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AR 2000 Operator's Manual

142

running experiments in external pressurization mode 104
running experiments in self-pressurization mode 102
safety relief port 89
safety specifications 86
specifications 86
three-way valve 101purge gas
connecting to rheometer

45

R

relative humidity

36

rheology

definition

22

rheometers

brief history

21

Rotational Mapping

26, 26 to 27

Rotor

55

S

safety

chemical

19

electrical

17

EMC Conformity

15

warnings

11

sample

loading

65

sample cover

83

samples

preventing evaporation

62

shear rate

59

shear stress

59

shut down

53

Sir Isaac Newton

21

Smart Swap™

28

using

39

Pressure Cell (con'td)

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Summary of Contents for AR 2000

Page 1: ...AR 2000 Operator s Manual 1 AR 2000 Rheometer Rheometrics Series Operator s Manual PN 500106 002 Rev L Issued January 2007...

Page 2: ...trademarks copyrights or other intellectual property covering subject matter in this document Except as expressly provided in written license agreement from TA Instrument the furnishing of this docum...

Page 3: ...anual Supplement Please click on the links below to access important information supplemental to this Getting Started Guide TA Instruments Trademarks TA Instruments Patents Other Trademarks TA Instrum...

Page 4: ...s ret et EMC Conformit 16 Sp cifications 16 S ret 16 EMC 16 Lifting and Carrying Instructions 17 Electrical Safety 17 Liquid Nitrogen Safety 18 Handling Liquid Nitrogen 19 If a Person is Burned by Li...

Page 5: ...d Preparing for Installation 35 Installation Requirements 36 Connecting the System Together 37 Connecting the Rheometer to the Electronics Control Box 37 Connecting the Computerto the Electronics Cont...

Page 6: ...ry 60 Cone and Plate Parallel 60 Plate Systems 60 Angles 60 Diameters 60 Material 61 Preventing Solvent Evaporation 62 Preventing Slippage at Sample Geometry Interface 62 Removing the Air Bearing Clam...

Page 7: ...embly 89 Magnet Assembly 90 Pressure Manifold 91 Requirements for External Pressure Source 92 Installing and Using the Pressure Cell 93 Step 1 Install High Pressure Piping Manifold 94 Step 2 Install a...

Page 8: ...acial Shear Stress and Shear Rate Calculation 119 Part Numbers 119 References 119 Chapter 10 Do s and Don ts 121 Overview 121 DO 121 DON T 122 Appendix A Useful Information 123 Moments of Inertia 123...

Page 9: ...ment fault 130 Temp system environment 130 Temp system sensor fault 131 Other Messages 131 Appendix E TA Instruments ETC Kits 133 ETC Torsion Rectangular Kit 543307 901 133 ETC Parallel Plate Kit 5433...

Page 10: ...nce to you as you read through the instructions A NOTE highlights important information about equipment or procedures A CAUTION emphasizes a procedure that may damage equipment or cause loss of data i...

Page 11: ...uld lead to liberation of hazardous gasses WARNING It is recommended that this instrument be serviced by trained and skilled TA Instruments personnel at least once a year WARNING There may be a danger...

Page 12: ...t warning Store and use in an area with adequate ventilation Do not vent liquid nitrogen in confined spaces Do not enter confined spaces where nitrogen gas may be present unless the area is well venti...

Page 13: ...r ETC mont sur l AR2000 sont con us pour r sister toute attaque chimique Ils peuvent donc tre tous nettoy s l aide de solvants quelconques l exception du rev tement des thermocouples qui ne doivent pa...

Page 14: ...service qualifi Cet appareil doit tre connect la terre Toute rallonge utilis e avec cet appareil doit comporter une masse de securit Utiliser l azote liquide avec pr cautions car une utilisation inad...

Page 15: ...1 1995 EN 61010 1 Amendment 2 1995 EN 6101 2 010 1994 Particularrequirementsforlaboratoryequipmentfortheheatingofmaterials EN 61010 2 010 Amendment 1 1996 UL3101 1 First Edition 1993 IEC 1010 2 010 19...

