Luxinar SR AOM Series User manual

USER MANUAL SR AOM series
Sealed CO2 laser sources with integrated AOM

© 2021 Luxinar Ltd. All rights reserved.
Revision history
1 10/03/2021 — Update to XML format, reference CR 651476. Includes changes relating to CR 651325 and CR 651481.
This manual is copyrighted with all rights reserved. Under copyright laws, this manual may not be copied in
whole or part or reproduced in any other media without the express permission of Luxinar Ltd. Permitted
copies must carry the same proprietary and copyright notices as were affixed to the original. Under law,
copying includes translation into another language.
Please note that while every effort has been made to ensure that the data given in this document is accurate,
the information, figures, illustrations, tables, specifications and schematics contained herein are subject to
change without notice. Contact Luxinar Aftersales to verify that you have the latest version of this manual.

Aftersales contact details
Luxinar Ltd
Meadow Road
Bridgehead Business Park
Kingston upon Hull
HU13 0DG
U.K.
Tel.: [phone]
www.luxinar.com
For Aftersales Service, contact: [email protected]
For Parts, contact: [email protected]
Luxinar GmbH (Germany)
Röntgenstrasse 6
21465 Reinbek
Germany
Tel.: [phone]
www.luxinar.com/de
Luxinar Ltd (Italy branch office)
Via Pavia 11/B
10098 Rivoli
Torino
Italy
Tel.: [phone]
www.luxinar.com/it
Luxinar Ltd (Korea branch office)
#409, A-dong (Bundang Suji U-Tower)
767, Sinsu-ro, Suji-gu, Yongin-si, Gyeonggi-do
Republic of Korea 16827
Tel.: [phone]
www.luxinar.com/ko
Luxinar Laser Technology (Shanghai) Co., Ltd (China)
Room 02, 5th Floor, 8# Jiafeng Road
Shanghai Pilot Free Trade Zone
Shanghai, China
200131
Tel.: [phone]
www.luxinar.com/zh-CN
Luxinar Inc (USA)
51047 Celeste Dr
Shelby Township
MI 48315
USA
Tel.: [phone]
www.luxinar.com
Warranty shipments, returns and adjustments
Warranty claims must be made promptly and must be received by Luxinar during the applicable warranty
period.

If it becomes necessary to return a product for repair and/or adjustment, authorisation from Luxinar for the
return and instructions as to how and where these products should be shipped must be obtained from
Luxinar Aftersales.
Service and repair
Servicing or calibration of the system can only be carried out by trained Luxinar service engineers or
customers who have undertaken and passed a Luxinar approved service training course. Details of training
courses and servicing can be obtained from the local Luxinar Aftersales address.

Table of contents
Preface
Audience
Other publications
How to use this manual
Admonitions
Connector labels and signal names
1. Safety........................................................................................................................................................... 1
1.1. General safety information................................................................................................................. 1
1.2. Laser radiation safety standards......................................................................................................... 1
1.3. Equipment safety standards................................................................................................................2
1.4. Intended use for the laser equipment................................................................................................ 2
1.5. Radiation hazards for CO2 lasers......................................................................................................... 3
1.5.1. Eye protection.............................................................................................................................. 3
1.5.2. Skin protection............................................................................................................................. 4
1.6. Other hazards...................................................................................................................................... 4
1.6.1. Airborne noise emissions............................................................................................................. 4
1.6.2. Protection against fire.................................................................................................................. 4
1.6.3. Fume and vapour hazard..............................................................................................................5
1.6.4. Electrical hazards..........................................................................................................................5
1.7. Recommended administrative precautions........................................................................................ 5
1.8. Training................................................................................................................................................6
1.9. Safety precautions...............................................................................................................................6
1.9.1. Laser radiation emission warning device..................................................................................... 6
1.9.2. Safety interlocks........................................................................................................................... 6
1.9.3. Safety shutter............................................................................................................................... 6
1.10. Additional system integrator safety precautions.............................................................................. 6
1.10.1. Emergency stop (E-stop) switch................................................................................................. 6
1.10.2. Power on/off key switch............................................................................................................ 6
1.10.3. Manual restart............................................................................................................................6
1.11. Safety warning labels........................................................................................................................ 7
1.12. Label locations...................................................................................................................................7
1.13. Labels................................................................................................................................................ 8
1.14. Maximum Permissible Exposure and Nominal Ocular Hazard Distance........................................... 9
1.15. AOM module cover interlock.......................................................................................................... 10
1.16. Decommissioning and disposal....................................................................................................... 10
2. General Description................................................................................................................................... 11
2.1. Laser head......................................................................................................................................... 11
2.2. DC power supply (optional)...............................................................................................................11
2.3. Specifications.................................................................................................................................... 11
2.3.1. RF power supply......................................................................................................................... 11
2.3.2. Dimensions................................................................................................................................. 12
2.3.3. Weights...................................................................................................................................... 12
2.3.4. Cooling system........................................................................................................................... 12
2.3.5. Optics purge gas......................................................................................................................... 13
2.3.6. Environmental specifications..................................................................................................... 13
2.3.7. Performance...............................................................................................................................14
3. Operation...................................................................................................................................................15
3.1. Overview of operating modes........................................................................................................... 15
3.2. AOM operation overview.................................................................................................................. 15
3.3. General considerations before starting the laser..............................................................................15
3.4. Start-up............................................................................................................................................. 15
3.5. Shut-down......................................................................................................................................... 16
3.6. Emergency stop................................................................................................................................. 16
3.7. Pulse compensation.......................................................................................................................... 16
906-0227-00 REV 1 i Table of contents

