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Flame Burner

1. Check the burner head If there are deposits along the slot clean the burner head procedure page 3 11 Reinstall the burner head procedure page 2 9 Switch on and set up the spectrometer system see Setting up the system for analyses using the flame technique page 2 5 Ignite the flame procedure page 2 21 Extinguish the flame properly procedure page 3 7 2 23 Preparing for Analyses 2 24 0993 5257 Burner System Maintenance Procedures Contents page se eon pts rr eds 3 3 Checklist for regular maintenance tasks 2 2 1 ete Re 3 4 Maintaining the burner system 3 6 Extinguishing the flame 3 7 Disassembling the spray chamber 3 8 Cleaning the burner system 3 11 Reassembling the burner system 3 16 Maintaining the nebulizer seseeseeeeeeeeeee m n eens 3 20 Clearing an obstruction in the nebulizer 2 1 0 eee re 3 21 Removing the neb lizer user adapers UEPRRCAPECCRG Wed Se Osean pe 3 23 Disassembling the nebulizer oooooooooocoror n 324 Cleaning the nebulizer ebe t eR dd Dee ERR ene dd le Raph dee e 3 26 Reassembling the nebulizer 0 1 treni teita nen EE EN e net Ee Eea i 3 26 Installing the nebulizer ji cee sittes k Er RO eE EE EREDE SERES 3 28 Maintaining the dram system 4 4 2955454 5550485044 oe E e ae NEEN ENTENTE EAR A 3 32 Flushing the drain system 3 32 Emptying the drain Vessel 522p pupa pesee ESA EE KEE EE 3 33 Adding water to t
2. Cleaning wire Figure 3 6 Cleaning the nebulizer with a cleaning wire 4 Reattach the nebulizer sample tube to the nebulizer capillary procedure page 3 26 5 Reinstall the nebulizer procedure page 3 28 0993 5257 3 21 Burner System Maintenance 6 Relight the flame and then aspirate pure solvent to rinse the nebulizer 7 Run several calibration solutions to check that characteristic concentration measurements give the expected results The above cleaning procedures are usually sufficient to restore the nebulizer to satisfactory working order If neither of these procedures cures the problem you must disassemble and clean the nebulizer 3 22 0993 5257 Burner System Maintenance Removing the nebulizer 0993 5257 Nebulizer clamp Nebulizer clamping screw Nebulizer Figure 3 7 Removing the nebulizer 1 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Remove the atomizer compartment door procedure page 2 4 Remove the nebulizer from the burner end cap 1 Slacken the nebulizer clamping screw 2 Lift up and hold the nebulizer clamp Very gently rock the nebulizer a few times to make sure that it is not sticking in the end cap 3 Carefully pull the nebulizer out of the end cap 4 Make sure that you remove the venturi O ring with the nebulizer If the O ring remains lodged in the burner end cap u
3. risk f r skador En del r rliga delar p apparaten r tkomliga vid normal anv ndning Se till att h nder kl der eller andra f rem l inte kommer i n rheten av apparatens r rliga delar 0993 5257 6 17 Translations of Warnings 6 18 0993 5257 Index 0993 5257 In 1 In 2 0993 5257 Index A acetylene supply maintaining 3 38 adding water to drain trap 2 19 3 34 atomizer selecting 2 6 atomizer compartment door 2 3 raising and lowering 2 3 removing and refitting 2 4 B burner safety checks 2 20 solvent resistant components 2 17 burner components description 5 6 burner end cap description 5 6 removing 2 15 3 9 replacing 2 17 3 17 burner head changing 2 8 cleaning 3 11 description 5 7 installing 2 9 removing 2 8 slot width 3 12 burner slot clogged 3 11 uneven flame 3 11 burner system cleaning 3 11 design 5 3 how it works 5 4 maintenance 3 6 maintenance checklist 3 4 reassembling 3 16 rinsing 3 7 setting up 2 7 0993 5257 C changing a burner head 2 8 changing the nebulizer 2 10 checklist burner maintenance 3 4 cleaning after aspirating Cu Ag or Hg 3 15 after use of organic solvents 3 14 burner head 3 11 burner system 3 11 drain trap 3 34 nebulizer 3 26 spray chamber 3 14 clearing an obstruction in the neb ulizer 3 21 clogged burner slot 3 11 correct use of the instrument 1 3 customer service 5 D deposits on burner slot 3 11 descriptio
4. Make sure that the air supply is turned on since this provides the hydraulic pressure required to change the atomizers In the File menu click on Change Technique op On the Toolbar click on Technique The Select Technique dialog appears Select the atomizer that you require Flame for the burner system Furnace for the graphite furnace Click on OK The system changes over the atomizers Further information on changing the atomizer is also provided in the Online Help in AA WinLab Note While the atomizers are being changed do not put your hands or other objects into the atomizer compartment 0993 5257 Preparing for Analyses Setting up the burner system 0993 5257 Summary of the procedure 1 Install the correct burner head for the type of flame that you intend to use air acetylene or nitrous oxide acetylene procedure page 2 8 Make sure that the correct nebulizer is installed the standard nebulizer or a corrosion resistant nebulizer procedure page 2 10 If you want to use the flow spoiler make sure that it is correctly installed procedure page 2 15 If you want to use an impact bead make sure that it is correctly installed procedure page 2 15 If you intend to aspirate organic solvents make sure that the correct gasket is fitted in the burner system procedure page 2 17 Perform the safety checks see page 2 20 Ignite the flame procedure page 2 21 Note Correct proc
5. 2 0993 5257 Remove the two screws securing the retaining plate From the inside of the end cap use a small probe to clean or push broken fragments to the outside of the end cap Check the condition of the O rings and replace any that are damaged Refit the retaining plate and screws Burner System Maintenance Reassembling the burner system After you have completed maintenance procedures reassemble the burner system as given below To reassemble the spray chamber Burner head Retaining ring Burner head O ring End cap O ring Burner end cap Milled posts 2 Nebulizer Flow spoiler lower vane in six o clock position Thumbscrews 4 Figure 3 3 Exploded view of the burner system 1 Place the spray chamber back onto the burner carriage 2 Locate the two milled posts into the threaded holes in the carriage and then tighten the two milled posts firmly to secure the spray chamber 3 16 0993 5257 Burner System Maintenance 3 Slide the cleaned flow spoiler fully back into the spray chamber such that one of the vanes is in the six o clock position see page 2 15 Press the center of the flow spoiler with your index finger and push it in until it is firmly seated 4 Check that the burner end cap O ring or gasket is properly seated in the groove inside the end cap and is in good condition If it is not replace it see Burner System Parts and Supplies for the part num
6. 1 solution of methanol in water 0993 5257 3 37 Burner System Maintenance Maintaining the acetylene supply A W5 7 Warning Acetylene Explosion Hazard Acetylene can decompose explosively at pressures higher than 103 kPa 1 03 bar 15 psig Always make sure that the acetylene outlet gauge pressure is below this value 3 38 You should depressurize both the fuel and oxidant gas hoses at the end of the working day or if you are not going to use the instrument for an extended period Close the cylinder valves to avoid the possibility of gas hoses being subjected to the full cylinder pressure in the event that a pressure regulator should fail Acetylene is supplied dissolved in a solvent such as acetone and a small amount of solvent carryover with the acetylene is normal However as tank pressure falls the relative amount of solvent entering the gas stream increases and can give erratic results particularly for elements such as calcium tin chromium molybdenum and others whose sensitivity is highly dependent on the fuel oxidant ratio The pressure drop is not linear with gas removal since the acetylene is dissolved in a solvent and a pressure of 600 kPa 6 bar 85 psig at ambient temperature indicates that the cylinder is nearly empty For this reason replace acetylene cylinders when the cylinder pressure drops to about 600 kPa 6 bar 85 psig Always store and use acetylene cylinders vertically rathe
7. 4 Onthe Toolbar click on Flame The Flame Control window appears 5 Select the oxidant In the Flame Control window click on Air or N20 6 Ignite the flame In the Flame Control window click on Flame On Off The correct procedure to extinguish the flame is described on page 3 7 uv A W3 4 Warning UV Radiation Risk of Eye Damage The flame especially the nitrous oxide acetylene flame may emit UV radiation which can damage your eyes Keep the door closed when the flame is burning unless you need to adjust the burner as described in the user documentation Always wear UV absorbing safety glasses when looking at the flame 0993 5257 2 21 Preparing for Analyses Select an air acetylene flame If you are setting up the burner system If you have installed a different nebulizer cleaned the nebulizer or if the settings on the nebulizer have been altered since it was last used If you are using the flame to heat the QTA cell W5 1 Warning Flashback Hazard Never set up the nebulizer using a nitrous oxide acetylene flame Setup the nebulizer using an air acetylene flame only and make small adjustments slowly Table 2 1 Required Pressures for the Burner Gases Gas Outlet Gauge Pressure kPa bar psig P min P max P min P max P min P max Acetylene 90 100 0 9 1 0 13 0 14 5 C2H3 Air 450 500 4 5 5 0 65 0 72 5 Nitrous oxide 450 500 4 5
8. 5 0 65 0 72 5 N20 e Set the outlet gauge pressure for each gas to a value just below the maximum value Py Always set the same outlet gauge pressure for air and nitrous oxide Never set the outlet gauge pressure to a value exceeding the maximum pressure Pinax W5 7 Warning Acetylene Explosion Hazard Acetylene can decompose explosively at pressures higher than 103 kPa 1 03 bar 15 psig Always make sure that the acetylene outlet gauge pressure is below this value 2 22 0993 5257 Preparing for Analyses Emergency shutdown If a situation arises where you have to shut down the system quickly and you do not have time to carry out the correct procedure you can use the procedure described below Note This procedure is for use in an emergency only Do not use it as a routine shutdown procedure l 2 Switch off the spectrometer at the operational on off switch on the front panel Shut down the gases to the spectrometer at source When you return to the spectrometer proceed as follows to shut down the system properly 3 0993 5257 If you were previously running concentrated salt solutions organic solvents or solutions containing cyanide copper silver or mercury 1 Remove the burner head procedure page 2 8 2 Pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the chamber and the drain system
9. Avant d allumer la flamme r gler correctement le spectrom tre et le br leur et observer toutes les consignes de s curit d crites dans le manuel du spectrom tre Pericolo Gas infiammabili Pericolo di incendio e di esplosione Prima di accendere la fiamma impostate lo spettrometro e il bruciatore in maniera corretta osservando tutte le misure di sicurezza descritte nel manuale dello spettrometro Waarschuwing Brandbare gassen Gevaar voor brand en explosie Voordat de vlam wordt ontstoken moeten de spectrometer en de branderunit op de juiste manier en met inachtneming van de veiligheidsvoorschriften zoals deze in de handleiding van het instrument staan vermeld worden voorbereid Aviso Gases inflam veis perigo de inc ndio e de explos o Antes de acender a chama preparar devidamente o espectr metro e a unidade queimadora respeitando todas as instru es de seguran a referidas no manual do espectr metro Varo Syttyv t kaasut tulipalo ja r j hdysvaara Ennen kuin sytyt t liekin aseta sspektrometri ja poltin oikein ja ota huomioon kaikki spektrometrin k sikirjassa annetut turvaohjeet Varning Br nnbara gaser explosions och brandfara Innan l gan t nds skall spektrometern och br nnarenheten f rberedas enligt anvisningarna i anv ndarmanualen F lj s kerhetsf reskrifterna 0993 5257 6 9 Translations of Warnings A W5 7 Warning Acetylene Explosion Hazard Ac
10. United Kingdom PerkinElmer on the Internet PerkinElmer Ltd http www perkinelmer com Post Office Lane Beaconsfield Bucks HP9 1QA England Phone 44 1494 676161 Fax 44 1494 67 9331 amp 9333 Supplies replacement parts and accessories Supplies replacement parts and accessories can be ordered directly from PerkinElmer using the part numbers quoted in the guides provided with the instrument PerkinElmer s catalog service offers a full selection of high quality supplies To place an order for supplies and many replacement parts request a free catalog or ask for information Ifyou are located within the U S call toll free 1 800 762 4002 8 a m to 8 p m EST Your order will be shipped promptly usually within 24 hours Ifyou are located outside of the U S call your local PerkinElmer sales or service office Ee PerkinElmer instruments PerkinElmer Instruments 761 Main Avenue Norwalk CT 06859 0010 U S A Tel 1 800 762 4000 or 1 203 762 4000 Fax 1 203 762 4228 Internet http www perkinelmer com Part Number 0993 5257 Release 5
