Ametek BROOKFIELD DVNext Operation Instructions Manual
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Ametek BROOKFIELD DVNext Operation Instructions Manual

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M19-2101 REVISION 2.0
D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L

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Summary of Contents for Ametek BROOKFIELD DVNext

  • Page 1 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...
  • Page 2 PROPRIETARY RIGHTS NOTICE This manual contains valuable information and material developed by AMETEK Brookfield for use with the DVNext Rheometer. No part of this manual can be reproduced or transmitted in any form or by any means, electronic, mechanical or otherwise. This includes photocopying and recording or in connection with any information storage or retrieval system without the express written permission of AMETEK Brookfield.

  • Page 3: Table Of Contents

    Table of Contents 1. INTRODUCTION ............................6 1.1 Components ...................................7 1.2 Utilities ..................................10 1.3 Specifications ................................10 1.4 Installation ..................................11 1.5 Safety symbols and precautions .........................12 1.6 Key functions ................................12 1.7 Cleaning ..................................14 2. GETTING STARTED ..........................15 2.1 Powering up .................................15 2.2 Digital leveling ................................15 2.2.1 AutoZero............................................
  • Page 4 3.9 Multiple data points ............................. 39 3.10 Selecting data collection ..........................39 3.11 End condition types ............................. 41 3.12 Additional test parameters ..........................42 3.13 Running a test ..............................44 3.14 Results ..................................46 4. MAKING YIELD MEASUREMENTS ................51 4.1 Quick start ................................. 51 4.2 Preparations for making measurements ......................
  • Page 5 APPENDIX E - SPINDLE ENTRY CODES AND RANGE COEFFICIENTS ......103 APPENDIX F - CALIBRATION PROCEDURES ................105 APPENDIX G - THE AMETEK BROOKFIELD GUARD LEG ............111 APPENDIX H - AUTOMATIC OSCILLATION CHECK ..............113 APPENDIX I - FTP SERVER CONNECTION SPECIFICATION ..........115 Part a: Hardware configuration ..........................

  • Page 6: Introduction

    The AMETEK Brookfield DVNext Rheometer measures fluid viscosity at given shear rates. Viscosity is a measure of a fluid’s resistance to flow. You will find a detailed description of the science of viscosity in the AMETEK Brookfield publication “More Solutions to Sticky Problems”.

  • Page 7: Components

    Please check to be sure that you have received all components, and that there is no damage. If you are missing any parts, please notify AMETEK Brookfield or your local authorized dealer. Any shipping damage must be reported to the carrier.
  • Page 8 For Cone/Plate versions: Threaded coupling: a spindle wrench (SP-23), one cone spindle (CPA-XXZ or CPA-XXCZ), a sample cup (CPA- 44YZ) replace the spindle set. Magnetic coupling: one cone spindle (CPM-XXZ or CPM-XXCZ) and a sample cup (CPA-44YZ) replace the spindle set. Power Cord varies RTD Temperature Probe...
  • Page 9 Component Diagram Figure 1-1 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 10: Utilities

    If you ordered the ball bearing suspension system with your new instrument, please note the following: • The ball bearing suspension in your AMETEK Brookfield instrument is noted on the serial tag on the back of the head by the letter “B” in the part number (the ninth digit; for example: XDVNTHBTBG0U00.

  • Page 11: Installation

    Users within the European Union: Please contact your dealer or the local authorities in charge of waste management on how to dispose of this product properly. All AMETEK Brookfield offices and our network of representatives and dealers can be found on our website: www.brookfieldengineering.com.

  • Page 12: Safety Symbols And Precautions

    Figure 1-2 1.5 Safety symbols and precautions Safety Symbols: The following explains safety symbols which may be found in this operating manual. Indicates hazardous voltages may be present. Refer to the manual for specific warning or caution information to avoid personal injury or damage to the instrument.
  • Page 13 The DVNext Rheometer utilizes a touch screen display and interface. The user will provide all input to the rheometer through the touch screen. Figure I-3 details the different types of information and actions available. Figure 1-3 The Status Bar provides information relating to the date and time (as configured by the user) Status Bar and various connections to the DVNext Rheometer.

  • Page 14: Cleaning

    1.7 Cleaning Make sure that the instrument is in a clean, dry 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 sample residue. 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.

  • Page 15: Getting Started

    The DVNext Rheometer will automatically transition from the About screen to the AutoZero screen. TIP: When contacting AMETEK Brookfield or your local authorized dealer for technical support or repair services, please record the information on the About screen and include this detail in your email.

  • Page 16: Autozero

    Figure 2-2 2.2.1 AutoZero The DVNext Rheometer must perform an AutoZero prior to making viscosity measurements. This process sets the zero reading for the measurement system. The AutoZero will be performed every time the instrument is turned on. Additionally, you may perform an AutoZero at any time through the Settings Menu (see Section V.1).

  • Page 17: Navigation

    USB B port. Communication is supported with AMETEK Brookfield RheocalcT software. Bath Icon: The DVNext Rheometer can communicate with a AMETEK Brookfield Thermosel (HT-106 Controller) or Temperature Bath (SD or AP Controllers) to control sample temperature. Temperature Probe Icon: The DVNext Rheometer can read the temperature probe sensor and shows the icon when the probe is plugged in.

  • Page 18: Home Screen

    Settings Menu Sort files according to alphabet Service Menu (only available for authorized Choose from additional options AMETEK Brookfield service centers) Lock Out (during a test) Back (return to previous screen) Remove Lock (during a test) Up (return to previous level in the file...

  • Page 19: Viscosity Wizard

    Water, Olive Oil, Shampoo, Honey, Molasses, and Non-Flowing (see Figure 2-6). If Non-Flowing is selected, the DVNext will display a prompt for the user to contact AMETEK Brookfield to discuss options for measuring the viscosity of non-flowing materials (see Figure 2-7). The second option is to input the approximate viscosity for the intended test sample (see Figure 2-8).
  • Page 20 Choose Spindle: There are two options for spindle selection. The first option is that the Wizard will recommend the spindle to use, which is shown by the blue arrow in the figure below (see Figure 2-9). The second option will allow a spindle to be selected by manually entering the spindle code as shown via the yellow arrow (see Figure 2-9).

