User manual - Pro Audio Centre
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1. 3 Audio sensitivity knob 4 Microphone AVUN KX 5 Power input GEOMETRIX 6 Mode function switch Equinox Geometrix Laser Safety Class 3B Laser Lighting Effect User Safety Guide ProLight Concepts Limited Important Warnings Class 3B Lasers have the potential to harm eyesight if viewed directly in the face and in many instances this may be the case even if viewed over longer distances of several tens of metres Therefore before using the laser product you should familiarise yourself with its operation and also the safety aspects that need to be considered Laser lighting effects are quite safe to watch if installed and used correctly and being aware of a few basic factors will help you to achieve this This guide has been prepared to help provide a basic backgrounder to the key safety aspects and is based on current UK health and safety guidance on the use of lasers for public displays Installation and Operation Notes 1 The laser should only be installed and operated by those that are aware of how to operate laser and what the various controls perform The keyswitch provided on the laser should help to prevent use by unintended people 2 The laser should be mounted in a suitable and secure position in the venue so that once in position it is unlikely to be affected by unintended movement 3 Prior to installation and operation of the laser the paths of the beams and effects should be considered particularly with respect2. if in doubt keep it above head height Being aware of the laser s hazard distance is useful to know Hazard Distances All display lasers have a characteristic known as the hazard distance for direct viewing NOHD This is distance at which the hazard of viewing the laser directly no longer presents a hazard i e at any point between the laser projector and the calculated hazard distance it may be hazardous to view the laser directly But viewing the laser directly from beyond the hazard distance is considered to be safe The worst case effect to look at directly is a static single beam because all the light energy is concentrated into one point The hazard distances for several different powers of typical Class 3B laser are shown in the table below to give an idea of the distances involved Laser Output Power 10mW 100mW 250mw 450mw Table 1 Static Beam Hazard Distances Note The values have been calculated assuming the characteristics of a typical laser lightshow device which has a beam spread of 2mradians Actual devices may differ in practice so this table should only be used as a guide Details of how to calculate laser hazard distances are detailed in the British Safety Stand ard and many laser safety text books It is also one of the topics usually covered in laser safety courses It can been seen that static laser beams can remain hazardous for considerable distances which is why projecting such effects into peoples fa
3. it is not straightforward to interpret Laser Safety Calculation Software has been developed to help ease the task of establishing laser effects exposure Laser Safety Officer The PD IEC TR 60825 14 2004 Laser Safety Guidance recommends that all establishments that use or businesses that work with Class 3B laser products should appoint a Laser Safety Officer LSO The Laser Safety Officer should be aware of the safety issues when using lasers and is responsible for overseeing how the laser is used In smaller businesses the LSO will probably also be the installer operator owner etc Diffraction vs Direct X Y Scanning Lasers Diffraction type lasers have become increasingly popular in recent years creating laser effects that split the beam into hundreds if not thousands of less powerful beamlets This type of effect is usually much safer to view directly than traditional scanned beam effects for the simple reason that as the beam is split into smaller beams the power in each beam is reduced With x y scanning systems even though it may look as if the power is being reduced by the movement the moment any beam crosses a person s face the full power of the beam may briefly enter someone s eye Caution should still be used with diffraction effects in particular ensuring that the brighter central beams are kept above head height Separation Distances Health and Safety guidance states that for supervised installations laser light above t
4. to how they will touch the audience If direct audience scanning is desired then the laser energy in the effects needs to be considered to decide if the effects are safe for direct viewing Introduction Laser lighting products are used to create some of the most vivid and striking visual effects and are often noted for how they seem to produce solid shapes that cut through the air and pick up highly defined swirling smoke patterns The light that is used to create these stunning effects is different from normal light and therefore several precautions need to taken when using lasers to ensure that the lighting effects are safe and enjoyable to view The optical power output from the kind of lasers used for lighting displays can be harmful if not properly setup or is misused But when used following the recommended health and safety guidelines laser lighting effects no more harmful than looking at any conventional lighting effect This guide has been put together to provide you with some background information about laser safety and guidance on the recommended health and safety requirements for using lasers in public places Although this guide covers the main points to consider when using laser effects users are advised to familiarise themselves with other guidance particularly that issued by the Health and Safety Executive HS G 95 The Radiation Safety Of Lasers Used For Display Purposes which is freely downloadable from the HSE website Attend
