Hach DR/700 - Page 571

61-15
CYANIDE, continued
10. Install module
61.01
in a DR/700.
11. Press: I/O
The display will show
610 nm
and module number
61.01
12. After 2 seconds,
the display will show
a program number,
the concentration
units and the zero
prompt. If necessary,
press the
UP ARROW
key until the lower
display shows
program number
61.03.1
13. Fill a 10-mL cell
to the 10-mL line
with sample (the
blank).
14. Place the blank
in the cell holder.
Note: In bright light it
may be necessary to
close the cell
compartment cover.
15. Press: ZERO
The display will
count down to 0.
Then the display will
show 0.000 mg/L and
the zero prompt will
turn off.