4. Diagnostics and troubleshooting.............................................................................................................. 17
4.1. Status indicator diagnostics — PSU, interlocks & cooling................................................................. 17
4.2. Status indicator diagnostics — AOM module....................................................................................19
4.3. Status indicator diagnostics — Control modes................................................................................. 19
5. Routine maintenance................................................................................................................................ 21
5.1. General cleaning................................................................................................................................21
5.2. Pre-ioniser and AOM fuse replacement............................................................................................ 21
5.3. Cooling system contamination.......................................................................................................... 22
5.4. Frost protection.................................................................................................................................22
6. Installation................................................................................................................................................. 23
6.1. Installation procedure....................................................................................................................... 23
6.2. Unpacking, mounting and connections.............................................................................................24
6.2.1. Mechanical fixing........................................................................................................................24
6.2.2. Laser output aperture location.................................................................................................. 25
6.2.3. Coolant connections and pipework............................................................................................25
6.2.4. Beam delivery optics purge gas..................................................................................................29
6.2.5. Electrical power connections..................................................................................................... 29
6.2.6. Beam delivery.............................................................................................................................31
7. Transport and recommissioning............................................................................................................... 33
8. Interfacing..................................................................................................................................................35
8.1. Minimum interface connections for laser output............................................................................. 39
8.2. RS232 serial interface........................................................................................................................40
8.3. Open drain output usage.................................................................................................................. 40
8.4. Control signal timings........................................................................................................................ 41
8.5. Status indicators................................................................................................................................ 42
8.5.1. Shutter reset...............................................................................................................................43
Appendix A. Dimensional drawings.............................................................................................................. 45
Appendix B. Coolant requirements and additives........................................................................................47
B.1. Coolant quality.................................................................................................................................. 47
B.2. Suspended particle removal..............................................................................................................47
B.3. Corrosion and anti-bacterial inhibitor...............................................................................................47
Appendix C. Cooling system pressure drop curves.......................................................................................49
Appendix D. DC power supply options......................................................................................................... 51
D.1. SR 10 AOM single-phase DC power supply....................................................................................... 51
D.1.1. General description..................................................................................................................51
D.1.2. Specification.............................................................................................................................51
D.1.3. Installation............................................................................................................................... 52
D.1.4. Operation................................................................................................................................. 54
D.2. DC SR 25 single-phase DC power supply...........................................................................................56
D.2.1. General description..................................................................................................................56
D.2.2. Specification.............................................................................................................................56
D.2.3. Installation............................................................................................................................... 57
D.2.4. Operation................................................................................................................................. 60
D.3. DC SR 25 three-phase DC power supply........................................................................................... 61
D.3.1. General description..................................................................................................................61
D.3.2. Specification.............................................................................................................................61
D.3.3. Installation............................................................................................................................... 62
D.3.4. Operation................................................................................................................................. 65
Table of contents ii 906-0227-00 REV 1

