MIHM-VOGT KM User manual

MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
Operating Instructions
for
MIHM-VOGT Laboratory Furnace
with Controller P6
Table of contents:
1. Delivery form 2
2. Use area 2
3. Technical data 3
4. Safety warning 3
5. Installation and electrical connection 4
6. Start-up 4
6.1 Start-up 4
6.3 Service of the controller 5
6.3.1 Function keys 5
6.3.2 Setting of individual programs 5
6.3.3 Examples of programming 7
6.3.4 Setting of individual text 11
6.3.5 Starting of a program 11
6.3.6 Start of a program with the delay start feature 12
6.3.7 Optional step (Final temperature) 12
6.3.8 Continuous operation of the rear sockets in case of shock-heat investments 14
7. Special functions 16
7.1 Information at starting 16
7.2 Function key 'F' 16
7.3 Correction program 18
7.4 Cooling function with exhaust blower / circulating air (version 1.20 and later) 18
7.5 Controller initialisation 19
7.6 How to connect exhaust blowers, catalyzers and/or fume extraction hoods 19
8. Error signals 20
8.1 Error messages of the electronics 20
8.2 Further errors and their causes 21
9. Maintenance and care 23
9.1 Care 23
9.2 Maintenance 23
9.2.1 How to change the thermocouple 24
9.2.2 How to change the heating muffle 24
9.2.3 How to change the door-stone 24
9.2.4 How to replace the controller 24
9.2.5 How to replace the power element of the 2nd heating circuit
(only for furnace types BL, TL) 25
9.2.6 How to change the air circulation fan 25
9.3 Warranty 25
9.4 Circuit diagrams 27
Index 28

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Dear customer,
We thank you for your decision to buy a high-quality MIHM-VOGT furnace. It will support you with
your work for many years, because it was developed and built using the latest technology.
Improper use can cause damage, therefore we ask you to carefully read through this working
instructions and to follow it.
The CE-sign{XE "CE-sign" }confirms that MIHM-VOGT laboratory furnaces
correspond to the governing regulations of the EC guidelines.
1. Delivery form{ XE "Delivery form"}
Each laboratory furnace is delivered with a P6-controller, a ceramic tray, a PtRh-Pt
thermocouple and an exhaust tube.
The furnace can also be equipped with the folling accessories:
• Exhaust blower DG2 (Art. No. 7202)
• Catalyzer KN (Art. No. 7300)
• Catalyzer for shock-heat investments KN2 (Art. No. 7320)
Spareparts{ XE "Spareparts" } Order No.:
Furnace type: KM SL GL BL TL
Ceramic tray{XE "Ceramic tray" }20020 30020 40020 50020 50020
Thermocouple{XE "Thermocouple" }
20100 30110 30110 50110 30110
Door filling{XE "Door filling" }
(without ventilator)
20301 30301 30301 30301 30301
Door filling{XE "Door filling" }(with
ventilator)
20351 30301 30301 30301 30301
Heating muffle{XE "Heating muffle"
}(without ventilator)
20010 30010 40010 50010 60010
Heating muffle{XE "Heating muffle"
}(with ventilator)
20015 30015 40015 50015 60015
2. Use area{ XE "Use area" }
The laboratory furnace is used to eliminate wax and to preheat the dental casting ring. The
heating muffle is made of high-quality heating wire{XE "Heating wire" }and is heated evenly
on four sides. The low electric burden guarantees a high lifespan of the heating wire. A high-
quality inner isolation ensures low power consumption{XE "Power consumption" }.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
At the rear of the furnace two sockets are provided allowing connection of an exhaust blower{
XE "Exhaust blower" }, a catalyzer{XE "Catalyzer" }, or a fume extraction hood{XE "Fume
extraction hood" }.
The furnace door is equipped with a switch that interrupts the heating current when opening the
door. The P6-controller is equipped with a thermocouple circuit breaker so that the furnace does
not overheat if the thermocouple is defective. At the rear of the furnace the furnace type is
imprinted on a label.
