Newport / Oriel Universal Arc Lamp Housings Manual
Contents
1. 15 IV 2 1 Xenon and Mercury Xenon Lamps sseseneeeeem eene rennen 15 DAE MEN Mercutty Lamps EL c L m 15 Pale Si eaol a ecce 17 l OMS PHP AIV o M 18 MEME eltunp 19 VASNEIrelesnizile 19 VA REALLENGES 20 V4 4 Spherical Aberration ssiri enirn Ed se cet anc Melvin a Ld 20 V 4 2 Chromatic Aberration esssssssseseeseeeeeenee nene nneen nennen enne nnne trennen enne 21 V 5 HOW DO YOU POSITION THE CONDENSER TO GET A COLLIMATED BEAM 21 TROUBLE SHOOTING pta trn ninh nut danh nr ha nna an dna neon a nora ka nn peat pra a ta 22 VET INTRODUCTION 22 V2 PROBLEMS 22 WARRANTY AND RETURNS esee pke Enake AKNA ARAR RERE SNERRE ARERR KRAAK KAASNE RNA 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 LIST OF FIGURES Lamp andiretlector adjustments enr eerte tate Fa t e e eda exe du 7 Safety interlock and electrical sockets ssssssssssssesseeeenennene ennt 8 ilr Ier PIETS iE 9 Correct operating position for arc lamps2. sssssssssseseenee enne nnne nennen 11 Arc lamp inside TIoUSIDg siririna Ee aba ere rr reed Eee enirn Ys Fx PER Rer nau 12 The electrodes viewed on a screen in front of the condenser sssssssssss 14 Correctly positioned reflector sess nnne nennen 14 Attaching battle plate tr ere ei teet teet genu crap ux Papx g suu cu ERR uda 16 Gollirated Bears iocus iocur rne Rennen eu ped pagar dn hd a ER n ga a ea 18 The collimated output of a 200 W Hg lamp in the vertical and horizontal planes 19 A source focused to a smaller image sess enne 19 Spherical Aberration iensor a RR DOZRRS E ERE a EE TOR RR E EE 20 Chromatic abetrratlOn e ospite RN EROZREs Ea iE S aE REE 21 Installing trigger wire on Xe lamp sssssssssseseneneneneneneneenn ennemis 23 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING l INTRODUCTION This manual covers the Oriel 50 to 500 watt W Universal Lamp Housings We divide them into two categories housings for 50 to 250 W short arc lamps and housings for 200 to 500 W lamps 50 to 250 W Lamp Housings 66055 Lamp Housing with no condenser 66056 Lamp Housing with Fl1 5 condenser 66057 Lamp Housing with Fl1 condenser 66058 Lamp Housing with F10 85 condenser 66059 Lamp Housing with FIO 7 glass fused silica cond
3. Figure 14 Installing trigger wire on Xe lamp 2 The Lamp Housing Fan fails to operate The Lamp Housing Fan should operate whenever power is applied to the housing Recommended Procedure 1 Ifthe fan does not operate then check that the Lamp Housing power cable has power and that the line switch 110 220 is set correctly If thefan still fails to operate call Newport for further assistance 23 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Lamps do not reach the correct current voltage If a mercury lamp is not running at the correct temperature it will not reach the correct currenffvoltage If the lamp is running at its rated power but the lamp current is too high and the voltage is too low the lamp is being overcooled If the lamp is running at its rated power but the lamp voltage is too high and the current is too low it is being undercooled Recommended Procedures 1 Check that the fan is baffled 2 Check that there are no obstructions to airflow in front of the fan 4 You cannot image the arc properly some distance from the Lamp Housing 5 Normally you should be able to image the arc on a surface some feet or meters away from the Lamp Housing by simply adjusting the condenser lens position You should also be able to adjust the lamp position to center the beam in the condenser barrel output aperture Recommende
4. A rtisan Artisan Technology Group is your source for quality TecmoogyGroup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com M 66055 GY NNevvport ORIEL PRODUCT LINE 150 Long Beach Boulevard Stratford CT 06615 Phone 203 377 8282 800 714 5393 Fax 203 378 2457 E MAIL oriel sales newport com UNIVERSAL ARC LAMP HOUSING MODEL 66055 USER MANUAL Please read these instructions completely before operating this equipment The specification and operating instructions apply only to the model s covered by this manual If there are any questions or problems regarding the use of this equipment please contact Newpo
5. a broken wire or thermostat which is jammed open If you cannot trace the fault contact Newport for advice Do not operate the Lamp Housing with a defeated interlock Check the main power connections to the Lamp Housing and lIgnitor Power Supply Check the lamp and the internal connections to the lamp Remove the lamp and fan power from the Housing open the Lamp Housing and check the lamp and that the contacts are properly tight You may need to remove the lamp and 22 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING examine it Assuming no catastrophic damage check for cracks in the lamp or lamp stem Examine the molybdenum strip conductors inside the lamp stem for continuity Small breaks in these conductors will prevent lamp operation Examine the electrodes for excessive burn back or rounding If the lamp has a trigger wire check that it is properly attached If it does not have a trigger wire and it is a Xe or Hg Xe lamp you can attach one in the following way a Use a high temperature nichrome wire AWG 28 with an OD of 0 315 mm b Wearing finger cots or gloves loop the wire around the top of the lamp envelope A in Figure 14 twisting the end securely c Bring the wire down the side of the envelope B nearest to the vacuum Fill breakoff mark Keep the wire snug against the glass Awg 28 0 315 mm NICHROME WIRE
