BOREAL LASER GasFinderMC-2 Operation Manual Download Page 84

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10.2

Boreal Laser Inc.

GasFinderMC Installation Manual — Drawings

August 2011

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Summary of Contents for GasFinderMC-2

Page 1: ...is Manual applies to GasFinderMC 2 GasFinderMC 4 GasFinderMC 8 Boreal Laser Inc GasFinderMC Operation Manual July 17th 2017 Menu ver mv1 10e Part no NDC 200010 F 12846 146 Street NW Edmonton Alberta CANADA T5L 2H7 Phone 1 780 488 5173 Fax 1 780 488 0780 www boreal laser com ...

Page 2: ...NDC 200010 E GasFinderPT NDC 200021 B GasFinder2 for Multiple Path Monitoring NDC 200025 A User Manuals GasViewOP NDC 200022 C GasViewMC NDC 200013 B GasMap NDC 200007 A Accessory Manuals 4 20mA Module NDC 200014 A RF Barrier Module NDC 200027 A DCR Module NDC 200016 A Diagnostic and Troubleshooting Kit NDC 200026 Copyright 2013 Boreal Laser Inc All rights reserved Reproduction in any manner witho...

Page 3: ...e Please install in accordance with these instructions WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK Do not expose this equipment to rain or moisture Do not use the unit near water and do not immerse in any liquid or pour any liquid on the unit Servicing is required when the unit has been damaged in any way such as the power supply cord or plug is damaged liquid has been spilled or objects have fal...

Page 4: ...sFinderMC 3 1 Retroreflectors 3 2 Transceivers Remote Heads Heads 3 4 OP1 Short Path Transceiver Head 3 4 OP3 Long Path Transceiver Head 3 5 Optical alignment 3 7 Adjusting the Aiming Scope 3 8 OP4 Long Path Transceiver Head 3 9 Duct Probe 3 11 Attenuation 3 11 Cable connections 3 12 Fibreoptic 3 12 Coaxial 3 13 Data 3 14 Power 3 14 Accessory Modules 3 15 Section 4 Data Input Output 4 1 DB15 Conne...

Page 5: ...Appendices 9 1 Appendix A Menu 9 1 Appendix B Status Codes 9 3 Appendix C Explanation of ppmm 9 4 Appendix D Explanation of R2 9 5 Appendix E Conversion from ppm to mg m3 9 7 Appendix F 2 Way Serial Communication 9 8 Appendix G Calibration 9 9 Appendix H Pre Ship Settings 9 10 Appendix I Accessories 9 11 Appendix J Cable Compensation 9 12 Section 10 Drawings 10 1 1 JB 0723 MC A MC Interconnection ...

Page 6: ...l Laser Inc GasFinderMC Operation Manual Contents July 17th 2017 GasviewMC Software Display OP1 Open Path Transceiver Head V1 Duct Transceiver Probe OP3 Open Path Transceiver Head OP4 Open Path Transceiver Head ...

Page 7: ...service will be charged at cost This warranty does not apply to situations where system performance has been compromised as a result of customer negligence or abuse or damage resulting from natural disasters Boreal Laser Inc provides software upgrades and unlimited telephone and e mail support free of charge for the lifetime of the installation Extended warranty is available see your Boreal Laser ...

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Page 9: ...ations should be avoided if possible Steam may pose a problem if it is dense and consistently crosses the path If the location is outside and the climate is humid a rain hood and a heated enclosure may be necessary to prevent condensation on the window This usually requires an outlet close by to supply power to a heater The reflector mounting can tolerate small vibrations and movement but the refl...

Page 10: ...ble termination tool Amphenol crimper ARF1118 with CTL 3 jaws 0 100D and 0 429D Wire cutters wire stripper linesman s scissors pliers Knife Duct tape Electrical tape and self amalgamating tape Label maker or cable markers Silicone sealant RTV3145 Twist drill set and step bit or hole saw selection Small multimeter Diagnostic and Troubleshooting Kit Ladder and or man lift as appropriate If pre termi...

Page 11: ... Relay output These modules are described in their own manuals A schematic illustrating the cable connections is shown in the drawing section at the rear of the manual Caution The infrared laser output from the GasFinderMC has very low power conforms to Class 1 as per IEC 60825 1 and will not damage eye tissue However it is the recommendation of Boreal Laser Inc that as with ANY LASER SYSTEM the u...