Preface
Audience
This manual should be read by all personnel who install or operate SR AOM series lasers.
Important!
Read this manual carefully before operating the laser for the first time. Pay special attention to
the Safety chapter.
The SR AOM series is designed and sold for use in Original Equipment Manufacturer (OEM) systems and
is not to be used as a stand-alone laser. The OEM is responsible for compliance with all applicable safety
regulations.
Other publications
• Luxinar part number 906-0109-00; Serial interface specification
• Luxinar part number 906-0202-99; Chiller water temperature tables
How to use this manual
The following conventions are used in this manual.
Admonitions
The use of controls, replacement parts, adjustments, or procedures other than those specified within
this manual may result in exposure to any of these hazards.
• Laser hazards
• Electrical hazards
• Environmental hazards
• Mechanical hazards.
The degree of seriousness of the hazard is indicated by the use of the following signal words:
DANGER
Indicates an imminent hazard which, if not avoided, is extremely likely to result in death or serious
injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious
injury.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
injury. It is also used to alert the user against unsafe working practices and potential damage to the
equipment.
Connector labels and signal names
Connector labels and signal names are shown in bold serif font to aid identification.
For example; RF Enable, external interlock
906-0227-00 REV 1 iii Preface

Preface iv 906-0227-00 REV 1

1. Safety
1.1. General safety information
It is strongly recommended that any personnel who are involved with the installation, operation or
maintenance of this laser equipment should first read and fully understand the contents of this manual.
If there are any questions or doubts on any of the safety aspects of the equipment, then do not hesitate
to contact your nearest Luxinar Aftersales office or distributor for advice before proceeding.
The installation, operation, maintenance and repair of this laser equipment must only be carried out by
Luxinar service personnel or trained staff who have received correct instruction concerning the hazards
associated with this particular equipment.
Take extensive precautions to prevent exposure of laser radiation to the eye and skin from either direct
or reflected laser beams. In addition, precautions must be taken to prevent the hazards of fire, electrical
injury and pollution.
The information and precautions given in this chapter are extensive but may not be complete. The
system integrator is advised to supplement this information with information regarding current
technical and regulatory advances as they become available.
Important!
All safety critical instructions contained within this document are framed with a border and
identified by CAUTION, WARNING or DANGER depending on the severity of the risk involved. In
addition, the safety symbol indicates that care should be taken when working with or on the
laser equipment.
Strict compliance with the safety precautions set out and referred to in this manual and extreme care in
use are essential to minimise the chance of accidental damage to the equipment or personal injury.
Luxinar does not accept liability for any damage or injury howsoever caused or arising.
The symbol given below is also used on the equipment and indicates that the user should refer to the
OEM equipment operator’s manual for more information on the safe operation or installation of the
equipment.
1.2. Laser radiation safety standards
The European standard for the Radiation Safety of Laser Products is EN60825-1:2014. Luxinar lasers are
designated as Class 4 and as such, the user should appoint a Laser Safety Officer who should be familiar
with the content of EN60825-1:2014. Special attention is drawn to EN60825-1:2014 Part 14: User’s
guide. This laser product is designated solely for use as a component laser and therefore does not meet
all the requirements of EN60825-1:2014.
The United States guidelines for the manufacture and subsequent sale of laser equipment are governed
by the Centre for Devices and Radiological Health (CDRH). The laser safety requirements are covered in
sub-chapter J of the Radiation Standards, 21 CFR. This laser product is designated solely for use as a
component laser and therefore does not meet all the requirements of 21 CFR 1040.10.
It is the responsibility of the buyer of these components to ensure that the final system sold to an end
user complies with all the relevant laser safety requirements prior to the sale of that system. The buyer
is also required to provide a system report filing to CDRH before the system is shipped to an end user.
The labels shown in section 1.12 are fitted to the equipment in the locations specified and must not be
removed or defaced. Immediately replace any missing labels.
The average output power, peak power per pulse, the pulsed frequency, the wavelength of the radiation
and other specifications for the laser(s) covered by this manual can be found in section 2.3.
Luxinar laser control systems are designed in compliance with BS EN ISO 13849-1:2015 “Safety
requirements and guidance on the principles of design and integration of safety-related parts of control
systems”. The control system for the complete machine must also comply with this standard in order
906-0227-00 REV 1 1 1. Safety

