Hanna-instruments HI 83218 Manual do Utilizador descarregar pdf (Página 17)

Ammonia HR

• Remove the cuvette.

• Add 4 drops of HI 93733A-0 Nessler Reagent. Replace

the cap and mix the solution.

• 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 30 seconds and press Read. When the timer ends the meter will perform the

reading. The instrument displays the results in mg/L of ammonium nitrogen (NH

-N).

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

• Press the Chem Frm key to convert the result in mg/L of ammonia (NH

) and ammonium (NH

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

INTERFERENCES

Interference may be caused by:

Acetone, alcohols, aldehydes, glycine, hardness above 1 g/L, iron, organic chloramines, sulfide, various

aliphatic and aromatic amines.

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Hanna-instruments HI 83218 Manual do Utilizador Página 17