Aqua Medic pH controller Manual De Instrucciones página 4

With the purchase of this digital pH controller, you have decided to work with a quality instrument. It has been
especially developed for aquarium use. With this unit, you are able to measure and control the pH value of your
aquarium water.
1. Theory
The pH value is an electric value that is a parameter for the acidity of water. In the aquarium, the pH value
together with the carbonate buffer system is of special interest.
- In a fresh water aquarium, the pH value is responsible for the percentage of free CO
plants for photosynthesis. Fertilization with CO
for a good plant growth. With the pH controller, the pH value can be adjusted to a given set point and kept
constant by adding CO
- In a saltwater aquarium, the pH value and CO
addition of CO into the calcium reactor is controlled by the pH-controller. In addition, also Kalkwasser can
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be dispensed to increase the pH value after switching the control range (No. 9).
2. Delivery
The Aqua Medic pH controller needs a separate pH electrode and corresponding calibration liquids to start
work. The regulating unit (solenoid valve, dosing pump) can be connected to the adaptor plug.
Description of front panel:
1. Display
2. Display/relay on/off
3. Set/measuring switch
4. Calibration knob, pH 7
5. Calibration knob, pH 4
3. Starting and calibration
1. Connect to 100 – 240 V.
2. Connect the pH-electrode (No. 7).
3. Set switch (3) to „pH" (measuring).
4. Insert the electrode into the buffering solution pH 7. After 3 minutes, turn knob 4 (CAL pH7) until the display
shows pH 7 (use a small screw driver).
5. Flush electrode with distilled water.
6. Insert electrode in buffer solution pH 4 (or pH 9, depending on the desired range). After 3 minutes, turn the
knob (5) until the display shows pH 4 or 9.
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Operation Manual ENG
automatically.
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-addition are used in combination with a calcium reactor. The
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6. Set point adjustion
7. Connection for electrode (BNC-plug)
8. 220 V-plug / socket for regulating unit
9. Control range (turn left – pH decreases, turn right -
pH increases)
has been well-established for fresh water aquaria as base
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that is used by green
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