6. have other Lamp Housings or Ignitors Power Supplies to interchange as a problem finding technique we recommend you send the complete system Ignitor Power Supply Lamp Housing and lamp to Newport for diagnosis of the failure mode Recommended Procedures 1 2 Check that the Power Supply is operating power breaker light and fan Check that there is pre ignition voltage available from the Power Supply Move the toggle switch on the Power Supply to the voltage position and check that there is an open circuit voltage of more than 100 volts If not check the interlock circuit If there is no pre ignition voltage then the interlock circuit may not be closed Check the interlock circuit First check that the door of the Lamp Housing is fully closed thus activating the door switch This may cure the problem If not check the interlock fully You can do this by using a shorted interlock plug to plug into the Power Supply If you do not have a shorted plug remove the plug from the Lamp Housing and short the terminals using wire Check for pre ignition voltage If there is no voltage then there is a problem with the Power Supply If the voltage is present using the shorted plug but is not there when you connect the interlock to the Lamp Housing then there is a problem with the Lamp Housing interlock circuitry The simple circuit is located inside the Lamp Housing After removal of all power lamp and fan power check inside the housing for
7. ideal lens the aberration free lens is not spherical in shape With the exception of the aspheric F 0 85 condenser these condenser lenses like most lenses have spherical surfaces for economic manufacturing In general spherical aberration is decreased by dividing the refraction light bending as equally as possible between as many surfaces as possible The lens shapes plano convex for the fused silica singlets of our condensers and orientations minimize spherical aberration for the type of condenser and at the collimating position The F 0 7 Aspherab multi element lens assembly practically eliminates this aberration by balancing the effects between lenses Consider the simple plano convex lens collimating light from an ideal point source With the plano surface towards the point source and the point source at the paraxial focus the marginal rays converge while the paraxial rays are collimated Figure 12 This is due to spherical aberration For the ideal non spherical lens shape the paraxial and marginal rays are all collimated If the source is located about 1 4 f inside the focus the paraxial rays diverge slightly and the marginal rays are almost collimated This is often the optimum compromise for a single element collimating lens and has the added advantage of collecting more light from the source The lens adjustment on these lamp housings allows the lens to be moved closer to the source than the paraxial focus You can empirica
8. the original packaging is not used Include the cables connector caps and antistatic materials sent and or used with the equipment so that Newport can verify correct operation of these accessories Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com A rtisan Artisan Technology Group is your source for quality TecmoogyGroup new and certified used pre owned equipment FAST SHIPPING AND SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT DELIVERY Experienced engineers and technicians on staff Sell your excess underutilized and idle used equipment TENS OF THOUSANDS OF at our full service in house repair center We also offer credit for buy backs and trade ins IN STOCK ITEMS www artisantg com WeBuyEquipment EQUIPMENT DEMOS HUNDREDS OF InstraV ea REMOTE INSPECTION LOOKING FOR MORE INFORMATION MANUFACTURERS Remotely inspect equipment before purchasing with Visit us on the web at www artisantg com 7 for more our interactive website at www instraview com information on price quotations drivers technical LEASING MONTHLY specifications manuals and documentation RENTALS ITAR CERTIFIED yop aed Contact us 888 88 SOURCE sales artisantg com www artisantg com
9. 8 and 66048 Fl0 85 condenser 66059 and 66067 F10 7 glasslfused silica condenser 66060 and 66068 F10 7 fused silica condenser The lenses were designed for efficient collection of light from the arc In order to get the best performance from your Lamp Housing we first review some aspects of light collection and then describe how to set the lens position By moving the focusing lever you can move the position of the condenser lenses to produce a diverging beam collimated beam or to re image the arc The lenses in these housings are designed for collimation rather than imaging The lens shape and orientation are selected to minimize lens induced distortions aberration when the lenses are close to the position which produces a collimated beam the collimating position When you use them for imaging there are two penalties lens aberrations increase and light collection is reduced For imaging the lens is moved further from the arc and so gathers less of the light emitted by the arc within its aperture The lens operates at a higher F See Catalog for a comprehensive discussion on aberrations If you need to image the arc close to the Lamp Housing or equivalently produce a small image of the arc then it is more efficient to use the condenser in the collimating position and use a secondary focusing lens to create the image To simplify the discussion we first describe the operation of an ideal lens and then some of the major results of aber
