PORTABLE VISCOMETER VP 1000 - Labo
Contents
1. in laboratories or in research centres whenever quick and reliable viscosity readings are needed The VP 1000 viscometer has been developed specifically to fulfill viscosity readings in all kinds of fluids Only skilled or specially trained personnel must operate the viscometer Everyone who works with the viscometer VP 1000 must strictly follow the security precautions and observe the safety rules of the laboratory It is not allowed to operate the viscometer for any other purpose as the one described in this chapter No right to claim warranty will be granted if any of the above norms are disregarded 1 3 Security symbols Stand 1 02 01 10 Installation and operation of the VP 1000 viscometer are user friendly and very easy if instructions of this manual are strictly followed Be aware that any use of this equipment out of the scope described by the manufacturer may compromise the security of the operator Besides this and in order to stress the points that may represent any risk both for the operator and the viscometer itself this manual uses following symbols and messages Page 1 L 1 4 Safety notes a Battery operated Danger in explosive environment Page 2 Portable viscometer VP 1000 Series DANGER Wherever this symbol along with the message DANGER appears in this manual it indicates a potential personal injury hazard or damage on the viscometer For your securit2. 1000 Series This kind of fluids do not show a lineal relation between shear stress and shear rate Different working conditions have as a result different viscosity values Apparent viscosity is defined as the result of a fluid analysis This result can be reproduced in another viscometer only if analysis is carried out maintaining identical working conditions and following a defined working process Variables below influence results Viscometer model Dimensions of sample container Filling level Sample temperature Spindle Rotating speed Spindle protector yes or not Duration of test time dependant fluids Generally speaking each modification in the working method and working process will indefectibly lead to variations in final analysis results There are different behaviors within the non Newtonian fluids Samples whose viscosity decreases when increasing shear rate It is also called shearthinning flow behavior Most common pseudoplastic fluids are coatings milk ink and jam Under static conditions they might have a similar behavior to a solid For a correct evaluation of the fluid it is necessary to reach the yield value to make fluid flow so that product later shows any of the possible material characterizations Newtonian pseudoplastic or dilatant Examples toothpaste chocolate grease Viscosity of dilatant fluids increases when shear rate increases It is also call
3. a 800 ml beaker The setup of this component is very simple l Follow the instructions indicated below and T compare explanations with the illustration on the left side 2 protection cylinder Screw the separating shafts il 4 1 into the upper holes of the cylinder protector il 4 2 Join the structure with the upper disc il 4 3 using the three Il 4 screws included in delivery Once the spindle protector has been assembled it must be attached to the viscometer Insert the pivot shaft of the viscometer very carefully onto the upper disc of the protector as indicated in the illustration With the hex key included in the delivery set tighten the screws as indicated in order to fix the protector with the pivot shaft of the viscometer Check how to make this step looking at illustration 5 This operation should be realized very carefully to prevent impacts on the spindle or damages on the pivot shaft After setting up the protector the portable viscometer VP 1000 can remain in upright position without having to hold it Insert the spindle in the pivot shaft as describe before Instrument is now ready to operate Il 5 Page 8 Stand 1 02 01 10 Portable viscometer VP 1000 Series 3 6 Setting up the stand optional Proceed as follows Insert the bar into the base hole as illustration beside indicates Tighten the star knob to fix the bar onto the
4. base Insert the viscometer support into the bar Use the other hand to turn the knob and place the support at the desired height After setting up the stand place the viscometer on it as illustration shows This operation should be carried out very carefully to prevent impacts on the spindle or damages on the pivot shaft Insert carefully the viscometer through the opening When the pivot shaft is inside the support pull A gently the unit down in order to fix it onto the support Tighten firmly the viscometer to the support with the screws delivered using the hex key Insert the spindle into the pivot shaft The viscometer is now ready for operation As the viscometer stand is not equipped with regulating feet the surface where l the instrument is placed must be perfectly levelled Stand 1 02 01 10 Page 9 Portable viscometer VP 1000 Series 4 Operation a Initial turn on and configuration VP 1000 n a lt Initial turn on and configuration Page 10 The configuration of the VP 1000 viscometer is very simple because the only parameter that can be modified refers to the spindle The information on the display can be modified using the ENTER button and the two arrows 4 up and v down Turn on the viscometer by pressing for an extended time between 6 and 10 seconds the ENTER button After that an introductory display with a symbol of the battery state appear
