vita vacumat 40 User manual

VITA - Vacumat 40
Operating Manual

VITA - Vacumat 40
39/03/04 Vita Zahnfabrik H.Rauter GmbH&Co.KG 79704 Bad Säckingen 1
CONTENTS
1 Technical information.................................................................................................................... 3
1.1 General functions...................................................................................................................... 3
1.2 Technical data........................................................................................................................... 3
1.3 Electrical data............................................................................................................................ 3
1.4 Scope of delivery....................................................................................................................... 3
2 Installation and starting-up ........................................................................................................... 4
2.1 Installation ................................................................................................................................. 4
2.2 Connecting the furnace to the mains supply............................................................................. 4
2.3 Furnace out of operation........................................................................................................... 4
3 Safety advice................................................................................................................................... 5
3.1 Information of labels.................................................................................................................. 5
3.2 Cleaning of the furnace............................................................................................................. 5
3.3 Fuses......................................................................................................................................... 5
3.4 CE-mark.................................................................................................................................... 6
3.5 Cooling fan ................................................................................................................................ 6
4 Protection against power failure................................................................................................... 6
5 Rapid cooling down of the firing chamber .................................................................................. 6
6 Standby - Mode............................................................................................................................... 6
7 Firing programs.............................................................................................................................. 7
7.1 General information on firing programs and display ................................................................. 7
7.2 Temperature rising rate............................................................................................................. 8
7.3 Vacuum display......................................................................................................................... 8
7.4 Function of keys in the On -, Set - and Run - Mode.................................................................. 9
7.5 Set-Mode, selecting a program, changing program values..................................................... 10
7.6 Run-Mode, program started....................................................................................................11
7.7 Entering / changing / deleting vacuum parameters................................................................. 11
7.8 Slow cooling ............................................................................................................................ 12
8 Lift position for pre-drying .......................................................................................................... 13
9 Utilities........................................................................................................................................... 14
9.1 Functions of keys in the Service-Mode: .................................................................................. 14
9.2 Service No. 1 Standby ( Standby - Temperature) ................................................................. 14
9.3 Service No. 2 Lift speed ........................................................................................................ 15
9.4 Service No. 3 Signal time...................................................................................................... 15
9.5 Service No. 4 Function STOP - key ....................................................................................... 16
9.6 Service No. 5 Show total operating hours.............................................................................. 16
9.7 Service No. 6 Show total operating hours of muffle.............................................................. 16
9.8 Service No. 7 Call up furnace No........................................................................................... 17
9.9 Service No. 8 Call up software No. ....................................................................................... 17
9.10 Service No. 9 Service-Hotline ............................................................................................... 17
9.11 Service No. 10 Temperature adjustment with silver sample.................................................. 18

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9.11.1 Silver sample set VITA - Order No. B 230...................................................................... 19
9.12 Service No. 11 Automatic temperature adjustment................................................................ 19
9.13 Service No. 12 Code digit for PC connection......................................................................... 20
9.14 Service No. 13 Activate/reactivate data transfer.................................................................... 20
9.15 Service No. 14 Brightness / contrast of display...................................................................... 20
9.16 Service No. 15 Setting of time................................................................................................ 21
9.17 Service No. 16 Time – Date format........................................................................................ 21
9.18 Service No. 17 Show – hide display messages ..................................................................... 22
9.19 Service No. 18 Enter furnace parameters.............................................................................. 22
9.20 Service No. 19 Read firing table in the memory:.................................................................... 23
9.21 Service No. 20 Delete process data....................................................................................... 24
9.22 Service No. 21 Firing program – write / read parameters ...................................................... 24
9.23 Service No. 22 Service – write / read parameters.................................................................. 25
9.24 Service No. 23 Language....................................................................................................... 25
9.25 Service No. 24 Hold –temperature- program ......................................................................... 26
10 Error messages Error 01 - Error 29............................................................................................. 27
11 Data transfer ................................................................................................................................. 28
11.1 Activate data storage............................................................................................................... 28
11.2 Connection to PC for data transfer..........................................................................................28
12 Firing Cycle Charts....................................................................................................................... 29