3. Technical data{ XE "Technical Data" }
Ofentyp: KM SL GL BL TL
Outside dimensions: 40 x 48 x 40 43 x 58 x 45 48 x 58 x 52 54 x 60 x 55 54 x 65 x 55
w x h x d (cm) 40 x 48 x 45 43 x 58 x 51 48 x 58 x 59 54 x 60 x 62 54 x 65 x 62
Heating chamber:
w x h x d (cm)
15 x 10 x 17 18 x 11 x 19 20 x 11 x 25 25 x 11 x 28 25 x 17 x 28
Capacity: 4 pcs. of 6x 4 pcs. Ø 8 cm 6 pcs. Ø 8 cm 9 pcs. Ø 8 cm 18 pcs. Ø 8 cm
Max. Temperature: 1150 °C 1150 °C 1150 °C 1150 °C 1150 °C
1100 °C 1100 °C 1100 °C 1100 °C 1100 °C
Power rating: 1.6 kilowatts 1.8 kilowatts 2.3 kilowatts 3.5 kilowatts 4.5 kilowatts
1.6 kilowatts 2.1 kilowatts 2.6 kilowatts 3.7 kilowatts 4.8 kilowatts
Voltage: 230 V~ 230 V~ 230 V~ 230/400 V~ (2/N) 230/400 V~ (2/N)
Preheating times: 60 min.
900 °C
90 min.
1050 °C
60 min.
800 °C
90 min.
1100 °C
60 min.
800 °C
90 min.
1100 °C
60 min.
800 °C
90 min.
1100 °C
60 min.
800 °C
90 min.
1100 °C
Weight: 32 kg 63 kg 75 kg 90 kg 100 kg
36 kg 70 kg 80 kg 95 kg 105 kg
furnaces with circulating air
4. Safety warning{ XE "Safety warning" }
• The MIHM-VOGT laboratory furnace is exclusively designed for the elimination of wax and for
the preheating of casting rings. We are not liable for damages due to another use. The sockets at
rear are exclusively intended for the connection of a MIHM-VOGT fume extraction hood, a
MIHM-VOGT exhaust blower, or a MIHM-VOGT catalyzer.
• The MIHM-VOGT laboratory furnace must be serviced exclusively by technicians who know
the content of this working instructions. Labels and stickers on the laboratory furnace must
always be maintained in legible condition. They must not be removed.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
• The MIHM-VOGT laboratory furnace should be set up only in dry areas and should not get in
contact with liquids. In the area of the furnace, furniture and other objects cannot consist of
explosive, combustible or easily inflammable materials. In the installation area of the furnace, no
easily inflammable or combustible gases or liquids are allowed to be stored.
• Modifications of the MIHM-VOGT laboratory furnace can only be made after prior written
agreement from us. We are not liable for damages caused by your modifications. Before every
maintenance, the appliance is to be turned off and the power-supply plug is to be pulled out.
• The furnace must always be connected to a separate circuit protected by a 15/16 Amp fuse.
• The hot furnace door should only be touched at the grip; the hot muffles should only be touched
with sufficiently long tongs. Because of the wax fumes and the steam from casting rings, the
furnace should be equipped with an exhaust blower or catalyzer and placed under a fume
extraction hood. The fumes are to be extracted to the outside.
• The ceramic tray is to be used to protect the heating muffle. The furnace must never be used
without the ceramic tray. Cracked or damaged ceramic trays must be replaced immediately.
• The transportation protection of the heating muffle must be taken off before the first use.
5. Installation{ XE "Installation" } and electrical connection{ XE
"Electrical connection" }
The laboratory furnace is to be positioned in a dry area in accordance with the safety warnings,
and it is to be connected to a separated circuit secured with 15/16 Amp. The transportation
protection{XE "Transportation protection" }is to be removed from the heating muffle. The
laboratory furnaces type KM, SL and GL are to be connected to an earthed plug 230 V, the
laboratory furnaces type BL and TL are to be connected to a CEKON plug 230/400 V AC. If
necessary, the exhaust blower{XE "Exhaust blower" }DG2 or the catalyzers{XE "Catalyzer" }
KN / KN2 are installed on the furnace rear. They are to be connected into the socket marked
'Gebläse'.
6. Start-up{ XE "Start-up" }
6.1 Start-up{XE "Start-up" }
Prior to the first use, the muffle must be heated up on 1050°C for 90 minutes. This way, the
necessary oxide layer is formed on the heating wire.
