L-Acoustics KARADOWNK2 Guida rapida
KARADOWNK2
rigging manual (EN)
Document reference: KARADOWNK2 rigging manual (EN) version 1.1
Distribution date: June 25, 2018
© 2018 L-Acoustics. All rights reserved.
No part of this publication may be reproduced or transmitted in any form or
by any means without the express written consent of the publisher.
Contents
Safety................................................................................................................................................................ 4
Instructions................................................................................................................................................4
Symbols................................................................................................................................................... 5
Welcome........................................................................................................................................................... 5
Mechanical safety...............................................................................................................................................6
Flown congurations................................................................................................................................. 6
Assessing mechanical safety...................................................................................................................... 6
Rigging system description.................................................................................................................................. 7
Rigging a Kara downll array under a K2 array...................................................................................................8
KARADOWNK2 specications........................................................................................................................... 12
3
Safety
Safety
Instructions
Inspect the system before any deployment.
Perform safety related checks and inspections before any deployment.
Perform preventive maintenance at least once a year.
Refer to the preventive maintenance section for a list of actions and their periodicity.
Insufcient upkeep of the product can void the warranty.
If any safety issue is detected during inspection, do not use the product before performing
corrective maintenance.
Never incorporate equipment or accessories not approved by L-Acoustics.
Read all the related PRODUCT INFORMATION documents shipped with the products before
exploiting the system.
Do not store the product on an unstable cart, stand, tripod, bracket, or table.
Work with qualied personnel for rigging the system
Installation should only be carried out by qualied personnel that are familiar with the rigging techniques and
safety recommendations outlined in this manual.
Ensure personnel health and safety
During installation and set-up personnel must wear protective headgear and footwear at all times. Under no
circumstances is personnel allowed to climb on a loudspeaker assembly.
Respect the Working Load Limit (WLL) of third party equipment.
L-Acoustics is not responsible for any rigging equipment and accessories provided by third party manufacturers.
Verify that the Working Load Limit (WLL) of the suspension points, chain hoists and all additional hardware
rigging accessories is respected.
Respect the maximum congurations and the recommended safety precautions.
For safety issue, respect the maximum congurations outlined in this manual. To check the conformity of
any conguration in regards with the safety precautions recommended by L-Acoustics, model the system in
Soundvision and refer to the warnings in Mechanical Data section.
Be cautious when ying a loudspeaker conguration.
Always verify that no one is standing underneath the loudspeaker array when it is being raised. As the array
is being raised, check each individual element to make sure that it is securely fastened to the adjacent element.
Never leave the array unattended during the installation process.
As a general rule, L-Acoustics recommends the use of safety slings at all times.
Be cautious when ground-stacking a loudspeaker array.
Do not stack the loudspeaker array on unstable ground or surface. If the array is stacked on a structure, platform,
or stage, always check that the latter can support the total weight of the array.
As a general rule, L-Acoustics recommends the use of safety straps at all times.
Risk of falling objects
Verify that no unattached items remain on the array.
Risk of tipping
Remove all rigging accessories before transporting an array.
Take into account the wind effects on dynamic load.
When a loudspeaker assembly is deployed in an open air environment, wind can produce dynamic stress to the
rigging components and suspension points.
If the wind force exceeds 6 bft (Beaufort scale), lower down and/or secure the loudspeaker array.
4 KARADOWNK2 rigging manual (EN) version 1.1
Welcome
Intended use
This system is intended for use by trained personnel for professional applications.
Read the USER MANUAL before operating the system.
Use the loudspeaker system components described in the user manual and follow the operating instructions.
Do not expose the product to extreme conditions.
Do not expose the product to rain or sea spray.
Do not expose the product to moisture (mist, steam, humidity, condensation…) or excessive heat (direct sun,
radiator…) for a long period of time.
Symbols
The following symbols are used in this document:
This symbol indicates a potential risk of harm to an individual or damage to the product.
It can also notify the user about instructions that must be strictly followed to ensure safe installation or operation of
the product.
This symbol noties the user about instructions that must be strictly followed to ensure proper installation or
operation of the product.
This symbol noties the user about complementary information or optional instructions.
Welcome
Thank you for purchasing the L-Acoustics KARADOWNK2.
This document contains essential information on rigging the system properly.
As part of a continuous evolution of techniques and standards, L-Acoustics reserves the right to
change the specications of its products and the content of its document without prior notice. Please
check www.l-acoustics.com on a regular basis to download the latest document and software updates.
KARADOWNK2 rigging manual (EN) version 1.1 5
Mechanical safety
Mechanical safety
Flown congurations
The KARADOWNK2 rigging system complies with 2006/42/EC: Machinery Directive. It has been designed following
the guidelines of BGV-C1.
