Care And Maintenance; Technical Data - Dennerle Classic-Line Notice D'emploi

7. Setting the number of bubbles
Rule of thumb for the basic setting*: start with approx. 20 bubbles per
minute per 100 l of aquarium water, i.e. for a 200-l aquarium, for
example, use 2 x 20 = 40 bubbles per minute.
Adjust the CO supply to the desired CO content in small steps spread
2 2
over several days. Please note: The more vigorously the surface of the
water is set in motion (e.g. by filters, additional aeration), the more
CO will be expelled from the aquarium again.
2
• Open cylinder valve slowly by turning
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the handwheel in anti-clockwise direc-
tion. Unscrew valve as far as it will go,
then screw in again by one half-turn.
The cylinder pressure manometer will
now indicate approx. 60 bar (at 20 °C).
• Slowly open the needle valve, initially
only very slightly, until the first bubbles
issue from the opening of the bubble
counter in the Micro-Perler (green part).
• Set the desired number of bubbles on
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the needle valve:
- Turn in clockwise direction to reduce
the number of bubbles
- Turn in anti-clockwise direction to
increase the number of bubbles.
Please note: There is always a certain
delay before the number of bubbles changes in response to adjust-
ment of the needle valve. The number of bubbles should thus be set
with due care.
• Check the number of bubbles regularly in the first few days, correc-
ting as necessary. After this initial period it is generally sufficient to
check the number of bubbles once a week.
• Fit the protective cap to the needle valve to prevent unintentional
adjustment.
* IMPORTANT: These bubble counts apply for the Micro-Perler only.
Different bubble counts may apply when using different diffusors, as the
bubble size is highly dependent on the equipment used. Please obser-
ve the relevant instructions for use.
DENNERLE professional tip
• It is easiest to measure the CO content using the DENNERLE
2
CO Long-term test Correct. The test directly and perma-
2
nently indicates the CO content of the aquarium water on the basis
2
of its color. GRÜN corresponds to the optimum value of between 20
and 25 mg/l. Further aids or water testing to determine CO
are not necessary!

Care and maintenance

8. Replacing the CO cylinder
2
• Close cylinder valve.
• Let off any residual pressure in the pressure reducer by opening the
needle valve. Close needle valve. Caution: Tighten only gently!
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• Unscrew pressure reducer from CO cylinder and screw onto refilled
2
reusable CO cylinder. Reset number of bubbles.
2
IMPORTANT: Reusable CO cylinders may only be refilled by authorised
2
CO filling stations!
2
Special information: The needle valve is intended only for fine adjust-
ment of the number of bubbles. Always close the cylinder valve in order
to shut down the CO supply for a prolonged period!
2
Unscrew the pressure reducer when the cylinder is to remain out of use
for a prolonged period.
9. Examining the special CO check valve
2
The check valve protects your valuable pressure reducer from corrosion
caused by back-flowing water. It will operate reliably over a very long
period. However, as dust and metal particles may collect on the sealing
surfaces over the course of time, the check valve should be examined
every 2 years at the latest and replaced if necessary.
Examination procedure:
• Close needle valve on CO pressure reducer.
2
• After 24 hours, unscrew the coupling ring on the side of the check
valve facing the pressure reducer.
• Pull off CO hose and check whether any water has entered into the
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hose. If so: Replace check valve. If not: Reconnect hose to check
valve.
• Reset number of bubbles.
Don't worry: An effectively functioning aquarium will normally have no
problem coping without a CO supply for 24 hours.
2
Important note: Use only check valves designed for use with CO
as the special CO check valve from DENNERLE. Standard air
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check valves may become brittle through contact with CO
a short space of time, resulting in leaks. This usually goes unnoticed.
10. Cleaning the CO Micro-Perler
2
If necessary, clean Micro-Perler using water and a brush. Do not use any
detergents. The ceramic diffusor can be removed for cleaning by unscre-
wing the black screw cap.
What if ... – Troubleshooting
Fault Cause
A faint hissing sound Pressure reducer is
is to be heard at the skew or has not been
levels screwed connection screwed in tight
2
between pressure enough.
reducer and CO
2
cylinder.
Washer defective.
Fault
Bubbles no longer
visible at the CO
Micro-Perler.
Upgrade options
Level 1: The DENNERLE CO
is controlled by a time switch and cuts off the CO
night, as plants do not consume any CO
valuable CO
Level 2: The DENNERLE pH controller 588 Digital
Comfort measures the pH value in the aquarium conti-
nuously and controls the pH value and the CO
cisely and fully automatically via the CO
valve Comfort.
Professional tips from DENNERLE
• Large quantities of valuable CO
king CO hoses. We thus recommend the special Softflex CO
2
hose from DENNERLE.
, such Even when using CO
2
nevertheless expedient to install an additional bubble counter close
within only to the pressure reducer. This enables the number of bubbles to be set
2
even more simply, quickly and exactly.
The DENNERLE CO
te in user-friendly reading coupled with exceptional precision: The
CO bubbles produced by the CO
2
weight of 0.125 mg and a volume of 0.063 ml. 10 bubbles per
minute thus correspond to a CO

