to 2167°F as you had programmed. Skip to the next seg-
ment, which is a slow cooling one. If the firing does not in-
clude a slow cooling segment, and you are in the last seg-
ment, Skip Segment will not end a Hold. Press the
Start/Stop
key to end the firing.
Pointer:
Make a note of the temperature at which
the cone bent. Program that temperature for the
next firing. This is the type of information that
should be recorded in a kiln firing log book if you
have one.
You can see the segments in the Cone-Fire firing sched-
ules on pages 30-31.
The
[SKIP]
option does not skip from a ramp to a hold
of the same segment. It skips to the next segment from ei-
ther a ramp or hold of the current segment.
If the current segment has already started its hold time,
you can edit only the hold time. See below.
Note:
If you wait 60 seconds without touching a key
during editing, the controller will exit editing with-
out changing the settings. The firing will continue.
Skip to the Next Segment
1
During a Cone-Fire or Ramp-Hold firing, press
the
Up Arrow
.
[SKIP]
will appear.
2
To skip to another segment, press
Start/Stop
.
The next segment will appear. Each time you press
the
Up Arrow
, another segment will appear, if an-
other has been programmed, followed by
CANC
(Cancel).
3
Press the
Up Arrow
until the segment that you
want to skip to appears. Press
Start/Stop
. The
kiln will continue to fire in the segment you se-
lected.
4
If you don’t want to skip to another segment after
all, press the
Up Arrow
until
CANC
appears.
Then press
Start/Stop
. The kiln will continue to
fire as before.
Change the Hold Time of the Current Segment
1
During a Cone-Fire or Ramp-Hold firing, press
the
Up Arrow
twice.
[HLDT]
(Hold Time) will ap-
pear.
2
To change the hold time of the current segment,
press
Start/Stop
.
3
Use the arrow keys to change the hold time. Each
time you press an arrow key, the hold time will in-
crease or decrease by 5 minutes.Then press
Start/Stop
. (If you don’t want to change the hold
time after all, leave the setting alone and press
Start/Stop
.)
Change the Target Temperature
of the Current Segment
1
During a Cone-Fire or Ramp-Hold firing, press
the
Up Arrow
3 times.
[CHGT]
(change tempera-
ture) will appear. Press
Start/Stop
.
2
Use the arrow keys to change the temperature.
Then press
Start/Stop
.
Cone-Fire Options
These options appear only if a Cone-Fire program has
been selected. If your controller doesn’t have Cone-Fire
mode, skip to General Options, next page.
OFST / Cone Offset
Calibrate Cone-Fire to a Witness Cone
Sometimes the pyrometric cones programmed in
Cone-Fire do not match the bending of the witness cones.
Cone Offset will adjust Cone-Fire to bend the cones.
Note:
TCOS, Thermocouple Offset, page 20, ad-
justs all temperature readings. Cone Offset
changes only the last heating segment of all the
Cone-Fire firings. You can see the Cone-Fire
schedules on pages 30-31.
Follow these guidelines before deciding to use Cone
Offset:
I
The thermocouple (temperature sensor) must protrude
into the firing chamber the correct distance: about ¾”
for ¼” wide thermocouples, ½” - 5/8” for 1/8” wide
thermocouples.
I
Keep shelves 1” - 1 ½” away from the thermocouple.
I
Keep pyrometric witness cones at least 2” away from
heating elements.
I
Place witness cones in several locations in the kiln.
How to Use Cone Offset
Cone Offset changes the shut-off point of the cone by the
degrees of temperature shown in the chart, next page.
1
First, program a Cone-Fire. See page 10.
2
From
[IDLE]
, press the
Up Arrow
repeatedly un-
til
[OFST]
appears.
Note:
With each
Up Arrow
key press, you will see
the next option. When you see
[EXIT]
, press the
Up Arrow
again to see more options. When
[OPT2]
appears, press
Start/Stop
. That will take
you to more options.
3
When you see
[OFST]
press the
Start/Stop
key.
The current Cone Offset adjustment number will
appear.
4
Using the arrow keys, select a new adjustment
number (see chart, next column). Then press the
Start/Stop
key.
[IDLE]
will appear.
Sentry Xpress 5 Cone-Fire / Ramp-Hold
16
Do not leave your kiln unattended during operation.
