Hach DR/700 - Page 627

61-71
OXYGEN DEMAND, CHEMICAL, continued
1. Install module
61.01
in a DR/700.
2. Press: I/O
The display will show
610 nm
and module number
61.01
3. 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
61.08.1
4. Fully insert a
COD Vial Adapter
into the cell holder
with the tabs in the
square slot.
5. Clean the outside
of the blank with a
towel.
Note: Wiping with a
damp towel followed by
a dry one will remove
fingerprints or other
marks.
6. Place the blank
into the adaptor with
the Hach logo facing
the front of the
instrument.
Note: Avoid bright light
when making
measurements.
COLORIMETRIC DETERMINATION, 0 to 1,500 and
0 to 15,000 mg/L COD