Hach DR 2800 user manual Advanced Operations Optical checks, Wavelength check

Advanced Operations

6.7.3 Optical checks

For each optical check, the measured results must be evaluated against user-specific requirements. The check options do not define tolerances.

1.Press Optical Checks in the System Checks menu.

The Optical Checks menu contains programs for checking the wavelength accuracy, stray light and photometric accuracy.

An optional test filter set (Verification Kit) (Section 9 on page 119) containing 6 precision glass filters, target values, tolerances and instructions is available and is recommended as an aid for carrying out comprehensive in-house instrument checks.

6.7.3.1 Wavelength check

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 adapter (A) for 10-mm rectangular cells in the cell compartment #2 and insert the sample cuvette/cell (Neodym or BG20/2) in the adapter. Close the cell compartment.

Press Start.

3.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.

4.Press Cancel to return to Optical Checks.

99