Zubler Vario Press 100 User manual

VP_0206E
VARIO
VARIO VARIO
VARIO PRESS
PRESSPRESS
PRESS



100
100100
100
Operations Manual
For dental technicians with the highest demands
Zubler Gerätebau GmbH
Buchbrunnenweg 26
D-89081 Ulm
Tel.: [phone]; Fax: [phone]

Vario Press 100 Operations Manual
VP_0206E 2
! WARNINGS !
DO NOT OPERATE THIS FURNACE WITH ANY OTHER POWER
CORD.
DO NOT OPERATE WITH AN EXTENSION CORD.
OPERATING THIS FURNACE ON A CIRCUIT WITH OTHER
FURNACES OR ELECTRICAL APPLIANCES THAT REQUIRE
SIGNIFICANT POWER MAY CAUSE A CIRCUIT BREAKER TO
TRIP.
THE GASSES PRODUCED WHEN HEAT TREATING REFRACTORY
MODELS WILL DAMAGE THE TRANSPARENCY OF THE QUARTZ
TUBES IN THE MUFFLE CHAMBER AND MAY CAUSE VACUUM
LEAKAGE.
TO HELP EXTEND THE LIFE OF THE MUFFLE, IT IS NECESSARY
TO PREHEAT REFRACTORY MODELS IN A BURNOUT FURNACE
TO PREVENT THE GASSES FROM DAMAGING THE QUARTZ
GLASS IN THE MUFFLE CHAMBER.

Vario Press 100 Operations Manual
VP_0206E 3
EG- Conformity Declaration
VARIO
VARIO VARIO
VARIO PRESS
PRESSPRESS
PRESS



100
100100
100
Multifunctional Ceramic Furnace
We,
Zubler Gerätebau GmbH
Buchbrunnenweg 26
D-89081 Ulm
Tel.: [phone]
Fax: [phone]
E-Mail: [e-mail]
declare, that the product
VARIO PRESS
VARIO PRESSVARIO PRESS
VARIO PRESS
®
100
100100
100
(Multifunctional Ceramic Furnace)
corresponds to the regulations of the following directives
in regard to protective requirements
89/336/EWG EMV-Directive
73/23/EWG Low-voltage Directive
93/68/EWG CE-Sign
Any modification not specifically approved by us
voids the validity of this declaration.
Kurt Zubler
Managing Director

Vario Press 100 Operations Manual
VP_0206E 4
TABLE OF CONTENTS
CHAPTER ONE 6
GETTING STARTED 6
FIRST 7
UNPACKING 7
INSTALLING THE VACUUM PUMP 7
TECHNICAL SPECIFICATONS 8
ACCESSORIES 8
POWER 9
FRONT PANEL CONTROLS 9
MENU SELECTION BUTTONS 10
INFORMATION ENTRY 11
PROGRAM START/ABORT 12
TABLE CONTROL 12
USING THE FURNACE 12
CHAPTER TWO 13
SPECIAL FUNCTIONS MENU 13
CHANGE IDLE TEMPERATURE 14
SET VACUUM LEVEL 14
DEGREES CELSIUS OR FAHRENHEIT 15
SET PROGRAM START DELAY 15
NIGHT MODE TEMPERATURE 16
SELECT CONSTANT OR CYCLE VACUUM PUMP 16
SPECIAL COOL POSITION 17
SELECT UPPER OR LOWER CASE LETTERS 17
PORCELAIN NAMES 17
ADJUST CALIBRATION TO MATCH YOUR PORCELAIN 18
ADJUST LOW FUSING PORCELAIN CALIBRATION 19
ADJUST HIGH FUSING PORCELAIN CALIBRATION 19
ADJUST PRESS TEMP. CALIBRATION 20
FURNACE CALIBRATIONS 21
TRANSFERRING PROGRAMS TO OTHER FURNACES 21
ADJUST SPEAKER VOLUME AND DISPLAY CONTRAST 21
TESTING YOUR FURNACE 22
NIGHT MODE 22
AUTOMATIC ENERGY SAVER AND NIGHT MODE 23