11. a test tube brush Make sure that the float moves freely Rinse the assembly well with water Empty the drain vessel procedure page 3 33 Note Dispose of hazardous or corrosive solutions properly and refer to your local safety regulations for proper disposal procedures Place the drain trap assembly back into the drain vessel and screw on the retainer cap 3 35 Burner System Maintenance 3 36 Replacing the drain tube If the drain tube is damaged or extremely dirty you should replace it It is very important that the inner lining of the drain tube is not damaged The replacement procedure is described below 1 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Switch off the spectrometer Empty the drain vessel procedure page 3 33 Note Dispose of hazardous or corrosive solutions properly and refer to your local safety regulations for proper disposal procedures Drain interlock connector Drain fitting Figure 3 16 Replacing the drain tube 4 Slacken the securing rings on the drain interlock connectors at both the burner unit and the drain trap assembly Unplug both connectors Disconnect the drain tube from both the drain trap assembly and the drain outlet on the burner end cap by loosening the clamps on each end of the tube Once the clamps are loosened the tube should easily pull out Remove
12. affiliates Copyright 1998 2000 by affiliates of PerkinElmer LLC Printed in the Federal Republic of Germany Technical Documentation PerkinElmer Bodenseewerk D 88647 Ueberlingen Federal Republic of Germany Contents page Chapter 1 Safety Information Introduction eea aa a e Dia a ola 1 3 Correct use of analytical instruments ooooooo ooo 1 3 Warning markings on the burner system 1 4 Chapter 2 Burner System Preparing for Analyses Atomizer compartment door 2 3 Raising and lowering the door 2 3 Removing and refitting the door 2 4 Setting up the system for analyses using the flame technique 2 5 Selecting the atomizer A UU Ub It RUN buta 2 6 Setting up the burner system a 2 7 Changing a burner head ocre die DeEvEPS 2 8 Changing the nebulizer e a ds 2 10 Flow spoiler and impact bead teen t nent tne e A 2 15 Installing solvent resistant components in the burner 2 17 Adding water to the drain map 2 19 Safety checks ze A SS MUN esas 2 20 Igniting the flame A ii 2 21 Emergency shutdown 3 bites cain ie A Se Bia SiGe id ie 2 23 Chapter 3 Burner System Maintenance Procedures PerkinElmer Service ui A Ai eoe Fees 3 3 Checklist for regular maintenance tasks ooocooocoocooconcco rr 3 4 Maintaining the burner system 3 6 Extinguishing the flames 3 0220 5c ine Sorte eee id ES 3 7 Disassembling the spray chamber 3 8 Cleaning the burner system a ENG EE 3 11 Reassembling the burner system 3
13. bead O rings 0 cece teens 0990 2236 3 O rings for end cap retaining plate o oo 0990 2240 Burner heads 5 cm single slot burner head for nitrous oxide acetylene operation N040 0100 5 cm single slot burner head for air acetylene operation N040 0101 10 cm single slot burner head for air acetylene operation N040 0102 10 cm three slot burner head for air acetylene operation N040 0103 Drain system Drain t be sv gre ERA Men ewe OSES 0250 7987 Parts and Supplies 4 6 Description Part No Nebulizers Standard stainless steel nebulizer ku 0303 0352 Platinum alloy nebulizer kr 0303 0299 includes a platinum alloy capillary assembly and tantalum venturi Corrosion resistant plastic nebulizer kit 0303 0404 Nebulizer supplies O ring kit includes all O rings used with the nebulizer andthe PTFE disk oa cias N930 0065 Sample tube nebulizer capillary tubing 3M 0990 8265 Apiezon grease ube 0303 0405 Cleaning wires pack of cece eee ee 0303 0135 4 Figure 4 2 Components of the nebulizer 0993 5257 Parts and Supplies 0993 5257 Nebulizer components Item Description Part No A Capillary assemblies Stainless steel capillary assembly 0303 0354 Platinum alloy capillary assembly 0303 0433 Plastic capillary assembly with integral sample tube 0303 0402 Pla
14. intente realizar ning n tipo de ajuste sustituci n o reparaci n en este aparato a excepci n de lo descrito en la Documentaci n del Usuario que se adjunta Danger R glages et entretien non autoris s Seul un ing nieur du service apr s vente PerkinElmer ou une personne autoris e et de m me formation sont autoris es intervenir sur l instrument Ne pas essayer d effectuer des r glages des remplacements des r parations ou des modifications sur cet instrument d une mani re autre que celle d crite dans la documentation fournie avec l instrument 6 4 0993 5257 Translations of Warnings gt Warning continued w1 2 italiano Nederlands portugu s suomea svenska Pericolo Regolazioni e manutenzione non autorizzati L asservimento dello strumento permesso esclusivamente ad un tecnico di assistenza della PerkinElmer oppure da simile persona addestrata e autorizzata Non provare ad eseguire regolazioni sostituzioni riparazioni o modifiche a questo strumento se non come descritto nella documentazione allegata allo strumento Waarschuwing Ongeautoriseerde aanpassingen en service Alleen een PerkinElmer service monteur of een gelijksoortig opgeleid en geautoriseerd persoon mag service verlenen aan het instrument Probeer niet zelf aanpassingen aan dit instrument aan te brengen het te repareren of te veranderen behalve zoals beschreven in de documentatie die bij het instrument gele
15. p voi saavuttaa korkeita l mp tiloja e Ala kosketa polttimen p t ennen kuin se on j htynyt huoneenl mp tilaan Varning H ga temperaturer risk f r br nnskador Br nnaren kan n mycket h ga temperaturer Vidr r inte br nnarmunstycket f rr n det har svalnat till rumstemperatur 6 8 0993 5257 Translations of Warnings A W5 3 Warning Flammable Gases Fire and Explosion Hazard Before you ignite the flame set up your spectrometer and burner correctly and observe all the safety precautions described in your spectrometer handbook dansk Deutsch espanol francais italiano Nederlands portugu s suomea svenska Advarsel Breendbare gasarter Eksplosions og brandfare Inden flanmen t ndes skal spektrometret og breenderen forberedes forskriftsmeessigt og alle sikkerhedshenvisningerne som er beskrevet i handbogen til spektrometret skal overholdes Warnung Brennbare Gase Explosions und Brandgefahr Vor dem Z nden der Flamme Spektrometer und Brennereinheit unter Beachtung aller Sicherheitshinweise ordnungsgem vorbereiten wie im Ger tehandbuch beschrieben Advertencia Gases inflamables Peligro de incendio y explosi n Antes de encender la llama ajuste correctamente el espectr metro y el mechero tomando todas las medidas de precauci n descritas en el manual del equipo Danger Gaz inflammables Risque d incendie et d explosion
16. s TotalFlow gas controls to ensure reproducibility and ease of operation The total oxidant and fuel flowrates are controlled so that the fuel to oxidant ratio is constant independent of fluctuations in the gas pressure You select the gas flowrates and optimize the flame via the AA WinLab software The gas control system is incorporated in the spectrometer The system includes safety interlocks for the flame If the fuel or oxidant pressure falls below a minimum value the flame is shut down in a safe sequence The system also includes automatic sequencing of the gases when the nitrous oxide acetylene flame is ignited or extinguished The burner will be shut down in a safe sequence in the event of a power failure The drain system During flame operation measurement solution that condenses out in the spray chamber runs to waste down the drain tube and is collected in the drain vessel The drain vessel includes an internal trap to make certain that back pressure is applied to the spray chamber This ensures that a fuel oxidant mixture cannot enter the drain vessel There are two magnetically activated hermetically sealed reed float switches in the drain vessel that shut down the flame if the drain system is not functioning properly One float switch monitors the liquid level in the trap while the other monitors the liquid level in the drain vessel If the liquid level in the trap is too low or if the liquid level in the waste vessel is too high
17. the appropriate switch is activated and the flame is shut down Burner System Description Drain tube from burner spray chamber Retainer ca i p Drain trap assembly Float Drain vessel Lo s Drain loop Figure 5 5 The burner drain system 5 10 0993 5257 Translations of Warnings 0993 5257 6 1 Translations of Warnings 6 2 0993 5257 Translations of Warnings Warning Messages This section contains translations of the safety conventions and warnings used in this guide dansk Deutsch espa ol italiano Nederlands portugu s suomea svenska 0993 5257 Overs ttelser af advarsler Denne del indeholder overs ttelserne af de advarsler som er indeholdt i denne h ndbog bersetzungen der Warnungen Dieser Abschnitt enth lt die bersetzungen der in diesem Handbuch verwendeten Warnungen Traducciones de las advertencias Esta secci n contiene traducciones de las advertencias utilizadas en el presente manual Traduzione dei simboli di avvertenza La presente sezione contiene la traduzione dei simboli di avvertenza utilizzati nel presente manuale Vertalingen van de Waarschuwingen Dit gedeelte bevat vertalingen van de waarschuwingen gebruikt in dit handboek Tradu es de avisos Esta sec o cont m tradu es dos avisos usados no manual Varoitusten k nn kset T m osa sis lt t ss k sikirjassa k ytettyjen varoitusten k nn k
18. the flame The burner system is mounted on a carriage that can be driven into and out of the atomizer compartment by software command In this way you can change between flame atomization and electrothermal atomization easily within a few seconds The burner system comprises the following major components see the illustration below Nebulizer Spray chamber with burner end cap flow spoiler and impact bead Burner head Drain system not shown e Gas control system incorporated in the spectrometer Burner head Flow spoiler Nebulizer Burner end cap Drain fitting Figure 5 1 Major components of the burner 0993 5257 5 3 Burner System Description 5 4 How the burner system works The burner is a dual option system which means that it can be used with or without a flow spoiler The burner system is designed for the use of both the air acetylene flame and the nitrous oxide acetylene flame Interchangeable burner heads are provided for each type of flame the nitrous oxide burner head has a narrower slot than the air acetylene burner head A block diagram of the system is depicted in Figure 5 2 The measurement solution a blank sample or calibration solution is aspirated by a pneumatic nebulizer and sprayed as a fine aerosol into the spray chamber In the spray chamber the aerosol is thoroughly mixed with the burner fuel and oxidant gases The fuel gas is acetylene while the oxidant is eithe
19. the spiral wrap from the drain tube by unwrapping it This will release the drain interlock cable 0993 5257 Burner System Maintenance Warning Flammable Gases Fire and Explosion Hazard A The inner lining of the drain tube is resistant to organic solvents If this lining is damaged solvents can attack the drain tube This may result in the seepage of gas which is a serious fire hazard Take care not to damage the lining when you remove and refit the drain tube 7 Place the new piece of drain tube next to the drain interlock cable and carefully rewrap the spiral wrap around both of them 8 Place the drain clamp on the upper end of the new drain tube Then attach the tube to the drain fitting on the burner end cap Tighten the clamp securely 9 Place the other drain clamp on the lower end of the drain tube Then attach the tubing to the drain trap assembly Tighten the clamp securely 10 Plug in both drain interlock connectors and secure them with the securing rings 11 Precondition the new drain tube see next section Preconditioning a new burner or drain tube In order for a new sample introduction system to aspirate and drain smoothly the internal surfaces must be preconditioned Note You must perform this procedure directly after installation of a new burner system and you should repeat it if you replace the drain tube or any of the sample introduction components 1 Aspirate for 5 minutes a 1
20. 15 psig Assicuratevi sempre che la lancetta del manometro di uscita dell acetilene rimanga al di sotto di tali valori Waarschuwing Acetyleen Explosiegevaar Acetyleen kan spontaan ontbinden bij een druk hoger dan 103 kPa 1 03 bar 15 psig Zorg er altijd voor dat de druk van de acetyleen uitlaatmeter niet boven deze waarde uitkomt Aviso Acetileno perigo de explos o Se a press o for superior a 103 kPa 1 03 bar 15 psig o acetileno poder desintegra se de repente e explodir Assegure se de que o man metro de press o de sa da do acetileno indica sempre uma press o inferior a este valor Varo Asetyleeni r j hdysvaara Asetyleeni voi hajota r j hdyksenomaisesti jos paine on suurempi kuin 103 kPa 1 03 bar Varmistu aina siita ett asetyleenin l ht paine painemittarissa on alle t m n arvon Varning Acetylen explosionrisk Acetylen f r inte uts ttas f r h gre tryck n 103 kPa 1 03 bar 15 psig Vid h gre tryck bryts acetylenet ned och kan explodera Se till att utg ngstrycket f r acetylen ligger under detta v rde 0993 5257 6 11 Translations of Warnings A W5 10 Warning Flammable Gases Fire and Explosion Hazard The use of the wrong type of nebulizer for your burner system may result in a seepage of fuel gas which is a serious fire hazard Use only the nebulizers specified for the burner system dansk Deutsch espa ol francais Adv
