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6. Using a vacuum or soft bristle brush, clean the cavity exhaust outlet located on
the back wall of the instrument cavity. Use a soft cloth and soapy water to
clean the outlet. If this will not clean the outlet, use a soft cloth with an organic
solvent such as varsol or alcohol.
Note: For sulfated ash applications, rinse the exhaust hose with water prior to
cleaning.
7. Using a soft bristle brush with a handle long enough to reach all areas of the
hose, clean the interior of the exhaust hose. Using a soft cloth, clean the hose
with an organic solvent such as varsol or alcohol.
8. Using a vacuum or soft bristle brush, clean the waveguide entry port located in
the ceiling of the instrument cavity.
9. Using a vacuum, remove the debris caused by the above cleaning processes
from the interior of the cavity.
10. Using a soft cloth and warm soapy water, clean the instrument cavity, door and
door seal. Rinse and thoroughly dry the cleaned areas.
11. Clean the furnace chamber by operating the instrument for 15 minutes at
1000ºC.
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