Users manual - LOCTITE Equipment
Contents
1. 7 3 3 TV CHARACTERISTICS r aa 7 4 5 7 4 1 SPACE E E E TS 7 4 2 CONNECTION 9 5 OPERATING THE UNIT 9 5 1 INSERTING AND REMOVING THE LIGHT GUIDES c0cssssesssesssesssssssesssssssssssseesssseseseseessesessesscesssseseeeeeeees 9 5 2 POWERING chee tet sets Shoal 9 5 3 ADJUSTING DUAL WAND FOR MAXIMUM 10 5 4 USING FOOT SWITCH REMOTE DEVICE sssesesesesesssssssssscssssssssesssessessssssessessssseseessssessseessessesseseessees 1 6 CARE AND 12 6 1 REPLACING THE LAMP MODULE 12 6 2 CHANGING THE OPTICAL 14 REPLACEMENT PROCEDURE Sai sccciscsscssscadiseveccssvsenscestsntososesessseusdecessengsoseeosesscensassodsoccdedensceseesesecgbeseasosessseecbuasees 14 7 7 24 42. 42753 anvi 8 2 Pin Connections 8 3 Replacement Parts and Accessories Loctite Part Number Description 98451 Replacement Lamp Module 97326 Single End Light Guide 5 mm x 1M 97328 Dual Ended Light Guide 3 mm x 1M 98543 Single Light Guide 5 mm x 1 5M 984770 Fan Filter Element Quantity 5 97210 UV Safety Glasses 986051 Foot Switch Assembly 1079258 Loctite 98720 UV Spot Radiometer 951639 Dual Wand Adapter Kit 967056 Lamp Ignitor 967057 Lamp Ballast 1116644 Switching Power Supply 9 Warranty Henkel expressly warrants that all products referred to this Instruction Manual for the UV Curing Wand System hereafter called Product shall be free from defects in materials and workmanship Liability for Henkel shall be limited as its option to replacing those Products which are shown to be defective in either materials or workmanship or to credit the purchaser the amount of the purchase price thereof plus freight and insurance charges paid therefore by the user The purchaser s sole and exclusive remedy for breach of warranty shall be such replacement or credit A claim of defect in materials or workmanship in any Product shall be allowed only when it is submitted in writing within one month after discovery of the defect or after the time the defect should reasonably have been discovered and in any event within
3. LOGTITE EQUIPMENT Operation Manual LOCTITE ZETA 7760 Exposure Time Timed TIMER LT4H Manual A x A Warning UV Energy is transmitted from the end of the light guide Protective eyewear equipped with side shields are required that meet ANSI Z80 3 amp Z87 1 Certification Lamp On Lamp Hours HOURS CURTIS Spare Components P N Description 98451 Lamp amp Reflector 97326 Single Light Guide 1M 97328 Dual Light Guide 1M 98543 Single Light Guide 1 5M Item No 98450 Loctite Zeta 7760 UV Curing Wand System Part Number 98450 TABLE OF CONTENTS 1 PLEASE OBSERVE THE 0400 0 3 1 1 EMPHASIZED SECTIONS aot aS 3 1 2 ITEMS S UPPLIED E EAE S E ES EE EE SEE E ESA SEEE AEE 3 1 3 FOR OUR SABET E ice oss 3 1 4 FIELD OF APPLICATION INTENDED USAGE scccsesscecesssececssseececeeeecsesaececsesaeeecaeeecssesaeeecneeeeeesseeecneaaees 4 2 DESCR P lO 4 2 1 THEORY OF OPERATION 4 2 2 OPERATING ELEMENTS AND CONNECTIONS REFERS TO FIGURE 1 0 00 000 0 0 0000000 1 5 3 TECHNICAL DA TA 5 7 3 1 ENERGY REQUIREMENTS 7 3 2 TOIMIENSIONS aot
4. Exact output measurement is dependent on the brand and calibration method of the meter used as well as the condition and straightness of the light guide 7760 UV OUTPUT SPECTRUM 240 265 290 315 340 365 390 415 Wavelength nanometers 4 Installation 4 1 Space Requirements A space of 12 wide x 16 deep x 9 height is required It is important to have at least 8 inches of space behind the unit to insure proper airflow The Loctite ZETA 7760 UV Curing Wand System only needs to be connected to a 120V 60Hz outlet to operate Caution Do not block the intake and exhaust fans located on the back of the housing Caution The unit should always be operated with the rubber support feet resting on a flat surface Do not operate with the unit resting on its side or at an angle greater than 15 degrees front to back 4 1 Lamp Installation IMPORTANT NOTICE THE CURING LAMP MUST BE INSTALLED IN THE UNIT BEFORE TURNING THE POWER ON THE CURING LAMP IS PACKAGED INSIDE OF THE UNIT Lamp Retainer Wire Anode Connection Cathode Connection Ceramic Hub saad 1 J Lamp Reflector Caution Do not touch the inside surface of the lamp reflector or the lamp Contaminants from hands will create hot spots and cause the module to fail prematurely If either surface is accidentally touched carefully wipe with a clean soft cloth and isopropyl alcohol 1 Make sure the unit is unpl
