Time course of absorbance/transmittance | Hach DR 2800 guide

Advanced Operations

6.6 Time course of absorbance/transmittance

The Time Course Mode is used to collect data in either absorbance or transmittance for a user-specified length of time. After the data are collected, they can be displayed in either graphic or tabular format.

6.6.1 Time course setup parameters

Press Time Course mode in the Main Menu. Press Options to configure parameters.

		Table 14 Time course setup options
	Option	Description

	More	For further Options

	Store icon	To store the scan data

	Time & Interval	To input the total time for data collection and the time interval between the collection of data
	Time & Interval	points
		points

	λ	To input the wavelength setting

	View Table	To display readings in absorbance, transmittance or concentration. This can be changed after
	View Table	sample data are collected.
		sample data are collected.

		Scale: In the automatic scaling mode, the y-axis is automatically adjusted so that the total scan is
	Scale & Units	displayed.
	Scale & Units	The manual scaling mode allows sections of the scan to be displayed.

		Units: Choice of absorbance or transmittance.

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

	Recall Data	Call up saved measurement data or time courses, see section 5.3 on page 37.

	Instrument Setup	Basic data of the instrument, see section 5.2 on page 27.

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Hach DR 2800 user manual Time course of absorbance/transmittance, Time course setup parameters, Time course setup options

Contents

January 2008, Edition Page Table of Contents Table of Contents 100 Table of Contents Section Specifications Specifications General Information Safety informationPrecautionary labels Use of hazard information Overview of product Chemical and Biological SafetyGeneral Information Unpack the instrument Section InstallationOperating environment USA adapter plug Power connectionsInstallation UK adapter plug AUS/China adapter plug Connection Interfaces Cell compartment #1 Cell compartments and adaptersCell compartment #2 Installation of the cuvette/sample cell adapters Cuvette/Sample cell adapters Installation of a cuvette/sample cell adapter Use of the light shield for measurements Installation of the light shield Light Shield Installation Protective Cover Mobile use of the DR 2800 for field analysis Installation Position the Protective Cover Beam path Shows the beam path of the DR Installation Start Up Power the instrument on and offChange the language setting Language selection Start Up Tips for the use of the touch screen Standard OperationsOverview Use of the alphanumeric keypad Standard Operations Main Menu Main Menu Options DR Standard Operations Instrument Setup modeOperator ID Standard Operations Sample ID Standard Operations Date and time Power ManagementDisplay and sound preferences Standard Operations USB connector Printer setupStandard Operations PC and printer Printer Setup Print data Hach Data Trans Password Password deactivation Standard Operations Auto/manual data storage Store, recall, send and delete dataData log Recall stored data from the data log Send data from the data log To send measurement data to a PC Delete stored data from the data log Data Storage from Time Course Standard Operations Time CourseRecall Stored Data from Time Course Send Data from Time Course Option Delete Stored Data from Time Course Stored program options Stored ProgramsSelect a saved test/method enter user-specific basic data Stored programs options Options Description Store Off/On Timer iconStandard Adjust Trans/Conc/Abs Standard Operations Use of program timers Standard Operations Set the dilution factor Run a standard adjustPress OptionsMore…Dilution Factor Set the chemical form Run a reagent blank Change of the default setting of the chemical formPress Save as Default Press OptionsMoreChemical Form Analysis of samples Press OptionsMoreReagent Blank Add stored programs to the favorite programs list Barcode Programs Complete a barcode 13 mm test/vial Select the measuring range Changing the standard settingSelect the chemical evaluation form Barcode program options Basic test-specific and sample-specific data settingsSetting of the dilution factor is turned off Program Sample blank Options Description Save as User Program Program update options Standard Operations Update/edit barcode testsManual update of a barcode test Enter the Name Enter the Version Enter the Measurement Process Timer 1, Timer 2, Timer 3 and Timer Option 2 Manual check/revision of test data Update an existing barcode testOption 1 Manual update of test data Press OptionsMoreEdit Software/Software Update Downloads under Downloads Upgrade of the instrument softwareProgram a new test Press OK to return to the System Checks menu User Programs Advanced OperationsProgram a user method Program Name Advanced OperationsProgram Number Program Type Units Single wavelength settingsConcentration resolution number of decimal places Wavelength single wavelength program type Chemical form Multi wavelength settingsAbsorbance formula multi-wavelength program type Wavelength λx List of available absorbance formulasConcentration Factor Kx Calibration settings Calibration settings for single and multi wavelength modeCalibration by entering calibration values Advanced Operations Advanced Operations Advanced Operations Additional user-defined parameters and functions Store a user programUpper and lower limits of the measuring range Timer 1 / Timer 2 / Timer 3 / Timer Chemical form 2 / chemical form 3 / chemical form Measurement process Advanced Operations Free programming program typeDefinitions of the program points Content and definition of the keys Key / Zeroing Enter a new element of a measuring sequence Process Timer key Key / Reading Inserting an element of a measuring sequence Enter the calibration formula evaluation formulaDeleting an element of a measuring sequence Enter calibration formula C1 Abs/Variables Edit formula key descriptionsScreen Key Description New Number C2 On Enter the next calibration formula C2 or Cn+- ÷x Save a free programming user program Enter variablesSelect Conc. key Advanced Operations Select a user program 4 Add, edit and delete user programs from the favorites list Edit Add to FavoritesDelete Recall a favorite program Favorite ProgramsDelete a favorite program Standard Addition monitoring/checking results Measures to identify other interference factors ChecklistMethod Check the standard solution Peak volume Standard additionSample volume Complete a standard addition Peak volume/sample volume methods Press OptionsMoreStandard Addition Description of the table of readings Advanced Operations Set up single wavelength mode Single wavelength setup options Concentration resolution Concentration factor Advanced Operations Take single wavelength measurements Set the reading mode at different wavelengths Multi-wavelength setup options Absorbance formula Press Absorbance Formula Concentration factor For data storage, see .3.1 on Time course setup options Time course setup parametersTime course of absorbance/transmittance Time & interval Time course scan readingScale & units Analysis of time course data Navigation of a time scan or a time scan analysis System checksNavigating the time scan Advanced Operations Instrument information Advanced Operations Optical checks Wavelength check Stray light check 100 Absorbance check 101 Press Verification Verification kitPress Nominal Values 102 103 Lamp history Factory serviceAdvanced Operations Output checks 104 Advanced Operations Service time 105 Advanced Operations Instrument Backup 106 Restore backup data 107 108 Spectrophotometer MaintenanceCleaning requirements Display Maintenance Insert or change of the battery110 Dispose of the lithium battery Information about using the battery111 Load the battery/Operating time Optimal operation of the batteryLifespan of the battery Operating time of a fully charged battery Lamp replacement 113 114 115 116 Section Troubleshooting 117 Troubleshooting 118 119 Section Replacement PartsDescription Cat. No Replacement Parts 120 Contact Information 121 Contact Information 122 Limitation of Remedies Limited WarrantyLimitations 123 Limited Warranty 124 Index 125 126