14
SinterPro
Furnace Operator’s Manual
To Program And Operate – Three Stage Program
1. Follow Two Stage Program, Steps 1 – 4.
2. Press
ENTER / REVIEW
.
STAGE 2
light turns off,
STAGE 3
and
HEAT RATE
lights turn on. Main Display
shows three heat rate choices. Choose one:
A. Select heat rate between
1°F – 54˚F / min
(1°C – 30°C / min)
.
B. Select “
FCL
” or “
CCL
” to program the cooling
mode.
C. Select
“NO”
to turn off STAGE 3 and 4. This will
result in a Two Stage program.
NOTE: The HEAT RATE cannot be programmed to
“COOL” in STAGE 1 – only in STAGE 2, 3 or 4.
3. Press
ENTER / REVIEW
.
HEAT RATE
light turns off
and
TEMP
light turns on. Use the arrow keys to scroll
for the temperature required: heating temperature up to
a max. of 1570°C / 2858°F or cooling temperature down
to a minimum of 137°F (58°C).
4. Press
ENTER / REVIEW
.
TEMP
light turns off and
HOLD TIME
light turns on. Use the arrow keys
to program the time needed to hold at the above
temperature (0 – 4hrs.).
5. For three stages, the furnace must be programmed not
to use STAGE 4. Follow these steps:
A. After completing Step 4, press
ENTER / REVIEW
.
STAGE 3
light turns off,
STAGE 4
and
HEAT RATE
lights turn on.
B. Press either
Arrow
key, Main Display shows “....5,
4, 3, 2, 1, COOL, NO.”
Select “NO” to program
the furnace
not
to use STAGE 3 or 4
.
C. If
Fast Cooling
is desired, scroll to “
FCL
” or if
Controlled Cooling
is desired, scroll to “
CCL
”
instead of “
NO
”. This will allow natural cooling
down to around 900°C, then progressively lower
the lift platform automatically to allow cooling air
into the muffle at approximately 15°-20°C/minute
rate. Your work will be retrievable sooner. (FCL or
CCL can only be the last stage of a program, so the
NO entry is not required in this case).
CAUTION: THE TABLE WILL AUTOMATICALLY LOWER
VERY SLOWLY. BE ADVISED THAT THE MATERIAL
TRAYS AND THE LIFT PLATFORM INSULATION ARE
TOO HOT TO SAFELY TOUCH WITH YOUR HAND. USE
FORCEPS AND INSULATED GLOVES WHEN HANDLING
THE SINTERING TRAYS.
6. All necessary information for this program is now
entered.
7. To run the program immediately, press
START / STOP
.
8. To delay the start of the program (see One Stage
Program, Step 3), press
DELAY START
.
NOTE: If DELAY START key is pressed while a program
is running, the time remaining for completion of the
program will appear on the Main Display for 5 seconds.
NOTE: It is recommended to wait for muffle to cool
below 300˚C / 572˚F before initiating a new firing cycle
to avoid thermal shock to your work.
Sample Three Stage Program
(program
with
cooling)
Heat Rate
Temp
Hold Time
Stage 1
30°C (54˚F)
1000°C (1832°F)
:10
Stage 2
10°C (18°F)
1530°C (2786°F)
2:00
Stage 3
5°C (9°F)*
250°C (482°F)
(n/a)
Stage 4
NO
(n/a)
(n/a)
To start immediately, press
START / STOP
.
Follow the same programming procedures if a three or four
stage program is desired.
NOTE:
When the temperature is set to a lower temperature
than in the previous stage, the furnace ignores the
programmed HEAT RATE (except for “NO”) and
automatically cools to the pre-set temperature. The time
required for the cooling stage is determined by the pre-set
temperature. The lower the temperature, the more time
needed to cool down.
NOTE:
Press
DELAY
button to start after a pre-set delay
time elapses. (See SAMPLE ONE STAGE PROGRAM to
program DELAY START time.
Running A Program
NOTE:
Press the
START/STOP
button to initiate the
program. If the Lift platform is in the down position pressing
the Start/Stop button will cause it to begin rising to the
closed position. Make sure your sintering trays are in
position in the center of the firing platform before initiating
the firing cycle.
NOTE:
At the end of the firing cycle the appropriate number
of Stage LEDs will be ON, and the Green “Ready” LED will
be lit to signify the firing cycle is complete.
Technically the
firing cycle is still active until you press the Start/Stop
button to extinguish the Ready LED and halt the periodic
beeping.
This is useful if you have an overnight run so that
you have confirmation that the cycle completed normally,
even if it is hours later.