21
Pro Series
Furnace Operations Manual
Special Porcelain
HEAT RISE
HOLD TIME
SLOW
COOLING
COOL
TIME
VACUUM
ENTRY
TIME
SOAK
TIME
SELECT ITEM:
ADD A PROGRAM
Figure 19
Special Firing Cycle Program
Some porcelains require
special firing programs.
The furnace
allows
for programming with
special heat soaks,
different vacuum cycles,
and special cooling.The following procedure describes
how to add a special program.
Procedure:
1. Press the
Change Program
button.
2. Turn the
Select Knob
until ADD A PROGRAM is
displayed. Press the
Next
button to add a program.
7. ENTRY TEMP XXC is displayed. This is the temperature
you want the muffle to be when the porcelain enters.
Press the
Next
button.
8. SOAK TEMP XXXC is displayed. Select the amount of
time required to hold at the soak temperature. This is
the temperature required for soak time. The furnace
will rise to this temperature and hold for the soak time
entered in the next step. Press the
Next
button.
9. SOAK TIME X: XX
is displayed. Press the
Next
button
to continue.
10. HEAT RATE XXC/M is displayed. This is the required
heat rate. Turn the
Select Knob
to the desired heat
rate. Press the
Next
button.
11. FINAL TEMP XXXC is displayed. Press the
Next
button.
12. HOLD TIME X: XX is displayed. Select the amount of
time to hold final temperature. Hold time includes the
total time at the final temperature under vacuum plus
under air. Press the
Next
button to continue.
13. SP COOL TIME X: XX is displayed. This is the amount
oftime desired to hold the porcelain at the
Special
Cool Position
(See page 12). After the hold time, the
table will lower to the position selected in the Special
Functions Menu and hold until the special cool time
temperature is reached. The table will then raise and
hold the porcelain at the special cool time temperature
until the special cool time has expired. Press the
Next
button.
Note:
This feature will add strength to low-fusing
porcelains.
14. LOWER TABLE XXXC is displayed. This is the
temperature to open the furnace and lower the table.
The furnace will remain with the table in the up position
until this temperature is reached in the cooling step.
Press the
Next
button.
15. SP COOL TEMP XXXC is displayed. Select the
appropriate temperature for the special cool time.
If the special cool time temperature is not lower than
the lower table temperature, the table will not lower
after hold time. Press the
Next
button.
16.
COOL TIME X: XX is displayed. This is the desired
cooling time. This setting is the time it takes to lower
the table to the fully down position. The table will be
lowered in evenly spaced steps during the cool time.
Note:
Cool time will not start until the lower table
temperature has been reached or special cool time
has expired. Press the
Next
button.
3. ADD:
will be displayed. Turn the
Select Knob
to find
the program number you want to add your new
program into. If you select a program number that
already has a program entered, you will overwrite the
existing program. Press the
Next
button.
4. Turn the
Select Knob
to find the
SPEC
firing cycle
for this program. Press the
Next
button.
5. ENTER PROG NAME: is displayed on the top line and
the program number with the program type selected
previously will be on the second line.
6. The display will look similar to the previous example.
Notice that the program number, program type, and
the program name just entered are on the first line.
The second line is prompting an entry time.
Select the required entry time. Entry time is the
amount of time to raise the table into the muffle.
The temperature will be raised or lowered to the
entry temperature before entry time begins.
Any program delay
entered under
Special Functions
must expire before entry time begins. The time is now
displayed in minutes: seconds. The table will be raised
in steps evenly spaced during entry time. Press the
Next
button.
12 SYNS – BODY
ADD
Figure 20
38 CERM – BODY ADD
ENTRY TIME 0:00
Figure 21
15946 Pro Series English.indd 21
5/9/08 2:51:11 PM
