Practical Use; Switching On The Furnace; Sintering Procedure With A Standard Program - Ivoclar Vivadent Programat CS4 Operating Instructions Manual

6. Practical Use

The operating procedure for the Programat CS4 will be explained
with the help of two examples: one standard and one
individual program.

6.1 Switching on the furnace

Put On/Off switch (9) on position "I". Subsequently, the furnace
conducts an automatic self-test which will be indicated in the
beginning. Subsequently, a status bar shows the progress of the self-
test. Make sure that the furnace is not manipulated during this time.
6.1.1 Stand-by screen
If the self-test has been successful,
the stand-by screen will appear in
the display and the desired pro-
gram can be selected using the
program selection keys.
Once the furnace head has been opened and the loaded sinter tray
placed, the program can be started using the START key. For that
purpose, the START key is shown in the recommendation area.
Note:
For safety reasons, the furnace head can only be
opened once the temperature has dropped below
1200 °C/2192 °F
6.1.2 Program progress indicator
Once the program is started by pressing START, the program pro-
gress screen appears.
a)
b)
d)
e)
The following information is provided:
a) Program status
b) Remaining time (hh:mm)
c) Current temperature
d) Program number
e) Program name
f) Progress bar
6.2 Loading for sintering procedure
The sinter tray (100) holds up to approximately 6 units, depending
on the program. Make sure that the objects do not touch in order to
prevent them from sintering together. For more detailed information,
please refer to the instructions for use of the corresponding material.
In order to achieve optimum sintering results, the objects should be
placed on their occlusal or labial surface (not on the cervical margin).
Furthermore, no objects should be placed on the groove in the sinter
tray, if possible.
For the wet processing of IPS e.max ZirCAD restorations,
sinter programs with an integrated predrying process are
programmed. Additional predrying is not required.

6.3. Sintering procedure with a standard program

Step 1:
Select the desired program using the program keys.
c)
You must not position a restoration in the furnace before
the display indicates a temperature below 700 °C/1292 °F.
f)
Step 2:
Open the furnace head using the open furnace head key (87).
Use a sinter tray fork to place the loaded sinter tray in the centre of
the furnace.
For safety reasons,
always use the sinter
tray fork when
placing the sinter
tray in or removing
it from the furnace.
Step 3:
Press the START key (73) to start the program. You can observe the
cycle on the program progress indicator.
To skip the pre-drying process, press close furnace head
(88) and then press the START key (73).
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