21. 16 0993 5257 C 1 Contents page Maintaining the nebulizer ui EA A SE RR AE 3 20 Clearing an obstruction in the nebulizer 0 0 0 ccc eh 3 21 Removing the nebulizer lt td e A P Ce e P 3 23 Disassembling the nebulizer 0 0 0 eee eben teen nen neae 3 24 Cleaning the nebulizer vuitton See cea eque Sora P ean ens eee bo 3 26 Reassembling the nebulizer iio SE ae he ANN e Gk Mod abe eU DUE TRES T 3 26 Installing the nebulizer i el ceed cee ENNEN ENEE a a Raid 3 28 Maintaining the drain system 3 32 Flushing the IOMA gta ER RO TERRENT pe 3 32 Emptying the dram vessel oue ie Sadie Stacie because eK Eo A Rey GU RES 3 33 Adding water to the drain trap 3 34 Cleaning the drain trap assembly 3 34 Replacing the drain tube ENEE 3 36 Preconditioning a new burner or drain tube 2 0 0 ees 3 37 Maintaining the acetylene supply 3 38 Chapter 4 Burner System Parts and Supplies Obtaining supplies replacement parts and accessories 2 0 0 cee cee cette eens 4 3 Chapter 5 Burner System Description Bumer system design a ut vee EA a ees y 5 3 How the burner system works 0 ccc ttt n teen nene 5 4 BUurnhercOmMPpoOnents si eae A e use be RE NEEN E OU AE Udo Rot e 5 6 Chapter 6 Translations of Warnings Warning Messages A EM UE nig eR CR e E 6 3 Index Customer Service C 2 0993 5257 Safety Information 1 Contents page Introducti n lidia diia 1 3 Correct use of analytical instrumen
22. 4 R raising the atomizer compartment door 2 3 reassembling the burner system 3 16 reassembling the nebulizer 3 26 reassembling the spray chamber 3 16 refitting the atomizer compart ment door 2 4 removing a burner head 2 8 removing bumer end cap 2 15 3 9 removing the atomizer compart ment door 2 4 removing the nebulizer 2 10 3 23 replacement parts 4 3 replacing the burner end cap 2 17 3 17 replacing the drain tube 3 36 rinsing the burner system 3 7 S safety correct use of the instrument 1 3 safety checks for the burner 2 20 safety conventions translations 6 3 sample tube length 3 20 replacing 3 27 selecting the atomizer 2 6 setting up burner system 2 7 for flame 2 5 shutdown in emergency 2 23 slot width of burner head 3 12 solvent resistant components 2 17 spray chamber cleaning 3 14 cleaning after aspirating Cu Ag or Hg 3 15 cleaning after use of organic solvents 3 14 description 5 6 disassembling 3 8 reassembling 3 16 T translations warning messages in guide 6 3 U uneven flame 3 11 warning messages in guide translations 6 3 0993 5257 Customer Service Company Name and Addresses U S A Germany PerkinElmer LLC PerkinElmer 761 Main Avenue Verkauf und Service Norwalk Connecticut 06859 0010 Rengoldshauser Strasse 11 U S A 88662 Ueberlingen Phone 800 762 4000 or Germany 1 203 762 4000 Phone 49 7551 919 0 Fax 1 203 762 4228 Fax 49 7551 919 149
23. Return to Document Menu ATOMIC SPECTROMETRY Burner System For AAnalyst Atomic Absorption Spectrometers User s Guide pP PerkinElmer instruments TM ATOMIC SPECTROMETRY Burner System For AAnalyst Atomic Absorption Spectrometers User s Guide pP Perkin r instruments TM PerkinElmer Bodenseewerk is registered for the design and manufacture of laboratory analyti cal equipment under the quality requirements of BS EN ISO 9001 Certificate No FM 22178 Notice The information contained in this document is subject to change without notice Release history Part Number Release Publication Date 0993 5257 January 1998 September 1998 April 1999 June1999 February 2000 OO E ob Trademarks PerkinElmer is a registered trademark of PerkinElmer Inc AA WinLab AAnalyst and TotalFlow are trademarks of affiliates of PerkinElmer LLC Windows is a trademark and Microsoft is a registered trademark of Microsoft Corporation Registered names trademarks etc used in this document even when not specifically marked as such are not to be considered unprotected by law Copyright information This document contains proprietary information that is protected by copyright All rights are reserved No part of this document may be reproduced in any form whatsoever or translated into any language without the prior written permission of PerkinElmer LLC or one of its
24. System Parts and Supplies for the part number Apply a very small amount of Apiezon grease to the inner surface of the O ring in order to form a good seal with the burner head Do not let any of the grease get inside the chamber If you do wipe the chamber surfaces clean with a dry cloth 0993 5257 Burner System Maintenance 10 Place the retaining ring back on the neck of the spray chamber and hand tighten 11 Reinstall the burner head procedure page 2 9 and the nebulizer procedure page 3 28 0993 5257 3 19 Burner System Maintenance Maintaining the nebulizer To maintain optimum nebulizer performance you must periodically clean the capillary assembly and occasionally replace the sample tube When you aspirate concentrated samples with complex matrices it is especially important to keep the spray chamber and nebulizer free of deposits It is beneficial to periodically aspirate a dilute surfactant solution such as 0 1 Triton X100 for several minutes to keep the system clean The surfactant will encourage constant drainage which is essential for optimum burner system performance Before you clean the nebulizer because you suspect that the nebulizer is causing low absorbance readings or poor sensitivity e g cannot obtain expected characteristic concentration check that The sample tube is in good condition i e no kinks is not too long and is clean With a longer sample tube the rate of sample
25. amber 1 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Remove the atomizer compartment door procedure page 2 4 Remove the burner head procedure page 2 8 If corrosive or toxic samples were run previously pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the inside and the drain system Remove the nebulizer from the burner end cap and carefully allow it to hang down procedure page 3 23 step 3 If it is necessary to totally remove the burner end cap for thorough cleaning continue with step 6 otherwise go to step 7 see Figure 3 2 Do not totally remove the burner end cap unless absolutely necessary 6 0993 5257 Disconnect the drain interlock connector and the hoses from the end cap 1 Slacken the securing ring and unplug the drain interlock connector 2 Slacken the clamp and carefully pull the drain tube off the drain fitting 3 Disconnect the auxiliary oxidant hose and the fuel hose using the double wrench technique hold the end cap fitting with one wrench and unscrew the compression fitting with the other wrench Remove the burner end cap 1 Unscrew the four thumbscrews holding the end cap to the spray chamber 2 Carefully allow the end cap to hang down you do not need to disconnect any of the hoses except for thorough cleaning of the end cap Withdraw
26. arsel Breendbare gasarter Eksplosions og brandfare Brugen af en forkert forstovertype til Deres breendersystem kan medf re udslip af braendselsgas som udg r en alvorlig brandfare Benyt kun de forstavere som er beregnet til breendersystemet Warnung Brennbare Gase Explosions und Brandgefahr Bei Verwendung eines falschen Zerst ubertyps im Brennersystem kann Brenngas austreten was Brandgefahr zur Folge hat Verwenden Sie nur die f r das Brennersystem zul ssigen Zerst ubertypen Advertencia Escapes de gas Peligro de incendio y explosi n El uso del tipo inadecuado de nebulizador en su sistema de mecheros puede ocasionar un escape de gas combustible lo que entra a un grave peligro de incendio Use nicamente el nebulizador especificado para el sistema de mecheros Danger Gaz inflammables Risque d incendie et d explosion L emploi d un mauvais type de n buliseur pour votre syst me de br leur peut entra ner une infiltration de gaz de combustion qui constitue un grave risque d incendie N utiliser que les n buliseurs sp cifi s pour le syst me de br leur 6 12 0993 5257 Translations of Warnings gt Warning continued W5 10 italiano Nederlands portugu s suomea svenska 0993 5257 Pericolo Gas infiammabili Pericolo di incendio e di esplosione L uso di un errato tipo di nebulizzatore nel vostro sistema di combustione pu causare l infiltrazione
27. atomizer compartment door procedure page 2 4 Remove the burner head procedure page 2 8 Carefully work along and through the burner head slot with the cleaning tool provided Note Do not nick the edges of the slot The cleaning tool resembles a strip of thin metal sheet Do not use other tools to clean inside the burner slot since they may have burrs that could nick the slot Rinse the burner head well with deionized water and make sure that all scrapings are removed from inside and outside the burner head Blow the burner head dry with clean compressed air Wear safety glasses when doing this Burner System Maintenance 7 Reinstall the burner head procedure page 2 9 8 Refit the atomizer compartment door procedure page 2 4 Complete cleaning procedure If the quick cleaning procedure above fails to remove deposits or if you wish to clean the burner head more thoroughly continue as given below W8 6 Warning Hydrochloric and Nitric Acids Risk of Burns Hydrochloric HCl and nitric HNO3 acids are corrosive and can cause severe burns When using acid always wear suitable protective clothing including a face mask work in a fume hood and observe the manufacturer s instructions and your local safety regulations 1 Clean the burner head in a solution of 1096 V V nitric acid or 15 V V hydrochloric acid preferably in an ultrasonic cleaning bath Treat the burner head for at least 10 min
28. ber 5 Place the end cap against the spray chamber and tighten the four thumbscrews Tighten them until they are finger tight in the sequence top right bottom left bottom right top left 6 If you removed the auxiliary oxidant and fuel hoses reconnect them Tighten the compression fittings hand tight plus a 1 4 turn using the double wrench technique hold the end cap fitting with one wrench and tighten the compression fitting with the other wrench Burner end cap Compression fittings Auxiliary oxidant hose p Fuel hose Drain fitting Figure 3 4 Connecting the hoses to the burner end cap 0993 5257 3 17 Burner System Maintenance Drain interlock connector Drain tube Figure 3 5 Connecting the drain tube Warning Flammable Gases Fire and Explosion Hazard The inner lining of the drain tube is resistant to organic solvents If this lining is damaged solvents can attack the drain tube This may result in the seepage of gas which is a serious fire hazard Take care not to damage the lining when you remove and refit the drain tube 3 18 7 If you removed it carefully push the drain tube onto the drain fitting and tighten the clamp Plug in the drain interlock connector and secure it with the securing ring Check that the burner head O ring is properly seated in the neck of the spray chamber and is in good condition If it is not replace it see Burner
29. burner head influences the stability of the signals Discard the burner head if the top surface is corroded Burner System Maintenance 3 14 Cleaning the spray chamber l 2 3 4 Disassemble the spray chamber procedure page 3 6 Clean the spray chamber and flow spoiler with a soft brush and a mild laboratory detergent solution Note Do not scrape the plastic components with metal tools Do not soak the spray chamber in acid or use abrasive cleansers Avoid damaging the lining of the spray chamber After cleaning rinse thoroughly with deionized water Reassemble the burner system procedure page 3 16 Cleaning the spray chamber after use with organic solvents If you aspirate aqueous samples immediately after organic samples e g oils or MIBK extracts the absorption signals can be noisy and erratic After aspirating organic samples perform the procedure below to prevent contamination of subsequent aqueous samples l Aspirate for 5 minutes an organic solvent that is miscible with the samples that have just been aspirated Aspirate for 5 minutes methanol or another solvent that is miscible both with water and the solvent used previously Aspirate 1 V V nitric acid solution for 5 minutes Aspirate deionized water for 5 minutes Extinguish the flame and allow the burner head to cool procedure page 3 7 Remove the burner head procedure page 2 6 Pour a large quantity of deionized water slowl
30. capillary assembly for damage and replace it if necessary Lightly lubricate the surface of the O ring with a minimum of Apiezon grease Make sure that no grease gets onto the tip of the capillary Slide the spring back onto the capillary assembly if it was removed Push the capillary assembly into the insert Check that the capillary tip protrudes through the small aperture in the insert when you press in the capillary assembly Insert these assembled components into the nebulizer body Orientate the capillary assembly so that the bevelled edge of the capillary faces the nebulizer side arm this position generally provides best solution aspiration Slide the PTFE disk onto the capillary assembly and then screw on the regulator 0993 5257 Burner System Maintenance 7 Carefully push the venturi into the front end of the nebulizer body and screw on the end cap 8 Slip the O ring over the protruding end of the venturi 9 Attach the sample tube to the nebulizer capillary 1 Use the old cleaned sample tube or cut a 20 cm length from the 0 6 mm i d tube provided with the nebulizer Cut the tube with a scalpel do not use scissors 2 Take one of the copper cleaning wires provided with the nebulizer and very carefully push it through the nebulizer capillary from the inlet side Note Use only the copper cleaning wires provided 0303 0135 Other wires may be burred and damage the nebulizer Use a straight sectio
