Hach DR/700 Procedures Manual page 228

Colorimeter
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SULFATE,
continued
USING ACCUVAC AMPULS
1.
Install module
45.01
in a DR/700.
Note: If sample cannot
be analyzed
immediately, see
Sampling and Storage,
below.
Note: The DR/700 must
be calibrated before
sample analysis. See
Calibration following
these steps.
2.
Press:
I/O
The display will show
450 nm
and module number
45.01
45-56
3.
After 2 seconds,
the display will show
a program number,
concentration units,
decimal position and
the zero prompt.
Press the
PROGRAM
key once or twice
until the lower
display shows
program number
45.000
The upper display
will show the
concentration of a
previous calibration
standard. If desired,
press the
UP ARROW
key to display the
other standard.

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