5. 2 years after the delivery of the Products to the purchaser This warranty does not apply to perishable items such as fuses and fan filters The lamp is fully warranted for 500 hours of operation for failure to ignite The lamp is also warranted to produce 50 of the minimum rated initial output at 500 hours of operating time when measured using an in calibration Loctite 98720 UV Spot Radiometer and a new Loctite 5mm x 1000mm lightguide in a fully straight orientation No such claim shall be allowed in respect of products which have been neglected or improperly stored transported handled installed connected operated used or maintained In the event of unauthorized modification of the Products including where products parts or attachments for use in connection with the Products are available from Henkel the use of products parts or attachments which are not manufactured by Henkel no claim shall be allowed No Products shall be returned to Henkel for any reason without prior written approval from Henkel Products shall be returned freight prepaid in accordance with instructions from Henkel NO WARRANTY IS EXTENDED TO ANY EQUIPMENT WHICH HAS BEEN ALTERED MISUSED NEGLECTED OR DAMAGED BY ACCIDENT OR IF THE SYSTEM USED TO DISPENSE ANY LIQUID MATERIAL OTHER THAN HENKEL PRODUCTS EXCEPT FOR THE EXPRESS WARRANTY CONTAINED IN THIS SECTION HENKEL MAKES NO WARRANTY OF ANY KIND WHATSOEVER EXPRESS OR IMPLIED WITH RESPECT TO THE PRODUCTS ALL
6. WARRANTIES OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND OTHER WARRANTIES OF WHATEVER KIND INCLUDING AGAINST PATENT OR TRADEMARK INFRINGEMENT ARE HEREBY DISCLAIMED BY HENKEL AND WAIVED BY THE PURCHASER THIS SECTION SETS FORTH EXCLUSIVELY ALL OF LIABILITY FOR HENKEL TO THE PURCHASER IN CONTRACT IN TORT OR OTHERWISE IN THE EVENT OF DEFECTIVE PRODUCTS WITHOUT LIMITATION OF THE FOREGOING TO THE FULLEST EXTENT POSSIBLE UNDER APPLICABLE LAWS HENKEL EXPRESSLY DISCLAIMS ANY LIABILITY WHATSOEVER FOR ANY DAMAGES INCURRED DIRECTLY OR INDIRECTLY IN CONNECTION WITH THE SALE OR USE OF OR OTHERWISE IN CONNECTION WITH THE PRODUCTS INCLUDING WITHOUT LIMITATION LOSS OF PROFITS AND SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES WHETHER CAUSED BY NEGLIGENCE FROM HENKEL OR OTHERWISE Henkel Corporation Henkel Canada Corporation One Henkel Way 2225 Meadowpine Boulevard Rocky Hill CT 06067 3910 Mississauga Ontario L5N 7P2 Henkel Corporation Henkel Ltda Automotive Metals HQ Rua Karl Huller 136 Jd 32100 Stephenson Hwy Canhema 09941 410 Madison Heights MI 48071 Diadema SP Brazil Henkel Capital S A de C V Calzada de la Viga s n Fracc Los Laureles Loc Tulpetlac C P 55090 Ecatepac de Morelos Edo de M xico www loctite com Loctite is a trademark of Henkel Corporation U S A Copyright 2005 Henkel Corporation All rights reserved Data in this operation manual is subject to change without notice Manual P N 98889
7. 4442 020 2 4 270 0420707 01 0 1 72 0 0 0 0000 15 8 16 8 1 WIRING DIAGRAM 16 8 2 tae ad abe 17 8 3 REPLACEMENT PARTS AND 655 8 001 1 17 9 18 1 Please Observe the Following 1 1 Emphasized Sections WARNING Refers to safety regulations and required measures that protect the operator or other persons from injury or danger to life Caution Emphasizes what must be done or avoided so that the unit or other property is not damaged Notice 1 2 gt BP Gives recommendations for better handling of the unit during operation or adjustment as well as for service activities Items Supplied 1 ZETA 7760 UV Curing Wand System 1 UV lamp reflector assembly Customer to Install 1 Pair of UV protective glasses 1 Foot switch 1 Users manual 1 Power cord For Your Safety For safe and successful operation of the unit read these instructions completely If the instructions are not observed the manufacturer can assume no responsibility Be sure to retain this manual for future reference WAR
8. 5 Rev J Date 08 2009
9. NING Always wear the included UV safety glasses or glasses that conform to ANSI Z87 1 CSA Z94 3 when operating the unit WARNING Always cover hands face and other parts of the body that may be exposed to UV light WARNING Never look into the end of the light guide WARNING Never open the shutter mechanism without the light guide installed WARNING Never remove the cover of the unit without first switching the power off and unplugging the power cord WARNING Damage to the power cord or the housing can result in contact with live electrical parts Check the power cord and housing before each use If the power cord or unit is damaged do not operate The unit may be repaired only by a Loctite authorized service technician 1 Please Observe Following continued Caution Never turn the unit on without the lamp connected to the power supply Caution The energy emitted from the end of the light guide can heat any surface that it is directed at Care must be taken to determine the proper offset distance and exposure time Caution Turning the lamp on and off frequently will cause the UV output of the lamp to decline at a faster rate It is recommended that the unit be left on during breaks and short down times Caution Avoid making sharp bends in the light guide as this will cause a loss of UV energy or possibly cause permanent damage To prevent permanent damage the minimum bend radii are 2 4 in
