35
Maintenance and Troubleshooting
27.
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.
28.
When cleaning is complete, unplug the
sensor from the cleaning center and re-install
the plastic sensor base for the rest of the
procedure.
29.
For DG33619 regeneration cell, unscrew the
regeneration cell from the sensor head.
30.
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.
31.
With the help of a pair of tweezers, remove
the old O-ring from the sensor body.
32.
Replace the O-ring with a new one from the
recharge kit.