Technical data

Reusable CO cylinder
2
• UN no. 1013, cl. 2, item: 2A, GGVS/ADR/RID/GGVE/EINECS 2046969
Remedy
• Capacity: max. 500 g CO
cage): see stamp on bottle; pressure at room temperature: approx.
Unscrew pressure
60 bar; test pressure: 250 bar; cylinder valve with burst relief devi-
reducer and screw
ce; connecting thread W21.8 x 1/14"
back in place without
• TÜV (technical control body) stamp: see imprint on bottle. Reusable
canting. Tighten cou-
CO cylinders must be examined by the competent institutions in the
pling ring firmly. 2
country concerned on a regular basis. The national regulations are to
be observed in this connection! In Germany, CO
Fit new washer. Ensure
examined by the TÜV technical control body every 10 years.
that washer is fitted cor-
• Important note: In case of excessive heat or pressure, the burst reli-
rectly and that the sealing
ef device on the cylinder valve will blow and CO
surfaces are clean.
Repair is to be carried out by authorised CO
NOT carry out repairs yourself!
Cause
Remedy
CO
2
CO cylinder empty.
Replace CO cylinder.
2 2
Factory-set operating pressure: approx. 1 bar. Connection for hose 4/6
2
mm. Precision needle valve with stainless steel needle and precision
Needle valve closed.
Open needle valve
thread. Self-closing pressure-relief valve.
and set number of
bubbles.
Guarantee period: 3 years from date of purchase (excluding parts
subject to wear)
Hose connection lea- Check hose connection
king. (DENNERLE leak detector
Spare parts and useful accessories
spray), replace if neces-
(available from specialist retailers)
sary.
3034 Stand
3032 Reusable 500 g CO
3026 Classic-Line CO
3028 2 washers for Classic-Line pressure reducer
night cut-off valve Comfort
3042 2 Longlife suction clips, black
2
supply at
1484 Leak detector spray
2
at night. This saves
3060 Special CO
2
.
3050 CO
2
3053 Special CO
3040 CO
supply pre-
For further information on the range of aquarium plants and accessories
2
night cut-off
from DENNERLE, consult your dealer or check out DENNERLE's free pro-
2
fessional tips!
DENNERLE professional tips are available from your dealer and on the
internet at www.dennerle.de!
may be lost every day through lea-
2
2
diffusors with integrated bubble counter, it is
2
bubble counter Exact offers the ultima-
2
bubble counter Exact have a mean
2
supply of 1.8 g or 0.9 litres per day.
2
; cylinder weight when empty (without
2
cylinders must be
2
Sales:
gas may escape.
Customer service:
2
filling stations only - DO
2
pressure reducer Compact for Classic-Line
cylinder with cage
2
pressure reducer Compact
2
Softflex hose, 2 m
2
bubble counter Exact
2
check valve
2
long-term test Correct
2
DENNERLE GmbH, D-66957 Vinningen
DENNERLE GmbH, D-66981 Münchweiler
www.dennerle.de
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