Page 16: ...2 1995 EN6101 2 010 1994 Conditions particuli res pour le mat riel de laboratoire destine au chauffage des mat riaux EN61010 2 010 Amendment 1 1996 UL3101 1 First Edition 1993 IEC 1010 2 010 1992 CAN...

Page 17: ...ou lift to avoid possible strain on your back You should always use two people to lift the instrument Treat the AR 2000 with the same degree of care you would take with any scientific laboratory instr...

Page 18: ...t utiliser dans une zone dot e d une ventilation ad quate Ne pas ventiler d azote liquide dans des espaces confin s Ne pas p n trer dans des espaces confin s o le gaz d azote peut tre pr sent moins de...

Page 19: ...Ensurethatclosedcontainershaveventstorelievepressure 3 The purity of liquid nitrogen decreases as the nitrogen evaporates If much of the liquid in a container has evaporated analyze the remaining liqu...

Page 20: ...glage le remplacement des pi ces l entretien et la r paration devraient tre effectu s exclusivement par le personnel qualifi de TA Instruments Avant l ouverture du ch ssis d brancher l instrument WAR...

Page 21: ...first rotational viscometer c 1890 viscosity was measured using stress driven gravity flow Many of today s techniques still use this principle such as flow cups U tubes capillaries etc The development...

Page 22: ...as well as measuring the shear stress shear rate relationships at higher stresses In the controlled stress technique the stress can be applied and released at will and the actual behavior of the samp...

Page 23: ...parent disc attached to the drive shaft On the edge of this disc are extremely fine accu rate photographically etched radial lines Therefore this is a diffraction grating There is also a stationary se...

Page 24: ...AR 2000 Operator s Manual 24...

Page 25: ...ntamination and misuse The amount of air consumed is related to the pressurized bearing clearance To minimize air con sumption a small clearance 10 m is needed However as air has a finite viscosity 0...

Page 26: ...ave small variations in behavior around one revolution of the shaft By combining the absolute angular position data from the optical encoder with microprocessor control of the motor these small variat...

Page 27: ...ns set in the Rheology Advantage software There are four closure options available with the AR 2000 Rheometer Standard Linear Exponential and Normal Force The options available are described in detail...

Page 28: ...ntaining a few liters of water plus a small pump that can provide sufficient flow rate through the Peltier heat exchanger jacket built into the plate The reservoir fluid will become warm with the prol...

Page 29: ...glement Normal force measurements are made with cone and plate or parallel plate geometries therefore it is important to use a method to detect the force that does not allow significant changes in the...

Page 30: ...AR 2000 Operator s Manual 30...

Page 31: ...0RheometerDimensions Accessory Electronics Base Width 7 25 in 18 5 cm Height 14 75 in 37 5 cm Depth 17 75 in 45cm Weight 38 1 lbs 17 3kg Module Instrument Base Width 11 75 in 30cm Height 26 5 in 67cm...

Page 32: ...C 20 C to 200 C water at 60 C 10 C to 200 C water at 40 C 0 C to 200 C water at 1 C 30 C to 180 C fluid at 20 C 40 C to 160 C Typical Ramp Rate 30 C min 1 Ramp Rate 20 to 100 C 50 C min 1 100 to 150...

Page 33: ...fluid at 20 C 40 C to 100 C Ramp Rate Cooling 15 C min maximum Heating 13 C min maximum Pt100InternalResolution 0 01 C Table4 6 Optional Accessory Specifications for Upper Heated Plate Temperature ra...

Page 34: ...AR 2000 Operator s Manual 34...

Page 35: ...hetemperaturecontrolmodulefromtherheometerbeforeattemptingtomoveit Detailson how to do this can be found later in this section SmartSwap Whenmovingtherheometer theair bearingclamp should always be in...

Page 36: ...inal voltage installation category2 Yourcomputer Sources of compressed lab air and purge gas supply for use during cooling and sub ambient experiments A compressed air supply that is capable of supply...

Page 37: ...he back of the rheom eter and connect the other end to the Signal port on the back of the controlbox CableC Connecting the Computer to the Electronics Control Box The electronics control box and compu...

Page 38: ...4 on the previous page for information on the location of the relevant connections in the instructionsbelow 1 Connect a supply of cooling water the flow and return connections at the rear of the rheo...

