Ph-Controller; Replacing The Fuse; Note On The Co 2 Hose; Cleaning The Surfaces - Dennerle Comfort-line Exclusive DeLuxe Notice D'emploi

47 7.3.2 Cleaning the CO Maxi-Flipper
2
• Take CO Maxi-Flipper out of the
2
aquarium.
• Extract CO collector vertically.
2
• Place CO Maxi-Flipper into your left
2
hand, so that the suction cups point
towards the right. The open side (which
48 holds the collector) points upwards.
• Slide front side wall of the Maxi-Flipper
upward by approx. 2 cm.
48
• Remove the side wall. 49
• Remove the CO tube, do not pull it out.
2
• Now clean all components of the CO
Maxi-Flipper with warm water and a soft
49
sponge. Do not use any detergents.
• Reassemble the Maxi-Flipper in reverse
order.
Attention: reinsert the CO tube into the
2
side wall so that the lower end is at the
very bottom of the reactor.
50
7.4 Note on the CO hose
50 2
The special Softflex CO2 hose is self-sea-
ling and self-locking for maximum safety.
Always lever off the hose carefully with a
screwdriver, DO NOT pull off!
TIP: Large quantities of valuable CO
be lost every day through leaking CO
hoses. To avoid this, always use suitable
51
CO hoses, such as the
2
special Softflex CO hose from
2
DENNERLE.

7.5 pH-Controller

7.5.1 Replacing the fuse

If the connected solenoid valve does not open although the LED indica-
tes that the valve is on, either the solenoid valve or the fuse is defective.
• Checking the fuse: Connect a normal table lamp (max. 40 W) to the
socket on the power unit. Select a sufficiently low setting to ensure
that the solenoid valve is switched on. If the lamp does not light up,
the fuse is defective.
• Replacing the fuse: Disconnect the pH-Controller from the power sup-
ply. Unscrew fuse holder and remove defective fuse. Fit new fuse of
the same type (from electrical retailer) and screw fuse holder back
into place.
7.5.2 What will happen in case of a power failure?
In case of a power failure, all programmed settings and functions will be
retained in the internal permanent memory. As soon as the power supp-
ly to the pH-Controller is resumed, it will automatically perform the neces-
50
sary control actions to restore the pH level in the aquarium to the set
value.

7.6 Cleaning the surfaces

Use a moist cloth and a mild detergent. Do not use any aggressive deter-
47
gents or solvents!
8 What if ... Troubleshooting
8.1 CO fertilizer system
2
Fault Cause
A faint hissing sound is Pressure reducer is
to be heard at the scr- skew or has not been
ewed connection bet- screwed in tight
ween pressure reducer enough.
2
and CO2 cylinder.
Washer in the connec-
tion socket of the pres-
sure reducer is defec-
tive.
CO cylinder empty.
No bubbles on the
2
Maxi-Flipper
Needle valve closed.
Hose connection lea-
king.
51
Operating pressure too
may low
2
2
Maxi-Flipper is not fitted
CO bubbles issue from
2
in an upright position.
the hose but do not
rise, or do not rise any
Maxi-Flipper is still in
further after the first
the running-in phase.
step.
Bubbles bob around in Water is too agitated.
the water, but do not
rise.
Maxi-Flipper is not fit-
Gas escapes from the
ted in an upright positi-
side of the Maxi-
on.
Flipper's collector.
Waste air vent on the
CO collector is dirty.
2
CO collector is skew.
2
Algae formation, small
CO bubbles no longer
2
snails or accumulation
rise unhindered on the
of sludge in Maxi-
steps of the Maxi-
Flipper
Flipper.
Fault
The pH value in the
aquarium does not
attain the set level
8.2 CO night cut-off valve
2
Fault
Remedy
A faint hissing sound is
Unscrew pressure redu-
to be heard at the hose
cer and screw back in
connector of the night
place without canting.
cut-off valve or the
Screw finger-tight.
check valve
Fit new washer (see
above).
Indicator lamp is ON,
but no CO supply
2
Replace CO cylinder.
2
Open needle valve.
Check hose connec-
tion, replace if neces-
Indicator lamp is OFF,
sary.
but CO is supplied to
2
the aquarium
Set operating pressure
to approx. 1 bar.
Fit Maxi-Flipper in an
upright position.
8.3 pH-Controller
Await end of running-
in phase.
Fault
Calibration not possi-
ble, or "Err" appears
Restrict movement of
on display
the water or fit Maxi-
Flipper at a calmer
point.
Fit Maxi-Flipper in an
upright position.
Clean Maxi-Flipper.
Remove collector and
refit correctly.
Clean Maxi-Flipper.
Cause Remedy
Fault
CO supply rate too low
Increase number of CO
"F 01" appears on
2 2
bubbles step-by-step by
display
5 bubbles per 100 l of
aquarium water
Cause Remedy
Hose connection lea- Cut approx. 2 cm off the
king end of the hose, ensuring
that the cut is straight,
No supply of CO
slide hose onto connector
hough indicator lamp
as far as it will go and
for CO
secure with coupling ring.
2
CO cylinder empty Replace CO cylinder
2
2
Cylinder valve or need- Open cylinder valve or
le valve on pressure needle valve
reducer closed
Send night cut-off
Solenoid valve jammed
valve in to Customer
Service department
Solenoid valve jam- Send night cut-off
med or indicator lamp
valve in to Customer
Display blank
defective
Service department
Cause Remedy
The electrode is in pH Repeat calibration
7 (pH 4) calibration procedure, beginning
solution, but you have with pH 7
pressed the "pH 4"
("pH 7") key.
Calibrating solutions Use fresh calibrating
are contaminated/ solutions, repeat cali-
too old bration
pH-electrode soiled
Clean pH-electrode
pH-electrode worn Connect new pH-elec-
out or defective trode and calibrate;
carry out additional
calibration after 1
week
Cause Remedy
Electrode cable not Check connection
connected properly
Replace electrode
Electrode cable defec-
tive
Measured value out-
side of measuring
range
Problem with CO
, alt- Check CO system
2 2 2
supply (e.g. cylinder empty?
supply is ON Needle valve closed?
Hose connection lea-
king?)
Check connection,
Solenoid valve not
connected properly or replace solenoid
defective valve if necessary
See Point 7.5.1
Fuse defective
Connect connecting
Connecting lead not
connected lead properly and
secure with locking
screws
Controller defective Send controller in to
DENNERLE after-sales
service for inspection
51