AutoFire® Kiln Controller User’s Guide
13
Alarm Reference
The following is a reference guide to the alarm conditions that may be encountered while using your AutoFire®
Kiln Controller (refer to page 20).
[Audible Alarm Only]
Display Meaning
ALAr Kiln Threshold Temperature reached threshold temperature alarm set by user
FtH Fail to Heat - kiln unable to heat at program ramp - temperature is below set-point by deviation
amount*
FtC Fail to Cool - kiln unable to cool at program ramp - temperature is above set-point by deviation
amount*
HtdE High Temperature Deviation - kiln above set-point by deviation amount*
LtdE Low Temperature Deviation - kiln below set-point by deviation amount*
LBAt Low Battery
tC 0 Top Thermocouple has failed during firing (UniTemp™ Models Only)
tC 1 Bottom Thermocouple has failed during firing (UniTemp™ Models Only)
tCdE Thermocouple Deviation Alarm - Factory Set for > 60°C (UniTemp™ Models Only)
*temperature deviation alarms occur when the kiln temperature differs from the set-point temperature by the
alarm value. Typically, this is factory set at 100°F (56°C). It is changed through Options (see page 17&18)
[Terminating Alarms]
Display Meaning
FtL Firing Too Long - kiln not increasing in temperature. Temperature increasing at less than 15
O
C/hr AND the firing time is 4 hours longer than the program segment
EtH Electronics Too Hot – electronics temperature exceeds 85
O
C
FAIL Open Thermocouple – thermocouple(s) has failed (opened)
tC01 Both Thermocouples are 'open' in IdLE mode (UniTemp™ Models Only)
PLOG Diagnostic tests to determine if controller operating properly
‘To reset PLOG error, press ‘ENTER’, refer to page 22 for additional details.
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