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6.5 Firing Program
Controller ST535 can store up to 32 programs.
Each program can have up to 32 segments.
A firing segment comprises of a ramp rate (degrees per hour), the
final segment temperature, and a soak period.
Two segments can be used for simple firing (biscuit firing for
example) or several segments can be used per program for
complex firing (crystal glazing or glass-making for example).
The ST535 ramps the kiln temperature at the required ramp rate
until the kiln reaches the soak / target temperature It then soaks
(dwells) at the soak temperature for the soak time. It then runs the
next segment until the end of the program is reached.
The ST535 is capable of both positive (heating) ramps and negative
(cooling) ramps - as used in glassmaking for annealing. The type of
ramp is clearly shown on the mimic display during firing.
The ramp rate is settable in the range 1°C/hour to 999°C/hour or
FULL (full power is for uncontrolled, fast heating. To enter full
power you must increase heat rate to 1000°C/hour. Display will
then show FULL).
Entering "0" as ramp rate will show "End" (end of program).
The soak / target temperature is settable over the range 0 to 1200
or 1300°C (depends on kiln model).
The soak time is settable over the range 00.00 (no soak) to 99
hours 59 mins.
Note: during soaking the ST535 display alternates every 5
seconds between kiln temperature and soak time remaining.
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