10. 8805 Universal 68705 Universal 50 W Xe 6282 66158 68806 68805 Universal 58705 Universal 68709 Hg only 100 WHg 6281 66150 68806 68805 Universal 68705 Universal 68709 Hg only 200 W Hg 6283 66153 68806 68805 Universal 68705 Universal 68810 Hg only 68709 Hg only 6291 66152 68806 68805 Universal 68705 Universal 6292 66152 68806 68805 Universal 68705 Universal 200 to 500W 200 W Hg 6283 66144 68806 68805 Universal 68705 Universal 68810 Hg only 68709 Hg only 350 W Hg 6286 66161 68810 Hg only 68705 Universal 68709 Hg only 500 W Hg 6285 66162 68810 Hg only 68705 Universal 68709 Hg only 300 W Xe 6259 66160 68811 Xe only 68705 Universal 300 W Xe OF 6258 66160 68811 Xe only 68705 Universal 400 W Xe 6260 Not Required 68811 Xe only 68705 Universal 200 W Hg Xe 6291 66157 68805 Universal 68705 Universal 68811 Xe only 200 W Hg Xe OF 6292 66157 68805 Universal 68705 Universal 68811 Xe only 500 W Hg Xe 66142 66159 68811 Xe only 68705 Universal Has built in ignitor Requires external ignitor 2 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING SUMMARY OF HAZARDS There are six hazards in the operation of systems employing these lamp housings They are Il 1 1 2 11 3 Radiation Lamp Explosion Ozone Electrical Shock EMI Heat RADIATION The high intensity UV radiation of these lamps can permanently damage the cornea l
11. W S 392 AB HOUSING VOLTAGE SELECTED SWITCH AC POWER SOCKET 3 WIRE AC CONNECTOR 15A 250 VAC SWITCHCRAFT EAC 302 Figure 2 Safety interlock and electrical sockets Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Ax 0 5 1 13 13 29 Figure 3 Dimensional Diagram 9 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING IV LAMP INSTALLATION AND INITIAL OPERATION 1 Check that there is no electrical service to the housing and that the lamp power supply is off and discharged m Put on safety goggles and gloves 3 Unscrew the four thumb screws on the side of the housing and remove the access door gt A Determine which orientation is correct for the lamp For xenon and mercury xenon lamps the anode ve is at the top For mercury lamps the anode ve must be at the bottom You can identify the anode by a stamped on the lamp base Any lamp identification writing or numbers will be the correct way up when the lamp is held in the correct operating orientation See Figure 4 on page 11 for a diagram 5 Install the appropriate adapter s on the lamp terminal s Depending on the lamp type these socket adapters are fastened to the lamp terminals by set screws or by a threaded connection If the l
12. amp is supplied with knurled nuts remove the bottom nut and discard before installing the socket adapter One of the knurled nuts will be used to secure the wire lug to the top terminal 6 Connect the top hanging lead to the top terminal using either the knurled set screw supplied with the lamp or the knurled set screw supplied with the top adapter 7 Place the bottom terminal with adapter into the bottom mounting block Adjust the lamp vertically so the arc gap lies approximately in the center of the mirror then tighten the knurled set screw on the side of the bottom mounting block 8 After the lamp is in position clean the envelope with alcohol and lint free tissue Fingerprints left on the lamp may cause the lamp to explode when lit 9 Replace the side access door and tighten the four thumb screws 10 Connect the lamp cables between the lamp housing and the rear of the power supply or to the ignitor if a stand alone ignitor is used ve cable to top for xenon and mercury xenon ve cable to bottom for mercury lamps Read the Power Supply and lgnitor Instruction Manuals before operation lt lt lt CAUTION gt gt gt SURE THE LAMP IS POSITIONED WITH THE PROPER ELECTRODE ON TOP AND THE LEADS ARE CONNECTED TO THE PROPER OUTPUT CONNECTORS OF THE IGNITOR POWER SUPPLY OPERATION WITH THE WRONG POLARITY WILL IMMEDIATELY DESTROY THE LAMP ELECTRODES It is important to re check the lamp cabling to the lamp housin
13. citors are fully discharged 3 Make sure all connections are securely made and check the polarity before starting a lamp 4 Do not handle the lamp leads during lamp ignition EMI Ignition of an arc lamp requires high voltage high frequency pulses A high current dump kHz discharge follows Both of these are sources of electromagnetic interference both radiated and conducted Good earthing and cable routing practice and EMI shielding may be necessary to protect sensitive digital circuitry from these pulses Recommendations 1 Start the arc lamp before powering nearby computer systems 2 Keep the computer at least 6 feet away from the ignitor power supply 3 Use a different outlet and line for the computer and ignitor power supply HEAT These lamps become hot after several minutes of operation and remain very hot for up to 10 minutes after being shut off Recommendations 1 Do not touch the lamp with your bare hands for at least 10 minutes after the lamp is shut off Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Hil GENERAL DESCRIPTION These lamp housings are lightweight but rugged They are excellent choices for most low to medium power laboratory lamps You can mount them to optical tables rails or benches Various models with different condensers are available With the complete line of optical accessories des
14. cribed in Volume 11 you can filter focus and steer the output to fit your application Both types of lamp housings described in this manual 50 to 250 W and 200 to 500 W use the same shell The 200 to 500 W models have a more powerful fan to ensure correct operating conditions for the higher wattage lamps and a different mounting block to accept the larger lamps Ill 1 LAMP AND REFLECTOR ADJUSTMENTS The position of the arc relative to the terminals which secure the lamp varies slightly from lamp to lamp This is because of normal arc lamp manufacturing tolerances These lamp housings have adjustments to place the arc of a new lamp in the same position as that of the lamp being replaced Three fine controls position the reflector Then independent tilt controls position the arc horizontally and vertically The reflector and its controls travel with the vertical and horizontal controls This eliminates the need for iterative lamp reflector adjustments See Figure 1on page 7 for location of adjusters Ill 2 LAMP COOLING The built in fan maintains the proper operating temperature for most arc lamps when operated in normal laboratory ambient Lamp housing is designed to operate in a typical laboratory environment typically 68 to 76 degrees F up to 45 relative humidity Temperature and humidity outside of typical laboratory range can contribute to cooling and ignition faults Cooling issues which will cause the over temperature sensor
