Skip To The Next Segment; Change Hold Time; Change Target Temperature; Cone-Fire Options - Sentry Xpress 5.0 Instructions For Use Manual

Sentry Xpress 5 Cone-Fire / Ramp-Hold
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 option does not skip from a ramp to a hold
[SKIP]
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]
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.
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.)
16
will appear.
(Hold Time) will ap-
[HLDT]
Do not leave your kiln unattended during operation.
Change the Target Temperature
of the Current Segment
1
During a Cone-Fire or Ramp-Hold firing, press
the Up Arrow 3 times.
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:
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.
Keep shelves 1" - 1 ½" away from the thermocouple.
Keep pyrometric witness cones at least 2" away from
heating elements.
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 appears.
[OFST]
Note: With each Up Arrow key press, you will see
the next option. When you see
Up Arrow again to see more options. When
appears, press Start/Stop. That will take
[OPT2]
you to more options.
3
When you see
[OFST]
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]
(change tempera-
[CHGT]
, press the
[EXIT]
press the Start/Stop key.
will appear.