31. di gas del combustibile provocando un forte rischio di incendio Utilizzate esclusivamente i nebulizzatori specifici per il vostro sistema di combustione Waarschuwing Brandbare gassen Gevaar voor brand en explosie Gebruik van de verkeerde soort verstuiver voor de branders kan leiden tot lekkage van stookgas hetgeen ernstig brandgevaar oplevert Gebruik uitsluitend de verstuivers die voor de branders zijn aangegeven Aviso Gases inflam veis perigo de inc ndio e de explos o A utilizac o do tipo errado de pulverizador para o seu sistema de queimador poder causar uma fuga de g s o que constitui um perigo de inc ndio eminente Use apenas os pulverizadores especificados para o sistema de queimador Varo Syttyv t kaasut tulipalo ja r j hdysvaara Jos poltinj rjestelm ss k ytet n v r ntyyppist sumutinta seurauksena voi olla polttoainekaasun vuotaminen mik merkitsee vakavaa tulipalovaaraa K yt ainoastaan sumuttimia jotka on m r tty poltinj rjestelm lle Varning Br nnbara gaser explosions och brandfara Anv ndning av fel spridarmunstycke till br nnarsystemet kan orsaka gasl ckage vilket kar brandrisken Anv nd endast spridarmunstycken som rtillverkade f r det aktuella br nnarsystemet 6 13 Translations of Warnings A W8 6 Warning Hydrochloric Acid Risk of Burns Hydrochloric acid HCl is corrosive and can cause severe burns When using hydr
32. down the gases at source and bleed the gas supply lines procedure page 3 7 2 Remove the atomizer compartment door procedure page 2 4 2 10 0993 5257 Preparing for Analyses 3 Remove the nebulizer from the burner end cap 1 Slacken the nebulizer clamping screw 2 Lift up and hold the nebulizer clamp Very gently rock the nebulizer a few times to make sure that it is not sticking in the end cap 3 Carefully pull the nebulizer out of the end cap Make sure that you remove the venturi O ring with the nebulizer If the O ring remains lodged in the burner end cap use a plastic or wooden probe to dislodge it 4 Using a2 mm Allen wrench undo the two screws that retain the black magnet assembly on the nebulizer side arm Take care not to lose the screws 5 Pull the nebulizer oxidant tube from the side arm with a rocking motion Magnet assembly Screws 9 Side arm Nebulizer oxidant tube Figure 2 6 Removing the nebulizer oxidant tube 0993 5257 2 11 Preparing for Analyses To install the nebulizer W5 10 Warning Flammable Gases Fire and Explosion Hazard The use of the wrong type of nebulizer for your burner system may result in a seepage of fuel gas which is a serious fire hazard Use only the nebulizers specified for the burner system Nebulizer clamp Nebulizer clamping screw Nebulizer Magnet assembly Figure 2 7 Installing the nebulizer 1 If you
33. e Online Help in AA WinLab 3 31 0993 5257 Burner System Maintenance Maintaining the drain system Always place the drain vessel in a well ventilated place underneath the spectrometer in full view while you are working with the spectrometer This prevents the build up of potentially hazardous gases and allows you to see the liquid level Maintenance procedures that you can perform yourself are described below The drain trap and switch assembly should be replaced by trained service personnel only You must check the drain tube and vessel periodically for wear and or chemical attack The drain tube should be clear with as few bends as possible You should replace the drain tube if it has deteriorated Flushing the drain system At the end of each working day flush the drain system thoroughly with water to remove caustic corrosive or organic waste materials that could otherwise damage the spray chamber or drain tube 1 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 2 Remove the atomizer compartment door procedure page 2 4 3 Remove the burner head procedure page 2 8 4 Pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the inside and the drain system 5 Empty the drain vessel procedure page 3 33 Note Dispose of hazardous or corrosive solutions properly and ref
34. e burner system The fuel and oxidant hoses are correctly fitted to the burner system The drain system is installed and operating correctly The door of the atomizer compartment is in the closed position e All safety interlocks are correctly closed If the interlocks are not closed one or more of the following may be the cause The burner head the nebulizer or the drain system is not correctly installed The acetylene or oxidant pressure is too low The liquid level in the drain trap is too low The liquid level in the drain vessel is too high 2 20 0993 5257 Preparing for Analyses Igniting the flame A W5 3 Warning Flammable Gases Fire and Explosion Hazard Before you ignite the flame set up your spectrometer and burner correctly and observe all the safety precautions described in your spectrometer handbook Note Inan emergency switch off the spectrometer using the operational on off switch on the front panel The flame is automatically extinguished and the gases shut down in a safe sequence See page 2 23 for the procedure to follow after an emergency shutdown To ignite the flame 1 Switch on and set up the spectrometer system see Setting up the system for analyses using the flame technique page 2 5 2 Perform the safety checks see page 2 20 3 Adjust the outlet gauge pressures of the burner gases to the recommended values see Table 2 1 on page 2 22
35. e provoquer des l sions oculaires Pendant que la flamme br le laissez la porte du br leur ferm e Ne l ouvrir que si vous devez ajuster le br leur comme d crit dans la documentation utilisateur Toujours porter des lunettes de protection absorbant les UV pour regarder la flamme gt 6 6 0993 5257 Translations of Warnings gt Warning continued W3 4 italiano Nederlands portugu s suomea svenska Pericolo Radiazioni UV Rischio di lesioni agli occhi La fiamma specialmente la fiamma a protossido d azozo acetilene pu emettere radiazioni UV che possono lesionare gli occhi Mentre la fiamma attiva tenere chiuso il portello del bruciatore se non che per regolare il bruciatore come descritto nella documentazione per l operatore Quando guardate nella fiamma indossate sempre occhiali di sicurezza in grado di assorbire le radiazioni UV Waarschuwing Ultraviolette straling Risico s voor de ogen De vlam in het bijzonder de lachgas acetyleenvlam emitteert UV straling en kan daardoor letsel aan de ogen veroorzaken Houdt bij brandende vlam de branderdeur gesloten tenzij de brander bijgesteld moet worden zoals in de gebruikers handleiding beschreven Draag altijd een veiligheidsbril die de ge mitteerde UV straling voldoende absorbeert wanneer U in de brandende vlam moet kijken Aviso Radiac o UV perigo para os olhos A chama especialmente a chama de xido nit
36. ed to stabilize the acetylene e g acetone may be carried over into the burner This could influence the characteristics of the burner Always change to a new acetylene cylinder when the cylinder pressure falls to below this value 0993 5257 Burner System Maintenance Maintaining the burner system Procedures described Rinsing the burner system and extinguishing the flame procedure page 3 7 Disassembling the spray chamber procedure page 3 8 Cleaning the burner system procedure page 3 11 Reassembling the burner system procedure page 3 16 0993 5257 Burner System Maintenance Extinguishing the flame Before you extinguish the flame or begin maintenance or disassembly procedures you must rinse the burner system After you extinguish the flame allow the burner head to cool To rinse the system The procedure for rinsing the burner system depends on the type of samples that you have analyzed Recommendations If the sample solutions contained organic solvents use a multi rinse procedure to remove all traces of the solvents from the system Ifthe sample solutions contained toxic substances you must rinse all traces of these substances out of the system If the sample solutions contained high concentrations of copper silver or mercury salts which can form unstable acetylides you must rinse all traces of these substances out of the system Procedures Ifyou used on
37. edures for extinguishing the flame are described on page 3 7 Preparing for Analyses Changing a burner head If the burner head currently fitted to the burner system is not suitable for your planned analyses change it as described below The available burner heads are described on page 5 7 To remove the burner head A Warning High Temperatures Risk of Burns The burner head can reach very high temperatures Do not touch the burner head until it has cooled to room temperature Safety latch positioned above burner head ring Igniter assembly Lift burner head away from the spray chamber SS Hold tab pressed Figure 2 3 Removing the burner head 1 Where applicable extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 2 Remove the atomizer compartment door procedure page 2 4 3 Remove the burner head 1 Press and hold the tab on the safety latch located on the igniter assembly 2 Gently pull and twist the burner head in an upward direction until it comes out of the neck of the spray chamber 0993 5257 Preparing for Analyses To install a burner head Magnetic AAA strip nmm nem Make certain hook is over burner head ring Igniter assembly Press tab Figure 2 4 Installing and latching the burner head 1 Press and hold the tab on the safety latch located on the igniter a
38. enska Advarsel H je temperaturer Fare for forbr ndinger Br nderhovedet kan opn meget h je temperaturer Beror aldrig br nderhovedet for det er k let ned til stuetemperatur Warnung Verbrennungsgefahr Den heien Brennerkopf nur mit hitzebest ndigen Schutzhandschuhen anfassen oder vor dem Anfassen auf K rpertemperatur abk hlen lassen Advertencia Altas temperaturas Riesgo de quemaduras La cabeza del mechero puede alcanzar temperaturas muy altas e Aseg rese antes de tocar el mechero que ste se haya enfriado hasta alcanzar la temperatura ambiente Danger Temp ratures lev es Risque de br lures La t te de br leur peut atteindre de tr s hautes temp ratures Ne pas toucher la t te de br leur avant qu elle ait refroidi la temp rature ambiante Pericolo Alte temperature Rischio di ustioni La testa del bruciatore pu raggiungere temperature estremamente elevate Non toccare la testa del bruciatore sino a che non si e raffreddato sino a raggiungere temperatura ambiente Waarschuwing Hoge temperaturen Verbrandingsgevaar De branderkop kan zeer hoge temperaturen bereiken Raak de branderkop pas aan als hij tot kamertemperatuur is afgekoeld Aviso Altas temperaturas perigo de queimaduras A cabe a do queimador pode alcan ar temperaturas muito altas N o toque na cabe a do queimador at ter alcan ado a temperatura Varo Korkeat l mp tilat palovammavaara Polttimen
39. er to your local safety regulations for proper disposal procedures 3 32 0993 5257 Burner System Maintenance Emptying the drain vessel 0993 5257 Retainer cap Drain vessel Figure 3 14 Drain vessel and drain trap assembly 1 E Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Switch off the spectrometer Flush the drain system procedure page 3 32 Unscrew the retainer cap from the drain vessel Carefully lift out the drain trap assembly Do not disconnect the electrical lead Place the drain trap assembly into a suitably large bucket or container so that it is vertical If the drain trap assembly is laid on its side liquid can run out onto the floor Rinse the outside of the assembly well with water Empty the drain vessel Note Dispose of hazardous or corrosive solutions properly and refer to your local safety regulations for proper disposal procedures Place the drain trap assembly back into the drain vessel and screw on the retainer cap 3 33 Burner System Maintenance Adding water to the drain trap The drain vessel includes an internal trap to make certain that burner gases cannot escape into the drain vessel more information page 3 9 Enough water must be present in the drain system to fill the drain loop and to activate the drain float If not carry out the following procedure 1 E
40. etylene can decompose explosively at pressures higher than 103 kPa 1 03 bar 15 psig Always make sure that the acetylene outlet gauge pressure is below this value dansk Deutsch espafiol francais Advarsel Acetylen Eksplosionsfare Acetylen kan nedbrydes eksplosionsagtigt ved tryk over 103 kPa 1 03 bar 15 psig Forvis Dem altid om at acetylen udgangsm letrykket ligger under denne vaerdi Warnung Acetylen Explosionsgefahr Stellen Sie f r Acetylen keinen h heren Ausgangsdruck als 103 kPa 1 03 bar ein Bei h heren Dr cken kann Acetylen spontan zerfallen und explodieren Advertencia Acetileno Peligro de explosi n El acetileno puede descomponerse y ocasionar explosiones a presiones superiores a 103 kPa 1 03 bar 15 psig Tenga cuidado siempre de mantener la presi n del man metro de acetileno por debajo de este valor Danger Ac tyl ne Risque d explosion L ac tyl ne peut se d composer de mani re explosive des pressions sup rieures 103 kPa 1 03 bar 15 psig Toujours v rifier que la pression de l ac tyl ne sur le manom tre de sortie est inf rieure cette valeur 6 10 0993 5257 Translations of Warnings gt Warning continued W5 7 italiano Nederlands portugu s suomea svenska Pericolo Acetilene Pericolo di esplosione L acetilene pu decomporsi in maniera esplosiva a pressioni superiori a 103 kPa 1 03 bar
