Aqua Medic mV User manual

Operation Manual
mV Controller
With the purchase of this digital redoxpotentialcontroller, you have decided to
work with a quality instrument. It has been especially developed for
Aquarium use.
With this instrument, you are able to measure and control the redoxpotential
of your aquarium continously.

1. Theory .
The redoxpotential or oxidation-reduction pontential ( ORP ) is an electrical
value, that is a parameter for the oxidation and reduction processes in the
water. The redoxpotential is of special interest in the aquarium:
-to check the water quality in a seawater aquarium. The ideal range is
between 300 and 400 mV. It can be raised by injecting ozone into the
protein skimmer to the desired value. The higher the values are, the higher is
the percentage of oxidation – the „ cleaner „ is the water.
-to control anaerobic denitrifying filters. Here the redox potential is used to
check the activity . The ideal range for these filters is between
-50 and – 300 mV .
The Redoxpotential is also used as a control parameter with other processes .
In swimming pools, the chlorination can be controlled by the redoxpotential.
The minimum yalue for desinfection is + 700 mV.
2. Delivery :
The redoxpotentialcontroller MV 2001 C has to be supplied
with a Redoxelectrode.
We recommend to use the Redoxelektrode mV – o6 –200 .
The ozoniser can be connected to the main plug.

3. Starting
1. plug in the 220 V-/50 cycles, if not noted otherwise.
2. Connect the mV electrode
3. Switch (3) to „M“ (measuring)
The redoxpotentialcontroller needs no additional calibration. Howeyer , it takes
about 24h until the value shown in the display is constant. If used constantly,
the electrode should be immersed all the time.
4. Controlling
Adjustion of the set point :
-turn knob 3 to „ set „
-Adjust knob 4 ( set point adjustion ) to the desired value
-Turn switch 3 back to „ M „ ( Measuring ). The unit is now ready to use.
As soon as the actual mV- value drops below the adjusted set point, the
plug (6) is activated and the ozoniser is switched on.
5. Troubles
-The unit shows wrong values – clean the electrode.
-Redoxpotentialelectrodes have only a limited lifespan – depending on the
use, between 1 and 3 years .
Technical Data:
Display: 0.5 LED, 3-1/2 digits
Masuring range: mV – 1000 bis + 1.000
resolution: 1 mV
accuracy: */. 1mV (+1 digit)
relay contact: 5 amps. at 240 V ( 1000 W )
working temperature: 0 – 50° C
Humidity: belows 80%
control range: -500 bis +500 mV, digitally adjustable
others on request
control accuracy: */. 5 mV (+1 digit )
power connection: 220 V, 50 Hz, if not noted otherwise
dimensions: 150 x 85 x 40 mm
weight: 550 g

6. Operation manual for the Redoxpotentialelectrode
The redox electrode is not incluted, however it is necessary for the function of
the unit.
The mV electrode with a plastic shaft, is especially made for
the determination of the redoxpotential in water. It is used in aquariums, the
chemical indutry, medicine and research laboratorys.
6.1. technical Data :
measuring range: -1000 - +1000 mV
sample temperature: 5 – 60 ° C , ( short term )
connection: BNC – plug
material: plastic shaft , platinum
6.2. Measuring/ maintenance
-During the measuring, the platinum top has to be submersed in the sample
liquid.
a new electrode, or an electrode, that has not been in use for a longer
time,has to be submersed for at least 24hours.
Warranty
On the controller, we guarant 12 months on material defects. On the electrode
we warrant 6 months, but maximum 12 months, after leaving our factory.
Further claims are excluded.
The warranty is prooved by the original invoice.