15
with switch (31)
a) with air
b) with Argon
We recommend argon for better surface quality and
slighter burn-off of the graphite crucibles.
8. Open chambers
⋅ open inductor chamber (5) + muffle chamber (7) by
swivelling to the left
9. Insert crucible in inductor
chamber (5)
⋅ pls. pay attention to correct crucible combination:
a) coated ceramic crucible and
„longlife - pestle“ (non-precious metal a.o.)
with 8 mm bottom hole
b) Graphite crucible / Graphite crucible plus in the
ceramics crucible holder and graphite crucible
(precious metal)
with 6 mm bottom hole
⋅ Positioning: Insert crucible and lock, pay attention to
marking
The locking pestle, the thermo-
couple as well as the crucible
are sensitive to fracture.
Therefore they have to be
handled with care, e.g. when
they’re hot pls. work with long
nose pliers and use crucible
and pestle support for deposit.
Rupture sensitivity of the
pestles is even increased by
humidity, oil etc. Therefore they
have to be stored dry and are
to be taken off the package just
before using them.
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