Xylem WTW DurOx 325 Operating Manual page 10

Maintenance, cleaning, replacement
Carefully shake off the drops
of water.
Thoroughly rinse the sensor
head with electrolyte solution.
Readiness to measure
10
Fill a new membrane cap with
ELY/G electrolyte solution.
Ventilation area
points upwards
Hold the sensor inclined and
screw on the membrane head
fingertight using a paper
towel. Excess electrolyte
solution is forced out of the
ventilation area.
Note
For measurements under high pressure the filling must be
completely free of air bubbles.
After approx. 30 to 50 minutes, the sensor is ready for operation.
Subsequently calibrate the sensor.
Note
If you want to measure very low oxygen concentrations (< 0.5 %
saturation), we recommend to let the sensor rest overnight and
then calibrate it.
DurOx 325
Remove any air bubbles by
carefully tapping the
membrane head. Additionally,
you can prevent air bubbles
by throwing the first filling
away and refilling the
membrane cap.
Check the filling:
Inspect the face surface. No
air bubbles may be present
within the dashed circle. Air
bubbles outside this area do
not interfere.
ba25400e04
3 mm
10/2020