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1 Technical information
1.1 General functions
•100 freely programmable firing programs
•Illuminated graphic display
•Clearly-structured and controllable firing cycles
•1 long-time cooling phase can be selected for each program
•Highest temperaturer accuracy
•Temperature adjustment program with silver sample
•Automatic temperature adjustment
•In case of power cut < 10 sec no abortion of program
•In case of power cut > 10 sec message in display
•Choice of three lift positions in pre-drying phase
1.2 Technical data
Dimensions: Width: 220 mm
Depth: 320 mm
Height: 420 mm
Casing: steel / stainless steel
Weight: 10.5 kg
Firing chamber - capacity: Diameter : 90 mm
Height: 55 mm
Firing chamber - temperature: max. 1200°C
1.3 Electrical data
Power supply: 230 Volts AC, 50 Hz
Power consumption: max. 1500 Watts
Classification: Safety class 1
Power supply for vacuum pump: 230 Volts, 50/60 Hz or 100/110 Volts, 50/60 Hz, max. 0.2 KW
1.4 Scope of delivery
Furnace in special shipping carton with:
•1 operating element
•1 firing tray
•1 mains power lead
•1 pair of furnace tweezers
•1 set of firing trays A + B
•1 set of firing trays G
•1 operating manual
vacuum pump (option) : 230 Volts, 50/60HZ
Weight approx. 6.4 kg

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2 Installation and starting-up
2.1 Installation
•When positioning the furnace, the minimum distance of the furnace
and any wall is at least 25 cm.
•At temperatures of less than 15°C (e.g after transport) leave the
unit for approx. 30 min. before starting-up.
•Make sure that the unit is placed on a heat-resistant surface. Heat
radiation and heating up of the unit are within a harmless range.
However it can not be excluded, that sensitive furniture surfaces
and veneerings may exhibit slight discoloration due to continuous
exposure to heat.
•The unit must not be exposed to direct sunlight.
•Do not place any combustible objects near the furnace.
•Do not place operating element directly into the heat radiation area
of the firing chamber.
2.2 Connecting the furnace to the mains supply
Notice: Prior to starting-up, observe safety advice item 3!
•Connect furnace to the mains supply (fig. 1). Do not use multiway
socket outlet with extension, overload may result in a fire.
•Connect vacuum pump (fig. 1).
•Connect operating element with the furnace (on the side) and open
it (fig. 2). Do not place operating element in the area of direct heat
radiation of the firing chamber.
•Switch on the furnace with the main switch (fig. 1), lift will descend
into lower position.
•Place the firing tray onto the lift support plate. (fig. 2)
•Activate with Standby Mode key (for further information see
Standby Mode)
2.3 Furnace out of operation
If the furnace is not used, the lift should be moved with into the firing chamber and the unit should be
switched off with the main switch. Closing the firing chamber will protect the insulation and avoid the
absorption of moisture.
fig. 1
Firing object plate
Main switch
Vacuum connection
Connection
vacuum pump
110 / 115 volt or230 volt
Main connection
Fuses
fig. 2
Firing platform

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3 Safety advice
For your personal safety we would like to ask you to read the following safety-relevant information completely
before starting-up the furnace.
3.1 Information of labels
This is a warning symbol about dangerous electrical current.
Disconnect the unit from the mains supply before opening it (fig. 3).
Caution if rear panel is removed: there may be a residual voltage
of up to 400 volts on the board if the unit is switched off.
The manufacturer disclaims any liability for accidents of the user if the
furnace is not closed.
Caution: Do not place any objects near the lift tray. When the unit
is switched on, the lift will descend into the lower position
(fig. 3).
Use lateral plate to place firing objects on (fig. 3).
Furnaces must not be operated without firing tray placed
on (fig. 2).
During continuous operation (max. end temperature, max. firing time)
some parts of the firing chamber may reach high temperatures
(above 70°C).
If the unit is connected to the mains supply, do not reach into the open
firing chamber to avoid contact with live and hot components.
3.2 Cleaning of the furnace
Unplug the unit each time before it is cleaned !! (fig. 3)
It is not necessary to clean the interior of the firing chamber, cleaning
of the casing with a wet cloth within regular intervals will ensure
operational reliability (especially of the lift drive). Do not use hot
objects for the keys of the operating element, e.g. pair of tweezers.
Operating element should only be cleaned with a dry cloth or brush.
Basically, no cleaning agents and no flammable liquids must be used for any type of cleaning work.
3.3 Fuses
In the rear panel there are two fuses for the unit. The labels provide
information on the fuses used in the unit. Fuses with different values
must not be used.
230 Volt
T1 H 250 V T 8 H 250 V
100/110 Volt
T3,15 H 250 V T 15 H 250 V
Fuses
fig. 3
Firin
g
ob
j
ect tra
y
Mains plug
Lift tray area

