M19-2101 REVISION 2.0 DVNEXT RHEOMETER - OPERATIONAL MANUAL
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 ...................................................................................................... 51
4.3 Selecting a spindle/speed ................................................................................................................................. 52
4.4 Temperature control ............................................................................................................................................ 53
4.5 Test parameters .................................................................................................................................................... 54
4.6 Running a Yield Test ............................................................................................................................................ 56
5. SETTINGS ............................................................................................................................................... 60
5.1 Device setup ............................................................................................................................................................ 60
5.2 User settings .......................................................................................................................................................... 63
5.4 Administrator account and admin functions .............................................................................................. 68
5.4.1 Scanning accessory barcodes (compliant instruments only) .............................................................................................................68
5.4.2 Log in and lock out (compliant instruments only) ....................................................................................................................................70
5.4.3 Electronic signatures (compliant instruments only) ................................................................................................................................71
5.4.4 Users and access (compliant instruments only) .......................................................................................................................................71
5.4.5 Set Time and Date ..................................................................................................................................................................................................74
5.4.6 Manage data .............................................................................................................................................................................................................. 74
5.4.7 Default path ................................................................................................................................................................................................................75
5.4.8 Settings reset ............................................................................................................................................................................................................76
5.4.9 Device reset ...............................................................................................................................................................................................................76
5.4.10 Calibration Reminder............................................................................................................................................................................................76
5.4.11 Torque filtering ..........................................................................................................................................................................................................77
5.5 21 CFR Part 11 compliance (compliant instruments only) .......................................................................77
6.1 The Power Law (Ostwald) model .....................................................................................................................80
6.2 The Herschel-Bulkley model ............................................................................................................................. 81
6.3 The Bingham model ............................................................................................................................................. 82
6.4. The Casson model .............................................................................................................................................. 83
6.5 Other rheological models ................................................................................................................................. 84
6.6 The IPC Paste Model ........................................................................................................................................... 85
APPENDIX A - CONE/PLATE RHEOMETER SET UP .................................................................. 87
A.1 Electronic gap setting features ........................................................................................................................ 87