BROOKFIELD DV-I PRIME Digital Viscometer Operating Instructions Manual No.
TABLE OF CONTENTS I. INTRODUCTION................................................................................................... 5 I.1 I.2 I.3 I.4 I.5 I.6 I.7 I.8 Components..................................................................................................................................................6 Utilities.............................................................................................................................................................
Appendix A - Cone/Plate Viscometer Set-Up ......................................................................... 42 Appendix B - Viscosity Ranges..................................................................................................... 47 Appendix C - Variables in Viscosity Measurement................................................................ 51 Appendix D - Spindle and Model Codes..................................................................................
I. INTRODUCTION The Brookfield DV-I PRIME Viscometer measures fluid viscosity at given shear rate. Viscosity is a measure of a fluid’s resistance to flow. You will find a detailed description of the science of viscosity in the Brookfield publication “More Solutions to Sticky Problems”, a copy of which was included with your DV-I PRIME. The principle of operation of the DV-I PRIME is to drive a spindle (which is immersed in the test fluid) through a calibrated spring.
The equivalent units of measurement in the SI system are calculated using the following conversions: SI CGS Viscosity: 1 mPa•s = 1 cP 1 Newton-m = 107 dyne-cm Torque: References to viscosity throughout this manual are done in CGS units. The DV-I PRIME Viscometer provides equivalent information in SI units. I.
I.2 Utilities Input Voltage: Input Frequency: Power Consumption: Power Cord Color Code: Hot (live) Neutral Ground (earth) Brookfield Engineering Laboratories, Inc. 115 VAC or 230 VAC 50/60 Hz 22 WATTS United States United States Black White Green Page 7 Outside States OutsideUnited United States Brown Blue Green/Yellow Manual No.
I.3 Components and Dimensions DV-I Prime Viscometer Model G Laboratory Stand Spindle Set Shipping Cap LV Guard Leg Temperature Probe Option Cone/Plate Option • For use with SSA or C/P: Wrench Temperature Cable SC4-61Y • For use in beaker: Temperature Probe Clip Cone Spindle Sample Cup Temperature Probe Figure I-1 Brookfield Engineering Laboratories, Inc. Page 8 Manual No.
Figure I-2 Brookfield Engineering Laboratories, Inc. Page 9 Manual No.
I.4 Specifications Speeds: (rpm) Weight: 0.0, 0.3, 0.6, 1.5, 3, 6, 12, 30, 60, 0.5, 1, 2, 2.5, 4, 5, 10, 20, 50, 100 Gross Weight Net Weight Carton Volume Operating Environment: 20 lb 17 lb 1.65 cu ft 9 kg 7.7 kg 0.05 m3 0°C to 40°C Temperature Range (32°F to 104°F) 20% - 80% R.H.: non-condensing atmosphere Analog Torque Output: 0 - 1 Volt DC (0 - 100% Torque) Viscosity Accuracy: ±1% Full Scale Range in Use (See Appendix D for range calculation) Viscosity Repeatability: 0.
I.5 Setup 1. To assemble the Model S Laboratory Stand, place the upright rod into the base (refer to assembly instructions in Appendix H). The rack gear and clamp assembly should face the front of the base. The upright rod is held in place with a screw, which is attached from the bottom of the base. Tighten this screw with a screwdriver. 2. Be sure that the clamp screw, VS-41Y, is loose. Insert the mounting rod on the back of the DV-I PRIME Viscometer into the hole on the clamp assembly. 3.
I.7 Key Functions Figure I-3 shows the control keys on the face of the DV-I PRIME Viscometer. The following describes each key’s function. UP ARROW This key is used to scroll UP (in an increasing value direction) through the available speed or spindle tables. DOWN ARROW This key is used to scroll DOWN (in a decreasing value direction) through the available speed or spindle tables. Tp Note: Pressing and holding the DOWN ARROW key during the POWER ON will change the temperature display between °C and °F.
