and loading a heating program........................................................23
Starting/stopping a heating program ............................................................... 23
Removing the sintering dish from the heating oven ........................................ 24
Programming the heating levels......................................................................25
Programming levels S2 to S4..........................................................................26
Saving the heating program ............................................................................ 26
Linear cooling ..............................................................................27
Saving the heating program with a name........................................................27
Renaming the heating program.......................................................................28
Starting a heating program automatically........................................................29

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Special functions.......................................................................30
Sintering with ventilation..............................................................30
Preliminary drying without sintering.............................................30
Preliminary drying with sintering..................................................30
Basic settings ............................................................................31
Parameter settings ..........................................................................................31
Switching o󰀨 Sintering oven ........................................................34
RS-232 interface ........................................................................35
Care and maintenance ..............................................................43
Service programs ........................................................................43
Faults and error messages.......................................................44
Safety ....................................................................................44
Faults ....................................................................................45
Error messages in the electronics ...............................................46
Decommissioning......................................................................47
Disposal......................................................................................47
Safety ....................................................................................47
Disposal ....................................................................................47

Page 4 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
General information
General information
Limitation of liability
The content of this operating manual has been created taking the applicable
laws and standards into account.
The unit has been developed using state-of-the-art technology.

The manufacturer assumes no liability for damage resulting from:
hDisregard/non-observance of the operating manual
hIntentional misuse
hUse other than as intended
hOperation by untrained personnel
hOperation by non-professionals (to carry out maintenance work, etc.)
hTechnical modications to the unit that have not been agreed with the
manufacturer
hUse of replacement parts that have not been approved by the manu-
facturer
Responsibilities of the operator
The unit is used for commercial purposes. The operator of the unit is there-
fore subject to the statutory obligations relating to occupational safety.
In addition to the safety instructions in this operating manual, the regulations
on safety, accident prevention and environmental protection that apply to
the unit's area of application must be complied with.
In particular, the following apply:
yThe operator must be familiar with the applicable regulations on occu-
pational safety.
yThe operator must ensure that all employees who use the unit have
read and understood this operating manual.
yThe operator must also train personnel at regular intervals and inform
them of the dangers that can arise when using the unit.
yThe operator must provide personnel with the necessary protective
equipment.
yThe operator must have all safety devices checked regularly for oper-
ability and completeness.

General information
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 5
Documentation
Content and structure
This operating manual is an essential part of this unit. It contains instructions
and information on how to use the unit safely and must be available to all
users throughout the unit's service life. This operating manual is intended for
use by trained operating personnel.
Labelling scheme for integrated text boxes and references
The following safety notices are used in this manual:

Indicates an imminent danger that may cause serious physical inju-
ry or death.

Indicates a potentially dangerous situation that may cause serious
physical injury or death.

Indicates a potentially dangerous situation that may cause minor
physical injury.

Indicates a potentially harmful situation in which the product or an
object in its vicinity may be damaged.

Information or tips for easier operation.

Page 6 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
General information
Formatting and symbols
$indicates a general safety instruction
;indicates that a requirement must be met
1. indicates a step to be carried out
Âindicates the outcome of carrying out a step
yindicates a list
S1
indicates a button
Service address
Friedrich-List-Straße 8
D-76297 Stutensee-Blankenloch
Tel.: [phone]
www.mihm-vogt.de

Safety
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 7
Safety
The sintering oven is a high-temperature oven for commercial use in dental
laboratories and may only be used for sintering sinterable ceramics.
Requirements for personnel
Trained and qualied personnel who know how to use the unit and whose
specialist training, skills, experience and knowledge of the relevant regula-
tions enables them to carry out the tasks assigned to them independently
and recognise and avoid potential hazards.

Electricity!
Risk of death from electric shock.
hDo not touch live cables and components with wet hands.
hObserve the accident-prevention regulations when working with elec-
tric current.
hBefore carrying out any installation, maintenance, cleaning or repair
work, disconnect the power supply of the sintering oven and secure it
against being switched back on.

Risk of ignition!
Use of inammable and explosive materials near the oven.
hDo not operate the sintering oven near highly inammable sources.
hDo not install the sintering oven on highly inammable supporting
surfaces.

