OROTIG EVO X Operator's Manual

if correctly and properly used. However, no engineering design can make this equipment safe if it is not used and maintained with due care and according to standards. This manual must be carefully and thoroughly read before performing any operation. Failure to follow the instructions and safety regulations can cause damage to the operator and to the equipment.

Identification .........................................................................................................................................................................................................................................................................................4 Safety information ........................................................................................................................................................................................ 5 General safety rules ..........................................................................................................................................................................................................................................................................5 Protections.............................................................................................................................................................................................................................................................................................7 Interlock contact.........................................................................................................................................................................................................................................................................7 Leather barrier.............................................................................................................................................................................................................................................................................7 Resonator shutter ......................................................................................................................................................................................................................................................................7 Infra-red microscope filter....................................................................................................................................................................................................................................................8 Welding chamber infra-red filter ......................................................................................................................................................................................................................................8 Emergency button.....................................................................................................................................................................................................................................................................8 Enabling key/PIN........................................................................................................................................................................................................................................................................8 Hazardous areas and residual risks .........................................................................................................................................................................................................................................8 General rules.................................................................................................................................................................................................................................................................................8 Before all use of the equipment........................................................................................................................................................................................................................................8 Transportation precautions..................................................................................................................................................................................................................................................8 Packaging precautions............................................................................................................................................................................................................................................................9 Installation ................................................................................................................................................................................................. 11 Transport ...............................................................................................................................................................................................................................................................................................11 Unpacking .............................................................................................................................................................................................................................................................................................11 Positioning ............................................................................................................................................................................................................................................................................................11 Preliminary checks............................................................................................................................................................................................................................................................................11 Electric connection..........................................................................................................................................................................................................................................................................12 Power supply tolerances......................................................................................................................................................................................................................................................12 Equipment specifications ............................................................................................................................................................................. 13 Technical specifications ................................................................................................................................................................................................................................................................13 Applied Standards and Directives:.................................................................................................................................................................................................................................13 Intended use.......................................................................................................................................................................................................................................................................................13 Non-declared uses..........................................................................................................................................................................................................................................................................13 Labels and safety devices:...........................................................................................................................................................................................................................................................14 Operator interface ...................................................................................................................................................................................... 16 Controls and signals.......................................................................................................................................................................................................................................................................16 Rear connections .............................................................................................................................................................................................................................................................................16 Use ............................................................................................................................................................................................................ 17 Recommendations ..........................................................................................................................................................................................................................................................................17 Positioning and ergonomics......................................................................................................................................................................................................................................................17 Microscope eye pieces .........................................................................................................................................................................................................................................................17 Turning on the equipment .........................................................................................................................................................................................................................................................17 Emergency stop................................................................................................................................................................................................................................................................................17 Using the LASER welder...............................................................................................................................................................................................................................................................17 Display ....................................................................................................................................................................................................... 18 Display Screens .................................................................................................................................................................................................................................................................................18 Operation of the accessories ...................................................................................................................................................................................................................................................24 Using the protection air/gas supplier..........................................................................................................................................................................................................................24 Handrail Wicket (OPTIONAL)...........................................................................................................................................................................................................................................24

Periodic inspections.......................................................................................................................................................................................................................................................................26 Checking the coolant....................................................................................................................................................................................................................................................................26 Removing the liquid ......................................................................................................................................................................................................................................................................26 Topping-up the liquid..................................................................................................................................................................................................................................................................26 Checking the filters ........................................................................................................................................................................................................................................................................27 Checking the rear filter ........................................................................................................................................................................................................................................................27 Checking the internal filter ................................................................................................................................................................................................................................................27 Checking the air vents and grid .....................................................................................................................................................................................................................................27 Replacing the focal lens protective glass slide...............................................................................................................................................................................................................28 Aligning the shot on the crosshair........................................................................................................................................................................................................................................29 Checking alignment...............................................................................................................................................................................................................................................................29 Correcting alignment............................................................................................................................................................................................................................................................29 Extraordinary maintenance .......................................................................................................................................................................................................................................................29 Recommendations .........................................................................................................................................................................................................................................................................29 Sanitisation ................................................................................................................................................................................................ 30 Diagnostics ................................................................................................................................................................................................. 31 Errors and Warnings ......................................................................................................................................................................................................................................................................31 Note: ......................................................................................................................................................................................................... 33

4 General information Manual distribution list: Shipper - Installer - User - Maintenance technician- Demolisher. Please carefully and thoroughly read this manual which contains important information on safe and efficient equipment operation. This manual is an integral part of the product and only accompanies the equipment to which it refers. This manual must be carefully preserved throughout the working life of the equipment so that it can be readily accessible and consulted. In case the used equipment is sold, it must be sold complete with this manual and its annexes. The manufacturer cannot be held liable for direct or indirect damages to persons, property or pets, due to equipment use in conditions other than those provided. The manufacturer reserves the right to make changes to this documentary material or the equipment to which it refers without prior notice. Safety pictograms: Danger indicates the occurrence of a condition or situation that might cause death or serious injury. Warning indicates the occurrence of a condition or situation that might cause moderate injuries. Note indicates that the text provides additional information, explanations or helpful tips. Identification Manufacturer: OROTIG S.p.A. Via XXV Aprile 47 37014 – Cavalcaselle di Castelnuovo del Garda Tel: +39 045 6400865, FAX +39 045 6401104 Email: [email protected] – web: www.orotig.com Equipment: E200125O E200225O E200125L E200225L The equipment data plate contains information on product identification and its electrical specifications.

