148 User Manual QuickTOC
®
purity
ATEX 2 04E3920
8 Care and Maintenance
8.3 Care and Maintenance Tasks LAR | PROCESS ANALYSERS AG
9. Remove the furnace head and injection port from the reactor tube and set aside.
10. Make sure the furnace head, injection port, and reactor foot are removed.
11. After cooling the oven (about 2 hours), pull the reactor tube out of the oven. Use heat-resistant
gloves.
12. Place the reactor tube on a fireproof pad or place it with the taper down in a sand-filled bucket and
allow to cool completely.
Replacement:
1. If the reactor tube is damaged, replace it with a new reactor tube.
2. Observe the order of filling the reactor tube.
3. Place the ceramic sieve (4, Abb. 104, Seite 147) horizontally on the taper of the reactor tube or let
it fall into the reactor tube.
4. Shake the reactor tube to bring the ceramic sieve into a horizontal position (you can use a
flashlight to check placement).
5. Carefully insert the protective tube (1) from above into the reactor tube.
6. Fill the ceramic balls with a diameter of 7 mm (3) to the specified height (190 mm, measured from
the top edge with a measuring tape).
7. Fill the ceramic balls with a diameter of 3.5 mm - 4.5 mm (2) to the specified height (150 mm,
measured from the upper edge with a tape measure).
Assembly:
1. Place the green protective gasket for the reactor tube on the furnace.
2. Push the filled reactor tube into the center of the oven from the top.
3. Place the oven head on the oven and reactor tube.
4. Connect the black hose to the intended hose connection.
5. Screw the three fixing screws of the furnace head with the oven head plate crosswise.
6. Carefully tighten the injection port until a slight resistance is felt (the injection port should point
diagonally to the left front).
7. Insert the plug of the injection port again.
8. Attach the reactor foot receptacle to the reactor foot plate with three M4x30 screws.
9. Connect the Teflon tube (PFA) to the screwed connection.
10. Screw the screwed connection to the reactor foot receptacle.
11. Insert the reactor bottom from below onto the reactor tube.
12. Screw in the distance bolts (4x).
13. Pull the reactor bottom down so that the gas path is not blocked by the reactor tube.
14. Attach the floor grate again.
15. Reinstall the maintenance flap.
16. Dispose of the old reactor tube filling and, if necessary, the old reactor tube.
17. Switch on the oven via the "Service actions" display (Kapitel 7.2.12 ab Seite 106).
Warning
Damage due to improper filling
Incorrect filling of the reactor tube can damage the reactor tube.
Use a funnel to fill the ceramic balls so that the ceramic balls do not fall between the
reactor tube and the protective tube.
!
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