60
Blank
Sample
Blank
D.I. Water
Sample
Sample
Phosphorus, Reactive HR
• Replace the cap and mix by inverting each vial a couple of times.
•
Place the blank vial into the holder and push it completely down.
•
Press
Timer
and the display will show the countdown prior to the measurement and the “
Reaction
Time
” message. Alternatively, wait for 7 minutes and press
Zero
.
•
The instrument will perform a zero sequence and after a few seconds the display will show “
-0.0-
”. Now
the meter is zeroed and ready for measurement.
•
Remove the blank vial.
•
Place the sample vial into the holder and push it completely down.
• Press
Read.
The instrument will perform the reading. The instrument displays concentration in
mg/L of
phosphorus (P)
.
• Press
s
or
t
to convert the result in mg/L of phosphate (PO
4
3
-) or mg/L of P
2
O
5
.