5 Safety information General safety rules Touching live electrical components can cause fatal injuries or serious burns. Improper equipment installation or incorrect grounding may be hazardous. Do not touch live parts. Remove the power plug from the mains before installing or servicing the machine. Install this equipment properly and ground it in accordance with the operating instructions and in accordance with local regulations and standards. Always turn off the machine after use. Do not use weak, damaged, inadequate, or poorly connected cables. Be careful not to have cables near heat sources. Only use the equipment if in perfect condition. Always immediately repair or replace damaged parts. Do not open panels, repair or modify the equipment. These manoeuvres can lead to electric shock and fires. Do not operate the equipment except as described in the maintenance section. Always keep all the cover panels secured in their housings. Do not look at or touch the LASER beam. Class 4 LASER equipment. Uncontrolled reflections of the LASER beam may result in burning or, in the worst cases, irreparable damage to the eyes. • Never introduce mirrors or reflecting objects while the equipment is operating • Inspection of manufactured products inside the welding chamber should be exclusively through the viewing window located on the front of the equipment. • Accidental exposure of the eye to LASER radiation can cause cataracts and, in the worst cases, burn the retina. • Do not remove the hand introduction curtains for any reason whatsoever. • Do not stare nearby the curtains while the LASER is on. • Persons of small stature should not be near the hand introduction curtains when the equipment is in use. Operators are advised to protect hands by wearing appropriate UV protection gloves, which are suitable and approved by the regulations in force. Wear the protective goggles supplied. With the welding chamber open, or when the bottom of the chamber is removed, it is MANDATORY to wear the safety glasses provided, in order to prevent damage to the retina. Safety glasses must have an OD 7 optical density and an L9 protection level for pulsed LASERS with a wavelength of 1064 nm, in compliance with the relevant BS EN 207 standard. The LASER welder can be dangerous. Protect yourselves and others from possible serious injury or death. Keep out of the reach of children. Keep persons wearing pacemakers away, unless they are provided with specific medical consent. Welding, as with most jobs, involves risks. Welding is safe if the due precautions are taken. The welding risk is limited to handling the manufactured products inside the welding chamber. The process in itself is absolutely safe; in all cases, it is important that the equipment is operated by authorised personnel only. INSTALLATION, MAINTENANCE AND REPAIR SHOULD ONLY BE PERFORMED BY HIGHLY QUALIFIED PERSONNEL. Do not touch manufactured products during or immediately after welding. Recently welded manufactured products can be hot. Immediately stop operations in the event of an unexpected event. Stop the device immediately if a problem occurs or a burning smell is perceived, an abnormal noise is heard, abnormally hot parts are present or smoke is seen, etc. Electric shock or fire hazard. Contact OROTIG S.p.A. immediately.

6 The welding processes produce fumes and gases. Inhaling them can be hazardous to health. Keep the head away from the fumes. Do not inhale the fumes. Do not cover the vents on the equipment. Carefully read the instructions supplied concerning the various types of metals, detergents and protection gases. The equipment should ideally be installed in a large, specially dedicated room. If the room is small, ensure that it is sufficiently ventilated. The protection gases used for melting can gradually saturate the air causing discomfort or death. Do not weld in the proximity of areas used for degreasing, cleaning or spraying. The heat could react with the vapours, producing toxic and irritant gases. Make sure that the metals do not have impurities such to cause fumes or gases during melting. Envision the use of an auxiliary extractor system or, alternatively, the use of a face mask. LASER welding can cause fire or explosion. The sparks produced during welding can escape and cause fire or burns. It is prohibited to introduce inflammable gases and liquids into the welding chamber. Cylinders and objects containing highly flammable gases or liquids should be moved a safe distance away from the welding chamber. Fire warning, keep an extinguisher in the immediate vicinity. Do not use water to clean the equipment. Avoid using water near the equipment when operating. Do not place liquid containers over the equipment. Do not place the equipment in very humid environments (permissible relative humidity from 30% to 80%) or near heat sources or sources that produce moisture. Protective clothing should be worn. Wear protective clothing such as gloves, long-sleeved jackets, leather aprons, etc. Melted metal sparks can cause burns on the skin. Do not cover the LASER with blankets or fabrics. Do not cover running equipment with blankets or fabrics, which may overheat and burn. Perform periodic maintenance. Consult the relevant chapter and perform the maintenance recommended. If there is a problem, do not use the equipment; Consult the manual and contact technical support. The manufacturer cannot be held liable for direct or indirect damage to persons, property or pets, due to failure to comply with the safety regulations and the information contained in this documentation.

