Segment 3 lowers temperature to 800°F/426°C, the typi- cal casting temperature for silver. (Most types of gold cast at 900°F / 482°C.)
Note: Casting temperature depends on the size of the mold. The temperatures above are only a guide. 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 the kiln. Heat the kiln to 300°F / 148°C and hold it at that temperature for at least one hour.
CAUTION: 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 carbon 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. (Do not leave the tray in the kiln!)
Heat the mold to the temperature recommended by your jewelers’ supply house where you pur- chased 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 reason we recommend that you periodicallyfire 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).
10
Display
Messages
(Page 9) Ready for you to enter an alarm temperature. When the kiln reaches that tempera-
ture, the alarm will sound. ( 
also flashes when the alarm sounds.)
(page 9) Ready for you to edit the target temperature of the current
Fired to completion.
(page 4) Delay is a | |
starts the firing when the time runs out. | |
or | (and temperature) (pages 6, 8) |
The controller is ready for you to enter the target temperature (the temperature that the kiln will fire to). Each segment in
Full power firing rate. At this setting the kiln
will fire at its fastest rate. There are two ways to se- | |||
lect full power: |
|
| |
1) Select |
| in |
|
|
| ||
2) Select a rate of 1799°F/999°C at the | prompt | ||
in
the | key once from |
| . |
| will ap- |
|
| ||||
pear. |
|
|
|
|
|
(pages 6, 8) Hold time of a segment, shown in hours and minutes. (Example: 2 hours and 15 minutes = 02.15)
(Page 8) Add Hold Time: During a firing, you
can extend the hold time of a segment without hav-
ing to first stop the firing to reprogram the controller. | |
(page 3) The controller is ready for you to en- | |
ter a program or to begin a repeat firing. |
|
Firing has begun. A moment after | ap- |
pears, you will hear the relay(s) clicking. |
|