M
NOBILIUM
TM
TM
T
Mini-Mod
Semi-Automatic Induction
Compact Air Cooled
Centrifugal Casting
Casting Machine
The Mini-Mod induction casting machine is used for casting partial frameworks
as well as crown and bridge. It has a self-contained air-cooling system that
enables continuous casting and does not require a water supply. The low
power rating makes it highly efficient, thus it is designed to run on a standard
20 amp, 110 volt circuit. Uses medium-frequency induction heating system.
• Adjustable cradle for various ring sizes
• Melts 30 grams in less than 1 minute
• Variable power settings
• Portable, on wheels
• Safety features built-in:
• Cover Safety Switch
• Eye shield
• CE rated
Specifications
Description: Semi-Auto. Casting Machine
Part #: 2008M
Electrical: 110/120 Volt, 50/60 Hz
Height: 37” (93 cm)
Width: 21” (52 cm)
Depth: 21” (52 cm)
Weight: 265 Lbs (120 Kg)
Shipping Weight: 286 Lbs (130 Kg)
Owner’s Manual
Congratulations!
You have just purchased a quality piece of CMP Dental Laboratory
Equipment. It has been carefully quality-controlled and thoroughly tested
for optimum performance and durability.
If you have any questions regarding CMP’s quality line of dental laboratory
equipment and supplies, please call toll-free: 800-833-2343 or 518-434-3147
(Fax: 518-434-1288) between the hours of 8:00 AM and 4:30 PM Eastern
Time. Or, if you prefer, visit us at our web site: www.cmpindustries.com . . .
we will be pleased to assist you.
This manual may be available in other languages. Please check our website.
2
It is important to thoroughly review this
manual and test your new duplicator prior
to loading with duplicating material.
I. Receiving & Unpacking
Carefully remove the outer packing crate
from the Mini-Mod. The packing container is
held together with a band over the crate.
Once the band is removed, the outer box
should lift off. Remove packing material.
Thoroughly inspect the casting machine for
damage at this time. Important: If any damage is found, it must be reported immediately to a representative of the carrier that
delivered the casting machine. The representative should come to your laboratory,
inspect for damage, and fill out necessary
damage reports. At that time, they will
instruct you as to the next step in the damage claim procedure. After and only after the
carrier has been notified, should CMP
Industries be notified. If no damage has
been found, proceed to remove your MiniMod Casting Machine from its shipping crate
base.
II. Electrical Connection
110/120 Volt, 30 Amps, 60 Hz
Note: We recommend installing a conveniently reached disconnect switch within
20 feet of the casting machine. The electrical
plug should be installed above the height
of the casting machine, in plain view, with
easy access for removal in the event of an
emergency.
CAUTION: It is important to check that volt-
age is correct for the Mini-Mod. A Mini-Mod
that is plugged into an incorrect outlet is the
“responsibility of the purchaser” and all
warranties are void.
II. Electrical Connection
1.
Adjust the balance weight to make the arm
balanced, then tighten the balance weight
nuts to avoid loosening during the casting
process.
2.
Do not open the lid in the process of melting or casting. Should the lid be opened the
melt process will stop. In order to resume
the melt close the lid and then press the
start button.
3.
Do not change the Voltage Selector switch
during the melting process.
4.
Always check the DC Current meter after
pressing the melting button. If the reading
is 16 Amps or more, the machine should be
switched off immediately. Identify the
problem (voltage too high, too much metal
in crucible, etc.) and try again.
5.
Observe the melting of the metal in each
casting. Avoid over-heating which can cause
“boiling” to occur and may result in damage
to the crucible or the casting machine.
6.
Unplug unit from the wall outlet if a serious problem occurs.
III. Mini-Mod Set-Up
This is a very important step in the proper
installation of your new Mini-Mod Casting
Machine. Even though your unit was fully
tested and inspected before leaving CMP
Industries, we cannot control the handling
during shipment. For this reason follow the
“set-up” steps carefully before initial
operation.
Note: The parts lists and schematics located in the
back of this manual will help in the proper identification of items (pages 15-19).
3
1.
Machine plugged into the proper receptacle. When the machine is receiving current
the red indicator light is lit (Figure __).
2.
Power switch must be in “Off” position
(“O”).
3.
Place crucible into crucible holder.
4.
Place the spin selector switch (Figure __),
in the off position at this time to prevent
accidental centrifugal take off.