10. On Lamp Hours Warning UV Energy is transmitted from the end of the A PONTS light guide Protective eyewear equipped with side shields eZ 4 are required that meet ANSI Z80 3 amp Z87 1 Certification 9 CURTIS Spare Components Description Lamp amp Reflector Single Light Guide 1M Dual Light Guide 1M 98543 Single Light Guide 1 5M Item No 98450 Objective Balance the UV output from the two light guides of Loctite P N 97328 Tools Needed 3 32 inch hex key Loctite 98720 UV Spot Radiometer P N 1079258 5 Operating the Unit continued Setup 1 w Install the collar assembly 951639 over the part of the light guide receptacle that protrudes from the front of the unit Rotate the collar assembly until the scribed line is in the 12 o clock position Use the set screw to secure the collar in that position Insert the input end of the light guide into the light guide receptacle collar assembly pushing it as far forward as it will go Tighten the set screw on to the light guide Turn on electric power to unit Set shutter timer to 2 seconds Insert one of the light guide ends into a Loctite 98720 UV Spot Radiometer P N 079258 Press the radiometer start switch Actuate foot switch to open shutter Release the radiometer start switch while the shutter is still opened Read and record the radiometer reading 10 Position the second light guide in the radiometer 11 Press th
11. ace light guide 8 Documentation 4 098 HOLIMS 1003 4 HOLIMS woLoaTas 0 awanwin H SIVN 3 6 TaNvd gt 4 161 9029 018941 7 9 C 94 Oave ri ass9 B 6 gt 200 8078 405 TIIMAINOH on BOON ESN G37 OL 2 18 4 NO GaLNNOW go 100 NG SHZOIS mses le 6001 8590 Wo 3QONY 101 aans nide OL 51710 06 10 608 0 Hos eSZSNi l suyo 7 0 r SLIOA 60932 2 SOONE gt swyo 2 N 5 wi X04 50 HOLIMS 13538 ual 4 oz Lo SILHNO 095505054 INGON N SNOLLOSNNOO an any sissvHo a gt 1 HOLIMS JHL OL 103 see SISSVHO annone 38 OSIY Nez 5185789 16 3 5 NO BION 5 I es 1 5 15 1 9
12. amp reflector or the lamp Contaminants from hands will create hot spots and cause the module to fail prematurely If either are accidentally touched carefully wipe them with a clean soft cloth and isopropyl alcohol Switch the power off and unplug the unit Allow several minutes for the lamp to cool Remove the four screws from the sides of the housing and lift off the cover Remove the sheet metal shroud that encases the lamp Disconnect the lamp leads by separating the Male Female connector Flip the wire retainer over the lamp holder To remove the lamp module grasp the white ceramic hub and carefully pull back and lift up at the same time Install the new lamp module and flip retainer back over the lamp holder 9 Reconnect the power leads 6 1 Replacing the Lamp Module continued 10 The bare power lead attachment to the front of the reflector should be approximately in the twelve o clock position If it is not grasp the ceramic hub of the lamp pull back slightly and rotate until the lead is between the two white plastic insulators 11 Replace the lamp shroud and the enclosure cover 12 Press the lamp hour reset switch to set the hour meter to zero I Notice Step 11 should only be done when a new lamp is installed A WARNING The UV lamp used in this unit contains a very small amount of mercury Disposal of lamps should be done in accordance with state and local regulations Lamp Changeo
13. ces are touched or become dirty use a clean soft wiper and isopropyl alcohol to remove the contaminants 7 Troubleshooting Type of Malfunction Possible Causes Corrections Power does not come on Lamp does not light Power comes on but light is not emitted from the light guide The shutter mechanism makes no noise when the footswitch is engaged All system functions appear to be operating but the product does not cure completely If a radiometer is used to monitor the UV output the power is low No voltage present Defective fuse Defective line cord Lamp leads are not connected Defective power supply Lamp failure Footswitch is not plugged in Defective footswitch Defective shutter mechanism Faulty power supply or supply connection UV output has declined due to normal lamp aging End of light guide has an accumulation of product or other contaminants Light guide is not fully inserted in receptacle Light guide has exceeded its useful life Check wall circuit Replace fuse Replace Call 800 562 8483 for technical assistance Replace lamp module Check footswitch connection Call 800 562 8483 for technical assistance Call 800 562 8483 for technical assistance Call 800 562 8483 for technical assistance Replace lamp module Clean light guide with soft cloth and isopropyl alcohol Check light guide connection Repl