Page 12: ...re probably the maximum number that can be economically used as the cost becomes prohibitive as the number of Retros increases At path lengths greater than 750m maintaining the correct alignment becomes difficult These Retros are enclosed in a PVC RPF or stainless steel enclosure The number of Retros will depend on the type of gas being measured the path length and atmospheric conditions The windo...

Page 13: ...ndicate Low Light There is no indication that the returning light has exceeded 16 368 When this happens the receiver saturates and the displayed light value could read very low 200 In this situation the gas concentration readings will be in error and it is also possible to cause damage to the optical components The light value can be adjusted with the use of different Retros Note Care should be ta...

Page 14: ...Rotate the unit so that the head is aligned with the reflector Tighten the 12mm bolt Remove the 8 screws from the rear plate Connect a visible laser to the fibreoptic laser connector at the rear of the unit Align the Remote Head until the red dot appears on the reflector Connect the fibreoptic and coaxial cables to the rear connectors and to the GasFinderMC and switch on Make a final alignment adj...

Page 15: ...ew Covers Horizontal Locking Screws Vertical Alignment Screw 1 turn 2 0 mrad Coaxial Output Horizontal Alignment Screw 1 turn 2 6 mrad Installing the Mount and the Stainless Steel Enclosure Caution care should be taken not to get the fingers trapped between the cover and the sides of the base especially before the shocks have been connected Remove the enclosure from the packing case open the cover...

Page 16: ...e mount Use the four x 20 x 1 2 screws to fasten the X Y mount to the stainless steel bottom plate Bolt the base mount to a structurally stable base see page 7 5 and bolt the stainless steel enclosure with the Remote Head to the base mount Use the base mount to align it approximately with the retro If the aiming scope is not already attached fasten it to the Remote Head with the large end towards ...

Page 17: ...the GasFinderMC A reading below 200 is an indication that more reflectors are required on that path A reading greater than 2000 is an indication that the laser signal may have to be attenuated If the retroreflector is not visible in the alignment scope or difficulty is experienced getting a reading on the RLM connect the visible laser to the fibre connector located above the coaxial connector Swit...

Page 18: ...ng the eye laterally will cause the cross hairs to move across the Retro Remove the caps covering the adjustment screws Turn the zoom on the scope to a maximum Focus the eye piece so the retros are sharp Position your eye so that all the apertures in the scope are concentric and open the full diameter Depending on your eyes this may be about 6 inches away from the eye piece Then the cross hairs in...

Page 19: ...condensation forming on the window or the Retro Optical Alignment Remove the opposite port cover plate Attach a visible laser to the optical connector in the Duct Probe and adjust the alignment screws so that the red beam is visible in the opposite port Most ducts have a particulate load and the red laser can easily be seen reflecting off the particles A piece of white paper placed over the port c...

Page 20: ...The Diagnostic and Troubleshooting Kit contains a Remote Light Meter RLM Power Meter Visible Laser Infra Red IR card cables and cleaning tape Fibreoptic Connections The fibreoptic couplings are FC APC and are used to connect two FC APC fibre connectors There is a key on the connector barrel to align with the keyway in the coupling The key and keyway must be engaged in order for the connection to b...

Page 21: ...7 17 4mm 10 3mm N Connector N to BNC Jack BNC Patch Cord Crimp here 8 1 4 7mm Crimp here 1 Slide the ferrule onto the cable and strip the jacket braid and dielectric to the dimensions shown All cuts should be sharp and square Caution do not nick the braid dielectric or centre conductor Do not comb out the braid 2 Insert the pin over the centre conductor so that it butts up against the dielectric T...

Page 22: ...e plug may be removed and a local plug connected with appropriate pins or the cord wired directly to a circuit breaker or fuse In areas where the power supply is intermittent the use of an Uninterruptible Power Supply UPS that has a minimum rating of 200VA is recommended An internal 3 amp fuse is accessible at the rear of the GasFinderMC Data Cable this allows a twisted pair of wires to carry the ...

