Operation of Controller
880 Operation Manual Issue 7 EMC INDUSTRIAL GROUP LTD Page 7 of 25
Operation of Controller
This section gives an overview on how to operate the controller, describes in detail
how to enter programs into the controller, how to start a firing and what can be
done while firing is in progress, explains the function of keys, indicator lights, dis-
play and the internal beeper, describes what to look for when power is turned on
and finally how the controller recovers from a power failure.
Operation Overview
The Kiln Controller is very easy to use.
When power is applied the display sequentially shows a display test to verify the
controller is working correctly. See Power Up Test, page 13.
Before firing can commence the correct program values must be entered into at
least one of the nine program storage containers.
A program has up to six stages. Each stage has a ramp setting, a temperature set-
ting and a hold setting. When firing is started the temperature climbs at the ramp
rate to the Hold Temperature and is maintained there for the Hold Time before ad-
vancing to the next stage.
If a ramp rate is not required, the ramp setting can be set to . The controller
will then bring the kiln to the Hold Temperature as fast as possible.
If a stage needs to be kept at the Hold Temperature indefinitely, the hold setting
can be set to . The controller will then maintain temperature until stopped
with the RUN STOP key.
If a stage is not required, the temperature setting can be set to . The pro-
gram will then skip onto the next stage.
To jump to the end of a program and skip all remaining unused stages set the
ramp setting of the next stage after the last programmed stage to .
To commence a firing ensure the correct program number is showing in the small
display, for example is program one, then press the RUN STOP key. The firing
can also be delay started or stage started, see Start a Firing, page 9.
Once started, the kiln temperature will follow the temperature profile of the selected
program. See During a Firing, page 10.
During the firing, settings of the program can be checked and changed, other
stored programs can be changed or new programs can be entered.
When completed the alarm beeps five times and shuts power off to the kiln.
Enter a Program
How to select a program and enter a program value is explained in the following
sections. Enter program mode by pressing the MENU key. Return to normal mode
by pressing the EXIT key.
Select a Program
Press MENU key.
Large display shows current program number.
Use UP or DOWN keys to select a new program number.
Set Ramp 1
Press and release MENU key until the small display flashes .
Large display shows the ramp rate for stage 1 or shows or .
means the kiln temperature will ramp as fast as possible to the set tem-
perature.
means the controller will skip to the end of the program bypassing the re-
maining stages and will not display other stage settings past this point except the
vent close and vent open settings, and .
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