15. d Procedures 1 If you still cannot image the arc remove all power from the Lamp Housing allow the lamp time to cool and then check for a broken condenser lens 2 Open the Lamp Housing and check the vertical position of the lamp The arc gap should be positioned in the center of the reflecting mirror If you have the appropriate adapters for your lamp you should be able to position it correctly If not call Oriel for further information You cannot image the arc close to the Lamp Housing You should not have a problem imaging the arc some feet or meters away from the Lamp Housing You may have problems imaging the arc close to the housing because the condenser lens adjustment does not allow the condenser to be located in an appropriate position As you move the lens out the image plane moves towards the lens The closest image plane is determined by how far out you can move the lens Recommended Procedure 1 If you need to move the lens further out there are three tapped holes in the lens barrel to allow you to change the lens adjustment range Remove the handle carefully noting the location of each small part and reassemble it with the screw in a different position to change the focus range For reimaging close to the Lamp Housing the screw should be in the hole closest to the front output of the lens barrel Note that using a secondary focusing lens is often a better approach 24 Artisan Technology Group Quality Instrum
16. e a condenser and therefore have a large aperture in the front of the housing Block this aperture with your own condenser or a plate before operating the lamp MOUNTING The lamp housings are supplied with four adjustable feet for free standing use They allow 0 63 inch 16 mm height adjustment You can also mount the housing to tables carriers or translators with tapped holes on 1 inch or 25 mm centers To do this you should remove the feet and use the three mounting points and screw slots If you have a flat enough surface you can unscrew the three mounting pads and use the baseplate directly See Figure 3 on page 9 for baseplate dimensions Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING INTERLOCKED LAMP ACCESS DOOR LAMP VERTICAL POSITION ADJUST REFLECTOR PIN LAMP D S HORIZONTAL ADJUST KNOBS POSITION ADJUST METRIC MOUNTING INCH MOUNTING SLOTS 4 SLOTS 4 Figure 1 Lamp and reflector adjustments Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING MAIN LAMP POWER TO TOP OF LAMP 1 PIN PANEL MOUNT CONNECTOR AMPHENOL MS3102A 12 5 MAIN LAMP POWER TO BOTTOM OF LAMP TO FAN 1 PIN PANEL MOUNT CONNECTOR AMPHENOL MS3102A 12 5 INTERLOCK 2 PIN FEMALE CONNECTOR CINCH JONES TR
17. e device with any accessory equipment or part not specifically approved or manufactured or specified by Newport unless buyer furnishes reasonable evidence that such installations were not the cause of the defect This provision shall not apply to any accessory equipment or part which does not affect the safe operation of the device 2 The goods are not operated or maintained in accordance with Newport s instructions and specifications 3 The goods have been repaired altered or modified by other than authorized Newport personnel 4 Buyer does not return the defective goods freight prepaid to a Newport facility within the applicable warranty period IT IS EXPRESSLY AGREED THAT THIS WARRANTY SHALL REPLACE ALL WARRANTIES OF FITNESS AND MERCHANTABILITY BUYER HEREBY WAIVES ALL OTHER WARRANTIES GUARANTEES CONDITIONS OR LIABILITIES EXPRESSED OR IMPLIED ARRISING BY LAW OR OTHERWISE WHETHER OR NOT OCCASIONED BY NEWPORT S NEGLIGENCE 25 This warranty shall not be extended altered or varied except by a written document signed by both parties If any portion of this agreement is invalidated the remainder of the agreement shall remain in full force and effect CONSEQUENTIAL DAMAGES Newport shall not be responsible for consequential damages resulting from misfunctions or malfunctions of the goods described in this manual Newport s total responsibility is limited to repairing or replacing the misfunctioning or malfunctio
18. ens and retina of the eye even causing blindness This damage may not be immediately apparent The deep UV is absorbed in the cornea or eye fluids focused UV VIS and NIR can damage the retina Normal blink reaction to visible light may not be adequate protection and a beam of invisible UV or NIR produced by spectral filtering can be most dangerous as the blink response is not induced UV radiation can also cause painful sunburn and with prolonged exposure serious burns Recommendations 1 Never look directly into the output beam of a housing when operating a lamp 2 Never look at a specular mirror reflection of the beam even for short periods of time 3 Use the interlock system to prevent access to a working lamp 4 Always wear UV safety eyewear or facemask and protective clothing for exposed areas of skin LAMP EXPLOSION When cold xenon and mercury xenon arc lamps are under several atmospheres of pressure and are subject to explosion due to internal strains or to physical abuse When hot all lamps are under a pressure of close to 100 atmospheres and subject to violent explosion Recommendations 1 Do not handle a bare arc lamp without safety goggles and adequate protection for exposed areas of skin 2 Do not apply torque to the lamp envelope during Installation or removal 3 Do not touch the lamp envelope Fingerprints and other contaminations left on the lamp cause a Thoroughly clean the envelope after instal
