Firing requires a kiln to reach certain temperatures at a certain rate of speed. Firing may also require that these temperatures be held or maintained for a certain period of time. The Set-Pro is designed to control these operations automatically. How fast you reach temperatures, the temperatures you want to reach and any soak or holds times at these temperatures is the information you will program into your Set-Pro control.
The big question is…….Where do you find this information?
For starters, Evenheat includes glass firing data from various glass manufacturers in each new kiln. This firing information gives the rates of temperature increases (or decreases), what temperatures you need to achieve for the type of firing you want and any associated soak or hold times that help guarantee success. It’s all there. This same firing data is also available on our Technical page. You may also want to check glass manufacturers web sites as most include this information.
Is this firing information easy to use? Yes and no. For those with experience it’s quite easy. These folks use it more as a guide than a directive from on-high. For those new to the process it tends to get intimidating and muddled sometimes. The only thing we can say is relax, learn and view this information for what it is: general firing information. It’s not etched in stone and you’re likely to adjust it at some point. While glass firing is not difficult it does require that you have a basic understanding of the firing process.
Quick note: A grouping of rate of temperature change, the temperature you’re going to and any soak/hold time is called a segment. You will program your control with this in mind.
Developing Your Program
We have chosen to use a Uroboros full fuse, 3/8″ thick as our sample program. As we look over the Uroboros firing guidelines we find a table labeled “Activity: Full Fuse”. Perfect! Uroboros gives us the temperatures we need to go to, the speed we use to get to these temperatures and the amount of time we should hold or soak at these temperatures. It’s everything we’re looking for.
Rate = 250
Temperature = 1000
Hold = 30
Rate = 250
Temperature = 1450
Hold = 45
Rate = FULL
Temperature = 1000
Hold = 60
Rate = 60
Temperature = 800
Hold = 0
Rate = 120
Temperature = 600
Hold = 0
Rate = 200
Temperature = 200
Hold = 0
You have now developed your firing program based on Uroboros firing information. Let’s program the Set-Pro!!
Programming the Set-Pro
- Be sure your kiln is plugged in. Throw the power switch located on the red control panel to on. The display will illuminate and read “ErrP”. Press the Enter key one time and the display will read kiln temperature along with “Idle”. This is telling us that we’re not firing and the control is simply waiting.
- Press the Enter Key one time. The display will read USrX (X being the number 1, 2, 3 or 4). The Set-Pro allows you to program and store up to 4 separate programs. At this point, it’s asking you which of the 4 programs you want to use. For this example let’s use 1. Use the up and down arrows to choose 1.
- Press the Enter key one time. “SEG” along with a number
(1 through 8) will appear. The Set-Pro wants to know how many firing segments you wish to use. As we have found out, our sample program requires us to use 6 segments. Use the up and down arrows to choose 6.
- Press the Enter key one time. “rA 1” appears in the display. This is asking for the rate or speed of temperature change needed in segment 1. From the firing information developed above we see a rate for our first segment is 250°F/hr (the Set-Pro always programs rate in degrees per hour). Use the arrow keys to make the display read 250.
- Press the Enter key one time. “°F 1” appears in the display. This is asking for the temperature we want to go to in segment 1. Our firing information tells us we want to get to 1000° in segment 1. Use the arrow keys to make the display read 1000.
- Press the Enter key one time. “HLd1” appears in the display. This is asking us how long we want to soak or hold at 1000°F in segment 1. Our firing information shows that we don’t want to soak at all (0 minutes). Use the arrow keys to make the display read 00.00.
- Press the Enter key. “rA 2” appears in the display. Since we have completed putting in the firing information for segment 1 the Set-Pro is now asking us to program the firing information for segment 2.
- When you have completed programming all the remaining segments the Set-Pro will display “Redi”. This means you’re ready to fire. Simply press the Start/Stop key one time to begin the firing.
The Set-Pro offers a range of “On-the-Fly” features that allow you to add time to a soak/hold, add temperature or skip ahead during the firing process. These features add a great measure of flexibility and come in handy as you develop your firing experience.