I.8 Preventative Maintenance and Cleaning Make sure the instrument is in a decent working environment (dust-free, moderate temperature, low humidity, etc.) Make sure the instrument is on a level surface. Hands/fingers must be clean and free of residual sample. Not doing so may result in deposit build up on the upper part of the shaft and cause interference between the shaft and the pivot cup. Be sure to remove spindle from the instrument prior to cleaning. Note left-hand thread.
II. GETTING STARTED II.1 Auto Zero Before readings may be taken, the Viscometer must be Autozeroed. This action is performed each time the power switch is turned on. The display window on the Viscometer will guide you through the procedure as follows: NOTE: Check instrument level before proceeding - see Section I.5. Turn the power switch (located on the rear panel) to the ON position.
After approximately 15 seconds, the flashing stops and the following screen appears: REPLACE SPINDLE PRESS ANY KEY Figure II-5 Pressing a key at this point results in the display of the DV-I PRIME default screen: Calculated Viscosity Speed cP 0.0 OFFRPM S01 % 0.0 Spindle Selected % Torque (without Temperature Probe) Figure II-6a Tp cP 0.0 OFFRPM 70.1°F % 0.0 Temperature (with Temperature Probe) Figure II-6b The display will vary slightly depending upon the status of the last spindle entry. II.
S is blinking) the two character spindle value to the right of the S character will begin to change (in either an increasing or decreasing direction depending upon which ARROW key is pressed) for each press of the key. If the ARROW key is pressed and held, the display will scroll through the spindle codes for as long as the ARROW key is depressed.
II.3 Speed Selection & Setting Table II-1 shows the available speed selections. DV-I PRIME SPEEDS SETS Beginning 0.0 0.3 When scrolling 0.6 “UP” 1.5 3.0 6.0 12 30 60 0.0 0.5 1.0 2.0 2.5 4.0 5.0 10 20 50 100 Table II-1 NOTE: DV-I PRIME speeds are organized to conform to the historical speed sets available on the Brookfield Dial Reading viscometer. Speeds from 0.3-60 RPM are traditionally found on the LVT viscometer. Speeds from 0.5-100 RPM are traditionally found on RVT, HAT, and HBT viscometers.
If the ARROW key is pressed just once and then released, the characters RPM will blink for three seconds, then will cease blinking resulting in no change to the speed entry. NOTE: The speed selection process remembers the last value of scrolled-to speed so that the next time you initiate a speed change (by pressing an ARROW key), the DV-I PRIME will begin its scroll display from the last entered value.
NOTE: If the motor is off or the RPM is 0.0, the maximum viscosity displayed will be 0.0 cP (or 0.0 mPa.s). II.5 CGS or SI Units Selection Pressing and holding the AUTO RANGE key during power on will enable the viscosity display to be read in either CGS or SI units. To change the unit format: 1. Turn the power off. 2. Press and hold the AUTO RANGE key and turn the power ON. The DV-I PRIME will retain the unit selection when the viscometer is turned OFF. Viscosity CGS cP SI mPa•s II.
cP 78.0 10 RPM20 S01 % 7.8 Figure II-14 Negative % (Torque) will be displayed as shown in Figure II-15: cP ---10 RPM20 S01 % -0.2 Figure II-15 Viscosity values will be displayed as “- - - -” when the % (Torque) is below zero. II.8 Operation The following procedure is outlined for making a viscosity measurement in a 600 mL low form Griffin beaker. 1. Mount the guardleg on the DV-I PRIME Viscometer (LV and RV series). Attach the spindle to the lower shaft.
II.9 Timed Modes for Viscosity Measurement The Timed Modes allow the viscometer user to implement Timed Stop and Time to Torque capabilities with the DV-I PRIME Viscometer. This feature will allow the user to set up the viscometer (i.e. select spindle and speed) and then record readings for a fixed period of time (Timed Stop) or until a set torque value is attained (Time to Torque).
Using the UP and DOWN ARROW keys, the user enters a value for the minutes portion of the time to stop. This value can be as high as 99 minutes. 2. When satisfied, the user presses the ENTER key again to enter the seconds setting display: TIMED STOP SET SEC’S:00 Figure II-18 Using the UP and DOWN ARROW keys, the user enters a value for the seconds portion of the time to stop. This value will be between 0 and 59 seconds.
