Hanna-instruments HI 83099 Uživatelský manuál stáhnout pdf (Strana 39)

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Manganese LR

• Insert the second cuvette with the reacted sample into the instrument.

• Press Read to start the reading. The instrument displays the results in

µµ

µg/L of manganese.

• Press s or t to access the second level functions.

• Press the Chem Frm key to convert the result in µg/L of potassium permanganate (KMnO

) and

permanganate (MnO

¯).

• Press s or t to return to the measurement screen.

INTERFERENCES

Interference may be caused by:

Aluminum above 20 mg/L

Cadmium above 10 mg/L

Calcium above 200 mg/L as CaCO

Cobalt above 20 mg/L

Copper above 50 mg/L

Iron above 10 mg/L

Lead above 0.5 mg/L

Magnesium above 100 mg/L as CaCO

Nickel above 40 mg/L

Zinc above 15 mg/L.

Manganese LR

• Add 0.2 mL of the HI 93748B-0 Alkaline-cyanide reagent

solution to each cuvette, replace the caps and invert gently

to mix for about 30 seconds.

• Add 1 mL of the HI 93748C-0 0.1% PAN indicator

solution to each cuvette, replace the caps and shake

gently.

• Add 3 drops of Dispersing Agent (HI 93703-51) to each

cuvette, replace the caps and invert gently to mix for

about 30 seconds.

• Place the cuvette with the reacted deionized water (blank)

into the holder and close the lid.

• Press Timer and the display will show the countdown prior to zeroing the blank. Alternatively wait for

2 minutes and then press Zero. The display will show “-0.0-” when the meter is zeroed and ready for

measurement.

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Hanna-instruments HI 83099 Uživatelský manuál Strana 39