7 Protections All the safety measures that consist in the use of specific technical means (guards, safety devices) to protect persons from hazards that cannot be reasonably limited through design are considered as protections. Tampering with protections or any modification of the equipment can cause risks for the users and for other exposed persons. Interlock contact Description The interlock is a switch with normally closed contact, which must be positioned on the access door/s to the premises where the equipment is located. The electric connections of the switch are shown in the figure below. Purpose The interlock contact is used to prevent LASER operation where the safety standards envision the same. This safety device is mandatory if operating with the welding chamber open or when the welding chamber bottom is removed. A blind interlock connector is supplied for use of the equipment with welding chamber bottom inserted and in normal operating conditions. Operation When the contact opens, all normal equipment operations are blocked and a warning message is displayed on the screen, until the contact is restored. The male DE-9 connector (OME00192) with case (RS000080) is supplied with the equipment; cables and switches are not supplied. Leather barrier Description Several layers of strips of leather form a mobile and permanent barrier at the access aperture to the welding chamber, through which the operator can introduce his hands and the manufactured products to be welded. Purpose The set-up of this safety device is made necessary in order to prevent every possible leak of radiation from the welding chamber, prevent the exposure of the operator or persons nearby to the product flashes during the welding operations and prevent the easy leakage of any protection gases used. Operation The leather barrier, which blocks the passage of LASER radiation, can be easily replaced if most of the strips should be damaged through use, be bent, broken or cut. Resonator shutter Description This device consists of motor-driven flag and is located inside the LASER resonator system. The shutter intervenes by cutting off the LASER beam path within the resonator when the welder is in stand-by or in the event of an anomaly. Purpose This device prevents the generation of unwanted LASER radiation. Operation The shutter is activated when the power supply is turned on, before the equipment is activated. On activation, the shutter clears the LASER path, and the equipment is ready for normal operation. A microprocessor control checks that the shutter is disabled in a timely manner: any anomalies are indicated by a warning on the display. When the equipment is turned off, the shutdown procedure is performed, which closes the shutter; a check is then performed to ensure correct closure. Any anomalies will always be signalled on the display. Resonator shutter movements are detected by an infra-red sensor controlled by the movement of the motor shaft. The breakdown of this infra-red sensor is detected by the microprocessor, which puts the system in the alarm mode, preventing normal operation of the equipment and highlighting the anomaly with relevant wording on the display. The breakdown of the motor or its control driver is detected by the microprocessor by checking the ON/OFF movement implementation times of the flag and is highlighted on the display by relevant warnings.

8 Infra-red microscope filter Description This filter is a 1.064 nm optical glass that is opaque to LASER radiation. It appears light grey and transparent to our eyes. It is inside the microscope. Purpose This filter protects the operator's eyes from leaks of LASER radiation along the optical path of the microscope. Operation Since it is opaque at the wavelength of 1.064 nm, it prevents the passage of LASER radiation. Welding chamber infra-red filter Description This filter is a 1.064 nm optical glass that is opaque to LASER radiation. It appears transparent light green to our eyes in compliance with the BS EN 207 and BS EN 208 Standards classified as OD6 for protection 800-1090 DIR LB6. It constitutes the inspection window of the welding chamber and can be replaced if broken. Purpose This filter protects the operator's eyes from the LASER radiation during normal operation of the equipment and allows the manufactured products to be inspected in complete safety. Operation Since it is opaque at the wavelength of 1.064 nm, it prevents the passage of LASER radiation. Emergency button Description The emergency button is a red mushroom-shaped switch. It is positioned in a point of the equipment that is easy to access by the user. Purpose It stops the equipment immediately and must be used in the event of danger for the operator or equipment. Operation It removes the power supply to all electric/electronic parts of the equipment, switching it off immediately. Enabling key/PIN Description It is an enabling switch with key or, alternatively, an electronic PIN. Purpose To prevent operation of the equipment by unauthorised personnel. Operation Once the key has been turned or the PIN entered, the equipment starts, loading the internal circuits and enabling LASER emission. Hazardous areas and residual risks Hazardous Area is defined as any area within or near the equipment where a person is exposed to injury or health damage. There are some residual risks to the operator during certain equipment procedures. These risks can be eliminated by following the basic rules of work and behaviour or, more specifically, the procedures in this manual, adopting the personal protection equipment as indicated. Only trained personnel who have taken note of the safety instructions in this manual should install the equipment. General rules Before proceeding with the normal equipment use, we recommend you check that it is in good working order and check that its parts are not defective or worn. If necessary, carry out all necessary maintenance operations. • Pay attention to the risk of electric shock due to direct and indirect contact due to unexpected electrical failure. • Do not subject the equipment to violent impacts. • Do not expose the equipment to fire, welding sparks or extreme temperatures. • Do not allow the equipment to come into contact with corrosive substances. • Do not clean the equipment with water jets. Before all use of the equipment For correct use of the equipment, keep the following indications in mind: • Do not place objects in the slots in the equipment. • Always stop the equipment after each work session using the red key present on the display. Switch it off using the master switch only when it has stopped. • Perform the maintenance listed in the appropriate chapter. • If the LASER outlet nozzle is dirty, clean using a dry or slightly dampened cloth. If it is very dirty, use a neutral detergent such as alcohol. Never use thinners, petrol, etc. since they could discolour or alter the plastic parts. If the protective glass slide is damaged or excessively saturated with metal, replace it with a new one. • Operate very delicately on the touch-screen buttons with the fingers. The use of metal or plastic tips can damage the devices. Press the buttons one at a time; if multiple buttons are pressed simultaneously, the equipment may not respond properly or may even be damaged. Transportation precautions • During transport ensure that the equipment is properly supported at the lifting point. • Do not stand directly in the path of applied force and do not place personnel where loads are not suitably supported by mechanical devices.

9 • Risk or danger Foreseen PPE Hand or limb crushing Reinforced gloves, protective overalls Abrasion, cut Reinforced gloves Vision damage due to projection of material Protective goggles and overalls Packaging precautions Keep the original packaging for future use. • Always package the equipment for transport and/or handling. • The packaging consists of a cardboard box, a bottom and a top stratocell or expanded foam shield. • On receipt of the equipment, inspect the packing. In the event of faults, the customer must "accept with reserve" explaining the reason. • The customer must take care opening the box using an exacto-knife or other cutting tools.