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3.4 CE-mark
The use of the CE-mark entails the legally binding statement that the unit complies with the
basic requirements of guideline 73 / 23 / EEC (Low Voltage Guideline) as well as guideline 89
336 / EWG (EMV - guideline).
3.5 Cooling fan
The furnace has been equipped with a cooling fan which will be switched on and provide half of its power
after starting a firing program at a temperature of 605°C to 800°C in the firing chamber and then offer full
power up to the end of the program and cooling down to 600°C. The cooling fan avoids excessive heating of
the furnace and contributes to ensure the general operational reliability of the furnace. In case of failure of the
cooling fan an error message is shown on the display (see error messages). For safety reasons the furnace
should not be operated without the cooling fan. Do not block the upper cover of the firing chamber or the
openings of the rear panel.
4 Protection against power failure
The Vacumat furnace is protected against power failure. This element avoids program abortion and thus
incorrect firing in case of a short failure of the mains voltage supply. This backup device is activated
immediately in the event of a mains power failure during an active firing program.
In case of a failure of less than 10 sec, the program continue and is
not aborted. Display shows Error 09 (see error messages). Pressing
the Stop key deletes the Error message and the data of the program
sequence will be shown on the display again.
In the case of a failure of more than 10 sec the program is aborted and
the display shows Error 08 (see error messages). Pressing the Stop
key deletes the Error messages.
5 Rapid cooling down of the firing chamber
To ensure that the furnace can be quickly reused for further firing processes, the pump can be activated by
pressing .
Precondition: no active program, lift tray in lower position and temperature in the firing chamber higher than
standby temperature.
After cooling down to 50°C below the standby temperature, the pump is switched off, the lift is raised into the
upper position and the temperature rises up to the standby temperature (Standby).
6 Standby - Mode
Start:
Switch on furnace with the main switch - lift ⇓
⇓⇓
⇓
Start
Lift ⇑
⇑⇑
⇑
Stop:
STOP
Lift ⇓
⇓⇓
⇓
Changing the Standby temperature see utilities No. 1
If the unit is switched on as well as in the standby mode, the time and the date are displayed. (see utilities No.
15 and 16).
Error 9
Recover
Continue: (STOP)
Error 8
Power Fail
Continue: (STOP)
Standby
20 °C
500 °C
08:00
10.01.1999

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7 Firing programs
7.1 General information on firing programs and display
100 freely programmable firing programs are available.
The programs include the following adjustable parameters:
Firing programs: No. 1 - 100
Set Mode (change/enter program values) or
Run Mode (firing program active)
2Pre-drying temperature: 200°C - 700°C
3Pre-drying time: 0:00 - 40:00 min (entry in min/sec.)
4Lift positions for pre-drying: see item 8
5Temperature rising rate: 2:00 - 40:00 min oder 20 - 120°C/min
(see also item. 7.2 temperature rising rate)
6End temperature: max. 1200°C
7Hold-time for end temperature: 0:00 - 40:00 min (entry in min/sec.)
8Vacuum Start and vacuum value: * Start simultaneously with temperature rising rate (pre-drying -
temperature) or selection for start in the temperature range of
200°C - 1100°C.
* After the start of the vacuum pump the vacuum value is displayed
in % (see also item. 7.3 vacuum display).
9Vacuum Stop: rising time is automatically taken over as vacuum time, or individual
selection of Stop in the temperature range of 500°C - 1200°C or
time range max. rising time plus temperature hold-time
10 Cooling temperature 200°C - max. end emperature in the program.
11 Lift position slow cooling see also item 7.8
12 Display for temperature in the firing chamber up to 1200°C
The values for lift position, pre-drying (4) and slow cooling (11) can be removed from the display with the
utilities program No. 17
Prog Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
60%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
Vacuum
2:00min
10
6
9
8
11
12715
4
2
3
30%