14. ch is on the lower left of the rear panel The green LED on the front panel will come on to confirm that the lamp has ignited 3 Allow approximately five minutes for the lamp to reach full power 4 Set the operating mode selector switch to timed or manual 5 For manual operation engage the footswitch to start UV exposure and hold until the curing cycle is complete When the footswitch is released the exposure will end immediately For timed operation use the keys directly below the numbers on the display to set the desired exposure time Momentarily engage the footswitch to start the cycle The UV exposure will begin immediately and continue until the system times out 6 UV exposure cycles may be initiated by using an externally operated device such as a PLC controlled relay in place of the footswitch Notice Avoid shutting the main power off for brief periods of time Frequent start ups will cause the lamp to decay at an accelerated rate If the system is shut down wait a minimum of ten minutes before restarting Once the lamp is ignited allow it to operate for a minimum of fifteen minutes before turning it off 53 Adjusting Dual Wand for Maximum Output Adapter Hub Scribe Line Set Screw Locks The Balancing Adapter To The Units Base The Light Guide In nee Position After Balancing 0 31 This Set Screw Locks 7 ZETA 1760 Manual Lamp
15. ches for a single light guide and 1 6 inches for a dual light guide 14 Field of Application Intended Usage This Loctite ZETA 7760 UV Curing Wand System is designed for use with Loctite products that cure when exposed to ultraviolet light produced by the unit The UV energy is directed towards the product through a liquid filled light guide that is ordered separately Several configurations of light guides are available from Loctite including single and dual ended types The unit is also capable of interfacing with an external relay or PLC circuit 2 Description 2 1 Theory of Operation When the unit is switched on electrical power is immediately supplied to the lamp and ignition should occur within several seconds As soon as the lamp ignites the green Lamp On indicator located on the front panel will come on Also an internal relay will change state making a closure across pins three and four of the footswitch connector located on the rear panel of the unit It will take several minutes for the lamp to reach full power Curing takes place when the shutter is opened allowing UV light to be directed from the end of the liquid filled light guide to the adhesive The curing parameters UV irradiance and exposure time must be determined before use The UV irradiance the strength of the UV light at the adhesive surface can be varied by adjusting the distance of the light guide from the bond If the light guide is moved to wi
16. e radiometer start switch 12 Actuate foot switch to open shutter 13 Release the radiometer start switch while the shutter is still opened 14 Read and record the radiometer reading 15 Compare the two radiometer readings 12271 6 If the lower reading is equal to or greater than 90 of the higher reading the dual wand is balanced 17 If the lower reading is less than 90 of the higher reading loosen the set screw and rotate the collar a small increment around the light guide receptacle Use the set screw to secure the collar in that position 18 Take and compare another set of radiometer readings 19 Continue until the lower reading is equal to or greater than 90 of the higher reading 20 Tighten set screw to lock the input end of the dual wand in position Notice If a radiometer is not available it is recommended that Loctite Service be contacted at 1 800 LOCTITE 1 800 562 8483 to insure optimum performance when installing a new dual ended light guide 5 4 Using Foot Switch Remote Device The ZETA 7760 can also be actuated using a foot switch or by external devices The foot switch connection is made up of a 9 pin D connector Making dry contact relay closure across pins and 9 can actuate the unit 6 Care Maintenance 2 Notice It is recommended that the UV output from the lamp be monitored regularly using a Loctite 98720 UV Spot Radiometer P N 1079258 If a radiometer is not us
