Brookfield DV-III Ultra Rheometer - Manual (Page 3)

Brookfield Engineering Laboratories, Inc. Page 3 Manual No. M/98-211-B0104
Brookfield Engineering Laboratories, Inc. Page 3 Manual No. M98-211-E0912
Table of Contents
I. Introduction .......................................................................................................... 5
I.1 Torque Measurement .................................................................................................................5
I.2 Viscosity Units of Measurement ................................................................................................5
I.3 Yield Stress Measurement ........................................................................................................6
I.4 Components ..............................................................................................................................7
I.5 Dimensional Information ............................................................................................................8
I.6 Utilities .......................................................................................................................................9
I.7 Specification ..............................................................................................................................9
I.8 Safety Symbols and Precautions ............................................................................................. 11
I.9 Data Retention ......................................................................................................................... 11
I.10 Set-Up ................................................................................................................................... 11
I.11 Connections ...........................................................................................................................15
I.12 Key Functions ........................................................................................................................16
I.13 Cleaning .................................................................................................................................17
II. Getting Started ................................................................................................... 18
II.1 Autozero .................................................................................................................................18
II.2 Rheometer Display .................................................................................................................18
II.3 Spindle Entry ..........................................................................................................................21
II.4 Direct Speed Entry .................................................................................................................23
II.5 External Control ......................................................................................................................24
II.6 Preventative Maintenance ......................................................................................................25
III. Making Viscosity and Yeild Measurements .................................................... 27
III.1 Quick Start .............................................................................................................................27
III.2 Preparations for Making Measurements ................................................................................28
III.3 Selecting a Spindle/Speed ....................................................................................................30
III.4 Multiple Data Points ...............................................................................................................30
IV. Programming the DV-III Ultra and Data Collection Methods/Analysis ......... 31
IV.1 Programming Concepts .........................................................................................................31
IV.2 DV-III Speed/Time Pair Programs for Making Viscosity Measurements ...............................32
IV.3 Bevis Programs for Making Viscosity Measurements ...........................................................42
IV.3.1 Setting Up Bevis Programs ............................................................................................42
IV.3.1.1 Description of B.E.V.I.S. Commands ......................................................................43
IV.3.1.2 Example Programs .................................................................................................46
IV.3.2 Running Bevis Programs in Standalone Mode ...............................................................47
IV.4 Choosing the Best Data Collection Method for Viscosity Tests .............................................49
IV.5 Data Analysis for Viscosity Tests ...........................................................................................50
IV.6 Automated Data Gathering and Analysis using Rheocalc .....................................................50
IV.7 Math Models ..........................................................................................................................50
IV.7.1 The Power Law (Ostwald) Model ...................................................................................42
IV.7.2 The Herschel/Bulkley Model ...........................................................................................42
IV.7.3 The Bingham Model .......................................................................................................42
IV.7.4 The Casson Model .........................................................................................................42