Vario Press 100 Operations Manual
VP_0206E 5
CHAPTER THREE 24
CHANGE PROGRAM MENU 24
PROGRAM NUMBER / NAME DESCRIPTION 25
LOOK AT A PROGRAM 26
ADD A PROGRAM 26
NORMAL FIRING CYCLE PROGRAM 26
PRESS FIRING CYCLE PROGRAM 28
INCERAM FIRING CYCLE PROGRAM 29
SPECIAL FIRING CYCLE PROGRAM 30
CHANGE A PROGRAM 33
COPY / CHANGE A PROGRAM 34
MOVE A PROGRAM 34
ERASE A PROGRAM 35
PRINT PROGRAMS 35
CHAPTER FOUR 37
RUN PROGRAM MENU 37
REPEAT PROGRAMS 38
FEATURES AND DISPLAYS 38
AVAILABLE WHILE A PROGRAM IS RUNNING 38
SKIP STEP 40
CHANGE THE PROGRAM THAT IS RUNNING 40
NIGHT MODE WILL ACTIVATE UPON COMPLETION OF THE PROGRAM 41
RUNNING A PRESSING PROGRAM 41
SELECTING AND RUNNING A MANUAL PRESSING PROGRAM 42
CHAPTER FIVE 43
MAINTENANCE 43
CLEANING YOUR FURNACE 44
BATTERY REPLACEMENT 44
SOFTWARE VERSION UPGRADES 44
PRINTER REQUIREMENTS AND INSTALLATION 45
MANUAL LIFT OPERATION 46
TROUBLESHOOTING GUIDE 46
TEST FOR VACUUM LEAKS 47
FUSES 48
PROGRAM-SPECIFICATION-SHEET 49
TEMPERATURE-VACUUM-TIME-DIAGRAM 51
STANDARD-PROGRAM TYPE 51
SPECIAL-PROGRAM TYPE 52
PRESS-PROGRAM TYPE 53
SINTER-PROGRAM TYPE 54
CELSIUS / FAHRENHEIT CONVERSION TABLE 55

Vario Press 100 Operations Manual
VP_0206E 6
Chapter One
Getting Started

Vario Press 100 Operations Manual
VP_0206E 7
You are undoubtedly eager to unpack, set up, and begin using your new furnace.
Getting you started will be much easier if you will carefully review the information in
this chapter and follow the steps as outlined.
First
Some things you should know before you unpack your furnace:
When you unpack your furnace, be sure to save the carton and packing materials. These can be
used again if there is ever a need to ship or return equipment.
Be sure to read and save the printed shipping material packed with your furnace – it contains
valuable information!
 DO NOT turn on the power to your furnace until you are instructed to do so, or you will damage
your furnace!
Unpacking


 If the packaging materials and/or the furnace appear to be damaged, please call your dealer
before continuing


 Remove the furnace from the packing materials and place it on a flat surface.
1. Look up into the muffle area and locate the orange shipping bar and wing nuts. Remove the
wing nuts, push the two bolts and attached brackets out of the orange bar. Finally remove the
orange bar by sliding it out the side. Keep these parts incase there is a need to ship the furnace.
Installing the Vacuum Pump


 Plug the vacuum pump’s power cord into the outlet end of the short power cord supplied with
the furnace. (Inside the accessory box)
 Attach the other end of this short power cord to the international standard outlet on the rear of
the furnace. (next to the furnace power inlet)
 Attach a ¼ inch vacuum rated hose from the vacuum pump to the brass fitting marked
“VACUUM PUMP” at the rear of the furnace.

Vario Press 100 Operations Manual
VP_0206E 8
Technical Specifications
Electric Connection:……………………..220V-240V, 50/60 Hz
Power Required:…………………………Furnace without Vacuum Pump: max. 950 W
…………………………………………...Furnace with Vacuum Pump: max. 1.200 W
Compressed Air Connection:…………….4,8 to 5 bar
Width x Depth x Height:…………………267 x 381 x 508 mm
Combustion Chamber:…………………...Inside Diameter: 95 mm
…………………………………………...Height: 63,5 mm
Weight:……………………………..……26,6 kg
Max. Temp.:……………………………..1.200 °C
Maximum Minimum Adjustable
Preheating Time (min:sec) 99:00 0:00 1 sec
Preheating Temp. 950 °C 25 °C 1° C
Heating Rate 150 °C/min 1 °C/min 1 °C/min
Soaking Time (min:sec) 60:00 0:00 1 sec
Soaking Temp. 950 °C 25 °C 1° C
End Temp. 1.200 °C 25 °C 1° C
Vacuum Level (cm HG) 75 cm 28 cm 1 cm
Holding Time (min:sec) 99:00 0:00 1 sec
[at Sintern (h:min)] 18:10 0:00 1 min
Cooling Time (min:sec) 99:00 0:00 1 sec
Vacuum-Start at Temp. 1.200 °C 25 °C 1° C
Vacuum-End at Temp. 1.200 °C 25 °C 1° C
Special Cooling Temp. 950 °C 25 °C 1° C
Special Cooling Time (min:sec) 20:00 0:00 1 sec
Idle Temp. 650 °C 0 °C 1 °C
Night Mode Temp. 400 °C 0 °C 1 °C
Accessories


