22
UK
•
Begin with about 15 bubbles per minute in the JBL Taifun per 100 l aquarium water (this
corresponds to about 10 bubbles per minute using the bubble counter).
•
After one day, check whether the desired pH value has been attained in the aquarium.
•
Should this not be the case, increase the CO
2
supply to about 20 – 25 bubbles in the JBL
Taifun (approx. 14 - 16 bubbles in the bubble counter). If necessary, increase the supply in
further small stages until the required pH level is reached.
•
Check to make sure the pH level is maintained, so that the CO
2
level in the CO
2
permanent
test is also correct.
•
In the case of the
m
503 and
m
2003 CO2 kits, the pH computer automatically maintains the
selected pH level.
13 Note on the pressure indicated on the pressure regulator
The CO
2
gas in the CO
2
storage bottles is under high pressure. This pressure depends on the
ambient temperature. At room temperature (approx. 20°C), the left-hand pressure gauge of the
pressure regulator indicates a pressure of about 50 bar. This increases if the room temperature
rises. At 30 °C, the gauge therefore indicates about 70 bar. The pressure in the storage bottle
does not indicate the amount
of gas it contains. It remains constant and in line with the
surrounding temperature until shortly before the bottle is empty. The amount of CO
2
in a bottle
can only be estimated by weighing. The empty weight (tare) of the storage bottle is stamped on
the bottle. The current weight minus the tare weight equals the amount of CO
2
.
The pressure in the bottle is adjusted downwards by the pressure regulator to an easily
manageable pressure, known as the “operating pressure “. The right-hand pressure gauge of
the pressure regulator indicates the operating pressure. In the JBL
u
001 and
m
001 pressure
regulators, it is preset to approx. 1.5 bar. This is the optimum pressure for CO
2
fertilization
of aquariums. If required, however, the operating pressure can also be adjusted using the
setting screw, which is situated under the small black cover at the “nose” of the regulator. When
adjusting the operating pressure, it is important for CO
2
to be released i.e. the adjusting screw
should not be closed, as this would prevent adjustment of the new operating pressure.
14 Changing bottles
If the bottle pressure (left-hand pressure gauge) falls below 30 bar, the bottle will need to be
refilled (refillable bottles) or changed (disposable bottles) within the next 2 – 3 days.
Disposable storage bottles:
Disconnect the CO
2
hose from the pressure regulator and briskly unscrew the pressure regulator
from the bottle by turning anti-clockwise. This creates an initial hissing noise. Continue to
unscrew briskly until the pressure regulator is detached from the bottle. Dispose of the empty
bottle according to the local regulations for waste disposal. Connect a new bottle as described
in chapter 11.1.
Refillable storage bottles:
Close the bottle valve and disconnect the CO
2
hose from the pressure regulator. Open the
adjusting screw and release any pressure remaining in the pressure regulator until both
pressure gauges indicate 0. Disconnect the connecting nut of the pressure regulator from the
bottle valve. Have the refillable bottle refilled.
If no full refillable storage bottles are available at the moment, a disposable bottle can be used.
Using an Allen key (size 6), remove the bottle connection nut from the pressure regulator. The
resulting free thread fits disposable storage bottles.
Connect the filled refillable storage bottle or the disposable storage bottle as described in
chapter 11.1.
15 Technical data
JBL ProFlora
u
001
pressure regulator:
Bottle connection thread: M10 x 1
Bottle pressure reading on pressure gauge: 0 - 160 bar