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7.2 Temperature rising rate
The temperature rising rate is displayed in the Set-Mode (program selected) in °C/min and in min/sec. The
value to be entered can be selected between °C/min (20°C – 1120°C) or min/sec. (2:00 – 40:00). The second
value is calculated automatically and displayed. Values outside the acceptable range activate a warning
signal and the final, valid value is displayed again. If – due to the entry of a temperature rising rate in min /sec
– the calculated temperature rising rate of 20°C/min is not reached or the upper value of 120°C is exceeded,
a valid rising time is automatically entered in min/sec.
If the pre-drying temperature or the firing temperature is changed after entering the temperature rising rate,
the value °C/min is corrected, the time in min/sec remains unchanged as long as the value lies within the
permissible range.
7.3 Vacuum display
The vacuum display shows the value in %.
Starting from the atmospheric pressure on sea level of 100 mbar:
100% = - 1000 mbar (can not be achieved)
95% = - 950 mbar or 50 mbar absolute
90% = - 900 mbar or 100 mbar absolute
The vacuum value that is achieved depends on the power of the vacuum pump used and ranges between 85
to 95% (150 mbar - 50 mbar asolute).
If the vacuum value of 30% is not reached within 15 sec during a firing program, the firing program is aborted
and error message Vaccum, Error 00 is displayed.

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7.4 Function of keys in the On -, Set - and Run - Mode
Mode: On: Furnace switched on, lift in lower position, no active program.
Set: program selected
Run: program started
1
Start
On-Mode: activates standby
Set-Mode: starts program (previously changed values are stored)
Run-Mode: no function
2
STOP
On-Mode: no function
Set-Mode: end set mode (previously changed and unconfirmed values are not stored)
Run-Mode: program abortion
3
Prog
On-Mode: activates Set-Mode, program that was selected last is called
Set-Mode: no function
Run-Mode: no function
4
+
On-Mode no function
-
Set-Mode: change of program No. and program values, plus/minus
Run-Mode: no function
5 On-Mode: manually moving lift up/down
Set-Mode: selection of program steps and simultaneous storing of the value changed last and
call of next program step.
Run-Mode: manually moving lift up/down (not active with vacuum)
6 On-Mode: call utilities (see utilities)
Set-Mode: call function input for vacuum parameters
call function input of cooling parameters
call function input of lift positions pre-drying
Run-Mode: no function
7 On-Mode :
0
to
9
no function
Set-Mode:
0
to
9
enter program No. and program values
Run-Mode: no function
5 2 4 8 9
5 6 1 3 4
7
12
4
789
*
# 0
56
3

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8On-Mode: rapid cooling down of firing chamber (see item No. 5)
Set-Mode: sets back/deletes values
Run-Mode: no function
9
#
On-Mode no function
Set-Mode: Stores changed values and starts next program step.
Run-Mode: no function
7.5 Set-Mode, selecting a program, changing program values
Precondition: On-Mode, lift tray in lower position, no active program.
Prog
program that was started last is displayed e.g. No.4
Start
program starts (Run-Mode)
or
When selecting programs with numerical block
press
#
to confirm, not required when selecting
with plus/minus keys.
Start
program starts
or changing program values
temperature rising rate, see also 7.2
Changed values must be confirmed/stored by pressing
#
or /
The key is pressed to set back entered values,
Start
program starts (changed values are stored)
or select/change next program value
or
STOP
Set-Mode end (any changed and not confirmed values are not stored).
123
456
789
0#
o r
Changing program no.
enter with
123
456
789
0#
o r
Selecting program value
(
Selected value is displa
y
ed inversel
y
)
Changing program value
enter with
Prog_Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
50%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
VAC:
2:00 min
50%

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7.6 Run-Mode, program started.
Precondition: On-Mode, lift tray in lower position, no active program.
Set-Mode selected (program selected see item 7.5).
Run-Mode can be started with
Start
key.
The countdown of the respective time informs about the program
progress. After switching on the vacuum pump the vacuum value is
displayed in the Start box.
7.7 Entering / changing / deleting vacuum parameters
Precondition: program selected, (Set-Mode)
press one time, programmed values are displayed.
Vacuum Off = no values displayed
Vacuum On = the pre-drying time is entered for Vacuum Start (start of
vacuum pump with start of temp. rising time) for
Vacuum Stop the temp. rising time/ end temperature is
taken over.
Selecting Vacuum On or Off:
+
select On with key 1 in the numerical block and confirm with
#
or
-
select Off with key 0 in the numerical block and confirm with
#
(vacuum values not shown)
Changing vacuum parameters:
these keys are used to select between vacuum parameters selected range can be changed.
Acceptable values for: Vacuum Start = in the temperature range from pre-drying temperature to final
temperature.
Changed values must be confirmed/stored with
#
or / .
STOP
Set-Mode End of vacuum
(any changed and unconfirmed values are not stored).
Prog_RUN 4 670 °C
600 °C
930 °C
700 °C
82°C/min
4:00 min
50%
25%
0%
Stop: 4:00 min
0:00min Start: 600°C
VAC:
2:00 min
50%
Prog Set 4 500 °C
Vacuum Start : 600 °C
Vacuum Stop (time) : 6:00 min
Vacuum Stop (Temp) : 960 °C
Vacuum : On
123
456
789
0#
o r
Changing program value
enter with
Prog_Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
50%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
VAC:
2:00 min
50%
Prog_Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
50%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
VAC:
2:00 min
50%

