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1.
What can you tell me about the focal length of the Aureol lens system?
Frank Tornyai, Selecon's Optical Engineer answers: "As the system is zoom you could have infinite values within the zoom range. Here are the EFL for a couple of beam angles.
At 25° beam angle the effective focal length is EFL = 66.7mm
@ 30° .............................................................. EFL = 58.2mm
@ 40°................................................................EFL = 45.2mm
@ 50°................................................................EFL = 38.3mm"
2.
How long can I expect the mirrors and reflectors in my Pacific
units to last?
7 -
10 years depending on operating conditions.
David Seaton, Head of Lighting at Auckland's premier entertainment
venue- the Aotea Centre had this to say on their experience
thus far:
"Thank
you for your queries on the 64 Pacific 12/28's purchased
over 3 years ago. So far, we have not had to replace any
of the components, however we have noted the quality of
the light output, the ease of operation and the overall
reliability of the units.
They are performing very well, in fact putting some of the
older units to shame."
3.
Is it possible to fit coloured glass filters to an Astral / Acclaim Cyc / wall wash colour cassette?
Yes, it is. To fit glass, remove one end of the colour cassette - slide the glass into the slot where the colour filter spring clip would normally be, replace the end cap. A word of warning - it is best to have this glass in 3 - 4 strips to allow for expansion/contraction over the glass surface.
4.
Why are certain lamp manufacturers recommended?
Optical
design for luminaires is a detailed process, which involves
close collaboration between Selecon and lamp manufacturers.
To get the best performance from your Selecon luminaire,
you should use only the recommended lamps listed in the
operation manual.
5.
What can I clean my lenses with?
At the
heart of the optical system in your Selecon Luminaire is
the lens. This is a custom designed lens that must be maintained
properly to get the optimum performance from your luminaire.
Use only soft tissue, cloth, and water to clean the lens.
Some glass detergents leave a residue that can bond the
glass to the lens holder, restricting lens expansion and
in extreme cases, causing the lens to crack. Some of the
lenses (in the Pacific family) have a coating, which can
be scratched if a 'hard' cloth (ie a cotton teatowel) is
used. The best approach is to treat the lens as same as
you would a camera or video lens.
6.
Why are there different goboholder sizes in the Pacific
family?
With
angles from 5.5 degrees to 90 degrees, the Pacific family
of profiles has the widest beam angle range currently available
in the world. When designing the Pacific, we made the decision
to maximise the beam quality for each beam angle range,
rather than trade off for a common gate size. The 5.5-13
degree Pacific zoom, and the 12-28 degree Pacific zoom have
a smaller gate (M size), which results in a more compact
luminaire, and efficient optics for the narrower beam angle.
The fixed beam angles, the 23-50 degree, and the 90-degree
Pacific all use a larger gate (A size) for increased efficiency.
7. Why is there a bent yoke on
some models of Selecon Profiles?
The
ZS1200, Arena, and non-Axial Acclaim profiles all have bent
yokes. These models have adjustable yokes to assist in balancing
the luminaire when an accessory is used on the profile,
and to help in awkward rigging situations. The bend in the
yoke is to enable the luminaire to be focussed straight
down if required, while not interfering with the shutter
handles.
8.
I am using a gobo in my profile, and can see faintly the
wording on the outside edge of the gobo. What's wrong?
Nothing's
wrong! The image you see is a secondary reflection from
the lens, and the silver surface of the gobo. This is an
infrequent occurrence, and can be remedied by painting the
outer surface of the gobo black, with a high temp spray
paint.
9.
Everything else on the Pacific family is black, but not
the heat sink. Why?
The
heat sink on the Pacific is unpainted to assist in the user
identifying this component as being separate to the lamp
body and not to be touched.
10.
There is a lot of plastic used on the Pacific family. Why?
The
engineering plastics we use on the Pacific family, are widely
used by other industries (ie the automotive, and marine
industries). Using them on the Pacific family is possible
because of the active heat management system. Plastics offer
several important advantages over metals in luminaire design:
more stable (less movement under heat), less weight, electrical
insulation, better heat insulation, and lower surface friction.
11.
Can I have Acclaim / Astral Cycs / Wall
Washers already fitted with barndoors.
Yes,
often only bottom flaps are requested for the Cyc or Wall
washers to clean up unwanted light off the stage floor or
groundrow, Bottom and top flaps can be fitted to the Acclaim
batten units. These are all factory fitted and must be ordered
at time of purchase.
12.
Pacific CDM - how far can the 150W CDM ballast be operated from the lamp?
North American market - for remote ballast operation the power supply must be within 15ft of the lamp.
International 220-240V - for remote ballast operation the power supply must be with 5m of the lamp. Maximum ambient temperature - 50 / -25 degrees C.
13.
Pacific CDM - what's the power current for the electronic power supply?
Current consumption for 150W 220-240V units = 0.70amp
Current consumption for 70W 220-240V units - 0.36amp The current in the first minutes is lower than the nominal current due to less lamp power at the start-up. The start-up current is therefore below the operating current and as such is not a design factor that has to be considered.
14.
How do I calculate light output readings for Astral products when I want to use CDM 3000K 150W or 70W CDM lamps?
Using the CDM 150W 4000K lamp data we quote as the benchmark -
Conversion factor for CDM 150, 3000 K - x 0.70
Conversion factor for CDM 70w 4000K - x 0.52
Conversion factor for CDM 70w 3000K x 0.50
15.
Pacific MSR - can I run my MSR units through a dimmer?
NO, absolutely not - unless of course, you want to blow everything up. These units are not designed to run through dimmers.
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