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ST215 User Handbook
10
If the ST215 is programmed to heat the kiln at a faster rate than the kiln is
capable of then the ST215 will turn on full power then wait until the kiln tem-
perature has risen to the correct temperature before proceeding to the next
ramp or soak segment.
Likewise if the ST215 is programmed to cool the kiln at a faster rate than the
kiln is capable of then the ST215 will apply zero power then wait until the kiln
has cooled to the correct temperature before proceeding to the next ramp or
soak segment.
Kiln too slow
Heating & Cooling Ramps
The ST215 is capable of controlled ramps for both heating and cooling. The
type of ramp required is determined by comparing the required soak temper-
ature to the soak temperature in the previous segment and is shown on the
mimic display.
►
n
Key Operation
If the
►
n
key is pressed during a firing then the firing will be halted (not
paused). Pressing the
►
n
key again will cause the ST215 to restart the
firing from the beginning. The ST215 will look at the current kiln temperature
and if this is greater than the required soak temperature then the ST215 will
automatically
cool
from current temperature to the soak temperature. This
may not be what is desired so the
►
n
key should only be used to halt the
firing in an emergency.
The program can be paused or program data can be changed while the con-
troller is firing (see next section). This is a better option than using the
►
n
key. The program advance feature is however available to recover quickly
from
►
n
key operation if required.
Memory
All programs & necessary data are remembered when the ST215 is turned
off. In the event of power failure during firing the ST215 will automatically
resume firing when power is returned (this feature can be disabled: see In-
stallation Handbook).
Delayed Start
By default the delayed start time period is initialised to 00:00 for each firing.
The ST215 can however be configured to remember the delayed start time
period (see Installation Handbook).
Operating Notes
