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8.2 Cleaning the controller
Always remove power from the controller before performing maintenance activities.
Note: Never use flammable or corrosive solvents to clean any part of the controller. Use of these solvents may
degrade the environmental protection of the unit and may void the warranty.
1. Make sure the controller cover is securely closed.
2. Wipe the controller exterior with a cloth dampened with water, or with a mixture of water and mild
detergent.
8.3 Replace the resin
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
The cartridge of resin can be replaced with a new cartridge, or as an alternative, keep the cartridge
and replace only the resin. In order to take advantage of the full system specifications, we
recommend the use of nuclear grade cationic resin.
1. Stop the sample flow using the sample flow adjustment valve.
2. Replace the cartridge or resin:
• Cartridge—refer to
• Resin—refer to
is added to compact the resin.
3. Open the degassing valve.
4. Open the sample flow adjustment valve and ensure everything is watertight and there are no
leaks.
5. Close the degassing valve when the measuring cell is free of air.
6. Set the sample flow to the required rate (between 5 and 20 L/h).
7. Reset the resin options. Refer to
Resin cartridge installation
Figure
7. Make sure to add deionized water at regular intervals when new resin
Resin option
D A N G E R
C A U T I O N
on page 9.
on page 19.
English 23
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