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The Quest Single Reflection ATR Accessory User Manual 2I-10800-10...
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List of Safety Symbols Safety Symbol Meaning Caution! indicates Important information which needs to be followed for the safe operation of this accessory. Caution! – Hot Surface where used indicates the product contains heated surfaces which need to be taken into consideration while handling and operating this device Caution –...
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Quest Heated Puck User Manual 2I-10800-10...
1. Introduction Thank you for buying a Specac product. We trust it will provide you with invaluable and excellent service in use. The Quest Single Reflection ATR Accessory is designed for the quantitative and qualitative analysis of solids, powders, liquids, pastes and gum-like samples using mid-IR spectroscopy at a nominal 45°...
SEBS), anodized aluminum puck. Safety data sheets (SDS) are available in the product support section of the Specac web site where required and are provided with each crystal type. As an alternative please contact your Specac representative for further details.
3. Checklist of Contents The Quest ATR Accessory is provided in its own specific packaging. The items that require checking upon delivery depend on which Quest ATR system has been ordered. Please check for the following standard items: 1 x Quest ATR Accessory including optical unit...
4. “Bubble Numbers” Part Identification List 1) Optical unit thumb screw. (Figure 5-1). 2) Location slot of ATR puck assemblies (Figure 5-3). 3) Location pin on top surface of the optical unit (Figure 5-4). 4) Magnetic catch for ATR puck assemblies (Figure 5-4). 5) Front cover plate of optical unit (Figure 6-1).
The thumb screw (1) at the front of the Quest ATR optical unit screws into the front central pillar, while the outer studded pair locate in slots beneath the Quest unit.”...
Top and underside views of the Quest ATR Flat and Liquid puck assemblies are shown in Figure 5-2 and Figure 5-3. ATR Crystal Figure 5-2: Top view of Quest ATR Diamond Crystal puck: Standard (left) and Liquids (right) Puck Assembly Serial Number...
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Install the puck assembly onto the Quest by lining up the alignment notch (2) in the puck with the locating pin (3) on the Quest top plate (see Figure 5-3 and Figure 5-4). Three magnets (4) capture and hold the puck in place when it is correctly positioned on the Quest ATR optical unit.
6. Alignment Procedure for Quest ATR The Quest ATR Accessory has been factory aligned with your choice of puck. However, it may be necessary to maximize the optical throughput for a specific spectrometer by adjusting the mirrors in the optical unit of the Quest ATR Accessory.
Figure 6-1: Quest ATR - Front Cover Plate Removal 6.2. Synopti-Focal Mirror System The Synopti-Focal mirror arrangement is shown in figure 5-2. For a right- to-left beam direction, the beam strikes the mirrors in the following sequence from source-side (S) to detector-side (D):...
ATR Puck Figure 6-2: Cutaway front view of Quest ATR Accessory showing the Synopti- Focal arrangement of mirror components 6.3. Alignment Procedure The alignment procedure consists of adjusting mirrors M1, M3 and M6 mirrors, optimizing first rotation then tilt. Note: The mirrors M2, M4 and M5 do not require adjustment. A cover has been placed over the rotation adjustment screw for mirror M2 to prevent adjustment.
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Figure 6-3: Access to Mirrors M1, M3 and M6 - Cover Plate Removed 1. Using the 2.5 mm ball driver tool supplied, adjust the rotational alignment of the mirrors M6, M3 and M1 in that sequential order, via the grub screws, (7), (9) and (11). Carefully adjust each mirror one at a time, maximizing the energy signal as far as possible before moving onto the next mirror.
Note: The following procedure should also be used if no energy is observed at the detector on installation. 1. Ensure the fault is with your Quest unit by removing the accessory and checking for a signal to show that the spectrometer is functioning correctly (consult Spectrometer manual/dealer for more information).
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8. There should now be some energy level indication (however small), at the detector after passage of light through the Quest ATR Accessory and so the fine alignment procedure can now be followed starting with rotation of mirror M6 as described from step 1) on page 15 of this instruction manual.