%=76.4 RPM=100 TIMED STOP DONE Figure II-22 The display will switch between that of Figures II-21 and II-22 for each press of either the UP or DOWN ARROW key. The test can be repeated by pressing the motor ON/OFF key. Pressing any key except the UP or DOWN ARROW keys or motor ON/OFF will cause the viscometer to exit the Timed Stop mode and resume normal operation.
TORQUE = 24.2% MIN: 15 SEC:13 Figure II-25 NOTE: When this mode has begun, a press of the MOTOR ON/OFF key will interrupt the time to torque operation and return the user to normal operation. The seconds display will increment from zero (0) to 59 in one (1) second intervals and the current value of the viscometer torque will be updated continuously. When seconds reach 59, the minutes value will increment by one (1) minute.
NOTE: For the Time to Torque method, the DV-I PRIME Viscometer will retain the last entered torque in MEMORY for use when the user elects to perform a time to torque test again. Tp II.9.4 Temperature Offset When the optional temperature probe is available with the DV-I PRIME, it is sometimes useful to be able to adjust the temperature readout to agree with an external temperature device. This can be accomplished utilizing the Temp Offset mode. 1.
When Temp Offset is enabled the temperature units display will be underlined. Cp 0.0 0.0 RPM 70.1°F % 0.0 Figure II-33 NOTE: Temp. offset remains active when unit is powered down and powered up again. II.10 Print Modes NOTE: The print key is inactive when the motor is off. The printer must be attached to the appropriate rear panel output connector. See Appendix G. 1.
PRINT INTERVAL SET MIN’S: 00 Figure II-35 3. Use up and down arrows to enter desired minutes for print interval (00 to 99). 4. Press enter to accept minute value and advance to set sec (00 to 59). PRINT INTERVAL SET SEC’S: 00 Figure II-36 5. Press enter and the instrument will start to print at the interval, which has been set. The instrument display will show a flashing P in front of the % sign when operating in continuous print mode. CP123.4 S01 10RPM P% 19.7 Figure II-37 6.
• Brookfield’s DV Loader software (for setting up test programs) is integrated into WINGATHER. DV Loader is an easy-to-use, structured command language, which makes detailed viscosity tests simple to program (see Section V). • Easy-to-use data gather modes including automatic follow up events (save data, analyze data, print data). • Manual scaling of plot axes.
Figure II-39: Gather Screen Figure II-40: DV Loader Screen Brookfield Engineering Laboratories, Inc. Page 29 Manual No.
Figure II-41: Run/Data Screen Figure II-42: Analysis Screen Brookfield Engineering Laboratories, Inc. Page 30 Manual No.
II.12 Math Models Math models provide parameters that indicate how materials will behave in various circumstances where shear stress and shear rate vary. The data and calculated model parameters can be used to help QC and R&D characterize how a product will behave for the customer and how it will behave during processing. When selecting a math model, it is important to take into consideration the parameters that need to be measured, as well as, the confidence of fit (CoF). A CoF above 98 is recommended.
When n < 1 the product is shear-thinning or Pseudoplastic. This means the apparent viscosity decreases as shear rate increases. The closer n is to 0, the more shear thinning the material is. When n > 1 the product is shear-thickening or Dilatant. Their apparent viscosity increases as shear rate increases. When should you use it? This model should be used with non-Newtonian, time-independent fluids that do not have a yield stress. These fluids will begin to flow under any amount of shear stress.
When n > 1 the product is shear-thickening or Dilatant. It’s apparent viscosity increases as shear rate increases. Figure II-44 When should you use it? The Herschel-Bulkley model should be used with non-Newtonian, time-dependent materials that have a yield stress. Products with a yield stress only begin to flow after a certain amount of shear stress is applied. As a result, the flow curve intersects the y-axis at a point greater than 0.
II.12.3 The Bingham Model t = t o + hD ( t = shear stress, t o = yield stress, h = plastic viscosity, and D = shear rate) € € What does it tell you? The € Bingham model € indicates a product’s yield stress, t o , which is the amount of shear stress required to initiate flow. It also provides the plastic viscosity, h, which is the viscosity after a product yields.