Page 8 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Safety

Risk of burns from hot surfaces!
The surfaces of the sintering oven become hot during operation.
These may cause burns if touched.
hDo not touch the housing or the oven door during operation.
hDo not reach into the heating chamber. It may still retain a high level of
residual heat from the previous heating process.
hEnsure that the sintering oven has cooled down before carrying out
maintenance, cleaning and repair work.
hWear heat-resistant safety gloves if it is necessary to carry out work on
hot components.
hUse a suitable and su󰀩ciently long pair of tongs to place the sintering
dish in the oven and remove it from the oven.

Incorrect operation!
No liability is assumed for damage that may be caused by misuse, in-
correct operation, incorrect connections or improper maintenance/repair
work carried out by untrained personnel. All warranty services are also
excluded in such cases.
The unit must not be used if it or the mains cable becomes damaged and
no longer functions correctly.
In this case contact the manufacturer immediately.
For your own safety and to increase the service life of your unit, use only
original replacement parts.
To ensure safe operation of the sintering oven, regional regulations (e.g.
accident-prevention regulations) apply in addition to the instructions in
this operating manual. The former must be made available by the opera-
tor of the unit. The safety notices on the sintering oven must be kept in a
legible condition.

This operating manual must be read and understood by each user before
working on and with the unit.
The operating manual must be kept for the specied service life of the
sintering oven.

Transport, packaging and storage
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 9
Transport, packaging and storage
Transport

Injury due to the sintering oven falling down!
Slipping/falling when lifting and carrying the sintering oven can lead to
serious injuries.
hOnly carry/hold the sintering oven at the lower edge of the housing
(base).
hAlways have at least 2 persons carry the sintering oven (max. 30 kg/
person).

Risk of injury due to oven weight!
Physical strain/back injuries due to the high inherent weight.
hHave at least two people carry/move the sintering oven together.

Transport damage!
To prevent injury to personnel and material damage:
hTransport the unit in an upright position only.
hDo not stack units on top of each other.
hDo not place any other objects on the unit.
hTransport must be as free of shaking and vibrations as possible to
prevent the unit from being damaged.
hMake sure that the unit is secured against slipping and falling during
transport.
hThe goods must be inspected for damage and loss immediately upon
receipt. Defects must be documented by the freight carrier on the
letter of consignment in order to lodge claims. Mihm-Vogt GmbH &
Co.KG assumes no liability for any damage and loss that is only found
subsequently.

Page 10 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Transport, packaging and storage
Packaging

The packaging protects the sintering oven against transport damage,
corrosion and other forms of damage. Only remove it shortly before initial
commissioning and store it in dry conditions for later reuse.
Storage

Temperature damage!
To prevent temperature damage:
hStore the unit only at temperatures between +5 and +40 °C.
hAlways store the unit in dry and dust-free conditions.
hAvoid exposure to direct sunlight.
hAvoid mechanical vibrations.

Technical description
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 11
Technical description
Function
The sintering oven is used to re sinterable ceramics.
The product to be sintered is placed in the sintering dish and set on the
support discs. The electrically powered oven door closes and the heat-up
process starts after entering the heating parameters and pressing the Start/
Stop button.
Once the heating program has ended and the sintering oven has cooled
down, the oven door opens and the nished product can be removed.
Heating chamber
The product is sintered in the heating chamber. This consists of two di󰀨erent
ceramic insulation layers and is operated using MoSi2heating elements. The
outer insulating layer is designed for temperatures up to 1200 °C; the inner
layer for temperatures up to 1700 °C.
Oven door
The oven door consists of a three-part ceramic door panel (see page 21).
A safety switch disconnects the heating current as soon as the oven door is
opened.
A slip clutch used in the drive mechanism prevents too high a contact pres-
sure between the oven door and heating chamber.
Oven housing
The oven housing consists of steel plate coated with plastic on both the
inside and the outside.
Program controller
The program controller has a nishing-time setting that can be used to spec-
ify a day and time for the program to nish. The switch-on time is calculated
automatically so that the heating process is stopped at the required time and
the sintered item can be removed.
Operating parameters and heating programs are stored in a non-volatile
memory and are retained even if the power supply fails.
The set target temperature is maintained within an accuracy of ± 1 °C.
A temperature sensor integrated into the heating chamber measures the
temperature of the chamber close to the product.
A thermocouple fail-safe prevents the sintering oven from overheating if
the temperature sensor becomes defective.

