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ST315B User Handbook
12
Operating Notes
If the ST315B is programmed to heat the kiln at a faster rate than the kiln
is capable of then the ST315B will turn on full power then wait until the
kiln temperature has risen to the correct temperature before proceeding to
the next ramp or soak segment.
Likewise if the ST315B is programmed to cool the kiln at a faster rate
than the kiln is capable of then the ST315B 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 ST315B is capable of controlled ramps for both heating and cooling.
The type of ramp required is determined by comparing the required soak
temperature to the soak temperature in the previous segment and is shown
on the mimic display.
STOP key operation
If the START/STOP key is pressed during a firing then the firing will be
halted (not paused). Pressing the START/STOP key again will cause the
ST315B to restart the firing from the beginning. The ST315B will look at
the current kiln temperature and if this is greater than the required soak
temperature then the ST315B will automatically
cool
from current temper-
ature to the soak temperature. This may not be what is desired so the
STOP 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
controller is firing (see page 14). This is a better option than using the
STOP key. The segment advance feature (see page 14) is however availa-
ble to recover quickly from STOP key operation if required.
Memory
All programs & necessary data are remembered when the ST315B is turned
off. In the event of power failure during firing the ST315B will automati-
cally resume firing when power is returned (this feature can be disabled: see
installation handbook).
Firi
ng
Delayed Start
The delayed start time period is remembered while the ST315B is turned off.
