MKII Golden Gate™ Single Reflection ATR System User Manual
Contents
1. Note Fit a 12000 Series polarizer at this stage if required 4 Fit the flexible purge bellows over both end apertures as seen at Fig 15 and compress sufficiently to enable the assembly to fit into the spectrometer 5 Ensure the bellows are not obstructing the beam and then tighten the accessory fixing thumb screw 4 to secure the Golden Gate ATR optical unit back onto the Benchmark base plate 23 User Manual 7 Changing Lenses in the MKII Golden Gate Optical Unit The MKII Golden Gate ATR accessory is provided with ZnSe or KRS 5 beam condensing lenses If you wish to change from one set of lenses to the other they are available as upgrade kits 10552 ZnSe Lens 2 Upgrade Kit 10508 KRS 5 Lens 2 Upgrade Kit Removing Lenses 1 The front cover 6 of the optical unit is removed by loosening the thumb screws 5 to gain access to the optics Fig 16 Changing the Lens Assemblies in a MKII Golden Gate ATR System 24 MKII Golden Gate Single Reflection ATR System Any Golden Gate ATR Top Plate being used must be removed from the optical unit This is achieved by loosening the two thumb screws 3 on the Top Plate and lifting it up and away from the optical unit The lens assemblies in the optical unit are moved by the tiller bars 12 see Fig 16 Remove the tiller bars from the lens barrels by unscrewing anticlockwise Loosen the locking screw 11 making the lens barrel free to move in the2. 7 Double mirror mount 8 Adjustment screw 9 Adjustment screw 10 Spring mounted mirror 11 Locking screw 12 Tiller bar 13 Lens barrel 14 Outer casing 15 Aperture 16 Purge port 17 Bellows not shown 18 Crystal 19 Clamp bridge 20 Compression head anvil 21 Torque limiter screw 22 Torx head screw fixing 23 Quick lock and release mechanism 24 Stay up device 25 Bridge support 26 Sample screw clamp 42 MKII Golden Gate Single Reflection ATR System 11 Spare Parts for MKII Golden Gate ATR For details of upgrade options and spares for your Golden Gate diamond ATR unit please contact your local Specac office MKII Golden Gate Top Plate Upgrades 10563 Diamond 45 ATR Top Plate 10565 Wire Holder Diamond 45 ATR Top Plate 10566 Germanium 45 ATR Top Plate 10540 Heated Diamond 45 ATR Top Plate and Temperature Controller specify voltage 110 V or 220 V 10640 High Temperature Heated Diamond 45 ATR Top Plate and Temperature Controller specify voltage 110 V or 220 V 10514 Microspecular Reflection Top Plate 10507 Reaction Cell Diamond 45 ATR Top Plate and Temperature Controller specify voltage 110 V or 220 V 10590 Low Temperature Diamond 45 ATR Top Plate and Temperature Controller specify voltage 110 V or 220 V 10585 Supercritical Fluid Diamond 45 ATR Top Plate and Temperature Controller specify voltage 110 V or 220 V Spare Lenses 1
3. Oriel GmbH amp Co KG Darmstadt Tel 06151 88060 Fax 06151 880689 email info LOT Oriel de Website www LOT Oriel com de Japan Systems Engineering Inc Tokyo Tel 03 3946 4993 Fax 03 3946 4983 email systems eng systems eng co jp Website www systems eng co jp Spain Teknokroma S Coop C Ltda Barcelona Tel 93 674 8800 Fax 93 675 2405 email comercial teknokroma es Switzerland Portmann InstrumentsAG Biel Benken Tel 061 726 6555 Fax 061 726 6550 email info portmann instruments ch Website www portmann instruments ch USA Specac Inc 50 Sharpe Drive Cranston RI 02920 USA Tel 401 854 5281 Fax 401 463 6206 Toll free 1 800 447 2558 United Kingdom Specac Ltd London River House 97 Cray Avenue Orpington Kent BR5 4HE Tel 44 0 1689 873134 Fax 44 0 1689 878527 Registered No 1008689 England Innovative Solutions For Infrared Spectroscopy www specac com SPECAC INC SPECAC LTD 50 Sharpe Drive River House 97 Cray Avenue Cranston Orpington RI 02920 USA Kent BR5 4HE Tel 401 854 5281 Tel 44 0 1689 873134 Fax 401 463 6206 Fax 44 0 1689 878527 Toll free 1 800 447 2558 Registered No 1008689 England SMITHS INDUSTRIES Aerospace Medical Systems Industrial
4. mount plate used in the spectrometer from the spectrometer sample compartment Place the Benchmark Quicklock baseplate into the sample compartment with the two location pins and tapped hole on the front edge of the support plate to the front of the compartment The baseplate locates securely by connection to the rear with the electric plug sockets and a push clip at the front Bruker IFS113 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer from the Bruker baseplate Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The two fixing screws and dowel pins of the plate are passed through the slots of the Bruker plate and the two screws are turned anti clockwise to tighten the plates together Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Jasco All Jasco models Beam direction Left to Right Remove the spectrometer cover and 3 x 2 sample mount to gain access to the sample compartment Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head M4 screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb scre
5. 31 User Manual 9 Sampling using the Accessory General Principles When using the MKII Golden Gate Single Reflection ATR accessory the sample is placed onto the crystal area 18 of the top plate The contact between sample and crystal is improved using the clamp bridge 19 and an appropriate compression head anvil 20 For diamond top plates the diamond crystal is brazed into a surrounding support disc of tungsten carbide The germanium top plate has a germanium crystal glued into a stainless steel support disk Specific details for all top plate options can be found in Section 3 of this manual The diamond ATR top plate is used to illustrate sampling in this manual If using a germanium top plate the stainless steel flat anvil compression head 10567 should be used where the sapphire anvil 10531 has been shown for the diamond top plate Fig 25 Front View of MKII Diamond ATR Top Plate Bridge Closed 32 MKII Golden Gate Single Reflection ATR System Fig 26 Angled View of MKII Diamond ATR Top Plate Bridge Open Features of the MKII Golden Gate Clamp Bridge Torque Limiter Screw The MKII Golden Gate Single Reflection ATR top plates are provided with a special built in torque limiter screw 21 When the torque limiter screw 21 is turned clockwise it will provide a maximum load of 80lbs spread over the area of the anvil face to the sample After this load has been achieved the screw rotates witho
