Keep the kiln lid or door closed when the kiln is not in use. 19
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Two-Zone Kiln The top light indicates power to the
top section of the kiln. The bottom light indicates power
to the bottom section. Ignore the center light.
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Three-Zone Kiln The top light indicates power to the
top section, the middle light is power to the middle sec
-
tion, and the bottom light is power to the bottom sec
-
tion.
When a zone temperature is too low, its indicator light
will flash rapidly. The heating elements in that zone will stay
on continuously, and the controller will attempt to balance
the heat in the other two zones.
Checking Multiple-Zone Elements and
RelaysforProperWiring
When relays or thermocouples are connected to the
wrong controller terminals, the zones will show a wide tem
-
perature difference. To make sure the thermocouples are
wired to the correct relays, trace the switch box wires, one at
a time, and compare them with the kiln’s wiring diagram.
Also, see “Element Test,” page 26.
Chapter 6
The Options Key
In this chapter you will learn to . . .
G
Activate slow cooling in Cone-Fire
G
Check the amperage that your kiln pulls
G
Display temperature in Fahrenheit or Centigrade
G
Choose from three types of rates used in
programming
G
Set up your controller to give the cost of electricity
G
Activate Program Lock so you can protect stored
Ramp-Hold programs
G
Check the circuit board temperature, adjust error
messages, check the software version, and more
The Options key gives you access to a list of special fea
-
tures and adjustments in your Sentry. With each press of
the Options key, the controller will display the next option.
1 When you find the option you want to use, press
ENTER.
2 Use the 1 and 3 keys to select changes for that op-
tion.
3 After making a selection for an option, press
ENTER. The display code for the option you just
changed will appear. You are then ready to go to the
next option.
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In Cone-Fire mode, you will see more options than in
Ramp-Hold mode.
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If you select a change for an option but don’t press
ENTER, the change will not go into effect.
There are two ways to get out of Options and back to
[IDLE]:
1 Press STOP.
2 Do nothing for 90 seconds in Options. You will au
-
tomatically be taken out of the Options display and
back to
[IDLE].
Note: If you are firing the kiln while in Options,
pressing STOP takes you out of Options and back
to the firing display. But it does not stop the firing.
Cone-Fire Options
These options appear only if a Cone-Fire program has
been selected. If your controller has Ramp-Hold mode
only, skip to General Options, page 21.
SPD / Cone-Fire Speed
Adjust Cone-Fire Speed
Beyond Slow, Medium & Fast
There are two ways to adjust the speed of a cone fire:
If you are not sure how many zones your kiln has, look inside and count the
thermocouples. The kiln has a zone for each thermocouple. In this photo,
the kiln is single-zone because it has only one thermocouple.
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