17. ed to monitor the lamp it is recommended that the lamp be replaced when the hour meter located on the front panel indicates 1 000 hours of operating time has elapsed It is normal for the lamp output to slowly decline over operating time however the effective life of the lamp will decrease significantly faster if it is turned on and off frequently Caution It is recommended that the end of the light guide be positioned no closer than inch from the Loctite product being cured The heat transmitted by the lamp can adversely affect the properties of the cured product or possibly cause damaged to the part surface gt Notice Vapors from some products may gradually accumulate on the end of the light guide reducing the UV output It should be inspected regularly and cleaned as necessary using isopropyl alcohol and a soft clean cloth Caution Avoid placing sharp bends in the light guide This reduces the UV output and may permanently damage the light guide If the light guide is mounted on a fixture secure it by the metal exit fitting and not the flexible plastic section Caution Be sure to remove the plastic end caps before attempting to use the lightguide I Notice The intake and exhaust fan filter elements should be replaced as needed to insure proper cooling of the power supply and UV lamp assembly They should be inspected routinely 11 Replacing the Lamp Module EA Caution Do not touch the inside surface of the l
18. g UV Energy is transmitted from the end of the HOURS light guide Protective eyewear equipped with side shields are required that meet ANSI 280 3 amp Z87 1 Certification CURTIS Spare Components Description 98451 Lamp amp Reflector 97326 Single Light Guide 1M 97328 Dual Light Guide 1M 98543 Single Light Guide 1 5M Item No 98450 20677 Rocky Hill Connecticut 06067 U S A Zeta 7760 Wand System Input 90 264 50 60 Hz Loctite Item No 98450 3 0 120 VAC 1 7 240 Serial No 4CWA 01 Lamp 200 Watt Fuse 4 Amp 250 V Made in U S A Foot 4 Switch 77 Connection Fuse Holder 2 Power a 2 Switch 3 Lim 0 Warning Disconnect and Refer to Inlet J UN Manual Before Servicing Unt Module Figure 1 FOR SPARE PARTS MANUALS REPAIRS OR TECHNICAL ASSISTANCE Visit us at equipment loctite com or call Henkel Corp USA 1 860 571 5174 Germany 49 89 0268 0 Singapore 65 6482 3881 Hour Meter Reset 8 5 16 3 Technical Data 31 Energy Requirements Input Voltage Ranges 90 132 and 180 264 VAC Input frequency Range 47 to 63 Hz Auxiliary Output Voltage 27 volts DC nominal Main fuse located in power module in rear of unit 4A 250V 5mm 32 Dimensions Housing Approximately 11 5 inch W x 13 5 inch D x 8 4 inch H Weight Approximately 18 pounds 3 3 UV Output Characteristics Initial UV output 16 to 20 W cm typical
19. in D connector for foot switch or other external switch Light Guide Receptacle Is used to retain the light guide Digital Exposure Timer Controls the period of time the shutter is opened The UV time is set by pressing the buttons located directly under the LCD which indicates seconds The manual timed selector switch must be set to timed When the foot switch is pressed the shutter mechanism will open for the indicated time and the timer will begin counting down When the unit times out the shutter will close and the LCD will indicate the original pre set time interval Lamp Hour Meter The hour meter indicates the cumulative time that the lamp has been ON Mode Selector Manual Timed When set to manual the UV light is passed through the light guide for as long as the foot switch is depressed In the timed mode the timer s LCD display indicates exposure time and the cycle is initiated when the foot switch is momentarily engaged 9 Hour Meter Reset Use switch to reset the hour meter to zero after installing a new lamp module 10 Lamp On Indicator The lamp will ignite when the main power is switched on The green lamp on indicator located on the front panel will light to confirm that the lamp is operating 2 Description continued 11 1 2 LOCTITE ZETA 7760 Exposure Time TIMER Light Guide ey Receptacle 2 A gt Lamp Hours Warnin
20. n internal relay closure connected to pins three and four of the footswitch connector provides conformation that the curing lamp is on When the lamp is not on an open circuit exists across pins three and four 5 Operating the Unit 5 1 Inserting and Removing the Light Guides Caution Be sure to remove the plastic end caps before attempting to use the light guide Caution If the free end of the light guide is secured at a fixed location sharp bends should be avoided since this causes a decrease in UV power Caution Never pull on the jacketing portion of the light guide During installation or removal grasp the light guide on the strain relief nearest the input end of the light guide e Installing single light guide Insert the large end of single light guide into the light guide receptacle located on the left side of the front panel Push light guide firmly until it is fully engaged Installing dual light guide Insert the dual wand light guide into the light receptacle and rotate the collar assembly 951639 so that the scribed line on the collar is in the 12 o clock position See section 5 3 Adjusting Wand for Maximum Output L Notice 5 2 Da It is important that the rotational position of a dual light guide be set to maximize the UV output for each wand This setting is specific to each curing unit and light guide See section 5 3 Adjusting Dual Wand Powering Up Switch the main power ON The power swit
