Hach-Lange DR 2800 eco - Manual (Page 69)

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Advanced Operations
Program Type:
6. Select the required option and press Next.
6.1.2 Single Wavelength and Multi Wavelength programs
If the Single Wavelength or the Multi Wavelength mode is selected,
the following parameters can be defined:
Unit:
7. Select the required unit from the list and press Next.
Note: A user-specific unit that is not included in this list can be added
in the edit program under Program Options, Edit.
Wavelength (Single wavelength program type):
Use the alphanumeric keypad to enter the measurement
wavelength. The entered wavelength must be in the range from
340–900 nm.
Press Next to go to the next input menu.
Table 9 Program Descriptions
Program Type Description
Single Wavelength Measurements at a defined wavelength
Multi 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.
Free Programming
This is an extended form of test or method programming. A high level of flexibility offers individual
options for creating a user program.