111
Phosphate LR
• Reinsert the cuvette into the instrument.
• Press Timer and the display will show the countdown prior to the measurement or, alternatively, wait
for 3 minutes and press Read. When the timer ends the meter will perform the reading. The instrument
displays concentration in mg/L of phosphate (PO
4
3
¯).
• Press or to access the second level functions.
• Press the Chem Frm key to convert the result in mg/L of phosphorus (P) and phosphorus pentoxide
(P
2
O
5
).
• Press or to return to the measurement screen.
INTERFERENCES
Interference may be caused by:
Iron above 50 mg/L
Silica above 50 mg/L
Silicate above 10 mg/L
Copper above 10 mg/L
Hydrogen sulfide, arsenate, turbid sample and highly buffered samples also interfere.
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