10 • Package contents The following items are found in the package: GAS conveyor terminal LE100100 3 PCS Stainless steel plate 40x30, thickness 1.5 mm SLXA1001 4 PCS Protective glass slide BK7 AR @ 1064 nm D.40 2 mm Laser protection ATE00043 1 PCS LTS 2.5 and 3.0 hex wrenches GAL01000 and GAL01001 1 + 1 PCS Microscope eye pieces LEI00050 1 PCS Double-distilled water (available only in the winter period, in order to ship the equipment without water inside) FIR03002 5 L Funnel CEN00002 1 PCS RL 3/8 – 4 FOX adapter/s for air/argon MWW00240 - MWW00241e MWW00707 2 + 2 + 0.3m PCS Focusing support plate D2118539 1 PCS USB pendrive OME00337 1 PCS Blue Rilsan pipe d. 8x6 MWW00710 4 m Power cable LE000006 1 PCS Control pedal RIC00056 1 PCS Protection glass slide and glass slide-holder flange spacer ring D2109234 – LS000670 1 PCS Conical flange (normally already mounted in the machine) and 4 1/8 cylindrical male straight fitting D2103640 - MWW00126 1 PCS Interlock display key wiring CV000085 1 PCS Water drain quick coupling with pipe RS0000069 – COR00005 1 PCS + 50 cm Aisi 302 stainless steel wire d. 0.35 LXA10002 30 cm

• Storage • First installation • Relocation The machine is normally supplied complete with special packaging that allows for easy transport and handling. Crates should be handled with lifting vehicles with due care and strictly respecting the direction indicated on the packaging. Adopt normal and logical precautions to avoid bumps and tipping. When storing the welder in its packaging, do not tilt it, do not place it vertically and do not overturn it. If this is not the case, the coolant may leak. Protect equipment and any accessories from atmospheric agents. Water and moisture may oxidise some equipment parts, irreversibly damaging them. Unpacking After removing the packaging, make sure the machine is integral by checking that there are no visibly damaged parts. If in doubt DO NOT USE THE EQUIPMENT and contact the manufacturer. All packaging items should be kept for future use Positioning The equipment must be placed in a position and environment suited to its intended use (use in a laboratory protected from atmospheric agents); such placement must be carried out by qualified personnel. Permissible temperature from + 10° C to + 40° C Permissible relative humidity from 30% to 80% Maximum height at sea level 2000 m When positioning the LASER welder, keep in mind the following recommendations: • Position the equipment on a flat, stable surface that extends beyond the base of the machine in all directions, leaving more than 10 cm between the rear panel and the wall. • Guarantee sufficient space to allow for adequate ventilation. • Avoid places subject to abrupt changes in temperature and humidity. Keep the device away from direct sunlight, strong light or heat sources. • Do not position it near appliances that produce moisture, dust or heat (sanders, vaporisers, EDMs, ovens etc.). • Position it near an electrical outlet at a maximum distance of 1.5 metres. Preliminary checks The equipment is delivered with liquid in the cooling circuit. During the winter months, the liquid is not present inside the machinery. Rinsing is carried out with a 20% anti-freeze solution for the inspection. This situation is signalled by the presence of a container of liquid coolant (demineralised water) inside the package. In this case, it is necessary to: • Perform two rinses in the following manner: fill the tank half full with the liquid supplied (with the machine off), turn the machine on and access the "Test" menu and manually trigger the pump, wait one minute and then empty the tank. • Fill the tank completely with the machine off.

Make sure that the electrical outlet of the mains supply is the Schuko type; and is dimensioned on the basis of the characteristics of the equipment. Make sure there is an Earth connection. Apply a "D" type disconnect device upstream of the equipment connection cable with the mains. The disconnect device must be paired with an overcurrent protection device equipped with a circuit breaker (r.c.d.). The characteristics of such devices must be such as to meet the applicable regulations in the country of installation, and are dimensioned according to the equipment specifications. Power supply tolerances • Working voltage ± 10% of rated voltage. • Frequency: ± 1% of rated current in continuous mode ± 2% of rated current for a short period • Harmonic distortion for the sum of the second to fifth harmonics not over 10% of the total voltage rms among conductors. A further distortion is allowed for the sum of the harmonics from the sixth to thirtieth of 2% on the total voltage rms among conductors. • Voltage pulses should not be longer than 1.5ms with a rise/decay time between 500ms and 500μs and a peak value not exceeding 200% of the effective value of the rated power supply voltage. • The power supply must not be interrupted nor drop to zero for more than 3ms at any instant of the power wave. There must be no more than 1s between two subsequent breaks • The voltage dips must not exceed 20% of the power supply peak voltage for more than one cycle. There must be no more than 1s between two dips.

13 Equipment specifications Technical specifications Characteristics/Model EVO X EVO X LYNX Power supply Single-phase, 115-230 VAC±10%, 50/60Hz, 1.8kW Pulse power and duration 225 J at 25 mS Peak power 9 kW Average power 90 W Repetition frequency 40 Hz Welding spot size From 0.1 to 2 mm Stereo-microscope 45° with 10X magnification and crosshair (Leica) LYNX Pulse-Shaping Programs 5 Programmable memory cells 100 Tank capacity 4 L Weight 41 Kg 43 Kg Applied Standards and Directives: The equipment has been manufactured in compliance with the provisions of the European Community Low Voltage (LVD) 2014/35/EC, Electromagnetic Compatibility (EMC) 2014/30/EC and RoHS 2015/863/EC Directives and the following reference Standards: BS EN 60825-1 Safety of LASER products Part 1: Equipment classification and requirements BS EN 61326-1 Electrical equipment for measurement, control and laboratory use. EMC requirements. BS EN 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. Intended use Use the equipment to weld specific metal alloys. Only the following alloys can be used: • Gold • Silver • Platinum • Palladium • Titanium • Steel • Cobalt Chrome (CrCo) The metals and alloys listed above must not contain any of the metals indicated among those in the "Non-declared uses”. The protection gas recommended for the welding procedures Argon. Only use original Orotig S.p.A. parts and consumables. For technical assistance, contact Orotig S.p.A. Once the consumables have worn out, they must be replaced. Follow all of the prescriptions and the safety standards indicated in this manual. Non-declared uses Do not modify the equipment. Do not weld metals or alloys that include one of the following materials: Beryllium, Uranium, Plutonium, Cadmium, Magnesium, Sodium, Mercury, Potassium, Lead, Arsenic.

