Page
ST215 User Handbook
8
Firing
To start a firing press the
►
n
key. The firing indicator lamp will flash.
Hint: it is good practice to check that the program is correct by press-
ing the ► key & checking the program number & program contents
before pressing the ►
n
key to start a firing. It is also a good idea to
have a written record of the contents of the firing programs kept and
displayed near the kiln especially if there is more than one user of the
kiln.
With the firing indicator flashing an optional
start delay up to 99 hours: 59 minutes can
be entered with the
▲ & ▼ keys.
Information: The ST215 operates by calculating the amount of energy required by the
kiln every 30 seconds (installer adjustable). If for example 40% of full energy is
required to maintain a particular ramp rate or a particular soak temperature then the
ST215 will apply heating power to the kiln for 12 seconds every 30 seconds. The kiln
heating indicator will light for 12 seconds every 30 seconds. If the kiln has a contactor
then a loud click will be heard both when the kiln heating indicator lights up and when
it goes out. If full heating power is required then the kiln heating indicator will remain
lit. If full cooling is required the kiln heating indicator will remain off.
After 5 seconds, or immediately if the
►
n
key is pressed again, the firing will
commence and the firing indicator lamp will remain lit.
To stop the firing prematurely at any time press the
►
n
key again. The fir-
ing indicator lamp will go out.
Note: during ramping the ST215 will perform either controlled heating or con-
trolled cooling - as indicated on the mimic display. During soaking the
ST215 display alternates every 15 seconds between kiln temperature and
soak period remaining. At the end of each segment the segment number
display will be incremented.