6.2 Loading{ XE "Loading" }
The casting muffles are to be put on the ceramic tray. Metal muffle rings should not come in
contact with the lateral walls.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
6.3 Service{ XE "Service:Controller" } of the controller{ XE "Controller" }
The time-schedule controller is equipped with the most modern microprocessor technology, that
allows the heating process to go through a wide variety of programs with precision. The furnace
is programmed on a menu-driven keyboard{XE "Keyboard" }with LCD indicators. The
following functions{XE "Functions" }are available:
F
0
7
4
1
8
5
2
9
6
3
6.3.1 Function keys
Start/Stop key{ XE "Key:Start/Stop" }: {XE "Start/Stop key" }{ XE "Load
program key" }to start or stop the current program
Load program key{ XE "Key:Load program" }: to load a program from the
memory
Memory key{ XE "Key:Store program" }{ XE "Memory key" }{ XE "Store
program key" }: to store a program entered into memory
Casting time key{ XE "Key:Casting time" }: {XE "Casting time key" }to
set the casting time
Function key{ XE "Key:F" }{ XE "Function key" }: to set the parameters
... Numeric keys{ XE "Numeric keys" }{ XE "Key:1 ... 9" }: to enter the
values desired
... Program step keys{ XE "Program step keys" }{ XE "Key:S1 ... S4" }: to
activate the cursor
6.3.2 Setting of individual programs { XE "Individual programs" }{ XE
"Program:Individual" }
Function
key
On/Off switch
Load
program
key
Memory key Casting
time key
Start/Stop key
Numerical
keys
Program step
keys
LCD display

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Immediately after switching on the furnace, a display appears indicating information on the
system. Within a few seconds the stand-by display appears instead{XE "Stand-by display" }{
XE "Stand-by" }:
Example{XE "Example" }:
°C/min °C min
3 1050 30 STNDBY P01
S4
0 0 0 TEMP. 22
S3
6 520 10 MO 12:13
S2
4 280 30 MO 18:32
S1
On the left side, the furnace program is indicated where lines 'S1' to 'S4' stand for the according
steps 1 to 4 to be programmed accordingly. In the column '°C/min' the heating speed is
determined, in '°C' the temperature is set, and in the column 'min' the delay of the according step
is indicated. The furnace is heated in up to four temperature steps. It is possible to heat and cool
down within one program{XE "Program" }. There are no preset programs when leaving the
factory.
Individual programs are entered{XE "Programming" }as follows:
1.) Choosing of a program number{XE "Program number" }/ Loading{XE
"Program:Loading" }of a porgram:
After activating the load program key, the display "load program" appears. The cursor is set to
the field "program number". Now the program number desired is either entered by the numeric
keys or searched by scrolling down using the 'S4' key.
LOAD PROGRAM P13
S4
S3
YES
S2
NO
S1
Pressing the 'S2' key activates the loading process = 'yes', then the stand-by display appears. To
quit the menu earlier, press 'S1' = 'no'.
2.) Entering of a program{XE "Program:Entering" }:
On pressing 'S1' the cursor{XE "Cursor" }shows up in the column '°C/min'. The numeric keys
('0' - '9') are used to enter the heating speed{XE "Heating speed" }. Then the cursor moves on to
the column '°C'. Here a 4-digit holding temperature{XE "Holding temperature" }has to be
entered (e.g.: '0280'). If only a 3-digit value (or less) is entered, 'S1' has to be pressed to confirm
it and to move the cursor to the column 'min'. There the holding time is determined{XE
"Holding time" }.
Steps 'S2' to 'S4' are programmed in the same way. If one step is not required, set all values in
this line on '0'.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
°C/min °C min
3 1050 30 STNDBY P01
S4
0 0 0 TEMP. 22
S3
6 520 10 MO 12:13
S2
4 280 30 MO 18:32
S1
IMPORTANT: Steps 'S1' to 'S3' may be set to '0'; however, in step 'S4' a certain temperature
must be entered. Choosing '0' as heating speed ('°C/min'), the furnace heats up at maximum
energy (non-linear{XE "Non-linear" }).
3.) Storing of a program:{XE "Program:Storing" }
After entering a program via the keys 'S1' to 'S4', the memory key is to be pressed to store the
according data. The display indicates the following menu:
STORE PROGRAM P13
S4
S3
YES
S2
NO
S1
Data is stored by pressing the 'S2' key = 'yes'. Pressing 'S1' = 'no' stops the menu, and the stand-
by display appears again.
The program is stored under that program number which was entered on loading.
