Hanna-instruments HI 83211 Manuale Utente Scaricare il pdf (Pagina 57)

Silica

• Press the Zero key. The display will show “-0.0-” when the meter is zeroed and ready for measurement.

• Remove the cuvette and add the content of one packet of

HI 93705C-0 Amino acid reagent and shake until it is

completely dissolved.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown

prior to the measurement. Alternatively, wait for exactly 3

minutes and press Read. When the timer ends the meter

will perform the reading. The instrument displays

concentration in mg/L of silica (SiO

• Press  or  to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of Silicon (Si).

• Press  or  to return to the measurement screen.

INTERFERENCES

Interference may be caused by:

Phosphate above 60 mg/L

Phosphate above 75 mg/L

Sulfide and high concentration of iron

Eliminate color and turbidity interferences by zeroing the meter with the original water sample.

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Hanna-instruments HI 83211 Manuale Utente Pagina 57