6
5.2.1
Connect the device to the mains through the “Power” main switch. If the upper lid is
closed, indicator light “3” is off (see Fig. 2); it lights up as soon as the lid is opened.
5.2.2
Select the torque by turning potentiometer “P1”, and the melting power by turning
potentiometer “P2”. When melting precious metals (use the graphite insert!) set the
potentiometer P2 knob in position 4; in melting non-precious metals the values have to be set
higher (from 6 to 9).
5.2.3
Close the upper lid. If the inductor is in the bottom position, indicator light “9” is on.
5.2.4
When the inductor is in the bottom position, place the centrifugal arm with the crucible
above the inductor. Using the handle “1” (Fig. 3) lift the inductor as far up as possible in the
terminal position and move it slightly to the left so that it snaps into the appropriate notch.
Make sure that the crucible fits into the inductor perfectly by slightly turning the arm (Fig. 1) and
moving the slide “6”. Indicator light “8” is now on, while indicator light “9” goes out.
IMPORTANT: Preheat the crucible and the metal before casting in order to reduce the melting
time, prevent the flask from cooling too much and protect the crucible from cracks.
The casting torque is selected by turning the P1 potentiometer knob: for precious metals set P1
to level 4, for non-precious metals to levels from 6 to 9.
5.2.5
Before commencing the melting operation, apply the settings in the following order:
1.
Turn the P2 potentiometer knob to the far left position (1-minimum power).
2.
Insert the necessary amount of metal in the crucible and close the lid – the heating of the
metal starts.
3.
Slowly (by 0.5 to 1 grade of the scale per second) turn the P2 potentiometer in clockwise
direction towards the far right position (maximum power).
