Operating instructions proRheo R 180
Contents
1. Select quick single point measurement as an instrument setting Sub code 16 see section 4 2 1 c If no printer is attached the display stops after the interval time has elapsed until you switch the instrument off or attach a printer stopwatch function 5 3 4 Printing out data lf you have attached a printer and have selected INTERVAL the data are printed out online see section 4 2 The instrument settings you have selected and whose value you have entered are printed out as a title Exceptions are the titles DATE and SAMPLE NO which are always printed out If you have not selected INTERVAL or have entered 0 zero as its value you can press the printer key during the measurement the data currently displayed are printed out 5 4 Measurement mode AUTOMATIK Step programs with data storage Select this measurement mode if you wish to use step programs to measure the viscosity of the sample at several shear rates The samples are automatically measured at 8 different shear rates and the results are stored You can use the resulting data to plot a flow curve to characterize the sample As a special case you can perform single point measurements in this measurement mode to store your data see below You have a choice of 10 programs You can enter the lowest and highest shear rate D MIN D MAX The proRheo R 180 calculates the linear intermediate steps D MIN and D MAX of program 0 are not stored but the results are You can u2. data the sample temperature T in C the torque M in mN m the shear rate D in s the shear stress T tau in Pa the calculated viscosity n eta in Pa s the measurement system e g 11 the program step e g 6 during an automatic step measurement The proRheo R 180 can store 50 measurements of step programs or single point measurements An attached printer records the measurement data With the aid of the rhesy 80 evaluation software measurement data can be transferred to an attached computer and evaluated thus allowing the proRheo R 180 to be incorporated in computer aided data acquisition systems The rhesy 80 control and evaluation software allows you to perform computer aided measurements Version 03 09 3 Manual R 180 lt P proRheo 2 Startup procedure 2 1 Location In the lab the stand with the proRheo R 180 should be positioned on a level bench with sufficient space for the peripherals that will be attached and a thermostat The proRheo R 180 operates faultlessly in an ambient temperature range between 10 and 40 C 2 2 Installation 2 2 1 Front view Digital display for temperature viscosity shear stress shear stress shear rate measurement system program step Key pad ON OFF Stand arm unit with locking screw Locking screw for instrument Control slit substance level Standrod Measuring system Comprising measuring bob and measuring tube Stand ba
3. regular intervals under identical measurement conditions particularly at the same temperature You should obtain the same result This method allows you to determine whether the instrument has undergone any change e Suitable substances are those whose viscosity behavior does not change over a lengthy period of time e g motor oils silicon oil paraffin You should keep ample quantities of such an oil on stock and use it only once for the measurement in other words do not pour the substance back in the bottle on completion of the measurement e Substances exhibiting Newtonian behavior are preferable there should be a Straight line between several measurement points and the zero point Glycerol hygroscopic and water viscosity too low are unsuitable Version 03 09 20 Manual R 180 lt gt Rh proRheo 6 2 Errors and malfuntions Error malfunction Reason _ The lamp of the power Not attached to power Check power supply supply unit does not light supply or power supply up defective Call proRheo Service The entries are wrong Switch off the R 180 and The display showes or not stored correctly simulataneously press the hand key Reselect or gt READY reenter language and code Internal buffer battery Call ProRheo service is discharged The proRheo R 180 The battery is Attach the R180 to the switches itself off discharged battery power supply and charge operation only battery Battery faulty Call proR
