Hach DR 6000 Manuel D'utilisation De Base page 155

Main menu
A variety of modes may be selected from the Main Menu. The following
table briefly describes each menu option.
You find a toolbar on the right in the display. Press to activate the
various functions.
Table 2 Main Menu options
Option Function
Stored programs are pre-programmed methods that make
Stored
use of HACH chemicals and HACH-LANGE pipette tests.
Programs /
The working procedures for HACH-LANGE tests are
Barcode
included in the test packs.
Programs
Further information, as well as illustrated, step-by-step
(HACH-LANGE
process instructions for analyses using HACH programs, are
programs)
available on the website of the manufacturer.
Table 2 Main Menu options
Option Function
User programs make "made to measure analysis" possible:
• Users can program methods they have
developed themselves
User Programs
• Existing HACH- and HACH-LANGE procedures
can be stored as user programs. These
procedures can then be modified according to
separate requirements.
List of methods/tests created by the user to suit his own
Favorites
requirements.
Single wavelength readings are:
Absorbance readings: The light absorbed by the sample is
measured in absorbance units.
Transmittance reading (%): Measures the percent of the
Single
original light that passes through the sample and reaches the
Wavelength
detector.
Concentration readings: A concentration factor can be
entered to enable the measured absorbance values to be
converted into concentration values.
In the Multi Wavelength mode, absorbance (Abs) or
percentage transmittance (%T) is measured at up to four
Multi
wavelengths and absorbance differences and absorbance
Wavelength
relationships are calculated. Simple conversions into
concentrations can also be carried out.
A wavelength scan shows how the light from a sample is
absorbed over a defined wavelength spectrum. This function
Wavelength can be used to determine the wavelength at which the
Scan maximum absorbance value can be measured. The
absorbance behavior is displayed graphically during the
scan.
The time scan records the absorbance or % transmittance at
Time course
a wavelength over a defined time.
The "System check" menu offers a number of options,
including optical checks, output checks, lamp history,
System checks
instrument update, service time, settings for analytical quality
assurance and instrument backup.
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