Push the CO2 SAFE special hose onto the hose connection of the bubble counter
J
until the stop
and screw the locking nut tight again. Open the top screw cover of the bubble counter
J
, fill in
approximately two thirds water and close the cover again. Now loosen the cap nut at the top of
the bubble counter
J
, lead the CO2 SAFE special hose through the cap nut and insert it in the
fitting on the top of the bubble counter
J
, Now unscrew the cap nut again. Push the silicon
adapter
R
halfway onto the CO2 SAFE special hose. Now carefully push the hose connector onto
the diffuser
L
. The diffuser
L
is attached as close to the bed as possible with the suction cups.
The bubble counter
J
is attached to the aquarium from the outside. The check valve
K
has to be
on the bottom.
CAUTION: The white diffuser plate should be cleaned regularly with a soft brush. Larger CO2 bub-
bles indicate that the diffuser plate requires cleaning.
Assembly of the CO2 long-term test
D
CO2SET
200 / 400 / 600
Fill the cover with aquarium water up to the mark (≈ 1 mL). Add 4 drops of indicator fluid
e
.
Push on the gasket and contrast ring
O
and mount the lower part on the hood and turn it. Position
the CO2 long-term test in the aquarium at an easily visible location at medium height. For an exact
measurement of CO2 content by means of the color scale, install the CO2 long-term test on the
opposite side of the CO2 diffuser.
The discoloration of the indicator fluid displays the CO2 content of the aquarium water. The com-
parison with the color scale reveals the current CO2 value:
blue = not enough, yellow/light green = too much, green/dark green = proper amount.
Please note: The correct display of the CO2 content is displayed with a time delay of approximately
3 hours. The CO2 long-term test should be refilled with new indicator solution after every change
of water or at the latest after 2 weeks.
6. Putting into operation
CO2SET
200
After all components are installed, the CO2 supply can be opened on the adjustment knob of the
pressure regulator. Turn direction clockwise.
CO2SET
400 / 600
After all components are installed, the CO2 supply can be opened on the main valve of the pressure
regulator. Turn direction counter clockwise.
The CO2 supply is opened on the adjustment knob of the pressure regulator (turn direction clockwise)
until the manometer for the system pressure gauge
F
displays approximately 1.5 bar.
CO2SET
200 / 400 / 600
Open the fine control valve
D
on the pressure regulator until bubbles rise in the diffuser. It makes
sense to adjust the amount of bubbles to a low amount in the beginning. The amount can be increased
after a few hours until the right content is displayed in the CO2 long-term test.
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