18
Precautions for Proper Embedding
• Make sure the tissues, parafn, cassettes and base molds are of the
same temperature.
During embedding, set the instrument temperature so that the
tissues, parafn, cassettes and base molds can be kept at the same,
appropriate temperature as much as possible. To minimize any
temperature drop experienced by the cassettes and base molds, do
not keep them away from the heated areas of the instrument for long
periods. A large temperature difference prevents the paraffin block
from remaining in a uniform state.
• Place two small trays in one warming chamber when the optional
tray is used.
Placing only the one small tray may cause thermal conduction to
slow.
• Clean the inside of the used base mold.
After the work is over and the paraffin block is removed, clean the
inside of the base mold. If the inside of the base mold is not clean,
the parafn block may not be removed easily in the next session.
• Clean the instrument or equipment properly when it gets dirty during
the embedding.
Continuing the embedding work with dirty instrument or equipment
may cause contamination.
• Parafn attached on the hot plate may cause a base mold to move.
Clean parafn residues off the surface of the hot plate frequently. Do
not release your hand from the base mold on the hot plate during the
dispensing.
• Precaution for temperature settings
Considering the melting point of the paraffin and environment (e.g.
ambient temp, air conditioning), set temperatures of the paraffin
chamber, hot plate, and warming chambers by adjusting from the
default setting (62°C). Operating the instrument with unmelted
paraffin may cause a failure on valves in the dispensing system or
difculty of embedding work due to solidied parafn.
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