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Page 12

AR-G2/AR 2000ex/AR 1500ex Getting Started Guide

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Содержание AR-G2

Страница 1: ...Revision R Issued January 2011 Getting Started Guide AR G2 AR 2000ex AR 1500ex Rheometers...

Страница 2: ...ering subject matter in this document Except as expressly provided in written license agreement from TA Instruments the furnishing of this document does not give you any license to these patents trade...

Страница 3: ...ments Manual Supplement Please click the TA Manual Supplement link to access the following important information supplemental to this Getting Started Guide TA Instruments Trademarks TA Instruments Pat...

Страница 4: ...ticular requirements for laboratory equipment for the heating of materials For European Economic Area In accordance with Council Directive 2006 95 EC of 12 December 2006 on the harmonization of the la...

Страница 5: ...enerators For the European Economic Area In accordance with Council Directive 2004 108 EC of 15 December 2004 on the approximation of the laws of the Member States relating to electromagnetic compatib...

Страница 6: ...Please heed the warning labels and take the necessary precautions when dealing with these areas This Getting Started Guide contains cautions and warnings that must be followed for your own safety Sym...

Страница 7: ...with standard laboratory solvents The only exception is the cladding for the thermocouples which should not be immersed in a solvent for long periods Use a small amount of solvent on a soft cloth and...

Страница 8: ...ntained in the rheometer Mainte nance and repair must be performed by TA Instruments or other qualified ser vice personnel only WARNING This instrument must be connected to an earthed grounded power s...

Страница 9: ...vice personnel only Potential Asphyxiant WARNING Liquid nitrogen can cause rapid suffocation without warning Store and use in an area with adequate ventilation Do not vent liquid nitrogen in confined...

Страница 10: ...porated analyze the remaining liquid before using it for any purpose where high oxygen con tent could be dangerous The oven inner doors have a trough around the bottom of the element assembly for coll...

Страница 11: ...ment should be disconnected from the mains before removal of the cover WARNING The cover should only be removed by authorized personnel Once the cover has been removed live parts are accessible Both l...

Страница 12: ...Page 12 AR G2 AR 2000ex AR 1500ex Getting Started Guide This page is intentionally blank...

Страница 13: ...History of Rheology and the Development of CMT Rheometers 17 The AR G2 AR 2000ex and AR 1500ex 21 Description 21 Key Rheometer Components 22 Casting 22 Ball Slide 22 Magnetically Levitated Bearing AR...

Страница 14: ...m 45 Connecting the Rheometer to the Electronics Control Box 45 Connecting the Computer to the Electronics Control Box Using Ethernet Communications 45 Connecting Air and Water to the Rheometer 46 Lev...

Страница 15: ...AR G2 AR 2000ex AR 1500ex Getting Started Guide Page 15 Temp sys element fault 53 Temp system environment 53 Temp system sensor fault 53 Other Messages 53 Index 55...

Страница 16: ...Page 16 AR G2 AR 2000ex AR 1500ex Getting Started Guide This page is intentionally blank...

Страница 17: ...adhesives and many foodstuffs It seems that Newton conducted no experimental work on the viscosity of liquids and it was not until the middle of the nineteenth century that work in that area was led...

Страница 18: ...end As such it differed in two very significant ways from the Couette viscometers firstly in that it was what later became called a controlled rate rheometer and secondly in that the actuator and dete...

Страница 19: ...AR G2 AR 2000ex AR 1500ex Getting Started Guide Page 19 Figure 1 Jack Deer s Air Turbine Rheometer left Deer Rheometer right Figure 2 CSR...

Страница 20: ...d air bearings but the limits of that technology appear to have been reached and for the AR G2 launched in 2005 a magnetically levitated bearing was used This and other developments by TA Instruments...

Страница 21: ...2000ex and AR 1500ex are similar Description The body of the rheometer is a rigid single piece metal casting comprising a base and column The instrument head is attached to a ball slide which is mount...

Страница 22: ...single piece aluminium casting consisting of a base and column The cast ing is an important component of the rheometer as it needs to be rigid to axial and torsional stresses robust and capable of bei...

Страница 23: ...field generated by each actuator is controlled through the cur rent supplied to its coils The stronger the field the greater the attraction between the actuator and the thrust disc The axial position...

Страница 24: ...s of the air bearing is also reduced Thus a compromise in the design of an air bearing is needed for optimal performance The air bearing uses a mixture of proven bearing techniques with novel material...

Страница 25: ...oprocessor control of the motor these small variations can be mapped automatically and the results stored Unless changes to the bearing characteristics occur the variations are stable over time The mi...

Страница 26: ...me in any rheometer design the temperature of the drag cup is measured ensuring the most accurate possible torque output The low friction and inertia of the motor together with sophisticated modern el...

Страница 27: ...of a cone or paral lel plate geometry For this to happen the structure responsible for the elasticity must not be completely disrupted by steady shear For this reason colloids suspensions etc although...

Страница 28: ...release button Smart Swap indicator light green Smart Swap The AR rheometers feature Smart Swap technology that automatically senses the temperature control system present and configures the rheometer...

Страница 29: ...y with rapid heating and cooling The plate consists of a copper disc with hard chrome plating on the upper surface A Pt100 temperature probe is embedded in the disc in thermal contact with it and clos...

Страница 30: ...spersions or any liquids that are pour able into a cup Examples of materials suitable for Concentric Cylinders include low concentration polymer solutions solvents oils drilling mud paint varnish inkj...