Page 39: ...he Release button on the control panel as seen in Figure 5 4 A continuous green light indicates that the attachment can be fitted NOTE The release state will only stay active for 10 seconds Led v roui...

Page 40: ...button again A continuous green light indicates that you can remove the attachment 3 Removetheattachmentfromtherheometer See Figure5 8 NOTE The release state will stay active for 10 seconds and then r...

Page 41: ...ous green light indicates that the attachment can be fitted NOTE The release state will only stay active for 10 seconds Led v rouillageresteraactifpendant10 secondes 3 Fit the cylinder attachment ensu...

Page 42: ...u can now set up themeasuringgeometryintherheometersoftwareand set the gap explained in the online help Changing the Cup If you need to change the size of the cup you are using follow these steps 1 Un...

Page 43: ...washers and are located in place but make sure that they are almost totally unscrewed two turns in 5 Open the ETC oven see Figure 5 15 and then use the handles on the oven doors to lift it onto the tw...

Page 44: ...tly See Figure 5 18 below 13 Connect the cable fromthelowerattach menttotherheometeras seen in Figure 5 19 14 Close the oven and ensure that no part of the doors touch any part of thelowerfixture Adju...

Page 45: ...n Figure 5 22 Otherwise connect as shown in Figure 5 21 below CAUTION The reducing valve is factory set to 10 liters per minute and should not be adjusted La valve r ductrice est r gl e 10 litres par...

Page 46: ...nufacturer 3 Connect the flexible hose from the outlet of the cryogenic cooling system to the Liquid in connection on the flow meter assembly as shown in Figure 5 23 Connect the purge gas from the flo...

Page 47: ...ant to use the correct sample volume The Rheology Advantage software calculates the exact volume required based upon the gap size and geometry diameter If you know the density of the sample you can we...

Page 48: ...e will bake and then crumble apart You can also remove the plates and soak them in an appropriate solvent or replace them with a fresh pair It is good practice to always unscrew the draw rod before ra...

Page 49: ...ge Help system Controlling Cooling When you set the control valve on the liquid nitrogen unit you must compromise between the rate of cooling which is improved by having a large flow rate and the fine...

Page 50: ...ational hints and maintenance information Ensure that the gap is correctly set When installing parallel plate geometries carefully ensure that the thread is engaged squarely to avoid the possibility o...

Page 51: ...n Attachmentholderisunlocked Head up Moves the rheometer head up while pressed Head down Moves the rheometer head down while pressed STOP Aborts the current activity on the rheometer such as gap zeroi...

Page 52: ...position Checking Your System After installation has been completed start the instrument to check to make sure everything is working and that all parts of the system are communicating with each other...

Page 53: ...g 4 Carry out a 4 minute flow test continuous ramp controlled stress range 0 to 88 0 Pa at 20 C 5 Determine the Newtonian viscosity If this value is more than 4 different from the certified value repe...

Page 54: ...filter regulator assembly is shown schematically in Figure 5 27 Figure5 27 The Filter Regulator Assembly If you use the filter regulator you will need to check routinely i e at least monthly for any s...

Page 55: ...contact with the sample or material A measuring system consists of two parts One is the fixed member or Stator for example the Peltier plate The second part the geometry is attached to the driving mo...

Page 56: ...m is shown below in Figure 6 1 It is important to know how to calculate the stress and shear rate factors for each geometry before deciding on the geometry dimensions Figure6 1 The Cone and Plate Shea...

Page 57: ...minating the problems due to particles size A good rule of thumb for particulate materials is to set a gap size set at least 10 times greater than the largest particle size For example if the maxi mum...

Page 58: ...setting up and using the concentriccylindersystems There are several different types including Recessed end Conical end DIN Vane Doubleconcentric See the following figures for examples of concentricc...

Page 59: ...d by the software in all subsequent calculations However there may be occasions when you will need to enter these factors manually If you do follow the sequencegivenbelow 1 Multiply the angular veloci...

Page 60: ...can accommodate large particles Generally the cone and plate or parallel plate systems can be used for almost any sample They are easy to set up and use making one of these systems the best choice for...