6. MKII Golden Gate Single Reflection ATR System the ATR crystal These anvils can be used on all diamond ATR plates and are supplied as standard with the wire holder top plate Fig 20a Fig 20b Stainless Steel Anvils 10549 and 10567 Figs 21a amp 21b These anvils can be used in place of the sapphire flat anvils if desired The large stainless steel anvil 10567 should always be used with the germanium top plate it is the anvil supplied with this top plate Ge Fig 21a Fig 21b Reactive Sample Anvil 10536 Fig 22 This is a sapphire anvil with an Isolast O ring around the outer edge When clamped in position an air tight seal is formed around the sample being held in contact against the ATR crystal Air sensitive samples can be positioned on a top plate in a controlled environment for example a glove box or fume cupboard The top plate and anvil can then be taken from the controlled area and placed on the Golden Gate optical unit in the spectrometer This anvil can be used on all diamond ATR top plates and if the sample is relatively soft with the germanium top plate Fig 22 29 User Manual Micro Reaction Flow Cell Anvil 10568 Fig 23 This anvil is made of stainless steel and has 1 16 flow tubes to allow liquids to flow across the ATR crystal It can be used at pressures up to 1000 psi and temperatures up to 300 C The internal volume of the cell is 28 microlitres The micro reaction flow cel
7. pin stud locations and four ball catches on three sides of the baseplate edges Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Nicolet 5DX 5SX 1MX 5MX 10DX Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the two location pins and tapped hole in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the two Benchmark location pins and secure using the captive thumb screw into the tapped hole at the front Nicolet Impact 400 Beam direction Left to Right Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front 51 User Manual Perkin Elmer PE1700 PE1800 Beam direction Left to Right Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to
8. 120 Beam direction Left to Right Remove the spectrometer cover and 3 x 2 sample mount to gain access to the sample compartment Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Fix the Benchmark baseplate to the spectrometer platform with the two 10 32UNC screws supplied 46 MKII Golden Gate Single Reflection ATR System Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Bomem MB100 Series 155 157 Beam direction Left to Right Remove the spectrometer cover and 3 x 2 sample mount to gain access to the sample compartment Locate the Benchmark Baseplate onto the kinematic mount of the spectrometer with the three support pillars in a straight line to the front of the compartment This involves placing the screws on the underside of the baseplate on three location features a conical countersink a V slot and a plain flat on the floor of the spectrometer The Benchmark baseplate screws can be adjusted for height and leveling Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Bomem DA3 DA8 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Undo the securing screw in the Benchmark ba
9. The table on page 39 gives a guide to recommended loads for different sample types The optimum load requirements for some typical samples are determined by recording spectra at increasing loads until the desired result is obtained The optional Torque Wrench 10504 with Torx Adapter 10505 not supplied with the MKII Golden Gate should be used for these settings see Fig 30 Optional Torque Wrench There is a torx screw fixing 22 inside the top of the torque limiter screw 21 The torx head adapter piece of the torque wrench fits in to this torx screw fixing in order to turn the torque limiter screw Loads from 33 Ibs up to 160 Ibs 20 cNm to 100 cNm as shown on I the torque wrench can then be applied to L the sample P N 10504 dap PIN 10505 Fig 30 Optional Torque Wrench with Torx Head Adapter 39 User Manual Type of Sample Powders soft Powders hard Films and Plastic fragments Polymer pellets soft Polymer pellets hard Fibers Liquids and Pastes 40 Torque Setting cNm 20 60 40 80 40 80 20 60 60 100 40 80 Nil Approx Load Ibs 33 100 67 133 67 133 33 100 100 160 67 133 Nil MKII Golden Gate Single Reflection A 10 Legend User Manual 1 Top plate 2 Optical unit 3 Thumb screw 4 Thumb screw 5 Thumb screw position for thumb screw thumb screw not shown 6 Optics cover optics cover not shown in Legend diagrams
10. outer casing 14 Carefully remove both lens assemblies by pulling up and out of their casings through the top of the optical unit Fitting New Lenses To fit new lenses the procedure for removal is reversed Carefully slide the new lenses into the casings through the top of the Golden Gate ATR optical unit Fig 17 Simplified diagram showing position of lens assemblies L1 and L2 in the MKII Golden Gate ATR System Note that an ATR Top Plate is also shown in position on top of the optical unit 25 User Manual Important Ensure the holes in the lens barrels that the tiller bars 26 12 screw into are aligned with the front slots in the casings 14 Tighten the tiller bars 12 into their holes in the lens barrels turn clockwise Adjust the position of the new lenses so that they are approximately midway in their casings and tighten the locking screw 11 See the simple diagram Fig 17 to help indicate approximately where the lens should be positioned and how close they will be to the underside of the Golden Gate ATR Top Plate when it is in position on the optical unit The Golden Gate accessory will now need realignment Follow the instructions for alignment at Section 5 of this manual MKII Golden Gate Single Reflection ATR System 8 Anvil Options for the MKII Golden Gate Choice of Anvils and their Uses There are many different compression head anvils that can be used with the Golden Gate Si
11. that your sample is confined to the center of the diamond only if there is a risk of chemical attack upon contact with the other materials of construction A sample spot 2 microns deep with a diameter of 600 microns is sufficient We recommend that a pipette or similar glass capillary tube is used to apply small sample spots to the center of the diamond only The Golden Gate is capable of handling a diverse range of chemically aggressive materials However we recommend that in order to protect your accessory your sample is cleaned off soon after analysis is complete 20 MKII Golden Gate Single Reflection ATR System 6 Fitting Accessories to the ATR Unit When the MKII Golden Gate Single Reflection ATR has been installed and aligned in the spectrometer you have the options of fitting a polarizer and or purging the ATR accessory Fitting a Polarizer The standard Specac polarizers 12000 Series can be fitted to the apertures 15 of the ATR The polarizers push fit in these apertures and can be rotated to the desired orientation The polarizer will transmit at a maximum perpendicular component of the polarized light when it is mounted so that the notch slot in the polarizer holder ring is in the vertical plane Fitting the polarizer to either aperture of the ATR will have the same effect There is also a special Benchmark Rotatable Polarizer Mount Assembly including polarizer P N 12510 that fits directly to the ape
