DENTSPLY Multimat 2 Touch Manual De Instrucciones página 54

5.5.1 Set preheating temperature
Press the relevant yellow sensor button. Enter the temperature
value with the numeric keypad, e.g. for 500 °C enter the value
500.
5.5.2 Set predrying time
(firing chamber in upper end position)
Only used for low-temperature drying for an extended period.
During this drying phase, the firing chamber remains in the upper
end position.
5.5.3 Set drying time
Press the relevant yellow sensor button. Enter the time value
with the numeric keypad, e.g. for 6 minutes enter 0600
(see section 6.13).
5.5.4 Set preheating time
Press the relevant yellow sensor button. Enter the time value
with the numeric keypad, e.g. for 3 minutes enter 0300.
5.5.5 Set vacuum level
Press the relevant yellow sensor button. Enter the vacuum level
with the numeric keypad, e.g. for 50 hPa enter the value 50.
5.5.6 Set heating rate
Press the relevant yellow sensor button. Enter the heating rate
with the numeric keypad, e.g. for 80 °C/min enter 80.
In other firing modes, the heating rate can be time-controlled.
5.5.7 Set firing temperature
Press the relevant yellow sensor button. Enter the firing tempera-
ture with the numeric keypad, e.g. for 940 °C enter 940.
5.5.8 Set vacuum
a. time-controlled (e.g. Dentsply DeTrey mode)
Press the relevant yellow sensor button. Enter the vacuum
time with the numeric keypad, e.g. for 1 minute enter 0100.
b. temperature-controlled (e.g. Dentsply Ceramco mode)
Press the relevant yellow sensor button. Enter the tempera-
ture for switching the vacuum on or off with the numeric
keypad.
Note: The ceramic types "metal ceramics" and "pressable
ceramics" are entered and displayed in minutes:seconds and
the "sinter ceramics" in hours:minutes.
54
5.5.9 Set firing time
Press the relevant yellow sensor button. Enter the firing time with
the numeric keypad, e.g. for 2 minutes enter 0200.
Note: The ceramic types "metal ceramics" and "pressable
ceramics" are entered and displayed in minutes:seconds and
the "sinter ceramics" in hours:minutes.
5.5.10 Set tempering temperature
During tempering, the thermal expansion coefficient (TEC) of
the ceramic is increased by controlled growth of leucite crystals.
Thus, the TEC of the metal ceramic can be adjusted to alloys
that differ greatly in terms of their TEC.
Press the relevant yellow sensor button. Enter the tempering
temperature with the numeric keypad, e.g. 1000 for 1000 °C.
Consult the ceramics manufacturer before using
the tempering function!
5.5.11 Set tempering time
Press the relevant yellow sensor button. Enter the tempering
time with the numeric keypad, e.g. enter 1000 for 10 minutes.
5.5.12 Set cooling stage
Using the 3 cooling stages of the Multimat2 Touch results in
a stress relaxation in the ceramics. When cooling stages were
programmed, the cooling starts after the end of the firing time,
and lasts until the preheating temperature is reached again.
For activating it, press the yellow sensor button until the desired
cooling stage is displayed.
Cooling stages
0 = Firing chamber moves immediately to upper end position –
no controlled cooling
1 = Firing chamber opens about 70 mm
2 = Firing chamber opens about 50 mm
3 = Firing chamber remains closed
Quick cooling
(Controlled cooling is only available in sinter programs.)
5.6 Save program
Save your program by pressing the button "S". The entered firing
parameters will be checked on validity. Invalid firing parameters
will be shown in the info field and must be corrected after
pressing the button "C". Once all firing parameters are accepted,
the control system proposes to use the next available program
number as a storage location. Press the button "S" again to
accept the default setting.