Hach-Lange DR2800 eco - Manual (Page 5)

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Table of Contents
Section 6 Advanced Operations ......................................................................................................................... 65
6.1 User Programs ................................................................................................................................................. 65
6.1.1 Program a user method .......................................................................................................................... 65
6.1.1.1 Single wavelength settings ......................................................................................................... 67
6.1.1.2 Multi wavelength settings ............................................................................................................ 68
6.1.1.3 Calibration settings for single and multi wavelength mode ......................................................... 70
6.1.1.4 Store a user program .................................................................................................................. 74
6.1.1.5 Additional user-defined parameters and functions ..................................................................... 74
6.1.2 Free programming program type ............................................................................................................ 76
6.1.2.1 Measurement process ................................................................................................................ 76
6.1.2.2 Enter a new element of a measuring sequence ......................................................................... 77
6.1.2.3 Enter the calibration formula (evaluation formula) ...................................................................... 79
6.1.2.4 Enter variables ............................................................................................................................ 82
6.1.2.5 Save a free programming user program ..................................................................................... 82
6.1.3 Select a user program ............................................................................................................................. 83
6.1.4 Add, edit and delete user programs from the favorites list ...................................................................... 83
6.1.4.1 Add to Favorites .......................................................................................................................... 84
6.1.4.2 Edit .............................................................................................................................................. 84
6.1.4.3 Delete ......................................................................................................................................... 84
6.2 Favorite Programs ........................................................................................................................................... 85
6.2.1 Recall a favorite program ........................................................................................................................ 85
6.2.2 Delete a favorite program ....................................................................................................................... 85
6.3 Standard Addition – monitoring/checking results ............................................................................................. 86
6.3.1 Complete a standard addition ................................................................................................................. 87
6.4 Single Wavelength (absorbance, concentration and transmittance measurements) ....................................... 91
6.4.1 Set up single wavelength mode .............................................................................................................. 91
6.4.2 Take single wavelength measurements .................................................................................................. 93
6.5 Multi-Wavelength mode – measurements at more than one wavelength ........................................................ 94
6.5.1 Set the reading mode at different wavelengths ....................................................................................... 94
6.5.2 Complete a measurement in the multi wavelength mode ....................................................................... 97
6.6 Time course of absorbance/transmittance ....................................................................................................... 98
6.6.1 Time course setup parameters ............................................................................................................... 98
6.6.2 Time course scan reading ....................................................................................................................... 99
6.6.3 Analysis of time course data ................................................................................................................. 100
6.6.3.1 Navigation of a time scan or a time scan analysis .................................................................... 101
6.7 System checks ............................................................................................................................................... 101
6.7.1 Instrument information .......................................................................................................................... 102
6.7.2 Upgrade of the instrument software ...................................................................................................... 102
6.7.3 Optical checks ....................................................................................................................................... 103
6.7.3.1 Wavelength check .................................................................................................................... 103
6.7.3.2 Stray light check ....................................................................................................................... 104
6.7.3.3 Absorbance check .................................................................................................................... 105
6.7.3.4 Verification kit ........................................................................................................................... 106
6.7.4 Output checks ....................................................................................................................................... 108
6.7.5 Lamp history ......................................................................................................................................... 108
6.7.6 Factory service ...................................................................................................................................... 108
6.7.7 Service time .......................................................................................................................................... 109
6.7.8 Instrument Backup ................................................................................................................................ 110
Section 7 Maintenance ...................................................................................................................................... 113
7.1 Cleaning requirements ................................................................................................................................... 113
7.1.1 Spectrophotometer ............................................................................................................................... 113
7.1.2 Display .................................................................................................................................................. 113
7.1.3 Cuvettes/sample cells ........................................................................................................................... 113