Page
ST325 User Handbook
2
MAIN DISPLAY
SEGMENT
MIMIC
DISPLAY
DISPLAY
INDICATORS
CONTROL
KEYS
(6)
At A Glance
SOAK TIME LAMP
SOAK TEMPERATURE LAMP
COOLING
RAMP LAMP
FIRING LAMP
HEATING
RAMP LAMP
POWER
SWITCH
(ON BASE)
EVENT LAMP
PAUSED LAMP
CARD
READER
(ON SIDE)
ST325 User Handbook
Page
23
All error messages cause the ST325 to terminate the firing with all the
keys locked.
An alarm buzzer sounds once per second.
SWITCH KILN OFF!
To reset the ST325 turn off the power to the instrument and have the fault
investigated and rectified by your installer or kiln service engineer.
Technical note: any error message will cause the alarm relay to open
- see installation handbook for details.
Note: these error messages are provided to detect kiln faults and so
offer some protection to the kiln. For increased protection the use of
a heat fuse or other independent over-temperature trip is recom-
mended - such as the Stafford Instruments ST121.
Error 7. Maximum room temperature
exceeded. The internal temperature of
the ST325 has exceeded an installer
selectable (30 - 70°C) limit.
Err7
°C
°C/hr
hr.min
Possible causes are: room vent fan failure, ventilation grills blocked, kiln room too
small, damper or bung left open.
Error Messages
