Switching the REDOX potential unit on
The REDOX potential measuring and regulating unit has two functions. The REDOX potential unit
measures the redox potential of the water with an electrode and has digital display to show the
rate. A connected ozone generator can be accessed and is turned on or off, depending first of all
on the measured redox potential and secondly, depending on the adjusted set-point of the REDOX
potential unit. If the measured redox potential is higher than the adjusted set-point, the ozone
producer is switched off.
If the measured rate is lower than the adjusted set-point, the ozone producing unit is turned on.
The potentiometer (4) is used for adjusting the required set-point. When the switch for measured
amount/set point amount (2) is held pressed; the set point is shown in the display. The required
amount can be adjusted (4) on the potentiometer by using the screwdriver (10). When letting go the
switch, the current measured amount appears in the display again.
The light-emitting diode (3) shows whether the power tension is turned on for accessing the ozone
generator. If the REDOX potential amount is higher than the required rate, the light-emitting diode
and the power tension are switched off automatically. If the REDOX potential amount is lower than
the required rate, the light-emitting diode and the power tension are automatically switched on.
Usage, cleaning and maintenance of the REDOX potential electrode
When in everyday use, the safety-cap on the electrode foot must be taken off. Make sure that the
metal sensor (gold or platinum) and the diaphragm are surrounded by a lot of water in order to
avoid deposits. The measured amount stabilizes after approx. 15 to 30 minutes. If the measuring
electrode is not in water, the sponge in the foot cap must be moistened again and it must be put on
to the electrode foot. The electrode shouldn’t dry out! The electrode foot should not be touched by
bare fingers in order to avoid the electrode from getting greasy.
After a while, a thin layer of common algae will settle at the metal base of the electrode foot (7).
Algae can not always be recognized with the naked eye. However, this algae residue may hinder
the correct measuring amount of the REDOX potential unit. If the REDOX potential measuring and
regulating unit shows unrealistic amounts, then the metal plate must be cleaned with the brush
(11). In order to remove the algae layer from the electrode (7), the cleaning brush (11) should be
used carefully without pressing it down and if possible, brushing only in one direction two or three
times, to prevent scratching the soft metal. If the metal plate is scratched a lot, but otherwise clean,
the REDOX potential unit will still work properly; but it then may take more time to measure current
amounts, compared to a brand new unscratched metal plate.