41. free catalog or ask for information If you are located within the U S call toll free 1 800 762 4002 8 a m to 8 p m EST Your order will be shipped promptly usually within 24 hours If you are located outside of the U S call your local PerkinElmer sales or service office What is listed in this chapter This chapter lists the most important replacement parts for your burner system Information about other parts and accessories is given in the current PerkinElmer brochures and price lists Parts and Supplies 4 4 Retaining ring S f as O ring DE a Spray UN Flow spoiler Impact bead Plug End cap seal Impact bead O rings NS Retaining g Impact bead plate e O rings Figure 4 1 Burner components S 0993 5257 Parts and Supplies 0993 5257 Description Part No Burner components Spray chamber 0057 0948 Burner end cap eect tenn en ene 0057 0984 Flow spoiler ed eee Poe ea Wa ee hele Sees 0057 2561 Impact bead 0 ec eee 0057 2615 Burner head cleaning tool o oooooooooomoo oo 0303 1573 Kalrez O ring for end oan 0992 1044 Burner gasket kit 0047 0988 Includes the following gaskets 3 Viton O rings for end cap general use 0990 2147 5 Corkpreen gaskets for end cap use with organics 0047 2014 3 O rings for the neck of the spray chamber 0990 2219 for the burner head 3 impact
42. g it out with a wooden probe Venturi O ring End cap Venturi Ki O BO Locking ring Insert O ring KH VW Spring PM S Capillary assembly PTFE disk a Regulator Figure 3 9 Standard nebulizer assemblies 0993 5257 3 25 Burner System Maintenance 3 26 Cleaning the nebulizer After you have disassembled the nebulizer clean the components as follows 1 Clean the capillary assembly using a mild laboratory detergent solution or a solvent such as isopropanol preferably in an ultrasonic bath Clean the nebulizer body and any other parts that appear dirty in a mild laboratory detergent solution or a solvent such as isopropanol preferably in an ultrasonic bath Rinse all the cleaned components thoroughly with deionized water Inspect the O rings 1 on the capillary assembly 1 on the insert 1 on the venturi and the one that fits over the venturi in front of the end cap and clean them if necessary in mild laboratory detergent solution followed by a thorough rinsing with deionized water If they look damaged replace them see Nebulizer components page 4 7 After you have cleaned the components reassemble the nebulizer Reassembling the nebulizer Refer to Figure 3 9 when reassembling the nebulizer l Lightly lubricate the surface of the O ring on the insert with a minimum of Apiezon grease supplied with the nebulizer If not already done inspect the tiny O ring on the
43. he drain map 3 34 Cleaning the drain trap assembly 2 1 eee mre 3 34 Replacing the drain tube ia E RU ee 3 36 Preconditioning a new burner Or drain tube 2 2 2 eee teens 3 37 Maintaining the acetylene supply 3 38 0993 5257 3 1 Burner System Maintenance 3 2 0993 5257 Burner System Maintenance PerkinElmer Service A W1 2 Warning Unauthorized Adjustments and Servicing Only a PerkinElmer service engineer or similarly trained and authorized person should be permitted to service the instrument Do not attempt to make adjustments replacements repairs or modifications to this instrument except as described in the documentation supplied with the instrument 0993 5257 If the burner system does not function correctly Switch off the spectrometer system and make sure that it cannot be operated Contact your local PerkinElmer office You should only perform the maintenance procedures described in this guide For any other maintenance or service contact your local PerkinElmer office to arrange for a service engineer to visit In particular you should only allow a PerkinElmer service engineer or similarly trained and authorized person to perform any work on electrical components inside the instrument the internal gas connections and gas system pneumatics Before the service engineer arrives Make sure that the instrument and work area are clean Empty corrosive solution
44. latch button uv th Z W3 4 Warning UV Radiation Risk of Eye Damage The flame especially the nitrous oxide acetylene flame may emit UV radiation which can damage your eyes Keep the door closed when the flame is burning unless you need to adjust the burner as described in the user documentation Always wear UV absorbing safety glasses when looking at the flame 0993 5257 Preparing for Analyses Removing and refitting the door To perform procedures in the atomizer compartment you may find it more convenient to remove the atomizer compartment door Follow the steps below to remove and refit the door Door securing knob Figure 2 2 Removing the atomizer compartment door To remove the door 1 Slide the door to the lowest position 2 Unscrew the door securing knob 3 Carefully pull the 2 door pins out of the door slide on the left hand side 4 Pull the door retainer strip out of the door slide on the right hand side Removal is complete To refit the door 1 Insert the door retainer strip into the slot in the door slide on the right hand side 2 Slide the door up or down until the 2 door pins line up with the holes in the door slide on the left hand side Push the pins into the holes 3 Screw in the door securing knob Refitting is complete 2 4 0993 5257 Preparing for Analyses Setting up the system for analyses using the flame technique 0993 5257 Summa
45. ly aqueous solutions during the analyses 1 Aspirate deionized water for 5 minutes Ifyou used organic solvents during the analyses 1 Aspirate for 5 minutes an organic solvent that is miscible with the samples that have just been aspirated 2 Aspirate for 5 minutes methanol or another solvent that is miscible both with water and the solvent used previously 3 Aspirate 1 V V nitric acid solution for 5 minutes Aspirate deionized water for 5 minutes To extinguish the flame 1 In the Flame Control window click on the Flame icon The system uses a predetermined shutdown sequence to extinguish the flame safely 2 Shut down the gases to the spectrometer at source 3 In the Flame Control window click on Bleed Gases to depressurize the gas lines 0993 5257 3 7 Burner System Maintenance Disassembling the spray chamber Warning Toxic or Corrosive Residues Ifyou had previously been aspirating toxic or corrosive samples any residues in the spray chamber may also be toxic or corrosive Wear protective gloves while you are disassembling the spray chamber Burner head Retaining ring Burner head O ring End cap O ring Burner end cap Milled posts 2 b Be Nebulizer 2 5 Flow spoiler Thumbscrews 4 Figure 3 1 Exploded view of the burner system 3 8 0993 5257 Burner System Maintenance Refer to Figure 3 1 and Figure 3 2 while disassembling the spray ch
46. m incorporates safety interlock sensors to ensure safe operation of the flame 0993 5257 Burner System Description 9SS9A uleiq uonnios jueuieJnsee w eqn ulejq AV 1aj9ulo1j0ads o jeuJejur uJ9js S oJjuoo sec 7 JapuljAo 2pIXO SNOIN Ajquesse Je pue Je up sy Joje n6al ii PIXO SNOJHIN Jepur Ao aua J90y juepixo JeI ixny juepixo JezijnqoN aua J90y Joje nbal augAjeoy 4 Figure 5 2 Block diagram of the complete burner system 0993 5257 Burner System Description Burner components The spray chamber and end cap Burner head Burner end cap Auxiliary oxidant line Fuel line Spray chamber Nebulizer Nebulizer Sample tube _ _ oxidant line Figure 5 3 Details of the burner system The burner system uses a chemical resistant high strength plastic spray chamber The spray chamber is angled to ensure proper drainage The fuel gas auxiliary oxidant and drain fittings are located on the end cap An impact device flow spoiler or impact bead allows only the finer aerosol droplets to pass through the chamber to the burner head The larger droplets condense out and are removed via the drain The sample aerosol is thoroughly mixed with the fuel and oxidant gases in the spray chamber A separate auxiliary oxida
47. mp IN Nebulizer clamp must be lowered and locked in raised position over the nebulizer flange Em AS STD a Nebulizer flange Nebulizer side arm located in side arm slot Figure 2 8 Securing the nebulizer 0993 5257 2 13 Preparing for Analyses Nebulizer interlock sensor Magnet assembly Figure 2 9 Aligning the magnet assembly This completes installation of the nebulizer You should now set up the nebulizer then optimize the burner and nebulizer before checking the sensitivity Refer to the Online Help in AA WinLab 2 14 0993 5257 Preparing for Analyses Flow spoiler and impact bead If you wish to install a flow spoiler of impact bead or check that these components are correctly installed follow the steps below Remove the burner end cap 1 Where applicable extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Remove the atomizer compartment door procedure page 2 4 Remove the burner head procedure page 2 8 If corrosive or toxic samples were run previously pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the inside and the drain system Remove the burner end cap 1 Unscrew the four thumbscrews holding the end cap to the spray chamber 2 Carefully allow the end cap to hang do
48. n of burner components 5 6 design of burner system 5 3 disassembling the nebulizer 3 24 disassembling the spray chamber 3 8 drain system description 5 9 flushing 3 32 maintaining 3 32 drain trap adding water 2 19 3 34 cleaning 3 34 drain tube preconditioning 3 37 replacing 3 36 drain vessel emptying 3 33 drainage of spray chamber 3 20 3 37 E emergency shutdown 2 23 emptying the drain vessel 3 33 extinguishing the flame 3 7 F flame extinguishing 3 7 igniting 2 21 flame igniter description 5 9 flame technique setting up 2 5 flashback of the flame 3 11 flow spoiler description 5 4 installation 2 15 flushing the drain system 3 32 G gas controls description 5 9 I igniting the flame 2 21 impact bead description 5 4 installing 2 16 installing a burner head 2 9 installing solvent resistant com ponents 2 17 installing the nebulizer 2 12 3 28 In 3 Index L lowering the atomizer compart ment door 2 3 M maintaining the acetylene supply 3 38 maintaining the burner system 3 6 maintaining the drain system 3 32 maintaining the nebulizer 3 20 maintenance checklist 3 4 N nebulizer changing 2 10 cleaning 3 26 clearing an obstruction 3 21 description 5 7 disassembling 3 24 exploded view 3 25 installing 2 12 3 28 maintaining 3 20 reassembling 3 26 removing 2 10 3 23 nebulizer sample tube length 3 20 replacing 3 27 P PerkinElmer service 3 3 preconditioning 3 37 In
49. n of the cleaning wire to avoid scratching the interior of the capillary assembly 3 Using the wire as a guide push the sample tube onto the capillary 4 Remove the cleaning wire Nebulizer capillary Cleaning wire po tube 0993 5257 3 27 Burner System Maintenance Installing the nebulizer W5 10 The use of the wrong type of nebulizer for your burner system may result in a seepage of fuel gas which is a serious fire hazard Use only the nebulizers specified for the burner system Warning Flammable Gases Fire and Explosion Hazard Nebulizer clamp Nebulizer clamping screw Nebulizer Nebulizer oxidant tube Magnet assembly Figure 3 10 Installing the nebulizer 3 28 0993 5257 Burner System Maintenance Magnet assembly Screws 9 SO y Je s Side arm Nebulizer oxidant tube Figure 3 11 Connecting the nebulizer oxidant tube 1 Connect the nebulizer oxidant tubing 1 Push the nebulizer oxidant tube onto the nebulizer side arm 2 Replace the black magnet assembly on the side arm and tighten the two securing screws refer to Figure 3 11 The magnet assembly serves to clamp the oxidant tube on the side arm and also contains the magnet that activates the nebulizer interlock 2 Before you install the nebulizer verify that the O ring on the venturi is properly located and in good condition If it appears damaged replace it Never install a nebuli
50. nded you may damage the instrument or compromise your own or someone else s safety Analytical instruments should only be operated by persons who are suitably qualified and have received adequate training 0993 5257 1 3 Safety Information Warning markings on the burner system A A Risk of hot surfaces Risque de surfaces chaudes Gefahr durch hei amp e Oberfl chen B Nebulizer clamp must be lowered and locked over the nebulizer flange La pince du n buliseur doit tre abaiss e et verrouill e audessus de la bride du n buliseur Die Zerst uber Befestigungsplatte mu nach unten geschoben und ber dem Flansch des Zerst ubers befestigt sein c Warning Moving Parts Risk of Injury Some moving parts of the instrument are accessible in normal operation Keep hands clothing and other objects away from the moving parts of the instrument Danger Parties en mouvement Risque d accident corporel Certaines parties en mouvement de l instrument sont accessibles en fonctionnement normal Tenir les mains v tements et autres objets loign s des parties en mouvement de l instrument Burner system Warnung Bewegliche Teile Verletzungsgefahr Bei normalem Betrieb sind bewegliche Teile des Ger ts zug nglich H nde Kleidung und andere Gegenst nde von den beweglichen Teilen des Ger t
