Contents
Variable Wavelength Detectors (VC-D40, VF-D40)
Operating Manual
Page 7
6.3 Control Elements..................................................................................................78
6.3.1 Keypad...................................................................................................... 78
6.3.2 Status Indicators....................................................................................... 79
6.4 Power On/Off Control ..........................................................................................81
6.5 Preparing the Device for Operation .....................................................................82
6.5.1 Guidelines for Use of Flow Cells ............................................................... 84
6.5.2 Turning On the Lamps .............................................................................. 85
6.6 Operational Modes of the Device.........................................................................86
6.6.1 Single-Channel Mode ............................................................................... 86
6.6.2 Multi-Channel Mode ................................................................................ 86
6.7 Important Operating Parameters.........................................................................88
6.8 Optimizing the Performance of the Device ..........................................................90
6.8.1 General Guidelines ................................................................................... 90
6.8.2 Overview of Optimization Parameters..................................................... 91
6.8.3 Wavelength .............................................................................................. 91
6.8.4 Data Collection Rate................................................................................. 92
6.8.5 Response Time and Peak Width............................................................... 92
6.8.6 Baseline Behavior..................................................................................... 93
6.9 Shutting Down the Device ....................................................................................94
6.9.1 Short-Term Shutdown (Interruption of Operation) ................................. 94
6.9.2 Long-Term Shutdown............................................................................... 95
7 Maintenance and Service ........................................................... 99
7.1 Introduction to Maintenance and Service......................................................... 100
7.2 Safety Guidelines for Maintenance and Service................................................ 101
7.3 General Rules for Maintenance and Service ..................................................... 103
7.4 Routine and Preventive Maintenance............................................................... 104
7.4.1 Maintenance Plan .................................................................................. 104
7.4.2 Cleaning or Decontaminating the Device............................................... 104
7.4.3 Predictive Performance.......................................................................... 106
7.5 Lamps ................................................................................................................ 107
7.5.1 Replacing the UV Lamp (Deuterium Lamp) ............................................ 107
7.5.2 Replacing the VIS Lamp (Tungsten Lamp) .............................................. 110
7.6 Flow Cell ............................................................................................................ 114
7.6.1 Guidelines for Handling Flow Cells......................................................... 115
7.6.2 Cleaning the Flow Cell ............................................................................ 115
7.6.3 Removing the Flow Cell.......................................................................... 116
7.6.4 Installing a Diagnostic Cell...................................................................... 118