14 Do not use toxic or inflammable gases such as: Hydrogen, Oxygen, Fluorine, Chlorine, every type of hydrocarbon gas, any mixture of Hydrogen and Nitrogen. Do not use Nitrogen during welding. Do not put inflammable material along the LASER beam path. Don not use toxic materials or materials that emit explosive gases. Do not stare at the LASER beam without protective eye wear. Do not leave clothing of any kind along the LASER beam path. Do not introduce any living or dead organisms into the LASER beam. Do not use the LASER welder to heat food. Do not use the LASER welder to dry clothes and materials in general. Labels and safety devices: 1. Emergency button, use only in the event of an emergency. If pressed, it disconnects the power supply network from the device. ETI00361 2. LASER aperture warning label (ETI00129): LASER APERTURE. This label indicates the LASER beam outlet point 3. LASER emission characteristics label (ETI00528): This label provides information about the emission characteristics of the laser beam, including: • The energy emitted (E) • The wavelength (λ) • The duration of the pulse (t) • The average power (P) Moreover, it states the reference standard for LASER product safety. 4. Laser device classification label (ETI00131): LASER RADIATION. AVOID EYE OR SKIN EXPOSURE TO DIRECT OR SCATTERED RADIATION. CLASS 4 LASER EQUIPMENT. This label indicates the dangers that the laser system could have if it is used incorrectly. In fact, the laser generator used in this equipment is the Class 4 energy level. 5. Data plate label: This label contains the machine construction data. 6. Label that indicates the type of liquid to use: ETI00276 This label indicates the use of deionised water only. 7. High voltage warning label ETI00130 2 1 3 4 5 7 6 8

15 8. UV light warning label ETI00519 The following devices are used on the equipment: • KG3 LASER radiation protection glass, under the microscope • Leather curtains for access to the welding chamber. • LASER radiation protective glass on inspection window • Emergency button • Remote block connector • Flashing indicator, on the display, when the device is ready to emit LASER radiation. • A PIN code can be set at will by the user to prevent involuntary use by unauthorised personnel.

16 Operator interface Controls and signals 1) Stereo microscope. 2) Inspection window with filter for LASER beams at 1064 nm. 3) Hands entrance. 4) Touch-screen display for setting welding parameters. 5) Liquid cooling system; do not cover the vent, leave at least 5 cm between the vent and the wall. 6) Rear connections (see “Rear Connections” paragraph) 7) Coolant level, for correct efficiency of the equipment: the level MUST always be at maximum mark. Use double- distilled water only for top-up/replacement. 8) Quick coupling for coolant drain pipe attachment. 9) Cooling water input. Rear connections 1) Power supply socket, with master switch. 7) USB pendrive port 2) Compressed air inlet. 8) HDMI connection 3) Protection GAS inlet with solenoid valve. 9) Connection for microphone and headsets 4) Control pedal. 5) Interlock remote connection (see paragraph) 6) USB port for microprocessor board updates (for exclusive use by SERVICE). WARNING! Always refer to the operating voltage indicated near to the power supply outlet. Check the electric conditions before connecting the equipment. 1 2 3 4 6 5 7 1 3 2 4 5 8 7 8 9 6 9

Recommendations Before proceeding with the normal equipment use, we recommend you check that it was correctly installed and in good working conditions. Check that its parts are not defective, damaged or worn; if necessary carry out all the necessary routine and extraordinary maintenance operations. Positioning and ergonomics Microscope eye pieces Remove the caps that protect the stereo microscope, insert the eyepieces and, once positioned in their seat, tighten the fixing screw. Keep the caps and eyepiece wrappers for future use. One of the eyepieces has a crosshair for sighting. Position it on the right tube of the stereo microscope. The diopter dial may be adjusted by rotating the dial clockwise or anti-clockwise depending on the type of correction required. Refer to the scale printed on each eyepiece. Safety glasses must have an OD 7 optical density and an L9 protection level for pulsed LASERS with a wavelength of 1064 nm, in compliance with the relevant BS EN 207 standard. Turning on the equipment Move the power supply switch located on the rear panel of the equipment to position I. Wait until the display shows the access screen. Introduce the password (default value “0000”). Press the Start button to start-up the laser and access the welding parameters. Set the desired parameters according to the metal to be welded. Use the control pedal to perform welding. Emergency stop The emergency button is used to stop the equipment immediately. This safety device has a locking function and therefore must be re-armed manually. Use this button only in the case of a hazard and not for normal shut down of the equipment. Using the LASER welder This section describes the use of the LASER welder and explains the menu present on the display.