1.
Turn the power switch “On” (“I”).
2.
Choose the correct voltage by adjusting
the Voltage Selector according to the
material and weight of the metal to be
used. Position 1 give maximum power and
position 6 offers minimum power. For 30g
of alloy, choose 180V on the voltage selector.
Increase 5 volts for every 10g of alloy added.
The maximum voltage limit is 195V. The
normal operating range for most castings
will be between 175V-185V.
5.
Place at least 10 grams of alloy into the
crucible. The machine should never be
placed in the melt condition without a
crucible and alloy in place.
6.
Select voltage level “1” – “6” using he
Voltage Selector Knob.
7.
Place the casting arm into the melting
position making sure the red line on the
shaft aligns with the red dot on with the
current straps.
8.
Turn-on the power switch (“I”) (Figure __).
The AC voltmeter should indicate 120V and
the blower should start running.
9.
Press the Melt button, (Figure __). The
DC Current indicator should read 4.0A and
the DC Voltage meter should read 140V.
10.
Press the Stop button (Figure __).
11.
Turn-off the power switch (“O”).
If steps 6 and 7 were successful, the Set-Up
is complete.
IV. Casting
Note: The parts lists and schematics located in the
back of this manual will help in the proper identification of items (pages XX).
3.
Put the pre-heated casting mold on the
V-shaped bracket. Place the crucible sliding
platform close to the V-shaped bracket
casting ring in order to prevent it from hitting
the sliding platform during the centrifugal
casting process. Adjust the mold so the
center is aligned with the crucible, and then
lock it in place.
4.
Balance the casting arm by rotating the
counter-weights. Use the compression nut to
tighten the centrifugal bracket. Aim the red
positioning line to the positioning point and
close the lid. The door indicator light and
position indicator light should be on.
5.
Press the melting button and observe the
reading on the ammeter. The normal electric
current should be around 10A, and should
not be above 16A.
6.
Observe the state of melting from the
observation window. When the melting is
completely finished, press the casting button and the centrifugal motor will rotate for
about 3 to 5 seconds, and then press the
stop button. Open the lid and allow the
casting arm to stop rotation, then remove
the casting mold. Allow the machine to cool
at least 2 minutes between castings.
7. Turn the Power Switch “Off” (“O”).
4
Troubleshooting
Fan works normally
If a problem occurs, follow Set-Up steps to
identify and analyze the problem. Do not
use the machine until the Set-Up steps are
successful.
Problem
voltage is 0 volts, RD is not melted.
Fan does not work.
Cause
1.
RD1 and RD2 (32A) melted.
2.
There is an open circuit in the DK and JC
operating return circuit, or JC is damaged
and JC is open.
Solutions
1.
The fuse still blows after being replaced,
which indicates that there is a short circuit in
the return circuit.
a.
There is short circuit in the filtering box
caused by the breakdown of the capacitor.
Open the filtering box LB n replace capacitor.
b.
Wire 3, 4, 5, 6, are loose, touching each
other or touching the frame of the machine.
c.
The main transformer B1 is damaged or
there is a problem on secondary winding
contracts.
2.
Find the open circuit on DK or JC
connections repair or replace the
damage parts.
Connect the power switch DK, AC
Cause
1.
The AC voltmeter is damaged or there is
connections problem.
Solutions
2.
There is an open circuit in the connections
of the main transformer B1.
Solution
1.
Replace the voltmeter, find out the open
circuit and repair.
Problem
is 0v, RD is melted.
Cause
1.
There is a short circuit in the C2 Capacitor
(connected parallel to the AC voltmeter) or
the C11 capacitor (installed on the JCR
Contactor.
2.
There rectifier bridge G11 is damaged (50
Amps, 1000v)
3.
The electrolytic capacitor. C13 (six parallel
connected, 470µ) is broken.
4.
The chosen voltage is too high (>200v).
5.
Too much metal or current too strong from
too much alloy.
Connect the DK power switch, AC
5
Troubleshooting (Continued)
Solutions
1.
Measure C2, C11 using a multimeter while
the power is off, find out and replace the
broken capacitor.
2.
Method to examine the rectifier bridge
G11: (G11 and C13 shunts are fixed in the
cooling plate) loosen the screws in the shunt,
separate the wires, and measure the rectifier
bridge with multimeter.
3.
While measuring the rectifier bridge, also
measure the C13 with the multimeter to
check if there is a short circuit, measure
capacitor separately to find the broken
capacitor.
