Hach DR2400 - Page 234

Chromium, Total
Chromium, Total
Page 2 of 4
ChromiumTot_PP_Other_AHY_Eng_Ody.fm
5. Touch the timer icon.
Touch
OK.
A five-minute reaction
period will begin.
6. When the timer
beeps, remove the
prepared sample. Using
running water, cool the
cell to 25 °C. Be sure the
caps are on tightly.
7. Remove cap and add
the contents of one
Chromium 2 Reagent
Powder Pillow. Cap and
invert to mix.
8. Remove cap and add
the contents of one Acid
Reagent Powder Pillow.
Cap and invert to mix.
9. Remove cap and add
the contents of one
ChromaVer 3 Chromium
Reagent Powder Pillow.
Cap and invert to mix.
10. Touch the timer icon.
Touch
OK.
A five-minute reaction
period will begin.
11. When the timer
beeps, fill another sample
cell with 25 mL of sample
(the blank).
12. Place the blank into
the cell holder.
13. Touch Zero.
The display will show:
0.00 mg/L Cr
14. Place the prepared
sample into the cell
holder.
15. Touch Read.
Results will appear in
mg/L Cr.
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
10 mL
20 mL
25 mL
Zero
10 mL
20 mL
25 mL
Read