Operating instructions

Note: Program Lock does not save a Delay setting.
While a program is locked, youcan entera new Delay.
From ,press repeatedly until
appears.
Press . (locked) or (unlocked)
will appear.
To change the setting, press 3 times.
Press . Press to return to .
CFG / Configuration Code
From , press repeatedly until
appears. Press . The factory configuration code will
appear. Press . Press to return to . The
configuration code can be changed only at the factory.
SOFt / Software Version
From , press repeatedly until ap
-
pears. Press . The software version will appear.
Press . Press to return to . The software
version can be changed only at the factory.
TEST / Element Test
Test the Heating Elements and Relays
This test is useful when measuring the wall receptacle
voltage under load, and amperage with an ammeter. On a
multiple-zone kiln, the test helps determine if the relays
and thermocouples are wired to the correct zones. If you
test thermocouples with a cigarette lighter or other heat
source, use this option.
Single-Zone Kiln
From , press repeatedlyuntil
appears.
Press . will appear, alternating with
kiln temperature. The elements will turn on for two
minutes. Press any key to abort the test.
Multiple-Zone Kiln
From press repeatedly until
appears.
Press . will appear, alternatingwith the
temperature of the top zone. The elements will turn
on for two minutes. Then will appear, with
temperature for the middle zone, and with
temperature for the bottom zone. (A two-zone kiln
shows and displays only.)
During the two-minute test, press any key to end a
zone test. The controller will then begin to test the
next zone.
AOP Outlet
After the above test, kilns equipped with the AOP outlet
will display for two minutes to test power to the
AOP outlet.
RST / Reset
Reset the Controller to Most Factory Defaults:
Perform Only When Requested by a Technician
Reset does the following:
I
Selects Type-S thermocouple.
I
Selects °F.
I
Erases Cone offsets.
I
Erases any thermocouple offset.
I
Erases Ramp-Hold User programs stored in memory.
I
Changes Temperature Deviation (TEdE) back to the
factory setting of 100°F / 56°C.
CAUTION: If your kiln uses a Type-Kthermocouple,
the Sentry will underfire after a reset! Use the Thermo
-
couple Option (page 22) to select Type-K again.
From ,press repeatedlyuntil
appears.
Press . Use the or key to select or
.
After selecting one of the above, press . Press
to return to .
Multiple-Zone Options
These options appear only on multiple-zone kilns.
DIFF / Zone Temperature Difference
View Maximum Temperature Spread
For a two-zone kiln, this option shows temperature dif-
ference between the zones. For a three-zone kiln, it shows
the highest temperature difference between any two zones.
If the temperature shown is larger than expected, go to op
-
tion T123 to view the temperature of each zone.
Press repeatedly until appears.
Press .
The maximum difference in temperature between
any zones will display. (Example: = 3°)
T123 / Zone Temperature Display
View Temperature of Each Zone
Press repeatedly until appears.
Press .
The temperaturefor each zone will displayone after
the other, cycling for one minute. Then normal tem
-
perature display will return. For example:
I
Top zone:
I
Middle zone:
I
Bottom zone:
25