Hach DR2400 - Page 266

Cyanide
Cyanide
Page 2 of 8
Cyanide_PP_Other_PPZ_Eng_Ody.fm
5. Leave the sample cell
undisturbed for an
additional 30 seconds.
6. Add the contents of
one CyaniVer 4 Cyanide
Reagent Powder Pillow.
Cap the sample cell.
7. Shake the sample for
10 seconds. Immediately
proceed to step 8.
(Delaying the addition of
the CyaniVer 5 will
produce low test results.)
8. Add the contents of
one CyaniVer 5 Cyanide
Reagent Powder Pillow.
Cap the sample cell.
9. Shake the cell
vigorously.
If cyanide is present, a
pink color will develop.
10. Touch the timer icon.
Touch
OK.
A 30-minute reaction
period will begin.
The solution will turn
from pink to blue.
11. When the timer
beeps, fill another round
sample cell with 10 mL of
sample. (This is the
blank.)
12. Wipe the blank and
place it into the cell
holder.
13. Touch Zero.
The display will show:
0.000 mg/L CN
–
14. Wipe the prepared
sample and place it into
the cell holder.
15. Touch Read.
Results will appear in
mg/L CN
–
.
10 mL
Zero
10 mL
Read