6 Maintenance and Service
13
Figure 4
Evaluating the silver wire
Start the Temperature calibration program by selecting “Temperature calibration” in
the
Setup
menu, and press Program Start (Section 7.6.2).
Fig. 4 illustrates how to evaluate the silver wire test specimen. Approach the correct
setting of the CCF in small steps of approximately two to three points (such as
1,004 auf 1,006). By increasing the CCF, you increase the firing temperature. By
reducing the CCF, you lower the firing temperature.
Observe the following procedure to change the CCF: Select "Temperature
calibration” in the
Setup
menu, and enter a new calibration factor (Section 7.6.2).
Minor corrections can be made instinctively. If there are very large or sudden
deviations from the original CCF, check for technical faults.
position of the specimen on the halved
DUCERA
-
Tray, seen from above
ca. 25 mm
silver wire
15 mm
Silver specimen
silver specimen is stuck in the
DUCERA -Tray
effective temperature too low
ra
ise CCF -value (c. 5 points)
effective temperature o. k.
effective temperature slightly too high
lower CCF -value (c. 3 points)
effective temperature too high
lower CCF
-
value (c. 5 points)
6.3 CHECK-PROGRAM
The
AUSTROMAT D4
has an internal program that checks the function of
the major components (check program). Regularly using this non-editable program
makes it easier for you and the responsible service personnel to identify aged
components (such as heating element wear) and troubleshoot malfunctions (such
as vacuum leakage). After approximately 2000 firings, the device displays a
recommendation on the screen to start the self check program (duration: approx. 45
min). In the
Setup
menu, select the “Check program” function, and start the
program.
Start the check program only after running several firing programs, or after a
cleaning firing so that the oven is warmed up.
The results of the self-check are saved in a diagnosis file. In certain cases, the
AUSTROMAT D4
automatically notifies you upon starting a firing program if
diagnostic data indicate that a firing program will not run properly. This is the case
for example when the heating element is too old, and you want to reach a firing
temperature quickly.
DEKEMA Dental-Keramiköfen GmbH, AUSTROMAT
®
D4, Version 3, 2006
