5�4 Mixing Process - Renfert Twister evolution Manual De Instrucciones

5.4 Mixing Process
Always read the safety data sheets supplied by the manufacturers when mixing investment mate-
rials! Wear the appropriate personal protective equipment as and when required!
Observe maximum mark on mixing bowl. Do not fill the mixing bowl over the maximum mark.
This limit is valid for powders and liquids measured before mixing.
If the mixing bowl is over-filled the suction filter system can become soiled.
Attempting to mix small quantities in large bowls will result in inadequate mixing.
⇒ Select an appropriate mixing bowl size�
⇒ Mix powder and liquid as instructed by the manufacturer� Allow plaster
to sit for approx� 15 - 20 sec�
⇒ Using a spatula, lightly mix the materials together or use the premix
function (refer to Sec� 6�4)�
⇒ Install the appropriate paddle�
- Make sure the bowl rim and cover rim (28, Fig� 12) are clean!
⇒ Select the desired program�
⇒ Press the programming key, „P" (2)�
⇒ Select the desired program by turning the control knob (1)�
♦ The following will be shown from the selected programme (Fig� 7):
- Symbols of the used parameter
- Mixing time
- Speed
- Vacuum
⇒ Couple the mixing bowl (15) to the device�
♦ When the bowl is added the motor runs briefly in order to engage the
paddle�
♦ Vacuum generation starts automatically�
⇒ Do not let go until the bowl stays in place alone and vacuum level bar
has passed the halfway mark (25, Fig� 8)!
If the set vacuum is <100 %, the pump will switch off when it is
achieved. The pump can restart briefly, in order to reach the set
vacuum level exactly.
Twister evolution venturi only
The reduced vacuum level (80 %) is achieved through an opened
bypass. This is why it sounds similar to when 100 % vacuum is
achieved.
Once the minimum vacuum has been achieved (the appliance beeps), the mixing program begins auto-
matically�
♦ The remaining mixing time (countdown) is displayed during the mixing process�
♦ The appliance beeps once the mixing program has been completed�
♦ The time which has elapsed since the end of the mixing cycle is shown in the display�
⇒ Aerate bowl
⇒ Hold the bowl!
⇒ Press the control knob (1)�
♦ The bowl will be released in a few seconds�
⇒ Remove the mixing bowl�
Tip
Only mix the same type of material in a given bowl. Residue form previous mixing processes can have
a negative influence (e.g., silicon fails to harden, etc.). We recommend a separate bowl for each type
of material (plaster, investment, silicon). Use the adhesive labels enclosed to the mixing bowl.
- 9 -
25
2
1
Fig. 8
15
Fig. 9
EN