Thermo Scientific EASYpure RoDi Operating Manual page 37

Ultrapure water purification system
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Section 7
Section title
RO Membrane Rinse-Up
(continued)
7-2
EASYpure RoDi
5. Two Hour New Membrane Rinse - Allow the unit to operate until the
display shows "Er7" (approximately 2 hours.) This will rinse the new
membrane of its preservatives. It is possible that during this time the
"Low RO Purity" LED may illuminate.
6. After the membrane rinse, the unit can be shut down and the reservoir
drain plug can be reinserted (insert completely, then back out very
slightly).
7. Again apply power to the system and press the 'Start/Stop' switch to
start operation. Let the reservoir fill completely (may take up to six
hours). During the filling process, the unit pump may turn on/off and
the unit display may alternate between "Add" and displaying a purity
value, as the cartridges are slowly wetted. Reservoir will be completely
full when the 'RO System Operating' LED is no longer illuminated.
8. Place the unit into "IdL" by pressing the START/STOP switch.
9. Install the hose barb fitting (included with accessories) into the draw-
off valve assembly and place a suitable container under the drawoff
valve.
10. Press the START/STOP switch and open the draw-off valve.
11. Rinse 1/2 of the total reservoir volume through the cartridges into the
container, close the draw-off valve and discard the water.
12. Remove the hose barb fitting from the draw-off valve. Keep the hose
barb fitting for future use.
13. Remove the new 0.2-micron final filter assembly from its bag and
insert it into the draw-off valve. Gently tighten, turning the filter to
the right. Remove the protective cap from filter.
Note It is suggested that Teflon® tape be applied to the threads of the 0.2
micron final filter to ensure a tight seal.
14. Open the draw-off valve and flush the remaining 1/2 reservoir volume
of water through the 0.2-micron final filter. "Add" will be displayed
when the tank is empty.
15. Close the draw-off valve and replace protective cap on filter.
16. Allow the reservoir to refill itself and the system to go into
recirculation.
Teflon® is a registered trademark of DuPont
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Thermo Scientific

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