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7.8 Slow cooling
Precondition: Program selected, (Set-Mode)
press two times, programmed values are displayed
Cooling Off = all values are hidden
Cooling On = programmed values are displayed
Selecting slow cooling On or Off:
+
select On with key 1 in the numerical block and confirm with key
#
or
-
select Off with key 0 in the numerical block and confirm with
#
(cooling down parameter hidden)
these keys are used to select cooling down temperature and lift position, selected value can be
changed.
Acceptable values: Cooling down temperature = 200°C – max. end temperature in the program. Lift
position = 0 - 99% (0% lift in lower position)
Changed values must be confirmed/stored with
#
or / .
STOP
Set-Mode End of vacuum
(any changed and unconfirmed values are not stored).
Prog Set 4 500 °C
Temp: 700 °C
40 %
Cool Down : On
123
456
789
0#
o r
Changing program value
enter with
Prog_Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
50%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
VAC:
2:00 min
50%

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8 Lift position for pre-drying
With the utilities No. 18, entry of unit parameters, the following basic values for the lift positions are entered:
Pos. 1 = 0% time 50 sec.
Pos. 2 = 25% time 50 sec.
Pos. 3 = 50% remaining pre-drying time
These values can be changed for each program.
Precondition: program selected, (Set-Mode)
press three times, display shows programmed values,
Pre-drying Lift position 1 underlined.
These keys are used to select lift positions and intervals,
selected value is underlined and can be changed.
Acceptable values:
Lift position 1 = 0 - 30% (0% = lift in lower position)
Lift position 2 = 0 - 50% but not smaller than position 1
Lift position 3 = 0 - 80% but not smaller than position 2
Interval 1 = 0 - 120 sec.
Interval 2 = 0 - 120 sec.
Interval 3 = automatic entry of remaining pre-drying time.
Changed values must be confirmed/stored with
#
or / .
STOP
Set-Mode End of vacuum
(any changed and unconfirmed values are not stored).
Display for lift positions can be shown or hidden with Service No. 17.
Prog Set 4
Pos.3 :
Pos.2 :
Pos.1 : 0 %
25 %
50 % 50 sec.
260 sec.
50 sec.
PreDry : 500 °C
123
456
789
0#
o r
Changing program value
enter with
Prog_Set 4 500 °C
600 °C
930 °C
700 °C
55°C/min
6:00 min
50%
25%
0%
Stop: 6:00 min
6:00min Start: 600°C
VAC:
2:00 min
50%

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9 Utilities
9.1 Functions of keys in the Service-Mode:
Precondition: On-Mode, lift tray in lower position, no active program.
call Utilities-Mode, start with No. 1
store changes and end service program.
+
changes of values
-
Selecting On = key 1 or Plus key
Selecting Off = key 0 or Minus key
store changes and call next service program.
STOP
press once, set back change of value.
press two times to end service program.
9.2 Service No. 1 Standby ( Standby - Temperature)
is pressed, display shows selected value (e.g. 500°C)
+
changes of values (range 200°C - 600°C)
-
store and end
or
store and start next service program.
Standby - Temperature :
Service 1
500 °C
Standby - Temperature :
Service 1
500 °C
12
4
789
*
# 0
56
3

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9.3 Service No. 2 Lift speed
then is pressed until Service No. 2 is displayed.
display shows previously selected values
These keys are used to select between raising and lowering speed,
selected value is underlined and can be changed.
Acceptable values: Lowering: approx. 6 - 16 sec.
Raising: approx. 6 - 16 sec.
+
changes of values
-
store and end
or
store and call next service program.
Note: When selecting/changing values, the lift moves into the upper or lower position after approx. 5 sec to
determine the correct speed.
9.4 Service No. 3 Signal time
then is pressed until Service No. 3 is displayed.
Display shows previously selected values.
+
Acceptable values: 0 - 20 sec. or continuously
-
store and end
or
store and call next service program.
Lift - Speed :
Service 2
14 sec. 14 sec.
Signal - Time :
Service 3
10 sec.