21. thin 1 2 inch of the adhesive surface vapors from the curing process may build up on the end of the light guide reducing the UV intensity The UV exposure time required to complete the curing process depends primarily on the UV irradiance and the properties of the adhesive product The timed exposure cycle starts by momentarily engaging the footswitch or when an externally operated device such as a PLC makes a relay closure across pins 1 and 9 of the nine pin foot switch connection on the rear panel In the manual operating mode the shutter remains open for as long as the footswitch or alternate external device maintains contact between pins 1 and 9 2 Description continued The hour meter located on the front panel records the total hours of operation accumulated by the lamp UV lamps undergo a gradual reduction in UV output over time and it is recommended that the lamp output be monitored on a regular basis Frequently turning the power on and off will increase the rate that the lamp degrades therefore it is recommended that the unit be left on during short work breaks such as lunch and other idle periods 3 Notice The hour meter should only be reset when new lamp is installed 2 2 Operating Elements and Connections refers to Figure 1 1 Power Inlet Module Connect line cord to power inlet module Power Fuse Holder Fuse is located in the power module 3 Power Switch Foot Switch Connection Standard 9 p
22. ugged 2 Remove the four screws from the sides of the housing and lift off the cover 3 Remove the sheet metal shroud that encases the lamp 4 Flip the swivel section of the lamp retainer wire forward 5 Grasp the lamp assembly by the white ceramic hub and pull back on the wire retainer until the reflector fits into the counter bore in the lamp holding plate 6 Flip swivel retainer back over the lamp holder 7 Connect the power leads 8 The power lead attachment connected to the front of the reflector should be approximately in the twelve o clock position If it is not grasp the ceramic hub of the lamp pull back slightly and rotate until the lead is at twelve clock 9 Replace the lamp shroud and the enclosure cover 10 Press the lamp hour reset switch to set the hour meter to zero ZS Notice Step 10 should only be done when a new lamp is installed 4 2 Connections A WARNING Make sure the power switch is OFF and the unit is unplugged before proceeding Plug the power cord into the power module located at the bottom left of the rear panel Plug the cord into the electrical utility outlet Insert the light guide into the receptacle located on the left side of the front panel until it is fully engaged Plug the footswitch into the nine pin D sub connector located on the rear panel Or if the unit is being operated from an external processor a closure across pins one and nine is required to actuate the shutter A
23. ver Components Lamp Retainer Wire Anode Connection Cathode Connection Ceramic Hub Lamp Lamp Reflector 6 2 Changing The Optical Filter The 7760 uses a special optical filter designed to reduce heat It is retained by two clips and thumbscrews in front of the light receiving end of the light guide The filter that comes with the unit P N 98599 is designed to allow the use of the standard light guides This arrangement will transmit the wavelengths needed to obtain excellent surface cure and cure depth in most applications In cases where it is difficult to achieve dry to the touch surfaces an alternate filter P N 98598 is designed to improve the surface cure ability P N 98598 must be used with the extended range light guides Replacement Procedure 1 ascarid Oy Unplug the unit and remove the cover Remove the heat shroud exposing the lamp and optical staging Remove the light guide from the unit and turn the unit onto its front side Looking down at the light guide entrance hole loosen the two thumbscrews securing the filter Swing the two retaining clips out of the grooves allowing removal of the filter Set the unit back onto its feet and the remove the filter from the unit Set the unit back on its front side and insert the new filter into the hole Replace the retaining clips and thumbscrews Caution Avoid touching the surfaces of the filter by holding the edges only If the surfa
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