Hach-Lange ORBISPHERE A1100 Family - Manual (Page 37)

35
Maintenance and Troubleshooting
26. On the sensor cleaning and regeneration
center, turn the knob to the Cathode position
and press the TIMER switch. Again, watch
for the formation of bubbles and repeat the
cleaning process if necessary.
27. When cleaning is complete, unplug the
sensor from the cleaning center and re-install
the plastic sensor base for the rest of the
procedure.
28. Remove any remaining electrolyte by rinsing
the sensor head under a tap for 60 seconds,
aiming the jet of water directly onto the
sensor head.
29. With the help of a pair of tweezers, remove
the old O-ring from the sensor body.
30. Replace the O-ring with a new one from the
recharge kit.