Hach-Lange DR 6000 User Manual - Manual (Page 102)

102
Expanded programs
Reading Mode
The Reading Mode functions enable the sample to be analyzed
with a single reading, continuous readings or with an optional
carousel insert (sample changer).
• Single Reading: A single reading is taken after Read is
pressed.
• Continuous Readings: The current measurement value is
displayed continuously after zero measurement without the
need to press Read.
• Carousel 1 inch square: Performs a series of
measurements in 1-inch square cells with an optional
carousel insert.
• Carousel 1 cm square: Performs a series of measurements
in 1-cm square cells with an optional carousel insert.
Additional information can be found in the carousel user manual.
(
section 5.4.9, page 61 ).
6.3.2 Take single wavelength readings (single reading)
1. Insert the zero solution cell into the cell compartment.
2. Press Zero.
Note: The Read key is only active after the zero reading has been
completed.
3. Insert the analysis cell into the cell compartment.
4. Press Read.
5. For data storage, refer to section 5.3.1, page 42 .
6.4 Multi Wavelength mode – readings with more than one wavelength
In the Multi Wavelength mode, absorbance values can be
measured at up to four wavelengths and the results can be
mathematically processed to obtain sums, differences and
relationships.
• Absorbance readings: The light absorbed by the sample is
measured in absorbance units.
• % Transmittance measures the percent of the original light
that passes through the sample and reaches the detector.
• Turning on the concentration factor allows selection of a
specific multiplier for converting absorbance readings to
concentration. In a graph of concentration versus the
absorbance, the concentration factor is the slope of the line.
Concentration is calculated using a single factor for each
wavelength, which is input by the user.
6.4.1 Set reading mode at different wavelengths
Press Multi Wavelength in the Main Menu. Press Options for
Parameter Setup.