5. precautionary messages are not observed Viscotech Hispania S L is not liable for any occurring damage Once the warranty period has expired we recommend to sign a service contract in order to guarantee the perfect functionality of the instrument For more information on this subject please contact your local dealer Documentation This user manual will be delivered together with each instrument Further copies can be ordered at the local dealer by giving the serial number of the instrument the number of the user manual and the date of issue This user manual is available in the following languages English and Spanish Errors and omissions excepted Subject to amendment and improvement without further notice Manufacturer VISCOTECH HISPANIA S L Vidriers 21 43700 El Vendrell SPAIN Tel 34 977 66 80 20 Fax 34 977 66 80 30 viscotech myr com es www myr com es Stand 1 02 01 10 Page 3 Portable viscometer VP 1000 Series 2 Technical data Portable viscometer VP 1000 Series pC Rechargeable batteries4xAA R6 _ pod Rechargeable 2 500 mAh ee eae ee ee Batteries autonomy 24 30 hours under continuous operation fixed rpm 20 rpm 30 rpm 50 rpm or 60 rpm selected spindle R2 R7 Optional R1 dynamic viscosity mPas full scale percentage max reading scale battery level indicator Displayed data Compatibilit 100 compatible with Brookfield method DE standard spindle set R2 R7 optional
6. the pivot shaft with one hand and screw up the spindle onto it using the other hand To screw up the spindle turn it in the direction shown in the illustration on the left Once it has been inserted submerge the spindle into a fluid until it reaches the notch that indicates the top immersion level allowed In doing so please take care not to hit neither the spindle nor the pivot shaft with the vessel to avoid distortion of spindle perpendicularity Be very careful when you perform this operation in order to prevent the spindle from bending or the pivot shaft from suffering damages Both the spindle and the screw must be in perfect conditions and extremely clean R7 spindle must be immersed up to the middle mark included in the shaft recess Spindles are made of stainless steel Each spindle carries the reference name on its head Page 7 Portable viscometer VP 1000 Series s s Setting up the spindle protector In order to protect the most sensitive components of the viscometer the spindle and the pivot shaft from impacts the portable viscometer of the VP 1000 Series is delivered with a 3 upper disc protection cylinder This element allows also to perform measurements limiting the quantity of fluid to the volume that Wo the cylinder can contain Thanks to this element results are 1 separating f shaft more accurate and measurements can be taken without holding the unit as the cylinder fits perfectly into
7. Myr PORTABLE VISCOMETER VP 1000 My F vp 1000 VISCOTECH HISPANIA S L Viscotech Hispania S L would like to thank you for the purchase of this equipment and for your confidence in choosing our company We are commited to offer you the best and most reliable service Don t hesitate to contact your local dealer for any question related to this viscometer Your Viscotech Hispania S L team User manual Stand 1 02 01 10 Portable viscometer VP 1000 Series Contents 1 General information sssessesssssssssossssossssoscssesssssessssussssosssssssssosesesessee 1 L 1 Introduction sissies sveeseise sindaleuaavisva nase vnkawda suas siseses oie veka useekewebiaesndedeeadessvesenss 1 I 2 Intended USe cos ssecssescccasciinecsss danecseswaved se sassee se asust oeio beret spene oreari S roae eas 1 1 3 Security symbols ssssseesessssoeessooossessesoooosessesooossesessosooosesscosoossessesooossesee 1 1 4 Safety Notes eones ernes ienai ess eotie ii een eaea ai eE esaat tose 2 1 5 Certification warranty and documentation sssssssooseesesooosseesecsooosseeee 3 2 Technical data sissies cvsnsss sesescssiacwewsuasiniewenaeveawcss ear ccadecewecncebeessarecusacsnseseder 4 3 Setting up the viscometer 4 cicccssecsssecssccsusecstecoscncesccesseccssvccctccsesccsesosses 5 3 1 Reception and unpacking of the instrument ccccccccceccccccecccecceees 5 3 2 Scope of delivered Parts osooossesessssss
8. R1 E Model VP1020 200 200 000 mPas Viscosity ranges Model VP1030 130 133 300 mPas with standard spindle Model VP1050 80 80 000 mPas Model VP1060 66 66 600 mPas 2 of full scale Repeatability O O Weight SOG i Ree es es from 10 C until 40 C at a max rel humidity of 80 without Operating conditions condensation altitude up to 2000 m M S L for indoor use only Pollution degree aooo Protection category 1 20 SoS Page 4 Stand 1 02 01 10 Portable viscometer VP 1000 Series 3 Setting up the viscometer 3 1 Reception and unpacking of the instrument Follow these steps after receiving the instrument Please check carefully the packaging box of the viscometer before removing it in order to find out transportation damages Should the packaging box be broken or have suffered any other damage please contact the shipping agency before opening it Once you have taken the instrument out of the box check if damages can be observed Should this be the case please inform the dealer that has delivered you the equipment Remove all packing straps protectors and accessories used during transport Recyclable materials are to be disposed in the containers provided therefore 3 2 Scope of delivered parts a Portable rotational viscometer of the VP 1000 series Standard spindle set R2 R7 Spindle protector Setup tool 4 alkaline additional batteries AA LR6 6V