  • Page 21: Configure Viscosity Test

    In some cases, the device may recommend switching to a different spindle (see Figure 2-13). If the Viscosity Wizard is not able to obtain torque measurements within 20-80%, the “Please Contact AMETEK Brookfield” screen will be displayed (see Figure 2-14).
  • Page 22 Run the current test. Test Parameter area includes many elements of the viscosity test as well as live measurements of Torque % and Temperature. Temperature data will only be displayed if a AMETEK Brookfield temperature probe is connected to the DVNext Rheometer.

  • Page 23: Configure Yield Test

    Temperature: A live signal from the rheometer when a temperature probe is attached (AMETEK Brookfield part number DVP-94Y or SC4-61Y). End Condition: Specify the condition that will end the test. Data- Collection: Specify the amount of data to be collected during a test.
  • Page 24 Figure 2-17 Figure 2-18 Clear: Clear all data that has been entered into the test parameters and restore the values to the factory default. Save: Save the current test. Run: Run the current test. M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 25: Load Test

    The test parameter area includes many elements of the yield test as well as live measurement of temperature. Temperature data will only be displayed if a AMETEK Brookfield temperature probe is connected to the DVNext Rheometer. Spindle: The currently selected spindle. All Yield and Stress calculations will be made based on the Spindle selection and the Immersion Mark.

  • Page 26: View Results

    The DVNext Rheometer can communicate to a Dymo Label Writer 450 Turbo label printer. This printer can be purchased from AMETEK Brookfield (Part No. GV-1046). The communication to the printer is by USB (cable provided with the printer). When the printer is connected to the DVNext, the printer icon will be visible in M19-2101 REVISION 2.0...
  • Page 27 There is no provision currently to have other drivers for other printers work with the DVNext. The DVNext Rheometer can configure the printout for several formats of paper/labels. These various paper/label stocks are available from AMETEK Brookfield. (see Figure 2-21) Label Type Part Number - Standard Part Number - Long Life (7 yr.)

  • Page 28: Making Viscosity Measurements

    If you have experience with other AMETEK Brookfield equipment, this section will give you quick steps for taking a viscosity reading. If you have not used a AMETEK Brookfield Rheometer before, skip this section and go to Section 4.2 for a detailed description.

  • Page 29: Programming

    3.3 Programming The DVNext Rheometer provides a powerful programming capability for data collection. The interface in Configure Viscosity Test allows for control of all instrument parameters including Spindle, Speed, Temperature (optional), End Condition, Data Collection, Instructions, Reports, Density, and QC Limits (described in the next sections of this chapter).

  • Page 30: Selecting A Spindle/Speed

    Three-step Test: Figure 3-2a:step 1 Figure 3-2a:step 2 Figure 3-2a:step 3 Two-step Test: Figure 3-3a:step 1 Figure 3-3a:step 2 3.4 Selecting a spindle/speed The DVNext has the capability of measuring viscosity over an extremely wide range. For example, the DVNext RV can measure fluids within the range of 100-40,000,000 cP.
  • Page 31 The process of selecting a spindle and speed for an unknown fluid is normally trial and error. An appropriate selection will result in measurements made between 10-100 on the instrument % torque scale. There are two general rules that will help in the trial and error process: •...

  • Page 32: Attaching A Spindle To The Magnetic Coupling

    3.5 Attaching a spindle to the magnetic coupling Align two opposing spindle slots (see Figure 3-6) with the two pins inside the coupling (see Figure 3-7). Figure 3-6 Figure 3-7 Carefully insert the spindle into the coupling so the slots are fully engaged with the pins. You should feel the pull of the magnet as the spindle seats in the coupling.

  • Page 33: Barcode Scanner

    Scan the ADD AN ENTER KEY (Carriage Return/Line Feed) Barcode on the SET DEFAULTS/ENTER KEY BARCODES page of the Barcode Scanner Manual (see Figure 3-12). Your Barcode Scanner is now ready for use with AMETEK Brookfield DVNext Viscometers and Accessories. Figure 3-12 3.7.1 Scanning non-cone/plate spindles with the barcode scanner (C &...
  • Page 34 Figure 3-13 On the Configure Viscosity Test screen, touch the Blue Arrow in the Spindle field (see Figure 3-14) to open Set Spindle (see Figure 3-15). Figure 3-14 Figure 3-15 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 35: Scanning Cone/Plate Spindles

    Attach the Spindle to the DVNX magnetic coupling (see Figures 3-16 and 17). Figure 3-16 Figure 3-17 Hold the barcode scanner approximately 3-5 inches from the spindle at a slight upward angle of 10-20°. Aim the barcode scanners red dot at the spindle barcode (see Figure 3- 18). Squeeze the barcode scanner trigger until it beeps and the Spindle field on the DVNext screen populates (see Figure 3-19).

  • Page 36: Scanning Cone/Plate Spindles, Attached To The Dvnext

    Figure 3-20 Figure 3-21 Hold the barcode scanner at a 20-30° downward angle, approximately 3-6 inches from the spindle (see Figure 3-22). Aim the barcode scanner’s red dot at the spindle barcode (see Figure 3-23). Squeeze the barcode scanner trigger until it beeps and the Spindle field on the DVNext screen populates.

  • Page 37: Scanning Sample Barcodes (Standard & Compliant Instruments)

    3.7.4 Scanning sample barcodes (standard & compliant instruments) Plug the barcode scanner into one of the USB Ports on the back panel of the DVNext. Wait for the barcode scanner to beep. On the Configure Viscosity Test screen, touch the Blue Arrow (see Figure 3-26) in the Sample ID field to open the Enter Sample ID screen (see Figure 3-27).

  • Page 38: Temperature Control

    The DVNext connects to the temperature control device through a dedicated communication cable. The Thermosel requires cable DVP-141. The water baths require cable DVP-207. These cables are available from AMETEK Brookfield. When configured for control of a temperature control device, the DVNext may have two temperature inputs: •...

