Xylem CellOx 325 Dissolved oxygen sensor Manuel d'utilisateur Page 8
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Noté. / 5. Basé sur avis des utilisateurs
Maintenance, cleaning, replacement CellOx 325
24
5.3 Changing the electrolyte and membrane head
Caution
Before starting to work with the sensor, please note the GENERAL
MAINTENANCE INSTRUCTIONS on page 23.
General
information
WTW delivers the sensor ready to operate (see section 3). The electrolyte
solution and the membrane head must only be replaced if:
l a calibration error occurs and the membrane is heavily contaminated
l the membrane is damaged
l the electrolyte solution is exhausted
l in case of a leak message by the measuring instrument.
Changing the electrolyte solution and the membrane head
Unscrew the membrane
head.
Caution:
Electrolyte solution!
For disposal of the membrane
head and electrolyte solution,
see section 5.6.
Rinse the sensor head with
deionized water.
Carefully rub and dry the
counter electrode with a lint-
free paper towel.
Immerse the sensor head in-
cluding the counter electrode
in RL/G cleaning solution.
Allow to react for 1 to 3 min-
utes.
Thoroughly rinse the sensor
head with deionized water.
Water the counter electrode in
deionized water for at least
10 minutes.
RL/G H O
2
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