190 Instruction Manual QuickTOC
®
ultra
IECEx 12E5119
8 Care and Maintenance
8.7 Perform Maintenance Actions LAR | PROCESS ANALYSERS AG
13. Plug the injection port connector back in.
8.7.6 Replace Big Furnace Head Seal (Silicone O-Ring with PFA coat)
Precondition: - Big furnace head seal is damaged.
1. Wear heat-resistant gloves.
2. Unplug the injection port connector.
3. Carefully undo in a crosswise sequence the screws of the furnace head.
4. Undo the tube from the tube connector.
5. Take the furnace head and injection port from the reactor pipe.
6. Undo the injection port on the furnace head by carefully turning it anticlockwise by hand.
7. Carefully remove the old, big furnace head seal (O-ring with PFA coat) from its groove using pliers
or a small slotted screwdriver.
8. Insert a new, big furnace head seal (O-ring with PFA coat) into the furnace head groove.
9. Place the furnace head onto the furnace and reactor pipe.
10. Connect the black tube to the tube connector provided.
11. Tighten in a crosswise sequence the attachment bolts of the furnace head with the furnace head
panel.
12. Careful tighten the injection port by hand until slight resistance is felt (the injection port should point
to the front left at an angle).
13. Plug the injection port connector back in.
8.7.7 Replace Injection Tube
Precondition: - Injection tube is highly contaminated or damaged.
1. Undo the tube connectors of the injection tube.
2. Remove the old injection tube and replace it with a new one having the same length.
3. Attach the new injection tube at the tube connectors provided.
8.7.8 Replace Viton Tube
Precondition: - Viton tube is highly contaminated or damaged.
1. Undo the tube connectors of the viton tube.
2. Remove the old viton tube and replace it with a new one having the same length.
3. Attach the new viton tube at the tube connectors provided.
Danger
Danger of burns
Allow the oven to cool completely (2 hours in total). One hour after switching
off the furnace, the temperature of the reactor tube is still about 400° C to
500° C!
Always use heat-resistant gloves when working on the stove.
Notice
Only use LAR tubes.
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