Hach DR/700 - Page 565

61-9
COBALT, continued
10. Fill a 10-mL cell
to the 10-mL line
with the blank. Cap.
11. Place the blank
in the cell holder.
Note: In bright light, it
may necessary to close
the cell compartment
cover.
12. Press: ZERO
The display will
count down to 0.
Then the display will
show 0.00 mg/L and
the zero prompt will
turn off.
13. Fill a 10 mL cell
to the 10-mL line
with the prepared
sample. Cap.
14. Place the
prepared sample in
the cell holder.
Note: In bright light, it
may necessary to close
the cell compartment
cover.
15. Press: READ
The display will
count down to 0.
Then the display will
show the results in
mg/L cobalt (Co).