4.
Lower voltage to normal range.
5.
Decrease the amount of alloy in crucible.
Lower the selected voltage.
Solutions
1.
Find out the return circuit connections of
the melt operation and tighten them.
2.
Find out and replace the damaged parts.
3.
Run the Operation Test fires, if it test
normal, find and replace JCR or JR. If the test
result is not normal, the parts on the MB
panel are broken, to solve the problem,
replace the MB panel.
Problem
tion, there is reading on the DC voltmeter,
there is no reading on the DC ampere. RD4
(20A) is not melted. (Installed in the upper
part of the print panel of the vibrator.
RD4 is not melted; under normal circumstances the
vibrator is normal. If the vibrator is normal, the problem might be caused by the following:
After activating the melting func-
Problem
ing if the DC voltmeter and DC ammeter are
0, RD3 is not melted. (The door indicators
are normal.
Cause
1.
This problem is caused by the operating of
the melting contactor JCR, and the poor contact of the connecting point of the return circuit in the melting operation.
2.
Damage of the device in the melt button
AN1, contactor, JCR, JC or MB.
After melting is activated, the read-
Run the vibrator test. The procedures are:
Disconnect the output wires of the high frequency transformer, one of the output wires
in the JD12 terminal (two orange terminals on
the upper left corner of the cooling board).
Select the lowest voltage, the AC voltage is
about 120v, press the Melt Button. If the
reading on the AC voltmeter is around 170v,
the AC current is 1A, the vibrator is normal.
The problem parts are between JD12 terminal and the working coil.
6
Troubleshooting (Continued)
Cause
Problem
is DC Voltage but no DC current, RDA is
melted.
After press the Melt Button, there
1.
Poor contacts caused by the loosening of
the screws in the electrodes.
2.
Poor contacts between the electrodes and
the conducting board (the force on the
spring is too little or there is a layer of
oxide).
3.
The copper cooling plates on the working
coil touch each other.
4. The capacitor case is breakdown and short
circuited.
Solutions
1.
Tighten the loose screws.
2.
Remove one side of the spring, tighten it
and put it back to increase its power. Polish
the electrodes and the oxide layer of the
conducting board with a piece of sandpaper
into the electrode and the conducting board
and turn the centrifugal frame).
3.
Watch the copper cooling plates of the
working coil and see if there is touching
among them, separate them is they contact.
Cause
1. T
he power transistor or the reverse diode
is damaged.
2.
The load current is too high.
Solutions
1.
The RD4 is melted, make replacement of
the fuse and run the Empty test only when
there is no short circuit in the oscillating
board. Test method: remove the RD4, set the
multi-meter to the *100 mode, connect the
multimeter to the electrolytic capacitor.
(Negative electrode, black wire) and the left
frame of the RD4 fuse, if the resistance is
less than 100Ω, it indicates that there is broken part on the oscillating board. Contact the
company for repair.
2.
The load current is too high, the reason is
that the selected voltage is too high (>200v),
or the melted metal is too much, or the melted metal is Titanium.
4.
Disconnect one of the wires between the
capacitor case and the working coli, rotate
the centrifugal frame to the position where
melting does not occur, measure the resistance of the two conducting chips of the
capacitor case (*10k) with a multimeter,
replace them if there is a short circuit.
7
3/4 View of Mini-Mod
ITEM & DESCRIPTION
1. Cover
2. Site Glass
3. Voltage selector Knob
8
Generator Board
9
1 2
3
4
Inside View Right Panel
ITEM & DESCRIPTION
1. Fuse
2. Fuse
3. Fuse
4. Main Power Relay
5. Melt Relay
6. Spin Relay
5
6
10
1 2
3
4
5
6
7
8
Inside View
ITEM & DESCRIPTION
1. Crucible Holding Plate
2. Crucible
3. Casting Arm Locking Arm
4. Counter Balance
5. Cradle Adjust Locking Knob
6. Adjusment Arm
7. Spring Clip to Electrode
8. Air Blower Vent
11
413 North Pearl Street • Albany, New York • 12207 • USA
NOBILIUM
TM
TM
Toll-Free: 800 833-2343 • USA: 518 434-3147 • Fax: 518 434-1288
USA Email: info@cmpindustries.com • Export Email: export@cmpindustries.com
Website: www.cmpindustries.com
For m 40 811
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