ardiis - architectural + commercial + display ardiis - architectural + commercial + display
News The Company Lighting Products Distributor Network Support Gallery Contact Us Sitemap

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.




  •  
    Return home Previous page Top of page
    Selecon New Zealand Ltd. © 2001 | Website by Styrofirm