Page 23: ... rack mounted unit 2U high which uses the serial data output from a GasFinderMC Central Control Unit CCU to control relays in the DCRM The module is configured using the CCU and depending on the channel alarm settings the DCRM will energize the relays to give an NC or NO output The relay operation is triggered by four conditions High Gas Warning Alarm 1 High Gas Alarm Alarm 2 Low Light condition L...

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Page 25: ...tal input from GasFinderMC 4 PCDTR Data Terminal Ready Digital input from GasFinderMC 5 GRD Signal Ground Digital Analogue 6 Ramp System Timing Clock Analogue output from GasFinderMC 7 I sink 4 20mA loop return Analogue output from GasFinderMC 8 n c 9 PCDSR Data Set Ready not currently implemented 10 PCRTS Ready to Send not currently implemented 11 PCCTS Clear to Send not currently implemented 13 ...

Page 26: ... Month Day 19 Hour Minute Sec serial_number Any 10 status_code 1 FFFF 4 check_sum 0 FF 2 These data strings are comma delimited and an asterisk signifies end of string Each string is terminated by a carriage return and a line feed The status codes are described in detail in Appendix B of this manual data_header channel_number gas_concentration confidence_factor R2 distance light_level date_time se...

Page 27: ...on systems with older software the duty cycle was 0 to 255 checksum reference_R2 debug_header internal_temperature centerline_duty_cycle numbers for internal use only date_time reference_cell_quality GFDBG 32 6 512 9332 98 xxx xxx xxx xxx 2011 01 27 13 29 31 8C Debug_header internal_temperature centerline_duty_cycle reference_cell_quality reference_R2 xxx xxx xxx xxx date_time checksum header desi...

Page 28: ...eader activation settings date_time checksum header designating the type of data String 1 is channel enabled 0 is channel disabled Integer current date and time YYYY MM DD hh mm ss checks the data stream for errors String Explanation The format of the GFCLE string is as follows Low limit_header checksum GFCLL 0 0 0 0 0 0 0 0 2011 01 27 13 29 33 9A date_time low limit_settings_for_each_channel The ...

Page 29: ...of the MC data which is continually updated This is described fully in the GasViewMC manual Alternatively any computer with a HyperTerminal program can be used to download the data HyperTerminal is a standard accessory in Windows 9X and Windows NT XP Windows 7 requires a Hyperterminal emulator program to be downloaded 2 Way Serial Comunication All GasFinderMC units with software version 1 10e or l...

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Page 31: ...ligned with a reflector it will not calibrate 3 If the Remote Head has not been aligned the display will read and will cycle through any enabled channels trying to find one that has an adequate light level 4 Press and hold the ENT key on the keypad and the GasFinderMC will enter a menu showing Serial Number Channel Specific Menus System Menus and Password Protected Menus 5 Press the up or down key...

Page 32: ...re is known and entered the nominal altitude is automatically calculated and displayed Entering the correct Absolute Pressure is the prefered method 11 Press the down key on the keypad and the display will read Set this number to the Absolute atmospheric pressure of the path If the altitude is entered the nominal pressure is automatically calculated and displayed 12 Press the down key for the Ligh...

Page 33: ... is pressed and provides a convenient way of checking the serial number of the instrument and the software currently installed This is not an adjustable item The user then has three choices Channel Specific Menus These items have to be entered for each channel that is used System Menus These items apply to all channels Password Protected Menus These Menus are only available for Boreal Laser person...

Page 34: ...tion by the on board computer the resulting value is called a sample One sample typically takes about 1sec Gas Shift Menus this item allows the user to manually line up the waveforms and is used to increase the R2 value Consultation with Boreal Laser Inc is strongly recommended before changing this value Alarm Settings Menus this sub menu allows the user to select the set point at which the Dry Co...

Page 35: ...annel Power not currently used and set to Disabled Phase Shift not currently used and set to Disabled Cable Compensation this item is used to compensate for long coaxial cable runs from the remote head or duct probe back to the CCU At lengths under 100m the value is close to 1 0 and increases towards 3 0 as the runs approach 1000m The compensation values are given in Appendix J Pressing ESC twice ...

