Rohde TC304 Manual De Instrucciones página 20

E A4
Event
Temperature increase too small despite heating on full load
This error message always indicates a problem at the kiln . Possible causes:
• Mains supply fuse / phase, heating element defect
• Heating elements too old (at high temperatures)
• Thermocouple or supply short-circuit
• Power relay defect (often occurs during firing)
E A5
Event
Kiln does not follow the required temperature increase
In contrast to Event A4 here the cause can also be that the programmed temperature
increase has been chosen too high for the kiln to follow .
This message will only be activated if it has been set during configuration .
E A8
Event
Increase continued automatically
If the kiln cannot follow the temperature increase the ramp is stopped (see section on
„kiln cannot follow ramp") . If the controller continues the program after the halt period
has passed without success this message will be displayed for 1 minute .
E A9
Event
SKIP ramp forcefully terminated
If the controller has tried unsuccessfully to heat the kiln to final temperature in an un-
controlled ramp the controller switches to the next segment (see section „uncontrolled
ramps (SKIP)") . For the information of the operator this message will be displayed for
1 minute .
E b3
Event
Firing has been interrupted after power failure
After the power has returned after power failure the firing process has been aborted
as e .g . the kiln temperature has dropped too far in the meantime . Further information
about the event might be displayed by adding a decimal number (e .g . B3 .4 = tempe-
rature has dropped too far) . If this message appears immediately after you switched on
the controller you can ignore it . In this case it only signifies that the controller had been
switched off at the last firing while the program was still running .
Just start with the program input .
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