2006/42/EC: Machinery Directive species a safety factor of 4 against the rupture. The own deployments described in
this manual achieve a safety factor of 4.
Refer to Soundvision for the safety factor of a specic deployment.
The maximum limit gives the maximum number of elements for which the safety factor can be compliant with the
2006/42/EC: Machinery Directive, when the other deployment parameters provide the best mechanical conditions.
For mixed arrays refer to your Soundvision model.
Always refer to Soundvision for the safety factor of a mixed array.
When ying a K2 array with a Kara downll, the mechanical safety of all system elements must be considered.
The indicated maximum limit applies to the KARADOWNK2 only.
Do not implement a pullback on a K2 array with a Kara downll.
K2 and Kara
conguration rigging accessory maximum limit
Vertical array with downll KARADOWNK2 6 Kara
Assessing mechanical safety
Mechanical safety of the rigging system
Before any installation, always model the system in Soundvision and check the Mechanical Data section for
any stress warning or stability warning.
In order to assess the actual safety of any array conguration before implementation, refer to the following warnings:
Rated working load limit (WLL) is not enough
The rated WLL is an indication of the element resistance to tensile stress. For complex mechanical systems such as
loudspeaker arrays, WLLs cannot be used per se to determine the maximum number of enclosures within an array
or to assess the safety of a specic array conguration.
Mechanical modeling with Soundvision
The working load applied to each linking point, along with the corresponding safety factor, will depend on
numerous variables linked to the composition of the array (type and number of enclosures, splay angles) and the
implementation of the ying or stacking structure (number and location of ying points, site angle). This cannot be
determined without the complex mechanical modeling and calculation offered by Soundvision.
Assessing the safety with Soundvision
The overall safety factor of a specic mechanical conguration always corresponds to the lowest safety factor
among all the linking points. Always model the system conguration with the Soundvision software and check the
Mechanical Data section to identify the weakest link and its corresponding working load. By default, a stress
warning will appear when the mechanical safety goes beyond the recommended safety level.
Safety of ground-stacked arrays in Soundvision
For ground-stacked arrays, a distinct stability warning is implemented in Soundvision. It indicates a tipping hazard
when the array is not secured to the ground, stage or platform. It is the user's responsibility to secure the array
and to ignore the warning.
Additional safety for own arrays
When ying an array, use available holes to implement a secondary safety.
6 KARADOWNK2 rigging manual (EN) version 1.1
Rigging system description
Considerations must be given to unusual conditions
Soundvision calculations are based on usual environmental conditions. A higher safety factor is recommended
with factors such as extreme high or low temperatures, strong wind, prolonged exposition to salt water, etc.
Always consult a rigging specialist to adopt safety practices adapted to such a situation.
Rigging system description
KARADOWNK2
KARADOWNK2 is a rigging interface for Kara under a K2 array.
The four tabs on the top are compatible with the K2 rigging system.
The four slits tted with ball-locking pins accommodate the Kara rigging arms.
slit and ball-locking pin (x4)
tab (x4)
KARADOWNK2 rigging manual (EN) version 1.1 7
Rigging a Kara downll array under a K2 array
Rigging a Kara downll array under a K2 array
Type of deployment own array
Rigging accessories KARADOWNK2
Min number of operators 2
Assembly
About this task
Reference rigging manuals
This procedure is complementary to the rigging instructions available in the main system rigging manuals.
Refer to the K2 rigging manual and the Kara rigging manual for more details.
Prerequisite
• Prepare and raise a K2 array.
• Prepare an array of three Kara with 0° inter-enclosure
angles.
• Position the Kara array under the K2 array.
Make sure the latches on the bottom K2 are in storage position.
Procedure
1. Take out the four rigging arms on the top Kara enclosure.
a) Lock the front rigging arms in linking position.
8 KARADOWNK2 rigging manual (EN) version 1.1
Rigging a Kara downll array under a K2 array
b) Slide up the rear rigging arms and select the same inter-element angle, from 0° to 10°.
2. Secure a KARADOWNK2 on top of the Kara array.
Position the higher ledge at the rear.
Secure the Kara rigging arms inside the slits with the ball-locking pins.
x4
3. Lower the K2 array as close as possible to the assembly without resting on it.
KARADOWNK2 rigging manual (EN) version 1.1 9
Rigging a Kara downll array under a K2 array
4. Disconnect the rear rigging between the two top Kara enclosures.
5. Connect KARADOWNK2 to the bottom of the K2 array.
Risk of crushing injury.
Keep ngers away from the contact area between the ledge and the cabinet.
Risk of cable damage.
Disconnect any cable from the K2 bottom connector.
a) Rotate the top Kara upwards and secure the rear KARADOWNK2 tabs to the K2 rigging.
10 KARADOWNK2 rigging manual (EN) version 1.1
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