that the machine is capable of operating as a Class 1 laser machine as defined in the EN60825-1 or 21
CFR 1040.10 laser safety standards.
SR AOM series lasers are provided as components to be integrated into OEM systems therefore overall
responsibility for compliance resides with the OEM manufacturer/installer of the final machine.
DANGER
Risk of injury to eyes and exposed skin
This is a Class 4 (Class IV) laser product. All precautions relevant to this class of laser product
should be strictly observed. Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation exposure. Strict compliance with
the safety precautions set out and referred to in this manual and extreme care in use are
essential to minimise the chance of accidental damage to the equipment or personal injury.
Luxinar does not accept liability for any damage or injury howsoever caused or arising.
1.3. Equipment safety standards
In addition to the laser safety standards detailed in section 1.2, Luxinar laser systems are manufactured
to the following additional safety standards:
1. 2014/35/EU Low voltage Directive and EN 61010-1:2010+A1:2109. This equipment is designed for
indoor use only, pollution degree 2 and overvoltage category II.
2. 2014/30/EU — Electro-Magnetic Compatibility Directive
3. EN61000-6-2:2019 — EMC immunity for industrial environments
4. EN 55011-2016+A11:2020 — EMC emissions for equipment that include RF generators Group 2
Class A.
5. BS EN ISO 13849-1:2015 — Safety requirements and guidance on the principles of design and
integration of safety-related parts of control systems.
1.4. Intended use for the laser equipment
The laser equipment described in this document is intended to be used for processing materials in an
industrial environment. The laser is a source of radiation and as such forms part of a laser processing
system. The intended use of the laser is therefore determined by the type of laser system into which it is
incorporated (e.g. cutting, welding, marking, surface working) as well as by the manufacturer’s
instructions.
This laser equipment is intended to be integrated into large scale industrial tools or equipment defined
to consist of a combination of equipment, systems or products, each of which is manufactured and
intended to be used only in fixed industrial applications.
Large scale industrial tools are currently based on the following criteria:
• Consist of a combination of equipment, systems, products and/or components (therefore not a
single discrete tool such as a small or medium scale lathe, milling machine or pillar drill).
• Be required to be fixed to operate safely or within specification.
• Be of large scale.
• Require professional installation.
• Only to be used in an industrial environment.
• Be built to perform a specific task.
1. Safety 2 906-0227-00 REV 1

Important!
The use of the laser equipment for applications other than that intended constitutes misuse and
the laser manufacturer, Luxinar Ltd, does not accept liability for any damage or injury howsoever
caused or arising.
In addition, Luxinar Ltd, does not accept liability for any damage or injury howsoever caused or
arising where the laser equipment has been modified without the prior written permission of
Luxinar Ltd.
If processing foodstuffs check local standards and requirements.
Before working on any material with a laser beam, ensure that all personnel are familiar with the
applicable safety precautions.
1.5. Radiation hazards for CO2 lasers
The wavelength of the output beam from a CO2 laser can be in the range 9µm to 12µm. This wavelength
range is invisible to the human eye and is in the infra-red part of the electromagnetic spectrum but
behaves in most other respects like visible light.
When focussed to a small spot, the beam is powerful enough to cut materials such as plastics and
metals, but it is potentially dangerous even without focusing. CO2 laser radiation can be absorbed by
many materials, such as water, biological tissue, glass and plastic.
CO2 laser radiation can be reflected from smooth metallic surfaces, even though they may be blackened.
CO2 laser radiation can be focused with lenses in order to be useful for cutting or marking applications.
Beyond the focal point the laser beam rapidly diverges, causing dissipation of the energy density or
intensity of the beam.
The laser aperture is clearly marked with a label, as shown in section 1.12.
Output beam characteristics for the laser are described in section 2.3.7.
1.5.1. Eye protection
If laser radiation enters the eye, even after reflection, it can burn the surface of the eye causing
permanent damage.
Because the CO2 laser beam is highly absorbed by water, the eye is at serious risk of injury and may
suffer irreversible damage and scarring as a result of direct or indirect exposure to the laser beam. The
severity of any injury depends on the beam size, the power level, the energy per pulse and the length of
exposure to the beam.
WARNING
Risk of eye damage
Permanent eye damage may result if laser radiation is allowed to enter the eye either directly or
by a reflective surface during procedures involving access to the laser output.
All personnel must wear protective goggles suitable for use with carbon dioxide lasers when the
laser is in a Class 4 operational state.
Personnel not wearing eye protection must be excluded from the area or room containing the
laser.
The following precautions are pertinent for protection from 9–12µm wavelength CO2 laser radiation:
1. As a precaution against accidental CO2 laser exposure to the output beam or its reflection, anyone
within the area should wear the appropriate protective goggles with side shields.
2. Contact lenses and reading glasses do not provide sufficient protection.
3. Never look directly into the CO2 laser light source or scattered laser light from reflective surfaces.
906-0227-00 REV 1 3 1. Safety

