Instruction manual

OPERATING_MANUAL_MC20V.DOC 18.03.11 KS Seite 19
3.7. Test running
After setting-up MC20V according to our instruction manual, you should
make a final countercheck before you start casting:
Please check once more connection:
Electrical Supply: Voltage supply according to label on machine?
Plugged-in?
Cooling water: Water tap is connected to Water In?
Water tap open?
Vacuum: Vac-Pump installed, plugged-in and switched on?
Protective Gas: Valve on bottle opened
Reduction Valve on bottles shows 6-8 bars?
.
After main switch on: If you start the first heating cycle, the
MC20V does a self-test. The routine is checking vacuum and
inert gas pressure. If vacuum is missing or system is leaking,
error message E081 appears. If inert gas pressure is missing
or too low, error message E083 appears.
Everything is OK? If not contact us!
Insertion of Crucible
Crucible has no damages or cracks?
Wool in glass shield?
Insertion of thermocouple
Thermocouple’s protection tube is mantled?
In crucibles with graphite inlet: Tip of thermocouple touches graphite?
If no thermocouple is used: do not forget to connect DUMMY-plug 13400022
Important: Use thermocouple for melting only in crucibles with graphite
inlet. Otherwise induction energy will stimulate thermocouple directly
(without protection by graphite). Result, read in display, is pure
nonsense!