Wyatt Technology Optilab rEX User Manual page 4

Contents
6.2 dn/dc Measurement .................................................................................... 6-6
6.3 Instrument Calibration for aRI ..................................................................... 6-7
6.3.1 General Information ........................................................................................6-7
6.3.2 Collecting Data for Optilab rEX aRI Calibration ..............................................6-7
6.4 Absolute Refractive Index Measurement .................................................. 6-10
Chapter 7: In-Line HPLC Detection......................................... 7-1
7.1 Conditions for In-Line Operation ................................................................. 7-2
7.2 Sample Preparation .................................................................................... 7-3
7.3 Measurement .............................................................................................. 7-3
Chapter 8: Service and Maintenance...................................... 8-1
8.1 Replacing the LED/Fiber Light Source ........................................................ 8-2
8.2 Cleaning After a Fluid Leak ........................................................................8-11
8.3 Cleaning the Air Intake Filter ..................................................................... 8-12
8.4 Changing a Fuse ....................................................................................... 8-12
8.5 Optilab rEX Firmware Upgrades ............................................................... 8-13
Chapter 9: Troubleshooting .................................................... 9-1
9.1 Low Light Alarm .......................................................................................... 9-2
9.2 Temperature Will Not Set Below 20 C ......................................................... 9-3
9.3 Noisy Baseline ............................................................................................ 9-4
9.4 Microsoft Windows Encounters Problems ................................................... 9-4
Appendix A: Acronyms and Abbreviations List................... A-1
A.1 Acronyms and Abbreviations ...................................................................... A-2
Appendix B: Operating Principles and Theory..................... B-1
B.1 Basic Principles .......................................................................................... B-2
B.1.1 Conventional Flow Cell ................................................................................. B-2
B.1.2 Optilab rEX Flow Cell ..................................................................................... B-3
B.2 Measurement of the Beam Deflection Angle .............................................. B-4
B.2.1 Conventional Split Photodiode Based Instrument ........................................ B-4
B.2.2 Wyatt Technology Corporation Beam Positioning Technology ...................... B-4
Appendix C: Optilab rEX Specifications ............................... C-1
C.1 Specifications .............................................................................................C-2
Appendix D: Wire Colors ........................................................ D-1
D.1 Earlier Cable Revisions ..............................................................................D-2
Appendix E: Instrument Connectivity ................................... E-1
E.1 Introduction ................................................................................................. E-2
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Optilab rEX User's Guide (M1500 Rev. F)