  • Page 39: Multiple Data Points

    Note that temperature controllers can also be controlled through the RheocalcT software when they are connected to the computer using the proper cable. The Thermosel requires the HT-106 cable (RS-232), available from AMETEK Brookfield. The water bath requires the 225-173 cable (RS-232), which comes with the bath.
  • Page 40 Viscosity Test directly under the Temperature display. The factory setting is Single Point (see Figure 3-36). Pressing the blue arrow, in this field, will present the Data Collection screen (see Figure 3-37). Figure 3-36 Figure 3-37 Single point Collect only a single data point when the End Condition is met. Single point averaging Specify an amount of time over which to average measured data.

  • Page 41: End Condition Types

    total number of points to be collected will be displayed if the End Condition is set to Time. If the End Condition is not based on time, then it is possible that the step will conclude prior to a data point being collected. If you want a data point at the conclusion of the step regardless of the time interval, you can check the check box in the Data Interval screen.

  • Page 42: Additional Test Parameters

    the end condition will be met and the DVNext will end the test or move onto the next step, depending on the test parameters. Greater than The test will complete or move onto the next step once the specified end condition parameter (viscosity, torque, or temperature) measured by the device is greater than the value that is set by the user.
  • Page 43 Figure 3-39 Figure 3-40 Figure 3-41 Instructions Record specific instructions to the operator. This information will be presented immediately when the program is Run (see Figure 3-41). The operator is required to acknowledge the message before the program will continue. TIP: If the operator selects “Do not show this message again”...

  • Page 44: Running A Test

    AMETEK Brookfield does not recommend that data be collected below 10% Torque; however, data collection is not restricted. TIP: Torque on the DVNext is equivalent to the dial reading from the AMETEK Brookfield Dial Reading Viscometer or the % reading from AMETEK Brookfield Digital Viscometers (DV-E, DV-I, DV-II, DV-III).
  • Page 45 accessories include temperature probes (Thermosel) or optional chambers with embedded temperature probes (Small Sample Adapter). The units of temperature are defined in the Global Settings section of the Settings Menu. The temperature will not be displayed when no temperature probe is connected. Speed Speed is the selected speed from the Configure Viscosity Test screen TIP: Speed can be changed by switching from the Running Viscosity Test screen to the View Test screen using the...

  • Page 46: Results

    Figure 3-43 The More/Less Bar can be used to reduce the number of parameters shown in the display. The Speed parameter is active in this view. The operator can change the speed of test without returning to the Configure Viscosity Test screen. TIP: If the speed is changed during the execution of a saved test, then the test status will be changed to “Unsaved Test”.
  • Page 47 Save: Save data. Configure Test: Return to Configure Viscosity Test screen. Scroll Bar: Move up/down through a page of data. The Results screen offers several options for viewing test data. These options are accessed via the Down Arrow in the Navigation Bar at the top of the screen (see Figure 3-44). Figure 3-44 Table Display all data points.
  • Page 48 the Configure Viscosity Test screen. Notes Document any relevant information about the test or data. This information will be stored with the data set once saved. Compare results Load two data sets and view side by side, must be run from the same test to be able to compare results. Figure 3-45 Device info Display basic information about the data file and the specific DVNext Rheometer used to collect the data including:...
  • Page 49 Figure 3-46 Figure 3-47 Data averaging The DVNext Rheometer offers two techniques to average data, Live Averaging and Post Test Averaging. Data averaging can be useful when measuring samples with entrained air or suspended particles that cause some variation in measurement results. Data averaging may not be useful when changes in measurement results are caused by the rheological properties of the test sample such as thixotropy or pseudoplasticity (shear thinning).
  • Page 50 in Report, Post Test Averaging can be selected from the Down Arrow in the Results screen. Post Test Averaging offers two options: Step Averaging and Test Averaging (see Figure 3-48). Step Averaging Calculate Average and Standard Deviation for all data collected within a single step test. Step Averages will be displayed as shown below in Figure 3-49 Test Averaging Calculate Average and Standard Deviation for all data collected within step specified.

  • Page 51: Making Yield Measurements

    DV-III Ultra Rheometers. If you have experience with other AMETEK Brookfield equipment, this section will give you quick steps for making a yield measurement. If you have not used a AMETEK Brookfield Rheometer before, skip this section and go to (Section 4.2) for a detailed description.

  • Page 52: Selecting A Spindle/Speed

    4.3 Selecting a spindle/speed The DVNext has the capability of measuring viscosity over an extremely wide range. For example, the DVNext RV can measure fluids within the range of 100-40,000,000 cP. This range is achieved by using several spindles over many speeds. See Appendix B for details.

  • Page 53: Temperature Control

    Note that temperature controllers can also be controlled through the RheocalcT software when they are connected to the computer using the proper cable. The Thermosel requires the HT-106 cable (RS-232), available from AMETEK Brookfield. The water bath requires the 225-173 cable (RS-232), which comes with the bath.

  • Page 54: Test Parameters

    A two (2) digit code representing the spindle number used for the test must be selected. See Appendix A for more information regarding spindles for use with the DVNext Rheometer. Selection of the appropriate spindle code is important to ensure correct stress calculations. AMETEK Brookfield recommends the use of vane spindles for yield measurements.
  • Page 55 RheocalcT™ software so the decrease in torque may be more easily visualized. However, this will also affect the calculated yield stress value. TIP: AMETEK Brookfield recommends a torque reduction value of 100%. Yield Limits These stress values can be used as a Quality Control tool.

  • Page 56: Running A Yield Test

    100%. If the torque reading falls below 10% the labels in the data fields will flash to indicate an error condition. AMETEK Brookfield does not recommend that data be collected below 10% Torque however data collection is not restricted.
  • Page 57 DVP-94Y probe that can be inserted into the test sample or a water bath. The Cone/Plate version of the DVNext can be utilized with a sample cup that includes an embedded temperature probe. Some AMETEK Brookfield accessories include temperature probes (Thermosel) or optional chambers with embedded temperature probes (Small Sample Adapter).
  • Page 58 Down Arrow: Select Results Options. Blue Arrow: Select Page of Results Table. Print: Print Data to USB printer. Save: Save data. Configure Test: Return to Configure Viscosity Test screen. Scroll Bar: Move up/down through a page of data. The Results screen offers several options for viewing test data. These options are accessed via the Down Arrow in the Navigation Bar at the top of the screen (see Figure 4-8).
  • Page 59 Figure 4-8 Figure 4-9 Figure 4-10 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 60: Settings

