Hach DR/700 - Page 419

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MANGANESE, HR, continued
10. Press: ZERO
The display will
count down to 0.
Then the display will
show 0.0 mg/L and
the zero prompt will
turn off.
11. Within eight
minutes after the 2-
minute period, place
the prepared sample
in the cell holder.
Note: In bright sunlight
it may be necessary to
close the cell
compartment cover.
12. Press: READ
The display will count
down to 0. Then the
display will show the
results in mg/L
manganese (Mn).
Note: To convert results
to other units, see
Table 1.
Table 1. Conversion Factors
To convert results from To Multiply by
mg/L Mn mg/L MnO
4
- 2.16
mg/L Mn mg/L KMnO
4
2.88
8 minutes