4. 112877 Cap 3 for measuring tube 3 112878 Power supply Version 03 09 22 Manual R 180 lt P proRheo 6 3 2 Optional accessories Order No Measuring tube of aluminium set of 100 111 931 Measuring bob No 4 14mm 10 5mm for high viscosities 111 906 Measuring bob No 9 31 5mm 45mm for high shear rates and low viscosities forms with measuring tube 1 measuring system 19 111 875 Double slit system MS 0 for low viscosities 112 823 Measurement systems ISO 2555 set 111 948 Measurement system TV set 111 949 Software Rhesy 180 T 4000605 Software Rhesy 180 A 4000608 Software Rhesy 180 S 4000610 Cable RS 232 4010920 Cable USB 4010922 Version 03 09 23 Manual R 180 6 4 Technical data 6 4 1 Measurement head Measurement principle Rotational speed Range Accuracy Torque range Temperature Recording Range Resolution Admissible ambient temperature Battery capacity Data memory Data output Printer Computer Dimensions measuring instrument e Width x depth x height e Weight Power supply unit Voltage Current o Frequency o Type of protection Approvals Version 03 09 xP proRheo Rotational viscosimeter with cylindrical measurement 5 to 1000 min 0 5 of inputted set value 0 25 to 10 0 mN m Pt100 sensor 0 to 120 C 0 2 C 10 to 40 C 1 hour with full load operation Lithium battery lifetime min 3 ye
5. ad of the shear 05 265 rate D 0 1 530 0 2 1060 0 4 2650 1 5 10 600 Version 03 09 26 Manual R 180 xP proRheo Measurement systems TV Rotational speed range 5 to 1000 min 71 1 0 01 10 With these systems the speed n is shown fe yee es instead of the shear 73 0 1 530 rate D 74 0 5 2400 75 1 5 9300 6 4 4 Step programs Step Program 1 Step Program 2 Rotational D s 1 n min 1 Rotational D s 1 n min 1 speed step speed step 64 6 50 6 46 5 0 J J J Version 03 09 OT 6 4 5 RS232 interface definition The following settings apply fort he RS232 interface e Baud rate 2400 to 9600 baud see section 4 2 3 e Data bits 8 e Stop bits 1 e Parity none e Mode full duplex Connector DB 25 pin male Pin Number Signal direction Output Transmit Data 6 4 6 Printer Attachment via parallel interface Centronics You can attach a printer using a normal printer cable 25 pin male Centronics Character set setting e USA or GB e IBM emulation Version 03 09 28
6. aeeemensces 13 5 3 2 Terminating a Single point MEASUFEMENT ccccccceeeceeeeceeeceeeeseeeceeeeneeesseeenes 14 5 3 3 Time Meah esasen iepene aa aa 14 5 3 4 Pring OUt dlse EE iT 15 5 4 Measurement mode AUTOMATIK Step programs with data storage 15 5 4 1 Single point measurement with data StOPAGE cccccceeeeeseeeeeeeeeeeeeeseeeeneeeess 16 5 4 2 PrO COOU peas R 16 5 4 3 Programs 3 9 changing shear rateS ccccceeccseecceeeeeeeeceeeeneeeceeeeneeenseeenees 17 5 4 4 End of the measurement ccccccecceeececceeeceeeceeececceeceueesseceeseeeseeesaeeseeesaees 18 5 4 5 POAR OU dee a EE E EE E E 18 5 4 6 Deleting measurement data cccccccseececeeeeceeeeeseeeeceeceeseeeesueeeseusessusessueeesanes 18 5 4 7 Me RAN SIC E E E E A A E E E A E E 19 PRIN n a ectmateee edeseseectecccueue osenece sauces areeces 19 6 1 INTE NCS ia sencasae sehen a EEEE EE EEEE EEE a aE 19 6 1 1 Cleaning instrument DAS seise cece society el ereceretieudenccsnelctaceunndbernesuvinesteeeddcesceeleene 19 6 1 2 Calibrating and teSting ccccccccsseccesseeeeeeeeeeeseeeeeseeeesseeeeeseeeeeeseeeeeseaeeesaeeeeess 20 6 2 Errors and malfuntionS ssnsnsnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnmnnn 21 6 3 ACCCSS OTIO Sasirnane 22 6 3 1 Standard accessories iN COSC xs cecnnsecscetacccnsedine Hesdoentnceseecheexooed didiedcecentdsesinedices 22 6 3 2 Optional accessories ac widnccssccnevenerecosnevest
7. anctcesseaansncnnsabisitdiies ieuacanctendecdesenecdoued 23 04 Technical dala sisson i aaa 24 6 4 1 Measurement head ecaceo sient cnscecoencssreeinsacndaedcdecnerauniiscnmceamuntdemenmaccetabdeenunamiaeesee 24 6 4 2 Measurement systems following DIN standard 53 019 cceceeeeeeeeeneeeeeeees 25 6 4 3 Relative measurement SYSTEMS cccceeccseeeceeeeneeeceeeeeeeeceeeesueeseeeeeeeeneeesnaes 25 6 4 4 SED Prod ANO coors css sees reece tres E N 27 6 4 5 RS232 interface definition cece cecccceccceececeeeceeeeeeeeceueesueeceeeesueesueeseeeseeesaees 28 6 4 6 FNL E EEE ETE S EE AA A E EE 28 Version 03 09 2 Manual R 180 gee Rh proRheo 1 Introduction The proRheo R 180 is used for the simple determination of the viscosity of a wide range of substances in the lab or field It is equipped with a rechargeable battery that allows it to be operated for approx one hour at full load without connection to the power supply The proRheo R 180 is a rotational viscometer Its open concentric measurement system allows measurements by immersion The measuring head and measuring tube are rigidly coupled the measuring unit is driven by a direct current motor A built in microprocessor calculates the values for the viscosity with the aid of the measured torque the set shear rate and the measurement system used The sample temperature is measured by a Pt 100 sensor immersed in the substance The display shows you the following
