Page
ST325 User Handbook
22
Error Messages
Error Messages
Error 1. The kiln temperature is not
increasing as required. The kiln has been
on full power for 1 hour but the kiln
temperature has not risen by at least 8°C.
Error 2. Thermocouple or thermocouple
wiring open circuit. Get thermocouple and
wiring checked. Have thermocouple
replaced if necessary.
Error 3. Thermocouple reversed (kiln
temperature apparently less than -40°C).
This is an installation fault. Get wiring
checked.
Error 4. Kiln temperature too high. The
kiln has been on zero power for 30
minutes but the kiln temperature has not
fallen by at least 1°C
Err1
°C
°C/hr
hr.min
Err2
°C
°C/hr
hr.min
Err3
°C
°C/hr
hr.min
Err4
°C
°C/hr
hr.min
Possible causes are: kiln door or lid not closed properly, heater element failure,
elements too old, power phase failure, contactor failure or thermocouple short-
circuit.
Error 5. Kiln temperature overshoot. The
kiln temperature exceeds the desired
temperature by at least 10°C - 50°C
(installer selectable).
Err5
°C
°C/hr
hr.min
Error 6. Maximum firing time exceeded.
The length of the current firing has
exceeded an installer selectable (10 - 999
hours) limit.
Err6
°C
°C/hr
hr.min
Possible causes are: contactor failure or thermocouple connection intermittent or
high resistance.
ST325 User Handbook
Page
3
Quick S
tart Guide
Quick Start Guide
Switch on & wait for kiln temperature display
To run a firing program set up previously press
the START/STOP key
To stop the firing at any time press the START/
STOP key again
To review firing data press the
¨
key to enter
the programming menu
To change firing data press the
©
&
ª
keys to
change the displayed value
Use the
¨
key again as necessary to index to
the next firing value or segment to be reviewed
or changed
To mark the end of a program set a ramp rate to
End
with the
ª
key
If the keyboard is locked then press the
©
&
ª
keys together & hold down for 5 seconds to
unlock
To exit the programming menu either wait 10
seconds or press the START/STOP key to start
firing