 Manual Vario Press 100


 Cooling Tray (Black)


 Firing Tray, Regular BS2


 FiringTray, Press BS1 (Tray and Insert)


 Power Cord


 Temperature Calibration Certificate


 Extra Fuse Set


 2 Plunger Rods


 2 Large Ring set

Vario Press 100 Operations Manual
VP_0206E 9


 10 Ring Forming Papers


 Compressed-Air Hose appr. 2 m
Power


 The furnace requires 220V-240V and 6.3 Amp. A special heavy-duty power cord has been
supplied with your furnace. DO NOT OPERATE WITH ANY OTHER POWER CORD. DO
NOT OPERATE WITH AN EXTENSION CORD. OPERATING THIS FURNACE ON A
CIRCUIT WITH OTHER FURNACES OR ELECTRICAL APPLIANCES THAT
REQUIRE SIGNIFICANT POWER MAY CAUSE A CIRCUIT BREAKER TO TRIP.
Install the heavy-duty power cord and plug the furnace into a grounded outlet.


 Position the furnace so that the front is facing you. You should be able to reach the power switch
on the right side of the furnace at the rear. Be sure to have at least 20cm (8 inches) on all sides of
the furnace to allow sufficient airflow to keep the furnace cool. Do not place anything flammable
near the furnace.


 Turn the furnace on using the power switch. The display should light up with a message like the
one shown in illustration 1.0, with the X’s replaced by numbers.
The furnace will perform an internal self test for about 30 seconds and will then display the following
screens:
NOTE: the actual version number of your furnace will replace X.XX.XX in the above illustration.
The PR represents a Vario Press 100.
Front Panel Controls
The front panel controls and their basic functions are described in this section. Please read this
section carefully. (For further details see the illustration on the following page.)
The front panel controls are divided into four groups:
ΟMenu selection buttons: Run Program, Change Program, and Special Functions
ΟInformation entry: Silver Select Knob, Next and Last
ΟProgram Start/Abort buttons
Ο
ΟΟ
ΟTable control buttons: Up/Down
VER – X.XX.XX PR
NEXT = CONTINUE
TESTING X X
X XXV XXM XX
Illustration 1.0

Vario Press 100 Operations Manual
VP_0206E 10
Menu Selection Buttons
The three-menu selection buttons (Run Program, Change Program and Special Functions.)
will display different options. The menu options can be seen by turning the Silver Select
Knob after pressing the desired menu button.
Run Program -Press the “Run Program” button to:
ΟSelect a program to run.
ΟReview the program that is currently running.
ΟDisplay the idle temperature if no program is running.
Change Program - the following actions may be initiated by first pressing the Change
Program button, then turning the Silver Select Knob to display the following options:
ΟLook at a program
ΟAdd a program
ΟChange a program
ΟCopy/change a program
ΟMove a program
ΟErase a program
ΟPrint programs (or a single program)
Special Functions - press this button and turn the Silver Select Knob to select one of the
following actions:
ΟStart night mode
ΟChange idle temperatures
ΟSet vacuum level
Change Program
Run Program
Special Functions
Start Button
Table down Button
LCD/Screen
Table up Button
(Select) Knob
Abort Program
Button
Next Button
Last Button

