Hach AutoCAT 9000 - Page 4

Table of Contents
Table of Contents
Page 2
50081_BookTOC.fm
3.3.9 Rules for Routine Access Users...............................................................................................................29
3.3.10 Customizing the Station.........................................................................................................................30
3.3.11 Reset to Factory Settings........................................................................................................................30
3.3.12 Exit.........................................................................................................................................................30
3.4 Edition Mode ....................................................................................................................................................30
3.5 Using Sub-ID's..................................................................................................................................................31
Section 4 Software Setup.........................................................................................................................33
4.1 Accessing Supervisor Mode .............................................................................................................................33
4.2 Software Setup for Electrode and Temperature Sensor Installation .................................................................34
4.2.1 Software Setup for Disconnecting or Replacing Electrodes....................................................................35
4.3 Software Setup for Burette Installation ............................................................................................................36
4.3.1 Software Setup for Removing or Replacing the Burette .........................................................................37
4.4 Software Setup for Titrant Installation..............................................................................................................38
4.4.1 Software Setup for Switching or Replacing Titrants ...............................................................................39
4.5 Setting Titrant Concentration............................................................................................................................40
4.6 Obtaining the Certificate of Analysis for Hach Reagents.................................................................................41
Section 5 Collecting and Accessing Data ..........................................................................................43
5.1 Using the AutoCAT 9000 for Amperometric Methods ....................................................................................43
5.2 AutoCAT Titration ............................................................................................................................................43
5.2.1 Data Collection ........................................................................................................................................43
5.2.1.1 Current Range ....................................................................................................................43
5.2.1.2 Volume Increment .............................................................................................................44
5.2.1.3 Predose Volume .................................................................................................................44
5.2.1.4 Auto-scaling .......................................................................................................................44
5.2.2 End Point Determination..........................................................................................................................44
5.2.2.1 Manual End Point Determination (MEPD) .......................................................................45
5.2.2.2 Automatic End Point Determination (AEPD) ...................................................................45
5.2.2.3 Auto Detection ...................................................................................................................45
5.2.3 Parameters Used in the Calculation of the Analyte Concentration..........................................................45
5.2.3.1 Titrant Concentration .........................................................................................................45
5.2.3.2 Sample Volume ..................................................................................................................45
5.2.3.3 Dilution ..............................................................................................................................46
5.2.3.4 Reductant Concentration ....................................................................................................46
5.2.3.5 Reductant Volume .............................................................................................................46
5.2.4 Analysis Calculations...............................................................................................................................46
5.2.4.1 Calculation of Mean ...........................................................................................................47
5.2.4.2 Calculation of Standard Deviation (<5 replicate analyses) ...............................................47
5.2.4.3 Calculation of Standard Deviation (>5 replicate analyses) ...............................................47
5.2.5 Retrieving Analysis Results from Archives.............................................................................................48