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- What is a xenon flashing beacon?
- A xenon flashing beacon is often referred to as a 'Strobe' beacon as it is similar to a
stroboscope in operation. It uses a filament-less discharge tube to provide repetitive
short bursts of high intensity light.
- Where would I use a xenon flashing beacon?
- Xenon flashing beacons are used where one or more of the following design criteria need
to be met:
- Low current
- High intensity
- Low susceptibility to vibration
- What is UC?
- UC means Universal Current. The beacon will function on either a DC or and AC supply.
- You talk about VRA, what is this?
- VRA = Voltage Range A!.....
- O.K. VRA is a voltage designation which means 'Any voltage between 12 and 100 volts dc
or 12 and 70 volts ac without need for user pre-selection'. The unit will accommodate any
supply within the designated range.
- What is the point of VRA?
- Stockists need only hold a limited number of products to maximise customer choice.
- Useful where only unusual voltages are available e.g. Fork Lift Trucks.
- What is the "SYNC" function?
- Most of our 7 Joule, 11 Joule, 16 Joule and 24 Joule Xenon strobe units are
factory-fitted with terminals that allow the user to achieve flash synchronisation across
a chain of beacons. The beacon at the head of the chain automatically assumes the
status of 'Master' and instructs each of the other beacons to flash in time - there is
therefore no need to either order separate master/slave units or get involved in
complicated wiring. The benefit of this is that, for example, with all beacons
flashing exactly in time the risk of triggering photo-induced epilepsy is reduced.
- What is Double Hit and Single Hit?
- This refers to the nature of the flash events and the spacing between flashes. The more
flashes per event, the more insistent the warning signal. Note also that
"deegee" is committed to continuous improvement, look out for new Triple Hit and
units with remote trigger capability in the near future.
- What does 1.5J, 2.5J, 5J, 7J, 11J, 16J and 24J mean?
- This is the total discharge energy of the flash event in Joules. Higher flash energies
give brighter flashes at the expense of drawing more current.
- What is Effective Luminous Intensity?
- Effective luminous intensity is a measure of how bright the flash seems to be. It takes
into account the duration of the flash an the response of the viewers eyes.
- Other companies refer to "Peak" intensity, what's that?
- Peak Intensity is the maximum intensity during the flash. As this is of very short
duration it is not recognised by the eye as necessarily being bright. A flash with a
moderate peak but a broader duration would appear to be brighter than a very short high
peaked flash. It is for this reason "deegee" quote effective intensities. Peak
figures are made available for comparative purposes only, "deegee" believes
these figures are misleading.
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