Speed Adjustments; Preheat; Hold; Cool - Orton AutoFire AF4TS User Manual

Speed Adjustments

Speed allows the operator to increase or decrease the firing speed of a Cone-fire program. Early ramp rates can be
increased or decreased up to 40%. The final ramp for a Cone-fire program is not chnaged. Preheat ramps are not
affected by the Speed setting. Cooling ramps are not affected by the Speed setting.
F40
FAST
STD
SLOW
S40
An example of the Cone 06 firing schedule with a 40% fast speed is shown below
Cone 06 Rate 1
STD 180C/hr
F 40 252C/hr

Preheat

A Preheat ramp is a fixed heating rate of 33ºC(60ºF)/hour to 93ºC/200ºF. The hold time is variable. The default
setting for the Preheat hold time is zero. When the Preheat hold time is set to zero, there is no Preheat ramp.
The preheat hold time is set in the format of Hours:Minutes. The maximum preheat hold time is 99 hours.59
minutes.

Hold

Allows for an optional HOLD time at the final heating temperature. When the Hold time is set to zero, there is no
Hold at the final heating temperature.
The preheat hold time is set in the format of Hours:Minutes. The maximum preheat hold time is 99 hours.58
minutes.
If the controller heat work function adjusts the final heating temperature, the programmed Hold time will be
performed at the adjusted temperature.

Cool

allows the operator to have an optional cooling ramp for the Conefire programs. The maximum cooling rate is
limited to 180F(100C)/hour. The cooling temperature is fixed at 392F(200C)
The cooling rate is set in units of degrees per hour, degrees per minute or Time to temperature dependent on the
RATE setting on the UNITS screen.
AutoFire Slide Kiln Controller
40% increase to Conefire Ramp rates (excluding preheat and final ramp rate)
20% increase to Conefire Ramp rates (excluding preheat and final ramp rate)
0% change to Conefire Ramp rates
20% decrease to Conefire Ramp rates (excluding preheat and final ramp rate)
40% decrease to Conefire Ramp rates (excluding preheat and final ramp rate)
Target Rate 2
550 85C/hr
550 119C/hr
Speed settings
Target Rate 3 Target
600 100C/hr
600 140C/hr
14
Rate 4 Target
938 60C/hr 998
938 60C/hr 998