19. enser 66060 Lamp Housing with F10 7 fused silica condenser 200 to 500 W Lamp Housings 66065 Lamp Housing with no condenser 66047 Lamp Housing with F11 5 condenser 66066 Lamp Housing with F11 condenser 66048 Lamp Housing with FI0 85 condenser 66067 Lamp Housing with FIO 7 glass fused silica condenser 66068 Lamp Housing with F10 7 fused silica condenser The housings have the same basic design and differ in the condensing lens assembly and fan With the appropriate socket adapter you can interchange between Hg Xe and Hg Xe lamps of different power These lamp housings are designed to operate with Oriel Power Supplies Table 1 on the following page shows the appropriate socket adapter for each lamp and the power supply you should use Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Table 1 Appropriate Socket Adapters and Power Supplies for Oriel Lamp Housings Lamp Basic Lamp Model Socket Power Fully Featured Housing Type No Adapter Supply Power Supply Ignitor 50 to 250 W 75 W Xe 6251 66150 68806 68805 Universal 58705 Universal 75 W Xe OF 6263 66150 68806 68805 Universal 58705 Universal 150 W Xe 6253 66151 68806 68805 Universal 88705 Universal 150 W Xe UV 6254 66151 68806 68805 Universal 68705 Universal 150 W Xe OF 6255 66151 68806 68805 Universal 68705 Universal 150 W Xe 6256 66152 68806 6
20. entation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Vil WARRANTY AND RETURNS Newport warrants that all goods described in this manual except consumables such as lamps bulbs filters ellipses etc shall be free from defects in material and workmanship Such defects become apparent within the following period 1 All products described here except spare parts one 1 year or 3000 hours of operation whichever comes first after delivery of the goods to the buyer 2 Spare parts ninety 90 days after delivery of goods to the buyer Newport s liability under this warranty is limited to the adjustment repair and or replacement of the defective part s During the above listed warranty period Newport shall provide all materials to accomplish the repaired adjustment repair or replacement Newport shall provide the labor required during the above listed warranty period to adjust repair and or replace the defective goods at no cost to the buyer ONLY IF the defective goods are returned freight prepaid to a Newport designated facility If goods are not returned to Newport and the user chooses to have repairs made at their premises Newport shall provide labor for field adjustment repair and or replacement at prevailing rates for field service on a portal to portal basis Newport shall be relieved of all obligations and liability under this warranty of 1 The user operates th
21. g if you are operating the lamp housing for the first time or changing lamp type DO IT NOW It may save you a lamp Incorrect connection will result in rapid destruction of the lamp 11 Connect the safety interlock cable between the lamp housing and the power supply 12 Connect the fan power cord to a 110 or 220 VAC line Make sure the line select switch is in the appropriate 110 220 V position before plugging the fan in 10 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING TYPICAL TYPICAL TYPICAL XENON MERCURY MERCURY XENON LAMPS LAMPS LAMPS ANODE UP ANODE DOWN ANODE UP Figure 4 Correct operating position for arc lamps 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Figure 5 Arc lamp inside housing 12 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING IV 1 IV 1 1 IV 1 2 IV 1 3 e ADJUSTMENT OF LAMP MIRROR AND LENS General In these housings the spherical mirror behind the lamp creates an inverted arc image that can be placed onto or near the lamp arc to increase the output beam intensity The condensing lens collects radiation from both the arc and the mirror image of the arc The mirror is adjusted wit
22. h respect to the lamp by three knobs smaller located directly behind the mirror on the back of the housing The lamp and mirror in unison are adjusted by a vertical and horizontal adjust knob larger in the same area See Figure 10n page 7 for location CAUTION DO NOT LET THE MIRROR IMAGE OF THE ARC FALL ONTO EITHER ELECTRODE OVERHEATING OF THE LAMP SEALS AND SUBSEQUENT LAMP EXPLOSION MAY RESULT Adjustments Prior to Operation Before ignition roughly adjust the lamp position with the horizontal and vertical adjustment knobs Adjust the lamp so the arc gap lies approximately in the center of the condensing lens This can be seen through the lens if the focusing lever on the lens is full back If you have appropriate safety equipment ignite and warm up the arc lamp per the instructions in the ignitor power supply manual Adjustment During Operation By adjusting the condensing lens focus the output beam so an image of the arc appears on a wall or screen Do not view UV images without safety glasses Adjust the lamp position to center the output in the condenser lens aperture You can place a piece of paper over the condenser output and center the beam on the aperture Rotate the mirror knobs until a bright spot appears alongside the arc See Figure 6 on page 14 This bright spot is a distorted image of the arc Focus the image by rotating all three screws in the same direction concurrently this translates the m
