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SECURE PAYMENTS
BY
www.GHL-Direct.com
GHL Profilux Aquarium
Computer Controllers |
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GHL
FREQUENTLY ASKED QUESTIONS |
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Do I implicitly need a PC to operate your aquarium computers?
No. All functions and settings can be made via the key pad.
The water temperature lies almost the whole day above the set value of
23°C, but the heating is never switched in. Is my illumination the cause (4
x 80W T5)?
T5-lamps are indeed more efficient but nevertheless they also dissipate
warmth. If a cooling - which can be controlled by our ProfiLux computer - is
too elaborate for you, then we recommend to reduce the illumination period
and/or intensity.
The radio clock does not always display reception. Shall I although use
DCF?
Yes, the internal clock keeps on running when there is no reception. The
clock is sufficiently synchronized, also if there is only occasionally
reception.
Can all tubes be dimmed?
Most of the tubes can be dimmed without problems. But some tubes can’t be
dimmed down to 1%. Further details can be obtained from the tube
manufacturer.
What do I have to keep in mind before dimming a tube?
It is important to burn the tubes in before they can be used for dimming. To
burn tubes in, they are operated (not dimmed) for at least 100h at full
power. The instructions of some tube manufacturer can vary from that. If a
tube is not burned in properly, then this can result in a shorter
durability!
On some days our tubes extinguish again after a short moment in the low
dimming settings. What is the reason?
Those tubes are obviously not suited for dimming. Either you use other tubes
or you adjust the low dimming limit a bit higher.
How is it possible to vary the illumination colour with your light bar
and the aquarium computer?
Up to 8 lamps can be dimmed separately. If you use differently coloured
tubes or LED-lamps, their colours can be mixed freely. So e.g. sunset or
moonlight is possible.
What is the reason that false pH-values are displayed when the
illumination is switched on, especially during a dimming process? I have a
self-constructed lamp.
The pH-electrode measures very little voltages, so electromagnetic fields in
the water can lead to false displayed values. Electronically dimmable
ballasts produce strong fields if they are not properly grounded and
screened. With light bars from GHL those problems can’t occur since on the
one hand high-quality electronic ballasts are used and on the other hand
they are well-grounded and are equipped with an internal shroud. When you
construct a lamp on your own you have to pay attention that the electronical
ballasts are grounded and that a grounded shroud is between electronical
ballast and water surface!
I have bought your aquarium computer already one year ago. Since then,
some functions have come up that I would also like to use. Can I update my
device?
Yes. Send your device to us, we will program it with the latest firmware and
will send it back to you after a complete function test. For this, we charge
a low costs part. Alternatively you can also carry out the update on your
own.
Can the illumination be reduced at noon for an algae prevention?
Yes. The brightness processes are freely programmable, so the illumination
can for example be reduced at noon for a certain time to 30%.
Do I always have to dim to 100% respectively 0%?
No. The dim setting can be made for any desired value.
Is it also possible to connect a “Carbo Plus”-device instead of a
solenoid valve?
This is possible. Here the device should be adjusted a bit higher than in
the normal operation so that the control can work.
Why don’t you have 2 sensors for the temperature control?
Due to our special control function, bottom heating and glow bar are
operated also with only one sensor in a way that the temperature gradient
from ground to water is optimal.
Can I also connect a light bar of another manufacturer?
This is mostly possible. You have to keep in mind that in most of the
dimmable light bars of other manufacturers no power shut-off is integrated
and that only the 1V-10V-control signal is lead through. To enable a
complete shut-off, there are two possibilities:
Shut-off of the power supply of the light bar via a switchable powerbar of
the ProfiLux which is connected with a dimming channel
Shut-off via our circuit board EVG-AP or the lamp control box LF-ABOX
I have read that ProfiLux can also control current pumps. How does this
work?
Here you need a controllable current pump with a control input. This control
input is connected to one of the 1-10V-interfaces. This is of course only
possible if not all outputs are already occupied with lamps.
L4 shall have the same dimming process as L2. Is this also possible
without having to programm L4 exactly as L2?
You don’t have to do this work - simply set the 1-10V-interface L4 to
dimming channel 2, then L2 and L4 work in the same way.
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