    The Temperature Offset setting allows the user to create up to 10 temperature offset values for connected temperature probes. AMETEK Brookfield offers several types of temperature probes for use with the DVNext including: DVP-94Y immersion probe (supplied with the DVNext), CPA-44PYZ embedded probe (optional with Cone/ Plate DVNext Rheometers), and SC4-13RP embedded probe (optional with Small Sample Adapter).
  • Page 61 Label Large: A large label (2.31-inch x 4.0 inch) that allows for printing of a complete set of parameters for a single data point. The label stock is available from AMETEK Brookfield; part number GV-1049 (standard) or GV-1083 (long life).
  • Page 62 The Oscillation Check is not a guarantee of proper calibration. It is only an indication of the performance of the lower bearing of the rheometer. Calibration can only be verified using a calibration standard such as AMETEK Brookfield Silicone and Mineral Oil standards.

  • Page 63: User Settings

    Figure 5-6 TIP: The information on the About screen will be needed when contacting AMETEK Brookfield for support. To return from the About screen, press the Left Arrow navigation button in the Title Bar. 5.2 User settings The User Settings menu includes settings related to specific users. The DVNext may be set up for a single user setting (used by one or more operators) or for multiple users who access through a Log in and Password.
  • Page 64 TIP: If the administrator password is lost, it can be reset. Please contact AMETEK Brookfield or your local authorized dealer. Remember to have the information found in the About screen available.
  • Page 65 Temperature Centigrade Fahrenheit 100°C = 5/9 * (212°F – 32) Stress (Shear) Dyne/cm2 Dyne per square centimeter N/m2 Newton / square meter Pascal 10 dyne/cm2 = 1 N/m2 = 1 Pa Density g/cm3 gram / cubic centimeter kg/m3 kilogram / cubic meter 1 g/cm3 = 1000 kg/m3 TIP: When cSt units are chosen for viscosity, a density value must be entered in the Density field in Configure Viscosity Test.
  • Page 66 Figure 5-8 Figure 5-9 The error message will provide some detail about the alarm condition. The test and data collection will continue while the Warning message is displayed. The audible alarm will continue to sound until the operator touches the OK button within the Warning box.
  • Page 67 Set Spindle screen). When scroll list is selected, the speed entry is restricted to the classic AMETEK Brookfield speed sets for the LV and RV/HA/HB rheometers. The contents of the scroll list are defined in the Speed List menu. Each speed can be individually selected or deselected through the use of a check box.

  • Page 68: Administrator Account And Admin Functions

    5.4 Administrator account and admin functions The DVNext device comes with one default account, the Administrator. This account has access to the Admin Functions sub menu, which allows the Administrator to change the various settings and parameters of the device. The functionality of the Administrator account and the Admin Functions menu will depend on the edition of the DVNext device (Compliant Edition vs Standard Edition).
  • Page 69 On the Standard Edition DVNext, the administrator user account is automatically logged in any time the device is powered up. There is no method to set up another account on the Standard Edition DVNext nor is there a way to require a password like in the Compliant Edition.

  • Page 70: Log In And Lock Out (Compliant Instruments Only)

    Figure 5-13 5.4.2 Log in and lock out (compliant instruments only) The Log In and Lock Out menu allows the user to define the Log In requirement and toggle the Lock Out feature within Running Viscosity Test (see Figure 5-14). Figure 5-14 The Log In check box controls the Log In requirement.

  • Page 71: Electronic Signatures (Compliant Instruments Only)

    specified. For example: Timed Lock Out is set to 1 minute; 30 seconds after the test has begun, the operator reviews the test parameters by touching Views Test; the DVNext will lock automatically 1 minute after that key press (90 seconds after the test began running).
  • Page 72 Table 5-1: Factory Default User Settings (continued on following page) Administrator Power User User General Enforce Spindle MUST be scanned in Settings External Mode Only Use Accessory Rules • • • Default Temperature Set Point Temperature Probe Offset • • Allow Test Done Alarm •...
  • Page 73 Data Access Load a Test Instrument • • • Functions • • Ethernet • • Save a Test Instrument • • • • • Ethernet • • Load Data Instrument • • • • • Ethernet • • Save Data Instrument •...

  • Page 74: Set Time And Date

    Post Test Averaging • • Instructions • • Save Path • • Yield Test Spindle • • Setup Immersion Mark • • Pre-Shear Speed • • Pre-Shear Time • • Wait Time • • Run Speed • • Zero Speed •...

  • Page 75: Default Path

    Locate the Backup file on the USB Flash Drive. Press the Import button to upload Settings from the Backup file. Update software The internal operating software of the AMETEK Brookfield DVNext can be updated from a USB Flash Drive as new versions become available from AMETEK Brookfield. Insert a USB Flash Drive into the DVNext that contains the operating software file.

  • Page 76: Settings Reset

    The Calibration Reminder will be presented during the first power up on or after the specified day. The message box (see Figure V-17) requires that the user press OK before the leveling/AutoZero will be performed. The calibration reminder might be reset by AMETEK Brookfield or your local authorized dealer when the unit is returned for calibration.

  • Page 77: Torque Filtering

    Figure 5-16 Figure 5-17 5.4.11 Torque filtering Torque filtering is an option that is available on the DVNext. When torque filtering is turned on, quickly changing torque values are dampened. Through enabling torque filtering allows for the performance of the DVNext to meet the same performance of the Legacy DV-II and DV-III viscometers.
  • Page 78 process can be seen in the below figure (see Figure 5-18). Figure 5-18 The DVNext also filters the results files according to their approval level. Once electronic signatures have been turned on, the device will create four new smart folders: Approved, Reviewed, Submitted, and Unsigned. Unsigned files will be filtered into the unsigned folder.
  • Page 79 Through this, the admin can sort how much access the individual user has on the device, depending on what user access level they have been assigned. Multiple user logins The device will by default have one user, the Administrator. The Administrator account has no restrictions placed on it and can set up other users on the device.

