Delay Fire
TheDelay Fireprogramsthekiln tobeginfiringlater. Use
ittoadjustthefiringtosuityourscheduleortotake advantage
of lower electric rates at night.
It zeroes outafter eachcompleted firing. To setthe Delay,
follow earlier instructions for entering Cone-Fire or
Ramp-Holdfiringprogram.ThenpressENTER,3.Enterdelay
time in hours/minutes (i.e. 5 hours, 30 minutes = 05.30). To
begin firing, press ENTER twice.
WARNING: Never leave your kiln unattended near
the end of a firing. We cannot guarantee your kiln
against overfiring even though the controller is auto
-
matic.Theoperatorassumesfullresponsibilityforshut
-
ting the kiln off at the proper time.
Temperature Alarm
The alarm beeps when a preset temperature is reached.
Use the alarm to alert you to—
1) lower the lid from venting position.
2) check the witness cone near shut-off time.
3) check the fusing or slumping of glass.
4) remove the knife blade from the furnace at the end of
heat treating.
You can enteronly one alarmtemperature at a time. How-
ever, after the alarm beeps, you can set the alarm for another
temperature,asmanytimesasyouwant,duringthefiring.You
canenterahigherorlowertemperaturethanthecurrenttem-
perature.
Setting Alarm From Idle
1 From IdLE ,pressENTERthen7. AlAr willappearal-
ternating with the last alarm temperature entered.
2 Enter alarm temperature. Then touch ENTER. IdLE
will appear. (Enter 9999 to turn alarm off.)
Whenthealarmsounds,shutitoffbypressingENTER.(Do
not press STOP to turn off the alarm.) If the alarm sounds as
soonasthefurnaceorkilnbeginsfiring,itisbecausethealarm
wassetto0000,oranytemperaturebelowroomtemperature.
Setting Alarm During Firing
1 The alarm beeps while the kiln is firing. Touch 7.
2 Enter the new temperature.
3 Touch ENTER. The kiln will continue firing.
CAUTION: if you touch 7, enter a new tempera
-
ture,and forget to pressENTER, thefiring will stopand
thekiln will begin to cool down.You must press ENTER
after entering the new alarm temperature.
Present Status: Current Segment &
Circuit Board Temperature
“Present Status” displays the current segment of a firing
and temperature of the circuit board.
Knowing which segment you are in is especially useful for
firings with both heating-up and cooling-down segments.
Present Status works with both Cone-Fire and Ramp-Hold.
(See Cone-Fire firing schedules, pages 6-7.)
To use Present Status, press5duringafiring. The follow
-
ing information will display momentarily. Then normal tem
-
perature display will return:
1)Ramp( Ra )orHold( HLd )followedbysegmentnum
-
ber
2) Local Set Point (temperature the controller is trying to
reach to maintain the correct rate)
3) Circuit Board Temperature
High temperatures inthe switch boxcan damage thecon
-
trollercircuitboard. Thecircuitboard isratedfor155°F/68°C
maximumoperatingtemperature.Maximum temperaturefor
rated accuracy is 125°F/52°C. The controller board can oper
-
ate safely at 155°F/68°C, though 125°F/52°C is preferable. If
necessary, exhausthot airfrom theroom tolower boardtem
-
perature.Whenfiringseveralkilns,positionthematleastthree
feet apart to allow adequate air circulation.
The DTC 1000 maximum operating temperature is the
same as theearlier DTC600 and800 series. Thenew Circuit
BoardTemperaturefeaturehasbeenaddedmerelytohelpyou
attain maximum life from your controller.
Checking Circuit Board
Temperature From IdLE
1 Press ENTER.
2 Press0repeatedlyuntil bdt (boardtemperature)ap
-
pears.
3 Press ENTER.The boardtemperature will appear,fol
-
lowedby STOP ,andthenthefiringchambertemper
-
ature.
Power Failures
The DTC 1000 handles a power failure in two ways:
1) A PF display, alternating with firing temperature,
meansfiringwasinterruptedbyabriefpower failure.The fir
-
ing will continue. PF is only to inform you of a brief power
failure.PressENTER,andnormal temperaturedisplay willre
-
turn.
2) A steady ErrP display means firing was interrupted by
anextendedpowerfailure.When ErrP appears,thekilnheat
-
ing elementswill stay shutoff. Thefollowing threesituations
cause the ErrP message:
a) The power failure lasted longer than 1
1
2
hours.
b)Thekilncooled morethan250°F/139°Cwhilethepower
was off.
c) Cone-Fire mode only: the power failed within
100°F/56°C of the shut-off temperature.
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