4. The working area should be suitably shielded and should incorporate a safety interlocked door. The
door interlock should be used to automatically disable the laser when the guard door is opened. In
addition, the machine control system should be designed or configured such that deliberate
operator intervention is required after the interlock circuit is remade when the guard door is
opened and then closed by the operator.
Note: The interlock circuit is re-made when the door is closed. However, the machine control system
must also be commanded to restart the laser.
1.5.2. Skin protection
If skin is exposed to CO2 laser radiation, it can burn and cut the flesh causing temporary or permanent
damage.
WARNING
Risk of injury to exposed skin
Do not allow exposed skin to come into contact with direct or indirect laser radiation.
The following precautions are pertinent for protection from 9–12µm wavelength CO2 laser radiation:
1. Do not place hands, or any other part of the body, in the beam path of the laser beam.
2. The laser beam should never be turned on without a target to absorb the energy.
• Metallic objects will reflect the CO2 laser beam.
• Blackened metallic objects may also be reflective to the laser beam. Objects that are brushed or
dimpled will diffuse the laser beam.
• Items that absorb the laser beam will become hot.
3. In the event of an emergency (laser or non-laser related), the laser should be shut down
immediately. Some criteria for emergency shutdown include the following:
• Faulty shutter operation
• Water leaking from the laser or its power supplies
• Fire
• Misuse of the laser
• Unauthorised use of the laser
1.6. Other hazards
1.6.1. Airborne noise emissions
Depending on the mode of operation, Luxinar CO2 lasers may generate airborne noise emissions higher
than those identified in 2006/42/EC section 1.7.
WARNING
Risk of damage to hearing
If the laser system is operating within the audio frequency range, it may be necessary for
personnel to use ear defenders as recommended by local or international safety standards.
1.6.2. Protection against fire
Combustible objects which are placed in the laser beam path can be set on fire. To prevent this:
1. Never operate the laser in the presence of flammable gases or liquids.
2. Never operate the laser in the presence of explosive materials.
1. Safety 4 906-0227-00 REV 1