II.12.4 The Casson Model t = t o + hD € ( t = shear stress, t o = yield stress, h = plastic viscosity, and D = shear rate) What does it tell you? € € parameters similar to that of the Bingham model. However, unlike The Casson model provides the Bingham model, it was developed for materials that exhibit non-Newtonian flow after yielding.
An Example of the Casson Model at Work Before releasing a new over the counter gel, a Pharmaceutical Gel pharmaceutical company needs to learn how it will behave which it is being used by the Plastic Viscosity (h) = 329.8 cP end consumer. They perform a full viscosity Yield Stress ( t o ) = 325.8 dynes/cm2 profile and apply the Casson model. From the results, shown in Figure II-46, they learn that their ointment has a higher yield stress, t o , and lower plastic viscosity, h, than they originally intended.
II.12.5 Other Common Rheological Models The NCA/CMA Casson Model (1 + a) t = 2 t o + (1 + a) hg ( t = shear stress, t o = yield stress, h = plastic viscosity, and = shear rate) The NCA/CMA Casson model is designed by the National Confectioners Association and the Chocolate Manufacturers € Association as the standard rheological model for the industry.
This model is a variation of the Power Law Model. Unlike the Power Law Model, which relates apparent viscosity to shear rate, the IPC Paste Model relates apparent viscosity to the testing speed (rpm). Figure II-48 Figure II-49 Brookfield Engineering Laboratories, Inc. Page 38 Manual No.
III. MAKING VISCOSITY MEASUREMENTS III.1 Quick Start Viscosity Measurement The DV-I PRIME Viscometer uses the same methodology for viscosity measurement as the Brookfield Dial Reading Viscometer and DV series of Digital Viscometers. If you have experience with other Brookfield equipment, this section will give you the quick steps for taking a viscosity reading. If you have not used a Brookfield Viscometer before, skip this section and go to Section III.2 for a detailed description.
When comparing data with others, be sure to specify the sample container and presence/absence of the guardleg. Many samples must be controlled to a specific temperature for viscosity measurement. When conditioning a sample for temperature, be sure to temperature control the container and spindle as well as the sample. Please see our publication, “More Solutions to Sticky Problems”, for more details relating to sample preparation. III.
increases. This behavior cannot be detected or evaluated with the single point measurement. Non-Newtonian flow is analyzed through the collection of viscosity data over a range of shear rates and the generation of a graph of viscosity versus shear rate (a rheogram). This information will allow for a more complete characterization of a fluid and may help in formulating and production of the product. The DV-I PRIME is capable of collecting multiple data points for comprehensive analysis of flow behavior.
Appendix A - Cone/Plate Viscometer Set-Up This Cone/Plate version of the DV-I PRIME uses the same operating instruction procedures as described in this manual. However, the “gap” between the cone and the plate must be verified/ adjusted before measurements are made. This is done by moving the plate (built into the sample cup) up towards the cone until the pin in the center of the cone touches the surface of the plate, and then by separating (lowering) the plate 0.0005 inch (0.013mm).
A.2 Setup 1. Be sure that the Viscometer is securely mounted to the Laboratory Stand, leveled and zeroed with no cone or cup attached and 0% torque is displayed. 2. Figure A-2 shows a typical water bath setup. Connect the sample cup inlet/outlet ports to the water bath inlet and outlet and set the bath to the desired test temperature. Allow sufficient time for the bath to reach the test temperature. The temperature range of the Sample Cup (CPE-44Y or CPE-44PY) is 0-100°C.
A.3 Setting the Gap 1. Move the toggle switch to the right; this will turn on (enable) the Gap Setting Feature. The Pilot (red) light will be illuminated. 2. If the contact light (yellow) is illuminated, turn the micrometer adjustment ring clockwise (as you look down on the instrument) until the light is just breaking contact, i.e., flickering (see Figure A-5). 3.
A.4 Making Measurements with Cone/Plate Geometry Viscosity measurements are made on the DV-I PRIME C/P viscometer in the same way as the DV-I PRIME viscometer with several exceptions. 1. Prepare the viscometer as is described in Section III.2. 2. Brookfield recommends that you always make cone/plate measurements with temperature control. Be sure that the sample cup is connected to a circulating waterbath and that it is at the target temperature.
