8
/
See your jewelry supply dealer for temperature
recommendations.
Burnout Instructions
Place a metal tray inside the kiln on three ½” posts.
Place the mold on a wire mesh screen on top of the
tray. The mold’s sprue hole should be down. The
tray will catch melting wax as it drips from the sprue
hole.
Keep the kiln’s vent hole(s), if any, open during wax
elimination. If the kiln has no vent hole, leave the
door open ½”. This allows fumes to escape from the
kiln. Heat the kiln to 300°F/148°C and hold it at that
temperature for at least one hour.
Note:
Do NOT heat the wax above 300°F/148°C.
Hold at 300°F/148°C for at least one hour. During
this hour, the wax will melt from the mold and drip
into the tray. If the kiln gets hotter than
300°F/148°C, the wax may smoke and deposit car-
bon inside your kiln, causing expensive damage.
After one hour at 300°F/148°C, open the kiln. Re-
move the mold and wax tray. Pour the wax from the
tray and leave the tray out of the kiln until your next
wax elimination.(Donot leavethetray in thekiln!)
Heat the mold to the temperature recommended by
your jewelers’ supply house where you purchased
the mold material. This is usually around
1350°F/732°C.
Lower the temperature to the casting temperature
of the metal. Hold at that temperature until you are
ready to begin casting. Remove the mold with tongs.
Wear protective gloves and safety glasses.
Saving a Carbon-Damaged Kiln
If you follow the above directions, your kiln should be safe
from wax damage. In some cases, a small amount of carbon
may form on the walls over a period of time. This is due to the
burning of wax residue that was left in the mold. For this rea-
son we recommend that you periodically fire the kiln to
1500°F/815°C as follows:
Open the vent cover(s) or leave the door ajar ½”.
Fire the kiln empty to 1500°F/815°C at a rate of
300°F/166°C with a one hour hold (01.00).
Error Messages
bAdP / Bad Programming
The kiln will not fire the because the User Defined pro-
gram just entered has 1) a rate of 0000 in segment 1, or 2) the
target temperature in segment 1 is lower than the current
temperature.
EtH / Electronics Too Hot
The temperature of the electronic circuit board is above
185°F/85°C. This could damage the controller, so the firing
has been stopped. To prevent this, keep the firing room
cooler. Use better ventilation.
FaIL / Thermocouple Failure
The thermocouple, or temperature sensor, failed during
firing. Causes:
I
Defective thermocouple or disconnected/loose wires
I
Defective controller
I
Electrical noise
Thermocouple Paperclip Test
Check the thermocouple wire
connections. (See your kiln in-
struction manual.) If connections
are tight, perform this test:
UNPLUG the kiln or disconnect the power. Re-
move the controller. Remove the two thermocouple
wires from the back of the controller.
Cut a thin paperclip in half. Insert a U-shaped
paperclip piece, or other piece of thin wire, where
you removed the thermocouple wires.
Plug in the kiln. If the controller displays room tem-
perature, replace the thermocouple. If it shows
, replace the controller.
tCR / Thermocouple Reversed
Thermocouple lead wires are reversed. Check that the
thermocouple lead wires are connected to the correct termi-
nals. See your kiln's wiring diagram.
FtL / Fired Too Long
This message appears when both of the following condi-
tions are met:
I
The temperature rise is less than 27°F/15°C per hour
I
The firing is 2 hours longer than programmed
See “Controller turns on. No heat in kiln,” page 11.
PF 1 / Power Failure
The power failed during a cooling segment, and the kiln
cooled past the target temperature while the power was off.
The kiln will not resume firing. To return to the
dis-
play, press any key.