Page 61: ...n given above on the choice of angle or gap and diameter Material Stainless steel is relatively heavy has a low coefficient of thermal expansion is compatible with most samples and is very robust Alum...

Page 62: ...vent trap cover and geometry is shown in Figure 6 7 below When using solvent trap systems it is generally advisable to run the inertia correction wizard with solvent in the trap but no sample loaded P...

Page 63: ...b never the other way round Toujours tenir la g om trie et tourner la molette jamais le contraire Next slide the bearing lock away and ensure that the bearingisfreetorotate The clamp is replaced in ex...

Page 64: ...s described for the air bearing clamp 1 Switch on the air and remove the air bearing clamp by turning the draw rod counterclockwise anticlockwise 2 Push the geometry up the drive shaft and hold it whi...

Page 65: ...ipettes If the gap is not filled correctly there are certain types of errors that can occur The magnitude of the errors will be entirely sample dependent but generally over filling is less of a proble...

Page 66: ...AR 2000 Operator s Manual 66...

Page 67: ...thetwocomponents seeFigure7 1 Heating of the Upper Heated Plate is throughtheelectricalelements Cooling is provided by vortex air water or other fluid carried in the coolant channel Control of the wat...

Page 68: ...Note that the power cable should project to the right of the instrument when viewed from the front with the ports for the coolant and inert gas to the left see Figure 7 2 Figure7 2 The Upper Heated P...

Page 69: ...emovetheadaptor from the Smart Swap socket using the Release button on the instrument controlpanel RemovethePeltierconnec tor from the adaptor and plug the connec tor directly into the Smart Swap sock...

Page 70: ...6 below 3 Remove the metal push fit connector from the inlet port on the UHP and fit the Swagelok adapter supplied in the kit See Figure 7 7 to the right Note that once this has been fitted it cannot...

Page 71: ...ooler 8 Connect the opposite end of the white 6 mm O D tubing used in step 7 to a source of dry compressed air 80 to 100 psi 30 C dew point or better An 8 mm Y piece and 8 mm to 6 mm reducer are suppl...

Page 72: ...hat sufficient pressure is available to ensure adequate flow through both for example from an FP50 MS fluid circulator available from Julabo GmbH www julabo com mains water supply is also normally sui...

Page 73: ...the GAS IN port on the CCU using the 8 mm outer diameter tubing white If it is necessary to split the air line to provide a source for both the instrument air bearing and the CCU this should be done...

Page 74: ...is available for use with these fluids WARNING Flammable fluids such as ethanol or mineral oils should NOT be used with the Upper Heated Plate Circulating fluids should NOT be used outside the ranges...

Page 75: ...one fluids are used as coolants the air purge on the Upper Heated Plate is not required 3 Connect the EVENT socket on the valve bracket to the EVENT B socket on the rear of the AR 2000 rheometer using...

Page 76: ...ter geometry which can attached to the holder by hand 3 When the geometry is in place carefully insert and posi tion the holder within the Upper Heated Plate and connect to the instrument shaft by rot...

Page 77: ...n the table below Table7 3 Feed Temperature FlowRate Range Mains Tap Water 15 C 0 75 Liter min 1 5 C Fluid Circulator 5 C 0 25 Liter min 1 15 C Vortex Air Cooler 15 C 100 C Thermal mass The energy req...

Page 78: ...e temperature gradient between the Peltier plate and the upper geometry The gradient is reduced to within preset tolerances by adjust ing the temperature of the Upper Heated Plate while the temperatur...

Page 79: ...nt is compared with the set temperature If the difference is not more than the gradient zero tolerance the set temperature is accepted as the tempera ture value If the difference is greater than the g...

Page 80: ...e read by the Upper Heated Plate heat spreaderprobe plotted againstsettemperature The Gradient calibration span is the slope of the best fit straight line through the data and the Gradient calibration...

Page 81: ...onnected and switched on To attach the clamp 1 Removethegeometryholderfromtheinstrument shaft andremovethegeometryfromtheholder see Figure7 23 2 Replacethegeometryholder 3 Push the clamp up onto the d...

