9009/6.(-ID)
Maintenance, cleaning, replacement
27
ba22207e08
07/2011
Thoroughly rinse the sensor
head with deionized water.
Water the counter electrode in
deionized water for at least
10 minutes.
Carefully shake off the drops
of water.
Fill a new membrane cap with
OX 920 electrolyte solution.
Remove any air bubbles by
carefully tapping the mem-
brane head. Additionally, you
can prevent air bubbles by
throwing the first fill away and
refilling the membrane head.
Rinse the sensor head with
electrolyte solution.
Hold the sensor inclined and
screw on the membrane head
fingertight using a paper tow-
el. Excess electrolyte solution
is forced out of the ventilation
area.
Check the filling:
Inspect the face surface. No
air bubbles may be present
within the dashed circle
(approx. the black area). Air
bubbles outside this area do
not interfere.
H O
2
O
X
920
O
X
920
4 mm