Страница 31: ...r Heated Plate UHP is compatible with all Peltier Plate models and provides upper plate temperature control The UHP features 8 25 and 40 mm diameter cones and plates and a maximum temperature of 150 C...

Страница 32: ...70 C Standard features include 25 mm diameter parallel plate geometry environ mental cover and heated purge gas An optional clear cover is available for sample viewing and for use with the Camera Vie...

Страница 33: ...as studying the materials that volatilize under atmospheric pressure This option is available for the AR G2 and AR 2000ex rheometers Refer to the Pressure Cell Getting Started Guide for additional in...

Страница 34: ...s an innovative impeller design for mixing reduction of water loss and control of sedimentation during testing The actual sample temperature is measured and controlled in a temperature chamber with he...

Страница 35: ...vides fast response and temperature stability over a continuous 760 C range as highlighted in the figure below with temperature steps of 20 C The ETC is a very popular option for polymer applications...

Страница 36: ...e the meniscus effect the cup and lid are constructed from poly tetrafluo roethene PTFE and the geometry from stainless steel It is important that the cup and disc are aligned concentrically and the b...

Страница 37: ...ty and the trough positioned on the Peltier Plate accurately leveled A non return check valve is fitted to the trough below the level of the interface Together with the supplied tubing and syringe thi...

Страница 38: ...n these materials are exposed to UV radiation a fast cross linking reaction occurs typically within less than a second to a few min utes Two SmartSwap accessories for rheological characterization of t...

Страница 39: ...orporates TA Instru ments Smart Swap technology bringing a new level of speed and simplicity for making simultaneous rheology and SALS measurements The system can be installed aligned and ready for me...

Страница 40: ...s Double gap concentric cylinders Solid sample rectangular SER Universal Testing Platform Smart Swap Geometries The AR G2 Smart Swap geometries have a larger diameter than those used on the AR2000ex a...

Страница 41: ...14 75 in 37 5 cm 17 75 in 45 cm 38 1 lbs 17 3 kg Module Instrument Base Width Height Depth Weight 11 75 in 30 cm 26 5 in 67 cm 12 5 in 32 cm 63 8 lbs 29 kg Minimum torque oscillation CR Minimum torqu...

Страница 42: ...torque steady CR Minimum torque steady CS Maximum torque Torque resolution Motor inertia Angular velocity range CS Angular velocity range CR Frequency range Displacement resolution Step change in velo...

Страница 43: ...be ready for you to use However should you need to install or relocate the instrument this chapter provides the necessary instructions Removing the Packaging and Preparing for Installation If needed...

Страница 44: ...er and its keyboard On A stable vibration free work surface Near A power outlet Mains supply voltage fluctuations not to exceed 10 of the nominal voltage instal lation category II Your computer for di...

Страница 45: ...port on the back of the rheometer and the other end in the Power port on the back of the control box 2 Push the D type cable into the Signal port on the back of the rheometer and connect the other en...

Страница 46: ...information on the location of the relevant connections in the instructions below 1 For Peltier based temperature control options connect a supply of cooling water to the flow and return connections a...

Страница 47: ...example Peltier Plate If the instrument is not level screw the adjustable feet located at each corner of the instrument either in or out as necessary Check the spirit level after each adjustment Once...

Страница 48: ...g clamp by turning the draw rod counterclockwise anti clockwise 2 Push the geometry up the spindle and hold it while locating the draw rod in the screw thread of the geometry 3 Screw the draw rod upwa...

Страница 49: ...will be disturbed while the air is off In the case of the EHP UHP and ETC doors closed simply removing the draw rod should be sufficient to protect the bearing unless the instrument is going to be mo...

Страница 50: ...om the rheometer before attempting to move it Details on how to do this can be found in TRIOS Online Help When moving the rheometer the bearing clamp should always be in place ensuring that the bearin...

Страница 51: ...to the draw rod Hold it in place while turning the knob at the top in a clockwise direction Figure 22 Performing step 2 CAUTION Always hold the clamp and turn the knob never the other way round 3 Trea...

Страница 52: ...zing Electronics Power board Instrument Bearing overspeed Shown when the rheometer bearing rotation exceeds the specified maximum speed Bearing pressure too low This is displayed if the air supply has...

Страница 53: ...isplayed when the Stop button was pressed while the Rheology Advantage software had the keypad locked This usually indicates that a test run was in progress and the operator aborted it using the rheom...

Страница 54: ...Page 54 AR G2 AR 2000ex AR 1500ex Getting Started Guide This page is intentionally blank...

Страница 55: ...gap set facility 28 B ball slide 22 C cautions 4 D draw rod 50 inserting 50 E electrical safety 9 Electrically Heated Plate description 32 electromagnetic compatibility standards 4 error codes 52 ETC...

Страница 56: ...nsducer 27 optical encoder 26 preparation for installation 43 unpacking 43 instrument symbols 6 Interfacial Accessory bicone 36 L LCD display messages 52 license agreement 3 location 44 location of in...

Страница 57: ...nics control box 45 installation requirements 44 location requirements 44 preparing for installation 43 removing packaging 43 rheometer See also instrument 22 rotational mapping 25 S safety 6 chemical...

Страница 58: ...Page 58 AR G2 AR 2000ex AR 1500ex Getting Started Guide V VTI SA technical specifications 41 W Warnings 7 warnings 4 water connecting to rheometer 46 work surface 44...

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