3. Ensure the laser system is installed with the correct level of safety interlocking.
4. Ensure the laser beam is directed toward the intended target.
1.6.3. Fume and vapour hazard
Laser induced reactions can release hazardous particulate and gaseous matter. These by-products may
be poisonous. Before using the laser to work on any material, ensure that all the applicable safety
standards are being followed.
Some materials break down chemically when they are heated and these materials can emit hazardous
fumes in the form of gases or particulate matter e.g. poly vinyl chloride (PVC) and polycarbonate.
Standard materials handbooks or the manufacturer of the material should be contacted before
attempting to process such materials with a laser.
In addition, fume extraction is recommended for removing the smoke plume. Specialist filters can also
be used to filter the fume in the workplace. Filters must be cleaned and/or replaced in accordance with
safety regulations to prevent environmental pollution.
• Do not attempt to process a material with a laser beam unless the heating characteristics of the
material have been fully investigated and understood.
• Provide a method for safely shielding and extracting the fume produced by the laser process.
• When cutting plastics, filter the cutting vapours downwards.
1.6.4. Electrical hazards
Any installation, service or repair work must be undertaken by qualified Luxinar personnel or by skilled
engineers after consultation with the relevant local Luxinar Aftersales department. If in doubt contact
the Aftersales department at the phone number given at the beginning of this manual.
DANGER
Risk of electrical shock
Ensure that the laser is disconnected from the mains electrical supply before commencing work.
1. Do not remove the covers from the laser or its power supplies. Removing these covers will expose
hazardous voltages. In addition, removing internal covers from around the laser or its correction
optics may allow leakage of laser light.
2. The area around the laser and its power supplies should be kept dry.
3. Never operate the laser if there is any sign of leakage of water from the system. Call the local
Luxinar Aftersales department.
4. Do not operate the laser if the mains supply cable is faulty or damaged.
5. The laser should undergo routine inspection and maintenance according to Luxinar
recommendations, as detailed in Chapter 5.
1.7. Recommended administrative precautions
Typical requirements for administrative precautions are detailed within EN60825-1:2014 Part 14.
1. Ensure that operators are given regular safety training (at least once per year) and have read and
understood this manual.
2. Ensure that operators have a copy of this safety information for easy reference.
3. Observe all accident prevention regulations that are in force in the work place.
4. Attach the correct hazard warning plates and labels to the laser equipment.
5. Ensure that untrained or unauthorised personnel do not have access to the laser system.
6. Ensure that the laser designated area is properly marked out and labelled.
7. Remove combustible or flammable materials from the laser designated area.
8. Ensure that adequate fume extraction is in place to remove any toxic by-products caused by laser
processing. See section 1.6.3
906-0227-00 REV 1 5 1. Safety

9. Ensure that all objects which may accidentally reflect the laser beam are removed from the laser
designated area. This may include personal items such as jewellery and watches.
10. Always check the condition of the laser system before beginning any work. In particular, confirm
the correct operation and condition of any safety shutters, beam delivery devices and nozzle
systems.
1.8. Training
Training of installation, operator and maintenance personnel is mandatory. Luxinar, or its authorised
distributors, can provide training on the installation, operation and maintenance of this laser
equipment.
1.9. Safety precautions
The SR AOM series incorporates various safety features as required by EN60825-1:2014 and CDRH
radiation safety standards. The system integrator is required to utilise these functions within a full
system installation to meet these safety standards.
1.9.1. Laser radiation emission warning device
To comply with relevant safety standards, installations may require a laser radiation emission warning
device to be included. Please ensure the safety functions within a system installation meet these and
any other relevant local laser safety standards. The emission warning device fitted to the laser operates
at a wavelength that is visible when wearing most laser protection goggles suitable for the laser
wavelength.
1.9.2. Safety interlocks
No sections of the laser’s protective housing can be opened without special tools. The laser has no user
serviceable parts within the protective housing and does not contain any access panel with safety
interlocks within the meaning of EN60825-1:2014 section 6.3.
1.9.3. Safety shutter
A safety shutter can be incorporated into SR AOM series lasers. The shutter prevents accidental laser
emission. It blocks or dumps the laser output beam using a reflective mechanical blade. The shutter
assembly contains sensors for monitoring the Shutter Open and Shutter Closed positions. For
details of the inputs and outputs required to operate and monitor the shutter, refer to Chapter 8.
1.10. Additional system integrator safety precautions
In addition, the system integrator will also be required to add the following functions within a full
system installation to meet the CDRH, EN60825-1:2014, Machinery Directive 2006/42/EC (EN60204) and
NFPA 79 safety standards:
1.10.1. Emergency stop (E-stop) switch
It is recommended that the system integrator includes an emergency stop (E-stop) switch for the laser
to the machine control panel. This switch must be of the red mushroom type with force make/force
break contacts and approved to the relevant electrical standards.
1.10.2. Power on/off key switch
It is also recommended that the system integrator adds the facility for a power on/off key switch, such
that the system can be switched off and the key removed when the laser is not in operation.
1.10.3. Manual restart
It is a statutory requirement of 21 CFR 1040.10 and EN60825-1:2014 that the laser output should not be
restored automatically if the mains power fails or an interlock is broken and then reset. The system
integrator must provide for a manual restart mechanism under these circumstances.
1. Safety 6 906-0227-00 REV 1

