Page
6
of
7
SECTION 3 - Running the Kiln
3.1 To Start the Firing
It is advised that you always turn the Kiln OFF and then back ON between or after each firing. This
resets the controller so it knows to begin a new firing and ensures it does not become confused.
To begin Firing Press the square
RED
Start Button.
The
“Cycle
End”
light will
turn
off.
The controller will indicate that the kiln elements are being turned on by illumination of a small
square red indicator light (marked OP1) in the top right hand corner of the controller.
The bottom display will start to indicate the theoretical target temperature which the kiln
chamber should be at any point during the programmed firing. Visual checking of the bottom
theoretical program display
with
the
top
actual
process
value
display
will
be
helpful
to the
operator
to ensure that the kiln is able to keep up with the program.
NOTE:
The Kiln will not always show the PV and SV being equal. The Controller will attempt to
keep these values being equal but may lag or overshoot from time to time. This is the normal
function of the controller. If these do become separated by a large amount you may have an issue
with the Kiln not being able to keep up with the program or there may be a problem with the Kiln.
3.2 Completion of Firing
At the moment that the kiln reaches the set value (set temperature) both the top display and the
bottom display will show this value at the same time. The program has now moved into the “timed
soak” stage of the program. When the “timed Soak” period has been completed, the small red
alarm light and the END light will be ON. The Kiln will now “Turn Off” as the firing is now
completed and the kiln temperature will begin to fall. The top display will continue to display the
falling temperature and the bottom section will display the set temperature that the Kiln reached.