Electromatic - 4
10
(1)
The grid current meter should read 400 ma.
NOTE:
before making any adjustments, always push the STOP button.
For more accurate calibration, do not melt the two metal ingots.
(2)
If the current is higher, using a small screwdriver turn the calibration screw
(Fig. 14-4)1/4 turn CCW.
(3)
If the current is lower, than 400 ma., turn the calibration screw 1/4 turn CW.
(4)
Repeat steps 2 and 3 if necessary.
8. CENTRIFUGE COUNTER-BALANCE (Fig.10)
The Centrifuge counter-balance weight should be positioned along the centrifuge arm to balance the
combined weight of investment ring, crucible and the alloy.
A. Adjust counter weight position for vibration-free operation as follows:
a. Place a ring of appropriate size in the casting arm.
b. Place a crucible in the crucible carriage.
c. Load crucible with approximate alloy weight to be used.
d. With the Melt Coil in the Down position, spin the casting arm
by pressing the green START push-button and close the
centrifuge cover.
B. Adjustments
Loosen the arm's center knob and counterweight. When the arm is
loose and not balanced, the heaviest side will be lower. Slide the counterweight until the arm is
leveled and at equal height. Tighten the center knob and counterweight.
TESTING THE UNIT
Preparing the Unit for Operation
1. Verify that water is flowing through unit by checking water flow from outlet hose at drain.
2. Turn Main Power Circuit Breaker and Mains disconnect switch "ON".
3. The temperature controller should light if the unit is receiving power.
4. The start push-button should light if the following conditions are met:
A. Unit is receiving water pressure of 20 psi
B. Fuses (F1 or F2) are not blown
C. Circuit breaker (Fig. 11) is in the "ON" position
D. Front and rear panels are closed.
FIG. 10
Содержание AUSTENAL ELECTROMATIC-4
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