6.3.3 Examples of programming{ XE "Examples of programming" }
Example of programming{ XE "Example" }: 3-step heating{ XE "Examples of
programming:3-step heating " }
Heating speed Temperature Holding time
°C/min. °C Min.
Step 4: 0 850 60
Step 3: 0 0 0
Step 2: 6 540 15
Step 1: 4 280 45
1.) Selection of the program number (e.g. No.
'01'): Press the load program key{XE
"Load program key" }{ XE "Key:Load
program" }
and enter the program number '01'.
Confirm by pressing 'S2' = 'yes'.
Time
°C
850
280
45 min.
15 min.
540

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
LOAD PROGRAM P01
S4
S3
YES
S2
NO
S1
2.) Pressing the 'S1' key{XE "Key:S1 ... S4" }lets the cursor show up in the field '°C/min.' =
heating speed. Enter '4' using the numeric keys. Then, the cursor automatically goes on to
the field '°C' = temperature. Enter '0280' here; the cursor automatically goes to the field
'min' = holding time. Here '45' is to be entered. (In case just '280' was entered in the
temperature field, this value has to be confirmed with the 'S1' key.)
°C/min °C min
0 0 0 STNDBY P01
S4
0 0 0 TEMP. 22
S3
0 0 0 MO 12:13
S2
4 280 45 MO 15:45
S1
3.) Steps 'S2' and 'S4' are set in the same way. Since in this example step 'S3' is not required, all
values are set to '0' in this line.
°C/min °C min
0 850 60 STNDBY P01
S4
0 0 0 TEMP. 22
S3
6 540 15 MO 12:13
S2
4 280 45 MO 18:32
S1
4.) The program is stored by pressing the memory key{XE "Memory key" }{ XE "Key:Memory"
},
confirm with 'S2' = 'yes'.
STORE PROGRAM P01
S4
S3
YES
S2
NO
S1
Example of programming{ XE "Examples" }: Shock heat{ XE "Examples of
programming:Shock heat" }
Heating speed Temperature Holding time
°C/min. °C Min.
Step 4: 0 850 0
Step 3: 0 0 0

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Time
°C
850
Step 2: 0 0 0
Step 1: 0 0 0
1.) Selection of a program number, for example No. 2: Press the load program key{XE "Load
program key" }{ XE "Key:Load program" }
and enter the Program number '02'. Confirm with 'S2' = 'yes'.
LOAD PROGRAM P02
S4
S3
YES
S2
NO
S1
2.) Pressing the 'S4' key{XE "Key:S1 ... S4" }
lets the cursor show up in field '°C/min.'
= heating speed. Enter '0' using the
numeric keys or press 'S4' to move to the
next field '°C' = temperature. Enter
'0850' here; the cursor automatically
goes to the field 'min' = holding time.
Here '0' is to be entered. Alternatively, the 'S4' key may be used to move to the next field.
°C/min °C min
0 850 0 STNDBY P02
S4
0 0 0 TEMP. 22
S3
0 0 0 MO 12:13
S2
0 0 0 MO 13:05
S1
5.) The program is stored by pressing the memory key{XE "Memory key" }{ XE "Key:Memory"
},
then confirmed with 'S2' = 'yes'.
STORE PROGRAM P02
S4
S3
YES
S2
NO
S1
Example of programming{ XE "Example" }: 3-step heating with cooling step{ XE "Examples
of programming:3-step heating with cooling step" }

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Heating speed Temperature Holding time
°C/min. °C Min.
Step 4: 0 430 60
Step 3: 0 1050 60
Step 2: 6 540 15
Step 1: 4 280 45
1.) Selection of a program number (e.g.
No. '03'): Press the load program key{
XE "Load program key" }{ XE
"Key:Loading" }
and enter the program number '03'.
Confirm by pressing 'S2' = "yes".
LOAD PROGRAM P03
S4
S3
YES
S2
NO
S1
2.) Pressing the 'S1' key{XE "Key:S1 ... S4" }lets the cursor show up in the field '°C/min.' =
heating speed. Enter '4' using the numeric keys. Then, the cursor automatically moves on to
the field '°C' = temperature. Enter '0280' here; the cursor automatically goes to the field
'min' = holding time. Here '45' is to be entered. (In case just '280' was entered in the
temperature field, this value has to be confirmed by pressing the 'S1' key.)