1.11. Safety warning labels
In accordance with the requirements of EN60825-1:2014, appropriate warning labels are positioned in
specific locations on the system to indicate conditions under which the user could be exposed to laser
radiation. In addition, for systems supplied into the USA the product identification label carries a
statement on the requirements of 21 CFR 1040.10. Except for the laser warning symbol, which has no
written words, all labels are written in the language specified by the system integrator. Reproductions of
these labels and their positions are detailed in sections 1.12 and 1.13.
1.12. Label locations
A
B
C
D
E
F
G
Figure 1 - Location of safety labels - front view
H
Figure 2 - Location of safety labels - rear view
906-0227-00 REV 1 7 1. Safety

1.13. Labels
Figure 3 - Label A — Laser hazard
AVOID EXPOSURE VISIBLE &
INVISIBLE LASER RADIATION IS
EM ITTED FROM THE APERTURE
Figure 4 - Label B—Laser aperture
CAUTION LASER DIODE FITTED
(Wave le n gt h 625 -690 nm Out pu t
Po we r <4 mW) VISIBLE & INVISIBLE
LASER RADIATION DO NOT STARE
INTO THE BEAM OR VIEW
DIRECTLY WITH OP TICAL
INSTRUMENTS CLASS 3M LASER
PRODUCT EN60825-1: 20 14
Figure 5 - Label C — Class 3R laser diode fitted
Figure 6 - Label D — Electrical hazard
WARNING
Disconnect the mains supply
before removing this cover
Figure 7 - Label E — DC voltage warning
Table 1 - Label F — Class 4 laser
CAUTION INVISIBLE LASER RADIATION AVOID EYE OR SKIN
EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT EN60825-1:2014
WAVELENGTH: 9µm - 12µm
PEAK POWER (Maximum): 565W
AVERAGE POWER (Maximum): 380W
PULSE DURATION (Maximum):
Figure 8 - SR 10 AOM
CAUTION INVISIBLE LASER RADIATION AVOID EYE OR SKIN
EXPOSURE TO DIRECT OR SCATTERED RADIATION
CLASS 4 LASER PRODUCT EN60825-1:2014
WAVELENGTH: 9µm - 12µm
PEAK POWER (Maximum): 1800W
AVERAGE POWER (Maximum): 600W
PULSE DURATION (Maximum):
Figure 9 - SR 25 AOM
1. Safety 8 906-0227-00 REV 1