Vario Press 100 Operations Manual
VP_0206E 11
ΟSelect degree C (Centigrade), or F (Fahrenheit) as well as (Inches or Centimetres)
ΟSet program start delay
ΟSet night mode temperature
ΟSelect between constant vacuum pump or cycle vacuum pump options
ΟSelect special cool position
ΟSelect upper or lower case letters on the display
ΟChange porcelain names
ΟAdjust temperature calibration for low fusing porcelains
Ο
ΟΟ
ΟAdjust temperature calibration for high fusing porcelains
Ο
ΟΟ
ΟCalibrate press temperature
Ο
ΟΟ
ΟPrint forms
Ο
ΟΟ
ΟTime and date
Ο
ΟΟ
ΟPrograms ⇒
⇒⇒
⇒Box: copy programs or software from furnace to “Red” box
Ο
ΟΟ
ΟPrograms ⇐
⇐⇐
⇐Box: copy programs or software from “Red” box to furnace
Ο
ΟΟ
ΟTest Furnace
•
••
•Vacuum
•
••
•Press
•
••
•Muffle
•
••
•Table up
•
••
•Table down
•
••
•Muffle hours (hours the muffle has been above 600º C)
Ο
ΟΟ
ΟCalibrate Oven – see the table of contents for further information.
Information Entry
DISPLAY- All information and user prompts will be shown on the display (two lines; sixteen
characters each).
SELECT- Turn the Silver Select Knob left or right to select all program options or to adjust
program parameters.
NEXT-Press the “Next” button to proceed to the next step within a function or program.
LAST-Press this button to return to the preceding step within a function or program.

Vario Press 100 Operations Manual
VP_0206E 12
Program Start/Abort
START PROGRAM – Press the “Start Program” button to start a program. First press the “Run
Program” button and turning the Silver Select Knob to display the proper program then press the
“Start Program” button. Pressing the “Start Program” button without making a new selection will
cause the furnace to run the last program that was used if it is still displayed. If a program is not
displayed then the furnace will beep to indicate an error.
ABORT PROGRAM – Press this button to ABORT a program at any time.
Table Control
TABLE UP- Press the up arrow button to manually raise the table. Press the up arrow button a
second time and the table will stop
TABLE DOWN – Press the down arrow button to manually lower the table. Press the down arrow
button a second time and the table will stop. The table control button will not operate while a
program is running.
Using the Furnace
After the furnace has completed the self-test at power up, the Version screen appears. Press the
“Next” button to continue. The display should respond:
Now you must select one of the menu selection buttons on the left side of the front panel. To continue
setting up the furnace, Press the “Special Functions” button and the display will read:
Note: It is very important to set up the operating features of the furnace before you attempt to
program the furnace or run programs.
For best results in learning to use your new furnace, please follow these steps in this order:
1. Set up the operating features of the furnace by reading and following the instructions in Chapter
2: “Special Functions”. This is VERY IMPORTANT because these operating features will
affect how you enter and run programs.
2. Learn to program the furnace by reading Chapter 3: Change Program. Enter a few of your own
programs.
3. Read Chapter 4: Run Program to understand how to run programs.
READY,
SELECT
MENU BUTTON?

Vario Press 100 Operations Manual
VP_0206E 13
Chapter Two
Special Functions Menu

Vario Press 100 Operations Manual
VP_0206E 14
The Special Functions menu allows you to set up the operating features of the furnace. This mode is
reached by pressing the “Special Functions” button. Most Special Functions can be preformed
while a program is running, however this is not recommended because changing the operating
features could affect how the current program runs.
To look at or change a feature, press the “Special Functions” button. The display will read:
Turn the Silver Select Knob right or left until the desired feature is now displayed. Press the “Next”
button to look at or change this feature. Each feature will be described in this chapter.
Change Idle Temp
The idle temperature is the temperature at which the furnace will remain between programs. The
furnace comes from the factory with the idle temperatures set at 50º C, so you must adjust this feature
to best suit your needs.
1. Press the “Special Functions” button.
2. Turn the Silver Select Knob to display “CHANGE IDLE TEMP”.
3. Press the “Next” button to look at or change the idle temperature.
4. The current setting will be displayed. Turn the Silver Select Knob to change this value.
5. Press the “Next” button to accept the displayed value.
Set Vacuum Level
The vacuum level set with this feature is the target vacuum level for programs. The acceptable level
is from 22.0-cm to 71.0-cm of mercury or 9.0-in to 27.0-in of mercury. If the furnace does not pull a
minimum vacuum of 10-in within 20 seconds of calling for it, the program will be aborted. When
vacuum is called for in a program, the vacuum pump will be started and a timer will begin. If the
target vacuum level has not been reached within 1.5-in of the target by 100 seconds, the program will
be aborted and a warning screen will be displayed, indicating a vacuum error. If “Continuous VC
Pump” has been selected by using the “Special Functions” menu, the vacuum pump will run
throughout the vacuum cycle. If “Continuous VC Pump” has not been selected, the vacuum pump
will shut off after the target level has been reached and at least 5 seconds have elapsed. The vacuum
pump will be restarted when the vacuum level has dropped to 1-in below the target value.
The furnace uses an absolute vacuum sensor. With an absolute sensor, lower vacuum level
adjustments are not necessary at high altitudes.
To set the vacuum level for all programs do the following:
1. Press the “Special Functions” button.Turn the Silver Select Knob until “SET VACUUM
LEVEL” is now displayed.
SELECT
ITEM:
NITE MODE