5. EQUIN X GEOMETRIX Order code EQLA35 User manual Equinox Geometrix Laser WARNING FOR YOUR OWN SAFETY PLEASE READ THIS USER MANUAL CAREFULLY BEFORE YOUR INITIAL START UP CAUTION Keep this equipment away from rain moisture and liquids SAFETY INSTRUCTIONS Every person involved with the installation operation amp maintenance of this equipment should Be competent Follow the instructions of this manual CAUTION TAKE CARE USING THIS EQUIPMENT HIGH VOLTAGE RISK OF ELECTRIC SHOCK Before your initial start up please make sure that there is no damage caused during transportation Should there be any consult your dealer and do not use the equipment To maintain the equipment in good working condition and to ensure safe operation it is necessary for the user to follow the safety instructions and warning notes written in this manual Please note that damages caused by user modifications to this equipment are not subject to warranty Equinox Geometrix Laser Safety IMPORTANT The manufacturer will not accept liability for any resulting damages caused by the non observance of this manual or any unauthorised modification to the equipment e Never let the power cable come into contact with other cables Handle the power cable and all mains voltage connections with particular caution Never remove warning or informative labels from the equipment e Do not open the equipment and d
6. Laser Safety Warning Labels 2 Key switch 3 Emissions Indicator 4 Remote Interlock Connector Summary of each features purpose The Class 3B laser projector should contain three Laser Safety Warning Labels the starburst symbol aperture label and the warning classification label The starburst is intended to show that the product is a laser product using the starburst symbol in the warning triangle The aperture label is located to indicate where the laser projector emits its beams The warning classification label states the class of the laser product the maximum output power and the wavelength s colours of the laser along with a warning Laser Radiation Avoid Exposure To The Beam The Keyswitch is provided to help limit the use of the laser projector to those that have key access Without the key inserted and in the on position the laser will not emit an output The idea behind laser products having key switches is that only those people that are aware of how to operate the laser safely should be given access to the keys The emissions indicator is intended to show when the laser is ready to produce a light output The Remote Interlock Connector will only allow the laser to function when the two pins are shorted together For lightshow use it is recommended by HS G 95 laser safety guidance laser effects can be overridden by a remote Emergency Stop switch The remote interlock connector provides a convenient way for such a sw
7. ces in not recommended Remember projecting these beams overhead is fine as long as they or any reflections are not hitting anybody When an effect such as a tunnel is projected the continual scanning reduces the time the eye is directly exposed to the laser energy These types of effect are less harmful to aim at the audience directly The table below shows the hazard distances of a stationary circular tunnel with a spread of 50 degrees and a scan rate of 20Hz to give an idea of how it is reduced Laser Output Power 10mW 30mW 100mW 250mW 450mW Table 2 Scanned Tunnel Hazard Distances Equinox Geometrix Laser Safety Further Laser Safety Information and References The Radiation Safety of Lasers used for Display Purposes HS G 95 HSE s guidance on the safe use of lasers for light shows Free download http www hse gov uk pubns books hsg95 htm Control of Artificial Optical Radiation at Work Regulations 2010 New UK law specific to the use of lasers Free download http www opsi gov uk si si2010 pdf uksi_20101140_en pdf A Non Binding Guide to the Artificial Optical Radiation Directive Pages 114 116 contain specific guidance on laser shows Free download http www hse gov uk radiation nonionising aor quide pdf BS EN 60825 1 2007 Safety of Laser Products Part 1 British Laser Product Safety Standard Equipment Classification and Requirements www bsigroup co uk PD IEC TR 60825 3 2008 Guidance for Laser Dis
8. he Maximum Permissible Exposure MPE should not be accessible to members of the audience It also recommends the area where the MPE may not be exceeded extends from 3m above and 2 5m laterally from any location in the venue where members of the public may gain access during the display The following diagrams illustrate this Equinox Geometrix Laser Safety Diagrams showing Separation Distances 3 metre height MPE must not be exceeded Side View showing the 3m vertical separation distance 25 metre Horizontal MPE must not be exceeded ERW MPE must not be exceeded 2 5 metre i Horizontal ee ol Public Access Balcony etc Side View showing the 2 5m horizontal separation distance Note The 3 metre height specified is not the height of the actual projector but it refers to the height of the laser effect Therefore having the laser projector positioned at 3m height and aimed directly down is not what the guidance is saying Equinox Geometrix Laser What types of effect are safe to scan directly at audiences Fast moving laser effects with evenly distributed scan patterns such as circular tunnels are generally safer than effects such as finger beams or effects with pronounced bright spots in them Diffraction grating type effects are typically safer to point towards an audience as long as the bright central spots are kept above head height The important thing is to not guess if an effect is safe or not and