8. ars Parallel interface Centronics Serial interface RS232 or USB 105 x 135 x 350 mm 2 2 kg 100 120 V 10 approx 320 mA and 220 240 V 10 approx 160 mA 50 60 Hz Europe EN 60950 Electrical safety EN 55022 Interference suppression Canada CSA 22 2 No 151 M1986 24 Manual R 180 gee Rheo pro 6 4 2 Measurement systems following DIN standard 53 019 System Tube Bob Shear Rate Viscosity eae No Omm No mm No s Pa s imi 6 5 1291 0 003 5 10 Ca 24 6 5 1291 0 005 40 0 Ca 16 6 5 1291 0 025 200 Double slit measurement system following DIN standard 54 453 Sedans Tube Bob Shear rate Viscosity aie y mm D mm s1 Pas imi 50 28 25 81 6 5 1291 0 001 6 4 Ca 38 32 04 30 6 4 3 Relative measurement systems Mesuring bob 2 3 and 4 with measuring tube 1 Eee Lines f LA mm s Pa L 1 7 354 0 02 121 0 8 152 0 14 1090 0 8 152 0 27 2180 These viscosity ranges are measured and are just approximate Version 03 09 25 Manual R 180 xP proRheo Mesuring bob 1 2 3 and 4 without measuring tube Rotational speed range 5 to 1000 min 7 0 05 80 With these systems the speed n is shown 1 1 0 BY instead of the shear 0 2 1300 rate D 0 4 2000 Mesurement systems following ISO standard 2555 Rotational speed range 5 to 1000 min 0 01 With these systems E the speed n is shown 0 02 105 inste
9. ed at the same shear rate With D MAX 0 the proRheo R 180 performs a single point measurement The display shows PLEASE WAIT for approx 5 s before the measured value appears You can then view the following data the sample temperature T in C 0 the torque M in mN m the shear rate D in s the shear stress T in Pa the calculated viscosity n in Pa s the measurement system e g 11 the program step e g 6 The R 180 acquires several measured values per second and displays the recalculated mean values The measurement time for a step is 10 s The proRheo R 180 stores the mean of the calculated values for every step in each case Before every step the message PLEASE WAIT is displayed for approx 5 s During this time the proRheo R 180 acquires no measured values Note a If the torque is too large gt 7 5 mNom you are shown the message M TOO HIGH M torque In operation with the power supply unit the proRheo R 180 switches itself off at a torque of approx 11 mNm You can either enter a lower value for D MAX or D MIN or if possible use a more suitable measurement system lf the torque is too high during the measurement the proRheo R 180 automatically returns to the step preceding that which it has just reached in other words instead of 8 steps it performs e g 6 If the torque is too low lt 0 25 mN m you are shown the message M TOO LOW In this case you can enter a larger value for the shear rate or use a
10. he date 1 and the sample number 2 enter 3 1 2 b With code 31 you activate all instrument settings Press the E key to confirm the entry The display shows MEASURE MODE TEMPERATURE 4 2 2 Other measurement systems You can use measurement systems that are not listed in accessories section 8 if you store these under a number in the proRheo R 180 To ensure that the proRheo R 180 calculates the correct shear rate and shear stress for these measurement systems you have to determine and enter the appropriate conversion factors These factors are stored Press the automatic key and at the same time switch the instrument on CODE appears on the display Enter 32 and confirm with E SYSTEM No The numbers 90 97 are available for your own measurement systems Enter number and confirm with E kD Enter the conversion factor for the shear rate kD and confirm with E the proRheo R 180 calculates this using the formula D kD n n speed D in s 1 n in min 1 KTAU Enter the conversion factor for the shear stress kTau and confirm with E the proRheo R 180 calculates this using the formula T kTAU M M torque Tin Pa M in mNm Note You can always overwrite the number and factors of a measurement system by reentering the appropriate numbers values using the above procedure 4 2 3 Baud rate You can choose the baud rate between 2400 and 9600 baud Press the automatic key and at the same time switch the ins