°C/min °C min
0 430 60 STNDBY P03
S4
0 1050 60 TEMP. 22
S3
6 540 15 MO 12:13
S2
4 280 45 MO 20:24
S1
3.) Steps 'S2', 'S3' and 'S4' are set in the same way.
4.) The program is stored by pressing the memory key{XE "Memory key" }{ XE "Key:Memory"
}
and confirmed with 'S2' = 'yes'.
Time
°C
1050
280
45 min.
15 min.
60 min.
60 min.
540

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
STORE PROGRAM P03
S4
S3
YES
S2
NO
S1
6.3.4 Setting of individual text { XE "Individual text" }{ XE "Setting of text" }
In addition to the program stored, individual text may be entered and stored as well. Therefor the
memory key is pressed to open the store program display (see 6.3.2):
STORE PROGRAM P13
S4
INDIVIDUAL TEXT
S3
YES
S2
NO
S1
The 'S3' key lets the cursor show up in the according line. By pressing the 'Start/Stop' key, the
letters 'A', 'B', 'C', ... appear in alphabetical order. The letter needed is confirmed with 'S3'. This
process may be continued until the text desired is complete (max. 19 letters). Figures are entered
via the numeric keys '0' ... '9'.
These data are stored by pressing the 'S2' key = 'yes'. By pressing 'S1' = 'no' the menu is quit, and
the stand-by display appears again.
6.3.5 Starting of a program { XE "Program:Start" }
After pressing the 'Start/Stop' key to start the process, the stand-by display appears. The line 'S4'
now shows the word 'RUN' instead of 'STNDBY'{XE "Process run" }.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
°C/min °C min
0 750 60 RUN P09
S4
0 0 0 TEMP. 22
S3
6 520 10 MO 12:13
S2
4 280 30 MO 18:32
S1
Flashing or illumination of the stage-LCD shows that a process is running. During the process,
the stages passed are deleted when finished. The process may be stopped by pressing the
'Start/Stop' key.
The current temperature is indicated in line 'S3'. Line 'S2' shows the actual time (and day), and
line 'S1' indicates the expected end of the program{XE "Finishing time" }.
6.3.6 Start of a program with the delay start feature{ XE "Delay start feature" }
First, the program desired is loaded via the load program key (see 6.3.3). When pressing the
casting time key, the following information appears on the display{XE "Casting time" }{ XE
"Autostart" }:
AUTOST.{XE
"Autostart"
}.P13
S4
TEMP. 22
S3
DO 12:13
S2
FR 01:25 FR 07:30
S1
││
Process start Casting time
Pressing the 'S1' key allows to determine the casting time desired (= program end). The day{XE
"Enter:Day" }is set at first using the numeric keys (Monday = 1, Tuesday = 2, Wednesday = 3,
... Sunday = 7). Then the program end desired{XE "Enter:Finishing time" }{ XE "Enter:Casting
time" }(hh:mm) is entered via the numeric keys. In the left column of line 'S1' the display then
shows the program's start time {XE "Start time" }. The delay start feature is now activated; no
more keys are to be pressed.
6.3.7 Optional step{ XE "Final temperature program changes" } (Final
temperature{ XE "Optional step" })
If casting muffles for different final temperatures, e.g. for 750 C and 850 °C, are to be preheated
at the same time, set the temperature for the 3rd step on 750 °C as described under 6.3.3. The
program is changed by a long pressure on the 'S4' key after completion of the first program. The
temperature in the 3rd step can now be raised, e.g. to 850 °C. The controller automatically
repeats the last heating step{XE "Heating step" }and then heats up to the new temperature set
(850 °C). The final temperature may be changed as often as required. The original parameters of
the program remain untouched.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Alternatively it is possible to extend the according holding time{XE "Holding time" }of the last
step which is recommended especially in case of shock-heat investments{XE "Shock-heat
investments" }. Therefor the furnace is heated up as follows:

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Example{XE "Example" }:
0 750 0 RUN P09
S4
0 0 0 TEMP. 22
S3
0 0 10 MO 12:13
S2
0 0 30 MO 12:55
S1
An acoustic signal is audible as soon as the final temperature of 750 °C is reached. Now the
shock-heat muffles are placed into the furnace. By pressing the 'S4' key the holding time is
extended as follows:
0 750 60 RUN P09
S4
0 0 0 TEMP. 22
S3
0 0 10 MO 12:13
S2
0 0 30 MO 12:55
S1
The 60 minutes entered start running now. When finished, an acoustic signal sounds again, and
the muffles are ready to be cast.
