21
METHOD PROCEDURE
• Add one packet of
HI93717B-0
Phosphate HR
Reagent B to the cuvette. Replace the plastic
stopper and the cap, and shake gently until
completely dissolved.
• Insert the cuvette into the holder and ensure that
the notch on the cap is positioned securely in the
groove.
• Press
Read
. The display will show a 5 minute countdown prior to the measurement.
To skip the timer, press
Read
twice. When the timer ends, the meter will perform
the reading. The instrument displays the results in
mg/L
of
phosphate (PO
4
3
¯)
.
• Press the
key and use the functional keys to select
Chemical Form
.
• Use the functional keys and press
Select
to change the displayed chemical formula
to
mg/L
of
phosphorus (P)
or
phosphorus pentoxide
(
P
2
O
5
).