Aqua Medic mV Manual de operação - Página 6
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1. Theory
The redox potential or oxydation-reduction potential (ORP) is an electric value that is a parameter
for oxydation and reduction process in the water. The redox potential is of special interest in the
aquarium:
to check the water quality in a seawater aquarium. The ideal range is between 300 and 400
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mV. It can be raised to the desired value by injecting ozone into the protein skimmer. The
higher the values are, the higher the percentage of oxydation is – the „cleaner„ the water
is.
to control anaerobic denitrifying filters. Here, the redox potential is used to check the
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activity. The ideal range for these filters is between -50 and -100 mV .
The redox potential is also used as a control parameter in other processes. In swimming pools, the
chlorination can be controlled by the redox potential. The minimum value for desinfection is
+ 700 mV.
2. Delivery
The AB Aqua Medic mV controller has to be supplied with a redox electrode. We recommend to use
the maintenance-free electrode of AB Aqua Medic. The ozoniser can be connected to the main plug.
3. Starting
1.
Plug in the 220 V, if not otherwise stated.
2.
Connect the mV electrode.
3.
Switch (3) to „M" (measuring).
The redox potential controller needs no additional calibration. However, it takes about 24 hours
until the value shown in the display is constant. If used constantly, the electrode should be
immersed all the time.
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