23. irror back or forth when focused you will see an inverted image of the arc about the same size as the arc Place the mirror image over the main direct image as in Figure 7on page 14 or alongside as desired You may need to use iterative adjustments to keep a focused mirror image lt lt lt WARNING gt gt gt YOU CAN SUPERIMPOSE THE TWO IMAGES BUT AVOID REIMAGING THE ARC HOT SPOTS ONTO THE ELECTRODES THIS CAN CAUSE OVERHEATING OF THE LAMP Focus the condensing lens as desired If additional range of adjustment of the condensing lens is desired 13 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING a Remove the condensing lens assembly handle take care to record the orderly assembly of its parts b Slide the inner lens barrel forward or back by hand until another tapped hole appears in the spiral slot c Reassemble the handle into this new hole IV 1 4 Lamp Operation and Cooling These arc lamps should be operated close to their rated power Dropping the power below 8096 of rated can lead to unusual lamp performance eventual instability and shortened life With mercury lamps it can also lead to cooling problems See COOLING on page 15 for more details PO nd i i Lin i 1 1 i i LM ay Figure 6 The electrodes viewed on a screen in front of the condenser The electrodes as viewed on a scree
24. lation in the housing with alcohol or a dilute solution of detergent and water OZONE Shortwave ultraviolet light photolyzes oxygen to produce ozone This is emitted in the cooling air stream of the lamp housing There is no simple way of predicting the ozone concentration or its impact on you e g operation in a small enclosed area may lead to high concentrations Operation of the same system in a large well ventilated laboratory may not be a problem Recommended maximum exposures are typically 0 1 ppm for 8 hours exposure 2 ppm for a 2 hour exposure Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING 11 4 1 5 11 6 A very sensitive nose can detect 0 015 ppm 1 ppm produces a strong and obnoxious odor As a rule of thumb if you can easily smell ozone the level is too high for prolonged exposure Recommendations 1 Use an ozone free lamp unless you need the shortwave UV 2 Operate the system in a large ventilated area 3 Use an Ozone Eater found in our catalog ELECTRICAL SHOCK Line voltage is supplied to the housing to power the fan and elapsed timer Recommendations 1 Keep personnel clear of all exposed terminals 2 Before relamping or working on the system disconnect the input power from the line turn off the power supply and check the power supply voltmeter for zero voltage to be sure that internal capa
25. lly find the best position for your system The F 0 7 Aspherab condensing lenses combine negligible spherical aberration and low F and should be used at focus for critical collimating applications SPHERICAL ABERRATION MARGINAL RAYS CONVERGE 4 PARAXIAL RAYS COLLIMATED a f POINT MARGINAL RAYS SOURCE A CONVERGE WEAKLY COLLIMATED PARAXIAL RAYS DIVERGE WEAKLY p Figure 12 Spherical Aberration The marginal rays and the paraxial rays are collimated when the point source is at the paraxial focus and the plano surface of the lens faces the point source 20 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING V 4 2 V 5 Chromatic Aberration The term chromatic aberration describes the variation of lens focal length with color Figure 13 This variation is due to the change in lens index of refraction n with wavelength As the wavelength goes up n goes down and the focal length increases This causes problems in producing multi wavelength collimated beams but is usually a second order effect compared with source and spherical aberration limitations Chromatic aberration usually becomes more important when UV wavelengths are to be collimated The reduction in focal length f for a fused silica lens from the visible value off to 0 91 f at 250 nm may require a change of lens for optimum performance Contact New
26. n in front of the condenser lens are inverted right The reflector image as a screen left is doubly inverted so the anode of a xenon or mercury xenon lamp appears on top Figure 7 Correctly positioned reflector Correctly positioned reflector overlays the inverted arc image on the arc gap The image is the same size as the arc itself 14 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING IV 2 COOLING IV 2 1 IV 2 2 Xenon and Mercury Xenon Lamps Xenon and mercury xenon lamps are not sensitive to cooling The fan ensures that the lamp terminals and housing skin are at safe temperatures You can operate 75 W xenon lamps with the fan turned off but not higher rated lamps Mercury Lamps Mercury lamps include a small amount of mercury and one of the inert gases as inert starter gas The lamp starts as an inert gas arc lamp and then mercury becomes vaporized Initially the operating voltage is low and the current high characteristics of an inert gas arc As the mercury vaporizes it starts to dominate the discharge The arc voltage increases and the current drops to the correct operating level Sometimes there will also be a sudden change in operating voltage as the arc position moves towards the end of the warm up phase The final operating conditions of a mercury arc lamp and how the lamp warms up to these conditions depe