Display Screens START SCREEN After having pressed the master switch, which is on the rear part of the machine (see page 16), the uploading screen will appear. Wait until the uploading bar is complete. UNLOCKING PIN Before accessing the program HOME page, the unlocking PIN is requested. Enter ”0000” as default pin. The access PIN can be changed in the settings. STAND-BY HOME PAGE The Home screen allows the machine to be started and the laser to be armed by holding the START button down. The settings and services icons are on the left. 1) Menu 2) Home 3) Welding Programs and Parameters 4) Settings. WORK HOME PAGE The is the main screen of the machine during the work phase. The Power, Time, Fre quency, Spot set points can be selected via touch-screen and via the rotary switch that is found inside the welding chamber. The settings for modification of the pulse wave form (Shape), the Chamber, the Pre/Post-Gas and the re covery/saving of programs, are only accessible via touch-screen. To disarm the LASER and go back to the STAND-BY screen, hold the STOP button down. 5) Power: The power of the LASER pulse can be set from 0.5kW to 6kW with steps of 0.1kW. 6) T ime: Duration of the LASER pulse can be set from 0.5ms to 25ms with steps of 0.1ms. 7) Fre quency: The frequency of the LASER pulse can be set from 0Hz (Single shot every time pedal is pressed) to 20Hz with steps of 1Hz. By holding the pedal down, the shot frequency will follow the value set. 8) Wave Form: LASER pulse wave form. 9) PRE /POST-Gas: PRE: the first time the pedal is pressed, the LASER is not emitted, just the Gas. POS T: the solenoid valve is opened emitting the Gas for the duration selected in the settings screen (see SETTINGS screen). 10) S pot: The diameter of the welding spot, which can be set from 0.1 mm up to 2.0 mm with steps of 0.1 mm. 11) C ame ra: Enabling of the camera to view the welding area. From the settings screen it is possible to set the automatic passage from the parameters screen to the camera after 5 seconds. 12) S ave: Possibility to save the parameters 13) S top: machine shut down and "Stand-by” Home screen display. 5 6 7 10 9 8 11 12 13 4 3 2 1

switch. This joystick allows the operator to move around the home parameters screen and select welding values by rotating left and right. Once a parameter is highlighted, push the rotary switch to open it and rotate the rotary to increase or decrease the value. Once set the desired value, push the joystick once again to fix the value and go back to main home level. Using the rotary switch it’s possible to work easily and faster keeping the hands inside the welding chamber without be forced to touch the display screen. SAVING PARAMETERS Once the desired parameters have been established, they can be saved using the "SAVE" key. This screen will appear, which can be used to name the program. By pressing the green tick icon, the program will be saved in the list. SETTINGS By selecting the SETTINGS icon, access is given to all the settings and general information as well as customisation of the machine. INFO The screen shows the FIRMWARE installed on the display and microprocessor board, the IP address to which the machine is connected and the number of shots carried out. SETTINGS This window allows access to the SERVICE menu (for authorised assistance only) or management of the access password, the automatic stand-by function and setting of the date and time. SETTINGS – SECURITY By activating the “Application lock” button, the request for the PIN on start-up of the equipment is introduced.

By pressing the “Change application password” button, it is possible to modify the PIN by introducing the old code and the new code desired. SETTINGS – UTILITY The automatic Stand-by function allows the laser to disarm if not used and go back to the HOME page after a period of time set by the user. SETTINGS – TIME & DATE The time, date and time zone can be modified manually, or that supplied by the network can be kept (if connected). NETWORK The equipment can be connected to WI-FI. This screen allows the method of connection to be selected, if wired, or WI-FI. NETWORK – WI-FI If WI-FI mode is selected, connect on this screen by introducing the password (if envisioned). MULTIMEDIA Music: Entering Music section, it will be possible to play tracks previously loaded inside the USB flash of the EVO X. USB must be plugged on the back side of the display slot. Video: After pressed Video section, customer can access to Orotig folder in which EVO X video training is available, inside Recorded section instead, all the video saved by the camera record feature. From here, customer can send and save the files on the USB connected on the back of the display.

The musical content of the USB pendrive can be selected. This is already divided into Tracks, Artists and Albums. MUSIC PLAYER SCREEN By dragging the drop-down menu on the left edge of the screen towards the centre, the music player will appear from where it is possible to select the tracks desired, which have been previously uploaded onto the USB pendrive. The player can be opened in any phase and work screen. HELP If there are problems in this window, all information is given on how to contact the construction headquarters and after-sales assistance department. LANGUAGES The language of use of the application can be modified. PARAM & STAT This screen shows information regarding the coolant (temperature and flow during work) and gives access to the rapid activation and adjustment buttons: PRE/POST-GAS: when PRE GAS is enabled, when the pedal is pressed for the first time, the solenoid valve will open with the outlet of gas/air without emission of the LASER. When the pedal is pressed for the second time, the LASER shot will also be emitted with the gas/air. PUMP TEST: when the machine is in stand-by, the pump is off. To activate water circulation in stand-by (e.g. at first installation, at the first complete loading of the tank) press the underlying button. The pump will activate (ON), making the water circulate without arming the laser and loading the condensers. Press the button again to switch the pump off.

work phase. The list will be empty on commissioning of the machine. Once the program has been selected, press "APPLY" to set it on the work screen. PRESET PROGRAMS: Orotig supplies pre-set welding programs for the material and type of work to apply. The desired program can be set using the grid available. Once the program has been selected, press "APPLY" to set it on the work screen. CAMERA By pressing camera icon, on top right corner of the frame, display will pass to video screen. Welding parameters modification, on the right side of the display, will always be available by using the rotary switch in the welding chamber. VIDEO FILES SAVE To record video session press on ”RECORD” red button in the bottom area. Pressing again the same button(this time will be green color) recording will be stopped and a name/saving windows will popped up on the screen. It will be possible to rename the file as the operator wish or giving the default name by pressing its button. EVO X will save the default name as serial number, date and time. MULTIMEDIA-VIDEO-RECORDED Once the file has been recorded, customer can replay it, send to the USB flash connected on the back of the display or delete it as shown at page 20. In this menù we find the saved file inside the display’s memory. By pointing the finger on the file name and slide it from left to right, file will be highlighted in green and by pressing ”Send to USB” button, it will be stored inside the USB flash memory. Sliding the finger from right to left, file will be highlighted in red and will be deleted from main memory. CAMERA SETTINGS In the camera screen, pressing top right gear icon, operator will enter the settings of the video camera.

setting up the video grab in all the desirable ways. To reset the parameters to original values, press the name of the setting and hold it for 3 seconds. CAMERA PARAMETERS Select this menù to modify shape, colors and position of the viewfinder.