7. Purging the Quest ATR Optical Unit The Quest is fitted with an optional purging port into which 1/4” tubing can be inserted. This is useful for suppressing atmospheric water vapor and/or CO with inert gas from a cylinder or from a purge gas generator.
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The purge bellows (16) are installed by a push fit to the aperture ports (13) of the Quest. If the gap/distance between the optical unit and bulkhead is small, the purge bellows can be cut to size for a better fit. It is best to cut along one of the ridged grooves.
8. Quest ATR Clamp Arm and Anvils 8.1. Clamp Arm Assembly When using the Quest ATR Accessory with a solid sample a load must usually be applied to ensure good contact between the ATR crystal and sample. To use: rotate the clamp arm assembly into the position shown in Figure 8-1, if necessary adjusting the height of the anvil (17) by adjustment of the Torque Knob (20).
8.2. Choice of Anvils There are two different anvils (17) that can be used with the Quest ATR Accessory as follows: • The flat anvil (Figure 8-2, left) has a self-levelling surface head and should be used for most solid and powder samples.
9. Sampling Using the Quest ATR Accessory Once the Quest has been set up as described in previous sections, you may now begin recording spectra. 9.1. Background Acquisition Ensure that the ATR crystal is clean and then record a background spectrum of your accessory (refer to your spectrometer manual for more information).
ZnSe crystal material. Stronger acids and bases will damage ZnSe irreparably. For liquid sample types Specac offer several different options for containment.. Viscous samples and samples with high surface tension can be used on the Standard puck. The Liquids puck has a well around...
In common and general usage, it will only be necessary to wipe and clean away at the top surface of any Quest ATR puck between samples. Avoid getting any solvent or cleaning solution materials on the underside of the puck.
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method of cleaning may be carried out for the diamond material than could be achieved with the ZnSe or Ge puck options. More aggressive solvents and abrasive cleaners could be considered for use to remove the sample, if necessary. Warning: Aggressive cleaning procedures suitable for diamond will very likely cause irreparable damage to ZnSe or Ge materials.
10. Quest Sampling Accessories 10.1. The Volatiles Cover Included with the Quest ATR Accessory is a volatiles cover (21), compatible with the Standard and Liquid Pucks. A larger volatiles cover is supplied with the heated puck. This can be used for sampling and containing liquid samples, particularly when they are volatile.
10.2. Luer Lock Liquids Anvil A Luer Lock Liquids Anvil (22) is also available for longer duration experiments with liquids. Figure 10-3 shows top (left) and underside (right) views of the Luer Lock Liquids Anvil (22). Figure 10-3: Luer Lock Liquids Anvil The anvil (22) is placed centrally over the ATR crystal and then clamped into position using the Flat Anvil (17) (see page 20).
Quest ATR Heated Diamond Extended Range Accessory GS10895 Quest ATR Heated ZnSe Accessory Optical unit with clamp arm assembly and Benchmark™ baseplate GS10805 Quest ATR (Requires a Puck Assembly for use) Puck Assemblies ATR Crystal Pucks Puck Type Standard Liquid...
12. Quest ATR Technical Specifications ZnSe Diamond ATR Crystal 3.4 mm dia. 3.4 mm dia. 1.8 mm dia. 3.4 mm dia Active Area Angle of ° Incidence 7800 - 400 8000 – 33 Accessory 7800 - 500 5500 - 500...
13. Quest ATR Serial Numbers Your Quest ATR Accessory will be provided with a unique serial number which can be found on the exterior of the packaging box and also on the rear of your Quest accessory. Puck assemblies have their own unique serial number which can be found on the underside of the puck.
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Brilliant Spectroscopy™ www.specac.com SPECAC INC. SPECAC LTD. 414 Commerce Drive Science and Innovation Centre, Suite 175, Halo Business Park, Fort Washington, Cray Avenue, PA 19034, USA Orpington, Tel: 215 793 4044 Kent BR5 3FQ Fax: 215 793 4011 Tel:+44 (0) 1689 87313...
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