Sample blank, Options Description Send Data icon | Hach DR 5000

Standard Operations

		Table 5 Barcode program options (continued)
	Options	Description

	Send Data icon /	To send data to a printer, computer or USB memory stick (Type A)
	Send Data
	Send Data

		This functions as a stopwatch. It helps to ensure that the steps of an analysis are correctly timed
	Timer icon	(e.g. reaction times, wait times, etc., can be exactly specified). When the specified time has
	Timer icon	elapsed, an acoustic signal is emitted. The use of the timer has no influence on the measurement

		program.

		A corrective dilution factor can be entered in order to take account of certain properties.
		The number entered at the dilution factor prompt will be multiplied by the result to compensate for
	Dilution Factor Off/On	the adjustment. For example, if the sample has been diluted by a factor of 2, enter 2. The default
	Dilution Factor Off/On	setting of the dilution factor is turned off.
		setting of the dilution factor is turned off.
		Note: When a dilution is in effect, the dilution icon will appear on the display.
		Note: If undiluted samples are used, set the dilution factor off.
	Chemical Form	Some of the stored tests/methods allow to select the chemical form and the measuring range.

	Edit	To modify an existing program

	Save as User Program	To store the selected parameters as a User Program, see section 6.1 on page 61.

	Recall Data	Call up saved measurement data, wavelength scans or time courses, see section 5.3 on
	Recall Data	page 35.
		page 35.
	Instrument Setup	Basic data of the instrument, see section 5.2 on page 23.

5.5.5 Sample blank

Turbidity and color in the sample matrix can falsify the results of a photometric analysis. The interference factors come from the sample or are created by reactions with the reagents.

The influence of turbidity and/or color can be eliminated or reduced by taking a sample blank reading.

In the barcode mode, a special cuvette/vial (TNT919) containing the sample blank is placed in cell compartment #1 after the sample reading has been taken and is automatically measured. The sample reading is then corrected by adding or subtracting the blank value. The final result is displayed, with the message "After blank value corr.".

Some barcode tests do not require a sample blank value to be determined, as turbidity and color are dealt with during the test

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Hach DR 5000 user manual Sample blank, Options Description Send Data icon, Edit

