General Cleaning Instructions - Thermo Scientific EASYpure II RF Operating Manual And Parts List

Cleaning Resistivity Cell
(continued)
General Cleaning
Instructions
Thermo Scientific
9. Carefully remove and discard the o-ring before cleaning the cell.
10. Wash the cell in a mild detergent solution followed by a 10%
Hydrochloric or 10% Sulfuric acid solution (follow acid manufacturers
warnings and recommended handling procedures found on package
labels and Material Safety Data Sheets). This may be done in an
ultrasonic cleaner or with a soft brush.
Warning Carefully follow manufacturer's safety instructions on labels of
chemical containers and material safety data sheets.
11. Thoroughly rinse the cell in deionized or distilled water following the
detergent and/or acid cleaning.
12. After cleaning, reinstall with the replacement o-ring on cell.
13. Reinstall the cell and hand tighten. Reroute the cable up through the
housing, reinstall the EMI/RFI suppression filter (loop wire 1 time
around filter) and reconnect cell lead to meter board.
14. Reinstall membrane switch lead. While lifting dispense handle, replace
the front cover. Reinstall the 0.2 micron final filter.
15. Reinstall the EASYpure II RF top cover.
16. Reinstall the Ventgard cap and 0.2 micron final filter.
17. Reattach the power cord and reconnect the unit to the power supply.
18. Refill the reservoir with feedwater and operate normally.
Wipe exterior surfaces with lightly dampened cloth containing mild soap
solution.
Section 9
Maintenance and Servicing
s
EASYpure II RF 9-5