Mirror Test
Knowing how much Pre-Heat to use is a matter of experi
-
ence. There is no substitute. However, this mirror test will
help. Occasionally during
Pre-Heat, hold a mirror near
the top peephole. (Be careful
to avoid burns.) The mirror
mustbeatroomtemperature,
not hot, so hold it near the
peephole foronly several sec
-
onds.
If the mirror fogs, mois
-
ture is still escaping from the
ware. When the mirror no
longer fogs, make a note of
howmuchPre-Heattimeyourwareneeded.Thatwillhelpyou
determine how much Pre-Heat to use next time.
If you decide to interrupt Pre-Heat and begin firing to the
cone in Cone-Fire, press STOP. Follow the steps above that
you used to program Pre-Heat. But instead of entering
Pre-Heat hold time, enter 00.00. Press ENTER to go back to
IdLE . Press ENTER twice to begin firing again.
AOP
Theoptional“AOP”(AuxiliaryOutput)isanelectricalout-
let, usually mounted in thekiln’s switch box. TheAOP outlet
can power a kiln vent or other appliance. If your kiln is
equipped with AOP, AOP will appear in Cone-Fire after
HoLD . (If AOP does not appear in the display, your kiln is
not equipped with AOP.)
WhensettoOFF,theAOPoutletreceivespowerduringthe
Cone-Fire firing. At the end of the firing, the AOP shuts off.
When set to On, the AOP remains powered during both
ConeFire firing andcooling. Itshuts offafter thekilncools to
°150F/66°C.
TIP: For slow cooling in Cone-Fire, select AOP OFF.
Adjusting AOP in Cone-Fire
1 AfterprogrammingCone,SpeedandHold, AOP will
appear, alternating with On or OFF .
2 To change the setting, press 1, then ENTER. CPL
will appear, followed by IdLE .
Advanced Cone-Fire
Built-in Cone Table
Foryourconvenience,thecontrollercanlookupapyromet
-
ric cone temperature. Do not be concerned, however, if your
kiln’sconeshut-offtemperaturedoesnotmatchthetempera
-
ture inthe ConeTable. Thetemperature of a cone varies de
-
pending on firing speed.
1 From IdLE ,touchENTERthen9. ConE willappear,
then the cone currently programmed in Cone-Fire
Mode.
2 Enter the pyrometric cone number you are looking
up. Then touch ENTER. The display will show the
cone temperature. If you enter a non-existent cone
number, the display will show ConE , ready for you
to enter a different cone number.
Cone temperatures displayed are for self-supporting
cones fired at a rate of 108° F. during the last hour.
Firing History in Cone-Fire
Whenthe kilnfiresto completion, CPLt withflash,alter
-
nating withtotal firingtime in hours/minutes.To viewthe fi
-
naltemperaturethekilnreached,pressENTER. IdLE willap
-
pear. Press ENTER, then 6 (Program Review). Final firing
temperaturewilldisplayalongwiththecone,speedandhold.
Fine-Tuning Shelf Cones
With Cone Offset (CnoS)
SometimesthepyrometricconeprogrammedinCone-Fire
doesnotmatchthebendingoftheconeonthekilnshelf.Using
“Cone Offset,” you can adjust Cone-Fire to fire hotter or
cooler.
IMPORTANT: ConeOffset adjusts the firing temper
-
ature individually for each pyrometric cone number.
Adjusting one cone has no effect on the other cones. To
adjust all the cones equally, use “Thermocouple Off-
sets,” page 14.
Forinstance,thecontrollerfiresshelfcone018toaperfect
sixo’clockbend.Butatcone6,theshelfconeover-fires.Using
Cone Offset, you could lower cone 6firing temperature with-
out affecting the perfect results you are getting at cone 018.
TIP:Before using ConeOffset, check thatthe thermo-
couple is protruding into the firing chamber by at least
1
2
"-
5
8
".Sometimesbumpingashelfagainstthethermo-
couple pushes it out of the firing chamber, thereby pre-
venting accurate temperature readings.
How to Use Cone Offset
1 From IdLE , press ENTER.
2 Press 0until CnoS appears.
3 PressENTER. ConE willappear,alternatingwiththe
last cone number entered in Cone-Fire. Enter the
new cone number.
4 Press ENTER. °FOS (or °COS forCelcius) willap
-
pear, alternating with 9000 oran adjustment num
-
ber.
5 Enter adjustment number (see chart). Then press
ENTER. CPL will appear, then temperature and
IdLE .
Youcanraiseorlowerfiringchambertemperatureforeach
conefrom1- 50°F/1- 28°C.Place00infrontofthenumberto
make the kiln fire hotter. Place 90 in front to make it fire
cooler.
8
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