Hach DR2400 - Page 422

Nitrate
Nitrate
Page 2 of 6
Nitrate_AVPP_HR_CDR_Eng_Ody.fm
5. When the timer
beeps, touch the timer
icon. Touch
OK.
A five-minute reaction
period will begin.
An amber color will
develop if nitrate is
present.
6. When the timer
beeps, fill a second round
sample cell with 10 mL of
sample (this is the blank).
7. Wipe the blank and
place it into the cell
holder.
8. Touch Zero.
The display will show:
0.0 mg/L NO
3
–
–N
9. Within one minute
after the timer beeps,
wipe the prepared
sample and place it into
the cell holder.
10. Touch Read.
Results will appear in
mg/L NO
3
–
–N.
10 mL
Zero
10 mL
Read