188 Instruction Manual QuickTOC
®
ultra
IECEx 12E5119
8 Care and Maintenance
8.7 Perform Maintenance Actions LAR | PROCESS ANALYSERS AG
Disassembly:
1. Switch the furnace off from the display “Service Actions” (Chapter 7.8.2 from page 118) and let it
cool for two hours.
2. Move the Y arm to the right using a test run (Chapter 7.8.3 from page 120).
3. Loosen the maintenance cover screws on the bottom of the analyser and remove the maintenance
cover.
4. Undo the screws of the second bottom grid behind it and detach it. Now the reactor foot is visible.
5. Unscrew the four black spacer bolts (there are two for the high salt option).
6. Unscrew the three screws from the seating of the reactor foot.
7. Undo the screwed insert with teflon tube from the reactor foot seat.
8. Carefully pull the reactor foot from the reactor pipe end and put it to one side.
9. Unplug the injection port connector.
10. Undo the injection port by carefully turning it anticlockwise by hand.
11. Carefully undo in a crosswise sequence the screws of the furnace head.
12. Undo the tube from the tube connector.
13. Take the furnace head and injection port from the reactor pipe and place both to one side.
14. Ensure that the furnace head, injection port and reactor foot are removed.
15. Once the furnace has cooled completely (after about two hours), use heat-resistant gloves to pull
the reactor pipe from the furnace.
16. Place the reactor pipe onto a fire-resistant surface or put it into a bucket filled with sand (with the
taper pointing downwards) and let it cool completely.
Replacement:
1. If the reactor pipe is damaged, replace it with a new reactor pipe.
2. Note the sequence for filling the reactor pipe.
3. Position the ceramic sieve (No. 5 in Fig. 129, page 188) horizontally on the taper of the reactor
pipe / allow it to drop into the reactor pipe.
4. Shake the reactor pipe to move the ceramic sieve into a horizontal position. (You can use a torch to
check the position).
5. Carefully insert the long protective pipe (No. 2 in Fig. 129, page 188) into the reactor pipe from
above..
• Fill the ceramic balls with diameters 3.5 mm - 4.5 mm (No. 4 in Fig. 129, page 188) up to the height
specified (210 mm, measured from the top edge with a tape measure).
• Fill the ceramic balls with diameter 1.6 mm (No. 3 in Fig. 129, page 188) up to the height specified
(170 mm, measured from the top edge with a tape measure).
• Fill the ceramic balls with diameters 3.5 mm - 4.5 mm (No. 4 in Fig. 129, page 188) up to the height
specified (150mm, measured from the top edge with a tape measure).
Reassembly:
1. Place the green protective seal for the reactor pipe onto the furnace.
2. Push the filled reactor pipe into the centre of the furnace from above.
3. Place the furnace head onto the furnace and reactor pipe.
4. Connect the black tube to the tube connector provided.
5. Tighten in a crosswise sequence the attachment bolts of the furnace head with the furnace head
panel.
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 bet-
ween the reactor tube and the protective tube.
!
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