Wavelength Check; Stray Light Check - Hach Lange DR 3900 User Manual

6.8.3.3

Wavelength check

6.8.3.4

Stray light check

7. Inset sample cell 1 (Figure 3, page
(1) a press Next.
8. Follow the dialog indicated.
9. After the fifth test cell, the photometrical accuracy is
displayed in a log.
The Wavelength Check test is used to check wavelength
accuracy at 807 nm.
1. Press Wavelength Check in the "Optical Checks" menu.
2. Insert the cell adapter (A) for 10-mm rectangular cells in the
cell compartment (2).
3. Place the analysis cell (Neodym or BG20/2) in the cell
adapter.
4. Close the cell compartment cover.
5. Press Start.
The result will be displayed.
6. Compare the result with the analysis cell required values.
7. Press Cancel to return to Optical Checks.
The Stray Light test is used to measure the stray light in the
instrument at 340 nm.
Expanded programs
19) in cell compartment
115