MODEL 2100AN LABORATORY TURBIDIMETER INSTRUMENT ...

TABLE OF CONTENTS, continued
3.2 Calibration ................................................................................................................................................................ 36
3.2.1 Formazin Stock Solution................................................................................................................................. 37
3.2.2 Dilution Water ................................................................................................................................................. 37
3.2.3 Preparing Recommended Formazin Dilutions ................................................................................................ 37
3.2.4 Calibrating the 2100AN (using Formazin Standards)..................................................................................... 39
3.2.5 Using Gelex ® Secondary Turbidity Standards................................................................................................ 42
3.2.6 Formulating Formazin Stock Solution ............................................................................................................ 43
3.3 Special Research Applications.................................................................................................................................. 44
3.3.1 Ignoring Dilution Water .................................................................................................................................. 44
3.3.2 Editing Calibration Data Points....................................................................................................................... 44
3.3.3 Preparing Formazin Dilutions - User Selected................................................................................................ 45
3.3.4 Calibrating the 2100AN (user selected standards).......................................................................................... 45
SECTION 4 AIR PURGE SYSTEM..................................................................................................................... 47
4.1 Air Purge Connection ............................................................................................................................................... 47
SECTION 5 USING FLOW-CELL SYSTEM APPARATUS ......................................................................... 49
5.1 Description................................................................................................................................................................ 49
5.2 Flow-Cell Kits (Low Pressure) ................................................................................................................................. 50
5.2.1 Manual Flow-Cell Kit (Low Pressure)............................................................................................................ 51
5.2.2 Automated Flow-Cell Kit (Low Pressure) ...................................................................................................... 54
5.2.3 Tips for Flow-Cell Kits (Low Pressure) .......................................................................................................... 59
5.2.4 High Pressure Flow-Cell Kit ........................................................................................................................... 60
5.2.5 Flow-Cell Maintenance ................................................................................................................................... 63
SECTION 6 DATA OUTPUT.................................................................................................................................. 65
6.1 Recorder Output........................................................................................................................................................ 65
6.1.1 Setting Recorder Minimum Value................................................................................................................... 65
6.1.2 Setting Recorder Maximum Value .................................................................................................................. 66
6.1.3 Setting Recorder Minimum Output................................................................................................................. 66
6.1.4 Setting Recorder Full-Scale Output ................................................................................................................ 66
6.2 RS232 Connection .................................................................................................................................................... 67
6.3 Instrument Communication ...................................................................................................................................... 69
6.4 Printer........................................................................................................................................................................ 70
6.4.1 Built-In Printer ................................................................................................................................................ 70
6.4.2 Printer Setup Commands................................................................................................................................. 71
6.5 Using a Computer (RS232 Operating Commands) .................................................................................................. 72
SECTION 7 INSTRUMENT CLOCK.................................................................................................................. 75
7.1 Clock Description ..................................................................................................................................................... 75
7.2 Setting Hours and Minutes ....................................................................................................................................... 75
7.3 Setting the Month and Day ....................................................................................................................................... 75
7.4 Setting the Year......................................................................................................................................................... 75
7.5 Displaying Current Time .......................................................................................................................................... 75
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