JBL ProFlora pH Control
Measurement and control computer to control the CO2/pH values in aquariums

There are successor products for this item:
ProFlora pH-Control Touch
  • Promotes plant growth and leads to lively fish: measurement and control computer for the high-precision calculation and control of the optimal pH value in aquariums
  • Easy to mount and to operate: permanent wall mounting with mounting bar – removable. Measurement by means of separately available pH electrode (to be replaced about once a year, not included)
  • Digital measurement and control technology: graphic display, direct user interface, separate sensors for pH value and temperature, precision solenoid valve to control the bubble count
  • Automatic regulation: detection of the set and the actual pH value. Automatic calculation and supply of the required CO2 amount. Alarm function
  • Package contents: computer ProFlora pH-Control incl. wall mount, power supply unit, temperature sensor, buffer solution pH 7/pH 4, storage/revitalisation solution, distilled water, carbonate hardness test set, calibration cuvettes, 4 year warranty
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Product information

Healthy fish thanks to ideal pH value
The pH value defines the acidity of the water. It needs to be constantly checked and adjusted as necessary to maintain the health of the fish and plants. The correct pH value depends on the fish stock of the aquarium. The wrong pH value can cause stress and diseases.

Technical information:
Precision solenoid valve.
Separate pH value + temperature sensors.
Modern graphic display.
Sensor check during each calibration.
Error diagnosis after failed calibration.
Permanent display: pH actual/set value, sensor voltage, temperature, calibration reminder in days/hours, valve status, precision of measurement.
Set point adjustment: freely selectable or automatic calculation by means of auto pH.
Automatic temperature compensation during measuring and calibration.
Hysteresis freely selectable (upper and lower deviation from switching point).
Password key lock.
Alarm function pH (alarm range).
Alarm function temperature (range and set point alarm).
Selectable valve status.
Language selection: D/BG/F/NL/I/DK/E/P.
Reset function.

Universal power unit suitable for all common mains voltages worldwide. Electrode to be separately purchased to make sure that user always gets a brand-new sensor. The electrode needs to be replaced about once a year.

Details
This product is unfortunately no longer available

JBL ProFlora pH Control

Art. no.:
6341811
EAN Code:
4014162017604
Volume packaging:
10.400 l
Gross weight:
1790.000 g
Net weight:
1328 g
Weight factor:
1000
Size(l/h/w):
80/382/340 mm

Technical Data

FAQ
How does the JBL pH-Control recognise a “bad“ sensor?

The pH sensor transmits a voltage to the measuring device, which convert the voltage into the pH value.
This voltage does NOT remain constant throughout the service life of the sensor! It needs to be calibrated regularly. The device is thus informed about the age-related change in voltage and can display reliable values again.
The calibration takes place at pH 7 and pH 4.
At pH 7 a new sensor transmits a voltage of 0 mV (+/- a few mV) to the measuring device. The more the voltage at pH 7 deviates from 0, the older the sensor is. The deviation can occur at + or -. At a deviation of more than +40 or -40 mV the device rejects the sensor.
The error message OFFSET appears.
NOTE: The same error message appears if you accidentally begin to calibrate at 4!!
At pH 4 the sensor transmits a voltage of about +186 mV (when 7 is at 0 mV). This means that between the single steps (4-5; 5-6 and 6-7) there is in each case a difference of about 62 mV. The smaller this difference, the older the sensor. With differences below 30 mV the device rejects the sensor.
The error message DELTAV appears.
NOTE: The same error message also appears, when you accidentally calibrate twice at 7!!

IMPORTANT: Rejected sensors can often be brought “back into operation” if you soak them intensively in storage solutions (for several days)!

Why does the controller permanently indicate a too high/low pH value? And why doesn’t the calibration work although the sensor is new?

The cause can probably be fixed quite easily. The protective cap of the pH sensor needs to be removed before insertion into the aquarium / before the calibration, to carry out control / calibration correctly. The protective cap serves as storage and “reactivation” of the sensor with the storage liquid. It has to be removed for use inside the aquarium and during the calibration because no water from outside can pass through.

If the controller still displays an error, even after the removal of the protective cap, please read the FAQ with the several error messages in detail.

Why does the pH value jump in the display of the JBL ProFlora pH Control?

If the pH value is subject to greater fluctuation, this indicates a source of interference through another electronic device. Ballasts in light bars, for instance, create an electromagnetic field if they are not shielded against interference. This can disturb the sensitive sensor. When you unplug the power plug from the outlet the pH value suddenly stabilises. You can carry this process out with every electrical device in the aquarium to find the cause.

Through the use of separated power-carrying cables further disturbances can be avoided. Separating electrical circuits may also prove to be an advantage. The JBL pH controllers are manufactured and tested in accordance with DIN EN 55014-2 and do not interfere with other technical items. Thus wearers of pacemakers are not exposed to any danger through the JBL pH Control.

Should another technical item disturb your pH control, then it is not electromagnetically shielded according to this technical standard.

If the error still persists try removing the temperature sensor from the controller. If the value now remains stable, the temperature sensor may be defective.

What does OFFSET mean in the display of the JBL pH Control 12 V ?

The message OFFSET indicates: sensor voltage at pH 7.00 is outside the limit value, the sensor is too old, the cable is defective or no sensor is connected.

Remedy: Check the sensor cable for any signs of damage and repeat the calibration. If this does not work, replace the sensor and calibrate again.

What does DELTAV mean in the display of the JBL pH Control 12 V ?

This message indicates that the potential difference per full pH unit is smaller than 35 mV. The pH sensor is either too old, defective or was accidentally calibrated twice with the same buffer solution.

Remedy: Repeat the calibration and take care to use the buffer solution correctly. If this does not work, connect a new sensor and calibrate again.

Show more FAQs ...
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Instructions

Product tests & info

  • JBL ProFlora pH Control-Produkttest
    Size:
    517 kByte
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  • JBL ProFlora pH Control AQUACHARTS Aquaristik Test
    Size:
    2 MByte
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  • JBL ProFlora pH Control- Erfahrungsbericht
    Size:
    1 MByte
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  • JBL ProFlora pH Control-Erfahrungsbericht
    Size:
    1 MByte
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safety instructions

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    Filename:
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