Vario Press 100 Operations Manual
VP_0206E 15
2. Press the “Next” button to look at or change the vacuum level.
3. The current setting will be displayed. Turn the Silver Select Knob to change this value.
4. Press the “Next” button to accept the displayed value.
Degrees C or Degrees F
The Vario Press 100 may be set to display all values using the metric system with degrees in
Centigrade and vacuum in centimeters of mercury or the furnace may be set to display all values
using the English (standard) system of degrees Fahrenheit and vacuum in inches of mercury.
1. Press the “Special Functions” button. Turn the Silver Select Knob until “TEMP IN C OR F?”
Is now displayed.
2. Press the “Next” button to look at or change the measurement system in use.
3. “TEMP CENTIGRADE?” Will be displayed. Turn the Silver Select Knob to select “YES” for
metric units or select “NO” for English (Standard) units.
4. Press the “Next” button to accept either yes or no.
Set Program Start Delay
The Vario Press 100 has a unique feature that allows the operator to program a delay to occur before
the start of all programs. Many technicians use this feature to insure an adequate drying time before
the lift begins to rise into the muffle. This delay occurs before the entry time set into each program
begins. This feature may be changed without affecting the programs or calibrations stored in the
furnace.
1. Press the “Special Functions” button. Turn the Silver Select Knob until second line on the
display reads PROG START DELAY.
2. Press the “Next” button to look at or change the start delay time.
3. The display will read TIME = 0.00 or any time delay previously entered. If this feature has
already been programmed, the “0.00” will be the current value. Turn the Silver Select Knob to
change the time as desired.
4. Press the “Next” button to accept the displayed value.
Note: The delay subtracts the time it takes to heat the muffle to entry temperature so the delay time
may appear shorter than originally programmed. As an example; lets assume the delay is set for
thirty minutes, the entry temperature is 500ºC and the time it takes the furnace to reach 500ºC is
fifteen minutes. The furnace would count down fifteen minutes to the beginning of the program and
then would begin heating to the entry temperature. This gives us a total of 30 minutes before the
table rises to the muffle.

Vario Press 100 Operations Manual
VP_0206E 16
Night Mode Temperature
If night mode is activated while a program is running, the furnace will go to the night mode
temperature after the completion of the program and will maintain the Night Mode temperature until
any button is pressed or the power is cycled off and to reset the furnace. The factory setting is 50ºC.
this temperature may be adjusted from 0 to 400ºC.
To adjust Night Mode temperature:
1. Press the “Special Functions” button.Turn the Silver Select Knob until the display reads
“NIGHT MODE TEMP”.
2. Press the “Next” button to look at or change the night mode temperature.
3. Turn the Silver Select Knob to change the displayed value as desired.
4. Press the “Next” button to accept the displayed value.
Night mode can be initiated at any time, below are some examples. For further information on
Night Mode refer to page 23 in this manual.
ΟTo start at the end of the program while a program is running.
ΟWhile the furnace is idling
ΟAutomatically, when no programs have run and no buttons have been pressed for two hours.
When Night Mode has been initiated:
ΟThe table will drop until the temperature reaches the set night mode temperature.
ΟThe table will close and the furnace will hold the night mode temperature until any button is
pressed
Select Constant or Cycle Vacuum Pump
Selecting “constant vacuum” will cause the vacuum pump to run continuously during the vacuum
cycle of a program. You must set a vacuum level for the vacuum level error check described in the set
vacuum level section.
1. Press the “Special Functions” button.Turn the Silver Select Knob until the display reads
“CONSTANT VC PUMP”.
2. Press the “Next” button to look at or change the vacuum pump parameters.
3. Turn the Silver Select Knob to display YES or to display NO. A selection of “yes” will cause the
vacuum pump to run continuously during the vacuum cycle of a program. A selection of “no”
will allow the vacuum pump to cycle based on the vacuum level as described in the set vacuum
level section. If “no“ is selected to cycle the vacuum pump, but the vacuum pump runs continu-
ously during the program cycle, the vacuum level is set too high. The actual level is within 3% of
the selected level, but the pump cannot reach the full selected level.
4. Press the “Next” button to accept the parameters entered.

