Keep the kiln lid or door closed when the kiln is not in use. 9
Setting the Alarm From IDLE
1 From [IDLE], press 7. [ALAR] will appear alternat
-
ing with the last alarm temperature entered.
2 Enter new alarm temperature. Press ENTER.
[IDLE] will appear. (To disable the alarm, set the
alarm temperature to 0.)
Setting the Alarm During Firing
1 The alarm beeps while the kiln is firing. [ALAR] will
appear, alternating with the temperture. Press 7.
2 Enter the new temperature. (To disable the alarm,
set the alarm temperature to 0.)
3 Press ENTER. [ALAR] will disappear, and the kiln
will continue firing.
If you touch 7, enter a new temperature, and forget to
press ENTER, the controller will continue firing without
resetting the alarm.
[ALAR] will continue alternating with
the kiln temperature.
Question The alarm on my Sentry sounds a min
-
ute into each firing. Why is the alarm going off?
Answer The alarm was set to a temperature below
the current temperature. To deactivate the alarm
for your next firing, set it to 0.
The 8 Key / Estimating the Firing Cost
The Sentry controller can figure the electrical cost of a
firing. Set up the controller as follows:
In the
[CENT] option, enter the cost of a kilowatt-hour
of electricity. See page 23.
In the
[KW] option, enter the wattage for your kiln. See
page 23.
After the kiln fires to completion,
[CPLT] will flash.
Press the 8 key;
[IDLE] will appear. Press again; the cost
of electricity to fire the last load will appear. To return to
temperature display, press ENTER.
Note: If you enter the kiln wattage in the
[KW] op
-
tion but you do not enter cost per kilowatt-hour in
the
[CENT] option, the controller will display kilo
-
watt-hours instead of firing cost.
Note: By pressing the 8 key during a firing, you can
seehowmuchthecostincreasesasthefiring
progresses.
Pointer: If you wonder how much Slow Cooling
adds to the cost of a firing, press the 8 key before
Slow Cooling begins, and press it again after the
kiln has fired to completion.
The 9 Key / Look Up Cone Numbers &
Skip a Segment
Cone Table
Look up a cone temperature with the 9 key. (See the
next page for information on cones.)
1 From [IDLE] , press 9. [CONE] will appear, then
the cone, if any, currently programmed in
Cone-Fire.
2 Enter a pyrometric cone number. Press ENTER.
The display will show the temperature for that cone.
If you enter a non-existent cone number, the display
will repeat the last cone number that you looked up.
Note: Do not be concerned if the actual cone
shut-off temperature does not match the Cone Ta-
ble. The temperature of a cone varies with firing
speed. The cone temperatures in Cone Table are
for self-supporting cones fired at a rate of 108°F /
60°C per hour during the last hour of firing.
Skip a Segment
Skip Segment works only during a firing. It jumps from
the current segment to the next one.
To skip a segment, press 9.
[SKIP] will appear alternat-
ing with the number of the next segment. Press ENTER.
If you change your mind and don’t want to skip that seg
-
ment, wait 10 seconds without pressing any key. You will
exit the Skip option, and the firing will continue in the same
segment as before.
Skip More Than One Segment
1 Press 9. [SKIP] will appear alternating with the
number of the next segment.
2 Press the 1 (or 3) key. Keep pressing the 1 (or 3) key
to scroll through the available segments. When you
see the segment you want to skip to, press ENTER.
The temperature display will return, and the kiln
will fire in your chosen segment.
Note: As you scroll through the available seg
-
ments, one of the options is
[CANC] (Cancel). If
you don’t want to skip to a different segment after
all, press ENTER when
[CANC] appears.
Skip Segment in Cone-Fire
See the segments in the Cone-Fire firing schedules on
pages 32 - 33. Reasons to skip a segment in Cone-Fire:
I
To skip out of Pre-Heat and begin the cone firing. You
might do this if the ware is dry and ready to fire before
Your Sentry can give you the electrical cost of a firing.
Photo by Nick Casberg.
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