9. Stand 1 02 01 10 Page 5 Portable viscometer VP 1000 Series 3 3 Setup Portable viscometers of the VP 1000 Series are battery operated The basic delivery scope comprises 4 alkaline batteries 4xAA LR6 6V installed in the unit and 4 additional batteries for replacement The unit can work both with alkaline batteries from type AA LR6 and with rechargeable ones from type AA R6 In continuous operation batteries have a lifespan of 24 to 30 hours Battery level is indicated on the display by means of a symbol VP 1060 v1 02 Batteries are positioned on the lower side of the viscometer fig 3 To replace them proceed as follows a fixing screw Remove the screw as indicated in the illustration Remove the cover plate of the battery housing and replace the batteries Please pay attention to the correct polarity when doing this operation To replace the cover in its original place insert first the cover tongue and tighten the screw again On the cover plate there is a label with the most relevant features of the viscometer Page 6 Stand 1 02 01 10 Portable viscometer VP 1000 Series 3 4 Setting up the spindle rae 1 Stand 1 02 01 10 Apart from R7 all spindles included in the standard set are disc spindles Because of this shape spindles must be smoothly immersed into the fluid to avoid bubble formation below the surface To assemble the spindle hold firmly
10. art another measurement proceed as described before Stand 1 02 01 10 Page 11 Turn off the viscometer Portable viscometer VP 1000 Series Press the ENTER key for an extended time to turn off the viscometer By doing this following information appears on the display Power Off Shutting Down Don t forget to switch off the instrument by pressing for a few seconds the ENTER button when you have finished the measurements Otherwise the viscometer will remain active and batteries will run out 5 About viscometer s calibration The instrument delivered has been calibrated with standard calibration Newtonian oils by the manufacturer before shipping We recommend carrying out calibrations on a regular basis according to operation frequency For the correct calibration of the viscometer please contact your local dealer 5 1 Viscometer s verification Page 12 We recomend to check the proper functionallity of the viscometer on a regular basis using Newtonian viscosity standards According to the model the standards suggested are as follows Viscometer model viscosity standard mPas VP 1020 approx 5 000 VP 1030 approx 5 000 VP 1050 approx 2 500 VP 1060 approx 2 500 When carrying out the verification the value on the display should correspond with the one indicated in the certification of the standard oil considering also the allowances viscometer s ac
11. curacy standard accuracy involved Due to the great influence that temperature has on viscosity measurements we strongly recommend to perform the viscometer s verification test with the oil at the temperature specified in the oil certification Stand 1 02 01 10 Portable viscometer VP 1000 Series 5 2 How to perform the auto zeroing function If after turning on the viscometer and initiating the rotation of the spindle without immersing it in a fluid the reading on the display does not indicate zero you should proceed as follows Turn on the viscometer by pressing for a few seconds the ENTER button You will enter the introductory display where a symbol indicates the battery level Press now the down arrow and ENTER consecutively in order to access to the Auto zero option After this following information appears on the display Options AutoZERO Press ENTER to enter the following screen Remove Spindle Press lt ENTER gt out without spindle It s also strongly advisable to fulfill this operation with the viscometer placed on the stand and not holding it with one hand Should this not be possible the viscometer has to be held in upright position see details in page 11 of this manual Don t forget that the Auto zeroing option must be carried Press ENTER to start the Auto zero process which will allow you to modify the zero value During this process following message app
12. e spindle The viscometer has been calibrated to deliver readings in mPas according to speed and spindle type used The combination of the different spindle types allows to obtain optimal readings within the scale of each model of the portable viscometer series VP 1020 VP1030 VP1050 and VP1060 Viscosity is a distinctive property of the fluids It is the measure of internal friction of a fluid when a layer of this fluid is forced to move in relation to another layer Viscosity is a value highly dependant on temperature The standard units for dynamic viscosity measurements are mPa s S I or cP C G S 1mPas 1cP centi Poise 1 dPas 100 mPas 1dPas 1P poise It is the ideal movement between layers without transfer of mass from one to the other It is the base to calculate dynamic viscosity There is a certain speed from which a transfer of mass between layers occurs Result is an apparently greater shear stress and an erroneously high viscosity reading Turbulent flow is characterized by a sudden and notorious increase in viscosity above a certain speed Viscosity in Newtonian fluids at a given temperature remain constant regardless of viscometer model spindle and speed being used The most common Newtonian fluids are water and thin motor oils Stand 1 02 01 10 Non Newtonian fluids Pseudoplastic Plastic Dilatant Time dependent fluids Thixotropic Rheopeptic Stand 1 02 01 10 Portable viscometer VP