Vario Press 100 Operations Manual
VP_0206E 17
Special Cool Position
This feature allows the user to select the height that the table lowers to for cooling during the special
cool time. This feature is used only when running a “Spec” special porcelain program. The default
number is 50, with higher numbers lowering the table more and lower numbers lowering the table
less. See chapter three Special Firing Cycle Program for more detail.
1. Press the “Special Functions” button. Turn the Silver Select Knob until the display reads “SP
COOL POSITION”. Press the “Next” button.
2. SPECIAL COOL “TIME=50” is now displayed. Turn the Silver Select Knob to select a new
position value. To determine the value desired, turn the Silver Select Knob until the number
displayed will not go any higher. This highest number represents the table fully down position.
3. Press the “Next” button to accept the parameters entered.
Select Upper or Lower Case Letters
This feature allows you to select whether display reads in all capital letters or lower case and capital.
Selecting all “yes” will cause the furnace to display in all capital letters. Selecting “no” will cause
the furnace to display lower and uppercase lettering.
1. Press Special Functions. Turn the Silver Select Knob until the display reads CAPITAL
LETTERS?
2. Press the “Next” button and turn the Silver Select Knob to display YES or to display NO.
Selecting “yes” will cause only capital letters to be displayed, selecting “no” will allow both
capitals and lower case letters to display.
3. When you are satisfied with your selection, press the “Next” button to continue.
Porcelain Names
The first four types of programs are normal porcelain firing cycles. These four types of programs
have a unique feature, they can be named to aid in the identification of the proper programs to be run.
Most technicians name the program groups for the porcelain brands that they use on a regular basis.
For example:
1. AUTH- named for Authentic
TM
from ceramay
2. VITA- named for Vita
®
porcelain
3. CARA- named for Carrara Vincent
®
from Elephant
4. CREA- named for Creation from Girrbach
Note: Do not use CERM, PRES or SPEC. These are used by the furnace for other types of
programs.

Vario Press 100 Operations Manual
VP_0206E 18
In the procedure for changing names that follows, please be aware of the following items:
•Any number, letter, space, or special character may be selected. Only four characters per name
can be used.
•An underline will indicate the current character position.
•Pressing the “Next” button moves underline to next position.
•Pressing the “Last” button moves underline to last position.
Procedures:
1. Press the “Special Functions” button. Turn the Silver Select Knob until the display reads
PORCELAIN NAMES.
2. Press the “Next” button.The furnace will display the first two porcelain names on the second
line. The underline (cursor) will be under the first character of the first porcelain name.
3. Turning the Silver Select Knob will cause the character above the underline (cursor) to cycle
through the numbers, letters, and other characters. When the character you wish to use in this
position has been reached, press the “Next” button.
4. The underline will move to the next character. Repeat the last step for each character position.
Should you desire to return to a previous character, press the “Last” button until the underline is
under the desired character.
5. When the “Next” button is pressed and the last character in the porcelain name has been selected,
the underline will move to the first character in the next name. Repeat the above procedure for
each of the remaining porcelain names you wish to change.
6. Press the “Next” button to continue after the last character of the fourth porcelain name has been
selected.
Adjusting Calibration to Match Your Porcelain
Porcelain fires according to energy, temperatures and time. Due to differences in insulation packages,
all porcelain furnaces fire slightly different. Even porcelain furnaces from the same manufacturer can
fire porcelains at slightly different temperatures. The Vario Press 100 furnace addresses this problem
by allowing you to customize the calibration. This feature can be used to adjust your furnace, or to
adjust multiple furnaces to fire identically.
The Vario Press 100 furnace comes with a “Certificate of Temperature Calibration.” This
certificate shows the actual temperature in the muffle for several temperatures as displayed by the
furnace. Special instrumentation is used at the factory to achieve these close calibration tolerances.
Adjusting the calibration as described here will allow you to globally adjust the temperature for all
programs instead of one.
The Vario Press 100 calibration can be adjusted for normal high fusing porcelains and for the new
low fusing porcelains. Use the low fusing adjustments if your porcelain fires at or below 800º C/
1470º F. Use the high fusing adjustments if your porcelain fires above 800º C/1470º F. These
adjustments do not affect each other, so both adjustments can be used if you fire both types of
porcelain..