11. heo service instrument can be operated using power supply Power supply unit Attach to the power supply disconnected from power supply Torque too high with On restart either enter single point lower value for shear rate measurement or select a smaller measuremt system Torque too high with On restart enter lower step program value for D MAX After an increase in the speed shear rate a test is first performed to check that the torque is lower than 10 mNm If it is higher all later steps are skipped If however e g in step 6 a torque of 10 mNm is almost reached the next speed is tested If the difference between the steps is large the torque can be so high that the instrument switches itself off in operation with the power supply unit or when the battery is almost completely discharged Version 03 09 21 Manual R 180 lt gt Rh proRheo 6 3 Accessories 6 3 1 Standard accessories in case Order No Measuring instrument Stand comprising Stand base with adjustment screw Stand rod Stand arm with locking screw Measurement system of stainless steel comprising Measuring bob 1 30 mm 45 mm 112820 Measuring bob 2 24 mm 36 mm 112821 z Measuring bob 3 14 mm 216 mm 112822 Measuring tube 1 32 54 mm 112932 Measuring tube 2 26 03 mm 112937 Measuring tube 3 15 8 mm 112938 Cap 1 for measuring tube 1 112872 Cap 2 for measuring tube 2
12. hout data storage Starting single point measurement without data storage Starting step programs Prints out measurement records or a data line during single point measurement without data storage Transfers data of all measurement records to the computer Deletes data of all measurement records Select language E 0 g 1 1 2 it 3 sp 4 hi 5 Select code Date 1 Sample No 2 Density 4 Time interval 6 Quick measurement 16 Other measurement sys 32 Prints out status Manual R 180 lt gt Rheo is pro Entry of numeric values code or program numbers Contimaton tenens Confirmation of an entry Simultaneously press this key when switching on the display shows gt O lt Select Zero adjustment see section 5 2 0 zero Delete data see section 5 4 6 Simultaneously press this key when switching on all data of stored lt measurements are deleted display CLEAR With entry of letters numbers deletes from right to left Terminates the single point measurement in the measurement mode HAND Select language see section 4 1 Hand Simultaneously press this key when switching on the displa shows LANGUAGE Select single point measurement without data storage when 9 MEASURE MODE is shown on the display lt 8Decimal point during the entry Select code for instrument settings and own measurement systems see section 4 2 Simultaneously press this key when sw
13. into consideration the heat losses due to air circulation around the measurement system as well as condensation We advise covering the top of the thermostat bath around the measuring tube 5 2 Zero adjustment You should perform a zero adjustment with the measurement system in the absence of sample every day and after each change of the measurement system The zero adjustment must be done under the same operating status as the following measurements Batterie or power supply operation Version 03 09 12 Manual R 180 xP proRheo Press the key 0 zero and simultaneously switch on the proRheo R 180 As long as the instrument executes the zero adjustment the display shows a gt 0 lt Then the follwing appears MEASURE MODE TEMPERATURE Note a The zero adjustment is stored b Whenever possible you should perform the zero adjustment after the instrument has warmed up Allow the proRheo R 180 to run at a shear rate of 50s for approx 30 s Caution With an empty measurement system the proRheo R 180 should not rotate faster than D 200 s 5 3 Measurement mode HAND Single point measurement without data storage Select this type of measurement if you wish to determine the viscosity of the sample at one shear rate The proRheo R 180 does not store the measured data of this measurement mode To store single point measurements you must perform these under the AUTOMATIC measurement mode see section 5 4 1 5 3 1 Proced