9. ing one of the laser safety training courses listed at the end of this guide is also highly recommended Equinox Geometrix Laser Safety What is a laser A laser is device that produces a special kind of light that is different from normal light sources Laser light sources differ from normal light sources in that they can produce very intense beams of light that can remain parallel over long distances It is this high concentration of light that can sometimes make lasers harmful to look directly into What is a Class 3B Laser Any device that contains a laser has to be classified depending upon the amount of laser light that someone might be exposed to During design and manufacture of the product the manufacturer assigns the laser product to one of the various classes defined in the Laser Product Safety Standard BS EN 60825 1 2007 The classes range from the safest which is Class 1 through to the most hazardous which is Class 4 For example CD and DVD players contain lasers to read the disk and because they are normally inaccessible to people they are classified as a Class 1 laser products Laser Pointers output more accessible power than CD DVD players and are normally limited to being Class 2 devices While most laser lighting effects products are Class 3B and Class 4 laser products These two classes have the highest potential to cause harm because they emit the greatest light output This is of course desirable and necessar
10. itch to be easily added to the laser system to provide this control Audience Scanning Audience Scanning is the term commonly used to describe when laser effects are being directly aimed at the viewing audience This creates a very dramatic looking effect as people can touch the light and look down smoky tunnels But because the laser light can touch or scan past people s faces it also carries a risk that it could cause damage to people s eyesight if they are overexposed to the laser light Equinox Geometrix Laser Safety Maximum Permissible Exposure MPE The amount of laser light that a person can be exposed to without it causing harm to eyesight is known as the Maximum Permissible Exposure MPE or Exposure Limit Value ELV These levels are defined the in the British Laser Safety Standard BS EN 60826 1 2007 and more recently in the Laser H amp S regulations When people are exposed to laser light which is above the MPE it poses a risk of causing eye damage This could be of concern when the laser effects are viewed directly in the face or there is a chance that they could be How do know what the MPE is Knowing what the MPE and exposure level is for a given laser effect is quite a complex and involved process to establish For it is dependant on a whole number of conditions and variables that need to be taken into account The laser safety standard BS EN 60825 1 2007 contains the data required to calculate the safe levels but
11. n All light entering the eye gets focused onto the retina Normal light sources such as traditional light bulbs and regular lighting effects are normally not harmful to view Lasers differ in that they can get focused down to very small points on the retina that can literally burn holes on the back of the eye which can lead damage to eyesight This process can happen in less time than it takes for a person to blink There are no pain receptors on the retina so the person will be unaware of any damage taking place Damage caused to the retina is permanent and can vary from unnoticeable loss of vision through to severe loss of sight particularly if the damage occurs in the part of the retina that senses the central vision Are there any laws or licences relating to using Class 3B lasers There are no specific laser licences that anybody needs in order to own or operate a laser for lightshow use However there is specific guidance issued by the Health and Safety Executive in the form of a document called HS G 95 The Radiation Safety of Lasers Used for Display Purposes HS G 95 outlines a number of detailed points to consider when using lasers for lightshow purposes Furthermore since April 2010 new health and safety legislation was introduced in the UK that sets legal limits as to the amount of laser light a person may be exposed to in the workplace Class 3B lasers have the ability to exceed the safety limits The full title of the laser
12. o not modify the equipment e Do not connect this equipment to a dimmer pack e Do not switch the equipment on and off in short intervals as this will reduce the system s life e Only use the equipment indoors e Do not expose to flammable sources liquids or gases e Always disconnect the power from the mains when equipment is not in use or before cleaning Only handle the power cable by the plug Never pull out the plug by pulling the power cable e Make sure that the available voltage is between 220v 240v e Make sure that the power cable is never crimped or damaged Check the equipment and the power cable periodically e If the equipment is dropped or damaged disconnect the mains power supply immediately Have a qualified engineer inspect the equipment before operating again e If the equipment has been exposed to drastic temperature fluctuation e g after transportation do not switch it on immediately The arising condensation might damage the equipment Leave the equipment switched off until it has reached room temperature e If your product fails to function correctly discontinue use immediately Pack the unit securely preferably in the original packing material and return it to your Prolight dealer for service e Only use fuses of same type and rating e Repairs servicing and power connection must only be carried out by a qualified technician THIS UNIT CONTAINS NO USER SERVICEABLE PARTS e WARRANTY One year from date of