12. 0 cNm approx 33 Ibs Acceptable spectra may be obtained without the requirement for the full load of 100 cNm 160 Ibs 35 User Manual Powders 1 Prepare the accessory for analysis by collecting a background spectrum See 9 1 to 9 2 page 33 2 Ensure the sapphire anvil 20 is firmly fitted to the end of the sample screw clamp 26 by pushing the hollow end over the retaining 0 ring Position the anvil to be parallel to the bridge Note When fitted some movement of the sample compression head 20 is allowed to adjust to the sample shape during compression This movement enables even pressure to be applied across the contact area Apply the powder to the surface of the diamond 18 Gently clamp down the bridge 19 using the bridge quick lock screw 23 ensuring that the anvil is clear of the sample 5 Screw down the anvil 20 via the torque limiter screw 21 When a load of 80Ibs is achieved the screw will rotate freely The sample is now compressed between the diamond and sapphire anvil Record the spectrum of the sample 6 To remove or change the sample release the pressure on the sample by first unscrewing the torque limiter screw 21 before undoing the bridge quick lock thumb screw 23 Rest the bridge up past the stay up catch 24 7 Clean the powder from the diamond and wipe any powder off the sapphire anvil 20 of the compression head Flat Solid Samples Flat solid samples are analyzed i
13. 0508 KRS 5 Lens Upgrade Kit 10552 ZnSe Lens Upgrade Kit Anvil Options 10503 Volatiles Cover 10522 Forensic Sapphire Anvil 10531 Sapphire Anvil 10532 Pellet Anvil 10536 Reactive Sample Anvil 10547 Grooved Anvil Narrow 10548 Grooved Anvil Wide 10549 Stainless Steel Flat Anvil 10567 Large Stainless Steel Flat Anvil for Germanium Top Plate 10568 Microreaction Flow Cell Anvil 10569 View Thru Anvil Bridge Assembly 43 User Manual Spares 10504 Torque Wrench 10505 Torx Adapter for Torque Wrench 10509 Torque Wrench and Torx Adapter Head combined 10707 Purge Bellows 44 MKII Golden Gate Single Reflection ATR System 12 Technical Specification ATR Crystal Diamond Germanium Type Illa Diamond 45 Ge 45 2mmx2mm 4mmx 4mm Accessory 6500 600 cm 5200 650 cm Transmission with ZnSe lenses with ZnSe lenses or Range 6500 400cm KRS 5 lenses with KRS 5 lenses Refractive Index at 2 4 4 0 1000 cm ATR Plate Diamond brazed into Germanium glued into Tungsten Carbide Disc Stainless Steel disc Active Sampling Area 50 of Transmitted Energy 0 8 mm diameter 0 8 mm diameter Maximum Applied Force 100 cNm torque 160 Ibs or 1 78 Kbar 80 cNm torque 128 lbs or 0 36 KBar Depth of Penetration 2 0um For sample of Refractive Index 1 5 1000 cm 0 7um For sample of Refractive Index 1 5 1000 cm 45 User Manual 13 Installa
14. MKII Golden Gate Snecac Single Reflection ATR System User Manual 21 10500 Issue 13 MKII Golden Gate Single Reflection ATR System User Manual 21 10500 Issue 13 User Manual MKII Golden Gate Single Reflection ATR System CONTENTS T INTRODUCTION ae 3 2 UNPACKING AND CHECKLIST errarnnnnnnnnnnrvvvannnnnenenvvrrnvnnnnnnenenrvvnnnnenerene 5 3 TOP PLATES FOR THE MKII GOLDEN GATE ATR rannnunvvervvrannnnnerenr 6 A INSTALLATION ane ke ee 15 5 ALIGNMENT eee rede 16 6 FITTING ACCESSORIES TO THE ATR UNIT aeee 21 7 CHANGING LENSES IN THE MKII GOLDEN GATE OPTICAL UNIT 24 8 ANVIL OPTIONS FOR THE MKII GOLDEN GATE ennnen 27 9 SAMPLING USING THE CCESoOny 32 TO LEGEND EE 41 11 SPARE PARTS FOR MKII GOLDEN GATE ATR vuuuvvvrrnvnnnnnnennnvenrn 43 12 TECHNICAL SPECIFICATION arunnnannnvnrvnvnnnnnnnnnnvvvrnnnnnnenennnrvvrunnenenene 45 13 INSTALLATION OF THE BENCHMADKINDBAGERLATE 46 O June 2008 Specac Ltd All rights reserved Golden Gate Benchmark and Innovative Solutions For Infrared Spectroscopy are trademarks of Specac Ltd Other product names mentioned herein may be trademarks of their respective owners MKII Golden Gate Single Reflection ATR System 1 Introduction Thank you for purchasing a Specac Product The MKII Golden Gate Single Reflection ATR system is a versatile accessory with a number of different sampling options for the quantitative and qualitative analysis of soli
15. Samples smaller than this should be placed centrally on the diamond for optimum results 9 1 Undo the bridge quick lock screw 23 and lift the clamp bridge 19 up past the stay up catch 24 The anvil 20 does not have to be in contact with the diamond 18 crystal face to record a background spectrum 9 2 Ensure the diamond is clean and record a background spectrum Note If itis necessary to clamp the Sapphire Anvil 20 10531 or 10522 directly onto the diamond without a sample e g to 34 MKII Golden Gate Single Reflection ATR System check for contamination care should be taken to ensure that the anvil is level to the diamond crystal This can be done by rotating the anvil 20 slightly before applying pressure Only a small amount of pressure should be needed to check for contamination It is not advisable to apply the maximum pressure loading without a sample Fig 28 Closed Bridge MKII Golden Gate Diamond ATR Top Plate Using for Different Sample Types Important Golden Gate elements are selected for their freedom from natural structural flaws using optical test methods It is possible to over stress the diamond element by applying excessive point loads at the extreme corners If you suspect that your sample may contain exceptionally hard particles ensure that only a small amount of sample is used and is placed centrally on the diamond Do not apply maximum loading immediately Use a torque wrench set to 2