A.5 Verifying Calibration 1. Determine the appropriate sample volume. Refer to Table A-1 to determine the correct sample volume required for the spindle to be utilized. 2. Select a Brookfield Viscosity Standard fluid that will give viscosity readings between 10% and 100% of Full Scale Range. Refer to Appendix B for viscosity ranges of cone spindles; ranges listed apply to CPE cones. Do not use a silicone viscosity standard fluid with a viscosity value greater than 5000 cP with a Cone/Plate.
Appendix B - Viscosity Ranges LV (#1-4) and RV,HA,HB (#1-7) Viscometers Viscosity Range (cP) Viscometer Minimum LVDV-1 PRIME 15 2,000,000 RVDV-I PRIME 100* 13,300,000 HADV-I PRIME 200* 26,600,000 HBDV-I PRIME 800* 106,400,000 Maximum *Minimum viscosity is achieved with optional RV/HA/HB-1 spindle. (Spindle Code 01) Vane Spindles Spindle Torque Range Pa Shear Stress Range dyne/cm2 Viscosity Range cP (mPa•s) @ 10 rpm V-71 LV V-72 V-73 V-74 V-75 LV LV LV LV .188-1.88 .938-9.38 9.
Small Sample Adapter and Thermosel SSA and Thermosel Spindle SSA and Thermosel Spindle Viscosity Range (cP) Shear Rate sec-1 LVDV-1 PRIME SC4-16 120 - 400,000 .29N SV4-18 3 - 10,000 1.32N SC4-25 480 - 1,600,000 .22N SC4-31 30 - 100,000 .34N SC4-34 60 - 200,000 .28N SC4-81 3 - 10,000 1.29N SC4-82 3 - 10,000 1.29N SC4-83 11 - 38,000 1.
DIN Adapter Accessory Viscosity (cP) DAA Spindle LVDV-I PRIME RVDV-I PRIME HADV-I PRIME HBDV- PRIME 24 - 98 - 85 2 - 4,000 12 - 86 4 - 3,800 37 - 10,000 73 - 10,000 11 - 38,000 121 - 50,000 243 - 50,000 87 5,000 5,000 Shear Rate sec-1 5,000 1.29N 292 -10,000 1.29N 970 - 50,000 1.29N Spiral Adapter Spiral Spindle SA-70 Viscosity (cP) LVDV-I PRIME RVDV-I PRIME 1,000 - 1,050,000 98 98,500 HADV-I PRIME HBDV-I PRIME 2,100 - 2,100,000 8,400 - 8,400,000 Shear Rate sec-1 .
When taking viscosity measurements with the DV-I PRIME Viscometer, there are two considerations, which pertain to the low viscosity limit of effective measurement. 1. Viscosity measurements should be taken within the equivalent % Torque Range from 10% to 100% for any combination of spindle/speed rotation. 2. Viscosity measurements should be taken under laminar flow conditions, not under turbulent flow conditions. The first consideration has to do with the accuracy of the instrument.
Appendix C - Variables in Viscosity Measurement As with any instrument measurement, there are variables that can affect a viscometer measurement. These variables may be related to the instrument (viscometer), or the test fluid. Variables related to the test fluid deal with the rheological properties of the fluid, while instrument variables would include the viscometer design and the spindle geometry system utilized.
Viscometer Related Variables Most fluid viscosities are found to be non-Newtonian. They are dependent on Shear Rate and the spindle geometry conditions. The specifications of the viscometer spindle and chamber geometry will affect the viscosity readings. If one reading is taken at 2.5 rpm, and a second at 50 rpm, the two viscosity values produced will be different because the readings were made at different shear rates. The faster the spindle speed, the higher the shear rate.
Appendix D - Spindle and Model Codes Each spindle has a two-digit code, which is scrolled to via the keypad on the DV-I PRIME. The spindle code directs the DV-I PRIME to calculate viscosity for the spindle that is being used. The spindle multiplier constant (SMC) is used to calculate Full Scale Viscosity Range for any spindle/speed combination (refer to Appendix E). Spindle codes are listed in Table D-1.
