L-Acoustics ARCS II, Руководство по монтажу

Страница: 13 / 16

ARCSII_RM_EN_1.1
w w w . l - a c o u s t i c s . c o m
13
D. Installing the ARCBUMP flying frame
Identify the enclosure to be attached to the ARCBUMP
When attaching the ARCBUMP, the assembly is horizontal. The ARCBUMP is attached to one of the
enclosure at the end of the assembly, depending both on intended coverage and the enclosures’ orientation.
From behind
Intended coverage Connection panel Enclosure for ARCBUMP
40° left / 20° right
Up Right end
Down Left end
40° right / 20° left
Up Left end
Down Right end

Attach the ARCBUMP to the enclosure intended to be at the top of the array, by using two ARCOUPL bars:
a. Unlock and remove both shackles from the two coupling bars;
b. Adjust the position of the ARCS
®
II and the ARCBUMP so that the rails are aligned and slide the ARCOUPL bars
into the adjacent rails (top and bottom).

Secure the whole ARCS ® II assembly by installing the Ø12mm shackles on both ends of all the ARCOUPL bars, with
a safety sling attached between all the adjacent shackles (except for the bottom enclosure). If some shackles are
already attached to the bars, remove them and reinstall them with safety slings.

Install the two Ø18mm shackles on the ARCBUMP frame:
a. Secure a shackle to the identified hole on both side of the ARCBUMP frame;
Rigging hole on which securing the shackle
Refer to SOUNDVISION modeling to identify the hole that corresponds to the desired tilt angle.
back
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Serial n°
front
About site angle
As many variables can affect the actual site angle, it is recommended to use an inclinometer.
b. Compensate for the offset center of gravity when achieving the bridled suspension.
Single suspension point for 1 to 3 ARCS
®
II
When flying 1 to 3 ARCS
®
II, single point suspension is authorized. In that case, attach a Ø18mm shackle to the
center bar of the ARCBUMP frame. However, please note that the offset center of gravity will not be
compensated for.