Page 12 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Technical description
Conformity
EC Declaration of Conformity according to Machinery Directive 2006/42/EC Annex II
1.A
The manufacturer / distributor
MIHM-VOGT GmbH & Co. KG
Friedrich-List-Str. 8
76297 Stutensee
Tel.: [phone]
Fax: [phone]
Email: [email protected]
hereby declares that the following
product
Product designation: Sintering oven
Make: HT-2/M/Zirkon-120
Description:
The sintering oven is a high-temperature oven for commercial use in dental laboratories and may only be
used for sintering sinterable ceramics.
corresponds to all relevant regulations of the above directive as well as the further applied directives
(below) – including their amendments applicable at the time of the declaration.
The following EU directives were applied: EMC
2014/30/EU
RoHS 2011/65/EU
The protection objectives of the Low Voltage Directive 2014/35/EU were complied with.
The following harmonised standards were applied:
EN 61010-1:2010 Safety requirements for electrical equipment for measurement,
control and laboratory use – Part 1: General requirements (IEC
61010-1:2010)
EN 61010-2-010:2014 Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 2-010: Particular requirements for laboratory
equipment for the heating of materials (IEC 61010-2-010:2014)
EN 61326-1:2013 Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 1: General requirements (IEC 61326-1:2012)
EN ISO 12100:2010 Safety of machinery – General principles for design –
Risk assessment and risk reduction (ISO 12100:2010)
The following national or international standards (or parts/clauses thereof) and specifications were
applied: –
Name and address of the person who is authorised to compile the technical documents: Gillen, Tobias
Place: Stutensee / Date: 15.9.2016
_
(Signature) Dietmar Gräbe

Technical description
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 13
Intended use
The sintering oven is a high-temperature oven for commercial use in dental
laboratories and may only be used for sintering sinterable ceramics.

No liability is assumed for damage that may be caused by misuse, in-
correct operation, incorrect connections or improper maintenance/repair
work carried out by untrained personnel. All warranty services are also
excluded in such cases.
Potential misuse
yOperation by untrained and insu󰀩ciently qualied personnel.
yUse of products that have not been approved by the manufacturer.
yUse of replacement parts that have not been approved by the manu-
facturer.
yAny use not in accordance with the declaration of conformity.
yTechnical modications to and conversions of the unit that have not
been approved by the manufacturer.

Only sintering aids/accessories/wearing parts as well as spare parts ap-
proved by Mihm-Vogt may be used.
You can nd an overview of the approved media and equipment on the
supplementary sheet in your device packaging.

Page 14 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Technical data
Technical data
Operating conditions
General information
Dimensions (W x D x H) 500 x 560 x 820 mm
Combustion chamber volume 3 dishes Ø 120 x 30 mm
Max. temperature 1650 °C
Weight 74 kg
Minimum clearance around the sintering
oven
50 mm
Connected electrical load
Voltage supply 200-240 V (10% deviation)
Frequency 50-60 Hz
Max. power consumption 3.8 kW
Protection
Device end
Customer end
16 AT
Connection to a separate electrical circuit with a 16-A circuit
breaker, type K or type Z (other types of circuit breaker depend-
ing on the country of use)
Protection class IP 20 (protection against the ingress of foreign bodies, but not
against the ingress of water)
Operating conditions
Installation area Indoors only (in dry rooms)
Temperature range +5 to +40 °C
Relative air humidity Up to 31 °C: 80%
Maximum air humidity Up to 40 °C: 50% No condensation
Height Max. 2000 m
Pollution degree 2

Installation
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 15
Installation
Installation location
The sintering oven is designed as a table-top unit. A level surface of at
least 50 cm x 60 cm that supports a load of up to 80 kg is recommended to
ensure stability.
Installation conditions
►Always install the sintering oven in dry rooms that are as dust-free
as possible and make sure that liquids cannot penetrate the unit.
► Highly inammable and combustible gases and liquids must not be
stored in the installation rooms.
► Do not place any combustible and inammable objects near the sin-
tering oven.
► Keep a distance of 50 mm around the sintering oven for su󰀩cient
cooling.