14. itching on the display shows CODE Select step programs or single point measurement with data storage when MEASURE MODE is shown on the display Letter C during the entry of a sample number Automatic Printer Print out status see section 4 3 Simultaneously press this key when switching on the instrument settings stored in the proRheo R 180 are printed Prints out a data line in the measurement mode HAND Prints out the stored measurement data Letter B during the entry of a sample number Computer Transfers the measurement data after a step porgram Letter A during the entry of a sample number Sah Version 03 09 8 Manual R 180 lt gt Rhes pro 4 Settings 4 1 Language When you switch the proRheo R 180 on for the first time the display is in English To ensure that the text appears in the language most appropriate to your needs you are offered a choice of 6 languages Exceptions are the words LANGUAGE CODE TRY AGAIN and CLEAR Press the hand key and at the same time switch the instrument on LANGUAGE appears on the display Enter one of the following numbers for your language 0 English 1 Deutsch 2 Francais m 3 Italiano 4 Espanol 5 Nederlands Press the E key to confirm the entry Your language is stored by the proRheo R 180 until you define a different one 4 2 Code for instrument settings and other measurement systems 4 2 1 Instrument settings With the entry of a code you can set
15. more suitable measurement system see sections 6 4 2 or 6 4 3 5 4 3 Programs 3 9 changing shear rates If you wish to change the shear rates of one of the programs when PROGRAM No is displayed you must enter the appropriate number three times e g 444 you can not see the last number Version 03 09 17 Manual R 180 lt gt Rh proRheo confirm with E enter the new value of DMIN then that of D MAX and confirm with E The new values are stored and the proRheo R 180 starts the measurement 5 4 4 End of the measurement When the measurement is at an end the display shows MEMORY FREE 23 example READY The proRheo R 180 can store the data of 50 step programs or single point measurements To start the next measurement immediately press any key except the printer key The display shows MEASURE MODE TEMPERATURE 5 4 5 Printing out data In the AUTOMATIC measurement mode the data of step programs and single point measurements are not printed out online On completion of a measurement or after the instrument has been switched on press the printer key The proRheo R 180 immediately starts with the printout of the last measurement and the display shows 26 example lt E gt ALL RECORDS 26 number of measurements not yet printed out If you wish to have the data of all measurements that are not yet printed out press the E key The proRheo R 180 continues the printout until the first stored measureme
16. nt If you wish to print out the measurement before last press the printer key The measurement before last is printed out the display shows the number of measurements not yet printed out You can repeat this procedure until the data of all measurements have been printed out To start the next measurement press any key except the printer or E key On the display appears MEASURE MODE TEMPERATURE 5 4 6 Deleting measurement data To delete the stored data of all measurements proceed as follows Version 03 09 18 Manual R 180 lt gt Rh proRheo switch off the proRheo R 180 Press the arrow key and simultaneously switch it back on during the clearing of all measurement data the display shows CLEAR 5 4 7 Data transfer You can transfer the measurement data if you have loaded the Rhesy A evaluation soft ware or the Rhesy S control and evaluation software on your computer If you press the computer key at the end of every measurement the data are transferred After the data have been transferred the display shows MEASURE MODE TEMPERATURE in other words you can start the next measurement Note If after several measurements you transfer the data of the last measurement the data of all measurements stored up to this point are always transferred If you switch off the proRheo R 180and press the computer key after switching it back on once again all stored measurements are transferred To avoid thi