27. nd critically on the cooling of the lamp If the lamp is overcooled it will take a long time to warm up and will run at higher current and lower voltage than it should The light output and lamp life will be reduced Note that these housings have a thermostat that prevents the fan from switching on until the lamp warms up This thermostat speeds warm up but does not prevent overcooling If the lamp is undercooled the lamp will warm up quickly but excessive temperature can damage the lamp seals and lead to destruction The operating current and voltage of an undercooled lamp are similar to those of a properly cooled lamp The thermal interlock in these housings prevents undercooled operation Make sure the interlock is connected These lamp housings are designed to operate a variety of lamps in normal laboratory ambient Mercury lamps from different manufacturers differ somewhat in their operating characteristics and 100 W mercury lamps have different requirements from 200 W lamps With the fan running it is possible that a low wattage mercury lamp will be overcooled and stabilize at lower voltage and higher current than the optimum values Check that your mercury lamp is operating at the rated values If you are in doubt unplug the fan for a few minutes and monitor the current andlor voltage on the power supply The lamp current should not decrease by more than 0 2 A If it does the lamp is probably overcooled For proper operation you should a
28. ning goods under the terms and conditions of the above described warranty INSURANCE Persons receiving goods for demonstrations demo loan temporary use or in any manner in which title is not transferred from Newport shall assume full responsibility for any and all damage while in their care custody and control If damage occurs unrelated to the proper and warranted use and performance of the goods recipient of the goods accepts full responsibility for restoring the goods to their condition upon original delivery and for assuming all costs and charges RETURNS Before returning equipment to Newport for repair please call the Customer Service Department at 203 377 8282 Have your purchase order number available before calling Newport The Customer Service Representative will give you a Return Material Authorization number RMA Having an RMA will shorten the time required for repair because it ensures that your equipment will be properly processed Write the RMA on the returned equipment s box Equipment returned without a RMA may be rejected by the Newport Receiving Department Equipment returned under warranty will be returned with no charge for the repair or shipping Newport will notify you of any repairs not covered by the warranty with the cost of the repair before starting the work Please return equipment in the original or equivalent packaging You will be responsible for damage incurred from inadequate packaging if
29. port for details Figure 13 Chromatic aberration Chromatic aberration different wavelengths are focused at different points HOW DO YOU POSITION THE CONDENSER TO GET A COLLIMATED BEAM You should image the arc on the most distant wall in your laboratory remembering appropriate safety measures to get close to the collimation position You can then move the lens barrel in a small amount for best collimation If your wall is 2 meters away a 1 3 mm adjustment is required For 3 m and 4 m the corresponding numbers are 0 8 and 0 6 mm 21 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Vi TROUBLE SHOOTING VI 1 INTRODUCTION This section deals with procedures to follow if you encounter specific difficulties in operating these Lamp Housings Additional details for repairing the Lamp Housing circuitry are available from Newport but in general we do not advise attempting to work on the circuitry VI 2 PROBLEMS Lamp will not light after several repeated presses of the lamp start button on the power supply 1 The most common problem experienced when using these Lamp Housings is difficulty in starting the lamp The problem may be in the Lamp Housing in the Power Supply in the Ignitor or with the lamp The following procedures should help you identify the problem area If you cannot locate the source of the problem and do not
30. rations 17 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING V 1 COLLIMATED BEAMS The usual concept of a collimated beam is a parallel cylinder of light If the intensity is the same anywhere across a section of the cylinder the beam is uniform Unfortunately there is no source of a uniform perfectly collimated beam Even expensive laser sources have some residual divergence in the limit governed by the laws of diffraction and they usually have non uniform though sometimes known intensity distributions Arc lamp sources with an ideal condenser lens in the collimating position produce beams which depend on the source size and intensity distribution A pinhole source at the focus of an ideal lens produces a beam that is close to the ideal collimated beam In we show a second pinhole source a distance d from the first Figure 9 Collimated Beams For most arc sources the divergence in one plane is not the same as that in the orthogonal plane The beam from the second pinhole will also be collimated but at an angle arctan d F with the first Any extended source can be thought of as a whole set of touching pinholes The beam after the lens is the sum of all the beams from all the pinholes It will contain rays with angles up to DIF where D is the largest dimension of the source The beam will have a divergence which depends on the s
31. rt or the representative from whom this equipment was purchased Rev 7 27 05 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Vi VII TABLE OF CONTENTS INTRODUCTION vavisstucs ssiccticn inasin EEEE RAE E A AAEE NE ORE RETE EEE ERE REENE ER 1 SIBI Aadengahw icc tes sE A NEE N A E A AE E OE 3 WT Wie m a AEE RENSE RE REER A ESEE REE 3 I LAMP EXPLOSION RE 3 IEE E OZONE E EA T E NEA NA 3 IE ELEGTRICAL SHOCK m 4 TES EM E E A AEE E A EEE AA EA 4 WS age a A EAEE EEE REE A 4 GENERAL DESCRIPTION oniinn na e EE A EENE 5 Hl 4 LAMP AND REFLECTOR ADJUSTMENTS 0 cccccccecssceeesseeeeesesaeeeesssaeeeeesaeeeessseesessaaes 5 IE LaeseBlcm 5 Il 3 SAFETY AND MONITORING FEATURES sssessssseeeeeeene nennen nnne nnns 5 l4 HOUSINGS WITHOUT CONDENSING LENSES sse 6 IN MIOUINTIN Giisees rM 6 LAMP INSTALLATION AND INITIAL OPERATION esses nnne nnns 10 IV 1 ADJUSTMENT OF LAMP MIRROR AND LENS essere enne 13 PAEUMECTIJCHRERMR HE 13 IV 1 2 Adjustments Prior to Operation sssssesesssseseeeeeeenennene nnne nnne enne 13 IV 1 3 Adjustment During Operation esseeeeenenennenennnee nennen nennen 13 IV 1 4 Lamp Operation and Cooling ssseeeeeenennennenen nennen nene 14 aMeeeoBcum