Vario Press 100 Operations Manual
VP_0206E 19
Adjust Low Fusing Porcelain Calibration
(800º C/1470º F or below)
1. Press the “Special Functions” button. Turn the Silver Select Knob until display reads CAL
LOW FUSING.
2. Press the “Next” button. The display will ask LOW OVERFIRES?
3. Turn the Silver Select Knob to display either YES or NO. Selecting “yes” will allow you to
adjust for low fusing porcelain overfires. Selecting “no” will allow you to adjust for low fusing
porcelain underfires.
4. Press the “Next” button.
5. Turn the Silver Select Knob to enter a temperature to adjust. If “yes” was selected in the step
above, this value will adjust downward. If “no” was selected, this value will adjust upward.
6. Press the “Next” button to accept the displayed value of adjustment.
Example: If your porcelain appears to be over fired by 25º, you would answer yes to question 3
above, then dial to 25º and Press the “Next” button. Now, fire again. If your porcelain appears to be
under fired by 10º after making the 25º adjustment, you would again answer yes, then change the 25º
to 15º.
Note: The adjustments do not take effect until a Low fusing program is run. Once the furnace is
turned off the same program used to “Turn on” the adjustment previously must be run again to
reactivate the adjustment.
Adjust High Fusing Porcelain Calibration
(800º C/ 1470º F or above)
1. Press the Special Functions button.Turn Silver Select Knob until display reads “CAL HIGH
FUSING”.
2. Press the “Next” button. The display will ask “HIGH OVERFIRES?”
Select item:
Cal Low Fusing
LOW overfires?
NO
Low temp adj
0°C
Select item:
Cal High Fusing
High overfires?
NO

Vario Press 100 Operations Manual
VP_0206E 20
3. Turn the Silver Select Knob to display either YES or NO. Selecting “yes” will allow you to
adjust for high fusing porcelain overfires. Selecting “no” will allow you to adjust for high fusing
porcelain underfires.
4. Press the “Next” button.
5. Turn the Silver Select Knob to enter the number degrees you would like to adjust the
temperature. If “yes” was selected in the step above, this value will adjust downward. If “no”
was selected, this value will adjust upward.
6. Press the “Next” button to accept the displayed value.
Example: If your porcelain appears to be over fired by 25º, you would answer yes to question 3
above, then dial to 25º and Press the “Next” button. Now, fire again. If your porcelain appears to be
under fired by 10º after making the 25º adjustment, you would again answer yes, then change the 25º
to 15º.
Note: The adjustments do not take effect until a High fusing program is run. Once the furnace is
turned off, the same type of program used to “Turn on” the adjustment previously must be run again
to reactivate the adjustment, otherwise the furnace will go back to its original calibration.
Adjust Press (Temp) Calibration
(This Procedure will adjust the Pressing Program temperature only)
1. Press the “Special Functions” button. Turn the Silver Select Knob until the display reads CAL
Press TEMP.
2. Press the “Next” button the display will ask, “Press Overfires?”
3. Turn the Silver Select Knob to select either yes or no. Selecting yes will allow you to adjust for
pressing overfires. Selecting no will allow adjusting for Press underfires.
4. Press the “Next” button
a. Turn the Silver Select Knob to enter the number degrees you would like to adjust the
temperature. If “yes” was selected in the step above, this value will adjust downward. If “no”
was selected, this value will adjust upward.
b. Press the “Next” button to accept the displayed value.
Press Overfires?
yes
CAL Press TEMP.
High temp adj
0°C