Using the protection air/gas supplier All of the Laser Welders are supplied with: • A pipe to direct the protection air or gas (1). • An anodised aluminium conical glass slide-holder with quick coupling for the gas/air pipe (2). • A glass slide-holder flange without dispenser (3). It is possible to use one system or the other for the supply of the protection gas or cooling air. The outlet of the gas/air is controlled by a solenoid valve, which is activated by pressing the pedal if the "GAS" parameter present in the work menu has a value set different to 0. (See "Work Menu" paragraph). The maximum inlet pressure is 5 Bar. Over-pressure can damage the control solenoid valve. Figure 1 – Example of use of the glass slide-holder with the cone-holder This configuration is recommended to weld titanium, Cobalt Chrome and steel. The pressure advised with the use of protective gas (Argon) is 0.1/0.2 bar. Use the relevant transparent cone inserted into the cone-holder to convey the flow into the welding point, as shown in figure 1 Figure 2 – Example of use of the glass slide-holder without dispenser This configuration is recommended for welding Silver or Gold objects. It is advised to connect compressed air (maximum 4 bar) in order to cool the metal during prolonged welding phases. (See figure 1 and 2). Handrail Door (OPTIONAL) EVO X can be modified adding an handrail door with a chamber leaf (LAC10017) instead of the default protective tents. The side holes allow the operator to introduce the hands comfortably, ensuring enviroment protection from LASER emission. 1 2 3 1 1

of the door so it will be easy to access the welding chamber. When middle door is closed machine works normally, when the door is opened instead, EVO X stops, sending WARNING N°15 message and protecting the room from possible LASER emission. Once door is closed, WARNING state will be restored after one second and operator can go back to normal work condition. Machine must be START again after the WARNING appears. 2

Every maintenance operation, even small, relative to the Laser Welder and electric plant, requires the intervention of qualified personnel. Only original spare parts can be used. Using non-original spare parts exempts the manufacturer from any liability. Periodic inspections Check the integrity of the LASER radiation safety glass on the KG3 inspection window and the leather curtains for hand access to the welding chamber daily; if they need replacement, contact the manufacturer. Use of the equipment with broken glass or without the curtains is DANGEROUS and can damage health. Check the status and integrity of the safety labels and the data plate every six months. Contact the manufacturer if they are discoloured or illegible. Checking the coolant The machine has a liquid coolant system (double-distilled water). The liquid must be replaced at least once every 12 months, to prevent the formation of alga and/or lime scale. Removing the liquid Remove the upper cap on the tank. Position the drain container under the manifold, insert the quick coupling in the relative seat and wait for the tank to empty completely. Topping-up the liquid Remove the cap from the tank positioned in the rear part of the machine. Introduce the funnel into the relevant compartment and pour the double-distilled water in until the maximum level, indicated by the label on the inspection side, is reached. A float is present inside the tank, which indicates the level of the liquid. Therefore, during top-up of the first loading of the tank, pour a litre of water at a time, and wait for the float to settle at the correct level, until the maximum capacity (4 l) of the tank is reached. WARNING! Do not use the equipment without or with only a small amount of water inside the tank.

Checking the rear filter There is a removable metal mesh filter in the rear lower part of the machine, which must be cleaned every 3 months. To do this, loosen the clamping screws, slide the grid out, blow the filter and vacuum the internal seat. WARNING! Leave at least 10 cm around the machine to promote correct ventilation and sanitisation by the UV lights. Checking the internal filter Loosen the 4 red pawls shown in the photo and remove the grid. Clean by blowing with compressed air and vacuum the internal part where the fumes extractor fan is found. Failure to clean this filter can compromise operations and damage the equipment. Checking the air vents and grid Periodically vacuum the lateral air vents on the hood and the cooling fan grid. WARNING! Lack of maintenance can compromise operation of the equipment and damage it.

Check the status of the glass slide inside the welding chamber at least once a month. To remove the glass slide support, loosen the 2 brass pawls indicated in the photo. If the glass slide is marked by sprays of metal, is scratched, cracked or broken, replace it with a new one (Code ATE00043). Glass slide support with gas conveyor When using the standard glass slide support, the blue gas pipe must be pushed inside the machine for a few centimetres, in a way that the laser does not hit the pipe. Standard glass slide support WARNING! If the glass slide is very dirty, the power of the equipment may be reduced by up to 60% with respect to normal performance. If the glass slide is damaged or broken, there can be serious consequences for the focal lens positioned above it. Lack of maintenance of the filters can compromise equipment performance. Do not cover the vents with cloths or other materials. Leave a space of at least 10 cm between the vents and the walls. The efficiency of the Laser Welder could be compromised.