Page 36: ...he use of high gas levels The Dry Contact Relay and the 4 20mA modules can also be tested with this submenu Select Force Channel all selects which channels to test Force ppmm sets the value in ppmm which will trigger a warning or alarm Force Gas Warn enables or disables warning circuits Force Gas Alarm enables or disables alarm circuits Low Light Overide tests the low light warning circuits Furthe...

Page 37: ...tring Remote Heads and Duct Probes The Remote Heads and Duct Probes rely on a clear optical path to obtain accurate readings of gas concentration Dust settling on the windows must be cleaned off whenever it degrades the instrument s performance The average value for the light level should be kept between the recommended values set at the time of installation Regularly inspect the equipment and rem...

Page 38: ...ng them The recommended procedure for cleaning is as follows Blow off any dust using canned compressed air A Note that compressed shop air may contain oil from the compressor and should not be used without a filter or oil trap If the window is streaked with rain deposited particles wash the window with large amounts of water using a spray bottle laboratory or other type and clean fingers Gently wi...

Page 39: ... from excessive dust Regularly check the cabinet cooling system operation and temperature monitor if installed 3 Optical Paths Maintenance The optical paths and optics need to be maintained free of obstruction and the surfaces reasonably clean Acheck of the Light Level History is an invaluable tool for assessing the window or alignment condition The following should be performed when a low light c...

Page 40: ...ection of potential problems to ensure system performance and reliability 6 Performance Indicators Array Dump It is recommended that an array dump be performed monthly and the array file kept for records as a history of system performance The array dump shows the spectral scan of the sample path and reference cell This can be examined for changes against previous files and saved for reference 7 An...

Page 41: ...FinderMC Readings can be simulated by using the Alarm Test Menus in the GasFinderMC Dry Contact Relay Module Testing can be performed using the Alarm Test Menus in the GasFinderMC Testing of the modules should be performed regularly at intervals determined by your company s policy Care should be used when checking the 4 20mA Module and the Dry Contact Relay Module as unplanned testing may have ser...

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Page 43: ...bstruction has been removed e g fog lifts rain stops or vehicle equipment is moved No data transmission from GasFinderMC to the computer Check that the correct baud rate is selected usually 9600 Enter System Menus and scroll to the Serial Baud Rate window Verify that the data cable is connected and the cable is OK see page 3 11 It is possible with a digital voltmeter to see a very short signal pul...

Page 44: ...al Err collect anArrays Transfer File see page 7 4 and send it to Boreal Laser Inc together with 30min of data from the gvl text file This will allow Boreal Laser Inc to diagnose the problem Periodically strings containing diagnostic data GFDBG are sent from the GasFinderMC These can be seen in the ViewData window of the GasViewMC program If the centreline duty cycle is below 300 or above 800 in t...

Page 45: ...ond to the keys This may occur when in the influence of large magnetic fields or after being exposed to a high static discharge If close to a high magnetic field move the GasFinderMC further away Cycle the power by switching the system on and off If the problem still persists the operator should contact Boreal Laser Inc for further information on resolving the problem Symptom Solution ...

Page 46: ...ViewMC software can be used to record the file To download the arrays Connect the GasFinderMC to a computer and run the GasViewMC program Click on Options and then click Arrays Plot Enable At the GasFinderMC enter the menu and in the Channel Specific Menus the first item is Internal Arrays Transfer Press Enter The display will read Acquiring Transferring The computer screen will show a series of c...

Page 47: ...ine before the beam will move completely off the retro array This movement is referred to as translational In practice significant translational movement is unlikely to occur as the post is usually fastened to a solid base However because it is fixed at the bottom torsional or bending movement is much more likely due to wind loading or thermal distortion Any East West bending i e perpendicular to ...

Page 48: ...gh To comply with safety regulations the height of a scaffold cannot exceed three times the width of the narrowest base dimension This gives a very stable platform however the alignment will often move slightly when the operator descends The scaffold can also be placed on adjustable legs to accommodate different ground elevations Thermal Effects Differential heating of support legs can cause diurn...

Page 49: ...on of the metal structure carrying the laser mount which twists with respect to the longitudinal axis of the original laser path This causes the laser beam to move away from the retros and results in a drop in the returning light level The amount of movement will vary considerably with the orientation of the building and the attachment of the mount within the building and the length of the path If...