16. ant with all accessories that the maximum throughput is achieved This ensures optimum analytical performance and signal to noise ratio The beam condensing optics unit has six optical components Two mirrors and one lens make up the input system An identical set of mirrors and lens form the output system see Fig 11 Two mirrors M1 and M4 are fixed while the two larger mirrors M2 and M3 have rotation and tilt adjustments The focusing lenses L1 and L2 are adjustable for focus by moving up and down in their supports The beam path diagram shows a Diamond ATR top plate in position but the principles for alignment are the same for any other top plate When aligning the Microspecular top plate its own reference mirror must be placed over the sampling aperture It is always best to start alignment from the output mirror the one nearest the detector Note In these instructions it is assumed M4 is the output mirror If your output mirror is M1 follow the instructions taking the optical components in the reverse order to that shown in Fig 11 16 MKII Golden Gate Single Reflection ATR System Fig 11 Optical Beam Path of Golden Gate ATR System To adjust the alignment of the MKII Golden Gate 1 Loosen the two thumb screws 5 and remove the front cover 6 to reveal the optics See Figs 12 and 13 The diamond top plate has been removed from Fig 13 for clarity Fig 12 Optics Cover Removal from Gol
17. ark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Mattson 8000 New 3 5 beam height Beam direction Left to Right There are two sets of pillars supplied with the baseplate for Mattson spectrometers Long pillars 1 5 for Galaxy Series and short pillars 0 5 for Genesis Series Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment and such that the dowel pins on the underside of the baseplate locate into the floor of the spectrometer Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Midac All Midac models Beam direction Left to Right Remove the spectrometer cover and 3 x 2 sample mount to gain access to the sample compartment Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 10 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Nicolet 500 700 710 740 800 5PC 5SXC Ma
18. as upgrades MKII Diamond ATR Top Plate 10563 Please check on delivery that the following have been included 1 MK II Golden Gate Diamond 45 ATR Top Plate Fig 2 1 Sapphire anvil 10531 1 Pellet anvil 10532 1 Volatiles cover 10503 Fig 2 Angled View of Golden Gate Diamond ATR Top Plate 10563 Corrosive Samples The ATR element in the Golden Gate is high temperature bonded into tungsten carbide using a metal layer Tungsten carbide and diamond have exceptional chemical resistance properties However Specac cannot guarantee the support disk or bonding material against corrosion from all materials particularly under hostile conditions of 6 MKII Golden Gate Single Reflection ATR System elevated temperature We recommend that your sample is confined to the center of the diamond only if there is a risk of chemical attack upon contact with the other materials of construction A sample spot 2 microns deep with a diameter of 600 microns is sufficient We recommend that a pipette or similar glass capillary tube is used to apply small sample spots to the center of the diamond only The Golden Gate is capable of handling a diverse range of chemically aggressive materials However we recommend that in order to protect your accessory your sample is cleaned off soon after analysis is complete MKII Wire Holder Diamond ATR Top Plate 10565 Please check on delivery that the following have been included 1 MKII G
19. d 45 ATR Top Plate 10590 and 10592 Please check on delivery that the following have been included e 1 Low Temperature Diamond 45 ATR Top Plate Fig 8 e 14000 Series Temperature Controller for the Low Temperature Diamond ATR Top Plate Sapphire tipped solids anvil Liquid sample injector insulated hypodermic needle and glass syringe Plastic funnel Long T bar Allen key 5 mm Allen Key 3 mm Glass filled PTFE gaskets 5 High thermal transfer gaskets 20 Spare Viton o ring Manual for operation of Low Temperature Golden Gate Fig 8 Angled View of MKII Low Temperature Diamond ATR Top Plate 10590 The Low Temperature Diamond 45 ATR Top Plate operates over a temperature range of 150 C to 80 13 User Manual Supercritical Fluid Diamond ATR Top Plate 10585 and 10586 Please check on delivery that the following have been included 1 Supercritical Fluid Diamond ATR Top Plate Fig 9 1 4000 Series Temperature Controller for the Supercritical Fluid Diamond ATR Top Plate Manual for SCF Top Plate operation Open Ended Spanner 1 4 5 16 2 off Torque wrench 10504 Socket drive 2 5 mm A F Gaskets 10 Fig 9 Angled View of Supercritical Fluid Diamond ATR Top Plate 10585 The Supercritical Fluid Diamond ATR Top Plate is specified to operate at pressures up to 6000 psi and temperatures up to 300 C A separate manual for the temperature controller is included with this top plate op
20. d top plate 1 Sapphire anvil 10531 1 Pellet anvil 10532 1 Volatiles cover 10503 Fig 5 Angled View of Heated Diamond ATR Top Plate 10540 The heated top plate can be used up to 200 C A separate manual for the 4000 Series temperature controller is included with this top plate option Warning The diamond mounting plate in the heated top plate has a very small air gap around its edge This minimizes heat loss to the surrounding top plate and ensures quick warm up If excessive amounts of solvent are used to clean the diamond it is possible for it to leak past the diamond plate giving solvent absorption bands and softening the adhesive For this reason the diamond should only be cleaned using a tissue moistened with solvent User Manual MKII High Temperature Heated Diamond ATR Top Plate 10640 and 10642 Please check on delivery that the following have been included e 1 MKII High Temperature Heated Diamond 45 ATR Top Plate Fig 5 1 4000 Series Temperature Controller for the heated top plate 1 Sapphire anvil 10531 1 Pellet anvil 10532 1 Volatiles cover 10503 Fig 5 Angled View of High Temperature Heated Diamond ATR Top Plate 10640 The heated top plate can be used up to 300 C A separate manual for the 4000 Series temperature controller is included with this top plate option Note The diamond ATR crystal and tungsten carbide support puck in the high temperature heated top plate does not have a smal
21. den Gate ATR System 17 User Manual 18 Fig 13 View of Optical Components in the Golden Gate ATR System The double mirror mount 7 is fixed The input side mirror M1 ensures that the beam is correctly directed to mirror M2 In the same way the output mirror M4 needs no adjustment Where the spectrometer allows the accessory to be moved left to right move the ATR unit to find the best position where the transmission is at a maximum and firmly secure the base plate In some spectrometers it may be necessary to remove the optical unit before securing the base plate Where this is the case ensure that the baseplate does not move when removing the optical unit Using the large Allen key in screw 8 of mirror M3 very gently adjust the rotational movement of the mirror to achieve maximum energy Tip 5 MKII Golden Gate Single Reflection ATR System If the energy reading on the instrument monitor goes to zero while making any of the adjustments always bring it back with the same adjustment before proceeding further Adjust mirror M3 tilt position by inserting the smaller Allen key into screw 9 and turning to maximize the energy Important Turning the Allen key too far anticlockwise will cause 10 the screw to dislodge from the back of the mirror 10 If this accidentally happens turn the Allen key a full circle in the same direction to dislodge the screw further and free it Do not remove it Ne
