Hach-Lange DR2800 eco - Manual (Page 42)

42
Advanced Operations
4. Insert the sample cuvette/cell or reference filter into the cell
compartment #2. Close the cell compartment. Press Start.
5. The ”Average“ and ”Std Deviation“ are calculated from
100 successive absorbance measurements. The result is
displayed and is to be compared with the nominal/standard
data (given in the quality control certificate) of the sample
cuvette/cell.
Note: Failings and passings will be defined by the user.
6. Press Cancel to return to Optical Checks.
6.1.3.3 Absorbance check
The Absorbance Check test is used to test the photometric
accuracy and repeatability of the instrument.
Press Absorbance Check in the Optical Checks menu.
7. Press λ to input the wavelength.
8. Input the wavelength and press OK to confirm.
9. Remove any cuvette/sample cell from the cell compartment
and press Zero.