WARNING: Do not interrupt the program by pressing the „Start/Stop“ key!
6.3.8 Continuous operation{ XE "Continuous operation" } of the rear sockets in
case of shock-heat investments{ XE "Shock-heat investments" }
A P6-controller with software version 02.55 and later (see information of the controller as per
7.1 of these working instructions) allows to individually program the sockets on continuous
function when using shock-heat investments.
It is sensible to use an exhaust blower{XE "Exhaust blower" }, a catalyzer{XE "Catalyzer" }or
a fume extraction hood{XE "Fume extraction hood" }therefor ensuring that these appliances are
running as long as the muffles are in the furnace. Especially if a catalyzer is used, this function
guarantees that it reaches its optimum operating temperature{XE "Operating temperature" }.
Continuous operation{XE "Continuous operation" }of the sockets at the P6-controller is
activated, when storing a program (see topic 6.3.2 of the P6 instructions), by a pressure on the
'S4' key. The display then indicates 'Shock heat':
STORE PROGRAM S13
S4
S3
SHOCK HEAT YES
S2
NO
S1
This function may be deactivated by another pressure on the 'S4' key.
Data is stored by pressing the 'S2' key = 'yes'. Pressing 'S1' = 'no' stops the menu, and the stand-
by display appears again.

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
Time
°C
850
Example of programming{ XE "Examples" }: Shock heat program with continuous operation
of catalyzer (or exhaust blower or fume extraction hood)
Heating speed Temperature Holding time
°C/min. °C Min.
Step 4: 0 850 0
Step 3: 0 0 0
Step 2: 0 0 0
Step 1: 0 0 0
1.) Selection of a program number, for example No. 2: Press the load program key{XE "Load
program key" }{ XE "Key:Load program" }
and enter the program number '02'. Confirm with 'S2' = 'yes'.
LOAD PROGRAM P02
S4
S3
YES
S2
NO
S1
2.) Pressing the 'S4' key{XE "Key:S1 ... S4" }
lets the cursor show up in field
'°C/min.' = heating speed. Enter '0'
using the numeric keys or press 'S4' to
move on to the next field '°C' =
temperature. Enter '0850' here; the
cursor automatically moves to the field
'min' = holding time. Here '0' is to be
entered. Alternatively, the 'S4' key may
be used to move to the next field.
°C/min °C min
0 850 0 STNDBY P02
S4
0 0 0 TEMP. 22
S3
0 0 0 MO 12:13
S2
0 0 0 MO 13:05
S1
3.) After pressing the memory key

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
the 'Store program display' appears. A pressure on 'S4' provides permanent tension at the
sockets so that the appliances connected, e.g. a catalyzer, run continuously when the
furnace is switched on. The display indicates 'Shock heat'. This function may be deactivated
by another pressure on 'S4'.
STORE PROGRAM S02
S4
S3
SHOCK HEAT YES
S2
NO
S1
'S2' = 'yes' stores the program.
7. Special functions{ XE "Special functions" }
7.1 Information{ XE "Information:Start time" } at starting { XE "Start time" }
When switching on the furnace, the following information is shown on the P6-controller{XE
"Controller information" }for 3 seconds:
MIHM-VOGT S4
V02.57 S3
P6B-SN: 43843/1
S2
DOSB-SN 4240/7
S1
Line 'S3': Number of the software version{XE "Software version" }(here version 02.57)
Line 'S2': Serial number{XE "Serial number" }of the furnace (here No. 43843) and
parameters of the controller (here controller parameter{XE "Controller
parameters" }1 = KMP6, 2= SLP6 ... TLP6)
Line 'S1': Serial number of the electronics (here No. 4240) und hardware version (here No. 7)
In case of older P6-controllers, this information may differ slightly. If so, please contact MIHM-
VOGT to get the according details.
7.2 Function key{ XE "Function key" }{ XE "Key:F" } 'F'
Function key 'F' is used to adjust the individual requirements of your P6-controller.
ENGLISH
S4
SOUND ON
S3
THU 12:13
S2
NEXT
S1
Key 'S4': With 'S4' the display language is changed{XE "Language" }.