13. ears on the display AutoZERO wait When the process has successfully finished the display will automatically change to the main information and to the measurement mode 6 Accessories optional Battery charger R6 AA Ni Cd Ni Mh Rechargeable batteries Stand Special spindle R1 Spindle rack Newtonian certified calibration oils 600 ml Stand 1 02 01 10 Page 13 Portable viscometer VP 1000 Series 7 About viscosity 7 1 Description 7 2 Related concepts Viscosity Laminar flow Turbulent flow Newtonian fluids Page 14 Myr viscometers of the VP 1000 Series are rotational and portable viscometers that determine the viscosity of a wide range of fluids The measurements are performed according to the Brookfield method the results obtained with the VP 1000 Series can therefore be perfectly compared to those gained with other equipment working also with the Brookfield method The principle applied by this viscometer is equivalent to that of the rotational viscometers a disc or cylindrical spindle immersed in the sample to analyze measures the torque required to rotate in the fluid The torque value specified by the viscometer is based on the rotational speed and on the spindle geometry this method allows to obtain a direct viscosity value in mPas Depending on the viscosity the resistance exerted by a fluid opposing the motion of a spindle varies proportionally to the speed or size of th
14. ed shearthickening flow behaviour Examples solutions of sugar and water and mixtures of sand and water Viscosity of dilatant fluids increases when shear rate increases It is also called shearthickening flow behaviour Those fluids in which viscosity and shear stress decrease maintaining a constant shear rate with time Ketchup honey anti drop paints mayonnaise Those fluids in which viscosity and shear stress increase maintaining a constant shear rate with time Lubricants and some paints types are rheopeptic fluids Page 15 Reference substances and viscosities Page 16 Portable viscometer VP 1000 Series Substance Approx viscosity mPas Motor oil SAE 10 65 Olive oil 84 Coatings airbrushed 100 Yogourt 150 Sugar solution 70 400 Lubricating oil 50 1 000 Concentrated juice 1 500 Inks 550 2 200 Honey 10 000 Nanocellulose common 8 000 10 000 additive Toothpaste 100 000 Stand 1 02 01 10 8 Viscosity table spindle VP1020 R1 optional viscosity in mPas Portable viscometer VP 1000 Series 200 000 VP1030 133 000 VP1050 80 000 VP1060 66 600 Viscosity ranges with standar spindles between 10 100 of full scale Model VP1020 200 200 000 mPas Model VP1030 130 133 300 mPas Model VP1050 80 Model VP1060 66 80 000 mPas 66 600 mPas Stand 1 02 01 10 Pa
15. eewgessaenndsoseesessuseseewies seecssscsues 14 8 VISCOSITY Cable ices cise cidsccsaseeisdecudeccsaccccndsesenstecsswncdennes seeuncmeuseeesnetouneneves 17 9 Problems and solutions sssssssesssessssssssssooooesssoosssssesssssessssssssooooeossoo 18 Stand 1 02 01 10 Portable viscometer VP 1000 Series 1 General information 1 1 Introduction 1 2 Intended use The VP 1000 Series of the MYR Group is a portable viscometer for the quick and flexible measurement of fluid viscosities The ergonomic design of the viscometer and the stability of the optional stand allow the VP 1000 to be used both as portable or as lab viscometer Viscometers of the VP 1000 Series are battery operated and work at a fixed speed 20 30 50 or 60 rpm The low consumption of the unit makes it possible to work continuously for more than 24 hours without need to recharge or change the batteries Speed selection must be set when ordering the viscometer according to the measurement range required by end user Viscosity readings are delivered only in one unit milli Pascal seconds mPas To achieve the whole measurement range the viscometer is delivered with a set of different R spindles R2 R7 and optionally R1 The most outstanding feature of the portable viscometers of the VP 1000 Series is their user friendliness This characteristic makes them an ideal tool to carry out measurements in the own premises during the manufacturing process
16. ge 17 Portable viscometer VP 1000 Series 9 Problems and solutions Problem Solution The viscometer does not work e Check the battery level The instrument does no read zero without e Carry out the Autozero function fluids Viscosity speed is unstable and inaccurate e Check if you hold firmly the viscometer e Check if the spindle disk rotates steadily e Check if the sample temperature is stable e Check the rheological features of the sample that must be analized Page 18 Stand 1 02 01 10