  • Page 80: The Power Law (Ostwald) Model

    6.1 The Power Law (Ostwald) model τ τ =����̇ �� ( = shear stress, �� = consistency index, ��̇ = shear rate, and �� = flow index) What does it tell you? The Power Law model provides a consistency index, k, which is a product’s viscosity at one reciprocal second. (Reciprocal seconds are the units of measurement for shear rate).

  • Page 81: The Herschel-Bulkley Model

    With the new ingredient the shampoo has a flow index (n) of 0.081. This indicates that the shampoo is shear-thinning enough to flow properly during processing and that it will flow properly for the end-user. The consistency index, k, indicates how the shampoo behaves when it experiences low shear rates. The power law values show that the shampoo becomes quite thin at process shear rates and therefore it can be easily pumped into filling equipment, hold tanks, etc.

  • Page 82: The Bingham Model

    is applied. As a result, the flow curve intersects the y-axis at a point greater than 0. After yielding, the product creates a flow curve and behaves as a Power Law fluid so that n indicates where there is a shear-thinning or shear-thickening tendency.

  • Page 83: The Casson Model

    When should you use it? This model should be used with non-Newtonian materials that have a yield stress and then behave in a Newtonian fashion once they begin to flow. As a result, the shear stress shear rate plot forms a straight line after yielding. (Products that have a yield stress only begin to flow after a certain amount of shear stress is applied.

  • Page 84: Other Rheological Models

    low shear rates. An Example of the Casson Model at Work Before releasing a new over the counter gel, a pharmaceutical company needs to learn how it will behave which it is being used by the end consumer. They Pharmaceutical Gel perform a full viscosity profile and apply the Casson that their ointment has a higher yield stress τ...

  • Page 85: The Ipc Paste Model

    The IPC Paste Model was developed for solder pastes. It calculates the viscosity of solder pastes at 10 RPM. The IPC Paste Model requires that the product be tested with a AMETEK Brookfield Spiral Adapter at multiple speeds. More details can be found in the IPC- TM- 650 Test Methods Manual (methods 2.4.34.2 and 2.4.3).
  • Page 86 Figure 6-6 Figure 6-7 Figure 6-8 Figure 6-9 Figure 6-10 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 87: Appendix A - Cone/Plate Rheometer Set Up

    Micrometer Adjustment Ring will become hot when controlling sample cup at temperatures above 50°C. Programmable DVNext Cone/Plate Rheometers, S/N 50969 and higher, have an Electronic Gap Setting feature. This feature enables the user to easily find the 0.0005 inch gap setting that was established at AMETEK Brookfield prior to shipment.

  • Page 88: Set-Up

    A.2 Set-up • Be sure that the Rheometer is securely mounted to the Laboratory Stand, leveled and zeroed with no cone or cup attached and 0% torque is displayed. • 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.

  • Page 89: Set-Up

    A.3 Set-up • Select configure viscosity test from the main menu. • Press spindle and select or scan one of the cone plate spindles (40, 41, 42, 51, 52). • Confirm you would like to set the gap by pressing Yes. •...

  • Page 90: Verifying Calibration

    Select a AMETEK 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. AMETEK Brookfield uses mineral oil viscosity standard fluids to calibrate Wells Brookfield Cone/Plate Rheometers at the factory.

  • Page 91: Appendix B - Viscosity Ranges

    APPENDIX B - VISCOSITY RANGES VISCOSITY RANGE TABLES Viscosity ranges shown are for operational speeds 0.1 through 200 RPM. LV Rheometer with LV spindles #1-4 and RV/HA/HB Rheometers with spindles #1-7 Viscosity Range cP Rheometer Minimum Maximum DVNextLV 6,000,000 DVNextRV 40,000,000 DVNextHA 80,000,000...
  • Page 92 UL Adapter UL Spindle Viscosity (cP) Shear Rate Sec-1 DVNextLV DVNextRV DVNextHA DVNextHB YULA-15 or 15Z 1 - 2,000 3.2 - 2,000 6.4 - 2,000 25.6 - 2,000 1.22N DIN Adapter Accessory DDA Spindle Viscosity (cP) Shear Rate Sec-1 DVNextLV DVNextRV DVNextHA DVNextHB...
  • Page 93 Vane Spindles Spindle Torque Range Shear Stress Range Viscosity Range (Pa) cP(mPa’s) V-71 NOT RECOMMENDED FOR USE ON LV TORQUE V-72 .188-1.88 104.04-1.04K V-73 .938-9.38 502-5.02K V-74 9.38-93.8 5.09K-50.9K V-75 3.75-37.5 1.996K-19.96K V-71 .5-5 262-2.62K V-72 2-20 1.11K-11.1K V-73 10-100 5.35K-53.5K V-74 100-1K...
  • Page 94 1.25 cP at 240 RPM The AMETEK Brookfield rheometer has a stated accuracy of +/- 1% of the range in use. This stated accuracy applies when the rheometer is used in accordance with the operating instructions detailed in the instrument instruction manual and the calibration test fluid is used in accordance with the instructions provided by the fluid supplier (including the critical parameters of temperature control and stated fluid accuracy).

  • Page 95: Appendix C - Variables In Viscosity Measurements

    If you take rheometer readings from a low RPM to a high RPM and then back to the low RPM, and the readings are lower for the descending step, the material is time dependent, thixotropic. AMETEK Brookfield publication, “More Solutions to Sticky Problems”, includes a more detailed discussion of rheological properties and non-Newtonian behavior. Rheometer related variables Most fluid viscosities are found to be non-Newtonian.
  • Page 96 • Spindle used • Whether or not to attach the guard leg • Test speed or speeds (or the shear rate) • Length of time or number of spindle revolutions to record viscosity • How the sample was prepared and/or loaded into the container M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 97: Appendix D - Spindle Entry Codes And Smc/Src Values