Key 'S3': An acoustic signal indicates the end of the program. If you do not want this
acoustic signal in general, you may turn it off by pressing the 'S3' key. (The

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
acoustic signal{XE "Acoustic signal" }also stops when opening the door of the
furnace).
Key 'S2': With 'S2' the integrated clock{XE "Clock" }{ XE "Time" }is set where Monday =
1, Tuesday = 2 ... Sunday = 7. The current time is to be altered manually with the
summer/winter time switch{XE "Summer time" }{ XE "Winter time" }!
Key 'S1': 'S1' is used to go on further:

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
AIRDROME TEMP{
XE "Airdrome temp" }
600
S4
BLOWER TEMP{XE
"Blower temp" }
600
S3
NETWORK{XE
"Network" }
OFF
S2
NEXT
S1
Key 'S4': Airdrome temperature{XE "Airdrome temp" }{ XE "Airdrome temp:'Dunst'" }{ XE
"Airdrome temp:Fumes" }at the socket marked 'Dunst' [standard = 600 °C]
Key 'S3': Blower temperature{XE "Blower temp" }{ XE "Blower temp:'Gebläse'" }{ XE "Blower" }
at the socket marked 'Gebläse' [Standard = 600 °C]
Key 'S2': This key is only needed if the controller is furnished with an interface{XE
"Schnittstelle" }to be connected to a network.
Key 'S1': This key is used to quit the menu and to store the settings made.
ATTENTION (Regarding software version 02.54 or before): If shock-heat investments are used
and an exhaust blower, a catalyzer or a fume extraction hood are connected, the shutoff
temperature of the sockets 'Dunst' (= exhaust) or 'Gebläse' (= ventilator) should be
approximately 20 °C higher than the programmed final temperature for the shock-heat
investment (example: If the final temperature for shock-heat investments is 850 °C, the shutoff
temperature should be at 870 °C). Thus, the above mentioned appliances run continously when
the furnace is switched on.
7.3 Correction program{ XE "Correction program" }
The calculation of the start time (casting time function{XE "Casting time" }for the delay start
feature{XE "Delay start feature" }is based on an average tension of 230V. Start and finishing
times may vary according to local voltage{XE "Local voltage" }{ XE "Voltage" }. Severe
variations (of more than 30 minutes) may be adjusted by means of the correction program.
The correction program is accessed by loading the program '00'{XE "Program \'99'\" }{ XE
"Program \'00'\" }. In case of older P6-models (software version 01.xx), the correction program
is stored as No. '99'. The correction program itself may not be altered.
ATTENTION: The complete program lasts approximately 8 hours!
7.4 Cooling function{ XE "Cooling function" } with exhaust blower{ XE "Exhaust
blower" } / circulating air{ XE "Circulating air" } (version 1.20 and later)
At the end of the program, pressing the 'S2' key activates the exhaust blower, if connected, and
pressing the 'S1' key switches on the air circulation fan for a fast cooling process (only possible
in case of furnaces with integrated air circulation).
DOOR OPEN S4
TEMP. 800
S3

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
BLOWER ON
S2
CIRCULATING AIR ON
S1
7.5 Controller initialisation{ XE "Controller initialisation" }{ XE
"Controller:Initialisation" }
In order to guarantee optimal performance{XE "Controller performance" }with the various
laboratory furnaces, different parameters are preset {XE "Controller parameters" }. The controller
is reset to factory settings with the following keystroke, and the according parameters are
activated:
The furnace must indicate 'STNDBY':
• Keystroke: 'F' '8' '5' '4' '0' parameters of furnace types KM
• Keystroke: 'F' '8' '5' '5' '0' parameters of furnace types SL .. TL
ATTENTION: The controller parameters may not be altered without agreement of MIHM-
VOGT, Karlsruhe/Germany!
7.6 How to connect exhaust blowers, catalyzers and/or fume extraction hoods{
XE "Connection:Exhaust blower" }{ XE "Connection:Catalyzer" }{ XE
"Connection:Fume extraction hood" }
a.) Connection of an exhaust blower{XE "Exhaust blower" }:
The exhaust blower type DG2{XE "DG2" }is inserted into the designated space at the back and
fixed at the rear sheet metal with the according screws. If an exhaust pipe is connected, this has
to be removed. Connect the plug at the rear socket marked 'Gebläse'.