Page 50: ...the light level drops Note where the cross hairs are in the scope relative to the retro at these positions see Figure 4 and position the Remote Head so that the cross hairs are in the centre of the travel In the example shown the cross hairs would be at the top right corner of the retros when the beam is centred on the retro Looking through the telescope and without adjusting the alignment of the ...

Page 51: ...e principle except that the tube mirrors and crystal are all combined in a small package using semiconductor technology The diode laser is composed of a pn junction as in the light emitting diode LED and specially cleaved mirror facets that form the optical cavity The output wavelength is fixed The size of the laser and focusing optics is similar to the size of the eraser on the end of a pencil A ...

Page 52: ...fic absorption wavelength for this target gas See figure 2 The laser operating wavelength is kept stable by housing it in a temperature controlled box A fluctuating saw tooth current is used to drive the laser and this causes the wavelength to change slightly so that the laser scans across the absorption wavelength The laser beam has a signal superimposed on it at a different frequency See figure ...

Page 53: ...ing on the rear behind the glass See figure 4 A retro is different in that the reflected light returns in the same direction as the incident light The beam is reflected 180 degrees A retro is like a section through a corner and has three faces that form the inside corner of a cube Some highway reflectors are everyday examples See figure 5 Because retros used for laser gas detection have the reflec...

Page 54: ...microcontroller A small device using a microcomputer microcomputer A small computer the size of a postage stamp micron 0 000 001 part of a meter modulated Like a wave molecule A collection of atoms bonded together multimode A light beam containing many different frequencies nanometer 0 000 000 001 part of a meter NIST National Institute of Standards and Technology OTDR Optical Time Domain Reflecto...

Page 55: ...faults ent Enter Password esc Internal arrays transfer ent Acquiring Restore esc x x x x x x enter Transfering Proceed esc Minimum Attenuation ent Adj Level Ent Yes Esc No Level 1 esc 1 4 Factory Defaults ent Enter Password Part NDC 200011 B Password Protected Menus Menu Structure for the GasFinderMC Coldfire Version mv1 10e December 2012 Path Temperature 20C Altitude 0m Absolute Pressure 101325 P...

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Page 57: ...This is actually 0001 but the software ignores the leading zeros and indicates a status code of 1 This corresponds to 0000_0000_0000_0001 and indicates an instrument status of n0 NO_ERROR When the GasFinderMC is used in conjunction with Hyperterminal or Boreal Laser s GasViewMC data logging program the data stream which is sent to the file is as follows Status Code 2 8 0 0 Hex n3 n2 n1 n0 0 0 0 0 ...

Page 58: ...the total amount of a specific gas for example HF in the path of the laser beam between the transmitter unit and a reflector This is a total path measurement The units are parts per million metres or ppmm A uniform background concentration of 10ppm over 50m gives a reading of 500ppmm 10ppm x 50m 500ppmm When the 500ppmm is divided by 50m the result is a value of 10ppm which is the path averaged co...

Page 59: ...edure to compare curves or numeric arrays is the Linear Least Squares Regression analysis This analysis results in a measure of the similarity R2 between the waveform of the sample gas and that of the reference cell gas A perfect similarity would give a value for R2 of 1 0 and a total mismatch would be 0 0 The blue line represents the Linear Least Squares fit of the data and is the best fit of a s...

Page 60: ...i e the signal to noise ratio will increase The general shape of the plot is the same for all gases however the x axis values will depend on the sensitivity of the instrument to the gas species being observed Use of R2 The point at which the bend or knee of the curve occurs in the plot of R2 ppmmcan be used to determine the sensitivity of the instrument to the gas concentration measurement This va...

Page 61: ...pm HF 0 8927 mg m3 at STP STP refers to Standard Atmospheric Pressure P 101 325kPa Standard temperature K 273 15K If the measurement is not taken at STP then an aditional correction is required to adjust to STP Concentration mg m3 at STP Concentration mg m3 x T x 101 325 273 15 P where T is the path temperature Kelvin P is the absolute path pressure kilopascals eg With a reading of 11 ppm a path t...