17. mponent Battery replacement must be carried out after switching off the unit and removing the spindle from the shaft The instrument must not be operated in the presence of flammable gases It is also forbidden to expose the instrument in environments where dangerous gas concentrations may occur Stand 1 02 01 10 Portable viscometer VP 1000 Series Hazard of To avoid damages on the instrument it must be only operated in a malfunction controlled electromagnetic environment According to this transmitters such as mobile phones must not be operated near to it In case of malfunctions and or service work please turn off the instrument and contact your local dealer 1 5 Certification warranty and documentation Certification Viscotech Hispania S L certifies that this instrument has been tested and checked carefully Its technical data has been verified before shipment to be in accordance with the published specifications The instrument complies with applicable international safety regulations Warranty This MYR product is warranted against defects in material and workmanship for a period of 2 two years Parts which prove to be defective during the warranty period will be repaired or replaced free of charge No other warranty is expressed or implied Unauthorized modification or repair by third party persons will void the warranty The warranty will expire in case of improper or wrong use of the instrument and in case the warning and
18. orrect type appears on the display press ENTER to validate After that the main display appears again with the new modification introduced If by any reason you omit to press ENTER during 15 seconds when modifying the spindle the viscometer returns automatically to the main display and will accept the last spindle selected It is therefore very important to check that the spindle that has been set up in the viscometer matches with the one that is being showed on the display 4 2 Measurement Measurement start To start the spindle rotation and trigger the measurement press simply ENTER The spindle beginns to rotate and the display delivers following data speed 20 30 50 or 60 rpm spindle reference viscosity readings in mPas and full scale percentage During measurement especially if carried out without stand viscometer should be hold firmly and in upright position check that bottom metal sheet of viscometer is parallel to the working surface to avoid erroneous measurements Out of reading s range If following display appears during the measurement process you have exceeded the maximum reading s limit overrange In this case change the spindle and insert a different one having a lower reference Finish of To finish the measurement process measurement press ENTER again to stop the drive The measurement result along with the full scale percentage will remain on the display To st
19. s VP 1060 v1 02 Shortly afterwards you can view the main display with the configuration that was last used with the viscometer Rpm STOP R7 g mPas 0 0 0 The display includes the following information speed rpm measurement unit mPas spindle type R1 R7 and full scale range As mentioned in chapter 1 the viscometer works always at one speed rpm 20 30 50 or 60 rpm that can be selected when ordering the unit and one unique measurement unit milli Pascal seconds mPas The only parameter that can be modified is the spindle Should you carry out measurements with a different spindle as the one that appears on the display follow these steps to modify the information Press shortly any one of the arrows 4 or Y In doing so the display will show following information Spindle E R7 6666mPas The spindle reference last used flashes on the display At the right side you can see the full scale range corresponding to the selecetd combination of speed and spindle Stand 1 02 01 10 Portable viscometer VP 1000 Series The full scale range refers to the maximum viscosity reading K J that the viscometer can achieve with selected combination of speed and spindle This value helps the user to select the correct spindle according to the viscosity of the sample that must be analyzed Use the arrows 4 or V to set the correct spindle type between R1 and R7 When the c
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21. y strictly observe instructions provided CAUTION Wherever this symbol along with the message CAUTION appears in this manual it indicates that damages on the viscometer may occur if instructions are not observed For the proper operation of the equipment instructions must be strictly observed INFORMATION This symbol refers to specific details of the viscometer which must be specially considered because of their relevance Apart from the instructions contained in this manual everyone who operates the portable viscometer of the VP 1000 series is obliged to know and observe the security and hygienic measures of the laboratory where this device is operated Everyone who should operate and set up the viscometer must have completely read and understood these instructions before starting the operations Operator security may be at risk if instructions of this manual are not observed Please observe the following general precautions during operation of this instrument Failure to comply with these precautions violates safety standards and the intended use of the instrument Viscotech Hispania S L is not liable for misuse of the instrument and failure to comply with basic safety requirements The viscometer works with batteries It is strictly forbidden to remove the instrument hood during operation Component changes and settings must only be fulfilled by specialized personnel Use only original spare parts when changing any co
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