    APPENDIX D - SPINDLE ENTRY CODES AND SMC/SRC VALUES Each spindle has a two-digit entry code which is entered via the keypad on the DVNext. The entry code allows the DVNext to calculate Viscosity, Shear Rate and Shear Stress values. Each spindle has two constants which are used in these calculations.
  • Page 98 SPINDLE ENTRY CODE 0.64 1.223 DIN81 1.29 DIN82 3.75 1.29 DIN83 12.09 1.29 DIN85 1.22 1.29 DIN86 3.65 1.29 DIN87 12.13 1.29 SC4-14 SC4-15 0.48 SC4-16 0.29 SC4-18 1.32 SC4-21 0.93 SC4-25 0.22 SC4-27 0.34 SC4-28 0.28 SC4-29 0.25 SC4-31 0.34 SC4-34 0.28...
  • Page 99 Table D-2 lists the model codes and spring torque constants for each Rheometer model. Table D-2 Model Model Code on DVNext Screen DVNextLV 0.09375 DVNextRV DVNextHA DVNextHB The full-scale viscosity range for any DVNext model and spindle may be calculated using the equation: Full Scale Viscosity Range: where: = DVNext Torque Constant from Table D-2...
  • Page 100 Table D-4 PRE-SHEAR SPEEDS (RPM) Range Increment 0.01 to 0.09 0.01 0.1 to 5.0 6, 10, 12, 20, 30, 50, 60, 100, 200 ZERO STEP SPEEDS (RPM) RUN SPEEDS (RPM) RANGE INCREMENT RANGE INCREMENT 0.01 to 0.09 0.01 0.01 to 0.09 0.01 0.1 to 0.5 0.1 to 5.0...
  • Page 101 γ =θ — (S x T) γ Where: θ = Strain (rad) = Angular rotation of motor shaft (rad) = Radial Spring Factor (rad/%torque) = % Torque reading Where: θ ω = Angular rotation of motor shaft (rad) = Rotational speed (rpm) = Time of test (seconds)
  • Page 102 Where: = Calibration time (time for 0% to 100% spring wind up during calibration) (milliseconds) = Base increment (milliseconds) = Base increment calibration torque (%torque/base increment) = Speed (rpm) = Calibration speed (fixed at 0.1 rpm) (rpm) M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 103: Appendix E - Spindle Entry Codes And Range Coefficients

    APPENDIX E - SPINDLE ENTRY CODES AND RANGE COEFFICIENTS The range coefficient is a convenient tool for quickly determining the maximum viscosity that can be measured with a specific spindle/speed combination. Identify the spindle in use and the torque range (LV, RV, HA, HB) of the Viscometer/Rheometer.
  • Page 104 Range Coefficient Spindle Entry Code 187,200 2,000,000 4,000,000 16,000,000 468,000 5,000,000 10,000,000 40,000,000 936,000 10,000,000 20,000,000 80,000,000 Spiral 98,400 1,050,000 2,100,000 8,400,000 6,400 12,800 51,200 HT-DIN-81 3,420 36,500 73,000 292,000 SC4-DIN-82 3,420 36,500 73,000 292,000 SC4-DIN-83 11,340 121,300 242,600 970,400 ULA-DIN-85 1,144 12,200...

  • Page 105: Appendix F - Calibration Procedures

    APPENDIX F - CALIBRATION PROCEDURES The accuracy of the DVNext is verified using viscosity standard fluids which are available from AMETEK Brookfield or your local authorized dealer. Viscosity standards are Newtonian, and therefore, have the same viscosity regardless of spindle speed (or shear rate). Viscosity standards, calibrated at 25°C, are shown in Table F-1 (Silicone Oils) and Table F-2 (Mineral Oils).
  • Page 106 AMETEK Brookfield does not re-certify Viscosity Standard Fluids. We will issue duplicate copies of the Certificate of Calibration for any fluid within two years of the purchase date. AMETEK Brookfield Viscosity Standard Fluids are reusable provided they are not contaminated. Normal practice for usage in a 600 mL beaker is to return the material from the beaker back into the bottle.
  • Page 107 Calibration procedure for a Thermosel System AMETEK Brookfield recommends a two-step check. First verify the calibration of the rheometer using the standard rheometer spindles (LV #1-3, RV #2-6, HA #2-6 and HB #2-6 or cone/plate spindles) as detailed in this appendix.
  • Page 108 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. Consult with AMETEK Brookfield or an authorized dealer to determine which fluid is appropriate.
  • Page 109 The spindle must rotate at least five (5) times before a viscosity reading is taken. • The use of AMETEK Brookfield Viscosity Standard fluids in the range of 5 cP to 5000 cP is recommended for cone/plate instruments. Please contact AMETEK Brookfield or an authorized dealer if your calibration procedure requires more viscous standards.
  • Page 110 At 12 RPM: 91.7 cP to 111.3 cP At 30 RPM: 97.4 cP to 105.6 cP If your measured values fall outside of these windows, contact AMETEK Brookfield or your local authorized dealer to discuss your results and determine whether your instrument is out of calibration.

  • Page 111: Appendix G - The Ametek Brookfield Guard Leg

    But it should be known that this type of torque reading will not convert into a correct centipoise value when using a AMETEK Brookfield factor if the boundary conditions are not those specified by AMETEK Brookfield.
  • Page 112 B-21Y B-21Y Guard Leg For RV Torque Guard Leg For RV Torque Figure G-1 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 113: Appendix H - Automatic Oscillation Check

    The Oscillation Check is not a guarantee of proper calibration. It is only an indication of the performance of the lower bearing of the rheometer. Calibration can only be verified through the use of a calibration standard such as AMETEK Brookfield Silicone and Mineral Oil standards.
  • Page 114 Figure H-3 Figure H-4 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 115: Appendix I - Ftp Server Connection Specification

    APPENDIX I - FTP SERVER CONNECTION SPECIFICATION Introduction This guide will instruct you how to setup an Ethernet connection between your DVNext and personal Computer (PC) by using the File Transfer Protocol (FTP). The FTP connection feature on your DVNext device will enable you export files directly to an FTP Server program running on a PC.
  • Page 116 Figure I- 1: Cat 5 Ethernet RJ-45 Figure I- 2: D-Link Ethernet Broadband Router – Model no DI 604 Figure I- 3: RJ-45 Ethernet port on Laptop Plug in another Straight Ethernet cable (Figure I- 1) into another open RJ-45 Ethernet port on your router (Figure I- 2) and connect the other end to the RJ-45 Ethernet port on your DVNext Device (Figure I- 4).
  • Page 117 Figure I- 4: RJ-45 port located on back of DV device M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 118: Part B: Filezilla Ftp Server