Page 82: ...tion to the Upper Heated Plate A gas flow meter not supplied should be used to set the gas flow rate 1 Connect the gas supply to the inlet port on the gas flow meter 2 Connect the outlet port on the f...

Page 83: ...loading and trimming the cover is held in this position by a bayonet fitting that attaches over the coolant connectors The cover should be used in the down position during the experimental run Figure7...

Page 84: ...AR 2000 Operator s Manual 84...

Page 85: ...e surface temperature of the pressure cell and its fittings The Pressure Cell is used with the standard concentric cylinder Peltier controlled heating jacket A copper sheath is fitted to the cell to e...

Page 86: ...isk 172 bar 2500 psi Hydraulically tested to 414 bar 6000 psi Operational Limits CAUTION To prevent sample entering the upper part of the cell and contaminating the bearings the cell should not be use...

Page 87: ...redPressureCell installed on an AR Rheometer The following section will discuss these four components individually The Pressure Cell is shown assembled on the AR rheom eter with the instrument head in...

Page 88: ...sure manifold is supplied that attaches to the inlet port using a compression connector A pressure snubber is fitted between the port and the high pressure line to slow the pressure build and prevent...

Page 89: ...he Rupture Disk such that it is pointedtorear oftheAR G2 andawayfrom theoperator Thiswill preventsamplematerial from being ejected toward the operator in the event of an over pressure situation Rotor...

Page 90: ...ding for the outer surface of the spindle collar See the figure below Like the rotor assembly the magnet assembly contains a 4 pole magnet When the spindle and magnet assembly are rotated the attracti...

Page 91: ...pres sure cell should not be oper atedwithoutthemanifoldin place The pressure mani fold shown in Figure 8 8 to the right includes the fol lowing Mounting plate and Sorbothane block The Sorbathane bloc...

Page 92: ...ing the source from the manifold and of relieving the pressure in the line from the source to the manifold should be provided Figure 8 9 below shows a typical set up for external pressurization WARNIN...

Page 93: ...tubing during the manufacturing process Subsequent disassembly and remake of any fitting should be done by first putting a reference mark on the nut and the body of the fitting before loosening the f...

Page 94: ...left lower corner when facing rear of the AR rheometer as shown in Figure 8 11 Attach the mounting plate and Sorbothane block to the two M5 using the cap head screws provided as shown in Figure 8 12...

Page 95: ...Figure 8 13 to the right 4 Connect angled high pressure pipe to the cell inlet port ensuring that the straight part of the pipe is vertical as shown in Figure 8 13 Tighten the compression connector a...

Page 96: ...draw rod and begin lowering the rheometer head as shown in Figure 8 16 11 At a gap of about 20 mm between the shoulder on the rotor assembly and the underside of the upper magnet assembly the magnets...

Page 97: ...ntage software 3 ConducttheBearingFrictionCalibration ThebearingfrictionroutineusedwhenthePressureCellisselected as the geometry is slightly different from the standard routine The calibration should...

Page 98: ...ing the small magnet in place gently remove the rotor from the cup 4 Load the sample into the cup For very viscous samples you may find it easiest to weigh the sample in the cup if the sample density...

Page 99: ...y will engage with those in the rotor assembly as shown in Figure 8 19 A small noise will be heard when this happens and a change of a few Newtons will be seen in the normal force reading Immediately...

Page 100: ...her compression fittings as directed in the NOTE on page 93 4 Finally fullytightentheangledpipetothemanifold as directed in the NOTE on page 93 CAUTION To avoid putting excessive force on the pressure...

Page 101: ...e and temperature As a guide the vapor pressure of water at 150 C is about 4 76 bar 69 psi When the cell has been assembled correctly as directed in this chapter it can be pressurized The manifold con...

Page 102: ...described earlier in this chapter These are used to slow the buildand relief of pressure in or from the cell The snubbers may become clogged with sample preventing the cell pressure from being proper...

Page 103: ...Disconnect the pressure cell from the manifold at the designated disconnection point at bottom of the angled pipe Raise the head and decouple the magnet assembly and the rotor and remove the Peltier...