22. ds liquids pastes and microsamples A complete Golden Gate ATR system consists of an ATR top plate fixed to an optical beam condensing unit This is mounted into a spectrometer using a Benchmark baseplate Most of the ATR top plates have a special bridge and clamping mechanism giving excellent and reproducible contact between a solid sample and the single reflection ATR crystal The different top plates also have a choice of anvils to provide the best possible contact for different sample forms User Manual The choice of top plates available for the Golden Gate system includes Diamond crystal 45 top plate P N 10563 Germanium crystal 45 top plate P N 10566 Heated diamond crystal 45 top plate P N 10540 High Temperature Heated diamond 45 top plate P N 10640 Wire holder diamond crystal 45 top plate P N 10565 Microspecular reflectance top plate P N 10514 Reaction cell diamond crystal 45 top plate P N 10507 Low temperature diamond crystal 45 top plate P N 10590 Supercritical fluid diamond crystal 45 top plate P N 10585 The optical beam condensing unit of the Golden Gate ATR consists of a combination of mirrors and lenses designed to achieve optimal beam condensation and maximum throughput The beam condensing lenses can be made from ZnSe or KRS 5 KRS 5 gives a slightly wider range for Mid IR studies though the throughput is slightly lower than ZnSe When pressure is applied the anvil does not
23. ent with the three support pillars in a straight line to the front of the compartment The baseplate is held in position by two location pins into the front support rail of the spectrometer and by tightening of the pull down thumb nut supplied to the instruments own fixing screw that passes through the slot at the front of the baseplate Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front 52 MKII Golden Gate Single Reflection ATR System Perkin Elmer PE1600 Series Paragon Spectrum 1000 BX RX Beam direction Left to Right Remove the sliding baseplate floor from the sample compartment by pulling it firmly forward The catch mechanism at the rear will release automatically Install the accessory onto the Benchmark baseplate support bar and pillar and secure using the captive thumb screw into the tapped hole in the support bar Slide the complete accessory and Benchmark baseplate assembly into the sample compartment The catch mechanism and Velcro type strips secure the assembly in position Perkin Elmer PE Spectrum One Spectrum 100 Beam direction Left to Right Remove any 3 x 2 mount plate used in the spectrometer Slide the Benchmark baseplate into position along the side edges of the sample compartment with the three support pillars in a straight line to the front of the compartment The baseplate locates into the spectro
24. gna Protege Avatar Nexus Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Nicolet 6000 60DX 60SX 60SXB 170SX Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer 50 MKII Golden Gate Single Reflection ATR System Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Nicolet 205 Beam direction Left to Right Remove the spectrometers complete baseplate sample mount from the sample compartment by pulling it up to release it from the ball catches Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The baseplate is secured in the spectrometer by the kinematic mount employing three
25. l air gap around its edge The item is sealed around the edge and so protects from the ingress of liquid samples or volatile solvent vapours into the optical unit below 10 MKII Golden Gate Single Reflection ATR System Microspecular Reflection Top Plate 10514 This top plate can be fitted to the Golden Gate optical unit to provide a single reflection 45 specular reflectance measurement of microsamples The top plate slot aperture is 5 mm x 2 5 mm Please check on delivery that the following have been included 1 Microspecular reflection top plate Fig 6 1 Reference mirror Fig 6 Angled View of Microspecular Reflection Top Plate 10514 Reaction Cell Diamond ATR Top Plate 10507 This is a specialist top plate that incorporates a 45 diamond crystal within a reaction chamber It is capable of operating at temperatures up to 200 C and at up to 3000 psi pressure A special manual and controlling system is provided for this Golden Gate top plate option There is also an additional stirring mechanism P N 10513 in an alternative top pressure plate assembly that can be used with the reaction chamber See Fig 7 11 User Manual Golden Gate Reaction Cell Pressure Cap Stirring Mechanism 10513 Golden Gate Reaction Cell Top Plate Assembly 10507 Fig 7 Angled View of Reaction Cell Top Plate Without Stirring Mechanism 12 MKII Golden Gate Single Reflection ATR System Low Temperature Diamon
26. l can be clamped for use with all diamond ATR plates There is also a special static non flow version of this anvil which has Luer ports and PTFE plug fittings in place of the standard 1 16 stainless steel flow pipe fittings Please contact Specac for more details Fig 23 View Thru Anvil Bridge Assembly 10569 Figs 24a amp 24b This is a special anvil allowing you to see the sample compressing onto the ATR crystal The sapphire anvil face doubles as a viewing port The anvil moves up and down in the clamp bridge by rotation of the viewing lens assembly This bridge anvil combination can be used on all ATR top plates diamond and germanium The clamp bridge and torque limiter mechanism of the standard ATR top plates must be replaced by the specific bridge and view thru anvil assembly This is achieved simply by undoing the hinge screw from the bridge pivot hole and removing the standard clamp bridge assembly 30 MKII Golden Gate Single Reflection ATR System Fig 24 Side View of View Thru Anvil Bridge Assembly Important When removing the bridge mechanism and replacing with the view thru bridge it is important the stay up catch pin inside the bridge does not fall out of position If it does fall out just replace Note The View Thru Anvil Bridge Assembly must not be used with the High Temperature Heated Golden Gate TM Top Plate P N G510640 because of the sample temperatures that this accessory can generate