Table D-2 lists the model codes and spring torque constants for each viscometer model. VISCOMETER MODEL TORQUE CONSTANT TK MODEL CODE ON DV-I PRIME SCREEN LVDV-I PRIME 0.09373 LV 2.5xLVDV-I PRIME 0.2343 2.5LV 5xLVDV-I PRIME 0.4686 5LV 1/4 RVDV-I PRIME 0.25 1/4RV 1/2 RVDV-I PRIME 0.5 1/2RV RVDV-I PRIME 1 RV HADV-I PRIME 2 HA 2xHADV-I PRIME 4 2HA 2.5xHADV-I PRIME 5 2.5HA HBDV-I PRIME 8 HB 2xHBDV-I PRIME 16 2HB 2.5xHBDV-I PRIME 20 2.
Appendix E - Calibration Check Procedures For more help go to www.brookfieldengineering.com and download the video. Brookfield’s accuracy statement for viscometers used with standard spindles is +/-1% of Full Scale Range. When measuring viscosity with a specific spindle rotating at a defined speed, the maximum viscosity that can be measured is defined as Full Scale Range. For digital viscometers this value is easily determined by pressing the “AUTORANGE” key.
MINERAL OIL VISCOSITY STANDARD FLUIDS BEL Part No. Viscosity (cP) 25ºC B29 29 B200 200 B600 600 B1060 1,060 B2000 2,000 B10200 10,200 B21000 21,000 B730000 73,000 B200000 200,000 B360000 360,000 Table E-2 Brookfield Viscosity Standard Fluid - General Information We recommend that Brookfield Viscosity Standard Fluids be replaced on an annual basis, one year from date of initial use. These fluids are either pure silicone or mineral oil and are not subject to change over time.
Follow theses steps using one of the recommended spindles to verify calibration of your instrument. 1) Place the viscosity standard fluid (in the proper container) into the water bath. 2) Lower the DV-I PRIME into measurement position (with guard leg if LV or RV series viscometer is used). 3) Attach the spindle to the viscometer. If you are using a disk shaped spindle, avoid trapping air bubbles beneath the disk by first immersing the spindle at an angle, and then connecting it to the viscometer.
Calibration Check Procedure for a Thermosel System A two-step process is recommended for the Thermosel. 1) Evaluate the calibration of the Viscometer alone according to the procedure outlined in the beginning of this section, entitled Calibration Procedure for LV (#1-3) and RV, HA, HB (#1-6) Brookfield spindles. 2) Evaluate the Viscometer with the Thermosel according to the procedure described below. When a Thermosel System is used, the controller stabilizes the Thermo Container at the test temperature.
Calibration Check Procedures for DIN Adapter When a DIN UL Adapter is used, the water bath is stabilized at the proper temperature: 1) Put the proper amount of viscosity standard fluid into the UL Tube. (Refer to the UL Adapter instruction manual). 2) Attach the spindle (with extension link and coupling nut) onto the DV-I PRIME. 3) Attach the tube to the mounting channel.
Calibration Check Procedure for Cone/Plate Viscometers 1) Follow the procedures outlined in Appendix A for mechanically adjusting the setting of the cone to the plate. 2) Refer to Appendix A, Table A-1, and determine the correct sample volume required for the spindle to be utilized. 3) Select a viscosity standard fluid that will give viscosity readings between 10% and 100% of Full Scale Range. Refer to Appendix B for viscosity ranges of cone spindles.
Interpretation of Calibration Test Results: When verifying the calibration of the DV-I PRIME, the instrument and viscosity standard fluid error must be combined to calculate the total allowable error. The DV-I PRIME is accurate to (+/-) 1% of any Full Scale spindle/speed viscosity range. Brookfield Viscosity Standards Fluids are accurate to (+/-) 1% of their stated value.