Page 62: ...troled remotely with commands passed through the data cable This cable requires three conductors and is marked with a yellow band The remote control enables the user to alter various parameters without entering the menu in the GasFinderMC with the ensuing time delay while the system recalibrates If the user is operating with GasViewMC ver 4 02 or later the commands are done automatically otherwise...

Page 63: ... standards The calibration data are stored in the instrument s software as a standard reference waveform During operation the GasFinderMC s internal reference cell is compared with this stored waveform at frequent intervals Any significant deviation generates a status code to alert the user to a potential calibration problem The GasFinderMC software can be used to check the reference cell as well ...

Page 64: ... ENA 7000 7000 7000 7000 7000 Swps Ref x Swps Smpl 101325 101325 101325 101325 101325 101325 4095 ENA ENA ENA ENA ENA ENA 4095 4095 4095 4095 4095 4095 Light Menu ENA 4095 7000 9000 Sweep Light Maximum Sweep Light Minimum 0 0 0 0 0 0 0 0 0 99999 1 99999 0 0 0 0 0 0 0 0 0 99999 0 0 0 0 0 0 0 0 0 99999 1 99999 0 0 0 0 0 0 0 0 0 99999 1 256 Dis Dis Dis Dis Dis Dis Dis Dis enabled disabled 0 4095 1 1 ...

Page 65: ...Mount Small Boreal X Y Mount Large Boreal X Y Mount Stainless Steel Enclosure Enclosure for OP3 Remote Head Cables Data Cable Data Cable DB15M DB9F Data Cable DB15M DB9F with 4 20mA pair Fibreoptic Cable Preterminated with FCAPC connectors Multi core Armoured fibre Coaxial Cable Belden 9880 Armoured coaxial Connectors N type Retroreflectors Retro Tape Roll Red White Retro Tape Sheet Grey IMOS Refl...

Page 66: ... the signal by different amounts depending on the length of the cable The value of the compensation is specific to each channel and is entered at the time of commissioning by using the appropriate section in the Menu Cable Distance m Cable Compensation 50 1 04 100 1 09 150 1 14 200 1 19 250 1 24 300 1 29 350 1 35 400 1 41 450 1 47 500 1 53 550 1 60 600 1 67 650 1 74 700 1 81 750 1 89 800 1 98 850 ...

Page 67: ...t Overall Dimensions 3 BOR 02110 J OP1 Head Overall Dimensions 4 JB 0930 RH B OP3 Remote Head Dimensions 5 DP D V1 0001 V1 Duct Probe General 6 DP D V1 0002 V1 Duct Probe Dimensions 7 DP D V1 0003 V1 Duct Probe Purge Air Connections 8 PK 1023 UE A Rev D Remote Head Enclosure Baseplate 9 BOR 0210 OP3 SS Enclosure Dimensions 10 BOR 2915 OP3 SS Tilting Joint Dimensions ...

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Page 69: ...U RF Barrier Module N C BLOCK 2 BLOCK 1 C B A B A E D C N J H G F M K A B J BLOCK 3 F D E G H N K M BLOCK 4 F C A B D E J G H K M System Fault Data Out Power 12Vdc 500mA Data In Gas Level 2 Channels 1 4 Gas Level 1 Channels 1 4 Light Level Channels 1 4 BLOCK 5 A D C B F G E K H J M N A C D B M BLOCK 6 F G E K H J N A BLOCK 7 H C D B F G E M K J N Gas Level 2 Channels 5 8 Gas Level 1 Channels 5 8 L...

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Page 71: ...BOREAL LASER INC MC Instrument Overall Dimensions JB0125MC A 1 of 1 NTS A Dim mm ...

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Page 77: ...mm BOREAL LASER INC 13 51127 Range Road 255 Spruce Grove Alberta Canada T7Y 1A8 Ph 780 987 4382 Fax 780 987 2418 Web www boreal laser com DIMENSIONS inches mm THE INFORMATION CONTAINED IN THIS DRAWING IS THE SOLE PROPERTY OF BOREAL LASER INC ANY REPRODUCTION IN PART OR AS A WHOLE WITHOUT THE WRITTEN PERMISSION OF BOREAL LASER INC IS PROHIBITED PROPRIETARY AND CONFIDENTIAL MATERIAL FINISH EDITED BY...

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