    Figure I- 5: Simple Network Part b: FileZilla FTP server We recommend using FileZilla FTP Server (ver. 0.9.60.2 beta) on a Windows PC or Laptop to be able to set up and implement a personal FTP Server. Note: You may need administration access to be able to download and install necessary files.
  • Page 119 Figure I- 6 Clicking “Download FileZilla Server” will bring you to another window with a similar button to “Download FileZilla Server” for Windows Operating System (Figure I- 7). After clicking “Download FileZilla Server” from this window, the downloading file should pop up at the bottom left of your browser. Open the file to start the Installation (Figure I- 7). Figure I- 7: Opening downloaded Allow the application to make changes to your device (Figure I- 8).
  • Page 120 Agree to the EULA (Figure I- 9). Figure I- 9: Agreeing to EULA For the “Choose Components” screen, make sure the same defaults are chosen as seen in Figure I- 10 below. Figure I- 10: Choosing components In the next window, you can choose the installation destination path for FileZilla. We kept the default destination path chosen which was "C:\Program Files (x86)\FileZilla Server\"...
  • Page 121 (default)” should be selected. The port for the admin interface should be “14147” (Figure I- 12). Figure I- 12: Startup settings and admin Next, the Startup settings screen will pop up. Here you can choose whether or not you want FileZilla to automatically open when you log onto your computer and if you want FileZilla to open immediately when installation is complete.
  • Page 122 Figure 14: Installation progress window When closing the “Installation complete” window, FileZilla Server should automatically open. There should be another prompt that pops up looking like Figure 15 shown below. For the “Host:” field, enter in “localhost” and keep the “Port:” field as "14147"...
  • Page 123 When completed, your FileZilla Server window should now look something like Figure 16 shown below. Figure I- 16: FileZilla Server start Note, there is no means provided to change the port number of the DVNext, it is preset to be 21. This means that you must make sure that the FTP server is set up on port 21 ONLY (it is usually like this by default).

  • Page 124: Part C: Create Ftp Home Directory And Any Sub-Directories

    Part c: Create FTP home directory and any sub-directories In this step we are going to create the Home Directory for the FTP Server. Optionally, you may add subfolders to help organize your files. Open File Explorer on the Windows machine by clicking the “Type here to search” field near the bottom left corner, then begin typing in the word “File”...

  • Page 125: Part D: User(S) With Access To The Ftp Home Directory

    Figure I- 21 If you desire any sub-directories, open the new Home directory folder you just created and add as many new folders (sub-directories) you wish. We added one sub-directory called “Test Results” (Figure 22). The “Test Results" folder is going to be the directory we want to export our result files to in the future.
  • Page 126 Figure I- 24: Users configuration In the User configuration window, click the "General" page from the "Page:" Selection box (Figure I- 25). Figure I- 25: Selecting General On the right side of the General page, locate the Users list. Click the Add button under the Users list (Figure I- 26). M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...
  • Page 127 Figure I- 26: Adding a User Go ahead and give a name for this user (we used “Lab Tech“), then click OK (Figure 27). Once the user is created, you should see the User’s name in the Users list (Figure 28). Figure I- 27: Naming created User M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...
  • Page 128 Figure I- 28: New User created Next, under Account settings, click the box next to "Password": and enter a desired password for this user (you must remember this password). We chose “admin1” for our Password. (Figure I- 29). Figure I- 29: Creating Password for User Go to the “Page:”...
  • Page 129 Figure I- 30: Selecting Shared folders To the right, you should see the User you just created under the box labeled “Users”. Make sure the User is highlighted and click the "Add" button under the “Shared folders” selection menu (Figure 31). Figure I- 31: Adding directory for user Lab A Folder Directory will pop up.
  • Page 130 Figure I- 32: Selecting created FTP Once selected, make sure there is a bold “H” appearing before the directory’s path indicating this is the Home directory (Figure 33). Also, make sure all the File privileges are checked as shown (Figure 33). When completed, press the OK button at the bottom left to save your settings (Figure I- 33).

  • Page 131: Part E: Temporarily Turn Off Firewall/Security Preferences

    Part e: Temporarily turn off Firewall/security preferences Remember that Windows Defender Firewall must always be disabled to communicate with the DVNext FTP Client unless you configure specific FTP settings. Make sure the FTP server can communicate with your DVNext devices by turning off Windows Defender Firewall for both private and public networks on your Windows PC/Laptop.
  • Page 132 Figure I- 36 Figure I- 37 Now, click the bubbles to the left of “Turn off Windows Defender Firewall (not recommended)” under both Private Network settings and Public network settings, then click OK at the bottom of the window (Figure 38). M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...
  • Page 133 Figure I- 38: Turning off Windows Defender Firewall for both Private and Public After clicking OK, the screen should look like Figure 39 below. If so, you may close the Windows Defender Firewall window. Figure 39: Closing Windows Defender Firewall Note: We highly suggest and encourage you to turn your Windows Defender Firewall back on after testing the FTP Server is complete.

  • Page 134: Part F: Determine Ip Address Of The Ftp Server

    Part f: Determine IP address of the FTP server To get IP address of your computer/FTP Server, click the Windows icon at the bottom left of your screen on your Windows computer. Begin to type the letters "cmd". Once the Command Prompt application appears, click it to open it (Figure I- 40).

  • Page 135: Part G: Setup Ftp Folder On The Device With Corresponding Credentials

    Figure I- 42: Typing ipconfig into Command Prompt and pressing <Enter> Your IP address for the FTP Server will be the address associated with “IPv4 address” under the Ethernet connection. Looking at the example ipconfig results (Figure 43), the IP address for the server is 192.168.2.5. Remember this IP address.
  • Page 136 Figure I- 44: DVNext device path to settings Go to Admin Functions>Manage Data >FTP Settings (Figure I- 45). Figure I- 45: DV device path to get to FTP Press the Add Folder button (bottom) from the FTP Settings screen (Figure I- 46). Figure I- 46 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 137: Part H: Log On To Ftp Server On The Pc

    FTP Alias is a shortcut used by the DVNext to easily identify the folder. Enter in any name you would like (We chose “My FTP”). The IP Address consists of 4 groups of numbers separated by a period. Tap on each group in the box and enter in the corresponding digits for that group.
  • Page 138 Figure I- 49: Logging onto FTP Server by Entering User name with corresponding Password Once completed, another window should pop up showing any folders in your FTP server’s Home directory (Figure I I - 50). Figure I- 50 Look at your FileZilla Server window, it should now have some more information telling you that the user is connected (Figure I- 51).

