The SZ10T electrode requires only little maintenance but should be checked regularly. Normal cleaning/rinsing of the body and replenishment of the electrolyte (see Start Up) should mostly be sufficient.
Mind that the use in some environments (e.g. algae) might block the membrane and that regular adequate cleaning will be required.
When putting the electrode aside for later use, it is best to rinse it and make sure no precipitations of any kind are present before storing it. Cleaning it with some detergent solution removes greases and many other impurities.
For short periods (days to a few weeks), have an electrode bottle filled with clean distilled water to be placed on the electrode (in absence of air). This way, the electrode remains humid and ready for direct use. The Oxygen present in the water will be consumed after some time and the electrode will no longer consume electrolyte. Before using it again, remove the electrode bottle and wait 5 minutes for the electrode to become fully active again and to verify it by e.g. calibration.
For longer periods (months) will it be better to remove the membrane cap, empty it, rinse and dry the electrode before putting it aside on a safe place. To take it back in use, reassemble the electrode according to the method described in Start Up.
Replace the membrane and O-ring only when damaged, not when calibration is no longer possible!
Remove the membrane by
Check how to place the membrane and O-ring: http://www.consort.be/wiki/do_probe#placement_of_the_membrane_capsule
After the electrode has been used for a period of time, the residual current may rise (see Zero point). To reduce the residual current, the following cleaning method is recommended.