27. mall quantity of the sample sufficient to cover the diamond surface only a thin covering is required 3 Ifthe liquid is volatile place the volatiles cover 10503 Fig 29 over the sample to prevent evaporation 4 Record the spectrum of the sample To remove the sample wipe the diamond and tungsten carbide surface with a cloth and suitable solvent Fig 29 Volatiles Cover 10503 Corrosive Samples The diamond ATR element in the Golden Gate is high temperature bonded into tungsten carbide using a metal layer Tungsten carbide and diamond have exceptional chemical resistance properties However Specac cannot guarantee the support disk or bonding material against corrosion from all materials particularly under hostile conditions of elevated temperature 38 MKII Golden Gate Single Reflection ATR System We recommend that your sample is confined to the center of the diamond only if there is a risk of chemical attack upon contact with the other materials of construction A sample spot 2 microns deep with a diameter of 600 microns is sufficient We recommend that a pipette or similar glass capillary tube is used to apply small sample spots to the center of the diamond only The Golden Gate is capable of handling a diverse range of chemically aggressive materials However we recommend that in order to protect your accessory your sample is cleaned off soon after analysis is complete Pressure on Sample Load
28. meter by engagement of the 15pin connector at the back of the plate into the spectrometer and by guidance clips on the underside of the plate The lilac colored pivoting handle on the underside of the plate is pulled towards you when you need to remove the plate from the spectrometer Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Shimadzu 8000 8100 8200 8300 8500 Prestige 21 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Make sure that the bar on the underside of the baseplate locates in the slot in the spectrometer sample compartment floor Move the baseplate from side to side until the location pins in the spectrometer enter the holes in the bar Secure the baseplate by screwing the two cap head M5 screws through the baseplate into the spectrometer sample compartment floor Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front 53 User Manual Unicam Analytical Philips 9600 As Mattson 1000 series Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartmen
29. n the same way as powders placing the sample face down on the diamond 36 MKII Golden Gate Single Reflection ATR System Pellets Pellets are analyzed in the same way as powders except that the pellet anvil is used The pellet should be placed centrally on the diamond Ensure the conical recessed stainless steel pellet anvil 10532 20 is firmly fitted to the end of the sample screw clamp 26 by pushing the hollow end over the retaining 0 ring Notes The conical recess head ensures that the sample is retained safely under the anvil during compression Pellets of 1 5mm in diameter or less are not suitable for the recessed head These are best analyzed with careful manipulation using the flat sapphire anvil Fibers Fibers are analyzed in the same way as powders Lay the fiber centrally across the diamond crystal surface and tape down the ends out side the diamond crystal surface if necessary Note The fiber may be taped across a support frame and laid on the ATR top plate with the sample centrally across the diamond For larger wires or fibers the Wire Holder diamond ATR Top Plate 10565 can be used with an appropriate narrow or wide Grooved Anvil 10547 or 10548 37 User Manual Liquids and Pastes 1 Prepare the accessory for analysis See 9 1 to 9 2 page 33 Note There is no need to use an anvil and the bridge clamp The bridge can remain open past the stay up catch 24 See as Fig 26 2 Apply as
30. ngle Reflection ATR top plates The types and their uses are shown in the following table Anvil P N Description Sample Type Use Top Plate Use 10531 Sapphire Solids and All diamond Powders plates 10532 Pellet Polymer Beads All diamond plates 10536 Reactive sample Air Sensitive All diamond Samples plates 10547 Grooved narrow Fibers Wires Diamond wire holder 10548 Grooved wide Fibers Wires Diamond wire holder 10549 Stainless steel flat Solids and All diamond Powders plates 10567 Large stainless Solids and Germanium top steel flat Powders plate 10568 Micro reaction Liquids Supercritic All diamond flow cell al fluids plates 10569 View thru Solids Powders All top plates anvil bridge and Fibers assembly 27 User Manual Sapphire Anvil 10531 Fig 18a This anvil can be used with all diamond ATR top plates for solid or powder samples The sapphire element on the anvil face is 3 8 mm in diameter Fig 18a Pellet Anvil 10532 Fig 19 This anvil is made of stainless steel and has a concave recess designed for round samples such as polymer pellets It can be used on all diamond ATR top plates and if the sample is relatively soft with a Germanium top plate Fig 19 Grooved Anvils Narrow 10547 Wide 10548 Figs 20a amp 20b These anvils are made of stainless steel and have a groove cut through the pressing face to position fibers or thin wires in the center of 28
31. olden Gate Wire Holder 45 ATR top plate Fig 3 1 Grooved anvil narrow 10547 1 Grooved anvil wide 10548 1 Stainless steel anvil 10549 Fig 3 Angled View of Wire Holder Diamond ATR Top Plate 10565 User Manual MKII Germanium 45 ATR Top Plate 10566 Please check on delivery that the following have been included e 1 MKII Germanium 45 ATR top plate Fig 4 1 large stainless steel anvil 10567 e 1 Volatiles cover 10503 Fig 4 Angled View of Germanium ATR Top Plate 10566 Important Note For Use Of Germanium Crystal The Germanium crystal does not have the same hardness and chemical resistance as a diamond and should be treated accordingly Be careful not to put a point loading on the crystal particularly with hard or abrasive samples With samples such as rubber and soft polymers covering the crystal normal anvil pressures may be used Check on the chemical resistance before potentially damaging materials are brought into contact with the crystal Thin films on plastic substrates can be analyzed but take care if the substrate is metallic A good idea is to apply pressure gradually taking scans to see if the spectra are acceptable 8 MKII Golden Gate Single Reflection ATR System MKII Heated Diamond ATR Top Plate 10540 and 10542 Please check on delivery that the following have been included 1 MKII Heated Diamond 45 ATR Top Plate Fig 5 1 4000 Series Temperature Controller for the heate
