A Rapid Way to
Scroll Numbers
During programming, hold an arrow key down several seconds, and numbers will begin to scroll rapidly. Ordi-
narily, you would press 
to raise a number and
to lower it. But sometimes it is faster to press the opposite key. This is because the numbers scroll below
0000 to the highest number, and vice versa. Examples:
■To program a 99.59 hour Hold when the display shows
00.00, press the 
once.
■To program a FULL rate when the display shows 0000,
press the 
once.
■To program a temperature of 200°F when the display
shows 1800°F, press the 
. That is faster than
pressing the 
.
Program Review &
Repeat Firing
Program Review lets you check that the information programmedinto the controller is correct. Program Review shows the values for the program in active memory. Use
Program Review from 
to repeat the last program you fired.
■ |
|
| Press the | ||
|
| key. The rate, temperature, hold, etc. will | |||
|
| after the other. Firing will continue. | |||
| display one | ||||
■ |
|
|
| ||
| Press the |
| key. After rate, tempera- | ||
|
| ||||
|
| ||||
| ture, hold, etc., |
|
| . | |
| will appear. Press | ||||
will appear, and the kiln will begin firing the program just reviewed.
Delay
Delay is a
CAUTION: For safety, do not leave the kiln alone dur- ing a delay or a firing. We cannot guarantee your kiln against overfiring even though the controller is auto- matic.
After you have entered a program and the control-
ler is ready to begin firing, 
will appear.
Press the 
key once. 
will ap-
pear, alternating with 
.
Use the arrow keys to enter delay time. (The deci- mal separates hours and minutes. Example: 1 hour
and 10 minutes = 01.10.) Then press 
twice. 
will appear, alternating with time left until
the firing begins.
4
Note: Press 
during delay to end the delay and begin the firing. The maximum delay is 99 hours and 59 minutes.
Power Failures
After a power failure, the controller will continue firing provided that:
■The kiln temperature is above 212°F / 100°C when the power comes back on.
■The temperature dropped no more than 72°F / 40°C while the power was off.
Power Failure Messages (see page 12)
The power failed during a cooling segment, and the kiln cooled past the target temperature while the power was off.
The power failed during firing and kiln tempera- ture was below 212°F / 100°C when the power came back on.
The power failed during firing and temperature dropped more than 72°F / 40°C by the time the power came back on.
CPLt Message: Firing
Completed
When the firing has success- fully completed, the Sentry Xpress will shut off power to
the elements and sound an
alarm for 30 seconds. Then three messages will cycle one af- ter the other:
(complete)
Firing time in hours and minutes
The current kiln temperature
Press 
to return to 
.
Thunder Storms and
Power Surges
Unplug the kiln or disconnect the power when the kiln is not in use, especially during thunder storms and in areas with frequent power surges. If the kiln is part way through a firing when a storm begins, it is probably okay to continue the firing with close supervision. Do not leave the kiln unat- tended.
Canceling a New Program
If you do not touch the keys for one minute during pro-
gramming, the controller will go back to the 
display. The controller will also discard the program you were en- tering and will retain the previous program in memory.
This is useful if you change your mind during program- ming and decide to keep the previous program. Instead of completing the new program, wait a minute and let the con-
troller return to 
.