This product does not meet all the requirements of 21 CFR 1040.10
Made in the UK by Luxinar Ltd. Meadow Road,
Bridgehead Business Park, Kingston upon Hull, HU13 0DG
[phone] www.luxinar.com
PATENT/ Brevet déposé / brevettato: www.luxinar.com/patents
PN:
SN:
:
SN:
REV:
:
PN:
REV:
IP:
Imported into the EU by Luxinar GmbH, Röntgenstrasse 6, 21465 Reinbek, Germany
7
5
1
2
3
4
6
1Model number
2Part number
3Serial number
4Input
5Revision
6Weight
7IP rating
Figure 10 - Label G — Product identification and certification
CAUTION
CLASS 4 LASER RADIATION WHEN
OPEN AVOID EYE OR SKIN EXPOSURE
TO DIRECT OR SCATTERED RADIATION
Figure 11 - Label H — Non-interlocked panel
1.14. Maximum Permissible Exposure and Nominal Ocular Hazard Distance
The Maximum Permissible Exposure (MPE) is the level of radiation to which, under normal
circumstances, persons may be exposed without adverse effects. The MPEs represent the maximum
level to which the eye or skin can be exposed without consequential injury and are related to the
wavelength of the laser radiation, the pulse duration or exposure duration, and the tissue at risk.
The MPEs given in the following tables are informative and provided so that the integrator can calculate
the Nominal Ocular Hazard Distance (NOHD), perform a risk analysis and inform the user about the safe
usage of the product. However, exposure limits for the eye and the skin of employees in the work place
and the general public are in many countries specified in national laws. These legally-binding national
exposure limits might differ from the MPEs given in the tables below.
The NOHD is the distance from the output aperture beyond which the beam irradiance or radiant
exposure remains below the appropriate MPE. Importantly, the NOHD is dependent upon the beam
waist size and the divergence of the beam. Therefore, the NOHD is dependent upon the optical
components acting on the beam. The NOHDs given in the tables below are relevant only when the laser
is operated without external beam delivery attached. When beam delivery is attached it is the
responsibility of the integrator or end-user to recalculate the NOHDs. Further details of the safe use of
lasers are given with IEC/ TR 60824-14 "Safety of laser products – Part 14: A user’s guide."
SR 10 AOM
Wavelength (µm) 9.3
MPE (W/m²) 1000
NOHD (m) 325
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SR 25 AOM
Wavelength (µm) 9.3
MPE (W/m²) 1000
NOHD (m) 625
1.15. AOM module cover interlock
The AOM module has an interlock switch that opens to disable laser output when the cover is removed.
For maintenance purposes, the switch can be overridden by pulling out the switch plunger.
Important!
There are no user serviceable parts within the AOM module. The cover should only be removed
by trained Luxinar service personnel.
With the cover removed and the interlock overridden, full power laser emission is present within the
AOM module even if there is no laser emission at the output window and no demand signal is active.
DANGER
Laser radiation hazard
Hazardous laser radiation is present within the AOM module at all times when modulation is
active. Do not operate the laser with the AOM module cover removed.
1.16. Decommissioning and disposal
Dispose of the system according to appropriate local regulations.
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2. General Description
2.1. Laser head
Figure 12 - SR AOM laser head
SR AOM lasers comprise a laser tube, integrated RF power supply unit and an Acousto-Optic Modulator
(AOM) module packaged within a robust aluminium casing. The laser tube is RF-excited and has a
diffusion cooled sealed cavity. All have an excitation frequency of 81MHz and an expected tube lifetime
greater than 20000 hours. The AOM module provides laser output pulses with faster rise and fall times
(<1µs) than are available from standard SR series lasers. There are two models offering different output
powers.
•SR 10 AOM
75W peak power
•SR 25 AOM
150W peak power
2.2. DC power supply (optional)
Refer to Appendix D for details of Luxinar DC power supplies
2.3. Specifications
Note: This equipment is designed for overvoltage category II as defined within EN
61010-1:2010+A1:2019.
2.3.1. RF power supply
Table 2 - RF power supply characteristics
Model SR 10 AOM SR 25 AOM
DC input (1) 50VDC ± 1% @ Ipeak = 80A
Iavg = 54A
50VDC ± 1% @ Ipeak = 160A
Iavg = 106A
Maximum average power
requirement (2)
2.7kW 5.3kW
1. Luxinar recommends using a DC power supply with a maximum current output at least 20% higher than these values.
2. Luxinar recommends using a DC power supply with a maximum average power rating at least 20% higher than these values.
906-0227-00 REV 1 11 2. General Description

2.3.2. Dimensions
Table 3 - External dimensions (including RF power supply)
Model SR 10 AOM SR 25 AOM
Standard laser (LxWxH) (mm) 885x290x226 947x290x226
2.3.3. Weights
Note: All weights are approximate.
Table 4 - Weight (including RF power supply)
Model SR 10 AOM SR 25 AOM
Standard laser 47.1kg 50kg
2.3.4. Cooling system
SR AOM lasers require a temperature stabilised recirculating coolant circuit in order to operate
correctly.
The preferred coolant is deionised water or deionised water with anti-bacterial additive. See
Appendix B.
Important!
To prevent condensation on optical surfaces, the coolant temperature must be maintained
above the dew point.
The following look-up table defines minimum coolant temperatures (above the dew point) that avoid
condensation with respect to ambient temperature and relative humidity.
Table 5 - Minimum laser resonator coolant temperatures
Ambient temperature (°C)
20 25 30 35 40 45
Relative
humidity
45% 19 19 19 24 29
50% 19 19 20 25 30
55% 19 19 21 26
60% 19 19 22 27
65% 19 19 23 28
70% 19 19 24 29
75% 19 20 25 30
80% 19 21 26
85% 19 22 27
90% 19 23 28
95% 19 24 29
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