Maintenance and care
multi N/C pharma HT
90
}
Unscrew the Fingertight connection of the furnace canula from the
change-over valve.
}
Loosen the knurled head screw on the holder of the change-over valve.
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Slide the change-over valve to the right. This pulls the furnace canula out
of the change-over valve.
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Release the joint connection (3) on the bottom of the combustion fur-
nace connecting the combustion tube with the condensation coil.
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To do this, unscrew the knurled head screw (1) and remove the fork
clamp (2).
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Carefully pull the combustion tube out of the combustion furnace toward the top.
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Unscrew the furnace head from the combustion tube. Remove the union nut, the
pressure ring and the three sealing rings.
}
Remove the used catalyst filling. Check the combustion tube for heavy crystallization,
cracks and burst spots. Only re-use intact combustion tubes.
}
Thoroughly rinse the empty combustion tube with ultrapure water and dry it well.
6.7.2
Filling the combustion tube
NOTICE
Sweat from your hands can reduce the service life of the combustion tube.
Alkaline salts from the sweat of your hands can cause crystallization in the quartz glass
when heating the combustion furnace. This reduces the service life of the combustion
tube.
¡
Avoid touching the cleaned combustion tube with your hands during filling. Wear
protective gloves.
¡
Only fill completely dried combustion tubes.
¡
Wipe off any finger marks with a cloth wetted with pure alcohol.