Contents

January 2008, Edition Page Table of Contents Table of Contents 101 Table of Contents Section Specifications Specifications Precautionary labels Safety informationGeneral Information Use of hazard information General Information Class 1 Laser Chemical and Biological SafetySource Lamp Safety General Information Overview of product General Information Operating environment Section InstallationUnpack the instrument Connection Installation Cell compartment Multi Cell Holder Top and Bottom 1 100 mm adapter optional Installation Multi Cell Holder Installation Installation Multi Cell Holder Beam path Beam path Changing the language setting Power the instrument on and offStart Up Language selection Start Up Overview Standard OperationsTips for the use of the touch screen Use of the alphanumeric keypad Main Menu options Standard Operations Main Menu Operator ID Instrument Setup modeStandard Operations Standard Operations Sample ID Display and sound preferences Date and time VIS-Lamp and UV-Lamp Lamp Control Effect caused by the lamp settings on the Measuring Mode Standard Operations USB connector Printer setupStandard Operations PC and printer Keyboard Printer Setup Hach Data Trans Print data Password Password deactivation Standard Operations Data Log Store, recall, send and delete dataAuto/manual data storage Recall stored data from the data log To send measurement data to a PC Send data from the data log Delete stored data from the data log Select Wavelength Scan or Time Course to recall data Data storage from wavelength scan or time courseRecall stored data from wavelength scan or time course Send data from wavelength scan or time course Option Press Wavelength Scan or Time Course and then Delete stored data from wavelength scan or time course Select a saved test/method enter user-specific basic data Stored ProgramsStored program options Stored programs options Reading Mode Timer iconStandard Adjust Options Description Store Off/On Set the reading mode Standard Operations Use of program timers Take single wavelength measurements single reading Set the dilution factorTake single wavelength measurements continuous readings Press OptionsMore…Dilution Factor Run a standard adjust Press Save as Default Change of the default setting of the chemical formSet the chemical form Press OptionsMoreChemical Form Press OptionsMoreReagent Blank Standard Operations Run a reagent blankMeasurement/analysis of a reagent blank Add stored programs to the favorite programs list Standard Operations Analysis of samples Cell compartment #1 Barcode Programs Standard Operations Complete a barcode 13 mm test/vial Changing the standard settingSelect the measuring range Select the chemical evaluation form Barcode program options Basic test-specific and sample-specific data settings Edit Sample blankOptions Description Send Data icon Manual update of a barcode test Update/edit barcode testsProgram update options Enter the Name Enter the Measurement Process Enter the Version Timer 1, Timer 2, Timer 3 and Timer Option 1 Manual update of test data Update an existing barcode testOption 2 Manual check/revision of test data Press OptionsMoreEdit Program a new test Upgrade of the instrument software Press OK to return to the System Checks menu Standard Operations Program a user method Advanced OperationsUser Programs Program Number Advanced OperationsProgram Name Program Type Concentration resolution number of decimal places Single wavelength settingsUnits Wavelength single wavelength program type Absorbance formula multi-wavelength program type Multi wavelength settingsChemical form Concentration Factor Kx List of available absorbance formulasWavelength λx Calibration by entering calibration values Calibration settings for single and multi wavelength modeCalibration settings Advanced Operations Advanced Operations Advanced Operations Upper and lower limits of the measuring range Store a user programAdditional user-defined parameters and functions Chemical form 2 / chemical form 3 / chemical form Timer 1 / Timer 2 / Timer 3 / Timer Definitions of the program points Advanced Operations Free programming program typeMeasurement process Enter a new element of a measuring sequence Content and definition of the keys Key / Zeroing Key / Reading Process Timer key Delete an element of a measuring sequence Enter the calibration formula evaluation formulaInsert an element of a measuring sequence Enter calibration formula C1 New Number Edit formula key descriptionsScreen Key Description C2 On Enter the next calibration formula C2 or Cn Select Conc. key Enter variablesSave a free programming user program 4 Add, edit and delete user programs from the favorites list Advanced Operations Select a user program Delete Add to FavoritesEdit Delete a favorite program Favorite ProgramsRecall a favorite program Method Measures to identify other interference factors ChecklistStandard Addition monitoring/checking results Sample volume Peak volume Standard additionCheck the standard solution Complete a standard addition Press OptionsMoreStandard Addition Peak volume/sample volume methods Description of the table of readings Advanced Operations Program Set up single wavelength modeSingle wavelength setup options Options Description Concentration resolutionConcentration factor Take single wavelength measurements continuous readings Reading modeTake single wavelength measurements single reading Multi-wavelength setup options Set the reading mode at different wavelengths Absorbance formula Press Absorbance Formula Concentration factor For data storage, see .3.1.1 on Wavelength scan setup options Set up the wavelength scan Scale & Units Setting wavelengthOption Description Integral Cursor modeSelect view displaying table Scale & units Press Scale & Units Wavelength scan reading Navigating the wavelength scan Highlight Reference Advanced Operations Work with reference scans 100 Time course setup options Time course setup parametersTime course of absorbance/transmittance 101 Time & interval Time course scan readingScale & units 102 103 Analysis of time course data 104 Navigation of a time scan or a time scan analysisNavigating the time scan 105 System checksInstrument information 106 Advanced Operations Upgrade of the instrument softwareOptical checks 107 Wavelength check 108 Noise check 109 110 Stray light check 111 Absorbance check 112 Drift check Press Nominal Values 113 Verification kit 114 Press Verification 115 Output checksLamp history 116 Advanced Operations Factory serviceService time 117 Instrument Backup 118 Restore backup data 119 120 Cleaning requirements MaintenanceSpectrophotometer Display Maintenance Lamp replacementTungsten lamp replacement 122 123 Deuterium lamp UV replacement 124 Fuse replacement 125 Filter pad maintenanceFilter pad replacement 126 Base of DR 5000 with filter grid 127 Section Troubleshooting 128 Troubleshooting Description Cat.-No Section Replacement Parts129 130 Replacement Parts 131 Contact Information 132 Contact Information Limitations Limited WarrantyLimitation of Remedies 133 134 Limited Warranty 135 Index 136