Hach DR 2800 - Page 2

2
Spec Filter accuracy testing—DR 5000 and DR 2800
Test Procedures
Stray light test
1. Install the 10-mm square cell holder (Adapter A with the DR 2800). Turn on
the instrument.
2. Press
SINGLE WAVELENGTH, then OPTIONS / λ.
3. Enter test
340 and press OK.
4. Press
ZERO.
5. Insert the KV450/3 filter into the 10-mm square cell holder and close the lid.
Press
READ.
6. Enter the measured value into the test record under “Actual value” for the KV450/3
filter. Open the lid and remove the filter.
Photometric accuracy
1. Install the 10-mm square cell holder (Adapter A with the DR 2800). Turn on
the instrument.
2. Press
OPTIONS / λ, enter 546, then press OK.
3. Press
ZERO.
4. Insert NG9/1 filter into the square cell holder then close the lid. Press
READ.
5. Enter the measured value into the test record in the “Actual value” column for the
NG9/1 filter. Open the lid and remove the filter.
6. Insert the NG5/2 filter into the 10-mm square cell holder then close the lid.
Press
READ.
7. Enter the measured value into the test record in the "Actual value" column for the
NG5/2 filter. Open the lid and remove the filter.
8. Insert the NG11/2 filter into the 10-mm square cell holder then close the lid.
Press
READ.
9. Enter the measured value into the test record in the "Actual value" column for the
NG11/2 filter. Open the lid and remove the filter.
10. Press
EXIT or select Main Menu.
Wavelength accuracy—DR 5000
1. Install the 10-mm square cell holder. Turn on the instrument.
2. Press
SINGLE WAVELENGTH, then OPTIONS / λ. Enter 358–362, step 0.1 nm, then
press
OK.
3. Press
ZERO.
4. Insert the Ho filter into the 10-mm square cell holder and close the lid. Press
READ.