17. proRheo a pa gt ETITA 2 GRANE Operating instructions proRheo R 180 ii Lor Ue PS eis j ie j ae Oe N i a a MEENA An i iy 8 i ra Bit real proRheo GmbH Bahnhofstr 38 D 75382 Althengstett Tel 49 0 7051 77176 Fax 49 0 7051 77187 office proRheo de www proRheo de Manual R 180 gee Rh proRheo DWAR O CU CUO cciacs tetas tects ssns cua aio date creme nn ensatinossnutcewwatendssusunetevecsnaweeswssneutadpuanawesiessnaemuiensis 3 2 ioe Lee E Cire accretion AEA E A E AE A O 4 2 1 LOCION aer E E EAA 4 2 2 aei ene a aE E E E E PA A A I T EEE A E EE 4 2 2 1 FORT VION renee n E T A 4 2 2 2 ROVE W ree ae E E E E r a E E a 5 2 2 3 MAENOR 6 3 INE KO 0G a S 7 E e E E E E O O E E 9 4 1 Language e A E ee ceeemssseseeceree 9 4 2 Code for instrument settings and other measurement systems ccceseeeeeeees 9 4 2 1 Mstrument Settings ice cons sett cnn sinatoaibiheltamtaunte contidsetadeun inaaianei adada 9 4 2 2 Other measurement SYSTEMS cccseececeeeeeeceeeeeceeeeeeseeeeeeseeseeeseeeeeeaaeeesaeeeeees 11 4 2 3 BS tees etoile E E A ea ecteoaete nomen teva O E nisssec 11 AS USTE COF aeirasetea recat reson iin demesne E Ea 12 5 MICAS UES TN CTS sirpin R AA 12 5 1 WRG RIIN OS CNG eare E E 12 5 2 ZrO ACIS UNG INU sia ee eee ete wees EEE EA 12 5 3 Measurement mode HAND Single point measurement without data storage 13 5 3 1 FC SS asc tasic se ess este acim a nesses E mecca pmax ieaeweries ieeeee
18. s you must delete the stored data before starting a new measurement Switch off the proRheo R 180 Press the arrow key and simultaneously switch it back on during the clearing of all measurement data the display shows CLEAR 6 Appendix 6 1 Maintenance Warning The proRheo R 180 and the power supply may be opened only by qualified service engineers 6 1 1 Cleaning instrument parts lf the measuring head drive shaft coupling or stand are really dirty or badly contaminated clean only with a cloth moistened with soapy water gasoline or alcohol To clean the measuring head and measuring tube always uncouple these from the proRheo R 180 You can use appropriate solvents for the measurement systems Never place the O rings of the caps in organic solvents Lightly grease them with silicone grease Version 03 09 19 Manual R 180 xP proRheo O rings material NBR butadiene acrylonitrile elastomer Internal diameter cord thickness 26 3 mm 20 3 mm 9 3 mm 6 1 2 Calibrating and testing The proRheo R 180 can be calibrated only by proRheo service Special instruments and specialized knowledge are required To test whether the instrument is measuring properly and or proper measurements have been performed you can use calibration oils for viscosity measurements Another possibility is to measure a suitable substance with the proRheo R 180 after purchase or a calibration and test the instrument with the same substance at
19. se this program for rapid scanning of a shear rate range to determine the suitable D MIN D MAX values for further measuremenis Measurement is performed at rotational speeds between 5 100 min in geometric steps see section 6 4 4 You can not change this program You can enter the lowest and highest shear rate D MIN D MAX for 7 programs D MIN D MAX remain stored for every program The proRheo R 180 calculates the linear or geometric intermediate steps in each case You can change and print out these programs Measurement is performed at rotational speeds between 1 50 1000 min in geometric steps see section 6 4 4 You can not change this program Version 03 09 15 Manual R 180 lt gt Rh proRheo pe see sections 5 4 3 5 4 1 Single point measurement with data storage If you enter the value O zero for D MAX in the step programs 0 or 3 9 a single point measurement with data storage follows The measurement is performed with a shear rate D D MIN The measurement time is 15 s with the mean value being calculated from the measurements during the last 10s 5 4 2 Procedure Immerse measurement system without cap in the sample or add the sample to the closed measurement system fill volume see section 10 2 Switch the proRheo R 180 on and wait until the display shows MEASURE MODE TEMPERATURE Note If you have to thermostat the sample wait until the desired temperature is displayed before s
20. se with adjustment screw for uneven suraces P lt gt ie Version 03 09 4 Manual R 180 lt gt Rh proRheo Position stand rod in stand base and secure with the screw Slide stand arm unit over stand rod and secure with the screw Install the proRheo R 180 and secure with the screw 2 2 2 Rear view Serial interface RS232C Connector for computer Parallel interface Centronics Connector for printer Connector for line supply and charger Connect to the power supply Attach a printer as appropriate Attach a computer as appropriate Version 03 09 5 Manual R 180 lt P proRheo 2 2 3 Side view Handle for use without stand Grip for stand Bayonet coupling for measuring tube Drive axis with bayonet coupling for measuring bob Temperature sensor Pt 100 Connect the measuring bob that you need for your first measurement to the drive axis Note The higher the viscosity of the test sample the smaller the measuring bob used see sections 6 4 2 and 6 4 3 Push the measuring tube corresponding to the measuring system over the mounting and connect Switch on the instrument The display must show proRheo R 180 followed by MEASURE MODE TEMPERATURE Version 03 09 6 Manual R 180 3 The keypad xP proRheo Function During operation Together with ON I Delete C Letter B Letter A Letter Version 03 09 Terminates single point measurement wit