WARNING! Inspect the inside of the welding chamber only through the relevant window. Always keep the hands away from the path of the LASER beam. When the welding spot does not hit the centre of the crosshair, it can be corrected as described below: Checking alignment 1. Set the following parameters 1.0 KW, time 1.0 mS, frequency 0 Hz and minimum SPOT size. 2. Position the steel sheet, supplied in the accessories kit, on the focusing support (D2116466) and fire a shot. 3. Check the position of the shot with respect to the crosshair; if the spot intersects the crosshair in the centre, alignment is not required. Correcting alignment Take great care to avoid inadvertently activating LASER emission when performing realignment operations. With the equipment in stand-by, locate the aluminium pipe latch. At the latch end run, find the screws for adjustment of the shot position. This screw is positioned by the manufacturer. Using the 3 mm Allen key supplied, operate on screws 1 and 2. • Moving screw 1 shifts the welding point on the vertical axis (by tightening it moves upwards, by loosening it moves downwards). • Moving screw 2 shifts the welding point on the horizontal axis (by tightening it moves to the right, by loosening it moves to the left). Use small movements, check and continue to operate until the shot coincides perfectly with the centre of the crosshair. The alignment screws have aluminium guides to make them easier to identify. Extraordinary maintenance Extraordinary maintenance is envisioned only following an anomaly or a large loss of power. Consult the Diagnostics chapter for additional information Extraordinary maintenance may only be carried out by OROTIG S.p.A. personnel or authorised by the same. Recommendations For a good Laser Welder efficiency, we recommend: • Installation in an environment not too hot and away from heat sources; the higher the ambient temperature, the lower the efficiency of the cooling circuit/heat exchanger. • Keeping it away from equipment that produces moisture or dust, such as sandblasters, vaporisers, and so on. • Following the indications in the manual, reading the safety and maintenance paragraphs. • Only use the original spare parts listed in this manual. • Use only demineralised water as a coolant. Using water or liquids other than the indicated one can compromise operations. • Do not remove the safety devices. 1 2

Thanks to this integrated device, the air present in the work environment is sucked up by the laser and undergoes strong decontamination; it is thus possible to re-introduce it healthy and purified, thanks to the combined irradiation with UVC 210/280 nm light and advanced filtration. When the I.U.V.A.P. SYSTEM is deactivated ”OFF”, the machine and the extraction system operate normally and the UVC sanitising light is off. By pressing the button and setting I.U.V.A.P. SYSTEM at ”ON” the UVC lights switch on, thus allowing sanitisation of the environment via normal operation of the equipment fan. This function can be activated both in ”STANDBY” and in ”START” modes. By pressing the button again, the ”PULSED” function is set, which can only be activated when the machine is in ”STANDBY”. During this operation, the fan extracts periodically following two work speeds. In this way, even if the LASER is not used, the environment is sanitised allowing re-circulation of the air.

If there is a problem on the machinery, which jeopardises its correct operation, an ERROR screen (RED) or a WARNING screen (YELLOW) will appear on the display. ERRORS: Machine block situations due to a series of malfunctions, which could damage it further. Never restore in automatic mode. They can be restored manually by pressing on the error message for a few seconds. The machine goes back to the stand-by status and the error is re- verified. WARNING: Machine block situations due to temporary external factors or problems that are easy to solve. They are restored in automatic mode. The machine resumes from the stand-by status and manual rearm is required. In the case of Warning 12 and 13, the machine will block, but only a malfunction signal banner will be displayed. Error 1: H2O flow Problem: The flow sensor inside the pump does not detect or only partially detects the correct circulation of the liquid in the cooling circuit Solution: Check the correct level of the liquid Check the metal cylindrical filter is not clogged Contact the technical after-sales assistance Warning 2: Remote interlock Symptom: The remote interlock switch contact is open Solution: Close the contact to restore the work session Error 3: Charging Capacitors Problem: The internal capacitors are not charged correctly Solution: Check suitability of the electric plant Check there are no problems with the electricity supply Contact the technical after-sales assistance Error 4: Simmer Problem: The lamp is not working or has difficulty switching on (Simmer) Solution: Check the number of shots performed Contact the technical after-sales assistance Warning 5: High CCPS temperature Symptom: The temperature of the internal electronics is too high Solution: Wait for the equipment to restore automatically, do not switch off, but leave it on to quicken up the cooling process. If it does not take place automatically, contact the technical after-sales assistance Error 6: Shutter Problem: The safety shutter in the resonator does not close/open or does not work correctly Solution: Contact the technical after-sales assistance Error 7: Reset optical motor Problem: The optical adjustment mechanism does not move correctly or is blocked. The position is not reset or the reset micro- switch is not working. Solution: Contact the technical after-sales assistance Warning 8: Water/machinery temperature too low Symptom: The temperature of the water/machinery is too low. Solution: Install the equipment in a warmer place, avoid high temperature changes. Wait for the equipment to reset automatically, do not switch off, leave it on to quicken up the process. If it does not take place automatically, contact the technical after- sales assistance

Symptom: The temperature of the coolant is too high. Solution: Wait for the equipment to reset automatically, do not switch off, leave it on to quicken up the cooling process. If it does not take place automatically, contact the technical after-sales assistance. Code 10: Not managed. Code 11: Not managed. Warning 12: UV Lamp Symptom: Problems with UV lamp switch-on. Solution: Contact the technical after-sales assistance. Warning 13: Cooling fan Symptom: Operating problems of the rear cooling fan. Solution: Contact the technical after-sales assistance. Warning 15: Safety panel Open Symptom The chamber door is open. Solution Close the door. WARNING! The equipment must NOT be installed in an environment that is too hot and away from heat sources; the higher the ambient temperature, the lower the efficiency of the cooling circuit/heat exchanger will be.

All rights reserved Revision: Issue date 00 12/02/2020 S.P. 01 07/08/2020 S.P. 02 26/08/2020 S.P. 03 08/09/2020 S.P. 04 24/09/2020 S.P. 05 10/11/2020 S.P. 06 01/04/2021 S.P.