Pressure Adjustment; Start Of Programme - Dreve Drufosmart scan Instrucciones De Trabajo

Drufosmart scan

8.2 Pressure adjustment

The incoming pressure from the com-
pressor must not exceed 10 bars! If ne-
cessary, assemble a pressure reducing
valve into the supply resp. decrease the
total pressure of the compressor.
The working pressure of the Drufosmart
scan is 4 bars (58 psi). The pressure
is controlled digitally and will be con-
trolled permanently.

8.3 Start of programme

In order to start the selected pro-
gramme, put a blank that corresponds
to the entered barcode resp. program-
ming onto the plate reception (11) and
fix it by means of the tension ring (13).
The model can either be put onto the
nub plate (6) or fixed by taking out the
nub plate and embedding it into gran-
ules in the insert bowl (6a).
Info
For an optimum adaptation of the
blank towards the model always
place the models in a way that
the anterior teeth are directed
34
The effective pressure in the pressure
chamber during the thermoforming pro-
cess can be controlled via the bar chart
(g) of the display.
towards the centre of the blank.
When using hard blanks it is re-
commended to embed the mod-
els into granules. Models that
are placed onto the nub plate
should not exceed a max. height
of 23 mm.
Swivel the plate reception inwards at
the handle (10) just up to the mechani-
cal interlock in the centre of the unit.
Also swivel in the heating element (4)
at the corresponding handle (5) just up
to the mechanical interlock in the centre
of the unit. Close the ventilation valve
of the tension ring (12).
Press the OK key (f). There will be an
acoustic signal as confirmation for the
activation of the heating; the scanner
will turn off and the adjusted heating
time will elapse in the display.
Attention! The swivelling hous-
Info
For safety reasons the quartz ing of the heating element
radiator is equipped with a final reaches high temperatures.
Therefore it must not be touched
switch and only works in swivelled
– even not for short moments.
in position after having started a
programme.
After the adjusted time has
elapsed the indicator (a) in the
If the quartz radiator is swivelled
display will stop and count the
outwards after having started a
programme, the heating process duration after termination of the
will be interrupted automatically. heating time. This process may be
The indication in the display (a) stopped by successive thermo-
forming.
will stop and show the remain-
ing time. By swivelling the quartz
radiator back in the programme
will be re-activated.
8.4 Thermoforming
After the heating time has elapsed there Info
will be an acoustic signal; the heating
For safety reasons the pressure
time in the display will be 00:00. The chamber can only be pressurised,
heating will be switched off automati- if it has been moved downwards
cally. Pull the heating (4) at the handle completely manually. In order
(5) away from the centre of the unit as to protect the operating person-
far as it will go with the right hand.
nel securely against bruises of
the fingers, pressurising can only
Then push the activation lever (34) with be effected, if the unit is oper-
the left hand downwards as far as it will ated with two hands at the same
go. By pulling the heating handle (5)
time (two-hand control). Always
again as far as it will go the pressure make sure that no objects are in
chamber closes completely and pres- the contact area between piston
surising of the piston will be carried out and insert bowl while the piston
automatically. This is confirmed by an is closing!
acoustic signal.
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