21. stress T in Pa the calculated viscosity n in Pa s the measurement system e g 11 The proRheo R 180 acquires several measured values per second and displays the recalculated mean values During the measurement you can change the shear rate Press one of the numeric keys 1 to 9 SHEAR RATE appears in the display Enter new value and confirm with E Note If the torque is too large gt 10 mNm you are shown the message M TOO HIGH M torque In operation with the power supply unit the proRheo R 180 switches itself off at a torque of approx 11 mNm see section 8 You can either enter a lower value for the shear rate or if possible use a more Suitable measurement system If the torque is too low lt 0 25 mNm you are shown the message M TOO LOW In this case you can enter a larger value for the shear rate or use a more Suitable measurement system see sections 6 4 2 or 6 4 3 5 3 2 Terminating a single point measurement To terminate a single point measurement either press the arrow key or switch off the instrument 5 3 3 Time interval If you have attached a printer the recalculated viscosity is printed out Note a The time intervals outputted by the printer do not always coincide with the inputted value owing to rounding and the time response Version 03 09 14 Manual R 180 lt gt Rh proRheo b With low shear rates the measurement time can be larger than the inputted time interval If this interferes
22. tarting the measurement see section 6 4 Press the automatic key Enter the measurement system and confirm with E Enter the values designation of the subsequent instrument settings that you have selected see section 4 2 1 and confirm with E in each case Note a If you confirm DENSITY with E without entering a value the message TRY AGAIN appears b The measurement system remains stored so that for the next measurement you either can confirm it with E or enter a new number PROGRAM No Enter the desired number and confirm with E If you have selected program 1 9 the proRheo R 180 immediately starts the measurement If you have entered 0 the display shows DMIN Enter the initial shear rate and confirm with E D MAX Enter the final shear rate and confirm with E Note a If no shear rates have been entered for the programs 3 9 the display shows D MIN followed by D MAX Version 03 09 16 Manual R 180 lt gt Rh proRheo The shear rate range is 6 5 1291 s for the DIN measurement systems 11 22 and 33 for other measurement systems see section 6 4 3 If you enter a number outside this range D MIN or D MAX immediately reappears on the display to allow the correct value to be entered If you enter a value for D MAX that is less than that of D MIN the proRheo R 180 first acquires the 8 measurement points in descending then in ascending order With D MAX D MIN the 15 measurement points are aquir
23. the following features of the proRheo R 180 The proRheo R 180 stores the corresponding configuration until you define a new code Record date sub code 1 Each measurement is recorded with a date The stored date is displayed before every measurement e lf it is Current you can confirm with E otherwise you must first overwrite it with the current date max 8 digits Note To enable the evaluation software to recognize entry of the date you must enter it in the format xx yy zz Record sample number sub code 2 Each measurement is recorded with a sample number Entry of a sample number is requested before every measurement input format max 16 characters Version 03 09 9 Manual R 180 gee Rh proRheo Calculate kinematic viscosity Sub code 4 In each measurement the measured dynamic viscosity is divided by the inputted density to calculate the kinematic viscosity this is displayed and recorded Entry of the density is requested before every measurement The kinematic viscosity v ny is the quotient of the dynamic viscosity n eta and the density p rho v n p Note The density p rho is entered in g mL The calculated kinematic viscosity v nu appears in the display field of n eta and has the unit 10 m s Its value is also printed out in the unit 10 m s in the VISCOSITY column Calculation of the kinematic viscosity is meaningful only if the dynamic viscosity is absolute measurement with DIN measurement s
