Alarm; Delay; Delay Fire; Temperature Alarm - Paragon DTC 1000 Operation & Maintenance Instructions Manual

Delay Fire

The Delay Fire programs the kiln to begin firing later. Use
it to adjust the firing to suit your schedule or to take advantage
of lower electric rates at night.
It zeroes out after each completed firing. To set the Delay,
follow earlier instructions for entering Cone-Fire or
Ramp-Hold firing program. Then press ENTER , 3 . Enter delay
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. The operator assumes full responsibility for shut-
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 enter only one alarm temperature at a time. How-
ever, after the alarm beeps, you can set the alarm for another
temperature, as many times as you want, during the firing. You
can enter a higher or lower temperature than the current tem-
perature.

Setting Alarm From Idle

1 From
, press ENTER then 7 .
IdLE
ternating with the last alarm temperature entered.
2 Enter alarm temperature. Then touch
will appear. (Enter 9999 to turn alarm off.)
When the alarm sounds, shut it off by pressing ENTER . (Do
not press STOP to turn off the alarm.) If the alarm sounds as
soon as the furnace or kiln begins firing, it is because the alarm
was set to 0000 , or any temperature below room temperature.

Setting Alarm During Firing

1 The alarm beeps while the kiln is firing. Touch
2 Enter the new temperature.
3 Touch ENTER . The kiln will continue firing.
CAUTION:
if you touch
ture, and forget to press
the kiln will begin to cool down. You must press
after entering the new alarm temperature.
will appear al-
AlAr
ENTER .
IdLE
7 .
7 , enter a new tempera-
, the firing will stop and
ENTER
ENTER
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, press 5 during a firing. The follow-
ing information will display momentarily. Then normal tem-
perature display will return:
1) Ramp ( ) or Hold (
Ra
ber
2) Local Set Point (temperature the controller is trying to
reach to maintain the correct rate)
3) Circuit Board Temperature
High temperatures in the switch box can damage the con-
troller circuit board. The circuit board is rated for 155°F/68°C
maximum operating temperature. Maximum temperature for
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, exhaust hot air from the room to lower board tem-
perature.When firing several kilns, position them at least three
feet apart to allow adequate air circulation.
The DTC 1000 maximum operating temperature is the
same as the earlier DTC 600 and 800 series. The new Circuit
Board Temperature feature has been added merely to help you
attain maximum life from your controller.
Checking Circuit Board
Temperature From IdLE
1 Press
ENTER .
2 Press 0 repeatedly until
pears.
3 Press
ENTER . The board temperature will appear, fol-
lowed by , and then the firing chamber temper-
STOP
ature.

Power Failures

The DTC 1000 handles a power failure in two ways:
1) A display, alternating with firing temperature,
PF
means firing was interrupted by a brief power failure. The fir-
ing will continue. is only to inform you of a brief power
PF
failure. Press ENTER , and normal temperature display will re-
turn.
2) A steady display means firing was interrupted by
ErrP
an extended power failure. When
ing elements will stay shut off. The following three situations
cause the message:
ErrP
a) The power failure lasted longer than 1
b) The kiln cooled more than 250°F/139°C while the power
was off.
c) Cone-Fire mode only: the power failed within
100°F/56°C of the shut-off temperature.
) followed by segment num-
HLd
(board temperature) ap-
bd t
appears, the kiln heat-
ErrP
hours.
1
2
13