Page 104: ...e the cell by slowly opening the three way valve on the manifold to the pressure build position arrow pointing vertically downwards Check the pressure cell to make sure there are no leaks If it is fre...

Page 105: ...pressure in the cell This should only be done if the 3 way valve on the manifold cannot be used if for example the snubbers have become blocked The cell should also be at room temperature before using...

Page 106: ...flowed into the sapphire bearings and magnet of the rotor assembly the rotor may become sticky not rotate freely In this case the rotor assembly must be dismantled and cleaned as follows 1 Hold the ro...

Page 107: ...to the right for reference if needed 5 Before disassembling the remaining parts note the scribelineson themagnetandbobcollar Thiswillallow you to realign the magnet properly after cleaning See the fi...

Page 108: ...ust the setscrews to 8 5 lbf in or 96 N m 14 Turn the rotary cap upside down and rest it on a flat surface table or lab bench 15 Taking the parts already loosely assembled insert the shaft into the ro...

Page 109: ...otary cap 19 Turn the entire assembly right side up and place it back into the pressure cell cup 20 Insert the wrench also called a Tommy bar provided into one of the six holes in the rotor assembly c...

Page 110: ...p into the Pressure Cell Cup 403001 901 Pressure Cell Assembly 403008 901 Upper Pressure Cell Assembly with bob and magnet 403029 901 Manifold Assembly 403032 901 Alignment Magnet used to hold the Rot...

Page 111: ...accessory consists of a circular cup with removable lid and a thin biconical disc geometry Figure 1 For chemical inertness and to reduce the meniscus effect the cup and lid are constructed from poly...

Page 112: ...mm 1 57 in Volume 226 mL approx Material PTFE Geometry Disc radius 34 mm 1 43 in Bicone angle 10 Inertia 20 3 mNm s2 approx Material BS970 303 S31 grade stainless steel Geometry gap with disc edge lev...

Page 113: ...rled grips to handle the lid Avoid touching the under surface these can either be gripped manually or by using a pair of fine nosed pliers 4 Thread the geometry shaft up through the hole in the cup li...

Page 114: ...groove on top of the cup as shown in Figure 9 3 on the previous page 3 Zero the geometry gap in the usual way NOTE At the zero position the lugs on the geometry shaft will be approximately 2 mm clear...

Page 115: ...f the interface to give the contribution due to the interface A two dimensional analog of the concentric cylinder geometry is used to give the interfacial viscosity Details of the analysis are given b...

Page 116: ...Ensure that the Zero normal force before run box is checked under Options Experiment Pre experiment 5 Use a squeeze test similar to that shown below in Figure 9 4 This can be set up using Procedure N...

Page 117: ...shown on the previous page to 19527 m 9 Lift and fix the lid You may find it convenient at this stage to add any surfactants to be used 10 After addition of surfactant gently add the less dense fluid...

Page 118: ...bove But MA is half the torque obtained at for Fluid A from the calibration routine and MB is half that obtained for Fluid B since for the calibration routines the cell is filled with the relevant flu...

Page 119: ...velocity are in rad s 1 Note the units of interfacial shear stress in the S I system are N m 1 the units of interfacial shear rate are s 1 and the units of interfacial viscosity are Pa s m pascal sec...

Page 120: ...AR 2000 Operator s Manual 120...

Page 121: ...ilter elements in the filter regulator before use Replace whenever necessary replace the air bearing clamp when the air in ON and always ensure it is in place when the instrument is moved or when the...

Page 122: ...ply unnecessarily touch the air bearing spindle unless the air is on This includes attaching and removing geometries use the rheometer head as a lifting point operate the instrument without a water su...

Page 123: ...ertia measurement feature in the software See the online help for information Units Nm s2 Stainless Steel Acrylic Diameter mm Standard Solvent Trap Standard Solvent Trap 20 1 06 2 80 0 45 0 43 40 4 35...

Page 124: ...AR 2000 Operator s Manual 124 Cylinder Axis through center of cylinder h height of cylinder The approximate densities x 109 Nm 4 s2 are Steel 7 83 Acrylic 1 19 Aluminium 2 71...

