Hach DR 900 User Manual

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Hach DR 900 User Manual Manual pdf 11 page image

Select advanced program optionsEvery program has various additional advanced options from which toselect.1. Push Options to access Options>Advanced Options.2. Use the advanced options to specify more parameters.Option DescriptionAuto Save Toggle between On and Off. Every reading is automaticallysaved when the option is set to On. The reading can besaved manually when the option is set to Off.ChemicalFormSelect the alternate chemical form and the associatedmeasuring range on some factory-installed methods.ReagentBlankThe Reagent Blank correction can be used with some of thefactory-installed methods. Enter the result of a completedtest using deionized water as the sample. The blank value issubtracted from every result to correct for any backgroundcolor due to reagents. Enter the blank correction before theStandard Adjust option is used. Complete this correction foreach new lot of test reagents.StandardAdjustChange stored calibration. Complete a test on a knownstandard at a concentration near the top of the test range.Use this function to adjust the result to align the standardconcentration.Sort Program Select an alphabetical or numerical program order for thestored program list.Use an operator IDThe operator ID tag associates readings with an individual operator. Allstored data will include this ID.1. Push SETTINGS>Operator ID in the reading screen.2. Select, create or delete an operator ID:Option DescriptionCurrent ID Select an ID from a list. The current ID will be associatedwith the sample data until a different ID is selected.Option DescriptionCreate New ID Enter a name for a new operator ID. A maximum of10 names can be entered.Delete ID Erase an existing operator ID.Use a sample IDThe sample ID tag is used to associate readings with a particular sampleor with a location. If assigned, stored data will include this ID.1. Push SETTINGS>Sample ID in the reading screen.2. Select, create or delete an operator ID:Option DescriptionCurrent ID Select an ID from a list. The current ID will be associatedwith the sample data until a different ID is selected.Create New ID Enter a name for a new sample ID. A maximum of10 names can be entered. The samples are numbered insequence for each measurement until a different ID isselected (e.g., Pond 1, Pond 2).Delete ID Erase an existing sample ID.How to do a measurementBasic measurement steps are necessary to complete a measurement.Every method has a step-by-step procedure. Refer to the applicablemethod to run a specific test. The example that follows is a basicprocedure to complete a measurement.1. Select the applicable program from the programs menu (e.g., StoredPrograms, User Programs, Favorites).2. Install the cell adapter, if necessary.3. Push Start to start the program.4. Prepare the blank according to the method document. Close thesample cell and clean the optical faces of the sample cell with a lint-free cloth.English 11

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