
Contents
Diode Array/Multiple-Wavelength Detectors (VC-D11, VC-D12, VF-D11)
Operating Manual
Page 7
6.4 Power On/Off Control ..........................................................................................87
6.5 Preparing the Device for Operation .....................................................................88
6.5.1 Guidelines for Use of Flow Cells ............................................................... 90
6.5.2 Guidelines for Use of the Lamps .............................................................. 93
6.6 Important Operating Parameters.........................................................................95
6.7 Optimizing the Performance of the Device ..........................................................99
6.7.1 General Guidelines ................................................................................... 99
6.7.2 Overview of Optimization Parameters................................................... 100
6.8 Shutting Down the Device ................................................................................. 108
6.8.1 Short-Term Shutdown (Interruption of Operation) ............................... 108
6.8.2 Long-Term Shutdown............................................................................. 109
6.8.3 Restart after Long-Term Shutdown........................................................ 112
7 Maintenance and Service ......................................................... 113
7.1 Introduction to Maintenance and Service......................................................... 114
7.2 Safety Guidelines for Maintenance and Service................................................ 115
7.2.1 General................................................................................................... 115
7.2.2 Flow Cells................................................................................................ 117
7.3 General Rules for Maintenance and Service ..................................................... 118
7.4 Routine and Preventive Maintenance............................................................... 119
7.4.1 Maintenance Plan .................................................................................. 119
7.4.2 Cleaning or Decontaminating the Device............................................... 119
7.4.3 Predictive Performance.......................................................................... 121
7.5 Performing a Wavelength Validation and Calibration....................................... 122
7.6 Lamps ................................................................................................................ 124
7.6.1 Replacing the UV Lamp (Deuterium Lamp) ............................................ 124
7.6.2 Replacing the VIS Lamp (Tungsten Lamp) .............................................. 128
7.7 Flow Cell ............................................................................................................ 131
7.7.1 Guidelines for Handling Flow Cells......................................................... 131
7.7.2 Preparing the Flow Cell for Storage ....................................................... 132
7.7.3 Cleaning the Flow Cell ............................................................................ 134
7.7.4 Removing the Flow Cell.......................................................................... 134
7.8 Diagnostic Cell ................................................................................................... 137
7.8.1 Installing the Diagnostic Cell .................................................................. 137
7.8.2 Removing the Diagnostic Cell................................................................. 139
7.9 Replacing the Waste Line .................................................................................. 140
7.10 Replacing the Main Power Fuses....................................................................... 142