D.A.S. Audio Aero - Manual (Page 4)

2. RIGGING SYSTEM
2.1WARNING
This manual contains needed information for
flying D.A.S. Audio line array systems, description of
the elements and safety precautions. To perform any
operations related to flying the system, read the
present document first, and act on the warnings and
advice given. The goal is to the allow the user to
become familiar with the mechanical elements
required to fly the acoustic system, as well as the
safety measures to be taken during set-up and
teardown.
Only experienced installers with adequate
knowledge of the equipment and local safety
regulations should fly speaker boxes. It is the user's
responsibility to ensure that the systems to be flown
(including flying accessories) comply with state and
local regulations.
The working load limits in this manual are
the results of tests by independent laboratories. It is
the user's responsibility to stay within safe limits. It is
the user's responsibility to follow and comply with
safety factors, resistance values, periodical
supervisions and warnings given in this manual.
Product improvement by means of research and
development is on going at D.A.S. Specifications are
subject to change without notice.
To this date, there is no international
standard regarding the flying of acoustic systems.
However, it is common practice to apply 5:1 safety
factors for enclosures and static elements. For slings
and elements exposed to material fatigue due to
friction and load variation the following ratios must be
met; 5:1 for steel cable slings, 4:1 for steel chain
slings and 7:1 polyester slings. Thus, an element with
a breaking load limit of 1000 kg may be statically
loaded with 200 kg (5:1 safety factor) and
dynamically loaded with 142 Kg (7:1 safety factor).
When flying a system, the working load
must be lower than the resistance of each individual
flying point in the enclosure, as well as each box.
Hanging hardware should be regularly inspected and
suspect units replaced if in doubt. This is important to
avoid injury and absolutely no risks should be taken in
this respect. It is highly recommended that you
implement an inspection and maintenance program
on flying elements, including reports to be filled out by
the personnel that will carry out the inspections. Local
regulations may exist that, in case of accident, may
require you to present evidence of inspection reports
and corrective actions after defects were found.
Absolutely no risks should be taken with
regards to public safety. When flying enclosures from
ceiling support structures, extreme care should be
taken to assure the load bearing capabilities of the
structures so that the installation is absolutely safe.
Do not fly enclosures from unsafe structures. Consult
a certified professional if needed. All flying
accessories that are not supplied by D.A.S. Audio are
the user's responsibility. Use at your own risk.
D.A.S. Audio AERO-38 and AERO-182 line
array systems, include 2 rigging structures on each
side of the box. Manufactured from zinc plated steel
they are painted black and are affixed to an internal
plate with special crop resistant screws. Two special
stainless steel guides are assembled to each of the
structures: G1A48 (front guide) and G2A48 (back
guide), allow for stacking or flying of boxes.
To lock both guides, six (6) quick release safety pins
(supplied) must be used.
The G1A48 front guide provides a solid
connection to the box and whatever is on top of it,
while the G2A48 rear guide determines the vertical
splay angle (whether stacked or flown), as a function
of the hole where the pin gets inserted.
2.2 DESCRIPTION/ACCESSORIES
Splay
angles can be changed from 0º to 3.2º in 0.8º
increments and from 3.2º to 9.6º in 1.6º increments.
Aero-38
Manual del usuario/ User´s manual 44
G2A48
G1A48
QUICK RELEASE PIN 8X30
(6 UNITS PER CABINET)
To aid the setting of the G2A48 guide in the
corresponding hole in the top box, each hole is labeled
with an associated angle, both for stacked and flown
applications. To fit the guides into the holes, highly
resistant 8 mm quick release pins with a ball safety
lock are used.
4.8º
6.4º
8º
9.6º
3.2º
1.6º
0º
0.8º
STACK
4.8º
6.4º
8º
9.6º
3.2º
1.6º
0º
0.8º
2.4º
FLY
Splay angles