Hach DR/700 Procedures Manual page 453

CHROMIUM, HEXAVALENT,
USING ACCUVAC AMPULS
1.
Install module
55.01
in a DR/700.
2.
Press:
I/O
The display will show
550 nm
and module number
55.01
55-5
continued
3.
After 2 seconds,
the display will show
a program number,
concentration units
and the zero prompt.
If necessary, press the
key until
UP ARROW
the lower display
shows program
number
55.02.1