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9.5 Service No. 4 Function STOP - key
then is pressed until Service No. 4 is displayed.
Display shows previously selected values.
+
changes of values
-
Acceptable values: 1 = Press Program Stop once
2 = Press Program Stop two times
store and end
or
store and call next service program.
9.6 Service No. 5 Show total operating hours
then is pressed until Service No.5 is displayed.
Display shows total operating hours of the furnace.
end
or
call next service program.
9.7 Service No. 6 Show total operating hours of muffle
then is pressed until Service No.6 is displayed.
Display shows operating hours of muffle.
end
or
call next service program.
Stop Press :
Service 4
Stop 1x
Device - Hour :
Service 5
00011 h
Heat - Hour :
Service 6
00005 h

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9.8 Service No. 7 Call up furnace No.
then is pressed until Service No.7 is displayed.
Display shows furnace No.
end
or
call next service program.
9.9 Service No. 8 Call up software No.
then is pressed until Service No.8 is displayed.
Display shows software No.
Core = software No. of main board
CTRL = software No. of operating element
end
or
call next service program.
9.10 Service No. 9 Service-Hotline
then is pressed until Service No. 9 is displayed.
Display shows Tel. * 49 (0) 7761/562222
end
or
call next service program.
Device - ID :
Service 7
000455
Software - Version :
Service 8
CoreVac: V 1.2
Ctrlext : V 1.2
Hotline :
Service 9
* 49 (0) 7761 - 562222

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9.11 Service No. 10 Temperature adjustment with silver sample
With this program and the VITA silver sample set (VITA Order No. B 230) the temperature in the firing
chamber can be checked and readjusted in the range of plus/minus 20°C. Up on readjusting it must be
ensured that the instructions to perform (instructions in the silver sample set) the test with the silver sample
are strictly adhered to. Noncompliance leads to incorrect measurements and thus to incorrect adjustment.
then is pressed until Service No. 10 is displayed.
+
to set Temp. – Offset to „0“
-
Check program values:
Prog
check program values,
select/change program values with the keys
+
,
-
or .
the following values should be included in the program:
•Pre-drying temperature 600°C
•Pre-drying time 1:00 min
•Temperature rising time 6:00 min
•End temperature 955°C
•Hold-time for end temperature 3:00 min
Changed values must be confirmed/stored with
#
or / .
end check/input of program values
Place silver sample on lift tray
Start
is pressed, program starts
acoustic signal at the end of the program
signal off
melting point of silver sample is O. K. (silver should have melted slightly)
program completed
or
melting point of silver sample is not O.K.
+
adjustment of temperature e.g. plus 10°C(range of plus/minus 20°C)
-
then
Start
, program starts - see, * acoustic signal at the end of the program.
When the melting point of the silver sample is reached, the temperature -offset
value will be stored when the key is pressed.
Temperature control and thus the temperature in the firing chamber is adjusted with this value.
Service 10
Temp - Adjust :
Temp - Offset : 0 °C
Service 10
Temp - Adjust :
Temp - Offset : + 10 °C
12
4
789
*
# 0
56
3
Service 10
Temp - Adjust :
Temp - Offset : 0 °C

VITA - Vacumat 40
39/03/04 Vita Zahnfabrik H.Rauter GmbH&Co.KG 79704 Bad Säckingen 19
9.11.1 Silver sample set VITA - Order No. B 230
Vita silver sample set for temperature control contains
•Description
•VITA silver sample set for temperature control
•6 ceramic trays
•3 silver rods with a length of 70 mm and a diameter of 1.5 mm
9.12 Service No. 11 Automatic temperature adjustment
Automatic temperature adjustment is activated after switching on the furnace at intervals of 100 operating
hours of the muffle. During this process the display shows for approx. 15 sec: Auto Electronic.
Preconditions are:
•Automatic temperature adjustment ON
•100 operating hours of muffle have expired
•Temperature in the firing chamber lower than 50°C
Automatic temperature adjustment considers resp. corrects any deviation of the electronic components within
the temperature measuring circuit. Accordingly, a constant temperature control of +/- 1°C is ensured even
when the furnace is operated over longer periods.
Selecting Service program:
then is pressed until Service No. 11 is displayed.
+
On is selected
or
-
Off is selected
store and end
or
store and call next service program.
Auto-Electronic-Temp-Adjust :
Service 11
Off