Page 125: ...rad 1 N m 2 rad 1 x 10 1 Modulus Shear Rate g s 1 s 1 No change Shear Strain No change Shear Stress dyne cm 2 N m 2 Pa x 10 1 Torsional Force dyne cm N m x 10 7 Viscosity Poise P Pa s 1 cP 1 mPa s Mea...

Page 126: ...AR 2000 Operator s Manual 126...

Page 127: ...6 0 00104 1 5 40 39 0 45 38 16 0 0596 0 00156 2 0 40 52 0 60 28 65 0 0596 0 00208 4 0 40 105 1 20 14 33 0 0596 0 00416 0 0 60 0 5 60 13 0 60 114 6 0 0177 0 00015 1 0 60 26 1 20 57 3 0 0177 0 00031 1 5...

Page 128: ...AR 2000 Operator s Manual 128...

Page 129: ...m error Eitherbadfirmware or Tryreloadingfirmware otherwisecallfor or hardware fault service 2 RAMerror Hardwarefault Callforservice 4 DualportRAMerror Hardwarefault Callforservice 40 Batteryfailure L...

Page 130: ...ge is displayed if there are either faulty normal force temp sensors or if you have for instance frozen the instrument with excessive liquid nitrogen Operator stop event This message is displayed when...

Page 131: ...This message is likely caused by fault damage to the Pt100 or thermocouple Other Messages Other error messages may be displayed These are usually indicative of problems with the rheometer that can onl...

Page 132: ...AR 2000 Operator s Manual 132...

Page 133: ...e Standard 1 11 ABSpolymersamples 10 ETC Parallel Plate Kit 543306 901 ItemNo Description Quantity 1 LowerPlateAssembly 1 2 UpperShaft 1 3 25 mm Parallel plates 1 set 4 40 mm Parallel plates 1 set 5 M...

Page 134: ...AR 2000 Operator s Manual 134...

Page 135: ...on 11 dimensions 31 do s and don ts 121 electronics 23 error codes 129 flow rate 28 geometries 55 installation requirements 36 internal fuse 36 keypad 51 LCD display messages 129 lifting and carrying...

Page 136: ...r assembly 54 computer connecting to electronics control box 37 concentric cylinder systems 58 conical end 58 double concentric 59 form factors 127 recessed end 58 setting up 41 cone and plate system...

Page 137: ...tor 23 E edge effects 65 electrical safety 17 electronic control box 49 EMC Conformit 16 EMC Conformity 15 encoder disc 23 Environmental Test Chamber ETC specifications 32 Environmental Testing Chambe...

Page 138: ...overfilling 65 setting 57 underfilling 65 zeroing 27 gap zeroing 27 geometries 47 geometry See also measuring system aluminum 55 attaching 64 choosing the best 60 concentric cylinders 58 cone and plat...

Page 139: ...face position determining 116 introduction 111 mapping 114 ordering parts 119 procedures used with 115 references 119 set up 113 shear rate 119 shear stress 119 specifications 112 torque 115 using dur...

Page 140: ...m general description 55 microprocessor 26 moments of inertia calculation 123 to 124 motor spindle 55 N Newtonian viscosity 53 normal force transducer 29 Notes Cautions and Warnings 10 O operation gen...

Page 141: ...ressure Cell aligning manifold 100 cleaning the cup 106 cleaning the rotor assembly 106 components 87 Concentric Cylinder rotor 89 cup 88 disassembling rotor 107 gauge port 88 inlet port 88 installati...

Page 142: ...ee way valve 101purge gas connecting to rheometer 45 R relative humidity 36 rheology definition 22 rheometers brief history 21 Rotational Mapping 26 26 to 27 Rotor 55 S safety chemical 19 electrical 1...

Page 143: ...tion 27 to 29 thermocouple 48 U units 125 Upper Heated Plate UHP air bearing clamp 81 attaching to rheometer 68 calibrating 78 circulating fluids 74 configuring 77 connecting the Cooling Control Unit...

Page 144: ...Operator s Manual 144 V viscosity definition 21 W warnings important information 11 water connecting to rheometer 38 water bath 28 work surface 36 Z Zero Gap 51 zero heat flow sensor Upper Heated Plat...

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