PerkinElmer PINAACLE 900 Series, Руководство по оборудованию и обслуживанию для клиентов

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Cleaning the Burner System
• Aspirating samples with high solids content may cause deposits to build up
along the burner slot
• Prolonged operation of the nitrous oxide-acetylene flame may cause deposits
of pyrolytic carbon to build up along the burner slot
Flashbacks
A flashback is an explosion of the premixed gases in the burner chamber. The
safety interlocks normally prevent conditions that could cause a flashback, but if a
flashback should ever occur:
• Check that the burner head slot is clean
• Check that the burner head is seated correctly
• Check the flow spoiler or impact bead for damage, and replace any damaged
parts
• Check the inside of the end cap for any cracks.
Unstable acetylides, which are likely to explode when dry, may be
formed when aspirating high concentrations of silver, copper, or mercury
salts into an acetylene flame.
Warning: Hydrochloric and Nitric Acids - Risk of Burns
Hydrochloric (HCl) and nitric (HNO
3
) acids are corrosive and can cause
severe burns.
Caution
If high concentrations of Cu, Ag, or Hg have been aspirated into an
acetylene flame,
clean the burner chamber immediately after use by
following the procedures in this section called Cleaning the Burner After
Aspirating Cu, Ag, or Hg sample .
!
Warning
!
Warning