32. rotate against the sample This ensures that heat is not generated by friction as heat could change the sample It also ensures that the sample is not displaced from the correct sampling position MKII Golden Gate Single Reflection ATR System 2 Unpacking and Checklist The configuration of Golden Gate you ordered will determine the items to check on delivery Section 3 of this manual is for the specific top plates Please check this section for your appropriate top plate All Golden Gate systems will include the following e 1 Golden Gate optical beam condensing unit with beam condensing lenses ZnSe or KRS 5 1 Benchmark baseplate for your FTIR spectrometer 1 Ball driver 3 0 mm 1 Allen key 2 0 mm 2 Purge bellows Carefully lift your top plate and optical beam condensing unit from the carry case and place onto a flat bench Install the top plate 1 by positioning it on to the optical unit 2 and clamping down by turning the two thumb screws 3 clockwise Important The top plate must be fitted the correct way round When fitted correctly the sides of the top plate will be flush with the sides of the optical transfer unit Fig 1 Front View of MKII Golden Gate ATR System 5 User Manual 3 Top Plates for the MKII Golden Gate ATR There are a variety of top plates for the MKII Golden Gate Single Reflection ATR The top plates can be ordered with a complete Golden Gate system or separately
33. rture ports of all Benchmark baseplate compatible optical units such as found on the Golden Gate ATR accessory Please ask Specac for details Fig 14 Purge Features of the MKII Golden Gate ATR System Note Fit a polarizer where required before purging the system 21 User Manual Purging the System The MKII Golden Gate ATR optical unit is fitted with purge ports 16 The protective rubber sealing covers are removed from the purge ports and purge tubing can be connected To allow the system to be purged efficiently it is necessary to fit the flexible purge bellows 17 Tip It is recommended that purge bellows are fitted during use to help stabilize the instrument background even if the accessory is not being purged Fitting the Purge Bellows P N 10707 1 With the Benchmark base plate secured and Golden Gate installed measure the approximate lengths between the spectrometer side walls and the flat end of the ATR unit Dimension X see Fig 15 2 Using a sharp razor cut lengths of the flexible purge tube which are equivalent to the measured length X plus an additional 10 mm for each Fig 15 Fitting Purge Bellows to the MKII Golden Gate ATR System 22 MKII Golden Gate Single Reflection ATR System Tip It is easier to cut the purge tube between the hard ridges 3 Unscrew the fixing thumb screw 4 and remove the Golden Gate ATR Accessory from the sample compartment
34. seplate to loosen the clamping bar underneath Install the Benchmark baseplate by locating the inverted V slot and the flat recess on either ends of the baseplate on the two sliding bars on the spectrometer floor Tighten the screw to pull the clamping bar against the two slide bars to secure the assembly Note The accessory can be finely aligned by sliding the baseplate along the slide bars before tightening the securing screw Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Bruker IFS 25 45 55 48 66 85 88 Vector22 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer from the Bruker baseplate Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The two fixing screws and dowel pins of the Benchmark plate are passed through the larger hole ends of the slots on the Bruker baseplate and the Benchmark plate is slid from right to left to centralize it on the Bruker plate 47 User Manual The two screws are then turned anti clockwise to tighten the plates together Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Bruker Tensor 25 and Quicklock 33 Beam direction Right to Left Remove any 3 x 2
35. t with the three support pillars in a straight line to the front of the compartment The Benchmark baseplate is held in the spectrometer by the instruments kinematic mounting system which incorporates three pin stud locations and a central magnetic attachment mechanism Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Unicam Analytical Philips 9800 As Nicolet 500 series etc Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Any other Spectrometers For advice concerning spectrometers not included in this manual please consult your nearest Specac representative 54 MKII Golden Gate Single Reflection ATR System Notes 55 MKII Golden Gate Single Reflection ATR System Worldwide Distribution France Eurolabo Paris Tel 01 42 08 01 28 Fax 01 42 08 13 65 email contact eurolabo fr Germany L O T
36. the front of the compartment The baseplate is held in position by two location pins into the front support rail of the spectrometer and by tightening of the pull down thumb nut supplied to the instruments own fixing screw that passes through the slot at the front of the baseplate Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Perkin Elmer PE1700 with Shuttle Beam direction Left to Right The shuttle should be removed before installing the accessory Follow instructions as for the PE1700 Perkin Elmer PE2000 Spectrum2000 GX Beam direction Left to Right Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The baseplate is held in position by two location pins into the front support rail of the spectrometer and by tightening of the pull down thumb nut supplied to the instruments own fixing screw that passes through the slot at the front of the baseplate Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Perkin Elmer PE2000 Spectrum2000 GX Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartm
37. tion 14 MKII Golden Gate Single Reflection ATR System 4 Installation The MKII Golden Gate Single Reflection ATR is supported on a Benchmark baseplate when installed into a spectrometer The baseplate has three support pillars one flat one and two at the front with location pins and a fourth front central pillar into which the fixing thumb screw 4 is tightened Note It is best to install the Benchmark baseplate in the spectrometer first before locating the Golden Gate M ATR accessory Fixing holes and studs in the baseplate will vary dependant on the make and model of your spectrometer For details on how to install your baseplate and ATR accessory in the spectrometer refer to the relevant section of the Accessory Installation Guide see section13 Fig 10 Golden Gate ATR Top Plate on Golden Gate Optical Unit 15 User Manual 5 Alignment When you have installed the MKII Golden Gate Single Reflection ATR and top plate into your spectrometer please check the alignment of the accessory The Golden Gate ATR is given a preliminary alignment in the factory On installation some transmitted energy will be recorded by the spectrometer but for best results adjusting the accessory optics will maximize the optical throughput Note The throughput varies with spectrometer design features such as F number J stop etc but should typically be 6 or more when compared with an open beam It is import