24. trument on CODE appears on the display Version 03 09 11 Manual R 180 lt gt Rh proRheo Enter 33 and confirm with E Baud rate Enter 2400 4800 or 9600 confirm with E 4 3 Status record You can have a printout of the language instrument settings your own measurement systems with the appropriate conversion factors and the step programs 3 9 with the appropriate shear rates see section 6 3 that are stored in the proRheo R 180 Press the printer key and at the same time switch the instrument on you obtain the status record Note a The and _ signs under the code number show which sub codes have been selected selected not selected b Measurement systems with kD and kTau 0 have not been programmed 5 Measurements 5 1 Thermostating You can use a commercial thermostat for thermostating Close the measuring tubes with the caps and then immerse as far as possible in the thermostat bath ensuring that the thermostating medium can not splash into the substance The fill level of the measurement system should be as high as possible so that the temperature sensor is deeply immersed in the substance Inside of the measuring tubes a filling mark small groove indicates the filling volume for a DIN measurement system without the measuring bob take into account the thermal expansion of the thermostating medium and of the substances being measured With temperatures above 50 C you should take
25. ure Immerse measurement system without cap in the sample or add the sample to the closed measurement system fill volume see section 6 4 2 Switch the proRheo R 180 on and wait until the display shows MEASURE MODE TEMPERATURE Note If you have to thermostat the sample wait until the desired temperature is displayed before starting the measurement see section 6 4 Press the hand key Enter the measurement system and confirm with E Enter the values designation of the subsequent instrument settings that you have selected see section 5 1 and confirm with E in each case Note If you confirm DENSITY with E without entering a value the message TRY AGAIN appears SHEAR RATE Enter a value appropriate to the sample and confirm with E Version 03 09 13 Manual R 180 lt gt Brae pro Note a The values numbers for interval measurement system and shear rate are stored so that for the next measurement you can either confirm these with E or enter new values numbers b The shear rate range is 6 5 1291 s 1 for the DIN measurement systems 11 22 and 33 for other measurement systems see section 6 4 2 If you enter a number outside this range SHEAR RATE immediately reappears on the display to allow the correct value to be entered The measurement starts You are shown the following data on the display after approx 5 s the sample temperature T in C the torque M in mN m the shear rate D in s the shear
26. ystems Time interval measurement sub code 8 In the HAND measurement mode single point measurement without data storage the values remain in the display for the inputted time interval stopwatch function If a printer is attached the current viscosity is printed out in accordance with the time interval This allows you to determine the viscosity as a function of time e g with thixotropic or reactive samples Before every measurement the stored time interval is displayed and you can either confirm it with E or overwrite it Quick single point measurement sub code 16 In the HAND measurement mode single point measurement without data storage the torque is measured for approx 1 second at all shear rates lf measured values determined in this manner are not sufficiently stable at low rotational speeds you should not set sub code 16 in such a case the measurements last longer at a lower shear rate D lt 80 s e g approx at D 6 5 s You can determine the instrument settings by entry of a code comprising the sum of the respective sub codes Press the automatic key and at the same time switch on the instrument CODE appears on the display Time interval in s for single point measurements 6 Quick single point measurement 0 None of the instrument settings active 1 Date 2 Sample number 4 Density 8 1 Version 03 09 10 Manual R 180 lt gt Rh proRheo Example a If you wish to enter t
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