Appendix F - The Brookfield Guardleg The guard leg was originally designed to protect the spindle during use. The first applications of the Brookfield Viscometer included hand held operation while measuring fluids in a 55-gallon drum. It is clear that under those conditions the potential for damage to the spindle was great. Original construction included a sleeve that protected the spindle from side impact.
repeatable value can be obtained without any special effort for any measurement circumstance. But, it should be known that this type of torque reading will not convert into a correct centipoise value when using a Brookfield factor if the boundary conditions are not those specified by Brookfield. The guard leg is a part of the calibration check of the Brookfield LV and RV series Viscometer/Rheometer. Our customers should be aware of its existence, its purpose and the effect that it may have on data.
Appendix G - Communications DV-I PRIME Serial and Analog Outputs No Connection No Connection 1 6 Analog Ground 2 7 3 Transmit Data (TxD) Cable Sense Serial Ground 8 4 9 5 Analog % Torque (Note 1) Analog Temperature (Note 2) Serial Ground Notes: 1. This is a 0-1 volt d.c. output where 0 volts corresponds to 0% torque and 1 volt corresponds to 100 % torque with a resolution of 1 millivolt (0.1%). 2. This is a 4.00 volt d.c. output where 0 volts corresponds to -100°C and 4.
Appendix H - Laboratory Stands with Parts Identification Release Lever: Push and hold here to move up and down. 1 2 3 3 4 4 5 5 6 6 Model Q Model S Item 1 2 3 4 5 6 Part Number VS-CRA-14S VSQA-001Y GV-1201 502028071S33B 50S311832S01B GV-1203 Description Rod and Clamp Assembly (Model S) Rod and Clamp Assembly (Model Q)† Base, Models S and Q (includes 2 VS-3 leveling screws) Flat washer 5/16 x 7/8 x .071” Screw, 5/16-18 x 1" lg. hex head Leveling Screws, Model S and Q Qty.
UNPACKING Check carefully to see that all the components are received with no concealed damage. 1 Base, VS-2, with 2 Leveling Screws, VS-3, packed in a cardboard carton 1 Upright Rod, VS-34, with attached Clamp Assembly, VS-55Y, Mounting Screw and 2 Lock washers ASSEMBLY 1. Remove the base assembly from the carton. 2. Remove the screw and washer from the upright rod. Place the rod and clamp assembly into the hole in the top of the base.
Appendix I - DVE-50A Probe Clip Probe Clip DVE-50A is supplied with the DV-I PRIME Optional Temperature Probe. It is used to attach the RTD temperature probe to the LV/RV Guard Leg or 600 mL low form Griffin beaker. Figure I-1 is a view of the Probe Clip, showing the hole into which the RTD probe is inserted, and the slot which fits onto the LV/RV guard leg. When inserting the RTD probe into the Probe Clip, the upper part of the Clip is compressed by squeezing the points shown in Figure I-1.
Appendix J - Fault Diagnosis and Troubleshooting Spindle Does Not Rotate ❏ ❏ ❏ ❏ Make sure the viscometer is plugged in. Check the voltage rating on your viscometer (115V, 220V): it must match wall voltage. Make sure the power switch is in the ON position. Verify rpm: make sure rotational speed (rpm) has been correctly selected. Spindle Wobbles When Rotating or Looks Bent ❏ Make sure the spindle is tightened securely to the viscometer coupling.
Appendix K - Online Help and Additional Resources www.brookfieldengineering.com** The Brookfield website is a good resource for additional information and self-help whenever you need it. Our website offers a selection of “how to” videos, application notes, conversion tables, instruction manuals, material safety data sheets, calibration templates and other technical resources. http://www.youtube.com/user/BrookfieldEng Brookfield has its own YouTube channel.
Appendix L- Warranty Repair and Service Warranty Brookfield Viscometers are guaranteed for one year from date of purchase against defects in materials and workmanship. They are certified against primary viscosity standards traceable to the National Institute of Standards and Technology (NIST). The Viscometer must be returned to Brookfield Engineering Laboratories, Inc. or the Brookfield dealer from whom it was purchased for no charge warranty service. Transportation is at the purchaser’s expense.
Appendix M - Viscosity Test Report Brookfield Engineering Laboratories, Inc. Page 71 Manual No.