38. tion of the Benchmark Baseplate into the Spectrometer The following is a description of how to fit a Benchmark baseplate into your spectrometer system In most cases it is best to fit the Benchmark baseplate into the spectrometer sample compartment first and then fix the accessory to the installed baseplate Analect FX6200 RFX40 65 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The baseplate locates via a blade and dowel pin and is retained by tightening of the 6 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Biorad FTS7 40 60 65 100 135 155 165 175 185 Excalibur Scimitar Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the two dowel pins on the underside of the baseplate locating into the spectrometer dowel holes in the floor of the instrument Secure the baseplate by screwing the thumb screw at the back of the baseplate into the instrument floor A long flat head screwdriver may be of help Locate the accessory onto the installed baseplate and secure using the captive thumb screw Bomem M100 Series 110
39. ur Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Mattson Galaxy Series 2000 3000 4000 5000 6000 7000 Genesis Series RS Infinity Beam direction Right to Left There are two sets of pillars supplied with the baseplate for Mattson spectrometers Long pillars 1 5 for Galaxy Series and short pillars 0 5 for Genesis Series Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment and such that the dowel pins on the underside of the baseplate locate into the floor of the spectrometer Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Mattson 8000 Old 3 beam height Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment and such that the dowel pins on the underside of the baseplate locate into the floor of the spectrometer 49 User Manual Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchm
40. ut increasing the load This means that there is no need to use a torque wrench for routine sampling However a torque wrench with torx head adaptor 10504 and 10505 respectively can be supplied separately to provide loads up to 160lbs using the central torx head screw fixing 22 See Fig 27 Figure 27 Torque limiter screw showing torx screw fixing 33 User Manual Quick Lock and Release Mechanism The clamp bridge 19 has a quick lock and release mechanism 23 When pressure needs to be applied to a solid sample the bridge must be closed see Fig 25 The quick lock and release screw is pushed down and turned clockwise 90 to lock the bridge closed To release the bridge the screw is pushed down and turned anticlockwise 90 Important When closing the clamp bridge ensure that the anvil is retracted so that it will not crash down on the crystal or sample Stay up Device At the hinge point of the Golden Gate clamp there is a spring ball bearing device 24 that prevents an open bridge from accidentally falling back down to its closed position on the bridge support 25 When sampling liquids there is no need to use the bridge as the sample will be in intimate contact with the crystal This device allows the bridge to stay open for convenience when sampling liquids see Fig 26 Preparing the Accessory for Analysis For the Diamond ATR the active sampling area is about 1 0 mm diameter in the center of the diamond
41. w into the small central pillar at the front Mattson Alpha Polaris Cygnus Sirius Beam direction Left to Right There are two sets of pillars supplied with the baseplate for Mattson spectrometers Long pillars 1 5 for Galaxy Series and short pillars 0 5 for Genesis Series Use the 1 5 long pillars with these spectrometers Remove any 3 x 2 mount plate used in the spectrometer 48 MKII Golden Gate Single Reflection ATR System Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment and such that the dowel pins on the underside of the baseplate locate into the floor of the spectrometer Secure the baseplate in position using the two cap head 8 32UNC screws supplied Install the accessory onto the four Benchmark baseplate pillars and secure using the captive thumb screw into the small central pillar at the front Mattson Galaxy Series 1000 1020 As Unicam Analytical Philips 9600 Beam direction Right to Left Remove any 3 x 2 mount plate used in the spectrometer Place the Benchmark baseplate into the sample compartment with the three support pillars in a straight line to the front of the compartment The Benchmark baseplate is held in the spectrometer by the instruments kinematic mounting system which incorporates three pin stud locations and a central magnetic attachment mechanism Install the accessory onto the fo
42. xt push the spring mounted mirror 10 away from the black anodized mirror mount and turn the Allen key clockwise until the screw 9 is re set against the rear of the spring The lens focus is adjusted by slightly loosening the locking screw 11 in lens L2 A spring washer ensures there is some friction to hold the lens barrel Hold on to the lens by the tiller bar 12 whilst loosening the locking screw 11 to prevent the lens barrel 13 from sliding down the outer casing 14 Wriggle the tiller bar 12 gently to move the lens barrel assembly up or down to maximize the energy Tighten the locking screw 11 to secure the lens in the optimum position Maximize the energy by adjusting the rotation and tilt movement of mirror M2 in the same way as M3 steps 4 and 5 Complete the alignment procedure by adjusting the lens L1 in the same way as L2 steps 6 and 7 Repeat the rotation tilt and focus adjustments as in steps 4 to 9 until maximum energy throughput is achieved and then replace the front cover plate 6 19 User Manual Corrosive Samples The diamond ATR element in the Golden Gate is high temperature bonded into tungsten carbide using a metal layer Tungsten carbide and diamond have exceptional chemical resistance properties However Specac cannot guarantee the support disk or bonding material against corrosion from all materials particularly under hostile conditions of elevated temperature We recommend
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