Operating instructions
tory. The controller will not fire hotter than that tempera
-
ture. Press .Press to return to .
ELEC / Electronics
Temperature
Check the Circuit Board Temperature
High temperatures in the switch box can damage the
controller circuit board, which is rated for 176°F / 80°C
maximum operating temperature. To lower board temper
-
ature,useafantoblowairacrossthekilnswitchboxinto
the louvers. (But do not blow air into the kiln’s peepholes.)
When firing several kilns, position them at least three feet
apart to allow adequate air circulation.
From or while firing, press repeatedly
until appears. Press .Thetemperatureof
the circuit board will appear. Press
.Press to
return to .
CAUTION: Do not operate the kiln if the ELEC
display is above 158°F / 70°C.
LOCK / Program Lock
Make a Program Tamper-Proof
With Program Lock activated, stored programs cannot
be altered or removed from memory. Use Program Lock
for repeat firings that you don’t want to inadvertently
change.
Note: Program Lock does not save a delay setting.
While a program is locked, youcanentera new delay.
From ,press repeatedly until
appears.
Press . (locked) or (unlocked)
will appear.
To change the setting, press three times.
Press . Press to return to .
CFG / Configuration Code
Information for Technicians
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
appears. Press . The software version will appear.
Press .Press to return to .
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 repeatedly until
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, alternating with
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, kilnsequipped with the AOPoutlet
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 any thermocouple offset.
I
Erases 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-K thermocouple,
the Sentry will underfire after a reset! Use the Thermo
-
couple option (page 15) to select Type-K again.
From ,press repeatedly until
appears.
Press . Use the or key to select or
.
After selecting one of the above, press .
Press to return to .
18 Ramp-Hold