51. need to fit a new sample tube to the nebulizer refer to page 3 27 step 9 2 Connect the nebulizer oxidant tubing 1 Push the nebulizer oxidant tube onto the nebulizer side arm 2 Replace the black magnet assembly on the side arm and tighten the two securing screws refer to Figure 2 6 The magnet assembly serves to clamp the oxidant tube on the side arm and also contains the magnet that activates the nebulizer interlock 3 Before you install the nebulizer verify that the O ring on the venturi is properly located and in good condition If it appears damaged replace it Never install a nebulizer without a correctly fitted O ring 2 12 0993 5257 Preparing for Analyses Venturi O ring 4 Install the nebulizer in the burner end cap 1 Lift up and hold the nebulizer clamp 2 Holding the nebulizer with the side arm to the right insert the nebulizer into the port in the end cap 3 Push the nebulizer into the end cap as far as it will go The nebulizer side arm must be located in the slot in the end cap 4 Lower the nebulizer clamp making sure that it locks over the nebulizer flange and then tighten the nebulizer clamping screw 5 Pull on the nebulizer gently to make sure that the nebulizer clamp is properly engaged 6 Make sure that the magnet assembly fits snugly alongside the burner end cap and that the magnet is facing the nebulizer interlock sensor see Figure 2 9 Nebulizer cla
52. nt line allows variation of the fuel to oxidant ratio without varying the nebulizer oxidant flow thereby maintaining optimum constant solution aspiration rates 0993 5257 Burner System Description 0993 5257 The nebulizer The system uses an adjustable corrosion resistant nebulizer The standard stainless steel nebulizer is ideal for general all round use when a wide variety of sample types is analyzed Corrosion resistant platinum alloy and plastic nebulizers are available as options The burner head Four burner heads are available for the burner system The burner heads are made of titanium to provide high chemical resistance and good thermal characteristics Each burner head can be rotated at an angle in the sample radiation beam When the burner head is turned at an angle the pathlength of the radiation through the flame is correspondingly shortened This feature 1s useful if you are analyzing solutions of high analyte concentration Positioning notches are located on the burner ring see Figure 5 4 Each burner head has a magnetic identification strip on the burner ring This permits the spectrometer to sense which burner head is installed This prevents the nitrous oxide acetylene flame from being ignited when an air acetylene burner head is installed Burner System Description N040 0100 5 cm N040 0101 5 cm nitrous oxide operation air acetylene operation Positioning notches Magnetic identification s
53. ochloric acid always wear suitable protective clothing including a face mask work in a fume hood and observe the manufacturer s instructions and your local safety regulations dansk Deutsch espa ol francais Advarsel Saltsyre Fare for aetsninger Saltsyre HCl er korrosiv og kan for rsage alvorlige setsninger Under h ndteringen af saltsyre skal man altid b re tilsvarende beskyttelsestoj inklusive ansigtsbeskyttelse arbejde i et aftraek samt overholde producentens henvisninger og de stedlige sikkerhedsforskrifter Warnung Salzs ure Ver tzungsgefahr Salzs ure HCI ist stark tzend und korrosiv Tragen Sie beim Umgang mit Salzs ure eine Schutzbrille oder Gesichtsschutz Schutzhandschuhe und s urebest ndige Schutzkleidung und arbeiten Sie in einem Abzug Beachten Sie die Gefahrenhinweise und Sicherheitsratschl ge des Herstellers Advertencia cido clorh drico Peligro de quemaduras El cido clorh drico HCl es corrosivo y puede causar quemaduras graves Al usar este cido utilice siempre ropa de protecci n incluyendo una m scara facial trabaje en la campana de humos y siga las instrucciones del fabricante y las reglas de seguridad nacionales Danger Acide chlorhydrique Risque de br lures L acide chlorhydrique HCl est corrosif et susceptible de provoquer de graves br lures Lors de l utilisation d acide chlorhydrique toujours porter une tenue protectrice appropri e compo
54. os la ropa y otros objetos alejados de las partes m viles del equipo Danger Parties en mouvement Risque d accident corporel Certaines parties en mouvement de l instrument sont accessibles en fonctionnement normal Tenir les mains v tements et autres objets loign s des parties en mouvement de l instrument 6 16 0993 5257 Translations of Warnings gt Warning continued Wa italiano Nederlands portugu s suomea svenska Pericolo Parti in movimento Pericolo di infortunio Alcune delle parti in movimento dello strumento sono accessibili anche durante il normale funzionamento Tenete le mani gli indumenti e altri oggetti lontano dalle parti in movimento dello strumento Waarschuwing Bewegende delen Verwondingsgevaar Sommige bewegende delen van het instrument kunnen aangeraakt worden tijdens de normale werking Handen kleding en andere voorwerpen uit de buurt van de bewegende delen van het instrument houden Aviso Pecas m veis perigo de ferimento Algumas pecas m veis do aparelho podem ser acedidas durante o funcionamento normal Mantenha afastados das pe as m veis do aparelho as m os o vestu rio e outros objectos Varo Liikkuvat osat loukkaantumisvaara Muutamiin laitteen liikkuviin osiin on mahdollista p st k siksi normaalik yt n aikana Pid k det vaatteet ja muut esineet loitolla laitteen liikkuvista osista Varning R rliga delar
55. p is not resistant to organic solvents If you intend to aspirate solutions containing organic solvents you must exchange this O ring for a solvent resistant O ring 1 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Remove the atomizer compartment door procedure page 2 4 Remove the burner head procedure page 2 8 If corrosive or toxic samples were run previously pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the inside and the drain system Remove the nebulizer from the burner end cap procedure page 2 10 and carefully allow it to hang down Remove the burner end cap 1 Unscrew the four thumbscrews holding the end cap to the spray chamber 2 Carefully allow the end cap to hang down Remove the O ring from the groove in the end cap see Figure 3 3 Carefully fit the fragile Corkpreen gasket 0047 2014 or the Kalrez O ring 0992 1044 in the groove Place the end cap against the spray chamber and tighten the four thumbscrews Tighten them until they are finger tight in the sequence top right bottom left bottom right top left 10 Reinstall the burner head procedure page 2 9 and the nebulizer 0993 5257 procedure page 2 12 Preparing for Analyses Not all gaskets in the burner unit are suitable for use with organic solvents Exposure to such sol
56. pymisvammat Suolahappo HCl on sy vytt v ja voi aiheuttaa vakavia sy pymisvammoja Kun k sittelet suolahappoa k yt aina sopivaa suojavaatetusta johon kuuluu my s naamari ty skentele vetokaapissa ja ota huomioon valmistajan antamat ohjeet ja paikalliset turvam r ykset Varning Saltsyra risk f r br nnskador Saltsyra HCI r fr tande och kan ge sv ra br nnskador Anv nd alltid skyddskl der och skyddsmask vid hantering av saltsyra och arbeta under en utsugningshuv F lj tillverkarens instruktioner och de lokala s kerhetsf reskrifterna 0993 5257 6 15 Translations of Warnings A W9 1 Warning Moving Parts Risk of Injury Some moving parts of the instrument are accessible in normal operation Keep hands clothing and other objects away from the moving parts of the instrument dansk Deutsch espa ol francais Advarsel Beveegelige dele Fare for kv stelser Nogle af apparatets bevaegelige dele er tilgaengelige ved normal betjening Hold haender taj og andre genstande borte fra apparatets beveegelige dele Warnung Bewegliche Teile Verletzungsgefahr Bei normalem Betrieb sind bewegliche Teile des Ger ts zug nglich H nde Kleidung und andere Gegenst nde von den beweglichen Teilen des Ger ts fernhalten Advertencia Peligro mec nico Algunas de las partes m viles del aparato son accesibles durante su funcionamiento normal Mantenga las man
57. r air or nitrous oxide The fuel gas enters the spray chamber via the fuel inlet hose A portion of the total oxidant flow is used to nebulize the sample into the spray chamber while the other portion enters the chamber via the auxiliary oxidant hose An impact device flow spoiler or impact bead is inserted into the spray chamber The larger aerosol droplets that are not carried by the gas flow around the flow spoiler condense out at the bottom of the spray chamber and run to waste through the drain It is important to prevent large droplets from reaching the flame since they can pass through the flame without being completely decomposed this can lead to solute volatilization and vapor phase interferences If required an impact bead can be positioned in front of the nebulizer venturi The impact bead leads to an improvement in the sensitivity for elements that are determined in the air acetylene flame when the sample matrix is fairly simple The impact bead is not suitable for use with the nitrous oxide acetylene flame or when the sample matrix contains a relatively high salt content In the flame the aerosol is desolvated the resulting solid particles are decomposed and the analyte is atomized The gas control system monitors and regulates the fuel and oxidant flows to the burner Operation of the burner including flame ignition flame shutoff and gas flow rate settings is controlled via the computer and the AA WinLab software The syste
58. r than horizontally to prevent liquid acetone from reaching the cylinder valve The practice of cracking the valve of an acetylene tank that is opening the valve slightly for a very short period previous to attaching the regulator is not recommended While such an action will clear the valve opening of dust or dirt particles and may remove acetone from the cylinder valve it is a potentially hazardous practice and one which should never be attempted in the presence of an open flame sparks or other possible sources of ignition 0993 5257 Burner System 4 Parts and Supplies Contents page Obtaining supplies replacement parts and accessories 2 0 0 cece eee eee 4 3 Burner Components es ereo A tace eed Gee tae ee beh ek 4 5 Burner gasket kit ion pox ene etn see AA AD Ry dye 4 5 Burner heads Ggs eeu e bbe a E LEER 4 5 Drain system zu roots USN PRS DX x UR eee ee eae het C SEE SON ME 4 5 Nebulizers and components oo 4 6 4 1 0993 5257 Parts and Supplies 4 2 0993 5257 Parts and Supplies Obtaining supplies replacement parts and accessories 0993 5257 Supplies replacement parts and accessories can be ordered directly from PerkinElmer using the part numbers quoted in this guide PerkinElmer s catalog service offers a full selection of high quality atomic spectroscopy supplies through the Atomic Spectroscopy Supplies Catalog To place an order for supplies and many replacement parts request a
59. rbing safety glasses when looking at the flame dansk Advarsel Ultraviolet str ling farligt for jnene Flammen is r lattergas acetylen flammen kan emittere ultraviolet str ling som kan for rsage jenskader Hold br nderd ren lukket n r flammen br nder medmindre De er n dt til at justere br nderen som beskrevet i brugervejledningen B r altid beskyttelsesbriller som absorberer ultraviolet str ling n r De ser ind i flammen Deutsch Warnung UV Strahlung Gef hrdung der Augen Die Flamme besonders die Lachgas Acetylen Flamme emittiert UV Strahlung und kann dadurch Augensch den verursachen Halten Sie bei brennender Flamme die Probenraumt r m glichst geschlossen Tragen Sie eine Schutzbrille die die emittierte UV Strahlung ausreichend absorbiert wenn Sie in die brennende Flamme schauen espa ol Advertencia Radiaci n ultravioleta Peligro de da os a los ojos La llama especialmente la de xido nitroso acetileno puede emitir radiaciones ultravioletas perjudiciales para los ojos Mantenga cerrada la puerta del mechero mientras est ardiendo la llama salvo que usted necesite ajustar el mechero tal como lo especifica la documentaci n para el usuario Al dirigir la vista a la llama utilice siempre las gafas de seguridad espec ficas para estos rayos francais Danger Rayonnement UV La flamme en particulier la flamme d oxyde nitreux ac tyl ne peut mettre des UV susceptibles d
60. roso acetileno emite radiac es UV podendo assim provocar ferimentos aos olhos Mantenha a porta do queimador fechada enquanto a chama estiver acesa a n o ser que seja necess rio ajustar o queimador conforme descrito na documenta o do usu rio Use culos de protecc o que absorvam suficientemente a radiac o UV emitida ao olhar directamente para a chama Varo UV s teily silm vammojen vaara Liekki erityisesti ilokaasu asetyleeni liekki saattaa l hett UV s teily joka voi vahingoittaa silmi Pid poltinkammion luukku kiinni liekin palaessa ellei Sinun tarvitse s t poltinta kuten k ytt j dokumentaatiossa on selostettu K yt aina UV s teilylt suojaavia suojasilm laseja kun katsot liekkiin Varning UV str lning risk f r gonskador L gor framf r allt lustgas acetylenl gor alstrar UV str lning som kan ge gonskador Lat br nnarens d rr vara st ngd s l nge l gan brinner om inga justeringar m ste utf ras enligt anvisningarna i anv ndarmanualen Anv nd alltid skyddsglas gon som absorberar UV str lar n r du tittar in i l gan 0993 5257 6 7 Translations of Warnings A W4 2 Warning High Temperatures Risk of Burns The burner head can reach very high temperatures Do not touch the burner head until it has cooled to room temperature dansk Deutsch espa ol francais italiano Nederlands portugu s suomea sv
