Hanna Instruments HI83300 Instruction Manual page 171

•Press the Chem Frm key to convert the result to mg/L of potassium oxide (K O).
2
•Press or  to return to the measurement screen.
INTERFERENCES
Interferences may be caused by:
Ammonium above 10 ppm
Calcium above 10000 ppm as CaCO
3
Chloride above 12000 ppm
Magnesium above 8000 ppm as CaCO
3
Sodium above 8000 ppm
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