Dekema AUSTROMAT 624, Operating Instructions Manual

Page: 112 / 155

6. Operation AUSTROMAT
®
624 / 644
112 Operating Instructions (Version 01/2012)
6.5. Some practical tips
6.5.1. General operation of the furnace
Lift noise
After switching on the firing furnace, the lift moves down and performs automatic lift calibration.
The brief buzzing noise is due to technical reasons and is completely normal. Please note that
the firing furnace does not react to any commands during this calibration time.
Automatic heating
The firing furnace automatically heats to the temperature required to start the program when
standard and professional and pressing programs (only the
644 pressing furnace) are selected.
In general, it occurs when the firing chamber is open.
Save energy
Close the firing chamber in the event of prolonged breaks between firings. This will save energy
and avoid unnecessary wear on the heating element and unnecessary warming of the lid.
Condensation
Close the firing chamber before switching off the furnace to avoid unnecessary condensation in
the firing furnace.
6.5.2. Heating element
The heating elements are wear-sensitive parts, whose service life depends on how much it is
used. Running the check program regularly makes it easier to identify the correct time to
replace a heating element. Another way of identifying heating element wear is visual inspection.
Look into the open firing chamber from below while the firing furnace is switched off and cold. If
the heating strips are deformed or there is strong glass formation, the heating element should
be replaced.
6.5.3. Thermocouple temperature calibration
Visually inspect the thermocouple regularly - particularly before temperature calibration - while
the firing furnace is cold and switched off and the firing chamber is open. A mirror held at an
angle under the firing chamber can be very helpful. The thermocouples are attached to the
middle of the back within the firing chamber and jut out horizontally into the firing chamber.
Ensure that they are not bent since this influences temperature measurement and hence the
firing results.