61. rtant un masque travailler dans une hotte ferm e et respecter les instructions du fabricant et les r glements de s curit de l entreprise 6 14 0993 5257 Translations of Warnings gt Warning continued W8 6 italiano Nederlands portugu s suomea svenska Pericolo Acido cloridrico Rischio di ustioni L acido cloridrico HCl corrosivo e pu causare severe ustioni Se utilizzate acido cloridrico indossate sempre indumenti protettivi comprendenti una maschera lavorate in una cappa per fumi e osservate le istruzioni del produttore cosiccome le norme di sicurezza vigenti localmente Waarschuwing Chloorwaterstofzuur Etsingsgevaar Chloorwaterstofzuur HCl is corrosief en sterk etsend Draag tijdens het gebruik van chloorwaterstofzuur een veiligheidsbril of gezichtsmasker veiligheidshandschoenen en zuurbestendige veiligheidskleding en werk in een ruimte waarin wordt afgezogen Neem de risicorichtlijnen en de veiligheidsvoorschriften van de fabrikant en die ter plaatse in acht Aviso cido hidrocl rico perigo de queimaduras cido hidrcl rico HCI corrosivo e pode causar queimaduras graves Ao lidar com cido hidrocl rico use sempre vestu rio de protecc o incluindo uma m scara de protec o trabalhe dentro de um exaustor e respeite as instru es do fabricante bem como as regulamenta es locais em mat ria de seguran a Varo Suolahappo vaarana sy
62. ry of the procedure 1 6 7 8 Switch on the system see Switching on the system in the Spectrometer User 5 Guide If necessary move the burner system into the atomizer compartment procedure page 2 6 Create or open a method see the Online Help in AA WinLab If you intend to make emission measurements in the Method Editor on the Inst page for Signal Type select Emission If you intend to make absorption measurements install the lamps that you require see Installing lamps in the Spectrometer User s Guide Set up the burner system procedure page 2 7 Perform the safety checks see page 2 20 Ignite the flame procedure page 2 21 You should now set up the nebulizer then optimize the burner and nebulizer before checking the sensitivity Refer to the Online Help in AA WinLab Preparing for Analyses Selecting the atomizer If the atomizer you require is not currently located in the atomizer compartment follow the steps below to move it into the compartment AS Warning Moving Parts Risk of Injury Some moving parts of the instrument are accessible in normal operation Keep hands clothing and other objects away from the moving parts of the instrument 2 6 5 Make sure that the furnace autosampler is swivelled from in front of the atomizer compartment to the standby position at the right and that the nebulizer sample tube is not connected to an external accessory
63. s fernhalten 1 4 0993 5257 Burner System 2 Preparing for Analyses Contents page Atomizer compartment door 2 3 Raising and lowering the door 2 3 Removing and refitting the door 2 4 Setting up the system for analyses using the flame technique 2 5 Selecting the atomizer si LEER EORR eR REOR id EE DELE PLE EU DES 2 6 Setting up the burner system 2 7 Changing a burner head eege R er a a A bp dE uie 2 8 Changing the nebulizer 2 cer hem ds baie 2 10 Flow spoiler and impact bead 0 cette t ene ne nee 2 15 Installing solvent resistant components in the burner 2 17 Adding water to the drain map 2 19 Safety checks oi iii idad Se eee Das 2 20 Harris the flame peere ensine Seege dE Sas 2 21 Emergency shutdown ii did ned 2 23 2 1 0993 5257 Preparing for Analyses 2 2 0993 5257 Preparing for Analyses Atomizer compartment door Raising and lowering the door Perform the steps below to raise or lower the atomizer compartment door Latch button Figure 2 1 Raising or lowering the atomizer compartment door 1 Place the fingers of your left hand behind the grip and press the latch button with your thumb 2 Keeping the latch button pressed in raise or lower the atomizer compartment door to the end stop preferably holding the door with both hands You can also leave the door in any intermediate position when you release the
64. s from the drain vessel Then add water to the drain trap to activate the function You may perform the following burner system maintenance procedures Clean the burner head Disassemble the burner system for cleaning Clean the nebulizer Empty the drain vessel and clean the drain system 3 3 Burner System Maintenance Checklist for regular maintenance tasks If you analyze samples that have dirty matrices such as blood sugar or oil you will probably have to clean the components more often than if you were analyzing clean samples such as drinking water Burner system maintenance checklist Burner system Always rinse the burner system correctly before extinguishing the flame procedure page 3 7 If you are analyzing samples with high solids content Clean the spray chamber at least once daily procedure page 3 14 If you are using organic solvents Clean the spray chamber before you switch to aqueous solutions procedure page 3 14 Empty the drain vessel and dispose of hazardous solutions properly If you are analyzing samples containing high concentrations of copper silver or mercury Thoroughly flush the spray chamber and drain tube immediately after completing such analyses procedure page 3 15 Empty the drain vessel and dispose of hazardous solutions properly Burner head Inspect the burner head for deposits before igniting the flame The burner should provide an even flame o
65. se a plastic or wooden probe to dislodge it 3 23 Burner System Maintenance 3 24 Using a2 mm Allen wrench undo the two screws that retain the black magnet assembly on the nebulizer side arm Take care not to lose the screws Pull the nebulizer oxidant tube from the side arm with a rocking motion Magnet assembly Side arm Nebulizer oxidant tube Figure 3 8 Removing the nebulizer oxidant tube Disassembling the nebulizer Note Do not disassemble the nebulizer unless you are sure that the cleaning procedures described above did not restore the nebulizer performance The performance characteristics of the nebulizer can be modified by disassembly Refer to Figure 3 9 when disassembling the nebulizer l 2 Remove the nebulizer from the burner end cap procedure page 3 23 Unscrew and remove the regulator termed adjustment nut or knurled knob in some documents that accompany the nebulizer Remove the capillary assembly from the nebulizer body by carefully pulling it out of the body Remove the sample tube and the PTFE disk from the capillary assembly Note Do not remove the sample tube from the corrosion resistant plastic nebulizer it is an integral part of the capillary assembly 0993 5257 Burner System Maintenance 5 Remove the venturi O ring from in front of the end cap 6 Unscrew and remove the front end cap and pull out the venturi 7 Remove the nebulizer insert by pushin
66. set vers ttning av varningstexter Detta avsnitt inneh ller vers ttningar av de varningstexter som anv nds i handboken Translations of Warnings A W1 2 Warning Unauthorized Adjustments and Servicing Only a PerkinElmer service engineer or similarly trained and authorized person should be permitted to service the instrument Do not attempt to make adjustments replacements repairs or modifications to this instrument except as described in the documentation supplied with the instrument dansk Deutsch espanol francais Advarsel Ikke tilladte indstillinger og arbejder p apparatet Vedligeholdelse af apparatet er kun tilladt for PerkinElmer kundeservice ingenigren eller tilsvarende uddannede og autoriserede personer Prov ikke p at foretage indstillinger udskiftninger reparationer eller aendringer af apparatet som ikke er beskrevet i den dokumentation der er vedlagt apparatet Warnung Unzul ssige Arbeiten am Ger t Wartungs oder Reparaturarbeiten oder Justierungen die in der Benutzerdokumentation zum Ger t nicht beschrieben sind d rfen nur vom PerkinElmer Kundendienst oder von entsprechend ausgebildeten und autorisierten Fachkr ften ausgef hrt werden Advertencia Ajustes y servicios sin autorizaci n Tan s lo un ingeniero de Servicio T cnico de PerkinElmer o una persona de formaci n y autorizaci n similares podr n realizar trabajos de revisi n y mantenimiento del instrumento No
67. ssembly 2 Hold the burner head so that the magnetic strip on the burner head ring is at the back facing the igniter assembly 3 Insert the stem of the burner head into the neck of the spray chamber and gently push it down with a slight twisting action until it bottoms in the neck of the spray chamber 4 Release the safety latch Make absolutely certain that the hook on the latch is positioned over the burner head ring 5 Swing the igniter arm carefully by hand over the burner head to check that it does not strike the burner head 6 Carefully rotate the burner head to align the appropriate positioning notch with the arrow on the spray chamber 7 Refit the atomizer compartment door procedure page 2 4 This completes installation of the burner head You should now set up the nebulizer then optimize the burner and nebulizer before checking the sensitivity Refer to the Online Help in AA WinLab 0993 5257 2 9 Preparing for Analyses Changing the nebulizer If the nebulizer installed in the burner system is not suitable for your planned analyses change it as described below for example the standard nebulizer is installed and you require the corrosion resistant nebulizer To remove the nebulizer Nebulizer clamp Nebulizer clamping screw Nebulizer Nebulizer oxidant __ tube Figure 2 5 Removing the nebulizer 1 Where applicable extinguish the flame allow the burner head to cool shut
68. stic capillary assembly with long integral sample tube for use with an autosampler 0057 0957 B Venturi Stainless steel AEN REENEN heres 0303 1810 Platinum alloy 0303 3124 PLASTIC 4 zoe LO cea ida edd dade T als 0303 1920 l Regulator oko E ERR DRE RS TA ane eds 0303 1460 2 PTEEdisk i ERE EEUU Ee 0303 1802 3 O ring on capillary assembly 0990 2102 Ae SPANO esses ae hts Shain E ela dus 0303 1806 5 Int is 0990 2005 6 Inserts ox n xe bea UE Te eb us 0303 1812 T XLEockmgrng 2 2 Re ERRARE EA quA EDS d 0303 1456 8 Nebulizer body 0303 0353 9 Bnd Cap gt anc av deans teenie bows dea e C D Ed 0303 1808 IO Ocrmg joe neret tig Rea ne E t Ren f E Ron 0990 2239 11 Magnet tube clamp assembly o o o N040 1159 12 Barimagnet 2 52254 Sep AREA 0992 3133 4 7 Parts and Supplies 4 8 0993 5257 Burner System Description 5 Contents page Burner system design iios isse e KEEN KN 5 3 How the burner system works 5 4 Burner components ii e Poe a 5 6 0993 5257 Burner System Description 5 2 0993 5257 Burner System Description Burner system design The burner system used in the spectrometer system is of the premix design The measurement solution is sprayed by a pneumatic nebulizer into the spray chamber in the form of an aerosol This aerosol is thoroughly premixed with the burner fuel and oxidant gases in the spray chamber This gas mixture then passes through the burner slot into
69. the flow spoiler from inside the spray chamber Unscrew the two milled posts securing the spray chamber to the burner carriage and remove the spray chamber Unscrew the retaining ring from the spray chamber and remove the burner head O ring Burner System Maintenance Drain interlock connector a Compression fittings Auxiliary oxidant hose 7 L Fuel hose Drain fitting Figure 3 2 Disconnecting the burner end cap 3 10 0993 5257 Burner System Maintenance Cleaning the burner system The nature of the samples aspirated determines how frequently you need to clean the burner system The burner should provide an even flame over the length of the burner slot An uneven flame may indicate that the slot needs cleaning A badly clogged slot may cause a flashback of the flame Aspirating samples with high solids content may cause deposits to build up along the burner slot Prolonged operation of the nitrous oxide acetylene flame may cause deposits of pyrolytic carbon to build up along the burner slot Cleaning the burner head Quick cleaning procedure Warning High Temperatures Risk of Burns The burner head can reach very high temperatures Do not touch the burner head until it has cooled to room temperature 0993 5257 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Remove the
70. trip N040 0102 10 cm N040 0103 10 cm 3 slot air acetylene operation air acetylene operation ES Figure 5 4 The available burner heads e N040 0100 5 cm single slot burner head for nitrous oxide acetylene operation e N040 0101 5 cm single slot burner head for air acetylene operation This burner head is shorter than the standard 10 cm burner head and thus provides reduced sensitivity e N040 0102 10 cm single slot burner head for air acetylene operation This burner head is provided as standard with the system e N040 0103 10 cm three slot burner head for air acetylene operation This burner head is designed for the analysis of solutions with high dissolved solids content Solution can be aspirated for long periods without the burner slot becoming clogged 5 8 0993 5257 Burner System Description 0993 5257 The flame igniter The flame igniter assembly includes the components to automatically ignite the flame the burner head sensor which checks that a burner head is installed and the flame detector which monitors the flame When the igniter is activated the igniter arm swings over the burner head and a glow plug is energized Burner gases pass into the igniter tube and are ignited by the glow plug thus igniting the flame The gas controls The gas controls provide control of the flowrates of the fuel gas acetylene and the oxidant air or nitrous oxide The spectrometer incorporates PerkinElmer
