Hach DR 2800 - Page 3

3
Spec Filter accuracy testing—DR 5000 and DR 2800
5. Enter the maximum wavelength absorbance into the test record in the "Actual
value" column for the Ho filter. Open the lid and remove the filter.
6. Select
OPTIONS / λ and enter 806–809, step 0.1 nm, then press OK.
7. Press
ZERO.
8. Insert the BG20/2 filter into the 10-mm square cell holder and close the lid.
Press
READ.
9. Enter the maximum wavelength absorbance into the test record in the "Actual
value" column for the BG20/2 filter. Open the lid and remove the filter.
Wavelength accuracy—DR 2800
1. Install the 10-mm square cell holder (Adapter A). Turn on the instrument.
2. Select
SYSTEM CHECKS>OPTICAL CHECKS>WAVELENGTH CHECK.
3. Insert the BG20/2 filter into the 10-mm square cell holder and close the lid.
Press
START.
4. Enter the maximum wavelength absorbance into the test record in the “Actual
value” column for the BG20/2 filter. Open the lid and remove the filter.
5. Press
CANCEL.