Tipping loads!
Supporting surface with an insu󰀩cient load-bearing capacity.
When installing the sintering oven, make sure that the supporting sur-
face has a su󰀩cient load-bearing capacity.

Risk of injury due to oven weight!
Physical strain/back injuries due to the high inherent weight.
hHave at least two persons carry/move the sintering oven together
(max. 30 kg load bearing capacity/person).

Risk of overheating!
Overheating due to blocked air inlets.
hMake sure that the air vents remain clear on all sides.
1. Align the supporting surface horizontally.
2. Place the sintering oven on the supporting surface.
$Make sure the surface is non-slip.
$Lift and carry the sintering oven only at the unit base.

Page 16 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Installation
Electrical connection
Local installation
;The sintering oven requires its own electrical circuit.
;The building's electrical circuit must have a type-K or type-Z circuit
breaker with a rated current of at least 16 A (other types of circuit
breaker depending on the country of use).
;An additional residual-current circuit breaker (designed for 30 mA
tripping current) must be installed.
;To ensure electrically safe operation, the sintering oven requires a
protective earth conductor to be connected to the power socket.
;When selecting the installation location, ensure that the accompany-
ing mains cable is 2.0 m long. Extending the cable is not permitted.
The supply voltage must be within the rated voltage range of 200-240
V.

Electricity!
Risk of death from electric shock.
hDo not touch live cables and components with wet hands.
hObserve the accident-prevention regulations when working with elec-
tric current.
hOnly connect the unit to a voltage supply that matches the specica-
tions on the rating plate.

Release of pollutants!
hSuitable respiratory protection must be worn when handling insulating
material.
hIf necessary, an extraction system must be installed.

Installation
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 17
Rating plate
10
1
8
234
9
5
11
76
1 Machine type/designation 7 QR code
2 Operating voltage 8 Serial number
3 Mains frequency 9 Year of manufacture
4 Power 10 Manufacturer's details
5 CE mark 11 RoHS mark
6 Reference number Mihm-Vogt

Page 18 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Operation
Operation
Operating elements and displays
The microprocessor-controlled program controller enables a wide range of
heating curves to be run through with high precision. The unit is operated via
a membrane keyboard and menus displayed on an LCD screen.
The program controller has the following operating elements:
45
6
789
10 11
3
21
1 Display 6 Mains switch
2 Heating levels 7 Save button
3 Numeric keypad 8 Load button
4 Start/Stop button 9 Function button
5 Finishing time button 10 Heating phase LEDs
11 Additional function: Open oven
door

Operation
Version4.2.4-09/2017 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Page 19
Switches and button functions
Function
I
0
Mains switch
Start
Stop
Starts/stops the current heating program
Loads an existing program from the memory
Saves a created program in the memory
Setting the nishing time
F
Function button for setting the parameters (see graphic „Parameter set-
tings“ on page 31)
0
Additional function: Open oven door
This additional function is only active if the current oven temperature is less
than the set temperature in level 4.

Page 20 Operating Manual Sintering Oven HT-2/M/Zirkon-120 Version4.2.4-09/2017
Operation
Standby screen
1 Manufacturer
2 Information on hardware and software status
3 Serial number of oven
1 Heating rate in °C/min. (°F/min.)
2 Set nal temperature of level
3 Set holding time of level
Switch on sintering oven
1. Connect the voltage supply.
2. Switch the sintering oven on at the mains switch.
ÂThe current temperature of the oven is displayed after approximately
3 seconds.
ÂThe oven door opens automatically.
Program slot structure
1...14 No special function
15...20 Ventilation heating
21...25 Preliminary drying
26...30 No special function
31 Service A - Temperature control
32 Service C - Heating chamber cleaning
33 Service E - Heating element regeneration
min
min
DOES0041
168
49686
OFEN-SN:
STEUER.-SN:
MIHM - VOGT
HT/03c
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