  • Page 139: Part I: Exporting Result Files

    Part i: Exporting result files Now your device should be all set to start exporting files to the FTP server. Let’s test this by exporting result files to the FTP server. Navigate to the Export Results screen on the device: Settings icon (top right corner of Main Menu) (Figure I- 52).
  • Page 140 The FTP Alias is also →→→→→, not shown in part of the Export Path picture Figure I- 54: Specifying file format and export You should see result files being exported to that folder in the format you chose (Figure I- 55). Figure I- 55 Open another File Explorer tab as you have done previously and navigate to the folder you were exporting to.

  • Page 141: Quick Setup Guide

    Figure 56: Path for folder – C:/DVNext_FTP/Test Note: Testing is now complete so you may turn your Windows Defender Firewall back on if no further testing is to be done. Remember that Windows Defender Firewall must always be disabled to communicate with the DVNext FTP Client, unless you configure specific FTP settings.
  • Page 142 • Make sure that no Malware/Virus protection is active. If there is Malware or Virus protection on your PC, it may block you from sending files to your FTP Server on the PC. To prevent this, make sure all Firewall and/or virus protection is turned off on your PC at least until you are done sending files to the FTP Server.

  • Page 143: Appendix J - Speed Selection

    APPENDIX J - SPEED SELECTION AMETEK Brookfield Rheometers offer a variety of speeds to provide for a wide range of viscosity measurement capabilities. AMETEK Brookfield has traditionally supplied a defined set of speeds with specific Torque ranges: 0.3, 0.6, 1.5, 3.0, 6.0, 12, 30, 60 0.5, 1.0, 2.0, 2.5, 4.0, 5.0, 10, 20, 50, 100...

  • Page 144: Appendix K - Laboratory Stands

    APPENDIX K - LABORATORY STANDS Model G is the standard laboratory stand which comes with the DVNext Rheometer. Figure K-1: Model G Laboratory Stand Item Part No. Description VS-CRA-14S Upright Rod and Clamp Assembly VS-CRA-18S Upright Rod and Clamp Assembly Optional GV-1201 Base, includes 2 GV-1203 leveling screws...
  • Page 145 Model QB is an optional laboratory stand which can be ordered for use with the DVNext Rheometer. The advantage is the rapid speed of movement for lowering and raising the rheometer head. Figure K-2: Model QB Laboratory Stand Item Part No. Description VSQA-100Y Upright Rod and Clamp Assembly...
  • Page 146 Do not use the DVNext Rheometer with any laboratory stand that does not utilize the GV-1201 base. This large base is necessary for stability of the DVNext Rheometer during use. Earlier versions of the AMETEK Brookfield Laboratory Stand including the Model A and Model S should not be used with the DVNext.

  • Page 147: Appendix L - Dve 50-A Probe Clip

    APPENDIX L - DVE 50-A PROBE CLIP Probe Clip DVE-50A is supplied with all model DVNext Rheometers, DV-III Rheometers, and Digital Temperature Indicators. It is used to attach the RTD temperature probe to the LV Guard Leg (Part No. B-20Y) or 600 mL low form Griffin beaker.

  • Page 148: Appendix M - Screen Protector

    APPENDIX M - SCREEN PROTECTOR The AMETEK Brookfield DVNext Rheometer is provided with a screen protector that can be applied to the touch screen surface. This screen protector is designed for prolonged use. AMETEK Brookfield recommends replacing the screen protector within 1 year of application. The screen protector is provided in a kit (part number GV-1019) that includes the following items: •...
  • Page 149 Step 3: • Completely remove Tab 1 (see Figure M-3). • Lightly press the screen protector to the touch screen. • Inspect the alignment of the screen protector. If the screen protector is touching the bezel (frame), then remove and reapply.

  • Page 150: Appendix N - Fault Diagnosis And Troubleshooting

    APPENDIX N - FAULT DIAGNOSIS AND TROUBLESHOOTING Listed are some of the more common problems that you may encounter while using your Rheometer. Spindle does not rotate • Make sure the rheometer is plugged in. • Check the voltage rating on your rheometer (5, 220V); it must match the wall voltage. •...
  • Page 151 • Verify power supply. • Contact AMETEK Brookfield or your local authorized dealer for repair (see Appendix Q). • Bent spindle or spindle coupling. • Temperature fluctuation in sample fluid. • Use temperature bath for control. M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 152: Appendix O - Instrument Dimensions

    APPENDIX O - INSTRUMENT DIMENSIONS M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

  • Page 153: Appendix P - Online Help And Additional Resources

    AMETEK Brookfield has its own YouTube channel. Videos posted to our website can be found here as well as other "homemade" videos made by our own technical sales group.

  • Page 154: Appendix Q - Warranty Repair And Service

    Transportation is at the purchaser’s expense. The Rheometer should be shipped in its carrying case together with all spindles originally provided with the instrument. If returning to AMETEK Brookfield, please contact us for a return authorization number prior to shipping.
  • Page 155 For repair or service in China return to: AMETEK Commercial Enterprise (Shanghai) Co. Ltd. Room 810 Dongbao Plaza, No.767 East Dongfeng Road, Guangzhou, China (510600) Tel: 86-20-8363 4768 Fax: 86-20-8363 3701 Email (Sales): brookfield-china.sales@ametek.com Email (Service): brookfield-china.service@ametek.com www.brookfieldengineering.cn For repair or service in Germany return to: AMETEK GmbH / B.U.
  • Page 156 Email (Sales): brookfield-thailand.sales@ametek.com Email (Service): brookfield-thailand.service@ametek.com store.brookfieldengineering.asia Onsite service at your facility is available from AMETEK Brookfield. Please contact our Service Department in the United States, United Kingdom, Germany, India, Thailand, or China for details. M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...
  • Page 157 M19-2101 REVISION 2.0 D V N E X T R H E O M E T E R - O P E R AT I O N A L M A N U A L...

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