32. s imaging and provides the formulae As the condenser lens is moved out the image moves in and becomes smaller As already indicated the lens collects less light as it is moved away from the arc Additionally the convergence angle of the beam goes up as the image becomes smaller This is not usually important for irradiance of a surface but can be significant if the image is on the slit of a monochromator optical fiber or other optical system with limited acceptance angle We normally use a secondary focusing lens to maximize the light through a slit or into a fiber optic Figure 11 shows the higher convergence produced when creating a small arc image SOURCE F DEFINES SMALLER IMAGE ANGULAR COLLECTION BUT LARGE FROM SOURCE beue 1 imas Figure 11 A source focused to a smaller image 19 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING V 4 V 4 1 REAL LENSES The condenser lenses are intended for efficient light collection They operate at low F s As a result the single element F 0 85 and F 1 lenses suffer from severe aberrations particularly spherical aberration The doublet F 1 5 lens is somewhat better while the F 0 7 Aspherabs are almost free from spherical aberration Note that all the lenses perform best while collimating the light from the source Spherical Aberration This aberration results from the fact that the
33. to open and ignition problems from high humidity Contact Newport representative for more information if operating outside the suggested range Section IV 2 describe the use of a baffle for some lamps to prevent overcooling Overheating due to blocking of the cooling vents or an inoperative fan activates a thermostat interlock The cooling fan can be operated on 110 or 220 volts AC line The housings have an AC connector that is designed to accept U S style power cords The housings are supplied with a power cord If the power cord is not compatible with your wall socket replace the plug at the end of the power cord Check that the line select switch below the fan is in the appropriate 110 1220 V position before plugging the line cord into the nearest available AC outlet The fan will run as long as power is applied to the housing Ill 3 SAFETY AND MONITORING FEATURES These lamp housings incorporate safety interlocks When used with an Oriel Power Supply the lamp automatically shuts off if the housing door is opened or the housing overheats If you use your own power supply we strongly recommend that you utilize this low voltage interlock system for safety See Figure 2on page 8 or location of interlock Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING 1 4 1 5 HOUSINGS WITHOUT CONDENSING LENSES The 66055 and 66065 Lamp Housings do not hav
34. ttach the baffle plate supplied to the Lamp Housing fan when operating low wattage mercury lamps Table 2 shows which lamps require a baffle and Figure 8 shows the installation To install the baffle plate 1 Remove the four screws holding the finger guard and remove the finger guard 2 Install the Baffle Plate as shown in Figure 8 using the four screws from the finger guard After installing the baffle recheck the current and voltage characteristics This information is available in the catalog 15 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING Table 2 Lamp Housing Baffles Housing Type Lamp Type Operate Fan Use Baffle _ 50W Hg NO NO 50 250 W 100W Hg Yes Yes 200W Hg Yes No 150W Xe Yes No 200 W Hg Yes Yes 2007 500 W 350 W Hg Yes No 500 W Hg Yes No 6x32 5 8 SOCKET HEAD SCREW 6 SPLIT LOCK WASHER 6x32 HEX NUT BAFFLE PLATE 6 CAP NUT Figure 8 Attaching baffle plate 16 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING V LAMP HOUSING OPTICS Four different types of condenser lenses are available on these Lamp Housings You can check the lens type on your housing from the listing 66055 and 66065 Nocondenser 66056 and 66047 Fl1 5 condenser 66057 and 66066 Fli condenser 6605
35. um of the light from all the points on the source Obviously this divergence will depend on the size of the source and the intensity of the various pinholes or points on the source Most arc sources are non uniform and are not circular Therefore the divergence in one plane is not the same as that in the orthogonal plane For most design purposes the arc sizes quoted in Volume 11 and the lens focal length give a good guide to divergence For low divergence beams you should consider the small arc sources and if necessary use our Spatial Filter Assembly Volume 11 18 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com M 66055 UNIVERSAL ARC LAMP HOUSING V 2 V 3 UNIFORMITY Arc sources are not uniform and usually have an intensity peak near one electrode Intensity contours shown in Volume II indicate arc uniformity The collimated beam comes from pinhole sources which are not equally intense in addition to being spatially distributed The result is a smooth non uniform beam with some divergence Figure 10 shows a scan of an optimally collimated beam in the vertical and horizontal planes The source was a 200 W Hg arc INTENSITY ARBITRARY UNITS Figure 10 The collimated output of a 200 W Hg lamp in the vertical and horizontal planes IMAGING THE ARC You can reimage the arc by positioning the condenser further from the arc using the focusing lever Volume Ill describe
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