Mixing Cups; Filling Level Of The Mixing Cups - bredent ecovac Manuel D'utilisation Et D'entretien

Please note:
The expansion of the investment material varies depending on the speed set. 390 rpm is recommended as a
base value. Vacuum I or II is selected on the changeover switch (9). Fit the closed cup in the mixing/suction
connections (6) by turning it. The vacuum is commenced by moving the toggle switch (7) to the „I" position; you
should continue to hold the cup for around 5 more seconds. Once the vacuum has built up, the cup will remain
in place by itself. The vacuum setting can be changed from I to II (9) whilst the vacuum is building up. If the
vacuum has been set to I, the pump will switch off once the vacuum has been reached; the vacuum remains
unchanged. A switch to vacuum II is now no longer possible. It is also not possible to switch down from level II
to level I if step I has been completed. Pressing the switch (9) then allows the vacuum to stop between level I
and II, but not exactly in the defined area. The mixing process is only triggered when the start button (4) is
pressed. The end of the mixing time is shown on the digital time display as „0:00" and is also accompanied by an
audible signal. The mixing cup continues to be held by the vacuum once the mixing time ends, until the vacuum
switch (7) is brought to the 0 position. When the vacuum reduces, the mixing cup comes loose from the mixing/
suction connections (6) and must be held in place. The parameters entered - vacuum, rotational speed and
mixing time - remain saved until a new setting is entered, even if the main switch (5) is turned off and on again.
Digital time display
The required time setting for the mixing process is adjusted using the knob (3). An accurate setting of 1-60 s is
possible up to one minute, an accurate setting of up to 9 min/50 s max. is possible over one minute. When the
switch (4) is pressed, the mixing process commences and the time runs backwards to zero. If the switch (4) is
pressed again during the mixing process, the mixing process is interrupted and the display is automatically set
back to the time set. When the time set lapses, „0:00" appears on the display (2) and a warning signal also
sounds.

5.4 Mixing cups

The conical shape of the stainless steel mixing cup ensures that the components are constantly mixed. The
intermediate space between the mixing spiral (stirrer) and the cup wall is very small, thereby ensuring that the
material is mixed to an optimum extent. The mixing coil of the mixing spiral has a left-hand thread, the device
has a motor that runs in a clockwise direction. The material to be mixed is therefore pressed down and outwards
during the mixing process and transported in the centre to the top, where a bubble-free, homogeneous material
is formed in the mixing cup. Fluid residues or solid material residues are prevented due to the smooth inside
surface of the mixing cup, as deep grooves, such as those which are present in plastic cups, cannot occur. Mixing
cups and mixing spirals should only be cleaned out with clear water and using a commercially-available brush
on material that has not yet hardened. However, if solid plaster or investment material residues are still found
on the inside wall of the cup or on the mixing spiral despite this, these can be removed using the plaster disso-
lution speed REF 52001010.

5.5 Filling level of the mixing cups

The mixing cups are available in various sizes.
These can be filled to varying levels depending on the material.
Cup size in ccm max. filling level
50
250
750
1000
Investment
in g
50
200
600
900
600
bredent GmbH & Co.KG · Weissenhorner Str. 2 · 89250 Senden · Germany · Tel. +49 7309 872-22 · Fax +49 7309 872-24
www.bredent.com · e-mail info@bredent.com
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