13. plays and Shows Issued by British Standards Institute Website www bsigroup co uk PD IEC TR 60825 14 2004 Laser Safety User Guide User Guide Issued by British Standards Institute Website www bsigroup co uk Health amp Safety Executive Website www hse gov uk Laser Information and Safety Advice Health Protection Agency Website www hpa org uk Laser Show Safety Information Website Website www lasershowsafety org Laser Safety Calculation Software Scanguard LVR Limited Website www lvrlimited com Laser Safety Training LVR Limited Laser Show Safety Training Website www lvrlimited com Health Protection Agency General Laser Safety Training Courses Website www hpa org uk Copyright Notice This document has been prepared for ProLight Concepts Limited by LVR Limited who retains the copyright of this Laser Safety Guide No part of this guide can be reproduced without the express written consent of LVR Limited
14. purchase OPERATING DETERMINATIONS If this equipment is operated in any other way than those described in this manual the product may suffer damage and the warranty becomes void Incorrect operation may lead to danger e g short circuit burns electric shocks lamp failure etc Do not endanger your own safety and the safety of others Incorrect installation or use can cause serious damage to people and property Equinox Geometrix Laser Technical specifications You should find inside the Laser carton the following items 1 Geometrix Laser 2 Power cable 3 User manual Technical Specifications Simple plug and play laser unit Laser diode 1 x 50mW Green 532nM 1 x 100mW Red 650nM DPSS laser diodes High speed scanner with extra wide scanning angle Operating modes 1 Sound Active 2 Auto run Power consumption 12W Power supply 240V 50Hz Dimensions 220 x 145 x 147mm Weight 1 5Kgs Fuse 2A Operation modes The Geometrix has two modes of operation as follows 1 Sound active mode To select sound active mode set the switch to SOUND on the rear of the unit Now you can use the sensitivity control to set the required sound level 2 Auto pattern mode To select auto mode set the switch to AUTO on the rear of the unit The unit will now run through all of its built in laser patterns Back view i Top view Identification 1 Key lock 2 Cooling fan
15. safety regulations is the Control of Artificial Optical Radiation at Work Regulations 2010 which also define the need for risk assessment of the exposure levels Most places of public entertainment operate under a Public Entertainments Licence which is issued by the Local Authority The entertainment licence requirements will normally need to have a specific provision covering the use of lasers at the venue where it is expected that the laser instal lation whether temporary or permanent is to operated in compliance with the HS G 95 laser safety guidance as part of the venue s Public Entertainment Licence conditions The use of lasers as any other equipment used for shows will also be covered by more general health and safety legislation such as the Health amp Safety at Work Act 1974 and the Management of Health and Safety at Work Regulations 1999 etc These regulations among other things state that you must ensure the safety of people present at the event where the laser is used and also that a suitable risk assessment regarding the use of laser must be carried out Equinox Geometrix Laser Safety Class 3B Laser Product Features Class 3B laser products are required to have several specific safety features as part of their design These features are laid out in the British Standard on Laser Product Safety BS EN 60825 1 2007 and are a requirement of the product meeting CE approvals The important ones are listed below 1
16. y for laser lighting effects A laser product that emits more than 5mW of light and less than 500mW is normally classified as a Class 3B laser product meaning it carries a risk of harming eyesight if viewed directly Are Class 3B Laser Lighting Effects safe to view Yes if used responsibly and in accordance with the relevant the guidance issued by the Health and Safety Executive In the simplest terms generally keeping the beams and effects above the audience will not present a hazard to those viewing the show or effects When you start to aim the laser effects down into the audience area is when it becomes harder to tell if the effects could cause harm With a Class 3B laser lighting effect the problem can arise if the beams or effects actually hit someone s face If in doubt keep the effects above the audience Equinox Geometrix Laser Safety What harm can a Class 3B Laser cause Class 3B laser devices can be harmful to eyesight if viewed directly i e that is the beam or effect strikes the face of a person The actual injury that a Class 3B laser can cause depends upon a number of factors including how long the laser beam enters the eye for the intensity of light and what part of the eye it actually gets focused onto The most susceptible part of the eye to receive damage from a laser is the internal back wall of the eyeball known as the retina It is this part of the eye that receives the light signals that are sent to brai
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