If required, the exhaust blower can be extended up to approx. 3 - 5 m using conventional metal
pipes (with a diameter of 80 mm at least). Please see to it that the air resistance is kept low
(make only a few angles and do not use flaps) since otherwise the air flow in the blower might
change its direction and, thus, suction stops.
In case of shock-heat investments{XE "Shock-heat investments" }, please ensure that the blower
runs throughout the complete preheating process of the casting muffles. If required, the shutoff
temperature of the sockets have to be changed (see point 6.3.8 and 7.2).
b.) Connection of a catalyzer{XE "Connection:Catalyzer " }{ XE "Catalyzer" }:
The adapter{XE "Adapter" }supplied for the catalyzer type KN{XE "KN" }or KN2{XE "KN2" }
is inserted into the designated space at the back and fixed at the rear sheet metal using the
according screws. If an exhaust pipe is connected, this has to be removed. The suction pipe of
the catalyzer has to be attached to the adapter and secured with the counter screw. Connect the
plug at the rear socket marked 'Gebläse'.
It is recommendable to operate the catalyzer under a fume extraction hood exhausting the fumes
either into a chimney or to the outside. The catalyzer may be extended in the same way as a
blower; then an additional ventilator{XE "Additional ventilator" }(type ZL{XE "ZL" }, order
No. 73010, or type ZL2{XE "ZL2" }, order No. 73210) must be installed inside the pipe{XE
"Pipe" }. With this measure, the catalyzer's pipe may be extended up to approx. 3 - 5 m

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MIHM-VOGT GmbH & Co. KG, Dental-Gerätebau, Dunantstr. 7, D-76131 Karlsruhe, Tel.: [phone], Fax: [phone]
GB
(diameter for KN 120 mm at least, diameter for KN2 150 mm at least). Please see to it that the
air resistance is kept low (make only a few angles and do not use flaps) since otherwise the air
flow in the blower may change its direction.
In case of shock-heat investments{XE "Shock-heat investments" }, please ensure that the blower
runs continuously throughout the complete preheating process of the casting muffles. If required,
the shutoff temperature of the sockets has to be changed (see points 6.3.8 and 7.2).
In dental technology, gases of burnt wax (= organic hydrocarbons) are the main components
which are emitted when heating investments or casting muffles. These gases are burnt again in
the catalyzer and split into carbon dioxide (CO2) and water steam (H2O). In case of higher
temperatures, some investments may release also ammonia gases which the catalyzer transforms
into different nitrogen oxides (NOx). As not all manufacturers of investments and waxes give
complete information on additional components, it is impossible to name all remainders of other
contents released and their composition.
c.) Connection of a fume extraction hood{XE "Connection:Fume extraction hood" }{ XE
"Fume extraction hood" }:
A fume extraction hood used together with the laboratory furnace can be controlled via the
socket marked 'Dunst'. Using shock-heat investments requires continuous operation of the fume
extraction hood during the complete preheating process of the casting muffles. The shutoff
temperature of the rear sockets might have to be altered (see points 6.3.8 and 7.2). If the fume
extraction hood is controlled by several furnaces, a furnace adapter{XE "Furnace adapter" }/
relay connection{XE "Relay connection" }must be used:
MIHM-VOGT furnace adapter: furnace control only with switch:
furnace control / mains control
Connection of up to 3 furnaces: OA3, Art. No.: 7553 OA31, Art. No.: 7555
Connection of up to 4 furnaces: OA4, Art. No.: 7554 OA41, Art. No.: 7556
8. Error signals{ XE "Error signals" }
8.1 Error messages{ XE "Error messages" } of the electronics
If errors occur, an according error message is indicated in the display accompanied by an
acoustic signal.
Error signals: Cause: Elimination:
"Sensor defekt"{XE
"Sensor defective" }{ XE
"Error:Thermocouple
defective" }{ XE
"Error:Sensor defective" }
Thermocouple connections are
loose.
Check thermocouple connections.
Thermocouple defective. Change the thermocouple.
"Sensor + <-> -"{XE
"Sensor" }
Thermocouple is incorrectly
attached.
Shift thermocouple connections.
Temperature inside the heating
muffle is significantly below room
temperature.
Open the door and wait until the
heating muffle has reached room
temperature.