Hach Lange DR 3900 User Manual page 6

Table of contents
Section 6 Expanded programs.............................................................................................................73
6.1 User programs...................................................................................................................................73
6.1.1 Program a user method............................................................................................................73
6.1.1.1 Single wavelength settings ..............................................................................................75
6.1.1.2 Multi wavelength settings ................................................................................................76
6.1.1.3 Calibration settings for single and Multi Wavelength mode.............................................78
6.1.1.4 Store a user program.......................................................................................................81
6.1.1.5 Additional user-defined parameters and functions ..........................................................81
6.1.2 "Free programming" program type ...........................................................................................82
6.1.2.1 Measurement process .....................................................................................................84
6.1.2.2 Enter a new element of a measuring sequence ..............................................................84
6.1.2.3 Enter the calibration formula (evaluation formula)...........................................................87
6.1.2.4 Enter variables.................................................................................................................90
6.1.2.5 Save a free programming user program..........................................................................90
6.1.3 Select a user program ..............................................................................................................90
6.1.4 Add, edit and delete user programs from the favorites list .......................................................90
6.1.4.1 Add to Favorites ..............................................................................................................91
6.1.4.2 Edit ..................................................................................................................................91
6.1.4.3 Delete program................................................................................................................92
6.2 Favorites ...........................................................................................................................................92
6.2.1 Recall a favorite program .........................................................................................................92
6.2.2 Delete a favorite program.........................................................................................................92
6.3 Standard Addition - monitoring/checking results ...............................................................................93
6.3.1 Complete a standard addition ..................................................................................................94
6.4 Single Wavelength (absorbance, concentration and transmittance readings) ..................................97
6.4.1 Set up Single Wavelength mode ..............................................................................................97
6.4.2 Take single wavelength readings (single reading) ...................................................................99
6.5 Multi Wavelength mode - readings with more than one wavelength ................................................99
6.5.1 Set the Reading mode at different wavelengths.......................................................................99
6.5.2 Complete a reading in the Multi Wavelength mode................................................................102
6.6 Wavelength Scan mode - recording of absorbance and transmission spectrums..........................102
6.6.1 Set up the wavelength scan ...................................................................................................103
6.6.2 Perform a wavelength scan....................................................................................................105
6.6.2.1 Navigation of the wavelength scan graph or a wavelength scan analysis.....................106
6.6.3 Work with reference scans .....................................................................................................106
6.7 Time course of absorbance/transmittance ......................................................................................108
6.7.1 Time course setup parameters...............................................................................................108
6.7.2 Time course scan reading ......................................................................................................109
6.7.3 Analysis of time course data ..................................................................................................110
6.7.3.1 Navigation of a time scan or a time scan analysis.........................................................110
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