71. ts 1 3 Warning markings on the burner system 1 4 1 1 0993 5257 Safety Information 1 2 0993 5257 Safety Information Introduction The guides provided with your analytical instrument contain information and warnings that you must follow to ensure safe operation and to maintain the instrument in a safe condition This advice is intended to supplement not supersede the normal safety code of behavior prevailing in the country of operation General safety practices for atomic spectroscopy and potential hazards with various atomic absorption techniques are described in the User s Guide for the atomic absorption spectrometer Please refer to that guide before you operate the system The information provided does not cover every safety procedure that should be practiced Ultimately maintenance of a safe laboratory environment is the responsibility of the user and the user s organization Correct use of analytical instruments Before you install or use your instrument and in order to get the best results you should be familiar with all of the instruments in the system and know how to operate them You should also be aware of the safety procedures in force in your laboratory especially those concerning atomic spectroscopy instruments Read the guides supplied with the instruments before you start If you use the instrument in a manner not specified in the guides or if you use it for a purpose other than that inte
72. uptake and thus the sensitivity will decrease Recommended length 20 cm The burner head is clean The burner is correctly optimized see the Online Help in AA WinLab 3 20 0993 5257 Burner System Maintenance Clearing an obstruction in the nebulizer If you suspect that there is an obstruction in the nebulizer try to clear it as follows Quick procedure 1 With the flame burning aspirate pure solvent until a subsequent characteristic concentration measurement gives the expected result If this fails to remedy the problem go on to the procedure below Full procedure Caution Risk of damage to the corrosion resistant plastic nebulizer The sample tube on the plastic nebulizer 0303 0404 is an integral part of the nebulizer capillary assembly Do not remove the sample tube from the plastic nebulizer 1 Remove the nebulizer from the burner end cap procedure page 3 23 2 Remove the sample tube from the end of the nebulizer capillary 3 Take one of the copper cleaning wires provided with the nebulizer and very carefully push it through the nebulizer capillary from the inlet side Move the wire carefully in and out to dislodge any particles Note Use only the copper cleaning wires provided 0303 0135 Other wires may be burred and damage the nebulizer Use a straight section of the cleaning wire to avoid scratching the interior of the capillary assembly Nebulizer capillary inlet side
73. utes 2 Rinse the burner head well with deionized water 3 Blow the burner head dry with clean compressed air Wear safety glasses when doing this 4 Reinstall the burner head procedure page 2 9 5 Refit the atomizer compartment door procedure page 2 4 Checking the slot width Over time the burner slot becomes wider due to abrasion The level of abrasion depends on the types of solutions you are aspirating A burner slot that is too wide causes unstable flame conditions and in the worst case may cause a flashback of the flame For this reason you should check the width of the burner slot at regular intervals You require a set of feeler gauges to check the slot width 3 12 0993 5257 Burner System Maintenance 0993 5257 The table below specifies the correct slot width and the feeler gauge required for checking Burner Head Slot Width Tolerance Feeler Gauge for check air acetylene 0 65 mm 0 075 0 025 mm 0 7 mm 5 cm and 10cm 0 026 inch 0 003 0 001 inch 0 030 inch N5O acetylene 0 5 mm 0 025 mm 0 5 mm 0 020 inch 0 001 inch 0 020 inch To check the slot width 1 Carefully slide the specified feeler gauge through the length of the burner slot The gauge must fit tightly in the slot 2 Ifthe gauge is loose in the slot the slot is too wide Then discard the burner head and use a new one Burner head surface The condition of the top surface of the
74. vents may cause the respective gaskets to swell This may result in a seepage of gas which is a serious fire hazard Before you aspirate organic solutions remove the respective gaskets and install solvent resistant gaskets Warning Flammable Gases Fire and Explosion Hazard Exchange this O ring before aspirating organic solvents End cap O ring 0993 5257 2 18 Preparing for Analyses Adding water to the drain trap 0993 5257 The drain vessel includes an internal trap to make certain that burner gases cannot escape into the drain vessel more information page 5 9 Enough water must be present in the drain system to fill the drain loop and to activate the drain float If not carry out the following procedure 1 Remove the atomizer compartment door procedure page 2 4 2 Remove the burner head procedure page 2 8 3 Pour about 250 mL deionized water slowly through the neck of the spray chamber to fill the drain trap and activate the drain float 4 Reinstall the burner head procedure page 2 9 5 Refit the atomizer compartment door procedure page 2 4 Preparing for Analyses Safety checks Before igniting the flame always make sure that The fume ventilation system for the laboratory is switched on The burner head is correctly installed and the end cap is secured The correct nebulizer is fitted and that it is correctly secured The correct gaskets are fitted in th
75. ver the length of the burner slot An uneven flame may indicate that the slot needs cleaning Clean if necessary procedure page 3 11 Check the width of the burner slot periodically procedure page 3 12 Nebulizer If there is an obstruction in the nebulizer clear it using a copper cleaning wire procedure page 3 21 Drain system Flush the drain system thoroughly at the end of each working day procedure page 3 32 Drain vessel Empty the drain vessel regularly procedure page 3 33 Do not allow it to fill with corrosive toxic or organic solutions Dispose of hazardous solutions properly Drain trap Periodically remove the drain trap assembly from the drain vessel and clean it assembly procedure page 3 34 3 4 0993 5257 Burner System Maintenance Drain tube Inspect the drain tube regularly for wear and or chemical attack Replace it if it has deteriorated procedure page 3 36 Gas hoses Check the gas hoses regularly for leaks particularly at the fittings using a proprietary leak testing fluid Call a PerkinElmer service engineer if a leak is detected O rings Check the condition of the O rings regularly burner end cap O ring or gasket see Figure 3 3 burner head O ring see Figure 3 3 four O rings on the nebulizer see Figure 3 9 Acetylene cylinder If the cylinder pressure falls to below 600 kPa 6 bar 87 psig some of the solvent us
76. verd is Aviso Trabalhos n o permitidos no aparelho Trabalhos de manuten o apenas podem ser executados pelo Servi o T cnico da PerkinElmer ou por pessoal especializado devidamente formado e autorizado e Nao tente realizar ajustamentos substitui es repara es ou modifica es neste aparelho que n o estejam descritos na documenta o fornecida com o aparelho Varo Luvattomat s t ja huoltoty t Laitteen huoltoty t saa antaa vain PerkinElmer huoltoteknikoiden tai vastaavasti koulutettujen ja valtuutettujen henkil iden teht v ksi l tee muita s t vaihto korjaus tai muutost it t ss laitteessa kuin sellaisia jotka on selostettu laitteen mukana toimitetussa dokumentaatiossa Varning Icke till tna arbeten p apparaten Endast servicepersonal fr n PerkinElmer eller personal med liknande utbildning och beh righet f r utf ra servicearbeten p apparaten Underh lls eller reparationsarbeten justeringar eller ndringar som inte finns beskrivna i anv ndarmanualen till apparaten f r inte utf ras 0993 5257 6 5 Translations of Warnings W3 4 UV gt PF 3 Warning UV Radiation Risk of Eye Damage o y L The flame especially the nitrous oxide acetylene flame may emit UV radiation which can x damage your eyes Keep the burner door closed when the flame is burning unless you need to adjust the burner as described in the user documentation Always wear UV abso
77. wn you do not need to disconnect any of the hoses Install the flow spoiler 1 0993 5257 Slide the cleaned flow spoiler fully back into the spray chamber such that one of the vanes is in the six o clock position Press the center of the flow spoiler with your index finger and push it in until it is firmly seated Lower vane in six o clock position Preparing for Analyses Install the impact bead The stem of the impact bead is seated in a small hole on the inside of the burner end cap just above the drain orifice 1 Moisten the stem of the impact bead with water for easier installation 2 Carefully hold the stem of the impact bead and press it firmly through the two O rings inside the hole until it bottoms in the seat Do not press on the bead itself hold it only by the stem to prevent breakage If sample residues have partially filled the end cap hole you may not be able to seat the impact bead Then remove the retaining plate and clean the hole as described on page 3 15 3 Carefully rotate the stem to center the bead on the nebulizer orifice as shown below Nebulizer orifice Impact bead Drain orifice Reassemble the burner system Reassemble the burner system as described in Reassembling the burner system on page 3 16 2 16 0993 5257 Preparing for Analyses Installing solvent resistant components in the burner The standard O ring in the burner end ca
78. xtinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 2 Remove the atomizer compartment door procedure page 2 4 3 Remove the burner head procedure page 2 8 4 Pour about 250 mL deionized water slowly through the neck of the spray chamber to fill the drain trap and activate the drain float 5 Reinstall the burner head procedure page 2 9 6 Refit the atomizer compartment door procedure page 2 4 Cleaning the drain trap assembly The drain trap assembly is located inside the drain vessel Periodically you should remove the assembly and clean it Retainer cap Drain interlock connector Drain loop Figure 3 15 Drain trap assembly 3 34 0993 5257 Burner System Maintenance 0993 5257 ji mo we G9 Extinguish the flame allow the burner head to cool shut down the gases at source and bleed the gas supply lines procedure page 3 7 Switch off the spectrometer Flush the drain system procedure page 3 32 Unscrew the retainer cap from the drain vessel Carefully lift out the drain trap assembly Do not disconnect the electrical lead Place the drain trap assembly into a suitably large bucket or container so that it is vertical If the drain tap assembly is laid on its side liquid can run out onto the floor Clean the drain trap assembly carefully with mild laboratory detergent solution using
79. y through the neck of the spray chamber to thoroughly flush the chamber and the drain system Empty the drain vessel procedure page 3 33 Note Dispose of hazardous or corrosive solutions properly and refer to your local safety regulations for proper disposal procedures 0993 5257 Burner System Maintenance Cleaning the spray chamber after aspirating solutions containing Cu Ag or Hg If you have aspirated high concentrations of copper silver or mercury solutions into an acetylene flame unstable acetylides may have formed in the spray chamber If permitted to dry these compounds may explode l 2 Aspirate dilute acid 1 V V HCI solution for 5 minutes Extinguish the flame and allow the burner head to cool procedure page 3 7 Remove the burner head procedure page 2 8 Pour a large quantity of deionized water slowly through the neck of the spray chamber to thoroughly flush the chamber and the drain system Empty the drain vessel procedure page 3 33 Note Dispose of hazardous or corrosive solutions properly and refer to your local safety regulations for proper disposal procedures Cleaning the inside of the burner end cap Sample residues may collect in the hole for the impact bead in the end cap Periodically you should clean out sample residues Also if the impact bead is broken part of the stem may remain in the hole You must remove the retaining plate in order to remove any broken portion 1
80. zer without a correctly installed O ring Venturi O ring 3 Install the nebulizer in the burner end cap 1 Lift up and hold the nebulizer clamp 2 Holding the nebulizer with the side arm to the right insert the nebulizer into the port in the end cap 3 Push the nebulizer into the end cap as far as it will go The nebulizer side arm must be located in the slot in the end cap 0993 5257 3 29 Burner System Maintenance 4 Lower the nebulizer clamp making sure that it locks over the nebulizer flange and then tighten the nebulizer clamping screw 5 Pull on the nebulizer gently to make sure that the nebulizer clamp is properly engaged 6 Make sure that the magnet assembly fits snugly alongside the burner end cap and that the magnet is facing the nebulizer interlock sensor see Figure 3 13 Nebulizer clamp AN Nebulizer clamp must be lowered and locked in raised position over the nebulizer flange Nebulizer flange Nebulizer side arm located in side arm slot Figure 3 12 Securing the nebulizer 3 30 0993 5257 Burner System Maintenance Nebulizer interlock sensor Magnet assembly Figure 3 13 Aligning the magnet assembly This completes installation ofthe nebulizer You should now set up the nebulizer then optimize the burner and nebulizer before checking the sensitivity Refer to th

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