Page
ST325 User Handbook
8
To exit programming mode at any time wait 10 seconds without
pressing any keys - the ST325 will then revert to the idle display.
Alternatively press the START/STOP key to exit programming and to
begin firing immediately.
The
§
key can be used to reverse through the programming steps to
correct errors or to exit programming mode.
Available ramp rate displays are:
End
,
1
…
999
&
FULL
. If
End
is
shown but another segment is required then push the
©
key to obtain
the required ramp rate (in the range 1°C/hr to 999°C/hr). If full power
is required then push the
©
key until
FULL
is displayed.
Programming Notes
Programming
To declare the end of a program while prompted for a ramp rate push
the
ª
key until
End
is displayed.
FAQ (Frequently Asked Questions)
During programming the COOLING lamp sometimes flashes when I want the
kiln to heat - why is this?
The ST325 asks you to input the ramp rate before it asks for the soak
temperature so if the (still to be set) soak temperature in the current segment is
less than the soak temperature in the previous segment the ST325 will assume
cooling is required. This anomaly will be rectified when all of the program has
been entered. This can be confirmed by stepping through the completed
program with the
¨
key.
Q:
A:
During programming the HEATING lamp sometimes flashes when I want the
kiln to cool - why is this?
The ST325 asks you to input the ramp rate before it asks for the soak
temperature so if the (still to be set) soak temperature in the current segment is
more than the soak temperature in the previous segment the ST325 will
assume heating is required. This anomaly will be rectified when all of the
program has been entered. This can be confirmed by stepping through the
completed program with the
¨
key.
Q:
A:
During programming
End
is displayed when I want to enter another segment -
why is this?
Available ramp rate displays are:
End
,
1
…
999
&
FULL
. If
End
is shown but
another segment is required then push the
©
key to obtain the required ramp
rate (in the range 1°C/hr to 999°C/hr). If full power is required then push the
©
key until
FULL
is displayed.
Q:
A:
How do I declare the end of the program?
Press the
¨
key to advance to the next segment. Push the
ª
key until
End
is
displayed. (Press the
¨
key again to exit programming mode).
Q:
A:
ST325 User Handbook
Page
17
Program Pause Facility
While firing press and hold down the green f
n
(function) key then press the
▌▐
(pause) key. The ST325 will pause the executing program. To un-
pause the program repeat the above key press sequence. The effects of
pausing are as follows:-
If paused during ramping the kiln temperature will be held (soaked)
indefi-
nitely
at the current kiln temperature. The ramp will continue when un-
pause is selected.
If paused during soaking then the soak time will be
extended indefinitely
.
The remainder of the soak period will be resumed when un-pause is se-
lected.
Segment advance
►►
can also be used to terminate the pause. This will
advance the segment and will immediately terminate a paused soak - ad-
vancing to the next segment (if any).
Changes made to the operation of the ST325 in this way are temporary
and are not stored.
600
°C
°C/hr
hr.min
As a warning during pause a double
beep is sounded every 10 seconds
and the display scrolls
PAUSed
. The
PAUSED lamp to the bottom left of
the main display is lit.
Adjusting While Firing
WARNING - PROGRAM PAUSE
The program pause facility should be used with care. Program
execution is suspended and the kiln will be held at its current
temperature indefinitely.
If left too long at high temperatures kiln damage could result.
