9.
Close inlet and outlet valves.
10. Allow the disinfecting solution to stand
for one half hour.
11. Open the inlet and outlet valves and
flush the system for 10 minutes.
12. Close the shutoff valve on the inlet
side of the system and open the out-
let valve to depressurize the system.
13. Carefully remove the canister(s) from
the system, and discard the solution
remaining from the canister(s). Do not
rinse the canister(s).
14. Install fresh cartridge(s) in the system
as explained in Initial Operation.
15. Turn to the Operation section of this
manual for filling procedure and nor-
mal operation.
Cleaning the Resistivity Cell
Clean the resistivity cell as follows:
1.
Disconnect power to the system.
2.
Close the shutoff valve on the inlet
side of the system.
3.
Open the outlet valve.
4.
Remove meter and cell assembly
from the head.
5.
Wash the cell in a mild detergent
solution or a 10% inorganic acid solu-
tion (follow chemical manufacturer’s
17
M
AINTENANCE AND
S
ERVICING
Warning
Depressurize system prior to
attempting to remove meter and
cell assembly.
Caution
The cell electrodes are etched to
improve wetting characteristics.
Do not mechanically abrade or
damage this surface.
